Viral infectious disease

Researchers are testing a new combination therapy for chronic hepatitis B that pairs immune checkpoint inhibitors (sintilimab or envafolimab) with interferon and a standard antiviral drug (entecavir, tenofovir, or tenofovir alafenamide). The goal is to see if this approach can he…

Researchers are testing a combination of an anti-PD-1/anti-PD-L1 antibody, pegylated interferon alfa, and nucleos(t)ide analogues in adults with chronic hepatitis B. The goal is to see whether this mix can help more people lose hepatitis B surface antigen, which doctors call a fu…

This expanded access program lets doctors in Texas give banked, partially matched virus-specific T cells to children under 18 who have persistent or recurring EBV, CMV, adenovirus, or BK virus infections after an allogeneic stem cell transplant or CAR T therapy. The cells come fr…

This study tests a new two-drug combination (ASC22 and Peg-IFNa) to see if it can functionally cure chronic hepatitis B. About 150 adults with low virus levels will receive the treatment. The goal is to raise the cure rate above 50% without needing lifelong medication.

This pilot study is testing whether a 4-week course of two antiviral drugs—sofosbuvir plus glecaprevir/pibrentasvir—can cure chronic hepatitis C in people who have not been treated before and have only mild liver scarring. Participants who relapse after the short treatment will r…

This study tests a collaborative care model where pharmacists, doctors, and patient navigators work together to provide hepatitis C treatment to people who use drugs and live in supportive housing. 444 participants will be randomly assigned to either this model or usual care. The…

Researchers are testing a single injection vaccine designed to protect adults 60 and older from two respiratory viruses: RSV and HMPV. The trial plans to enroll about 8,000 participants who will randomly receive either the vaccine or a placebo. Scientists will track who develops …

This study tests an experimental flu vaccine called BPL-1357, given as a shot or nasal spray, to see if it is safe and can protect against multiple flu types. About 129 healthy adults aged 18-55 will receive the vaccine or a placebo, then be exposed to a flu virus in a controlled…

This early-stage trial is testing a new COVID-19 booster vaccine called OCU500, which is given as a nasal spray or inhaled mist instead of a shot. The study involves 80 healthy adults aged 18-64 who have already been vaccinated against COVID-19. Researchers are checking if the va…

This phase 3 trial is investigating whether giving a repeat dose of the RSVpreF vaccine to immunocompromised adults is safe and triggers a strong immune response. Participants, aged 18 and older, will receive one shot and be monitored for about a year. The study aims to find the …

This trial is testing an experimental vaccine designed to protect against two respiratory viruses at once: RSV and HMPV. The study involves about 2,400 adults aged 60 and older, who will receive one of several dose levels of the vaccine, a placebo, or a control vaccine. Researche…

This study tests an experimental RNA-based vaccine called BNT168 in adults both with and without HIV. The goal is to see if the vaccine is safe, triggers an immune response, and can help control the amount of virus in the body. Participants receive either the vaccine or a placebo…

This Phase 3 trial tests a new yellow fever vaccine (vYF) in about 2,440 healthy children aged 9 months to 5 years. Researchers will compare vYF to two licensed vaccines (Stamaril and YF-VAX) to see if it triggers a strong immune response and is safe. Some children will also rece…

Lassa fever is a severe viral illness common in West Africa, and no effective treatment exists. Researchers are testing a new vaccine candidate called MOPEVAC-Las in 72 healthy adults aged 18 to 55. The trial compares three different doses of the vaccine to a placebo, given as tw…

Researchers are testing an mRNA-based seasonal influenza vaccine in adults aged 18 to 64. The trial compares the immune response and side effects of the mRNA vaccine against standard flu vaccines. About 3,000 participants receive one injection in the upper arm and are followed fo…

This early-stage trial is testing whether experimental HIV vaccines can safely teach the immune system to recognize and fight the virus. Healthy adults without HIV will receive a protein nanoparticle vaccine, followed by a booster—either another protein nanoparticle or an mRNA va…

This study tests a new nasal spray vaccine (BLB-201) to prevent RSV, a common virus that can cause serious breathing problems in young children. About 137 infants and children aged 8 to 59 months will receive either the vaccine or a placebo. The goal is to check if the vaccine is…

Researchers are testing an RSV vaccine in healthy adults aged 60 and older to see how safe it is and how well it triggers an immune response. The trial enrolls about 600 people in China and the United States. In China, participants receive either the vaccine or a placebo; in the …

This study tests the Shingrix vaccine in people with HIV and healthy volunteers to see how well it boosts immunity against shingles. Participants receive two shots two months apart and are followed for a year. The goal is to understand if the vaccine works safely in those with di…

This study tests two experimental vaccines against Epstein-Barr virus (EBV), which causes mono and is linked to cancers. Researchers will give 750 healthy adults aged 18-29 three shots over several months to check for side effects and immune response. The goal is to find a safe v…

This study looks at how well the shingles vaccine Shingrix works in people who have had a stem cell transplant. About 55 adults who received the vaccine at least a year after their transplant will have their immune responses measured. Researchers want to see if the timing of the …

Researchers are testing a recombinant RSV vaccine made in CHO cells to see if it prevents lower respiratory tract disease in adults aged 60 and older. The trial plans to enroll 25,000 participants, including about 30% aged 70 and above, who receive either the vaccine or a placebo…

This study tests an experimental vaccine from GSK that targets two respiratory viruses: RSV and hMPV. About 1,800 adults aged 18-80 will receive different doses to check safety and immune response. The goal is to see if a single shot can protect against both viruses, which can ca…

This trial tests a new recombinant polio vaccine (rPV) against the current standard IPOL vaccine in healthy adults aged 18 to 60. The goal is to see if the new vaccine is safe and triggers a strong immune response. It is a small, early-stage study to gather initial data.

This Phase 3 trial tests updated versions of the BNT162b2 COVID-19 vaccine in adults and children aged 5 and older. Participants include those aged 5 to 64 with medical conditions that raise their risk of severe COVID-19, as well as everyone aged 65 and older. The study compares …

This study tests an experimental vaccine called RSVpreF in adults to see if it is safe and triggers a strong immune response against respiratory syncytial virus (RSV). Around 540 adults in India will receive either the vaccine or a placebo. Researchers will monitor for side effec…

This study compares a high-dose flu vaccine to the standard dose in 312 children aged 3-17 who have received a kidney, heart, or liver transplant within the past two years. The goal is to see if the high-dose vaccine triggers a stronger immune response and is just as safe. Partic…

This early-stage trial tests a new vaccine (rVSVΔG-MARV-GP) to see if it is safe and triggers an immune response against Marburg virus, a rare but severe disease. About 112 healthy adults aged 18-50 will receive either the vaccine or a placebo. The study focuses on side effects a…

This early-stage study tests a new vaccine designed to prevent Sudan virus disease, a severe illness similar to Ebola. About 112 healthy adults aged 18-50 will receive either the vaccine or a placebo to check for side effects and measure immune responses. The goal is to see if th…

This large phase 3 trial compares an investigational mRNA flu vaccine with a licensed flu vaccine in adults aged 65 and older. Each participant receives a single injection and is followed through the flu season. Researchers measure how well the mRNA vaccine prevents laboratory-co…

This early-stage trial is testing a new HIV vaccine booster called VRIPRO, given with an immune-boosting adjuvant, in 40 healthy adults aged 18-60 who previously received an HIV vaccine in the HVTN 706 study. Participants will get three shots over 24 weeks. The main goals are to …

This early-stage study is testing two new vaccines (V350A and V350B) designed to prevent diseases caused by the Epstein-Barr virus (EBV), which can cause infectious mononucleosis and is linked to certain cancers and multiple sclerosis. The study will enroll 250 healthy adults and…

This phase 2 trial tests a CMV vaccine (CMV-MVA Triplex) given before a liver transplant to see if it reduces the need for antiviral drugs after surgery. The study enrolls 416 CMV-negative adults awaiting a liver transplant from a CMV-positive donor. Participants receive two vacc…

This trial is testing a new vaccine called rBCG-N-RSV, which is based on the BCG vaccine (used for tuberculosis) but modified to also target respiratory syncytial virus (RSV). The study involves 200 adults over 60 years old, who will receive either this new vaccine or the standar…

This early-stage trial tests an experimental flu vaccine called FluMos-v2, with or without an adjuvant (ALFQ), in 45 healthy adults aged 18-50. Participants receive two shots four months apart and are followed for 15 months. The goal is to check safety and how well the vaccine tr…

This study tests a new chickenpox vaccine called NBP608 in about 780 children aged 1 to 12 years. The vaccine is compared to licensed vaccines to see how well it triggers immunity and if it is safe. Children receive one or two shots, and researchers monitor their immune response …

This trial is testing an experimental vaccine against H5N8, a type of bird flu, in healthy adults aged 18 and older. The vaccine is made using eggs and is given as two shots, with or without an adjuvant—a substance that may boost the immune response. The study aims to see if the …

Researchers are testing an experimental mRNA vaccine called ABO1108 to see whether it can prevent herpes zoster, the painful rash also known as shingles. The trial enrolls adults aged 40 and older, including people whose long-term conditions are stable. Participants receive two i…

This early-stage trial will test two experimental mRNA vaccines designed to teach the immune system to make antibodies that target HIV. About 42 adults with well-controlled HIV will receive the vaccines and then temporarily pause their regular HIV medication under close monitorin…

Researchers are testing an experimental vaccine called INT101 to see if it is safe and can trigger an immune response against norovirus. The trial enrolls about 30 healthy adults aged 19 to 48. Participants receive either a low dose, a high dose, or a placebo as three intramuscul…

This early-stage trial tests an experimental mRNA vaccine called YKYY025 designed to protect against respiratory syncytial virus (RSV). Healthy adults aged 18 and older receive a single injection of either the vaccine or a placebo. Researchers monitor safety, side effects, and im…

This early-stage study tests a new flu vaccine (STEMos1) in 56 healthy adults aged 18-50. Half of the participants get the vaccine with an adjuvant (a substance that boosts the immune response), and half get it without. The goal is to check safety and how well the vaccine trigger…

Researchers are testing whether a new oral polio vaccine called nOPV2, given at birth, helps infants block type 2 poliovirus in their intestines. The trial enrolls 740 healthy newborns who have received standard injected polio vaccines. Scientists will check stool samples for sig…

This study compares three different flu vaccines in 60 adults with blood cancers like leukemia or lymphoma. The goal is to see which vaccine triggers the strongest immune response in people with weakened immune systems. Participants will receive one of the vaccines and have their…

This large study will test the LC16m8 mpox vaccine in nearly 12,000 people aged one year and older in the Democratic Republic of Congo. Researchers want to see if the vaccine can prevent mpox disease and monitor its safety. Participants will receive the vaccine as part of the gov…

This trial tests whether a single dose of the 9-valent HPV vaccine triggers the same immune response as two doses in healthy adults aged 18 to 45. Researchers will measure antibody and B cell responses in blood, lymph nodes, and bone marrow. The goal is to understand how the vacc…

This study tests whether a combination of a culturally tailored video message from an HPV cancer survivor and a reminder phone call can increase the number of adolescents aged 10-12 who get the HPV vaccine. The intervention is delivered through a patient portal and direct outreac…

This study is testing how well the 9-valent HPV vaccine (Gardasil9) triggers an immune response in people born male who have used estrogen or androgen blockers, including those living with HIV. Participants receive three doses of the vaccine over six months, and their immune resp…

This study looks at whether giving a longer course (10 days instead of 5) or adding another antiviral (remdesivir) to the standard Paxlovid treatment helps immunocompromised people clear COVID-19 faster. About 256 adults with mild or no symptoms will be randomly assigned to diffe…

Researchers are following 1,500 people with HIV who start long-acting injections of cabotegravir and rilpivirine. The study collects clinical and lab data over time to see how well the regimen controls the virus and what factors affect tolerability, side effects, and quality of l…

This phase 2 trial tests whether adding an experimental vaccine (PRGN-2009) to standard chemotherapy can improve outcomes for people with newly diagnosed HPV-related throat cancer, potentially allowing them to skip radiation. About 70 adults will receive either chemo alone or che…

This study tests a program called ARC that helps HIV clinics improve their work environment and reduce discrimination. Researchers will compare viral suppression and care retention in clinics using ARC versus standard care. The goal is to see if better clinic culture leads to bet…

This study offers continued access to HIV medications for children and adolescents who completed a previous Gilead HIV treatment study. About 350 participants will receive their study drug or switch to a standard HIV medication, and researchers will monitor for side effects. The …

This study tests two smoking cessation methods—varenicline pills and nicotine patches with gum—in 660 people with HIV in South Africa. Participants will receive one of these treatments for 12 weeks, along with counseling. The goal is to see which approach works best to help them …

This study tests a new drug, brincidofovir, against the current treatment cidofovir for adenovirus infection in children and adults who have had a stem cell transplant. About 180 participants will receive one of the two drugs intravenously until the virus is cleared or up to 12 w…

This phase 3 trial tests tabelecleucel, a cell therapy made from donor immune cells, in 115 organ or stem cell transplant patients who developed a rare cancer (EBV+ PTLD) after standard treatment failed. The goal is to see if it can shrink tumors and improve outcomes. Participant…

This study tests two blood products used to control bleeding during liver transplant surgery. It compares a newer product, Intercept Fibrinogen Complex, to standard cryoprecipitate. The goal is to see if the newer product works as well or better at stopping bleeding. The study wi…

This phase 1 study tests a combination of two drugs, pomalidomide (a pill) and nivolumab (an infusion), in adults with cancers caused by viruses like Epstein-Barr, HPV, or hepatitis. The goal is to find a safe dose and see if the drugs can shrink tumors. Up to 58 people with Kapo…

This study tests a new combination of medicines (BPaLMZ) against the standard treatment for tuberculous meningitis, a serious brain infection. About 240 adults, including those living with HIV, will take part. The goal is to see if the new combo helps more people survive and reco…

This study tests whether a combination of three drugs (cyclophosphamide, bortezomib, and maraviroc) can safely prevent graft-versus-host disease after a half-matched bone marrow transplant in people living with HIV who also have a blood cancer. The trial involves 265 participants…

This phase 2 trial is testing a five-drug combination for a rare, aggressive type of T-cell leukemia called ETP-ALL. The study aims to see if this mix can help more patients achieve remission after their first treatment. About 27 newly diagnosed adults will receive the drugs, and…

This study tests a treatment called photodynamic therapy (PDT) for women with low-grade cervical precancer caused by HPV types 16 or 18. A photosensitizing cream is applied to the cervix, then activated with light to destroy abnormal cells. The trial will compare 225 women who re…

This phase 2 trial tests whether the drug nivolumab can slow or stop the growth of Epstein-Barr virus (EBV)-positive lymphoproliferative disorders and non-Hodgkin lymphomas. About 40 people aged 12 and older whose cancers have not responded to standard therapy will receive nivolu…

This study looks at a newly recognized disease called KSHV Inflammatory Cytokine Syndrome (KICS), caused by a virus that can also lead to certain cancers. Researchers aim to learn more about the disease and test experimental treatments, including antiviral and chemotherapy drugs,…

This phase 2 trial tests the drug daratumumab in 28 adults with three rare and aggressive blood cancers: primary effusion lymphoma, plasmablastic lymphoma, and multicentric Castleman disease. Participants must have failed standard therapy or be unable to receive it. Daratumumab i…

This study tests a drug called felzartamab in people who received a kidney transplant and later developed microvascular inflammation (MVI), a type of injury to small blood vessels in the new kidney that can lead to serious problems. The trial includes 81 participants who will rec…

This study tests a drug called abemaciclib, already used for breast cancer, in people with Kaposi sarcoma (KS), both with and without HIV. The goal is to find a safe dose and see if it can shrink KS tumors. About 111 adults will take the drug daily in 28-day cycles until their ca…

This study tests two drugs, PDS01ADC and M7824, that work with the immune system to fight Kaposi sarcoma (KS), a cancer often linked to HIV or organ transplants. The trial enrolls 80 adults with advanced KS that has not responded well to prior therapy. Participants receive PDS01A…

This study tests whether adding the drug lenacapavir to standard HIV treatment can reduce the hidden HIV reservoirs that remain in the body. About 50 adults with well-controlled HIV will either continue their usual therapy or receive lenacapavir injections plus pills. Researchers…

This early-stage trial tests adding lenalidomide to standard chemotherapy (EPOCH) for adult T-cell leukemia-lymphoma, a rare and aggressive blood cancer linked to HTLV-1 infection. The main goal is to find the safest dose of lenalidomide when used with chemo. Up to 30 adults with…

This study tests an oral medication called ibuzatrelvir in adults and teens with COVID-19 who are not hospitalized but have a high risk of becoming severely ill. Participants will receive either the drug or a placebo for 5 days, and researchers will track whether it reduces emerg…

This Phase 2 trial tests whether switching to a combination of two injectable drugs, GS-3242 and lenacapavir, works as well as staying on the daily pill Biktarvy for people with HIV who already have the virus under control. About 175 participants will be randomly assigned to eith…

This study tests a 10-session counseling program called STEP-AD for Black women living with HIV who have a history of trauma. The goal is to help them stick to their HIV medication and achieve viral suppression. Researchers will enroll 250 participants and compare the program to …

This study tests a program to expand medication-assisted treatment for opioid addiction in Kazakhstan, Kyrgyzstan, and Tajikistan. Researchers will train local health officials and track how many people start and stay on treatment. The goal is to reduce HIV spread among people wh…

This study tests whether giving a second dose of an RSV vaccine to pregnant women who already received it in a prior pregnancy is safe and boosts immunity. About 550 women aged 18-49, between 24-36 weeks pregnant, will receive either the vaccine or a placebo. Researchers will tra…

This phase 3 trial tests a new antiviral pill, ibuzatrelvir, alone or with an IV drug (remdesivir) in 300 adults with weak immune systems who have mild-to-moderate COVID-19. The goal is to see if the combination prevents hospitalizations or worsening symptoms better than remdesiv…

This study tests whether giving two powerful HIV-fighting antibodies along with standard HIV medication (ART) to people diagnosed very early with HIV can help them control the virus without daily pills later. 48 adults with acute HIV infection will receive either the antibodies o…

This study compares a light-activated gel treatment (ALA-PDT) to standard surgery (LEEP) for women with high-grade cervical precancer (HSIL/CIN2). About 560 women will receive either the gel plus red light therapy or surgery. The goal is to see if the gel treatment works as well …

This medical access program provides valemetostat tosylate, an oral drug already approved in Japan, to adults with peripheral T-cell lymphoma that has come back or stopped responding to at least two prior treatments. Participants take a 200 mg pill once daily in 28-day cycles for…

This study tests whether the antiviral drug molnupiravir can prevent severe illness from COVID-19 in adults at high risk. About 3,000 non-hospitalized participants will take either molnupiravir or a placebo for 5 days. The main goal is to see if the drug reduces hospitalizations,…

This study tests whether a once-weekly combination of two experimental drugs (islatravir and ulonivirine) works as well as the standard daily three-drug pill Biktarvy for people newly diagnosed with HIV-1. About 570 adults who have never taken HIV medication will be randomly assi…

This Phase 2 trial tests an experimental drug called AHB-137 in 84 adults with chronic hepatitis B who are already on antiviral therapy. The goal is to see if AHB-137 can clear the hepatitis B surface antigen and keep the virus under control, potentially leading to a functional c…

This study tests whether an injectable combination of two experimental drugs, GS-3242 and lenacapavir, can control HIV-1 as well as the daily pill Biktarvy. About 700 people with HIV who have never taken antiviral treatment will receive either the injectable regimen or the standa…

This study is testing the drug letermovir to prevent cytomegalovirus (CMV) infection in children and teens who have had a kidney transplant and weigh less than 40 kg. About 40 participants will receive the drug to see how it moves through their bodies and if it is safe. The goal …

This study tests whether the drug emetine can help people hospitalized with dengue fever. About 600 adults aged 18 to 65 will take either a low or high dose of emetine or a placebo pill for 7 days. Researchers will track if the drug reduces deaths or stops the disease from becomi…

This phase 1 trial is testing whether combining two drugs, azacitidine and abatacept, can shrink tumors in adults with T-cell lymphoma that has relapsed or not responded to prior treatment. Up to 20 participants will receive the drugs in 28-day cycles for up to 13 cycles. The stu…

This phase 3 trial is testing whether the oral antiviral secutrelvir can prevent severe COVID-19 in people who are at high risk for complications. Participants with mild symptoms and confirmed SARS-CoV-2 infection will receive either secutrelvir or a placebo. The study will measu…

Researchers in Armenia, Georgia, and Tanzania are comparing two ways to deliver hepatitis C care to people who inject drugs. One model confirms infection with an RNA test before starting sofosbuvir/velpatasvir, a daily pill that cures most hepatitis C. The other starts the same p…

This program provides emergency access to REGN-EB3, a combination of three antibodies, for people with confirmed Ebola virus disease. It is available to both adults and children in Ebola-affected regions, including pregnant women. The goal is to offer a potential treatment option…

This study tests a program called Tunawiri (meaning 'thrive') that adds mental health screening, counseling, and support to regular HIV care for pregnant and postpartum women in Kenya. The goal is to improve depression, anxiety, and HIV treatment success. Nine hundred women will …

This study tests a program called Light Inside, designed to reduce stigma for women living with HIV who use drugs. The program involves five small-group sessions that teach coping skills and communication strategies to help participants stay engaged in HIV care and adhere to thei…

This phase 3 trial compares a new drug, brelovitug, to an existing treatment (bulevirtide) for chronic hepatitis delta, a serious liver infection. About 172 adults with the infection will receive either drug to see which better controls the virus and normalizes liver enzymes. The…

This study is testing whether a drug called Cytogam (CMVIG) can prevent cytomegalovirus (CMV) infection in kidney transplant patients who are switching to a new immunosuppressant. The researchers will measure antibody levels in 30 adult patients over 8 weeks to see how the drug w…

This study tests a vaccine called CMV-MVA Triplex in 80 children who have had a stem cell transplant and are at risk for CMV infection. The goal is to find the best dose and see if it safely prevents CMV reactivation. Participants receive the vaccine and are monitored for side ef…

This study tests two remote programs—peer support groups and strengths-based case management—for adults aged 50+ living with HIV in rural Southern U.S. counties. The goal is to see if these programs help with viral suppression, medication adherence, quality of life, and depressio…

This study tests whether the antiviral drug letermovir can prevent cytomegalovirus (CMV) infection in children and teens who have had a stem cell transplant. About 105 participants aged 2 to 17 will receive letermovir and be monitored for 14 weeks. The goal is to see if the drug …

This study tests a drug called foscenvivint in people with liver cirrhosis caused by HIV and hepatitis C co-infection who also have hemophilia. Participants receive the drug once a week for 24 weeks. Researchers will check if the drug improves liver function and is safe to use.

This early-stage trial is testing a new treatment called DISP-10 for people with advanced gastrointestinal cancers, including colorectal and stomach cancers. The treatment combines a virus (DV-10) with specially engineered immune cells (CAR T cells) to attack cancer. The study ai…

This study tests whether teriflunomide, a drug already used for multiple sclerosis, can help people with a rare spinal cord disease called HAM/TSP caused by the HTLV-1 virus. About 24 adults will take the drug daily for 9 months to see if it reduces harmful immune activity and im…

This phase 2 trial tests whether propranolol, a drug usually used for high blood pressure, can treat Kaposi sarcoma. About 25 children and adults will take propranolol pills for up to 24 weeks. Researchers will measure how many participants see their tumors shrink or disappear, a…

This small Phase 2 trial tests whether alendronate, a drug used for bone health, can reduce the hidden HIV reservoir in people already on antiretroviral therapy. About 30 participants will receive either alendronate or a placebo, and researchers will measure changes in HIV DNA an…

This large Phase 3 trial is testing an experimental drug called tozorakimab in about 2,870 adults hospitalized with a viral lung infection who need extra oxygen. Participants receive either a single dose of tozorakimab or a placebo, added to standard care. The main goal is to see…

This pilot study will test a program that combines a trauma-focused therapy (STAIR) with peer-led HIV prevention (PrEP) support for transgender and nonbinary people who have experienced violence. The goal is to see if this combined approach is acceptable, feasible, and helps impr…

This study tests whether giving people with HIV or those taking PrEP two dedicated case managers helps them achieve better financial stability, food security, and health outcomes. Participants will work with their case managers to set goals and stay connected to care. The trial c…

This study tests whether a newer drug, letermovir, is safer and more effective than the standard valganciclovir for preventing CMV infection in heart transplant recipients. About 150 moderate- to high-risk adults will be enrolled. The main focus is on reducing side effects like l…

This study tests whether the antiviral drug remdesivir can help treat RSV (a common respiratory virus) in people whose immune systems are weakened by certain cancer treatments or autoimmune therapies. About 60 adults with confirmed RSV will receive remdesivir intravenously. The m…

This study tests whether special wraps made from human placental membrane can help heal diabetic foot ulcers and venous leg ulcers that won't close on their own. About 50 adults with diabetes or venous disease will receive weekly applications of one of four placental membrane pro…

This study compares two smartphone apps designed to help people living with HIV quit smoking. Participants will use one of the apps for about six months and also receive nicotine patches and gum. The goal is to see which app works better at helping people stay smoke-free, using b…

This study tests an experimental antiviral drug called S-337395 in adults with RSV who are at high risk for severe illness. Participants must have symptoms for less than 72 hours and a confirmed RSV infection. The goal is to see if the drug can lower the amount of virus in the bo…

This study compares two patient navigation models for people recently involved in the criminal legal system who have substance use disorders. One group gets standard navigation, while the other can choose from a menu of services like in-person clinics, mobile health units, or tel…

This study tests whether a new ultra-long-acting injectable HIV medication works as well as the current long-acting version. About 564 adults and teens with well-controlled HIV will receive either the ultra-long-acting or the standard long-acting shots. The goal is to see if the …

This phase 2 trial is testing two antivirals—molnupiravir (used for COVID-19) and a lab-made antibody called VIS513—in 500 people with early dengue. Participants must have had fever for less than 48 hours and a positive rapid test. The goal is to see if these drugs can clear the …

This early-stage study tests a new drug called IB-001 for chronic hepatitis B. It will first check safety in up to 60 healthy volunteers, then test multiple doses in about 30 people with chronic hepatitis B. The main goal is to see if the drug is safe and how the body handles it.

This early-stage trial is testing an experimental drug called GIGA-2339 in 48 adults with chronic hepatitis B. The main goal is to check if the drug is safe and how the body processes it. Participants will receive either GIGA-2339 or a placebo by IV infusion, and researchers will…

This study tests whether an HMB-enriched amino acid supplement can reverse muscle loss and improve recovery in 48 patients with alcoholic liver disease and COVID-19 pneumonia. Participants receive either the HMB supplement or a balanced amino acid mix for 90 days. Researchers wil…

This study tests whether baricitinib, a drug used for arthritis, can improve thinking, physical function, and quality of life in people with Long COVID. About 550 adults who had COVID-19 at least 6 months ago will receive either baricitinib or a placebo for 6 months. The main goa…

This pilot study tests a program where a clinical pharmacist talks with people with HIV about the risks of drinking alcohol (with or without cannabis) while taking multiple medications, especially those that affect the brain. The goal is to see if this approach can reduce falls a…

This phase 2 trial tests an experimental drug called AHB-137 in 70 adults with chronic hepatitis B who are already on antiviral pills. The drug is given as a shot under the skin. The goal is to see if it can lower the virus to undetectable levels and allow some people to stop the…

This early study tests whether immune cells from a donor can safely fight cytomegalovirus (CMV) or adenovirus (AdV) infections in people who have had a stem cell or solid organ transplant. About 20 participants will receive these virus-specific T-cells intravenously. The main goa…

This study tests whether adding the HIV drug rilpivirine to standard treatment can help people with HIV whose immune systems haven't fully recovered. About 21 adults with low CD4 counts despite years of successful viral suppression will receive rilpivirine for 48 weeks. The goal …

This study looks at how well the flu drug baloxavir marboxil works in children under 12 and whether it stops the flu from spreading to family members. About 1,100 kids with flu symptoms will take the drug, and researchers will check for drug resistance and track infections in hou…

This study tests whether a once-daily pill containing doravirine, lamivudine, and tenofovir can quickly control HIV in people who have never taken HIV drugs before. One hundred newly diagnosed adults will take the pill for 48 weeks. The main goal is to see how many have undetecta…

This early-stage trial is testing an experimental drug called GS-0415 in people with HIV who already have the virus well-controlled by standard antiretroviral therapy. The study will give single and multiple doses of GS-0415 to evaluate its safety, tolerability, and how the body …

This study tests a program called ADELANTE for Latinos with HIV whose virus is not well-controlled. Participants will either receive five sessions with a community health worker who helps solve problems, or five reminder phone calls. The goal is to see if the health worker progra…

This phase 2 trial tests a new combination of an anti-PD-1 antibody (a type of immunotherapy) plus standard antiviral drugs in 120 adults with chronic hepatitis B. The goal is to achieve a functional cure, where the virus is no longer active and patients can stop medication. The …

This study provides free testing for chlamydia, gonorrhea, syphilis, and HIV to Black youth aged 15-26 in New Orleans. Those who test positive can get treatment at no cost and are encouraged to bring their partners. The goal is to reduce STI rates and health disparities in this c…

Researchers are testing whether regulatory T cells taken from donated thymus tissue can control the dangerous immune overreaction that occurs in severe COVID-19 and acute respiratory distress syndrome (ARDS). The trial enrolls adults aged 18 to 65 who are hospitalized with acute …

This study tests whether a program that helps incarcerated men with HIV notify their sex and drug-use partners about possible HIV exposure can increase testing and treatment. Participants can choose to tell partners themselves or have a trained notifier do it anonymously. The goa…

This study will test a two-drug HIV pill (Dolutegravir/Lamivudine) in 210 pregnant women who have never taken HIV medication. The goal is to see if it controls the virus and prevents passing HIV to their babies. Participants will be compared to those on standard three-drug therap…

Researchers are testing venetoclax, a drug that prompts certain cells to self-destruct, in people living with HIV who take antiretroviral therapy. The goal is to see if it can safely reduce the size of the latent HIV reservoir, the hidden pool of virus that persists despite treat…

This study tests whether giving newborns plasma from people who recently recovered from chikungunya can prevent brain swelling or damage. The trial will include 60 newborns whose mothers were infected around the time of birth. Half will receive the plasma transfusion, and their o…

This Phase 2 trial tests an experimental drug called EYU688 in 108 adults with dengue fever. Participants receive either the drug or a placebo to see if it lowers the amount of virus in the blood and shortens fever. The study is currently recruiting.

Researchers are testing whether an experimental drug called resomelagon can safely treat adults with dengue fever. The trial enrolls 120 adults who have had dengue symptoms for less than three and a half days. Participants receive either resomelagon or a placebo, along with stand…

This study is for people with HPV-related throat cancer who have surgery to remove the tumor. Normally, some patients also get radiation afterward to lower the risk of cancer coming back. This trial tests whether it's safe to skip that radiation if a blood test two weeks after su…

Researchers are testing whether a higher daily dose of the antiviral drug entecavir suppresses hepatitis B virus better than the standard lower dose in adults whose livers are already scarred and failing. The trial enrolls 48 people with hepatitis B and decompensated cirrhosis. P…

This study tests whether adding immune cells from a family donor to standard antiviral drugs can help children and young adults clear stubborn adenovirus or cytomegalovirus infections after a stem cell transplant. About 69 participants will be randomly assigned to receive either …

This study tests whether a two-drug HIV regimen (dolutegravir plus lamivudine) works as well as the standard three-drug regimen in people who also have tuberculosis and are on TB treatment. About 150 participants who have never taken HIV medication will be randomly assigned to on…

This study tests whether switching from the current drug bulevirtide to a new drug called brelovitug can better control chronic hepatitis Delta. About 120 adults who have been on bulevirtide for at least 6 months will take brelovitug for 24 weeks. The main goal is to see if the v…

This study tests whether starting antiretroviral therapy within 7 days of an HIV diagnosis can reduce stigma and improve health outcomes for people who inject drugs. Researchers will develop a rapid-start strategy and pilot it with 135 participants at HIV clinics. The goal is to …

Researchers in Peru are studying whether moving HIV care from specialized hospitals to primary health clinics helps more people stay in treatment and keep the virus suppressed. The trial combines two training programs, NIATx and Project ECHO, to give primary care staff the skills…

This phase 2 trial tests whether applying a special gel (Geniwa gel) after laser removal can better treat recurrent genital warts and prevent them from returning. Adults who have had at least three laser treatments and still experience recurrences are eligible. Participants recei…

This study tests whether giving very early and intensive antiretroviral therapy, plus an antibody, can help infants with HIV achieve remission—meaning the virus stays undetectable even after stopping treatment. Researchers will enroll about 1,120 infants and follow them for safet…

This study looks at whether people with HIV who need a liver transplant can safely receive a liver from a donor who also had HIV. Researchers will compare infections and cancer rates between those who get an HIV-positive donor liver and those who get an HIV-negative donor liver. …

This study looks at whether SGLT2 inhibitors, a class of diabetes and kidney drugs, can improve blood flow through the heart's small arteries in women with HIV who also have diabetes or chronic kidney disease. Eighty women aged 45-75 will be randomly assigned to health education …

This study tests whether specially grown donor immune cells (called cytotoxic T lymphocytes) can safely and effectively control BK and JC virus infections in people with weakened immune systems, such as those with cancer, HIV, or organ transplants. About 100 participants will rec…

This early-stage trial tests whether a specially engineered herpes virus (G207) is safe to inject directly into the brain tumors of children whose cancer has returned. Up to 24 children aged 3 to 21 will receive the virus, and some will also get a small dose of radiation to help …

This study tests whether specially grown donor immune cells (viral-specific T-cells) can safely treat viral infections that often occur after a stem cell transplant. These infections can be serious and sometimes don't respond to standard antiviral drugs. The approach aims to boos…

This early-stage trial tests whether specially grown donor T cells can safely treat adenovirus infections in people with weakened immune systems, such as cancer patients. The cells are designed to target and kill the virus. The study will check for side effects and see if the inf…

This study looks at the best time to give hepatitis C medication to people without HCV who receive a kidney from an HCV-positive donor. One group starts the drug just before transplant and takes it for only 2 weeks; the other starts after transplant and takes it for 12 weeks. The…

This phase 2 trial tests a combination of an anti-PD-1 antibody, interferon, and standard antiviral drugs in 120 adults with chronic hepatitis B. The goal is to boost the immune system to clear the virus and achieve a functional cure, where the virus stays under control without l…

This early-stage study tests whether giving two powerful antibodies along with a therapeutic HIV vaccine can help people with HIV control the virus after they stop their daily antiretroviral therapy. The trial enrolls 48 adults in Thailand who started HIV treatment very soon afte…

This study tests whether specially grown immune cells from an unrelated donor can safely treat viral infections in people with weakened immune systems, such as after a stem cell transplant. About 750 participants will receive these cells and be monitored for side effects like inf…

This study tests whether giving patients donor-derived immune cells (VSTs) on a regular schedule can prevent dangerous viral infections after a stem cell transplant. 180 participants will be randomly assigned to receive VSTs either on a fixed schedule or only when a virus is dete…

This Phase 3 trial tests YCANTH, a topical solution containing cantharidin (a substance from blister beetles), against a placebo for treating common warts. About 300 people aged 2 and older with at least one wart on their body (excluding certain areas) will receive either the act…

This study looks at whether people with HIV who have stopped their medication for at least 12 weeks can safely restart treatment with a single daily pill (B/F/TAF) on the same day they return to care. About 200 adults will take part to see if this quick restart helps lower the vi…

This trial tests a two-part approach for viral warts: applying mild heat at 44°C to the largest wart and using a 3% hydrogen peroxide solution on all warts. The idea is that heating one lesion may rally the immune system to fight the virus elsewhere, while the peroxide works dire…

This phase 3 trial is testing whether the oral drug secutrelvir can help people with COVID-19 recover faster. The study involves about 1,200 nonhospitalized participants aged 12 to 75 who start treatment within 48 hours of symptom onset. Half will receive secutrelvir and half a p…

This early-phase trial is testing an oral drug called VK-2019 in 30 adults with a type of lymphoma (DLBCL) that is linked to the Epstein-Barr virus and has not responded to at least two prior treatments. Participants take the drug daily in 28-day cycles at one of three dose level…

This early-stage trial is testing whether lab-made antibodies that target HIV are safe and how long they stay in the body. About 83 healthy adults without HIV will receive the antibodies by vein or under the skin, alone or in combination. The goal is to find the right dose and ch…

This early-stage study tests a new antibody called BNT351 in 67 adults, both with and without HIV. The goal is to check safety, how long the antibody stays in the blood, and whether it can lower HIV levels in people with the virus. It is a first step toward possibly controlling H…

This trial compares two antiviral drugs, tenofovir alafenamide (TAF) and tenofovir disoproxil fumarate (TDF), in pregnant women with high hepatitis B virus levels. The goal is to see if TAF can prevent passing the virus to the baby as effectively as TDF, but with fewer side effec…

This trial tests whether two experimental capsules, 2LEBV and 2LXFS, can reduce fatigue and other symptoms in people with an Epstein-Barr virus infection. Participants take one capsule daily for six months, either one of the study drugs or a placebo. The study measures changes in…

This trial tests whether a daily oral capsule called 2LVERU can clear common, flat, or plantar warts caused by HPV. Researchers compare the capsule against a placebo in 162 people aged 3 and older over 6 months. The main question is whether warts disappear completely by the end o…

This trial tests whether 2LHERP, an immune regulator available for over 20 years, can reduce the number of cold sore outbreaks in adults who get at least six per year. Participants take one capsule daily for six months, then researchers compare outbreak rates over a year against …

This trial tests whether 2LPAPI, an immune regulator used for over 20 years, can help clear high-risk genital HPV infections faster than a placebo. Researchers will enroll 284 women aged 25 to 45 with a current high-risk HPV diagnosis. Participants receive either 2LPAPI or a plac…

This trial tests whether a daily probiotic pill can improve gut health and lower heart disease risk in 250 people living with HIV who drink heavily. Heavy drinking changes gut bacteria, which may raise inflammation and heart disease risk. Researchers will measure changes in gut b…

This phase III trial compares a new, shorter radiation approach to the standard 7-week chemoradiation for patients with HPV-positive oropharynx cancer. The experimental treatment uses a precise, high-dose radiation boost to the tumor followed by a reduced-dose chemoradiation cour…

This pilot study tests whether methylene blue, a compound with antiviral properties in lab tests, can reduce hepatitis B virus levels in people with chronic infection. Participants take methylene blue capsules for up to 6 months, with the dose possibly increasing if the initial d…

This study investigates whether a mobile app called reSET can help men who have sex with men, are living with HIV, and have a stimulant use disorder reduce their drug use and keep their HIV under control. Participants use the app for 12 weeks, completing modules on topics like ma…

This trial tests whether treating hepatitis C in primary care clinics, with non-specialist doctors, works as well as the standard specialist care in Brazil. It also evaluates the use of rapid tests and self-testing to find more people with the infection. The goal is to see if a s…

This Phase 3 trial tests whether an immunotherapy-based regimen (sintilimab, pegaspargase, and anlotinib) works better than standard chemotherapy before a stem cell transplant in people with newly diagnosed, advanced extranodal NK/T-cell lymphoma. Participants are randomly assign…

This trial tests an experimental drug called STAR0602, which is designed to help the immune system attack cancer cells. It is being studied in people with advanced solid tumors that have not responded to standard treatments. The drug is given alone or combined with chemotherapy, …

This study tests an enhanced Mentor Mother strategy, where trained peer counselors provide tailored support to pregnant and postpartum women living with HIV. The goal is to see if this approach can be successfully implemented and improve health outcomes, such as keeping mothers i…

This trial tests whether two antiviral drugs, favipiravir and ribavirin, can help clear the virus faster in adults hospitalized with Crimean-Congo hemorrhagic fever (CCHF), a severe tick-borne infection. Participants will receive one of the drugs or optimized standard care, and r…

This trial tests whether a 12-week smell training program can help people who lost their sense of smell after COVID-19. Participants will sniff four different scents twice daily, with one group using rose, orange, clove, and eucalyptus, and another using cheese, coffee, strawberr…

This trial tests whether combining community health worker support with a smart pill bottle that tracks medication and sends reminders can improve HIV treatment adherence and viral suppression. The study enrolls 420 adults with HIV in Alabama, Louisiana, and Mississippi who have …

This pilot trial tests whether intravenous zanamivir, a drug already used for flu, can reduce vascular permeability — the dangerous blood vessel leakage that is the main cause of death in dengue fever. About 74 people with dengue and warning signs will receive either zanamivir or…

This study tests whether a daily pill called AP1189 can help hospitalized patients with breathing failure due to viruses like flu, RSV, or COVID-19. About 96 adults will receive either AP1189 or a placebo for 14 days, on top of usual care. The main goal is to see if the drug redu…

This trial investigates whether long-acting injectable antiretroviral drugs can control HIV better than standard oral pills in adults with AIDS-related lymphoma who are also receiving chemotherapy. Participants will receive one of three HIV treatment strategies—oral pills alone, …

This trial tests whether a low-cost, point-of-care urine test can help people with HIV who are not virally suppressed stick to their antiretroviral therapy. Participants provide a urine sample that is immediately tested for the presence of the drug tenofovir. Based on the result,…

This trial tests whether colchicine, an anti-inflammatory drug used for gout, can reduce inflammation in the coronary arteries of people with HIV who have high cardiovascular risk. Participants take either colchicine or a placebo daily for 96 weeks, and changes in artery inflamma…

This study tests an experimental therapy called YH02, a genetically modified virus designed to infect and destroy cancer cells. It is given as an injection directly into tumors in people with advanced solid tumors (such as head and neck cancer, breast cancer, or melanoma) that ha…

This study tests whether a software program called PEPPI makes it easier for pharmacists to offer HIV prevention pills (PEP and PrEP) and for patients to get them. Pharmacists and patients use the software during their normal visits, and researchers compare how well the service w…

This trial tests whether a two-drug combination (darunavir/cobicistat plus lamivudine) works as well as a standard three-drug combination (darunavir/cobicistat plus tenofovir alafenamide/emtricitabine) in people with HIV whose virus is already suppressed. The study involves 78 ad…

This study tests a program to help women living with HIV in Ghana get screened for cervical cancer more easily. The program includes self-sampling kits, patient navigators, and training for healthcare providers. Researchers want to see if these tools increase screening rates and …

This study tests whether community health workers (CHWs) can help Black people with poorly controlled HIV achieve long-term viral suppression. CHWs provide support through weekly phone calls, home visits, and clinic accompaniment for three months. The study enrolls 10 Black adult…

This study tests whether giving patients special donor immune cells (called CD45RA-depleted DLI) can treat viral infections that persist after a stem cell transplant. The trial involves 30 participants who have not improved with standard antiviral drugs. Researchers will measure …

This early-phase study tests whether specially trained immune cells from healthy donors can safely treat viral infections (EBV, CMV, adenovirus, BK virus) in patients who have had a stem cell transplant or certain CAR-T therapy. These infections can be life-threatening when the i…

This study tests a therapeutic vaccine called TherVacB in 81 adults with chronic hepatitis B who are already on antiviral medication. The vaccine is given as a series of shots to boost the immune system and lower hepatitis B virus levels. The main goals are to check safety and se…

This study tests a daily combination pill (TLD) as first-line HIV treatment for 100 people who became infected with HIV despite receiving long-acting cabotegravir PrEP in the past year. Researchers will check if the pill can suppress the virus to undetectable levels after 6 month…

This study tests whether specially grown immune cells (called cytotoxic T lymphocytes) can safely lower BK virus levels in 20 transplant patients with weakened immune systems. Participants have had a stem cell or kidney transplant and show signs of BK virus infection. The goal is…

This study looks at how obesity affects recovery from post-COVID conditions in older Veterans. Researchers will test if a weight loss program with diet and exercise can reduce inflammation and improve physical function and quality of life. The study involves 150 Veterans, some wi…

This study tests four approaches to help adults with drug-resistant tuberculosis and HIV stick to their treatments. Participants receive either standard care, counseling, phone reminders via a special pill bottle, or both counseling and reminders. The goal is to see which method …

This study tests whether a special placental graft, used alongside standard wound care, helps close diabetic foot ulcers that won't heal on their own. About 350 adults with type 1 or 2 diabetes and a foot ulcer between 1 and 15 cm² will be randomly assigned to get the graft plus …

This study tests whether a mobile app with a virtual group support feature can help young Black women (ages 18-30) who misuse alcohol reduce their drinking and risky sexual behavior, and increase their use of PrEP (a daily pill that prevents HIV). About 500 HIV-negative women in …

This early-stage trial is testing whether injecting the local anesthetic lidocaine into HPV-related throat tumors before robotic surgery is safe and might help destroy more cancer cells. About 30 adults with HPV-positive oropharyngeal cancer will receive the injection during a ro…

People living with HIV face a higher risk of oral HPV infection and related throat cancer, but little is known about how the infection behaves in this group. This study asks whether saliva samples collected at home with a mail-delivered kit can detect oral HPV as reliably as samp…

This study tests a community-based screening strategy for tuberculosis (TB) in migrant communities in New York City. A mobile van offers digital chest X-rays with AI interpretation, along with TB symptom checks, blood tests for latent TB, and HIV testing. The goal is to see wheth…

This study is testing a new rapid diagnostic device called TruPlex that can detect HIV, Hepatitis B, and Syphilis from a small blood sample. Researchers will enroll 1000 adults at risk for these infections to see how accurate and easy the test is to use in clinics and point-of-ca…

This study investigates whether urine samples can be used to screen for cervical cancer in women living with HIV. Researchers will compare the accuracy of urine HPV testing with self-collected and provider-collected samples to detect cervical precancer (CIN2 or worse). The goal i…

Researchers in Sweden are analyzing health records from about 130,000 women who had a positive HPV test during cervical screening. The study asks whether the specific HPV genotype, how long the infection lasts, and whether past test results are available can predict the risk of c…

Researchers test whether a rapid, 15-minute molecular flu test used directly in long-term care facilities helps older residents get diagnosed and treated faster than standard lab-based PCR testing. The trial enrolls residents aged 65 and older with symptoms like fever or low oxyg…

This large Australian study is testing whether offering a finger-stick point-of-care test for hepatitis C can increase diagnosis and treatment rates. Adults at risk for hepatitis C will be offered the rapid test at services they already use. Those who test positive for the virus …

This large Australian study is testing whether offering finger-stick point-of-care testing for hepatitis C in community settings—like drug treatment clinics, homeless shelters, and prisons—can increase the number of people diagnosed and linked to treatment. The study will include…

This phase IV trial will enroll 5,500 people with liver cirrhosis or chronic hepatitis B—conditions that raise liver cancer risk. Participants are randomly assigned to either standard ultrasound screening or a new blood test called GALAD, which measures three proteins. The goal i…

This study tests a new technology called Pictura Bio that aims to detect respiratory viruses quickly and cheaply from nose or throat swabs. Researchers will collect samples from 1000 adults and children with suspected viral infections at a UK hospital. The data will be used to tr…

Researchers test whether giving people education materials and free access to screening helps them get checked for colorectal cancer and hepatitis C. The trial enrolls adults ages 45 to 75 who receive care at community health centers and are not up to date on these screenings. Pa…

Researchers are studying whether a digital management platform can help diagnose liver cancer at an earlier stage in people with chronic liver disease. The study enrolls adults aged 18 to 75 with conditions such as chronic hepatitis B. The platform tracks patients and guides stan…

This study aims to build a massive screening cohort of one million people to improve early detection of nasopharyngeal carcinoma, a cancer linked to Epstein-Barr virus (EBV). Participants aged 30 to 69 will provide blood, saliva, and nasal brush samples for EBV antibody and DNA t…

This trial evaluates whether a new self-collection device, Mia by XytoTest, can be used effectively by people to collect their own vaginal samples for cervical cancer screening. The study compares the accuracy of these self-collected samples against clinician-collected samples fo…

This study evaluates whether a blood test measuring polyreactive immunoglobulin G (pIgG) can more accurately diagnose autoimmune hepatitis (AIH) and distinguish it from other liver conditions. Researchers will collect blood samples from 400 adults undergoing liver biopsy for susp…

This study collects blood samples from healthy people, those with benign diseases, and cancer patients to develop a multi-analyte blood test. The test looks for DNA methylation markers that may indicate the presence of various cancers, especially liver cancer. Researchers aim to …

This study aims to create and test a clinical prediction score called FUNGAL-P to help doctors identify fungal pneumonia early in adults who come to the hospital with pneumonia. Researchers will analyze medical records from past patients and then test the score on new patients to…

This study looks at 200 adults with inflammatory bowel disease (IBD) who are hospitalized due to worsening symptoms. Researchers want to see if testing blood or stool for CMV (a common virus) is as accurate as the standard method of testing a tissue sample from the colon. The goa…

This study is testing a new, portable breath test called eBAM-CoV to see if it can detect COVID-19 as accurately as the standard nasal swab test (RT-PCR). The breath test is less invasive and gives immediate results. Researchers will compare the two tests in 250 adults who have s…

This study is testing whether measuring a natural immune marker called IFN-I in nasal swabs can help detect respiratory viral infections in older adults. Current PCR tests only look for a few viruses and can miss others or show old infections. The goal is to improve diagnosis, es…

This study will test if using two heat probes instead of one can better prevent cervical cancer in 300 women with HIV in Zimbabwe. The standard single-probe treatment often fails in these women. The goal is to see if the two-probe method is safe, acceptable, and more effective at…

This study will test whether using two heat probes instead of one to treat cervical precancer works better for women living with HIV. Researchers in Rwanda will enroll 300 women to see if the two-probe approach is safe, acceptable, and more effective at clearing HPV. The goal is …

This study tests a long-acting injectable PrEP (lenacapavir) program designed specifically for Latine gay, bisexual men and transgender women. Researchers want to see if offering the shots at community organizations helps more people stay on HIV prevention compared to standard cl…

This early-stage study tests a vaginal gel containing specially modified bacteria that produce an anti-HIV drug. The goal is to see if it is safe for healthy women and whether it can be cleared with antibiotics. If successful, this could become a long-lasting, woman-controlled HI…

This study tests an investigational nasal spray called INNA-051 to see if it can safely prevent or reduce the severity of viral respiratory infections like colds and flu. It involves 1100 healthy adults aged 18 to 45 who are at higher risk due to their living or work conditions. …

This study tests a six-session program called SER Familia for Latino immigrant families with a parent and a child aged 12-17. The program, led by community health workers, aims to reduce stress from adapting to a new culture and build resilience. The goal is to prevent substance …

This study tests a new way to help young people (ages 13-24) stick with PrEP, a medication that prevents HIV. Participants get PrEP delivered to a community spot (like home or a mobile van) and use a smartphone app for reminders and support. The goal is to see if this combo impro…

Researchers are testing whether a strengths-based patient navigation program helps men start and stay on PrEP, a daily pill that greatly lowers the risk of getting HIV. The trial enrolls 300 men who have sex with men and receive care at community health centers. Half receive the …

This phase 3 trial is testing whether a single dose of CD388, a long-acting antiviral injection, can prevent the flu in 10,000 adults and teens at higher risk of complications. Participants receive either CD388 or a placebo and are monitored for flu-like illness over 24 weeks. Th…

Researchers at Kaiser Permanente Southern California are testing whether reminder messages that highlight COVID-19 vaccine choices increase vaccination among adults at high risk of severe illness. The trial randomly assigns eligible members to receive either a standard reminder o…

Researchers are testing a single dose of an omicron-based COVID-19 vaccine called Nuvaxovid in people aged 65 and older, and in people aged 12 to 64 who have a health condition that raises their risk of severe COVID-19. All participants received a COVID-19 vaccine at least 90 day…

This trial tests whether a daily supplement called Immune X can help prevent common colds in healthy adults who often get upper respiratory infections. Over 16 weeks during winter, participants take either Immune X or a placebo and track any cold symptoms. The study compares how …

This trial tests whether offering a seasonal flu vaccine to heart patients while they are still in the hospital, along with active counseling, increases vaccination rates compared to counseling alone. The study enrolls adults hospitalized for acute coronary syndrome or heart fail…

This study tests a mobile health program called PrEP Choice to help young people ages 13-24 start and stick with HIV prevention pills or shots. It also looks at whether taking the antibiotic doxycycline after sex (DoxyPEP) can prevent other sexually transmitted infections. About …

This trial tests a handheld light device (RD-X19) to see if using it for 5 minutes every other day can prevent upper respiratory infections like COVID-19 and flu. It involves 130 military personnel and their families at a single base. Half will get the real device, half a sham de…

This study tests different strategies to increase HPV vaccination among 9- to 12-year-olds in rural North Central Florida. Clinics will be randomly assigned to offer clinician training alone, training plus parent reminders, or all three including help accessing healthcare. Resear…

This study tests a program called Shamba Maisha that provides farming tools, training, and school gardens to families in Kenya. The goal is to reduce food insecurity and poverty, which are linked to higher STI and HIV risk in adolescent girls. Researchers will follow 900 girls an…

Pregnant women with hepatitis B can pass the virus to their babies during birth. To prevent this, guidelines recommend treating women with high levels of the virus using the drug tenofovir. However, many clinics in low-income countries cannot measure virus levels. This trial comp…

Researchers at Columbia University are studying whether dental clinics can play a bigger role in HIV prevention and care. The trial compares two ways of running a dental practice: a standard model and an enhanced model that adds electronic prompts for HIV testing plus a care navi…

This study tests whether a single dose of nirsevimab, an antibody that targets RSV, can prevent respiratory infections in Aboriginal and Torres Strait Islander children aged 6 months. Around 1,000 children will be randomly assigned to receive either the antibody or standard care.…

This trial tests whether a peer-led program that lets women choose and switch HIV prevention methods can increase consistent use compared to standard care. The program includes peer mentor support, HIV testing, access to PEP, and STI care. It enrolls HIV-negative women at elevate…

This study looks at how well people stick to a new HIV prevention shot called lenacapavir. About 3,000 people in the U.S. who want or need HIV prevention will take part. Researchers will track who stays on the shot and how it works in everyday clinic settings.

Researchers are testing whether a program called the LINK model helps breastfeeding women in Malawi start and stay on HIV prevention medicine (PrEP). The program ties HIV testing and PrEP to infant vaccination visits, screens for HIV risk, involves male partners, and provides pee…

Researchers are studying how well two chikungunya vaccines, IXCHIQ and VIMKUNYA, prevent infection in adults during outbreaks on Réunion Island and in French Guiana. The study includes about 1,505 adults who are eligible for vaccination. By comparing infection rates between vacci…

This study looks at how to keep an HIV prevention program running well in Bahamian schools over several years. Researchers will test different support strategies for teachers, like regular check-ins and mentorship. About 3,705 students and teachers will take part, and the study w…

This study looks at whether the measles, mumps, and rubella (MMR) vaccine is safe and works well in children aged 1 to 17 who have had a heart transplant. About 60 children will receive the standard MMR vaccine and be monitored for side effects and immune response. The goal is to…

Researchers compare three influenza vaccine formulations, standard dose, MF59 adjuvanted, and high dose, in adults aged 65 and older. The trial measures antibody levels before and after vaccination to see whether the formulations produce different immune responses. A younger refe…

This study will test a chatbot designed to increase awareness and use of PrEP, a daily pill that prevents HIV, among Black men who have sex with men (MSM) in the Southern United States. About 145 participants will interact with the chatbot over 90 days, answering questions and re…

This study tests whether letting people choose where they get their follow-up HIV prevention injections (home, community, or clinic) helps them stick with the treatment. 400 HIV-negative adults in Massachusetts will receive the same-day injectable drug lenacapavir and be randomly…

This study explores whether a type of hands-on therapy called osteopathic manipulation can improve how well the seasonal flu vaccine works in people who are more vulnerable to severe flu, including older adults and those with higher body weight. Participants will receive several …

Researchers are testing whether a behavioral program called Episodic Future Thinking can help gay and bisexual men and other sexual minority adults reduce methamphetamine use and risky sexual behavior while sticking with their HIV prevention medication, PrEP. The study enrolls 60…

Researchers are testing a program called Camino that pairs peer navigators with legal services for Latin American immigrants in Washington, DC, and the Oakland area. The program aims to reduce fear of seeking healthcare and connect people to HIV testing, prevention, and treatment…

This study tests two different approaches to prevent cytomegalovirus (CMV) disease in adults who have received a kidney from a CMV-positive donor but are themselves CMV-negative. One group will take daily antiviral medicine for 200 days after transplant, while the other group wil…

This study is testing a new approach called PAC-Man to help prevent HIV from passing from mothers to their babies. About 2,426 mothers and infants in Malawi will take part. The goal is to see if this model helps more babies get tested for HIV early and ensures mothers receive pro…

This study in Uganda tests whether adding lab tests for common sexually transmitted infections (STIs) to standard HIV risk screening helps more women start and stick with PrEP, a daily pill that prevents HIV. About 4,500 HIV-negative women aged 15-39 will be randomly assigned to …

This phase 3 trial tests MK-8527, a once-monthly oral pill, to prevent HIV-1 infection in women. About 4580 HIV-negative women will take either MK-8527 monthly or a daily PrEP pill (Truvada) to see which works better and is safer. The goal is to offer a more convenient prevention…

Researchers are testing whether a three-session couples motivational interviewing program helps male couples reduce illicit drug use and behaviors that raise HIV transmission risk. The trial enrolls 360 male couples where at least one partner is HIV negative and at least one has …

Researchers are testing a clear plastic dome placed over a patient's head during surgery to see if it can stop the spread of airborne germs in hospitals. The trial enrolls 80 adults having elective surgery that requires a breathing tube. Participants are randomly assigned to have…

Women treated for vulvar high-grade squamous intraepithelial lesion (vHSIL), a precancerous condition linked to HPV, often see it return. This trial tests whether giving the Gardasil 9 HPV vaccine alongside standard treatment (surgery, laser, or imiquimod) can lower that recurren…

This study compares the immune response from 2 doses versus the standard 3 doses of the HPV vaccine in women aged 27-45. About 618 participants will be randomly assigned to receive either 2 or 3 doses, and their antibody levels will be checked over 12 months. If 2 doses prove non…

This trial tests a police education program called SHIELD 2.0 in nine counties in Appalachian Kentucky. The program trains local behavioral health workers to teach police how to refer people who use drugs to treatment and social services instead of arresting them for low-level po…

Researchers at Yale University are studying how to expand opioid agonist therapy (OAT) in prisons and probation systems in Tajikistan, Kyrgyzstan, Moldova, and Georgia. OAT uses medicines like methadone or buprenorphine to treat opioid dependence and can lower HIV transmission am…

This study tests a program called TENDAI4PrEP, which uses problem-solving techniques to help pregnant women in Zimbabwe take PrEP, a daily pill that prevents HIV. The program also involves their partners and healthcare providers. Researchers will enroll 132 HIV-negative pregnant …

This early-stage study is testing an experimental antibody called MDX2301 to see if it can help prevent severe COVID-19 in healthy adults and those at higher risk. About 80 participants will receive either the antibody or a placebo, given as an injection or infusion. The main goa…

This study is developing and testing a virtual reality tool to help young people aged 15-30 who have experienced trauma and are at risk for substance use and HIV. The goal is to see if the tool can reduce substance use and risky behaviors. Researchers are recruiting young men who…

This study in Tanzania tests whether giving boys a single dose of the HPV vaccine (Gardasil) can lower HPV infections in the community. Over 10,000 participants in 26 communities will be split: some communities vaccinate only girls (as usual), while others also vaccinate boys age…

This study tests a decision aid that helps women in sexual and reproductive health clinics decide whether to take PrEP, a daily pill that prevents HIV. The tool will be used during counseling visits. Researchers will see if it increases PrEP use and if it's practical for clinics.…

This study tests whether the oral medication venlafaxine, typically used for depression, can prevent postherpetic neuralgia—a persistent nerve pain that often follows a shingles rash. Researchers will enroll 832 adults who have had a shingles rash for less than 30 days and are ex…

This Phase 3 trial tests whether taking HIV prevention pills only around the time of sex can reduce the risk of HIV infection in men who have sex with men. Participants take either TAF/FTC or TDF/FTC, starting with a dose 2 to 24 hours before sex and another dose a day later. The…

This study tests a program in the Dallas County Jail that identifies people at high risk for HIV and offers them testing and education about PrEP, a daily pill that prevents HIV. A patient navigator helps interested individuals connect with PrEP providers after they are released.…

This study is testing a mobile app designed to help young Thai adults (ages 18-29) overcome stigma and start or stick with HIV prevention pills (PrEP). The app uses motivational interviewing and tailored content delivered over four sessions. Researchers will enroll 154 participan…

This study tests a combination of programs to help Black gay, bisexual, and same-gender-loving men in the New York City area get tested for HIV and start taking PrEP, a daily pill that prevents HIV. Participants receive one or more of the following: a 3-session empowerment worksh…

This trial tests a program called the Five Point Initiative, which brings HIV testing, PrEP education and prescriptions, and condoms to everyday spots like barbershops, salons, and corner stores in predominantly Black communities in Miami. Researchers want to see if this approach…

This trial tests three ways to screen adolescents and young adults for HIV in emergency departments: targeted screening based on risk, universal opt-in screening offered to everyone, and universal opt-out screening where testing is done unless declined. The goal is to see which a…

This trial tests whether offering a menu of HIV prevention options — including daily pills and a vaginal ring — helps more young women aged 18–30 start and continue using PrEP. About 1,400 women seeking reproductive health services at clinics in Kenya will be offered either stand…

This trial tests whether offering young people aged 15-30 in rural South Africa a choice of long-acting HIV prevention methods—such as a two-monthly injection or a vaginal ring—alongside standard daily pills and emergency prevention, increases how many start and stay on preventio…

This study tests a mobile health program called WINGS+PrEP for women who have experienced heavy drinking, partner violence, and involvement with the criminal legal system. The program provides information about PrEP (a daily pill that prevents HIV) and offers support sessions. Re…

This study tests a new way to offer HIV prevention pills (PrEP) to people visiting family planning clinics in Kenya. Instead of requiring a separate appointment, HIV counselors will provide PrEP screening and prescriptions right at the family planning visit. The goal is to see if…

This study tests four different approaches to help people who inject drugs remember and stick with their daily HIV prevention pill (PrEP). Researchers will enroll 256 adults who are newly on medication for opioid use disorder and have started PrEP. The goal is to see which method…

This study in Botswana tests whether offering sexually transmitted infection (STI) testing alongside HIV prevention medication (PrEP) helps more pregnant women start and continue using PrEP. About 600 pregnant women without HIV will be split into two groups: one gets standard car…

This study tests whether at-home HPV self-sampling (using urine or a vaginal swab) can help more people get screened for cervical cancer compared to the traditional in-clinic Pap smear. About 735 Latinx individuals aged 30-65 who haven't had a Pap test in at least three years wil…

This pilot study tests whether a peer-driven program can help people who inject drugs in Baltimore reduce their risk of HIV, hepatitis C, and overdose. Researchers will identify high-risk injection settings and train peers to promote safer practices, like carrying naloxone and av…

This study tests an oral drug called vapendavir in 180 adults with COPD who catch a rhinovirus (common cold). The goal is to see if it can reduce the severity and length of breathing symptoms compared to a placebo. Participants are randomly assigned to one of two doses or a place…

Researchers are testing transcranial direct current stimulation (tDCS), a non-invasive technique that applies weak electrical currents to the scalp, in people with persistent COVID who have headaches, migraines, and chronic body pain. The study enrolls about 87 participants aged …

This Phase 3 trial tests two repurposed drugs—upadacitinib and pirfenidone—against a placebo in 348 adults with Long COVID. Participants from six countries will take the drugs for three months to see if they ease symptoms like fatigue, breathing trouble, memory issues, muscle pai…

Women living with HIV face two to four times the risk of heart disease compared with women without HIV, and those in the Southern US are especially affected. Researchers at the University of Alabama at Birmingham are adapting an 8-week stress management program that uses meditati…

This study tests whether virtual reality (VR) can help healthcare workers and COVID-19 patients with posttraumatic stress disorder (PTSD). Participants will use VR headsets during 10 therapy sessions over 5 weeks to safely revisit and overcome traumatic memories. The goal is to s…

This study tests whether doing tai chi/qigong over Zoom twice a week for 12 weeks can reduce depressive symptoms in people aged 50-75 living with HIV. About 326 participants will be randomly assigned to either tai chi or a health education class. Researchers will track mood, hear…

This study is testing a new program called QUIT-AD to help people living with HIV or tuberculosis (TB) in Cape Town, South Africa, quit smoking. The program combines proven methods to support smoking cessation and improve HIV/TB treatment results. Researchers will enroll 86 daily…

This study tests whether a 5-session online program teaching positive thinking skills can help people with HIV who use stimulants. Researchers want to see if it reduces stimulant use and depression by changing brain and immune function. 189 participants will be followed for 3 mon…

This study tests a 10-session peer-led program called Bridge to Belonging, designed to reduce loneliness and depression in older gay and bisexual men living with HIV. The program uses group sessions to build social skills and connect participants with LGBTQ+-affirming community s…

This study tests a new pill containing three ingredients (dipyrone, caffeine, and chlorpheniramine) to see if it works as well as a standard cold medicine for relieving stuffy nose and other cold and flu symptoms. About 620 adults with early cold or flu symptoms will take either …

This study is testing a type of talk therapy for people who have both HIV and PTSD. The therapy helps people understand how trauma affects their emotions and relationships. The goal is to see if this therapy is helpful and acceptable for this group. About 20 adults with HIV and P…

Researchers are investigating the genetic and immune factors that make some children develop multisystem inflammatory syndrome (MIS-C) after a COVID-19 infection. The study enrolls children with MIS-C or Kawasaki disease and their family members. Scientists will collect clinical …

The MunichFlu study investigates whether attending the Munich Oktoberfest, one of the world's largest mass gatherings, is linked to respiratory viral infections. Researchers recruit adults at the festival and follow up one to two weeks later with an online questionnaire about sym…

This study looks at how HIV and substance use disorder (SUD) affect the sense of smell and decision-making. Researchers will test 120 adults aged 18–65, including people with HIV, SUD, both, or neither. Participants will complete smell tests and computer tasks over two visits, an…

This study tracks the health of people with HIV over time to learn more about the infection and related conditions. It is for adults 18 and older in the Washington, D.C., area who have or may have HIV. Participants visit the clinic every few months for check-ups and blood tests, …

This study aims to find the safest and most effective dose of a specific flu virus to give to healthy adults in a controlled setting. About 90 volunteers aged 18 to 55 will be exposed to the virus or a placebo and closely monitored. The goal is to create a reliable model for test…

This study collects blood, bone marrow, and tissue samples from people with HIV, KSHV, or certain cancers to help researchers learn more about these diseases. Participants must be 18 or older and may have HIV, KSHV, or related conditions. No treatment is given; the goal is to gat…

This study collects blood, bone marrow, and tumor samples from 500 adults with cancer or pre-cancerous conditions. Researchers will use these samples to learn more about how cancers behave and why some respond differently to treatments. Participants provide samples over time and …

This study collects blood, urine, bone marrow, and tumor samples from people with hairy cell leukemia and other blood cancers, as well as from healthy volunteers. Researchers will use these samples to study the diseases and develop new treatments called immunotoxins, which use an…

This study looks at HIV that stays hidden in the body even when the virus is under control. Researchers will measure the 'latent HIV reservoir' in 130 Ugandans with HIV and compare it to similar groups in the US. Participants give blood samples and answer health questions. No new…

This study collects tissue and blood samples from adults with HIV, other immune disorders, or cancers thought to be caused by viruses. Researchers will compare genes in cancer tissue to normal tissue to find genetic changes that drive these cancers. The goal is to better understa…

This study collects blood, urine, bone marrow, and tissue samples from over 1,200 adults with lymphoid cancers or precancerous conditions. The goal is to help researchers better understand cancer biology, which may lead to new methods for diagnosing or treating these diseases. No…

This study looks at people who have had unusually severe or long-lasting viral infections, like serious cases of herpes, HPV, or the flu. Researchers want to find out if these people have hidden immune system or genetic problems that make them more vulnerable. Up to 600 participa…

Researchers are testing an experimental long-acting injectable drug called S-892216-LAI in healthy adults. The trial measures how safe and tolerable the drug is, and how the body absorbs and clears it after one or more doses. Participants receive either the drug or a saline place…

This study aims to understand how HIV behaves differently in the blood compared to lymph nodes and bone marrow. Researchers will take samples from 400 people living with HIV and some without HIV to measure virus levels and immune system changes. The goal is to learn more about wh…

This study collects white blood cells from HIV patients through a process called leukapheresis to examine how the immune system responds to early treatment. Researchers aim to enroll 60 adults—30 with early HIV and 30 with chronic HIV—who are not yet on antiretroviral therapy. Pa…

This study collects white blood cells and plasma from 400 people with HIV, including rare 'non-progressors' who control the virus without medication. Researchers will analyze immune responses and genetic markers to understand what makes these individuals special. The goal is to u…

This study follows 950 people with idiopathic CD4+ lymphocytopenia (ICL), a rare condition where low CD4+ white blood cells raise infection risk. Researchers will track participants for up to 10 years, collecting medical history, blood samples, and infection data. The goal is to …

This study follows 150 adults with Kaposi sarcoma (KS) for up to 10 years to learn how the disease behaves, why it comes back, and how it affects the immune system and organs. Participants will have regular check-ups, scans, and biopsies, but no new treatments are being tested. T…

This study follows 1,590 adults who have had COVID-19 to track their symptoms and recovery over three years. Participants complete phone interviews and online surveys every three months. The goal is to describe the range of recovery experiences and identify factors that lead to p…

This study looks at how a long-acting injectable HIV prevention drug (CAB-LA) and hormonal birth control methods (like the shot or implant) affect each other in women. About 105 women who already use CAB-LA or no HIV prevention will join groups based on their contraceptive choice…

This study uses special PET scans to measure brain synapse density in people with HIV who are on effective treatment. Researchers want to understand why some still develop thinking or memory problems. They will compare 70 participants (with and without HIV) over two years using b…

This study looks at whether sharing results from a blood test that shows recent alcohol use can help people with HIV drink less. Researchers will enroll 80 people in Uganda who drink heavily. Half will get standard counseling plus their blood test results, and half will get couns…

This study looks at why some people with HIV who have very low virus levels in their blood still develop thinking and memory problems. Researchers will follow 1,150 participants—including healthy volunteers—for up to 10 years, using brain scans, blood tests, and spinal fluid samp…

This study tests whether short educational videos can help young adults who survived childhood cancer learn about and get the HPV vaccine. The researchers will enroll 55 survivors aged 18-26 who haven't finished the vaccine series. Participants will watch the videos on Facebook a…

This study follows 600 people with GATA2 deficiency, a genetic disorder affecting the immune system and other body systems. Researchers aim to understand the full range of health problems it causes and why it affects people differently. Participants will have yearly check-ups for…

This study aims to learn more about how HIV infects cells and affects the immune system by collecting blood samples from up to 2,419 adults, both with and without HIV. Researchers will analyze these samples to compare genetic and protein differences. The goal is to better underst…

This study looks at how the hepatitis B virus changes over time in people taking antiviral drugs. Researchers will analyze blood samples from 700 adults in Turkey to see if the virus becomes resistant to treatment. The goal is to help doctors choose the best medications for each …

This study looks at whether giving out special syringes with less leftover space (low dead-space) can help reduce the spread of HIV and hepatitis among people who inject drugs. Researchers will talk with participants and track their health in several countries. The goal is to fin…

This study tracks 80 adults with different smell disorders (like total loss, partial loss, or distorted smell) plus healthy volunteers over one year. Researchers use brain scans, smell tests, and questionnaires to see how the brain changes and how smell loss impacts mood and dail…

This study looks at whether getting an mRNA COVID-19 vaccine within three months before starting immunotherapy improves outcomes for people with liver cancer. Researchers will review medical records of 200 patients in Austria to compare response rates, survival, and side effects …

Researchers at the State University of New York at Buffalo are creating a biorepository, a collection of blood and liver tissue samples, from people with and without liver diseases. The goal is to give future scientists high-quality specimens to study how conditions like hepatiti…

This study aims to understand where HIV hides in the body when people stop their daily antiretroviral therapy (ART) for a short time. Fifty adults with HIV will either stay on ART or pause it for up to 90 days. Researchers will use PET/CT scans and take small tissue samples from …

This study looks at why some people with HIV develop Immune Reconstitution Inflammatory Syndrome (IRIS) after starting HIV medications. Researchers will use PET scans and lymph node biopsies to track inflammation and immune recovery in 300 adults. The goal is to better understand…

This study looks at how the COVID-19 pandemic impacted out-of-pocket costs, lost wages, and unemployment for 600 breast cancer patients undergoing surgery. Participants will fill out questionnaires about their financial experiences. The goal is to understand the financial toxicit…

This study uses a 10-minute questionnaire to learn how the COVID-19 pandemic impacted the quality of life, mental health, finances, and social connections of people with melanoma. Researchers will also look at what factors, like social support, helped people cope. About 1,152 par…

This study, run by the National Institute of Allergy and Infectious Diseases, collects blood and stool samples from up to 5,000 people of all ages who have or had COVID-19, as well as those heavily exposed but uninfected. Researchers will analyze immune responses and genetic fact…

Researchers follow 150 healthy children aged 2 to 5 in South Africa through a flu season to see how immune responses in blood and the nose relate to protection against influenza. Nurses collect nasal swabs three times a week and blood samples before, during, and after the season.…

This study tests whether a short 'inoculation' message can help young women in South Africa resist misinformation about lenacapavir, a new twice-yearly injection for HIV prevention. 1,500 women aged 18-29 will be randomly assigned to receive either the inoculation message or unre…

This study follows about 800 people who have recovered from COVID-19 to learn how long the virus can stay in different parts of the body, such as the nose, stool, semen, and breast milk. Researchers will also track how the immune system responds and look for any long-term health …

Researchers across Europe are building a registry of people with hepatitis B to study how the virus behaves and how the immune system responds. The registry aims to collect health information from about 3,000 participants, including those with hepatitis B alone or with other infe…

Rift Valley fever spreads from livestock such as cattle, sheep, goats, and camels to people, and East and Central Africa have seen more than 15 major epidemics in 50 years. Researchers are studying hotspots in Kenya, Uganda, Tanzania, and the Democratic Republic of Congo to measu…

Researchers in Bogota, Colombia, are reviewing the medical records of 370 women treated for breast cancer between 2014 and 2024. They want to see how different molecular subtypes of the disease relate to survival, recurrence, treatment response, and side effects. The study also l…

This study aims to find out how often people with chronic hepatitis B also have hepatitis D, and which types of the virus are most common. Researchers will interview about 2,400 participants and take blood samples to look for links with vaccination history, lifestyle, and other f…

This study is working to create better exercise tests for children with cystic fibrosis, sickle cell disease, or long COVID. Current tests are designed for healthy athletes and may not be safe or useful for these kids. Researchers will track 240 children over 3-4 years, measuring…

Researchers are asking whether people who reach a functional cure for chronic hepatitis B feel less stigma and report better physical and mental health than those who are not cured or who relapse. The study enrolls about 400 adults from an existing hepatitis B cohort in China, so…

This study will compare frailty and other age-related health problems in 600 older adults (60+) in Burkina Faso, Côte d'Ivoire, and Togo — half living with HIV, half without. Researchers will use surveys, medical checks, and interviews to understand how HIV affects aging and what…

This study aims to learn more about liver diseases like hepatitis B, C, and D by observing up to 8,050 participants over time. Participants will have yearly check-ups, blood and urine tests, and liver ultrasounds. Some may be offered experimental treatments if they qualify. The g…

Hepatitis D is the most severe form of viral hepatitis, often leading to liver failure and death. Researchers at Hannover Medical School are running a multicenter cohort study to screen blood and liver samples from 750 adults with hepatitis D for biomarkers linked to disease cont…

Researchers at four French hospitals are measuring how often patients and health care workers catch influenza, COVID-19, or RSV during a hospital stay. Anyone over 18 with fever, cough, or sore throat is offered a nose swab and a questionnaire about health, vaccination, and sympt…

This study reviews medical records from up to 400,000 U.S. Veterans to see how COVID-19 treatments like Paxlovid and remdesivir are used and how well they work. It also looks at RSV and flu patterns. The goal is to improve treatment strategies for respiratory viruses in the VA he…

This study tests whether a two-day employment program can help young Black men who have sex with men stay engaged in HIV care. Researchers will ask 132 participants about their satisfaction and track changes in job-seeking confidence and sexual health visits over 13 months. The g…

Researchers want to know whether mild inflammation, like what happens after a flu shot, affects how healthcare providers make decisions about patients. The trial enrolls emergency medicine and internal medicine providers who receive either a seasonal influenza vaccine or a saline…

This study tests a smartphone app designed to teach emergency room patients about hepatitis C (HCV) and help them connect to follow-up care. Researchers will enroll 308 HCV-positive patients at an urban ER. The app provides personalized information on liver health and care option…

This study is testing whether a quick finger-stick test can help find more people with hepatitis C and get them into treatment. About 60,000 adults at risk for hepatitis C will take the test at clinics, shelters, or prisons. The study itself does not provide treatment, but will c…

This study aims to understand why some people develop Long COVID—persistent symptoms after a COVID-19 infection—by tracking symptoms over time and analyzing saliva samples. Researchers will follow 500 adults aged 18 to 75 who have previously tested positive for SARS-CoV-2, collec…

This study aims to understand how the human body responds to dengue virus infection, including in people who have had dengue before. Healthy volunteers aged 18 to 50 receive a single injection of a weakened dengue virus and are closely monitored for six months. Researchers measur…

This study looks at why oral rotavirus vaccines are less effective in some low-income countries like Zambia. Researchers will collect blood, stool, and tissue samples from 43 adults to study how gut health and the immune system affect vaccine response. The goal is to find biologi…

Researchers in Cambodia are studying blood samples from people hospitalized with dengue, influenza, or sepsis, plus healthy volunteers, to understand why dengue becomes severe in some patients. They collect clinical information and up to four blood samples per participant, then m…

This study follows people infected with HTLV-I virus, some of whom develop a rare spinal cord condition called HAM/TSP. Researchers will track changes in symptoms, immune system markers, and virus levels over time. The goal is to better understand why only a few infected people g…

This study screens up to 5,000 healthy adults aged 18-65 to see if they can join future research on infectious diseases like flu and Zika. Volunteers undergo a 3-5 hour checkup including blood tests, heart exam, and chest X-ray. The goal is to build a pool of eligible participant…

This study compares two sets of strategies to help HIV clinics in Cape Town, South Africa, treat depression and improve medication adherence. Ten clinics will be randomly assigned to receive either basic support or enhanced training and supervision. Researchers will track how man…

This study will test a new 3D imaging device called SkinScan3D to see if it can measure Kaposi Sarcoma skin lesions more accurately and consistently than the current manual method. Researchers will compare the two methods in 300 adults with confirmed Kaposi Sarcoma who are starti…

Researchers are comparing two groups of people living with HIV: those who began antiretroviral therapy during acute infection at least three years ago, and those who have been on treatment for more than 20 years. All participants have suppressed virus levels and uninterrupted tre…

This study tests a program to help people safely stop taking long-acting injectable HIV prevention (PrEP). It will enroll 30 HIV-negative adults who are considering stopping or have stopped their PrEP shots. The program includes personalized coaching and, for some, monthly drug l…

This study follows 500 adults in France who have either a genetic defect or autoantibodies that weaken their type I interferon immune response. Researchers will collect blood samples and health data over 1 to 4 years to track infections, autoimmune diseases, and cancers. The goal…

Researchers want to understand how HIV builds a hidden reservoir in the body when someone starts treatment during the earliest stage of infection. The study follows 70 recently infected people who begin combination antiretroviral therapy right away. Over two years, participants g…

This study investigates whether platelets—tiny blood cells involved in clotting—interact with HIV-infected immune cells in ways that affect the virus's ability to persist despite treatment. Researchers will collect blood samples from 90 adults with HIV who have had undetectable v…

Researchers follow people with HIV who took part in earlier HIV-NAT studies to see how their health changes over many years. The study collects information on treatment history, side effects, other illnesses, and lab results such as viral load and CD4 counts. By tracking a large …

This study aims to find out whether people with long COVID still have inactive remnants of the SARS-CoV-2 virus in their bodies. Researchers will collect tissue samples from 12 adults who have recovered from COVID-19, some with long COVID symptoms and some without. The goal is to…

This study collects blood plasma and white blood cells from healthy volunteers and people with HIV using a procedure called apheresis. The samples are used for laboratory research on infectious diseases and immune function. Up to 3,000 participants aged 18 and older will be enrol…

Researchers are studying people in Réunion and Mayotte who seek care for dengue, chikungunya, or Zika to understand why some cases become severe. The study collects blood and urine samples and asks patients about their quality of life. By comparing clinical, demographic, and envi…

This study aims to learn more about oropharyngeal carcinoma, a type of throat cancer that can be linked to HPV. Researchers will collect blood samples from 1,000 patients before treatment and at six follow-up visits, and also gather tumor tissue when available. The goal is to bet…

This study aims to collect samples and medical information from people of all ages who have or have been exposed to viral infections, including COVID-19 and herpes. Researchers want to understand how viruses affect healthy individuals versus those with weakened immune systems. Pa…

OPERA is a large observational database that collects health records from people treated for chronic conditions such as HIV, liver disease, inflammatory bowel disease, heart disease, rheumatic disease, and neurodegenerative disease. Researchers use the records to study how these …

This study looks at whether people with HIV have chronic pain because their bodies don't make enough natural painkillers (opioid peptides). Researchers will test pain sensitivity in 200 adults (with and without HIV) using heat, touch, and pressure. The goal is to understand the c…

This study follows 400 people with mitochondrial disease and their household members to learn how infections affect them. Researchers will analyze blood samples and health records to find immune patterns linked to severe illness. The goal is to improve care and identify potential…

Researchers are running a worldwide survey to learn how COVID-19 affects children and adults who have primary immune deficiencies, a group of rare inherited conditions that weaken the immune system. Doctors enter health information about their patients who had confirmed or probab…

This study looks at how viruses change the environment around tumors in people with lymphoma, lung cancer, or anal cancer. Researchers will analyze blood and tumor samples from 254 patients to understand why some cancers resist treatment. The goal is to find new ways to make anti…

This study enrolls healthy adults who are already part of a respiratory virus challenge study at the NIH. Participants wear a smartwatch and use a smartphone to track temperature, heart rate, coughs, and other health signals. The goal is to see if these devices can detect subtle …

This observational study enrolls 2,500 people with HIV to build a detailed bank of blood samples and health records. Researchers will use these specimens to investigate how the virus behaves, why some people progress slowly or control the virus without medication, and how antiret…

This study will track 10,000 adults in Hong Kong with respiratory symptoms to measure how often RSV causes illness and how severe it gets. Researchers will collect nose and throat samples and blood tests over several weeks. The goal is to fill knowledge gaps about RSV in adults a…

This study follows 700 people with progressive multifocal leukoencephalopathy (PML), a rare brain infection caused by the JC virus. Researchers will collect blood, spinal fluid, and brain scans over time to understand how the disease progresses. No treatment is given; the goal is…

This study sets up a monitoring program to track pregnancy outcomes and newborn health in HIV-positive and HIV-negative women at clinics in the IeDEA network. Researchers will watch for complications like miscarriage, preterm birth, and congenital abnormalities. The goal is to be…

This study follows 1,500 people with Epstein-Barr virus-positive T/NK-cell lymphoproliferative diseases — rare conditions where the virus drives abnormal immune cell growth. Researchers will collect medical history, treatment details, and blood samples to see how the diseases beh…

This observational study will enroll 190 hospitalized adults with dengue in Bangladesh to see if a 'leaky gut' — where bacteria and toxins escape the intestines into the blood — is linked to severe disease. Researchers will measure gut leakage markers in blood, perform abdominal …

This study aims to develop a predictive model for mortality in critically ill patients who carry multidrug-resistant gram-negative bacteria (MDR-GNB). Researchers will follow about 1,500 adults in intensive care units (ICUs) who are colonized with these bacteria, tracking their i…

This study will track which respiratory viruses—like flu, COVID-19, and RSV—are circulating in French primary care clinics each winter. Up to 25,000 patients with cold or flu symptoms will provide a saliva or nose swab sample. The goal is to monitor virus activity and help guide …

This study follows 250 people newly diagnosed with HIV and 161 healthy volunteers over five years to see who develops metabolic fatty liver disease (MASLD). Researchers use annual blood tests, ultrasounds, and FibroScans to measure liver fat and stiffness. The goal is to uncover …

This study examines whether concentrating ovarian cancer surgery in specialized centers and changes in treatment during the COVID-19 pandemic affect how long patients live without their cancer returning. Researchers will follow about 200 women diagnosed with epithelial ovarian ca…

This study follows 800 adults who have recovered from COVID-19 to understand how their immune systems respond over the long term. By collecting blood samples and health data, researchers hope to uncover why some people develop lingering symptoms, known as Long COVID. The goal is …

This study aims to find undiagnosed cases of advanced liver fibrosis and viral hepatitis B and C in the general population of Seine Saint Denis, France. Using a combination of rapid diagnostic tests and a portable liver stiffness scanner (FibroScan), researchers will screen 600 a…

This large observational study follows 13,000 UK adults to understand who gets COVID-19, how the disease progresses, and its long-term effects on physical and mental health. Researchers track risk factors, symptoms, and outcomes like hospitalization. The data may also serve as a …

This study looks at how natural hormones and hormone therapy (like birth control or gender-affirming hormones) affect the way the HIV prevention drug cabotegravir works in the body. Researchers will measure drug levels in blood, tissues, and fluids in 32 HIV-negative adults. The …

This study looks at the immune system's response in infants aged 6 months or younger who are hospitalized with RSV bronchiolitis. Researchers will collect nasal swabs and blood samples to measure immune markers like interferons and cytokines. The goal is to understand why some ba…

This study will analyze samples from 130 ICU patients with ARDS (a severe lung injury) to better understand why the condition varies so much between people. Researchers will examine lung fluid, blood, and CT scans to identify distinct biological subtypes. The goal is not to test …

This study looks at skin problems that appear during a COVID-19 infection, with a special focus on chilblains (painful red or purple bumps on fingers or toes). Researchers want to understand why these skin changes happen—whether from the virus itself, tiny blood clots, or inflamm…

This study is following 1,000 people in the Alpes-Maritimes region of France to see how many were infected with the coronavirus during the deconfinement period. Researchers are using blood tests to measure immune responses and will also look at how air pollution might affect the …

This study in South-East Austria looks at past lab results to find people with hepatitis B, C, or D who may not know they have it. Researchers will invite these individuals to a clinic to discuss treatment options. The goal is to connect them to care and track how many get cured,…

This study follows 300 infants to understand how catching RSV very early (before 4 months old) versus later (after 6-9 months) affects their immune system and long-term health. Researchers will measure antibody responses and track asthma-like symptoms. The goal is to learn why ea…

This study aims to find out how common anti-annexin A2 antibodies are in people hospitalized with COVID-19 and whether these antibodies are linked to lung damage or blood clots. Researchers will test blood samples from 300 adult patients at one hospital. The goal is to see if the…

This study is looking at 100 adult patients who have had an organ or stem cell transplant and later developed a CMV infection that is resistant or hard to treat with standard antiviral drugs. Researchers want to find out how common this problem is and what factors make it more li…

This study looks at why some people had severe COVID-19 while others had mild symptoms. Researchers will compare the immune system's early response (called interferon) in 134 adults who were sick during the first wave. They also want to see if gut bacteria play a role. The goal i…

This observational study will follow 2,500 people aged 14–55 who are at risk for HIV across multiple countries. Researchers will track how many new HIV and other sexually transmitted infections occur over time. The goal is to gather data that could help design future studies aime…

This study looks at whether being more forgiving and holding less resentment can improve quality of life for people living with HIV. Researchers will follow 206 participants at a French hospital, measuring their tendency to forgive and their well-being. The goal is to see if forg…

This study in Malawi aims to understand why COVID-19 was much less severe there than in Europe and the Americas. Researchers will follow 1500 people, including those infected and their household contacts, to see how factors like prior infections, nutrition, and immune responses a…

This study in Zambia will follow about 11,800 people with advanced HIV who are starting or restarting antiretroviral therapy (ART). Researchers want to learn who these patients are, what challenges they face, and how well they do in the first six months of treatment. The goal is …

This study is creating a large collection of blood samples and health data from 3500 people with hepatitis B, including those who have already cleared the virus. Researchers will use these samples to look for viral RNA patterns that could signal a functional cure. No new treatmen…

This study is creating a large database of health information from 743 adults with HIV/AIDS across Brazil. Researchers will look at how common chronic diseases like heart disease, kidney disease, and cancer are in this group. The goal is to gather data to help improve health poli…

This study is looking at 1,000 liver transplant recipients to see if testing their blood, urine, and tissue samples can detect early signs of chronic kidney disease, acute rejection, or hepatitis C. The goal is to find simple biomarkers that could lead to earlier treatment and fe…

This study collects anonymous symptom descriptions from 1,000 adults through an online platform. An AI tool then searches medical literature to see if it can find reliable biological signals in the free-text descriptions. The goal is to test how accurate and consistent the AI's f…

This study will follow 10,000 people in Australia who have chronic hepatitis B to see how well they are connected to care and treatment. Researchers will collect information from clinics across the country to understand who is getting treated and what their health needs are. No n…