Viral infectious disease

This trial tests a one-time gene therapy for WHIM syndrome, a rare inherited immune disorder that causes severe infections. Doctors collect a person's own blood stem cells, use base editing to correct the faulty CXCR4 gene, and return the edited cells to the body. The goal is to …

Researchers are observing patients diagnosed with smallpox who receive the antiviral drug tecovirimat (TPOXX). The study tracks how many patients survive at day 44 and monitors safety. Because smallpox is rare, the study relies on cases that occur naturally or in outbreaks, and i…

This early-stage trial is testing a new vaccine called HydroVax-001B WNV to see if it is safe and triggers an immune response against West Nile virus, a mosquito-borne disease. About 30 healthy adults aged 18 to 49 will receive either the vaccine or a placebo. The study will comp…

This phase 2 trial tests V540A, an experimental vaccine designed to protect against 9 HPV types already covered by Gardasil 9, plus additional unique types. About 525 healthy women aged 16-26 will receive either V540A or Gardasil 9 to compare safety and immune response. The goal …

This phase 1 trial is testing whether an experimental HIV vaccine can safely stimulate the immune system to produce antibodies against HIV in people who are already living with the virus and taking antiretroviral therapy. The study involves 30 adults from the Swiss HIV Cohort Stu…

Researchers are testing a booster shot called PTX-COVID19-B in adults who have already been vaccinated against COVID-19. The trial compares the immune response from PTX-COVID19-B to that from Comirnaty, a widely used mRNA vaccine. Participants receive one 40 microgram dose and gi…

This study tests an experimental vaccine against Marburg virus, a rare but severe disease. About 200 healthy adults will receive either the vaccine or a placebo to check for side effects and measure immune responses. The goal is to see if the vaccine is safe and prompts the body …

This study tests a new vaccine called GBP511, designed to protect against several sarbecoviruses (a group that includes SARS-CoV-2). About 368 healthy adults will receive one or two doses at different strengths, with or without an adjuvant to boost immune response. The goal is to…

Researchers are studying blood from HIV-positive adults to identify parts of the virus that trigger protective T cells, which fight HIV, while avoiding parts that help the virus infect CD4+ T cells. By comparing these viral components across human and animal AIDS viruses, they ho…

This study in Tanzania tests whether one dose of the HPV vaccine works as well as the standard two or three doses in girls aged 9-14. Cervical cancer is a major killer in East Africa, and reducing the number of shots could cut costs and make vaccination more accessible. The trial…

This trial tests a new vaccine called LBVD, which combines protection against six diseases: diphtheria, tetanus, whooping cough, hepatitis B, polio, and Hib. The study enrolls healthy infants around 6 to 8 weeks old who receive three doses at 6, 10, and 14 weeks of age. Researche…

This trial tests an investigational yellow fever vaccine called vYF against the standard YF-VAX vaccine in healthy adults aged 18 to 60. The goal is to see if vYF produces a similar immune response, measured by antibody levels 28 days after a single dose. Researchers will also co…

This study tests an experimental vaccine called AZD6489 in adults aged 60 and older. The vaccine is designed to protect against respiratory syncytial virus (RSV), a common virus that can cause serious lung infections in older people. Participants receive a single injection of eit…

This study tests two experimental vaccines, AZD4117 and AZD5315, designed to protect against certain strains of avian influenza (bird flu), specifically H5N1 and H7N9. Around 405 healthy adults will receive either a vaccine or a placebo to see if the vaccines are safe and trigger…

This early-stage trial tests three experimental mRNA vaccines designed to train the immune system to fight HIV. The study involves 96 healthy adults without HIV in South Africa. Researchers will check for side effects and measure whether the vaccines trigger specific immune cells…

This study was designed to check how long the Ebola vaccine (ERVEBO) protects people who might be exposed at work, like lab workers or healthcare staff. It also planned to see if a booster shot could extend that protection. However, the trial was withdrawn before enrolling any pa…

This massive study is testing whether the Abrysvo RSV vaccine can prevent hospitalizations due to RSV in adults aged 18 and older. Half of the 690,000 participants will receive the vaccine, while the other half will not. Researchers will track how many in each group end up hospit…

This study looks at whether a second, inactivated hepatitis A vaccine can safely boost protection in healthy Thai children and teens who did not develop enough antibodies after a single dose of a live-attenuated hepatitis A vaccine. About 36 participants who took part in an earli…

This early-stage study tests a new vaccine called VXB-251 in 240 healthy adults aged 60-83. The vaccine is designed to protect against three viruses that can cause serious lung infections: RSV, hMPV, and PIV3. Researchers will check if the vaccine is safe and how well it triggers…

This study checks how well the ABRYSVO® vaccine protects infants from severe RSV when given to pregnant women. Researchers will look at hospital records from Argentina and Uruguay over several RSV seasons. The goal is to see if the vaccine reduces hospitalizations and severe illn…

This large Phase 3 study is testing an mRNA vaccine called mRNA-1403 to prevent norovirus, a common cause of severe stomach upset and diarrhea. About 38,000 adults aged 18 and older will receive either the vaccine or a placebo. The goal is to see if the vaccine can safely prevent…

This study looks at how getting the flu vaccine year after year changes your body's immune response. Researchers are testing two types of flu vaccines—a nasal spray (FluMist) and a shot (Flublok)—in 600 adults aged 22 to 50 in Hong Kong. They will measure antibodies and immune ce…

This study tests a single dose of an updated Novavax COVID-19 vaccine designed to target the JN.1 variant. About 6,500 healthy adults aged 50 to under 65 who are not at high risk for severe COVID will receive either the vaccine or a placebo. Researchers will track how well the va…

This phase 3 trial is testing a non-live, adjuvanted RSV vaccine (Arexvy) in 100 adults who have received a lung or stem cell transplant. The goal is to see if the vaccine is safe and helps their immune system fight RSV, a common virus that can be dangerous for them. Participants…

This Phase 3 study is testing the MVA-BN mpox vaccine in 344 infants and children aged 4 to 24 months in the Democratic Republic of the Congo, a region heavily affected by mpox. Researchers are comparing a standard dose to a half-dose to see if the lower dose is still effective a…

This early-stage trial tests a new vaccine called AVX70371, designed to treat chronic hepatitis B by training the immune system to fight the virus. It involves 16 healthy adults aged 18 to 40 to check for safety and immune responses. The study is not yet testing if it works again…

This large study enrolled over 15,000 U.S. military members to compare three types of licensed flu vaccines: egg-based, recombinant, and cell-culture-based. Participants were randomly assigned to one of the three vaccines over four flu seasons. The main goal is to see which vacci…

This large study tests whether an updated Moderna COVID-19 vaccine can prevent severe COVID-19 in adults aged 50 to 64 who have no health conditions that raise their risk. About 285,000 participants will be randomly assigned to get the vaccine or not. The main goal is to see if t…

This study looks at how well the ABRYSVO vaccine, given to pregnant women, protects their babies from RSV, a leading cause of severe lung infections in infants. Researchers will analyze medical records of infants up to 6 months old in western Pennsylvania over several RSV seasons…

This Phase 3 trial is testing the safety and immune response of the MVA-BN mpox vaccine in 359 pregnant and postpartum women in the Democratic Republic of the Congo. Some women receive the vaccine during pregnancy, others right after giving birth, and a small group gets it as an …

This Phase 3 study tests whether a single dose of Pfizer's RSV vaccine (RSVpreF) can prevent lower respiratory tract illness caused by RSV in adults aged 60 and older. Over 38,800 participants across multiple countries received either the vaccine or a placebo. The study also look…

This Phase 2 trial tests a new vaccine called ChAdOx1 RVF against Rift Valley fever in 240 healthy adults in Kenya. Participants receive either one or two doses of the vaccine or a rabies vaccine as a control. Researchers will check if the vaccine triggers a strong immune respons…

This study tests whether extra COVID-19 vaccine doses are safe and work well for people with weakened immune systems, such as those with HIV, organ transplants, or blood cancers. Around 960 participants will receive different booster schedules to see which one boosts their protec…

This phase II trial tests whether bevacizumab, a drug that blocks blood vessel growth, can lengthen the time between surgeries for adults with recurrent respiratory papillomatosis (RRP), a rare condition causing wart-like growths in the airways. Participants receive 11 doses of t…

This early-stage trial tests a therapeutic vaccine called ISA104 in 24 people with chronic hepatitis B who are already on antiviral drugs. The goal is to see if the vaccine is safe and can boost the immune system to better fight the virus. Participants will receive either ISA104 …

This phase 2 trial tests whether Gardasil-9, a vaccine normally used to prevent HPV infection, can treat warts that have not responded to standard treatments. Researchers inject the vaccine directly into the wart, rather than into a muscle, and compare its effect against a placeb…

This phase 2 trial tests whether giving the HPV vaccine (Gardasil 9) to adults before a kidney transplant helps their immune system fight HPV after transplant, when they must take drugs that weaken immunity. About 51 participants will receive the vaccine before surgery, and resea…

This early-stage trial tests a DNA vaccine called INO-8000, given with an immune booster, to see if it can help people with chronic hepatitis C fight the virus. The study involves 33 participants and focuses on safety and finding the best dose. The vaccine is delivered through in…

This study tests a stem cell transplant to control peripheral T-cell lymphoma in people whose cancer has not responded to standard treatments. Participants receive a donor's stem cells after chemotherapy or antibody therapy to prepare their body. The goal is to see if this approa…

This Phase 2 study tests an experimental drug called ALG-000184 against a standard hepatitis B medication (tenofovir) in 200 adults with chronic hepatitis B. Participants take one pill daily for 48 weeks. The main goal is to see if the new drug can lower hepatitis B virus levels …

This study follows 75 adults who have had a stem cell or solid organ transplant and are being treated with maribavir for cytomegalovirus (CMV) infection. Researchers will track how well the drug clears the virus, how long treatment lasts, and any side effects. The goal is to see …

This Phase 2 trial tests whether adding TQ-A3334 tablets to standard nucleoside analog drugs can better control chronic hepatitis B. About 116 adults with the infection will receive either the combination or a placebo plus standard drugs. The main goal is to see if the combinatio…

This study in Botswana tests whether giving three powerful antibodies by infusion can help children who started HIV treatment early keep the virus suppressed without taking daily antiretroviral pills. About 41 children aged 2 to 12 will receive the antibodies while stopping their…

This study tests whether a blood test for Epstein-Barr virus (EBV) DNA can help doctors choose the best chemotherapy after standard radiation for nasopharyngeal cancer. About 685 patients will first receive standard chemoradiation. Then, based on whether EBV DNA is still detectab…

This study tests whether a community mentoring program called Generation Xchange (GenX) can help older African-American adults fight off respiratory viruses. 160 participants over age 50 will be randomly assigned to the program or a control group. Researchers will measure immune …

This study tests whether delivering healthy food boxes, remote health monitoring, and one-on-one coaching can help low-income Black adults with type 2 diabetes better control their blood sugar. The trial enrolls 304 participants in the Deep South and tracks changes in HbA1c level…

This study offers kidney transplant patients with antibody-mediated rejection (AMR) the chance to receive felzartamab for up to 4 more years. AMR occurs when the immune system attacks the new kidney. The main goal is to check long-term safety and monitor kidney health through bio…

This study tests whether infusions of cord blood stem cells can help people with moderate to critical COVID-19 pneumonia. The trial includes 65 adults with COVID-19-related acute respiratory distress syndrome (ARDS). Researchers will compare stem cell treatment plus standard care…

This Phase 3 trial tests whether hydroxychloroquine, given alone or with azithromycin, can improve outcomes for adults hospitalized with moderate to severe COVID-19 lung disease. Participants receive hydroxychloroquine for 10 days, and some also get azithromycin for 5 days. Resea…

This study compares a high-dose flu vaccine to the standard dose in 270 lung transplant recipients who are 1 to 35 months post-transplant. The goal is to see if the high-dose vaccine triggers a stronger immune response and provides better protection against influenza. Participant…

This study tests whether a smoking cessation medication (varenicline) combined with tools to help people stick with treatment can improve quit rates for smokers living with HIV. About 340 participants will be followed for 6 months to see if they stop smoking, confirmed by breath …

This study tests whether personalized ventilator settings can reduce lung injury in adults with severe respiratory failure who are on ECMO (a heart-lung machine). Researchers will use esophageal manometry or electrical impedance tomography to tailor the ventilator's positive pres…

This trial tests whether applying local heat to the cervix can clear high-risk HPV and treat early cervical precancerous lesions (CIN I and II). Women aged 18-65 with persistent high-risk HPV will receive heat therapy at 44°C for 30 minutes on several days. The study measures whe…

This study tests whether a special T-cell vaccine, combined with an immune-boosting drug (vesatolimod) and two powerful antibodies, can help people with HIV control the virus without needing daily antiretroviral therapy. The trial involves 36 adults who started HIV treatment soon…

This early study tests whether giving gene therapy after standard chemotherapy is safe for people with AIDS-related non-Hodgkin lymphoma. The gene therapy adds anti-HIV genes to the patient's own blood stem cells, aiming to help the body fight HIV. Only 3 participants were enroll…

This study tests whether providing medically tailored meals along with intensive lifestyle coaching can help adults with HIV and type 2 diabetes or prediabetes better manage their weight and blood sugar. About 200 participants will be randomly assigned to receive either the meals…

This trial tests whether mepolizumab, an antibody that blocks a key immune signal, can produce lasting improvements in people with severe nasal polyps. Participants receive twelve monthly injections and are followed for six months after stopping to see if benefits persist. Resear…

This study tests whether a telemedicine program that combines brief counseling with cognitive-behavioral therapy can help people with HIV reduce unhealthy alcohol use and improve their overall health. About 308 participants in Alabama will receive either the combined program or b…

This study tests a combination of three drugs—bintrafusp alfa, PDS01ADC, and entinostat—in adults with advanced HPV-related cancers (like cervical, anal, or throat cancer) or certain colon cancers that haven't responded to standard treatment. The goal is to find a safe dose and s…

This trial tests whether a structured improvement strategy, called SAIA, can help syringe service programs in the U.S. deliver more HIV testing and referrals to prevention and treatment services. The study will compare programs using SAIA with those continuing their usual practic…

This study tests whether two experimental antibodies (MGD014 and MGD020) are safe in people with HIV who are on standard antiretroviral therapy. Some participants also receive a drug called Vorinostat to help expose hidden HIV, or temporarily stop their regular HIV meds. The goal…

This trial tests a smart pillbox that sends text alerts when a person misses their HIV medication. The alerts go to the user, a support person, and a case manager to help them get back on track. The study involves African American men who have sex with men and have trouble sticki…

This study tests whether two lab-made antibodies, given as a single infusion, can help control HIV in adults who are starting standard antiretroviral therapy (ART). The trial will see if these antibodies reduce the hidden virus in blood cells and delay the virus from rebounding i…

This study tests whether people with HIV who are already virally suppressed on complex treatment can safely switch to a simpler two-drug combination of bictegravir and lenacapavir. About 689 participants will be randomly assigned to either switch to the new drugs or stay on their…

This study tests whether person-centered counseling and community outreach can help people with HIV who have fallen out of care get back on track. Researchers will work with 3,000 patients in Zambia who are late for appointments or missing viral load tests. The goal is to see if …

This early-stage study tests whether immune cells grown from a donor's blood can safely fight or prevent seven different viruses in people who have had a bone marrow transplant. About 32 participants will receive these cells either as a preventive measure or as a treatment for ac…

This phase 2 trial tests whether a 12-week combination of four drugs (bedaquiline, clofazimine, pyrazinamide, and delamanid) works better than the standard 26-week treatment for drug-susceptible tuberculosis. About 94 adults with TB will be randomly assigned to either the short r…

This study tests a simplified, accelerated HIV care model called ACCELERATE. It combines rapid telehealth appointments, a pre-approved HIV medication, and a free 30-day starter supply to help people with HIV who have fallen out of care get back on track. The goal is to see if thi…

This trial tests whether implanting a thin disc of donor cornea tissue — called a stromal lenticule — can improve corneal transparency and vision in people with herpetic stromal keratitis, a herpes infection that scars the cornea. The lenticule contains stem cells and other livin…

This study tests a new drug, VH3810109, given with another HIV medicine (cabotegravir) in adults whose HIV is already well-controlled. The goal is to see if this combination can keep the virus suppressed as well as standard treatments. About 185 participants will receive either t…

This trial tests whether combining an oral immunomodulator with a vaginal ovule can help the body clear persistent high-risk human papillomavirus (HPV) infection, a key cause of cervical cancer. About 76 women with low-grade cervical changes will receive either the dual immunothe…

This study tests a long-acting injectable HIV medication (CAB LA + RPV LA) in people whose virus is still detectable despite taking daily oral pills. About 332 participants will either get the shots or continue standard oral therapy. The goal is to see if the injections can bette…

This study tests two drug combinations in 300 people with HIV who have gained weight or have high cholesterol. One part compares dapagliflozin (a diabetes drug) to a placebo for weight loss. The other compares a two-drug statin combo to a single statin for lowering cholesterol. T…

This study tests whether starting antiretroviral therapy right away during the first weeks of HIV infection can protect key immune cells from being destroyed. Adults with very early HIV (infected within the last 90 days) receive a combination of dolutegravir and emtricitabine/ten…

This study tests a program called Ssinga Nze that combines training for clinic staff with one-on-one support for people living with or at risk of HIV. The goal is to reduce HIV-related stigma and help sex workers in Uganda stick with their HIV prevention or treatment. Researchers…

This study tests a new drug called bepirovirsen in 153 people who have both HIV and chronic hepatitis B and are already on HIV treatment. The goal is to see if bepirovirsen can clear the hepatitis B virus from the body better than a placebo. Participants will continue their regul…

This study tests whether giving two experimental drugs in sequence can achieve a functional cure for chronic hepatitis B. Participants are adults with chronic HBV who are already on standard antiviral therapy. They will receive either one of two doses of daplusiran/tomligisiran f…

This early-stage study tests whether adding an experimental drug (VH3810109) with or without another drug (fostemsavir) to standard HIV therapy can reduce the hidden viral reservoir in people living with HIV. About 107 adults, either new to treatment or already on stable therapy,…

This study tests whether dasatinib, a drug currently used for leukemia, can safely control HIV in people who were infected within the past 3 to 12 months and have not yet taken standard HIV medications. Participants receive either dasatinib or a placebo for 16 weeks. The goal is …

This study tests whether a simpler two-drug pill (dolutegravir/lamivudine) works as well as a standard three-drug pill (bictegravir/emtricitabine/tenofovir alafenamide) for adults with HIV who have never been treated. About 473 participants will take one of the two pills daily fo…

This study tests a new approach for people receiving a stem cell transplant from a partially matched family donor. The donor's immune cells (T cells) are modified in the lab to include a 'suicide gene' that can be activated by a drug if the cells attack the patient's body, causin…

This study tests if gabapentin, a medication for nerve pain, can help people with HIV who drink heavily achieve undetectable viral loads. About 220 participants will receive either gabapentin or a placebo for 3 months, along with counseling. The goal is to see if the drug improve…

This trial tests whether specially modified T cells from a partially matched donor can help patients recover their immune system faster after a stem cell transplant. The T cells are engineered with a 'suicide gene' that allows doctors to destroy them if they cause graft-versus-ho…

This study tests whether specially grown immune cells can fight three common viruses—adenovirus, CMV, and EBV—in people whose immune systems are weak due to a stem cell or organ transplant, or an inherited immune disorder. The cells are made from a donor's blood and trained to re…

This study tests whether personalized text messages can motivate people living with HIV in Vietnam to quit smoking. Participants receive motivational texts over six months and are encouraged to use a free government quitline that provides nicotine patches. The goal is to see if t…

This study tests a counseling program for people living with HIV who also face mental health challenges or substance use. The program uses one-on-one sessions to help with medication adherence, stress, and other life issues. Researchers will see if participants complete the progr…

This study tests a virus called AdAPT-001 that is injected directly into tumors to kill cancer cells. It is for adults with advanced solid tumors that have not responded to standard treatments. The trial will check if the virus is safe and whether it works better when combined wi…

This study looks at two antiviral drugs, TAF and TDF, in pregnant women with chronic hepatitis B. It aims to see which one better controls the virus and keeps the mother's liver healthy without harming the baby. About 816 women in early or middle pregnancy will take one of the dr…

This study was designed to see if corticosteroids (prednisone or hydrocortisone) could help COVID-19 patients who need extra oxygen. It planned to enroll adults with confirmed COVID-19 and pneumonia, using CT scans to identify those likely to benefit. However, the trial was withd…

This study tests whether switching to a new 2-drug combination pill (bictegravir/lenacapavir) is as safe and effective as staying on the standard 3-drug pill (Biktarvy) for people with HIV-1 whose virus is already suppressed. About 577 participants who have been on Biktarvy for a…

This study tests a 4-session behavioral program to reduce alcohol use in 450 people with TB and HIV in India. Unhealthy drinking can worsen TB and HIV outcomes. The program is added to usual care, and researchers will check if it lowers alcohol use and improves health. The goal i…

This early-stage trial tests a biologic treatment for 20 people with moderate COVID-19 who also have controlled cancer. The treatment aims to help the immune system recognize and kill the virus. Researchers will check if the virus clears and if the immune response improves.

This study is for adult women living with HIV who have experienced intimate partner violence. It tests a program that combines trauma-informed counseling with a safety planning app to improve mental health, HIV management, and safety. The goal is to see if this approach can reduc…

This study tests whether giving a guaranteed income of $6,750—either as a lump sum or monthly payments—helps people with HIV who have recently been in jail stay connected to care and keep the virus under control. Thirty-three participants will be randomly assigned to receive the …

This phase 3 trial tests whether a once-weekly pill (islatravir/lenacapavir) can keep HIV under control as well as daily standard care. About 600 people with HIV who already have undetectable virus levels will switch to the weekly pill or stay on their current daily regimen. The …

This study looks at two drug combinations to treat BK virus infection in kidney transplant recipients. BK virus can cause the new kidney to fail. The trial compares everolimus with a lower dose of tacrolimus versus a lower dose of tacrolimus plus leflunomide in 50 adults whose vi…

This phase 2 trial tests a nasal spray called Optate in 24 adults with mild COVID-19. The spray aims to lower virus levels in the nose and improve symptoms like congestion. Participants receive either Optate or a placebo, and researchers measure changes in virus levels and sympto…

This study tests whether the antiviral drug tecovirimat can help people with monkeypox heal faster. About 480 adults and teens (14+) with active lesions will receive either tecovirimat or a placebo, alongside standard care. The main goal is to see how quickly skin and mouth sores…

This study tests whether the antiviral drug entecavir can prevent hepatitis B from reactivating in people with a type of blood cancer (CD20-positive B-cell lymphoma) who have had hepatitis B in the past but cleared it. The 84 participants will take entecavir before starting their…

This study tests a mobile app called HealthMPowerment (HMP) designed to help young gay and bisexual men (ages 15-24) either start HIV prevention (PrEP) or stay on HIV treatment. About 1500 participants will get the app right away or after a delay. Researchers will see if the app …

This early-phase trial tests a biological product mix designed to train the immune system to recognize and clear multiple strains of HPV. The study involves 20 participants with cervical HPV infection who do not have symptoms or signs of cancer. The treatment is given through the…

This study was designed to test whether an inhaled drug called ZYESAMI could help people with severe COVID-19 avoid getting worse and needing a ventilator. It was a Phase 3 trial, meaning it was in the final stage of testing. However, the study was withdrawn before any participan…

This study was designed to test whether the drug itolizumab could help hospitalized COVID-19 patients recover faster. The trial was planned for 18 years and older with confirmed COVID-19 pneumonia and low oxygen levels. However, the study was withdrawn before enrolling any partic…

This study tests whether a combination of weekly video-counseling sessions and a mobile app can help young adults (18-29) living with HIV achieve viral suppression. Participants who are not virally suppressed will be randomly assigned to receive the intervention or standard care.…

This study tests whether offering small prizes (phone credit) can encourage young people aged 15-30 with HIV to take their medication every day. 560 participants in Uganda are split into groups with different reward rules. The goal is to see if these low-cost incentives improve a…

This study tests whether pomalidomide, a drug currently used for multiple myeloma, can help control HIV when people temporarily stop their standard antiretroviral therapy (ART). Thirty-two adults with well-controlled HIV will receive either pomalidomide or a placebo alongside low…

This early-stage trial tests whether a new drug called PDI204, an antibody that targets the COVID-19 virus, is safe and tolerable in healthy adults. 32 participants will receive a single dose of PDI204 or a placebo and be monitored for side effects and how the drug behaves in the…

This early-phase trial tests a new approach for ovarian cancer that has stopped responding to platinum chemotherapy. It combines TILT-123, a virus engineered to kill cancer cells and boost immune activity, with the immunotherapy drug pembrolizumab, and in some cases also with a c…

This study looks at whether a trained friend, family member, or partner can safely give long-acting HIV injections at home. It involves 1,000 people with HIV who are already on the injectable treatment and have the virus under control. The goal is to make it easier for people to …

This study tests whether people with HIV who are already well-controlled on a daily pill (B/F/TAF) can safely switch to a once-weekly tablet (islatravir/lenacapavir). About 600 participants will take either the weekly pill or continue their daily regimen for 48 weeks. The goal is…

This study follows 500 people with HIV across Europe who are taking the medication doravirine. Researchers want to see how well the drug controls the virus over 12 months, how many people stop taking it, and if the virus becomes resistant. The study includes people new to treatme…

This study tests two antiviral medications, TAF and TDF, in 200 pregnant women with chronic hepatitis B. The goal is to see which drug better prevents passing the virus to the baby and causes fewer birth defects or side effects. Participants take the drug daily during pregnancy a…

This study monitors 45 people with chronic hepatitis B who already received the experimental gene editing treatment PBGENE-HBV in an earlier trial. Researchers will watch for any delayed side effects over time. No new treatment is given; the goal is to understand the long-term sa…

This early-phase study tests a new treatment for advanced osteosarcoma and neuroblastoma that has not responded to standard therapy. Researchers take a patient's own immune cells (T cells), add a gene to help them recognize and attack cancer cells, and combine them with a chicken…

This trial tests a device called Seraph 100, a blood filter used to treat severe COVID-19. The goal is to see if filtering the blood can reduce organ failure in patients with COVID-19 who are in the intensive care unit. The study enrolled 42 adults with confirmed COVID-19 and org…

This study tests whether peer mentors—people with similar experiences—can help individuals recently released from jail or prison get connected to Hepatitis C care and stay in treatment. About 80 participants will either receive a peer mentor or standard referral. The goal is to s…

This study aimed to see if a special blood filter (Seraph 100) could reduce BK virus levels in kidney transplant patients with high viral loads. It planned to enroll adults with a BK virus level of 10,000 IU/mL or higher who already had dialysis access. However, the trial was wit…

This trial tests a video-based counseling program for adolescents living with HIV in Malawi. About 1,800 teens and their treatment supporters will either receive the video intervention or standard care. The goal is to see if the videos help teens take their medication regularly a…

This study tests whether a new once-weekly oral combination of two experimental drugs, lepetegravir and lenacapavir pacfosacil, can keep HIV under control as well as the daily pill Biktarvy. About 675 adults with already-suppressed HIV will take either the weekly combo or continu…

This study tests a program called PASEO that helps teenagers with HIV in Lima, Peru, successfully move from pediatric to adult HIV care. The program includes a helper who checks in monthly, peer support groups, education sessions, and mental health support. About 160 teens will t…

This study tests a 12-week course of the drug Sofosbuvir/Velpatasvir in about 100 pregnant women with chronic hepatitis C. The goal is to see if the treatment can cure the virus and whether it affects the timing of delivery. Mothers are followed for 12 weeks after treatment, and …

This phase 2 trial tests whether a single, low dose of radiation to the chest can reduce lung inflammation in hospitalized COVID-19 pneumonia patients. Researchers compare two radiation doses (35 cGy and 100 cGy) to standard care. The goal is to see if this treatment lowers the n…

This early-phase study tests whether taking prebiotic fiber and probiotics can improve fatty liver disease in people with HIV. Researchers believe changes in gut bacteria may contribute to liver problems. The trial involves 63 participants and measures liver fat and gut health ma…

This pilot study tests whether giving the smoking-cessation drug varenicline to people with HIV who also have alcohol use disorder is practical and safe. Thirty participants will receive the medication along with support from a pharmacist and psychiatrist. The goal is to see if t…

This study tests a program where trained peers use motivational interviewing to encourage people who use drugs to check their drugs for dangerous substances and adopt safer use behaviors. The goal is to reduce fatal and non-fatal overdoses, as well as HIV and hepatitis C infectio…

This study tested a treatment called CG0070, a virus designed to attack cancer cells, in people with high-grade non-muscle invasive bladder cancer. Participants had already tried standard therapy (BCG) without success and chose not to have their bladder removed. The goal was to s…

This early-stage study tests the safety of dostarlimab, an immunotherapy drug, in people with HIV-related Kaposi sarcoma that hasn't responded to standard HIV treatment. About 15-20 participants will receive the drug alongside their HIV therapy. The goal is to see if the drug is …

This study tests a new treatment for cancers linked to the Epstein-Barr virus (EBV), such as Hodgkin lymphoma and nasopharyngeal carcinoma. The treatment uses immune cells from healthy donors that are specially trained to attack EBV-infected cells. These cells are stored in a ban…

This study tests a special treatment for red blood cells that aims to kill the Zika virus, making transfusions safer. About 692 people who need blood transfusions will receive either treated or standard blood. The goal is to see if the treated blood works just as well and is safe…

This study tests a 'data-to-suppression' approach to help people with HIV who are not virally suppressed. It uses reports to guide support services for about 1,500 low-income individuals in New York City. The goal is to improve viral suppression rates and reduce health disparitie…

This study tests several experimental treatments at once in critically ill COVID-19 patients who need high-flow oxygen or a ventilator. The goal is to quickly find which treatments can reduce deaths and shorten the time patients need breathing support. About 1,500 adults in the h…

This study tests a new medicine called lenacapavir in people with HIV whose current drugs are no longer working due to multidrug resistance. The drug is given as a pill and an injection, and is added to their failing regimen for 14 days before switching to an optimized background…

This study tests whether virtual or in-person support helps teens with HIV stay in care and keep the virus under control. About 570 teens aged 15-19 in South Africa will receive either standard care or extra support to prepare for moving to adult clinics. The goal is to see which…

This study looks at whether giving long-acting HIV injections at home is as practical and acceptable as giving them in the hospital. About 120 adults with well-controlled HIV will receive the shots either at home or in the hospital. Researchers will measure how easy and appropria…

This early-phase trial tests an HPV vaccine series in healthy relatives of patients with advanced HPV-related cancer. The goal is to generate HPV-specific white blood cells that can be collected and used in a bone marrow transplant or donor lymphocyte infusion for the patient. Th…

This study tests whether a two-drug combination (dolutegravir and lamivudine) is as safe and effective as the standard three-drug HIV treatment for children aged 2 to 15. About 386 children who already have undetectable HIV levels will take either the two-drug pill or their usual…

This Canadian study tests whether the antiviral drug tecovirimat (TPOXX) helps non-hospitalized adults with monkeypox recover faster. About 120 participants will receive either the drug or a placebo. The main goal is to see how quickly skin lesions heal and whether running such a…

This study aimed to test a new solid tablet combining two HIV drugs (darunavir and ritonavir) for children aged 3 and older weighing 10-25 kg. The goal was to find the right dose and check safety and acceptability. However, the trial was withdrawn before any participants were enr…

This study looks at whether giving HIV treatment to babies within the first week of life can reduce the amount of virus hiding in their bodies. Researchers want to see if this early start helps the immune system fight HIV better, possibly allowing children to stop medication for …

This study looks at two different approaches to prevent cytomegalovirus (CMV) infection in people who have received a kidney transplant from a living donor. The participants are at intermediate risk for CMV and are given standard anti-rejection medication. The goal is to see whic…

This study looks at 260 chronic hepatitis B patients who stopped their antiviral medication and then had a flare-up. They are switched to a drug called tenofovir alafenamide (TAF) to see if it can control the virus and improve liver health. The goal is to measure how many patient…

This study tests whether giving inhaled anesthetics (isoflurane or sevoflurane) to sedate COVID-19 patients on ventilators can improve survival and reduce time on the breathing machine compared to standard IV sedatives. About 800 adults in the ICU with lung failure will be random…

This study tests a smartphone app and a tablet dashboard for community health workers to support people with both tuberculosis (TB) and HIV in South Africa. The app helps patients stay on track with their medications, while the dashboard alerts health workers if someone needs ext…

This study tests whether doxycycline, an antibiotic, can slow the worsening of emphysema in people living with HIV. About 133 current or former smokers with HIV will take doxycycline for 72 weeks. Researchers will measure lung function, walking ability, and check for antibiotic r…

This study planned to test a combination of two drugs, pembrolizumab and lenvatinib, in people with a rare skin cancer called classic Kaposi sarcoma that had not responded to prior chemotherapy. The goal was to see if the combination could shrink tumors better than standard chemo…

This study tests whether a drug called N-803 (IL-15) can train the immune system to control HIV without daily antiretroviral therapy. Twenty people with HIV on stable treatment will receive the drug or a placebo, then temporarily stop their HIV meds to see if the virus stays unde…

This Phase 2 trial tests whether a new injection called BW-20507, combined with pegylated interferon alfa, can help people with chronic hepatitis B stop their daily antiviral medication (NUCs). About 209 adults with hepatitis B will receive the combination for 48 weeks. The main …

This was a planned phase 2 study to test a combination of two long-acting drugs, cabotegravir and lenacapavir, for people with HIV who have tried many treatments. The goal was to see if switching to these injections every two months could keep the virus under control. However, th…

This study tests whether combining urban gardening with peer nutritional counseling can improve HIV care outcomes for people who also face food insecurity. About 433 adults with HIV in the Dominican Republic who have trouble getting enough food will take part. The goal is to see …

This study tests a program to help people living with HIV in Botswana stop smoking. It combines counseling with a medication called varenicline. The goal is to see if this approach helps them quit and improves their health. The study involves 750 participants who are daily smoker…

This study tests whether giving higher doses of a TB drug (rifampicin) plus an extra antibiotic (levofloxacin) for 14 days, with or without steroids, can help more people survive. It includes 732 adults with HIV who are hospitalized for TB that has spread beyond the lungs. The go…

This Phase 2 trial tests a new drug called hepalatide (L47) in 90 adults with chronic hepatitis D, a serious liver infection. Participants receive either a low or high dose of hepalatide daily for 48 weeks, or delayed treatment. The main goal is to see if the drug can lower the v…

This study looks at whether a combination of four herbs (Phyllanthus urinaria, Adenosma glutinosum, Eclipta prostrata, and ascorbic acid) plus the drug tenofovir can help control hepatitis B over the long term. The treatment aims to strengthen the immune system and reduce virus l…

This study is testing two tuberculosis (TB) prevention treatments in pregnant women who also have HIV. The goal is to see if these treatments are safe and how they interact with the HIV medication dolutegravir. About 252 pregnant women will take either a daily TB drug for one mon…

This study tests whether a once-weekly combination of two drugs (rifapentine and isoniazid) can safely prevent tuberculosis in children and teens with HIV who are already taking the antiretroviral dolutegravir. About 92 participants aged 3 months to 17 years will receive the TB p…

This study is testing a combination of two antiviral drugs, sofosbuvir and daclatasvir, in children aged 6 and older with active hepatitis C in Cambodia. The goal is to see if the treatment can clear the virus from the blood 12 weeks after finishing the 12-week course. The trial …

This study tests if inhaling a protein called interferon beta 1b can help hospitalized COVID-19 patients who need oxygen. The goal is to see if the treatment reduces the amount of oxygen they need over 15 days. The study includes 74 adults with confirmed COVID-19 who are on oxyge…

This study tests a drug called Tenofovir Amibufenamide (TMF) in 200 adults with chronic hepatitis B who have normal liver enzyme levels (ALT). The goal is to see if TMF can lower the virus to undetectable levels and possibly clear the hepatitis B surface antigen. Participants are…

This study tests whether a single dose of the monoclonal antibody AER002 can safely improve physical health in adults with Long COVID. The idea is that lingering virus or spike protein may cause ongoing symptoms, and the antibody might clear it. 36 participants will receive eithe…

This early-phase trial tests a combination of HIV GP160 protein and BCG vaccine (used for tuberculosis) in 20 HIV-positive people without AIDS symptoms. The goal is to see if the mix can activate the immune system to recognize and kill HIV. It is a small proof-of-concept study, n…

This early-stage trial tests a single dose of M032, a genetically modified herpes simplex virus that produces IL-12, in 29 patients with recurrent or progressive brain tumors (glioblastoma, anaplastic astrocytoma, or gliosarcoma). The virus is infused directly into the tumor area…

This study tests whether papaya leaf extract syrup can raise low platelet counts in children aged 2–12 with dengue fever. One hundred children will receive either standard care alone or standard care plus the extract for three days. Researchers will compare platelet changes and w…

This study tests whether taking omega-3 supplements (fish oil) for 8 weeks during pregnancy can help HIV-positive women on antiretroviral therapy have healthier babies. Researchers will measure birth weight, length of pregnancy, and inflammation levels. 92 pregnant women will be …

This study aimed to see if a personalized RNA vaccine, a powerful antibody (10-1074), and a drug called romidepsin could help people with HIV stop their daily antiretroviral pills while keeping the virus under control. The trial planned to enroll 56 adults with well-controlled HI…

This trial tests whether a single infusion of stem cells from donated umbilical cords can help people with acute respiratory distress syndrome (ARDS), a severe lung condition often seen in intensive care. The study first finds a safe dose, then randomly gives either stem cells or…

This study aims to eliminate hepatitis C among people who use drugs in Paris, Marseille, Lyon, and Fort-de-France. Researchers will screen participants, provide immediate treatment, and use a peer-referral system to reach more people. The goal is to see if this community-based ap…

This study looks at how well the Shingrix vaccine protects against shingles in people over 50 living with HIV, compared to healthy adults of the same age and gender. About 225 participants will receive two doses of the vaccine and be monitored for one year. The goal is to see if …

Researchers compare two ways to collect vaginal samples for high-risk HPV testing: swabs stored dry and swabs stored in liquid. The study enrolls 1,306 women aged 30 and older who have abnormal cervical screening results. The goal is to see if dry swabs detect HPV as accurately a…

Researchers are studying whether people can accurately use a rapid COVID-19 antibody test at home. Participants in New York City who have recovered from or suspect they had COVID-19 take the finger-prick test themselves and photograph the result for a doctor to check. The study a…

Researchers are testing whether artificial intelligence can combine ultrasound images with routine health data to track changes in a person's physiology over time. The study enrolls adults with heart, lung, kidney, or blood vessel conditions, as well as healthy volunteers. The go…

This study looks at which tests work best to find early signs of HPV-related cancer in the cervix or anus of people living with HIV. About 1,586 participants from Mexico and Puerto Rico will be tested using different methods, including HPV tests and cell samples. The goal is to c…

This study compares different HPV tests to find the best way to screen for cervical cancer in women living with HIV in Latin America. Over 1,000 participants will provide cervical, vaginal, and urine samples, plus undergo colposcopy and biopsies. The goal is to identify which tes…

This study tests whether women can collect their own vaginal samples for HPV testing as accurately as a doctor's sample. It involves 750 women referred for colposcopy or cervical procedures. The goal is to see if self-collection is a reliable alternative to traditional pelvic exa…

This study planned to compare a rapid antigen detection test against the standard PCR test for diagnosing COVID-19 in people who were close contacts of infected patients but had no symptoms. The goal was to see if the quick, inexpensive antigen test could reliably identify contag…

This study is testing whether adding a blood test called the GAAD score to regular ultrasound scans can improve the detection of liver cancer in people at high risk, such as those with cirrhosis or chronic hepatitis. About 2,100 participants will get both tests every six months f…

This study is looking for better ways to find HPV-related throat and anal cancers early in men. Researchers are testing whether a blood test or a simple mouth rinse can spot signs of the virus that might lead to cancer. They plan to follow 1,500 men over time to see if these test…

This study is checking if a new, low-cost HPV test called ScreenFire works as well as the standard test for finding cervical cancer risk. About 9,100 women aged 30-59 will use a self-collection method. The goal is to see if the test is accurate, reduces follow-up visits, and is c…

This study looks at whether offering HPV self-sampling kits by mail, pharmacy, or clinic can make cervical cancer screening easier. One thousand women aged 25-65 in Quebec will try different ways to get and return the kit. The goal is to see which method works best and if women f…

This study tests a fast point-of-care PCR test (Spotfire) that quickly identifies whether a respiratory infection is caused by a virus. The goal is to give ER doctors results faster so they can avoid prescribing antibiotics when they won't help. The trial enrolls 200 adults with …

This large phase 3 trial is testing whether a new oral pill called MK-8527, taken just once a month, can prevent HIV infection as well as the standard daily PrEP pill. About 4,390 people at risk of HIV will be randomly assigned to receive either the monthly pill or daily Truvada …

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 are tracking HPV-16 and HPV-18 neutralizing antibodies in females who received a bivalent HPV vaccine in an earlier study. Participants were 9 to 26 years old when first vaccinated and received either two or three doses. No vaccine is given in this extension. Blood sa…

Researchers are testing whether repeat couples HIV testing and counseling helps male couples at high risk of HIV. The study enrolls couples who already took part in an earlier testing program. Couples are assigned by chance to either retest together or to individual HIV testing. …

This study tests a new program where trained village health workers use tablet-based tools to provide HIV prevention services, including PrEP and emergency PEP, to people at high risk in rural Lesotho. About 380 participants will be enrolled to see if this approach increases mont…

Researchers are testing whether a 4-week daily course of isoniazid and rifapentine can prevent active tuberculosis as well as the standard 12-week weekly course in people with HIV who have latent TB infection. The trial enrolls about 2,500 adults in a high TB burden country. Both…

This study tests whether peer-led support—either one-on-one, in a group, or both—can help transgender men who have sex with men start and continue taking PrEP, a daily pill that prevents HIV. Participants are randomly assigned to receive standard HIV prevention information, a tai…

This study tests whether adding a communication skills video and a substance use module to standard couples HIV testing can help male couples reduce drug use and risky sex. About 484 male couples are randomly assigned to receive standard testing alone or with one or both extra mo…

This trial tests whether proactive follow-up by community health workers can increase HPV vaccination coverage among adolescent girls in Mali and Côte d'Ivoire. Researchers compare girls who receive home visits and digital reminders to those getting standard outreach. The goal is…

This study tests whether the nine-valent HPV vaccine can prevent long-lasting oral HPV infections in men who have HIV. About 700 men will receive either the vaccine or a placebo. The goal is to see if the vaccine reduces new persistent infections with HPV types linked to throat c…

This study looks at how to best help HIV clinics in Vietnam offer a short alcohol counseling program to patients who drink heavily. The goal is to reduce risky drinking and lower the chance of spreading HIV. Over 3,200 people living with HIV and clinic staff are taking part to se…

This study tests whether offering lottery-based rewards for saving money can help Kenyan men reduce behaviors that raise their risk for HIV and other STIs. About 1,500 men aged 18-39 who drink alcohol and have paid for sex in the past will be split into two groups. One group gets…

This study tests the safety of palivizumab, a drug given as monthly injections, in infants under 24 months who are at high risk for severe RSV disease. About 138 children born prematurely or with certain lung or heart conditions will receive up to 5 doses. Researchers will monito…

This trial tests different vaccination schedules for Japanese encephalitis in healthy children starting at 8 months old. Researchers compare how well each schedule triggers and maintains protective antibodies through age 6, including the effect of booster doses. The study also mo…

This phase 3 study tests a 9-valent HPV vaccine (V503) in 6,000 Chinese women aged 20-45 to see if it prevents persistent infection and cervical disease from five additional HPV types compared to the current 4-valent vaccine. Participants receive either the new vaccine or Gardasi…

This study follows women who previously received either one or two doses of the Gardasil9 HPV vaccine to see how long protection against HPV infection lasts. Researchers will check for persistent infections with HPV types linked to cancer. The goal is to understand if fewer doses…

This early-stage study tests a vaginal ring designed to slowly release two HIV prevention drugs (tenofovir disoproxil fumarate and emtricitabine) over 28 days. About 15 healthy women will wear the ring for a month and a placebo ring for another month to compare safety, drug level…

This phase 3 trial tests whether giving antiviral medication to pregnant women with hepatitis B and their newborns can prevent the virus from passing to the baby. The study involves 450 women and their infants in Africa. The goal is to find a safe and effective way to reduce moth…

This study tests the safety of giving repeated annual doses of an experimental drug called CD388 to healthy adults. About 400 people who already tolerated one dose without serious side effects will receive two more doses over two years. Researchers will monitor for side effects a…

This study tests a new long-acting injection called lenacapavir, given every 6 months, to prevent HIV in cisgender women in the US. About 253 women will receive either the injection or daily pills (Truvada) to compare how well the drug works in the body, its safety, and how accep…

This study tests a 24-week program called CoMPASS that uses rewards (contingency management) and extra support to help people who inject drugs take PrEP consistently for HIV prevention. About 526 participants with opioid use disorder will be enrolled. Those who don't stick with P…

This study looks at a new way to prevent HIV in people who inject drugs. It tests a shot given under the skin every 6 months (lenacapavir) and compares it to daily pills. The goal is to see how well the shot works in the body and if it is safe. About 181 people in the US are taki…

This trial tests whether giving the smallpox vaccine to people who have been exposed to mpox can prevent them from getting sick or reduce the severity of the disease. It involves about 3,000 household members of people with confirmed mpox, who receive either the vaccine or a cont…

This study looks at how to keep a youth-friendly HIV self-testing program called 4YBY running in Nigeria. It will involve over 1,200 young people aged 14-24 who are at risk for HIV. Researchers will compare standard program delivery with an enhanced version that includes extra su…

This study tested two ways to prevent HIV in over 5,000 adolescent girls and young women at risk. One group received a long-acting shot every six months, while others took daily pills. The goal was to see how well each method works to keep participants HIV-free.

This study looks at whether long-acting HIV prevention shots (CAB-LA) are safe and work well for breastfeeding mothers after childbirth. About 500 new mothers in Botswana will get the shots and be followed for 24 months along with their babies. The goal is to see if this method c…

This study is checking the long-term safety and effectiveness of a long-acting injectable drug called cabotegravir (CAB LA) for preventing HIV. It includes about 3,500 people who already received CAB LA in earlier HIV prevention studies. Participants will continue getting the sho…

This study tests whether a brief alcohol counseling program helps high-risk adults who drink heavily stay on HIV prevention medication (PrEP or PEP). Researchers will enroll 400 people at drinking venues in Kenya and Uganda, giving half the counseling and half standard care. They…

This study tests whether providing HIV prevention (PrEP) and hepatitis C treatment together at one location works better than sending patients to separate clinics. About 446 people who inject drugs will be randomly assigned to either on-site integrated care or off-site referrals …

This study tests a new option for preventing HIV: a shot given under the skin every 6 months, called lenacapavir. It compares how well people stick with the shot versus taking a daily pill (Truvada). About 268 people at higher risk for HIV will take part. The goal is to see if th…

This study is testing a web-based platform called Jom-TestPlus for men who have sex with men in Malaysia. The platform offers HIV self-testing, real-time online counseling, and help connecting to prevention or treatment services. Researchers want to see if this approach increases…

This study tests a new drug called VYD2311, a monoclonal antibody that blocks the COVID-19 virus from entering cells. About 1,770 adults and teens aged 12 and older receive either VYD2311 or a placebo as a monthly shot for 3 months. The goal is to see if it safely prevents COVID-…

This study is testing a mobile-friendly app called DASH that provides information and guidance about PrEP (a daily pill that prevents HIV) to people who have used an HIV self-test kit. The app helps users explore their values and make informed decisions about starting PrEP, with …

This study looks at better ways to find and prevent tuberculosis (TB) in people living with HIV. Researchers will test a new screening method and offer patients a choice of TB preventive medicines with extra support like text reminders. The goal is to improve TB detection and hel…

This study is testing whether the MVA-BN mpox vaccine is safe and triggers a strong immune response in 600 adults living with HIV in Kinshasa, DRC. Participants receive two vaccine doses 28 days apart and are grouped by their CD4 count. The goal is to see if the vaccine works wel…

This study tests a program to help HIV-positive adults get the HPV vaccine, which can prevent HPV-related cancers. The program gives clinics and staff tools to encourage vaccination. Researchers will track how many people start and finish the vaccine series over two years.

This study tests whether offering HIV prevention medication (PrEP) through telehealth visits at local health departments helps more people who inject drugs start and stay on PrEP compared to standard education and referrals. Eighty participants in rural Appalachia will be randoml…

This study tests the Shingrix vaccine in over 2,000 adults with autoimmune rheumatic diseases like rheumatoid arthritis and lupus, who are at higher risk for shingles. Researchers will compare vaccinated patients to unvaccinated ones to see if the vaccine is safe and triggers a s…

This study tests whether a short educational session plus weekly text reminders can increase HPV vaccination rates among children of Mexican-American parents. About 672 parents will be randomly assigned to receive either education alone or education plus text reminders. The goal …

This study tests whether giving a long-acting HIV prevention shot (lenacapavir) in community pharmacies is practical and acceptable. Seventy-five HIV-negative adults will receive the injection either twice a year or every three months, and researchers will track how many stay on …

This study tests whether a mobile app called LifeSkills can lower the number of new HIV infections among young transgender women aged 16-29 in the U.S. About 5,100 participants will use either the app or standard care, and their HIV status will be checked over time. The goal is t…

This study compares two low-burden strategies to increase HIV PrEP use among emergency department patients seeking care for sexual health issues. One strategy involves follow-up outreach after the visit, while the other offers a tele-sexual health visit during the ER stay. The go…

This study tests whether trained peer educators can help more college students learn about and start taking PrEP, a daily pill that prevents HIV. About 123 students aged 18-26 from four HBCUs will take part. The goal is to see if this approach increases PrEP awareness and use ove…

This study tests a community-driven campaign to increase HPV prevention among mother-daughter pairs in Nigeria. About 1,838 participants will take part in events and surveys. The goal is to get more girls vaccinated against HPV and more mothers to self-test for the virus, which c…

This study is creating a women-centered HIV prevention program for young women aged 18-35 in Ghana. The program uses WhatsApp and community workshops to provide information on HIV self-testing and PrEP, aiming to reduce stigma and increase prevention uptake. Researchers will test…

This study tests whether collecting sexual health information electronically during routine gynecologic visits can increase the use of PrEP, a medication that prevents HIV. About 1,170 women aged 15-65 who are not living with HIV will participate. The goal is to see if this appro…

This study tests whether a single dose of the HPV vaccine (Gardasil 9) can prevent persistent HPV infection in women living with HIV who have already been vaccinated. About 778 women will receive either the HPV vaccine or a meningitis vaccine (placebo) and be monitored for safety…

This study tested whether an educational program for parents and healthcare providers could increase HPV vaccination rates among girls aged 9 to 17 in Ohio Appalachia. Over 600 parents and providers took part. The goal was to see if teaching about the vaccine leads to more girls …

This study aims to see if mobile phone messages can help teens in Uganda prevent HIV and address related issues like mental health and alcohol use. Researchers will adapt an existing text and voice system to include HIV prevention info and mental health screening. About 200 adole…

This study is testing whether a single dose of the HPV vaccine (Gardasil 9) can protect young women from HPV infection. Over 150,000 women in Sweden are participating, receiving one vaccine dose along with routine screening. The goal is to see if one dose is effective enough to h…

This phase 3 trial tests lenacapavir, a long-acting drug given as a shot every six months, to prevent HIV infection. Over 3,200 participants at risk for HIV received either lenacapavir or daily pills. The goal is to see if the shot is as effective as daily PrEP, offering a more c…

This study tests whether a brief alcohol intervention (a few counseling sessions) helps people who are starting or restarting PrEP (HIV prevention pills) to drink less and stick with their PrEP routine. About 562 participants in Hanoi will be randomly assigned to receive the inte…

This study tests whether taking two TB prevention drugs daily for one month works as well as taking them weekly for three months. It includes 1,000 people with HIV or those living with someone recently diagnosed with TB. The goal is to see which schedule more people complete and …

This study tests ways to increase HPV vaccination among 11-17 year olds at 8 community health centers in Florida. It provides training for doctors and nurses on how to recommend the vaccine, and gives parents easy-to-understand information before visits. The goal is to see if the…

This study compares two methods to prevent RSV, a common virus that can cause serious breathing problems in babies. One method is a vaccine given to pregnant women, which passes protection to the baby before birth. The other is an antibody shot given directly to the newborn. The …

This phase 3 trial tests whether taking Paxlovid (nirmatrelvir/ritonavir) during acute COVID-19 can prevent long COVID. About 2,000 adults aged 18-64 with a recent positive test and symptoms will receive either Paxlovid or a placebo for 5 days. Researchers will track long COVID s…

This study checks how well the RSV vaccine (ABRYSVO) works when given to pregnant women to protect their babies from severe RSV illness. Researchers will look at health records of infants hospitalized with breathing problems in Australia. They want to see if vaccinated moms' babi…

This study tests a program to help pregnant and breastfeeding women in South Africa take a daily pill called PrEP that prevents HIV. The program includes extra counseling and community delivery of the pills for those who struggle to take them regularly. The goal is to see if this…

This study tests a mobile app called Combine to help gay, bisexual, and other men who have sex with men in rural southern US get tested for HIV and STIs and start taking PrEP (a daily pill that prevents HIV). About 473 men will use the app and be placed into one of four groups: s…

This early-stage study tests a group healthcare model called Centering PrEP+ (C-PrEP+) to help sex workers take and stick with PrEP, a daily pill that prevents HIV. Instead of one-on-one visits, small groups meet with providers for health checks and interactive learning. The stud…

This large study of nearly 28,000 girls aged 12-16 tests whether a single dose of HPV vaccine works as well as the standard two doses to prevent persistent infection with the virus types that cause most cervical cancers. If one dose is enough, it could lower costs and simplify va…

This study adapts Project YES+, a behavioral program, to improve mental health and reduce HIV-related stigma for adolescent and young men who have sex with men living with HIV in Vietnam. Eighty participants aged 16-24 will receive individual and group sessions with peer mentors.…

This study tests a group counseling program called Healing HEARTS to help people with conditions like obesity, skin disease, cancer, HIV, diabetes, or chronic pain deal with internalized stigma. Participants will either join the counseling program or a peer support group. The goa…

Researchers are testing whether a virtual walking program can reduce chronic pain and psychological distress in people with severe mobility impairment, mostly from spinal cord injuries or polio. Participants wear a head-mounted display and use a controller to guide an avatar thro…

Researchers are testing whether semaglutide, a drug used for diabetes and weight loss, is safe and tolerable in adults with cocaine use disorder. The trial includes 40 people who use cocaine often, some of whom also have HIV. Participants receive weekly injections of semaglutide …

Researchers are adapting a mobile health program that pairs the PositiveLinks app with video counseling from a community health worker. The study enrolls 60 people in Florida who have HIV and mild to moderate anxiety or depression. Participants receive either the enhanced counsel…

This study is testing whether hyperbaric oxygen therapy (breathing pure oxygen in a pressurized chamber) can improve symptoms like fatigue and brain fog in people with post-COVID syndrome. About 40 adults with long COVID will receive the treatment. The main goal is to see if a la…

This study tests a drug called bezisterim (NE3107) in 203 adults with long COVID who struggle with brain fog and fatigue. Participants take either the drug or a placebo twice daily for 84 days, and researchers measure changes in thinking, memory, and energy levels. The goal is to…

This pilot study is testing whether chiropractic care can improve quality of life and reduce inflammation in adults with HIV. Researchers will compare a group receiving weekly chiropractic adjustments to a group receiving no treatment. The study aims to see if a larger trial is p…

This trial tests a counseling program called Mpata Yathu ('Our Space') for adolescent girls and young women in Zambia who have experienced gender-based violence and may be living with or at risk for HIV. The program uses problem-solving therapy delivered by trained lay counselors…

This study tests whether a structured cognitive training program, called Goal Management Training, can improve attention and executive function in adults who have persistent cognitive difficulties after a COVID-19 infection. Participants aged 18 to 65 with confirmed COVID-19 and …

This study is for primary caregivers in the Bronx who feel stressed. It tests a 12-week program called CARE, plus a phone app (Valera) that gives parenting tips and connects families to a care manager. The goal is to see if these tools can lower stress and help parents support th…

This Phase 2 trial tests whether the drug plitidepsin can improve overall health in 90 adults with moderate-to-severe long COVID symptoms. Participants receive either plitidepsin or a placebo intravenously over four 3-day cycles, with a 90-day follow-up. The study is double-blind…

This study tests a program called PRISM that teaches teens with HIV how to manage stress, set goals, and build resilience. It involves three one-on-one sessions with a nurse. The goal is to see if the program is feasible and acceptable, and whether it reduces psychological distre…

This study compares two types of talk therapy—Acceptance and Commitment Therapy (ACT) and Cognitive Behavioral Therapy (CBT)—for HIV/AIDS patients experiencing psychological distress. 72 adults on antiretroviral therapy will receive 8 weekly sessions of either therapy or standard…

This study tests ORCHID, an online skills-building program designed to improve mental health and reduce the risk of dropping out of care for aging women with HIV who also have HPV. The program includes 8 online sessions and optional meetings with a navigator. The study aims to se…

This study tests a personalized health pathway for 400 people with persistent COVID-19 symptoms lasting more than 12 weeks. Participants receive nurse follow-up and can choose workshops on disease management, anxiety, and fatigue. The goal is to see if this approach improves qual…

This study tests whether a mobile app-based nutritional program can help people living with HIV and fatty liver disease lose at least 5% of their body weight in 6 months. Participants are randomly assigned to use the app or receive standard lifestyle advice. The goal is to find a…

This study tests a procedure called RhinAer that uses heat to treat the nerves in the nose for people with chronic rhinitis (long-term stuffy or runny nose). Researchers want to see if it reduces inflammation and improves symptoms like cough and post-nasal drip. About 25 adults a…

This study compares two treatments for early-stage throat cancer: robotic surgery (TORS) or radiation therapy (IMRT). It looks at which one leads to better swallowing function and overall quality of life. About 138 adults with HPV-related throat cancer are taking part. The goal i…

This study tests a new, team-based rehabilitation program for 125 working-age adults with persistent physical symptoms and chronic fatigue. The program includes doctors, therapists, and counselors who work together to help patients manage their symptoms and improve daily function…

This study tests whether a 48-week exercise program can improve physical function and reduce disability in HIV-positive adults over 50 in Côte d'Ivoire. 180 participants will be split into three groups: supervised group exercise, home-based exercise with phone support, or health …

This pilot study tests whether an electronic health record tool can help doctors identify patients at higher risk for HIV and prescribe PrEP, a daily pill that prevents HIV. Researchers will roll out the tool in 2-3 community health centers and compare PrEP prescription rates to …

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 follows 500 adults who had COVID-19 to see what health problems they face months later. Researchers will track symptoms like tiredness, breathing trouble, and lung damage. The goal is to learn how common these long-term issues are and who is most likely to have them.

This study follows 583 adults who recovered from COVID-19 or were close contacts. Researchers will track their health, mental well-being, and immune responses over 3 years to understand long-term effects and whether prior infection prevents reinfection. Participants undergo regul…

This study enrolls up to 10,000 cancer patients at the National Cancer Institute who are not on an active treatment research protocol. Participants receive standard medical care, including lab tests and scans, while researchers collect their health information to build a data rep…

Researchers at Peking University First Hospital are studying how the immune system responds to SARS-CoV-2 infection in people who have blood cancers compared with people who have no underlying diseases. The observational study enrolls 60 participants and collects clinical details…

This study looks at HIV-infected adults who have been on antiretroviral therapy for a long time and have very low virus levels. Researchers want to see if the virus stays stable or changes over time. Participants visit the clinic every six months for blood tests and a special whi…

This study follows 200 people who have had the flu to see how their immune system changes over two years. Participants give blood and nasal samples every three months. The goal is to learn how long antibodies last and how they change, which could help create more effective flu va…

This study looks at whether taking the smallpox drug TPOXX changes how well the JYNNEOS vaccine works. About 100 healthy adults aged 18 to 42 will get two doses of the vaccine and either TPOXX or a placebo for 28 days. Researchers will check for side effects and measure immune re…

Researchers are testing a coaching program to help primary care clinics in rural West Virginia screen and treat opioid use disorder, HIV, and hepatitis C. The program includes group priority-setting, rapid-cycle improvement coaching, and provider training. Twenty clinics will tak…

This study talks to people living with HIV from diverse backgrounds to learn what helps or hinders them from getting oral health care and cancer prevention. Researchers will hold focus groups and use questionnaires to understand barriers and gather ideas for improvement. The goal…

This study compares how well two FDA-approved COVID-19 vaccines—Novavax (a protein-based vaccine) and Pfizer (an mRNA vaccine)—trigger the immune system. Researchers will measure antibody levels against several virus variants in 54 healthy adults aged 18-79 who have risk factors …

The KIDCOV study investigates whether mild or asymptomatic COVID-19 that does not require hospitalization increases the risk of kidney injury. Researchers enroll 2,000 adults who tested positive or negative for COVID-19, balanced by race and ethnicity across California, Michigan,…

Researchers are reviewing medical records from a large hospital network in Buenos Aires to understand what happens to adults with severely weakened immune systems after they catch RSV, influenza, or SARS-CoV-2. The study covers 350 patients and looks at how sick they were at diag…

Researchers at Columbia University are studying how SARS-CoV-2, the virus that causes COVID-19, spreads among people living in the same home. They enroll households with at least one person who tests positive or was exposed to the virus, including children and health care workers…

Researchers in Buenos Aires reviewed safety reports filed after people received the Qdenga dengue vaccine at private clinics over a two-year period. The review covers anyone aged 4 and older, with a special look at adults over 60 and at allergic-type reactions. The goal is to see…

This study, run by Fudan University and local health authorities, uses computer models to predict the best way to use dengue vaccines in Yunnan, China. Researchers will collect blood samples from 220 residents to measure antibody levels and simulate different vaccination scenario…

This study aims to understand how the immune system responds to a second infection with a mild bird flu virus (H10N7). Healthy adults who were infected with H10N7 in a previous study will be infected again and monitored closely in the hospital for 9 days. The goal is to learn mor…

This completed study tested different messages to see which ones make adults more willing to get the HPV vaccine, which prevents certain cancers. Over 5,300 adults aged 18-45 were randomly assigned to read one of five theory-based messages or a control message. The goal was to fi…

Researchers are testing whether an online HIV stigma training can reduce stigmatizing attitudes and behaviors in nursing students. Third- and fourth-year nursing students will either take this training or a standard HIV epidemiology course. Before and after, the students will com…

This study looks at whether fungi moving from the gut into the blood can cause inflammation and worsen lung function in people with HIV. Researchers will measure a fungal marker called BDG in blood and urine, and track lung health over three years. The goal is to better understan…

This study follows 121 adults who have been cured of chronic hepatitis C to understand why some still develop liver complications like scarring or cancer. Participants are monitored for up to 10 years with regular tests, scans, and occasional liver biopsies. The goal is to learn …

Duke University is creating a secure, centralized repository to store data and medical specimens from COVID-19 patients and suspected cases. The repository will support multiple COVID-19 research studies by housing core data and consent forms, and samples may be collected specifi…

This study looks at people with HIV who are 75 or older and take at least five medications regularly. Researchers want to understand how this 'polypharmacy' affects healthy aging and quality of life. They will interview participants and review their medical records to count medic…

Researchers in the UK are following 1,000 people with cystic fibrosis (CF), including children and adults, to see how many develop antibodies to the virus that causes COVID-19 over two years. They will take blood samples every six months to measure antibody levels after natural i…

This study looks at how well the mpox vaccine works and how safe it is in people with HIV compared to those without HIV. About 174 adults who either recently got the mpox vaccine or had a recent mpox infection will take part. The goal is to fill important knowledge gaps and help …

This completed study examined 217 Hispanic people living with HIV in California, Mexico, and Puerto Rico to see if the types of bacteria in the anus are linked to high-risk HPV infection and pre-cancerous lesions. Researchers collected anal swabs and questionnaires to compare mic…

This nationwide study follows thousands of pregnant women from early pregnancy through the first year of their baby's life to understand how COVID-19 infection affects both mother and child. Researchers will track infections, including those without symptoms, and compare pregnanc…

This study looks at how often CD4 cell counts are measured when adults in Zambia begin or restart antiretroviral therapy (ART) after a long break. The goal is to see how many people have advanced HIV disease and whether low testing rates prevent proper care. Researchers will asse…

This study tests a new AI-powered toolkit designed to help public health officials at local CDC offices respond more quickly to emerging infectious diseases such as COVID-19, mpox, influenza, and dengue. The toolkit combines data analysis, risk assessment, decision support, and e…

This study examines a program in two Boston-area jails designed to make HIV testing and treatment easier for people with opioid use disorder. Researchers will follow about 59 participants who are leaving jail within a month to see if they use HIV services, get tested, or take PrE…

This study investigates whether Zika and Tonate viruses can replicate in human placental tissue grown in the lab. Researchers will infect placental samples from early and full-term pregnancies and measure viral levels to compare how each virus behaves. The goal is to better under…

This study looks at how the RSV vaccine affects the immune system in adults aged 60 and older. Researchers will take blood samples before and after vaccination to find early signs of protection. The goal is to understand why some people respond better than others. 14 volunteers w…

This study compares over 1,500 people living with HIV to a similar group from the general population to see if conditions like heart disease, COPD, and liver disease are more common or develop faster in those with HIV. Using detailed scans and tests, researchers will measure the …

This study looks at how the immune system of kidney transplant patients responds to the shingles vaccine and to natural shingles infection. Researchers will track antibody and T-cell levels over time in patients who have had a transplant or are on the waiting list. The goal is to…

This study looks at how the immune system's T cells respond to two common herpesviruses—cytomegalovirus (CMV) and varicella-zoster virus (VZV)—in people who have had a liver transplant. Because transplant recipients take drugs that suppress their immune system to prevent organ re…

This observational study will use cardiac MRI to examine how stimulant and polysubstance use affects heart scarring and inflammation in 400 people with and without HIV. Participants will have one study visit for a detailed heart scan. The goal is to better understand the combined…

This study follows 75 adults aged 65 and older over three to four flu seasons to learn why the flu vaccine becomes less effective as people age. Participants will receive a different FDA-approved flu vaccine each year, and researchers will collect blood, nasal swab, and stool sam…

This study looks at how well a long-acting HIV injection (CAB+RPV LA) works for people who live far from their doctor. About 55 patients and clinic staff will share their experiences through surveys and interviews over 15 months. The goal is to understand what helps or hinders ge…

This study looks at two different methods to help VA clinics adopt a team-based depression care service for veterans living with HIV. The service has been shown to work well and save money, but no VA clinics currently use it. Researchers will compare the two approaches to see whi…

This study looks at specific immune cells called myeloid cells in people who were hospitalized with COVID-19 pneumonia. Researchers want to understand how these cells respond to the virus and whether certain cell types can predict how sick a person gets. The goal is to find new w…

This observational study follows people who have been exposed to Andes virus, a hantavirus that can cause severe respiratory illness. Researchers collect blood samples and monitor symptoms at key points from exposure through infection and recovery. The goal is to understand how t…

This study follows 500 ICU patients to compare long-term mental and physical health between those with and without COVID-19. Researchers use surveys and tests to measure quality of life, thinking skills, and emotional well-being. The goal is to identify specific problems caused b…

This long-term study follows 7,500 adults with HIV who are taking antiretroviral therapy. Researchers track their health over time to understand complications, side effects, and how the infection evolves. The goal is to improve monitoring and care for people living with HIV.

This study investigates whether hospital caregivers working in COVID-19 patient areas are more likely to get infected than those in non-COVID areas. Researchers will take blood samples from participants on day 0, day 15, and day 30 to check for antibodies that signal past infecti…

This study tests whether training primary care providers on how to talk to patients about vaccines can increase flu and COVID-19 vaccination rates. Over 24,500 patients and their doctors at multiple clinics will take part. Doctors in some clinics will receive special communicatio…

This study looks at how the immune system of patients in the intensive care unit (ICU) responds to severe infections caused by viruses or bacteria. Researchers will take extra blood samples from 38 adults to analyze immature granulocytes, a type of immune cell. The goal is to see…

This pilot study tracks 24 adults who were hospitalized for COVID-19. Researchers use diaphragm ultrasound to see how well the main breathing muscle works 3 and 6 months after leaving the hospital. The goal is to describe long-term breathing changes, not to test a treatment.

This study tracks 56 follicular lymphoma patients to see how long their COVID-19 and other vaccine immunity lasts while they receive chemotherapy and maintenance therapy. Researchers will collect blood samples at several time points to measure immune responses. The goal is to und…

This study looks at how chronic hepatitis B virus (HBV) infection affects natural killer (NK) cells, which are key immune cells that fight infections. Researchers will collect blood samples from 80 people with HBV and compare them to healthy donors. The goal is to understand why …

This study follows about 360 people with chronic hepatitis B who had a good response to the experimental drug bepirovirsen in earlier trials. No new drug is given; researchers simply monitor whether the response lasts over time. Participants may or may not continue standard antiv…

This study aimed to see if the antibiotic doxycycline could protect people from severe COVID-19. Researchers planned to analyze health records of patients who took doxycycline for acne during the pandemic. However, the study was withdrawn before enrolling any participants, so no …

This study looks at HIV patients over 40 (or those on HIV therapy for over 10 years) who switched to either a three-drug or a two-drug antiretroviral regimen. Researchers will measure markers of inflammation in the blood and track how many patients develop other health conditions…

This study tests a strategy called EMPOWER that uses patient portals to send women educational materials about PrEP (medication that prevents HIV) and lets them easily schedule a doctor visit if interested. The goal is to see if this approach improves women's knowledge about PrEP…

This study tests a new digital tool called INCLUDE, designed to help clinics in Nepal identify and reduce stigma faced by people living with HIV. The tool includes a stigma assessment, a dashboard linking stigma to care data, and a library of stigma-reduction activities. Research…

This study uses a special bronchoscopy technique called narrow band imaging to look at blood vessel patterns in the airways of people with COVID-19. Researchers will compare images from three groups: patients with COVID-19, patients with other lung infections, and patients with l…

This study looks at whether using a UV light filter on private well water can lower the chance of stomach infections in children under 5. About 900 families in Pennsylvania and New Jersey will either get a working UV filter or a fake one. Researchers will track how often kids get…

This study looks at how COVID-19 impacts people with hepatocellular carcinoma, a type of liver cancer. Researchers will track infection rates and see how the virus affects liver function, cancer treatment, and overall health. About 23 participants from a French national liver can…

This study follows 98 elderly residents in French nursing homes to see how long their COVID-19 antibodies last. Researchers will also measure immune markers linked to aging to understand why some older people have weaker immune responses. The goal is to learn how to better protec…

This study follows 300 adults in the Democratic Republic of the Congo who received either the MVA-BN or LC16m8 mpox vaccine as part of a national campaign. Researchers collect blood samples at several time points to measure how well the vaccines trigger and maintain antibodies ag…

This study tracked 81 critically ill COVID-19 patients admitted to a French intensive care unit. Researchers compared factors like age, medical history, and treatments to understand who becomes severely ill. The goal is to improve care for future patients.

This study planned to test telemonitoring for older adults (75+) in nursing homes with confirmed or probable COVID-19. The goal was to see if remote monitoring could improve healthcare management and reduce deaths within 30 days. However, the study was withdrawn before enrolling …

This study is testing whether a computer can automatically measure how much lung tissue is damaged in patients with severe breathing problems from COVID-19 or after surgery. Researchers will compare the computer's lung measurements to standard severity scores in 500 patients. The…

This study tests a program where veteran peer workers provide education, healthcare navigation, and social support to 150 veterans with opioid use disorder who are not connected to VA healthcare. The goal is to reduce risky behaviors related to overdose and HIV/HCV infection. Res…

This study adapts an existing stigma-reduction program specifically for pregnant and postpartum women living with HIV in Ghana. Researchers will interview 30 women and 20 providers to understand their experiences, then work with stakeholders to tailor the program. Finally, 90 pre…

This study aimed to see if personalized computer-based brain exercises could improve thinking skills in adults with HIV who have mild memory or attention problems. Researchers planned to enroll 120 people aged 40 and older, giving half of them training focused on their weakest me…

This study follows 298 older adults with HIV in Zambia to compare brain health between those who have had HIV for a long time (7+ years) and those with a shorter infection (1-2 years). Researchers will track memory, thinking, mental health, frailty, and nerve health over 6 years.…

This study follows 90 people who survived severe COVID-19 pneumonia and needed intensive care. Researchers will check their physical health, mental health, and quality of life at 3 months, 6 months, 1 year, and 5 years after leaving the ICU. The goal is to better understand the l…

This study tracks side effects and severe dengue cases in 2,000 people who already got the QDENGA dengue vaccine in Malaysia. No new vaccine is given—researchers simply collect health data from participants. The goal is to understand real-world safety and whether vaccinated peopl…

This study gives a single dose of bepirovirsen to 32 adults with hepatitis B, some with kidney disease and some healthy. Researchers measure how much drug gets into the blood and how long it stays. The goal is to see if kidney problems change drug levels, which could affect futur…

This study was designed to track how many healthcare workers at Lille University Hospital caught COVID-19 over 10 weeks. Researchers planned to test 100 workers every two weeks using nasal swabs and blood tests, along with questionnaires about their work and home exposures. The g…

This study aimed to collect medical information from people who developed unusual blood clots within four weeks of receiving a COVID-19 vaccine. The goal was to better understand any possible link between the vaccine and these rare events. However, the study was withdrawn before …

This study was designed to track how COVID-19 infection might worsen the condition of people with inherited metabolic diseases (IMD). Researchers planned to collect information from French patients with IMD who had or had COVID-19 to see how often their metabolic disease got wors…

This study was designed to compare how often patients with severe COVID-19 developed lung infections while on a ventilator during the first and second waves of the pandemic. It was an observational study that would have looked back at patient records across European ICUs. However…

This study is a medical registry that follows over 21,000 adults hospitalized in 2021 at a Russian hospital. Researchers will analyze their health records, including chronic conditions, COVID-19 history, and outcomes like heart attacks or strokes, over five years. The goal is to …

This study looks at how well the HPV vaccine works in women living with HIV and whether self-collected HPV tests can improve cervical cancer screening. About 650 women will use a self-swab kit at home or in the clinic. Those with positive results will get follow-up exams. The goa…

This pilot study is testing whether two natural dietary supplements—taxifolin (found in apples and onions) and ergothioneine (found in mushrooms)—can improve immune function in healthy adults aged 50 to 65. Researchers will measure how well immune cells engulf and destroy threats…

This study planned to see if faster testing and treatment for hepatitis C could be given to inmates right when they enter prison. The goal was to start medication sooner to reduce the spread of the virus. However, the study was withdrawn and no one took part.

This study is collecting blood samples and health information from 1,613 HIV patients to learn more about the infection and how to improve care. Researchers will track heart and brain health, as well as other medical conditions. The goal is to use this knowledge to make HIV treat…

This study was designed to test a new system that uses tiny silica particles on HIV medication (Biktarvy) and a smartphone app to help people track whether they have taken their pills. The goal was to see if the system is easy to use and accurate over 90 days. However, the study …

This study uses special MRI scans with inhaled gases to see how lungs work in people with asthma, COPD, or COVID-19. Researchers will follow up to 160 participants over several years to track changes in lung function. The goal is to better understand why some patients struggle wi…

This study aims to create a test that predicts how hospitalized COVID-19 patients will fare in the short and long term (up to one year). Researchers will enroll 600 adults from hospitals and Veterans' facilities, using medical records and lab data to forecast risks like frailty, …

This study looks at 57 people who received a COVID-19 vaccine to understand why some develop heart injury or myocarditis. Researchers use advanced heart scans (PET/MRI) and blood tests to find early warning signs. The goal is to better identify those at risk and improve follow-up…

This study aims to improve how we predict and prevent dengue outbreaks by looking at how people move around the city. Researchers in Cuba will collect information from 810 residents about their daily travel, along with mosquito and weather data. The goal is to build better comput…

This study tests a program called LIFT to help people who inject drugs in Kyrgyzstan face less stigma and lower their risk of HIV. About 80 participants will join peer-led group sessions to build support and learn how to use HIV prevention services. The goal is to see if the prog…

This study reviews the records of up to 800,000 people who received the TAK-003 (Qdenga) dengue vaccine at VNVC centers in Vietnam between September 2024 and September 2025. Researchers will look at age, sex, location, and vaccination history to see who got the vaccine and how. N…

This study looks at medical records and follow-up data from 10 people living with HIV in four cities in southern Sichuan, China. The goal is to see how well HIV treatment is working by checking virus levels after 12 months. This is an observational study that does not test a new …

This study looks at whether temporarily reducing immunosuppressive medication can help kidney transplant recipients mount a stronger immune response to a third dose of the COVID-19 mRNA vaccine. Fourteen participants with low or no antibodies will have their antimetabolite dose l…

This study compares immune responses to flu and COVID-19 vaccines between people with chronic spinal cord injuries and healthy individuals. Researchers will analyze blood samples to see if gene activity and antibody levels differ between the groups. The goal is to understand why …

This study looks at organ changes in people recovering from COVID-19, comparing those with and without type 2 diabetes. Researchers will use scans to measure organ size and volume. The goal is to learn more about how COVID-19 affects the body long-term in diabetic patients.

This study follows 1,200 children and young adults who had MIS-C, a rare inflammatory condition linked to COVID-19. Researchers will track heart function and other health outcomes over time using echocardiograms and medical records. The goal is to understand the long-term effects…

This study compares two flu vaccines: a nasal spray and a standard shot. Researchers will measure immune responses in the nose and blood of 60 healthy adults aged 18-49. The goal is to understand how each vaccine triggers protection and find ways to improve future flu vaccines.

This study follows 69 people infected with HTLV-1, some of whom have developed a rare blood cancer called adult T-cell leukemia/lymphoma. Researchers will track survival rates over 2 and 5 years, along with viral levels and genetic markers. The goal is to better understand how th…

This study was designed to investigate whether new skin lesions on fingers or toes were linked to COVID-19. It planned to test adults with these lesions for the virus using PCR and antibody tests. However, the study was withdrawn before enrolling any participants, so no results a…

This study was designed to learn how the protein calprotectin might change blood stem cells in people with severe COVID-19 or certain blood cancers. Researchers planned to compare cells from patients and healthy donors in the lab. However, the study was withdrawn before any parti…

This study tests a new program to make it easier for people living with HIV to get screened for substance use disorders. The program uses online patient portals and in-clinic tools to find those who need help and connect them to treatment. Researchers will track how many people g…

This study looks at why people with severe liver disease who are in the intensive care unit (ICU) are at risk for a dangerous fungal lung infection called invasive pulmonary aspergillosis. Researchers will study 450 patients to find better ways to predict, diagnose, and treat thi…

This study looks at whether people with chronic hepatitis delta who have been on bulevirtide for at least 48 weeks and have very low virus levels can safely stop treatment. Researchers will monitor 20 participants for 48 weeks after stopping to find biological markers that predic…

This study looks at how HIV might disrupt the body's internal clock, which could lead to health problems like diabetes and heart disease. Researchers will track gene activity at different times of day in 80 people with and without HIV. The goal is to understand why these issues a…

This study aimed to understand how patients and clinic staff feel about using long-acting injectable medications to treat both HIV and opioid use disorder together. Researchers planned to enroll 30 patients and 5-10 staff, giving patients the combined injections and following up …

This small, early study is testing whether spironolactone, a drug already approved for high blood pressure, can reduce the hidden HIV reservoir in people on effective HIV treatment. Researchers will give the drug to 12 adults (both with and without HIV) to see how it affects a ke…

This study explores whether transgender individuals can collect their own samples for HPV testing at home or in a clinic. Researchers want to learn how common high-risk HPV is in this group and whether self-sampling is acceptable and effective. About 100 transgender men and women…

This study aimed to see if adding patient questionnaires, staff training, and telemedicine could improve mental health and substance use disorder care for people living with HIV. It was planned for five clinics in Alabama, but the trial was withdrawn before enrolling any particip…

This study follows 127 people with HIV-related Kaposi sarcoma in Malawi and South Africa who are receiving standard chemotherapy (paclitaxel or bleomycin plus vincristine). Researchers want to understand why some patients respond better than others, looking at factors like gender…

This study looks at how doctors and nurses in radiation oncology used telehealth instead of in-person visits during the COVID-19 pandemic. Researchers will survey 1,000 healthcare providers at Duke Cancer Center to understand their experiences and challenges. They will also track…

This study follows over 2,000 people and their pets in the Canton of Bern to learn how infections like COVID-19 spread and what social and environmental factors influence transmission. Participants provide samples and answer questionnaires over time. The goal is to improve pandem…

This study is for adults receiving a kidney, lung, liver, or heart transplant. It will collect blood and tissue samples to learn how the body responds to CMV, a common virus that can cause serious problems after transplant. The goal is to better understand the virus and improve f…

This study observes over 15,000 HIV patients in Malawi to see how different ways of delivering HIV treatment (like group visits or community pick-up points) affect viral suppression, patient satisfaction, and clinic efficiency. Researchers surveyed patients and providers at 12 he…

This study follows 200 ICU patients with severe COVID-19 to see how often they develop lung scarring (pulmonary fibrosis). Researchers will use blood tests and CT scans to find early signs of scarring and identify risk factors. The goal is to understand how scarring affects recov…

This study tests whether sending mailed invitations and assigning patient navigators can increase the number of high-risk patients who attend regular liver cancer ultrasound screenings. The trial includes 652 adults with cirrhosis or chronic hepatitis B, who are at risk for hepat…

This study follows 1,000 Australians to see how well they follow COVID-19 rules like quarantine and distancing. Researchers also track the social, economic, and mental health effects of these measures. No treatment or vaccine is tested—the goal is to learn how to make public heal…

This study will safely give a small dose of the Delta COVID-19 virus to 20 healthy adults aged 21-30 in Singapore. The goal is to see if the virus causes infection and to check for side effects. This 'human challenge' model could help test future vaccines and treatments faster.

This study tests whether machine learning can predict which HIV patients are likely to miss clinic visits or have treatment failure. Researchers will give clinic workers risk alerts to help them reach out to high-risk patients. The goal is to improve retention in care and viral s…

This study surveys 771 adults with HIV in Zambia who have started or restarted antiretroviral therapy (ART) within the last six months. Researchers want to learn what services and support patients prefer during this critical early period, when many drop out of care. The goal is t…

This study looks at different ways to deliver HIV treatment in Zambia to see which methods work best for patients and clinics. Researchers will survey over 8,000 patients and healthcare providers at 12 health facilities. The goal is to help policymakers make better decisions abou…

This observational study is tracking over 15,500 people with HIV at 24 healthcare facilities in South Africa. Researchers are comparing different ways of delivering HIV treatment and care to see which models work best for patients and healthcare providers. The study looks at vira…

This study surveys about 1,100 adults in South Africa who have recently started or restarted HIV treatment. The goal is to understand what services and support they need to stay in care during the first six months, a time when many patients drop out. Results will help design bett…

This study looks at how the COVID-19 pandemic changed the number of new cancer cases in Bavaria, Germany. Researchers analyzed data from 438,000 adults diagnosed with cancer between 2018 and 2023 to see if certain regions or cancer types were more affected. The goal is to underst…

This study looks at how the flu vaccine changes immune cells in the nose and blood. Researchers will collect samples from 30 healthy adults before and after they get the flu shot. The goal is to understand if the vaccine creates 'resident memory' immune cells in the nose, which c…

This study tests a program called Potlako+ that combines community education, support for healthcare providers, and patient navigation to help people with cancer symptoms get diagnosed and treated faster. About 874 participants in Botswana will be split into two groups: one recei…

This study planned to check how the COVID-19 quarantine affected people who were already seeing a psychiatrist. Researchers wanted to measure PTSD and other mental health symptoms during quarantine and a few months later. However, the study was withdrawn before enrolling anyone, …

This study tracks how long the flu virus stays in the upper airways of 18 hospitalized adults who are taking oseltamivir (Tamiflu). The goal is to see if antiviral treatment can safely shorten the time patients need to stay in isolation, freeing up hospital rooms during flu seaso…

This study tests a guideline designed to help doctors safely reduce or stop overactive bladder medications in people aged 65 and older. Researchers will compare how many patients continue these drugs after six months between those whose doctors follow the guideline and those who …

This study is building a large group of people living in the US who are willing to be contacted about future research, especially on COVID-19. Participants sign up online and share health information through surveys. The goal is to create a ready pool of volunteers for upcoming s…

This study involves 48 adults with HIV who have had undetectable virus levels for at least 2 years while on antiretroviral therapy. Researchers are measuring two specific markers (CD32a and X) on immune cells to see if they relate to the amount of hidden HIV DNA in the body. The …

This study aimed to see if COVID-19 makes asthma worse or harder to control. Researchers planned to compare asthma patients who had COVID-19 with those who did not, tracking lung function and symptoms for a year. However, the study was withdrawn before enrolling anyone, so no res…

This study looks at how COVID-19 changes the bacteria in the gut of hospitalized patients. Researchers will collect stool samples from 15 patients to measure the virus in feces and see if these changes relate to how sick patients become. The goal is to better understand the link …

This study tests a program called CHIMES designed to help young Black gay and bisexual men living with HIV get better mental health care. The program includes posters, provider training, mental health screening, and case management. Researchers will track whether it leads to more…

This study looks at whether giving staff bonuses for hitting targets helps them deliver better substance use counseling to people with HIV. Researchers are comparing two strategies: one with just training and feedback, and another that adds monetary incentives. The goal is to see…

This study looks at how well cancer patients respond to common vaccines like flu, COVID-19, and shingles. Researchers will measure antibody levels before and after vaccination in 250 adults with cancer. The goal is to understand immune responses in this group, not to test a new t…

This study reviews medical records of 200 people hospitalized with unexplained meningitis or meningoencephalitis. Researchers want to see if adding a test for tick-borne encephalitis (TBE) helps find more cases. No new drug or treatment is being tested—only the impact of a change…

This study looks at how having a penicillin allergy record affects treatment and antibiotic resistance in patients hospitalized with COVID-19. Many people labeled as allergic to penicillin are not truly allergic, leading to use of less effective antibiotics that can drive resista…

This study planned to track patients who had been in the intensive care unit for severe COVID-19, checking for long-term health problems like breathing, heart, kidney, and nerve issues. Researchers would have used questionnaires and doctor visits over 12 months. However, the stud…

This observational study follows 11 patients with chronic hepatitis B and delta coinfection and liver cirrhosis who are already receiving the antiviral drug Bulevirtide. Researchers want to see if suppressing the virus reduces portal hypertension—a dangerous buildup of pressure i…

This study follows 830 women in Alabama who are at risk for HIV and sexually transmitted infections (STIs). Researchers will use a smartphone app to provide information and resources, and track how many women start using PrEP, a medication that prevents HIV. The goal is to learn …

This study planned to test a powder made from organic rice and honey as a treatment for COVID-19. It was withdrawn before enrolling any participants. The main measurements were things like humidity and levels of heavy metals in the powder, not how well it worked against the virus…

This study looks at how the Takeda dengue vaccine (TAK-003) activates T-cells, a key part of the immune system. Researchers will vaccinate 30 healthy adults and analyze their T-cell and antibody responses over 26 weeks. The goal is to find reliable markers of protection, which co…

This study follows over 3,000 Black people with HIV in the UK to understand how genes and lifestyle affect their risk for kidney disease, heart disease, diabetes, and obesity. Researchers collect health data and blood/urine samples to find genetic markers that predict these condi…

This study examines how the COVID-19 pandemic affected syphilis cases and their interaction with HIV. Researchers will review medical records of 240 adults diagnosed with syphilis in Italy between 2017 and 2025. The goal is to see if pandemic restrictions led to delayed diagnoses…