Primary viral infectious disease

This phase 2 trial is testing whether a combination of two experimental drugs, BRII-835 and BRII-179, can clear the hepatitis B virus from the body in adults with chronic infection. Participants will receive the drug combination and then be monitored to see if they can safely sto…

This study tests whether 12 weeks of a three-drug antiviral combination works as well as 24 weeks for curing hepatitis C in people with chronic liver disease. Researchers will enroll 192 patients who have not been treated before and randomly assign them to either the shorter or l…

This study tested whether offering hepatitis C (HCV) treatment right at methadone clinics helps more people get cured compared to sending them to outside specialists. Over 600 adults on opioid addiction therapy took part across 13 clinics in Ukraine. Some clinics provided simplif…

This study tested a combination of four drugs (asunaprevir, daclatasvir, ribavirin, and pegylated interferon) in 60 adults with hepatitis C genotype 4 who had not responded to standard treatment. The goal was to see if this stronger therapy could clear the virus completely, with …

This early-stage trial tested whether a new herpes vaccine called HSV529 is safe for people. Researchers gave the vaccine or a placebo to 69 healthy adults aged 18 to 40, some of whom had herpes and some who did not. Participants received three shots over six months and were moni…

This trial is testing whether a single injection of an experimental chikungunya vaccine, VLA1553, is safe and triggers a protective immune response in healthy children aged 1 to 11 years. About 300 children will receive either a full dose, a half dose, or a control vaccine. The s…

This early-stage trial is testing whether a new vaccine can safely train the immune system to fight Epstein-Barr virus (EBV), which causes infectious mononucleosis and is linked to several cancers. Healthy adults aged 18 to 29, both with and without prior EBV infection, will rece…

This Phase 3 trial tests an updated COVID-19 vaccine (BNT162b2, 2025/2026 formulation) in 343 children aged 5 to 11 who have medical conditions that put them at high risk for severe COVID-19. All participants receive one dose and are monitored for about 6 months to check safety a…

This large study is testing updated mRNA vaccines designed to protect against newer Omicron variants of COVID-19 in healthy children aged 6 months to 12 years. Over 4,000 participants will receive one or more doses depending on their age and vaccination history. Researchers are m…

This trial evaluates an experimental vaccine designed to protect against respiratory syncytial virus (RSV), a common virus that can be severe in older adults. The study includes healthy adults aged 18 to 50 in an early phase, and adults 60 and older in a later phase. Participants…

This trial is testing three experimental mRNA-based flu vaccines in healthy adults aged 18 and older. The goal is to see how safe they are and how well they trigger an immune response compared to standard flu vaccines. Participants receive a single injection, and researchers moni…

This early-stage trial tests an experimental nasal spray vaccine called BW-1014, designed to protect against pandemic flu. Healthy adults aged 18 to 45 receive two doses of the spray, with or without a nanoemulsion adjuvant, followed by a standard flu shot six months later. Resea…

This Phase 3 trial is testing whether a booster dose of Takeda's tetravalent dengue vaccine can strengthen and prolong immunity against all four dengue virus types. Healthy adolescents and adults who previously received the vaccine in earlier studies are being followed to see how…

This trial is testing whether a high-dose flu vaccine is safe and triggers a stronger immune response in adults aged 60 and older compared to the standard-dose vaccine. Participants receive a single injection and are monitored for side effects and antibody levels. The goal is to …

This trial investigates how well routine childhood vaccines work in children who have recently finished chemotherapy for cancer. The goal is to see if revaccination can restore protective immunity against diseases like measles, mumps, and whooping cough. Participants receive a se…

This study compares two approved flu vaccines—Flucelvax (made in animal cells) and Flublok (made using a recombinant protein)—in adults aged 18 to 64. Researchers will measure immune responses from blood samples taken before vaccination, one month later, and six months later. The…

This early-stage trial is testing whether a new oral vaccine can safely protect against norovirus, the highly contagious virus that causes vomiting and diarrhea. Healthy adults aged 18 to 80 will receive a single dose of the vaccine, which targets two common norovirus strains. Re…

This study tested an experimental HIV vaccine in 132 healthy, HIV-negative adults. The vaccine uses a harmless virus (ALVAC) to deliver HIV proteins, plus a protein boost (gp120) with an adjuvant to strengthen the immune response. The main goals were to check safety and measure w…

This study evaluates the safety of a quadrivalent subunit influenza vaccine in over 3,000 healthy individuals aged 3 years and older in Jiangsu Province, China. Researchers track rare adverse reactions, including cerebral infarction, and monitor side effects within 30 minutes, 7 …

This study tests a single dose of a live but weakened RSV vaccine, given as nose drops, in infants and children aged 6 to 24 months who have no prior RSV antibodies. The goal is to see if the vaccine is safe, infects the nose without causing severe illness, and triggers an immune…

This study tests an experimental vaccine called GBS-NN/NN2 against Group B Streptococcus (GBS), a bacteria that can cause serious infections in newborns. The trial includes pregnant women both with and without HIV, giving two doses between 26 and 30 weeks of pregnancy. Researcher…

This study tests a two-dose Ebola vaccine regimen in healthcare workers in the Democratic Republic of the Congo, who are at high risk during outbreaks. Participants receive an initial shot of Ad26.ZEBOV followed by a booster of MVA-BN-Filo 56 days later. Some will also get an add…

This study tests an RSV vaccine in pregnant women living with HIV. The goal is to see if the vaccine is safe and helps mothers pass protective antibodies to their babies, potentially preventing severe RSV lung infections in infants. The trial involves about 681 pregnant participa…

This study tests a hexavalent vaccine that protects against six diseases, including polio, but uses a lower dose of the inactivated polio vaccine (IPV). The goal is to see if this reduced-dose version works as well as the standard full-dose vaccine in infants. Around 1,500 health…

This phase 2b trial tests several versions of an experimental flu vaccine that includes an adjuvant (MF59) to strengthen the immune response. The vaccine is made from cells, not eggs, and targets four flu strains. Around 1,000 adults aged 50 and older receive a single shot and ar…

This phase 3 study tests whether three doses of an oral rotavirus vaccine (ROTAVAC 5D) can prevent severe diarrhea in healthy infants. Around 4,270 Chilean babies receive either the vaccine or a placebo. Researchers track cases of severe rotavirus gastroenteritis to measure the v…

This study tested whether getting a different COVID-19 vaccine for the second shot (instead of the same one) is safe and boosts immunity. 100 healthy adults who had already received one dose of the AZD1222 vaccine were randomly assigned to get either the same vaccine or a differe…

This study tested a new two-step vaccine approach to protect HIV-infected adults from pneumococcal infections, a common cause of serious illness in this group. The standard vaccine often doesn't work well in people with lower immune cell counts. The study involved 212 participant…

This phase 3 study tested the 9-valent HPV vaccine (Gardasil 9) in over 1,000 Japanese males aged 16 to 26. The goal was to see if the vaccine could prevent persistent HPV infections that can lead to genital warts and anal cancers. Participants received either the vaccine or a pl…

This study looked at how well an inactivated EV71 vaccine protects children over 5 years after vaccination. It included 180 healthy kids who were first vaccinated between 2 months and 6 years old. Researchers measured antibody levels to see if protection lasted. The goal was to u…

This study tested an experimental RSV vaccine in adults who had a lung or kidney transplant, as well as in healthy adults over 50. The goal was to see if the vaccine could safely boost their immune response against RSV, a common and potentially serious respiratory virus. Research…

This study tested a new mRNA-based flu vaccine in over 1,100 adults aged 50 and older. The vaccine targets multiple flu virus proteins to potentially provide stronger protection. Researchers compared it to standard flu shots and monitored safety and immune response for six months…

This Phase 1 trial tested a new HIV vaccine in 68 healthy adults to see if it is safe and triggers an immune response. The vaccine uses a DNA-based approach combined with an HIV protein to train the body to fight the virus. While early results are encouraging, this is just the fi…

This large, final-stage study tested a new combination vaccine that aims to protect against both COVID-19 and the flu with a single shot. About 9,300 adults aged 65 and older took part, receiving either the combo vaccine or a standard high-dose flu vaccine. Researchers checked ho…

This study tested a single-dose chikungunya vaccine (VLA1553) in about 750 teenagers aged 12 to 17. The goal was to see if the vaccine safely produces enough antibodies to protect against the virus. Participants received either the vaccine or a placebo, and their immune responses…

This study looks at whether an inactivated enterovirus 71 (EV71) vaccine still protects children two to two-and-a-half years after the last dose. It involves 126 healthy children from Vietnam who received the vaccine in an earlier phase 3 trial. Researchers will take a blood samp…

This early-stage trial tested a new two-part vaccine designed to treat chronic hepatitis B. It involved 26 healthy adults to check safety and immune response. The vaccine uses a protein first shot followed by a booster to teach the immune system to attack the virus.

This large study tested the Pfizer-BioNTech COVID-19 vaccine in over 11,800 healthy children aged 6 months to 12 years. Researchers looked at side effects and immune responses after different doses. The goal was to find the right dose that is safe and triggers strong protection. …

This study tested Novavax's COVID-19 vaccine in 3,600 children aged 6 months to 12 years. The goal was to see if the vaccine is safe and triggers a strong immune response. Children received two doses 21 days apart, with some getting a placebo. The trial is complete, and results w…

This study looked at whether the HPV vaccine works in girls aged 9 to 17 who are taking medicines that weaken their immune system, such as after an organ transplant or for diseases like lupus. The goal was to see if their bodies produce enough antibodies to protect against HPV. T…

This study tested two DNA vaccines designed to prevent hemorrhagic fever with renal syndrome caused by Hantaan and Puumala viruses. A total of 132 healthy adults received up to four doses of vaccine using a needle-free jet injector. The main goal was to see if the vaccines trigge…

This completed Phase 3 trial tested whether an adjuvanted flu vaccine (FLUAD Quadrivalent) triggers a stronger immune response than a standard flu vaccine (FluQuadri) in 192 healthcare workers in Lima, Peru. Participants received one dose of either vaccine, and researchers measur…

This study tested whether a third dose of either the CoronaVac or Comirnaty vaccine boosts immunity better in adults who had two prior doses at least six months earlier. Researchers measured antibody levels in 451 participants from Hong Kong 28 days after the booster. The goal wa…

This study tested a new nasal spray vaccine for respiratory syncytial virus (RSV), a common cause of serious breathing problems in babies and young children. The vaccine was given as nose drops to 88 healthy children aged 4 months to 5 years, including those who had and had not b…

This study tested a booster vaccine for H5N6 bird flu in about 260 adults. Some had previously received an H5N1 bird flu vaccine, while others had not. The goal was to see if the booster was safe and triggered a strong immune response. Participants received one or two doses of th…

This study tested different ways to help teenagers complete the HPV vaccine series at community health centers serving low-income families. Researchers compared parent reminders (by mail and text), clinic system changes, and a combination of both against usual care. Over 17,000 t…

This completed Phase 4 trial tested whether the Butantan Institute's seasonal flu vaccine is as safe and effective as the Sanofi vaccine. A total of 632 Brazilian adults aged 18 to 69 received one of the two vaccines. Researchers measured immune response through blood tests and t…

This study tested an experimental vaccine called VBI-2901a in 103 healthy adults aged 18-64 who had already received at least two doses of a licensed COVID-19 vaccine. The vaccine is designed to protect against three coronaviruses: SARS-CoV-2 (which causes COVID-19), SARS-CoV-1, …

This study tested a single combination vaccine that aims to protect against both COVID-19 and influenza at the same time. About 980 adults aged 50 and older received either the combo shot, a flu shot alone, a COVID-19 shot alone, or both shots separately. Researchers monitored sa…

This study tested an experimental mRNA vaccine called mRNA-1647 to see if it is safe and triggers an immune response against cytomegalovirus (CMV). The trial involved 315 healthy adults aged 18 to 40, some of whom had never been exposed to CMV. Researchers measured side effects a…

This study tested a single combination vaccine that targets both COVID-19 and influenza in adults aged 50 and older. About 980 participants received either the combo shot, the flu vaccine alone, the COVID-19 vaccine alone, or separate shots in each arm. Researchers monitored safe…

This study tested updated versions of the Pfizer-BioNTech COVID-19 vaccine designed to target newer Omicron variants (XBB.1.5, JN.1, and KP.2). Over 1,000 healthy people aged 12 and older received a single dose. The main goals were to check safety and measure the immune response.…

This study tested the JYNNEOS smallpox vaccine in 1,600 healthcare workers in the Democratic Republic of the Congo who are at high risk of catching mpox. The goal was to see if the vaccine can prevent mpox infection and is safe to use. Participants received the vaccine and were m…

This study tested whether a vaccine called VPM1002 could help healthcare workers miss fewer days of work due to respiratory illnesses, including COVID-19. About 1,200 doctors, nurses, and other hospital staff received either the vaccine or a placebo. The goal was to see if the va…

This study tested whether three different manufacturing batches (lots) of Novavax's COVID-19 vaccine produce the same immune response and safety in adults. About 900 healthy adults aged 18 to 49 who had already been vaccinated received one of the three lots. The results help ensu…

This study tested whether giving a smaller dose of the MVA-BN (JYNNEOS) monkeypox vaccine under the skin works as well as the standard full dose given into the muscle. About 229 healthy adults aged 18 to 50 received either one-fifth or one-tenth of the standard dose under the ski…

This study tests an experimental vaginal insert (ABI-2280) to see if it can safely clear persistent high-risk human papillomavirus (HPV) infection in women aged 25 to 55. Participants must have had HPV for at least a year with no serious cervical changes. The study compares diffe…

This study tests whether two lab-made antibodies can safely control HIV in people who stop their regular antiretroviral therapy for a short time. Thirty-two adults in Sub-Saharan Africa who are currently on HIV treatment will receive either the antibodies or a placebo. The goal i…

This trial tests whether offering small cash payments to people living with HIV, when they attend counseling sessions and clinic visits, can help them stay engaged in care and achieve viral suppression. Participants are adults identified as high risk for dropping out of care at t…

This phase II trial is testing whether argon plasma coagulation (APC) can safely and effectively treat high-grade anal lesions (AIN 2/3) in HIV-positive men who have sex with men. APC uses ionized argon gas to deliver a controlled electrical current that destroys abnormal cells. …

This early-stage trial is testing an experimental HIV drug called ACC017 in adults with HIV-1 who have never taken HIV medication. The study aims to see if the drug is safe, tolerable, and effective at lowering the amount of virus in the blood, both when used alone and when combi…

This study looks at whether the antiviral medication Paxlovid can reduce the risk of severe illness, death, and loss of daily functioning in older adults living in long-term care hospitals in Korea. Researchers will compare health outcomes of residents aged 60 and older who recei…

This study tests a drug called hydronidone in 300 adults with liver scarring (fibrosis or cirrhosis) from chronic hepatitis B. Participants take the drug three times daily for 28 days to see if it is safe. The main goal is to track any side effects.

This study tests a drug called hydronidone in 200 adults with liver fibrosis caused by chronic hepatitis B or fatty liver disease. Participants take three capsules three times daily for 28 days. The main goal is to check for side effects, not to measure how well the drug works.

This study tests a drug called hydronidone in 150 adults with liver scarring caused by chronic hepatitis B. Participants take the capsules three times daily for 28 days. The main goal is to check for side effects and ensure the drug is safe. This is an early-phase trial, so it fo…

This study tested a combination of the targeted drug brentuximab vedotin (ADCETRIS) plus standard CHP chemotherapy in 82 people with newly diagnosed peripheral T-cell lymphoma (PTCL) that has low CD30 levels. The goal was to see how many patients' tumors shrank or disappeared. Re…

This study compares three treatments for early HIV infection: zidovudine (AZT) alone, alpha-interferon alone, or both together. It aims to see which best lowers viral load, protects the immune system, and delays the first serious infection. About 180 adults with early HIV and hea…

This study in Zambia is testing whether community-based and streamlined models of antiretroviral therapy (ART) care can help people living with HIV stay in treatment. It involves about 3,100 HIV-positive adolescents and adults who are not acutely ill. Participants may receive car…

This trial is testing an experimental drug called brincidofovir, given intravenously, in people aged 2 months and older who have an adenovirus or cytomegalovirus infection. The study aims to see how safe and tolerable different doses are, and whether the drug can reduce the amoun…

This trial tests whether a daily oral supplement called Papilozumib can positively change the vaginal and gut bacteria in women who test positive for human papillomavirus (HPV). Over three months, 21 women aged 30-65 will take three capsules daily. Researchers will measure change…

This trial tests whether a structured, pharmacist-led medication management program can help HIV patients at high risk of drug-related problems take their medications more consistently. Participants are randomly assigned to usual care, a basic program, or an enhanced program with…

This trial tests a community-based program called VINA STEAM, designed to help gay and bisexual men in Ho Chi Minh City cope with stress and HIV-related stigma. Participants join small peer-led groups to build skills that may reduce minority stress and stigma. The study measures …

This study looked at whether adding metformin, a diabetes drug, to standard tuberculosis (TB) treatment is safe and tolerable for people also living with HIV. 112 adults with TB and HIV took either standard TB medicines alone or with metformin for 11 weeks. Researchers monitored …

This study in Zambia evaluates whether dedicated 'viremic clinics'—where people with HIV who have high viral loads receive extra support from a team of healthcare providers—can improve viral suppression. The trial includes 548 participants aged 15 and older who have been on first…

This early-stage trial tests the safety and tolerability of two experimental injectable drugs (capsid inhibitors) in 85 healthy adults. Participants receive a single dose or multiple doses of the drug or a placebo. The goal is to see if these drugs are safe enough to study furthe…

This study tests whether adults with chronic hepatitis B who have no liver scarring can safely stop taking antiviral drugs. The 140 participants have undetectable virus levels and negative HBeAg status. Researchers will monitor for viral relapse and liver problems over time.

This study tested three ways to treat warts: a topical acid solution, injections of candida antigen (a yeast extract), and a combination of both. 126 people with warts took part. The goal was to see which approach cleared warts best, including warts not directly treated, and how …

This early-phase study tests an oral antiviral drug called letermovir in 12 infants born with symptomatic congenital cytomegalovirus (CMV) infection. The goal is to find the right dose and see if it safely lowers the amount of virus in the body. Babies also receive standard treat…

This study tested a shorter course of a chemotherapy combination called EPOCH-R in 68 people with HIV and a type of lymphoma. The goal was to see if reducing the amount of chemotherapy could still control the cancer while causing less damage to the immune system. Participants rec…

This phase 3 trial asks whether a dolutegravir-based HIV regimen works as well as or better than an efavirenz-based regimen in pregnant women living with HIV-1. The study compares how well each treatment suppresses the virus at delivery and checks safety for both mothers and thei…

This study tests whether intravenous immunoglobulin (IVIG) can reduce symptoms of autonomic dysfunction—such as dizziness, rapid heartbeat, and fatigue—in people with long COVID. Two hundred participants will receive either IVIG or a placebo (saline) for 9 months, plus coordinate…

This early-phase trial tested an experimental drug called BW-20507 in 32 people. First, healthy volunteers received a single dose to check safety. Then, people with chronic hepatitis B received multiple doses to see how the drug behaves in the body and whether it fights the virus…

This study tests whether adding a targeted drug called brentuximab vedotin to standard chemotherapy can help people with adult T-cell leukemia/lymphoma (ATLL), a rare and aggressive blood cancer. The combination, known as BV-CHEP, aims to improve response rates by targeting a mar…

This study tested a program called SYV (The Voice of Youth) to see if supporting mental health helps young people with HIV take their medication regularly. 690 youth aged 10-24 in Tanzania took part. The goal was to improve viral suppression by addressing mental health challenges…

This study investigates the safety and how the body processes intravenous (IV) zanamivir in hospitalized infants under 6 months old with complicated influenza. Currently, no antiviral is approved for this age group, leaving them vulnerable. The trial will measure drug levels in t…

This trial tests whether a web-based app called Game Plan can help men who have sex with men reduce heavy drinking and sexually transmitted infections. Participants receive home HIV/STI self-testing kits and are randomly assigned to either a 24-hour helpline alone or the helpline…

This trial compares two immunosuppressive regimens in CMV-positive kidney transplant recipients. One group receives everolimus with a reduced dose of cyclosporine A, while the other gets standard mycophenolic acid with full-dose cyclosporine. The goal is to see whether the everol…

This trial tests whether giving small cash payments to HIV-positive pregnant women in Nigeria can encourage them to stay in care and reduce the chance of passing HIV to their babies. Women who register their pregnancy, pick up their medication, deliver at a clinic, and get their …

This phase 2 trial is testing whether adding an experimental drug called JNJ-73763989 to standard oral antivirals can better suppress hepatitis D virus in people who are also infected with hepatitis B. About 52 adults with stable chronic co-infection will receive either the combi…

This study tested a new strategy: giving TB prevention medicine at the same time as TB testing to people with HIV starting or restarting antiretroviral therapy. The goal was to see if this approach gets more people on TB prevention quickly without missing active TB cases. The tri…

This study uses health records from over 1.8 million adults in the Czech Republic to see if the antiviral drug molnupiravir lowers the risk of dying from COVID-19 during the Omicron wave. Researchers compare people who received molnupiravir plus standard care with similar patient…

This study tested a special digital pill and smartphone app to help HIV-negative men who have sex with men and who also have substance use disorder take their daily HIV prevention medication (PrEP) consistently. Forty participants took a PrEP pill with a sensor that recorded when…

This trial investigates an experimental oral drug, LY3143921 hydrate, which blocks a protein called Cdc7 that cancer cells need to divide. It is being tested in adults with advanced solid tumours, including colorectal, ovarian, lung, and pancreatic cancers, that have not responde…

This study surveys HIV-positive adults who switch from taking two or three pills to a single pill containing the same three medicines (tenofovir, emtricitabine, and efavirenz). Researchers want to know if the simpler regimen improves how well patients take their medication, how t…

This study tests two approaches to help people recently involved with the justice system start HIV prevention or treatment and substance use care. One group gets standard patient navigation; the other can choose from a menu of services including in-person clinics, a mobile health…

This study tests whether offering hepatitis C testing right in community pharmacies—using a simple finger-prick device—helps more people on opioid therapy get diagnosed and cured compared to the usual approach of referring them to a clinic. Participants are adults on stable metha…

This study tests whether a virtual environment (VE) can help minority men who have sex with men and are living with HIV adopt healthier behaviors to prevent cardiovascular disease. Participants use a computer-based virtual world to access educational quests and other features. Th…

This trial compares two surgical methods—carbon dioxide laser ablation and electrocoagulation—for removing genital warts in women. The main goal is to see which technique gives a better cosmetic result six weeks after treatment. Researchers also track operation time, complication…

This study looked at whether taking vitamin D3 for 3 months can lower inflammation and boost immune cells in people with HIV who are already on antiretroviral therapy. Twenty adults with early-stage HIV took vitamin D3 supplements. Researchers measured changes in inflammation mar…

This study looks at whether CABENUVA, a long-acting injectable HIV medication, is safe and effective for people with HIV who also have severe kidney impairment, including those on dialysis. Participants receive the drug as monthly or every-2-month injections. The goal is to see h…

This study tests a care model where hospitalized adults with opioid use disorder and a serious infection receive long-acting injectable buprenorphine from their infectious disease doctors, alongside infection treatment. The goal is to keep patients on effective medication for opi…

This study tests a treatment called LB-DTK-COV19, made from a patient's own immune cells, for people who have had COVID-19 symptoms or a positive test for more than 21 days. Participants receive two infusions of their personalized T cells, two weeks apart, and are followed for si…

This large, completed trial tested several potential COVID-19 treatments in over 1,500 hospitalized adults across Europe. Earlier drugs like remdesivir and hydroxychloroquine were dropped after showing no benefit. The current phase is testing a new antibody combination called AZD…

This study tested a DNA-based vaccine called VGX-3100 in 44 HIV-positive adults with high-grade anal precancer caused by HPV types 16 or 18. The vaccine was given with a mild electric pulse (electroporation) to help cells absorb it and boost the immune system's attack on the abno…

This study tests whether offering peer support, small incentives, telehealth visits, or prepaid phones helps people with hepatitis C and substance use disorders get linked to medical care. Participants are adults in Appalachia who have tested positive for hepatitis C and have a h…

This study tests different ways to help people with HIV take their medication regularly. Researchers will enroll 534 people starting HIV treatment in Cape Town. They will use a device to track pill-taking and try different outreach methods, like calls or texts, to support adheren…

This study tests a program called Maisha (Swahili for 'life') that aims to reduce HIV stigma among pregnant women and their male partners entering antenatal care in Tanzania. The program includes a video and counseling session before HIV testing, plus extra support for those who …

This trial tests a community-based approach to HIV prevention for young people aged 15-30 in rural KwaZulu-Natal, South Africa. Peer navigators guide participants to mobile clinics that offer sexual health services, including HIV testing, PrEP, and contraception. The goal is to r…

This study tests a mobile app designed specifically for Black adults living with HIV who smoke daily. The app includes culturally tailored content and anxiety-reduction techniques to support quitting. Participants are randomly assigned to use either the tailored app or a standard…

This study tests a new way to help vulnerable people with HIV get diagnosed and start treatment right away using a mobile screening unit. Participants receive the once-daily pill Biktarvy on the same day they are enrolled. The goal is to see if this approach helps them stay in ca…

This study tests whether the immunotherapy drug durvalumab can be safely given to people with advanced liver cancer who also have an active hepatitis B infection. All participants receive an antiviral drug (entecavir) to control the hepatitis B virus. The main goal is to see if d…

This study tested whether adding Naderin (sodium nucleinate) to standard treatment could reduce complications in 75 patients with cancer, tuberculosis, or hepatitis C. The main group received Naderin plus standard therapy, while the control group received standard therapy alone. …

This trial tests a package of services called TASKPEN, which combines HIV care with screening and treatment for high blood pressure, diabetes, and tobacco use. It involves over 5,700 adults living with HIV in Lusaka, Zambia. The goal is to see if this integrated approach helps mo…

This study tests an experimental drug called SPI-1005 (ebselen) in adults hospitalized with severe COVID-19. Participants receive either the drug or a placebo to see if the drug is safe and helps improve recovery. The trial is randomized and double-blind, meaning neither patients…

This study tested the drug delamanid in 37 children with multidrug-resistant tuberculosis (MDR-TB), some of whom also had HIV. The goal was to see how the drug works in the body, check for side effects, and find the right dose. Children took delamanid along with their regular TB …

This study investigates whether respiratory muscle training and walking exercises can improve lung function, reduce breathlessness, and enhance quality of life in women who have recovered from COVID-19 pneumonia. Eighty women aged 20 to 45 are divided into four groups: a combinat…

This trial tests a smartphone app called Tappt that uses smart tags to help people with hepatitis C stick to their daily oral medication. Participants scan tags each time they take a dose, and the app tracks adherence. The study compares their results to historical data from simi…

This study tests a combination of three HIV drugs (amprenavir, lopinavir, and ritonavir) in patients whose current treatments are no longer working. The goal is to see if this new mix can lower the amount of HIV in the blood over 26 weeks. Participants are HIV-positive adults who…

This trial investigates whether famotidine, the active ingredient in Pepcid, can help relieve COVID-19 symptoms in adults who are not sick enough to be hospitalized. Participants receive either famotidine or a placebo, along with standard care, and report their symptoms remotely.…

This trial compares a once-daily combination of three HIV drugs (emtricitabine, didanosine, and efavirenz) to the standard multi-pill regimen containing a protease inhibitor. The goal is to see if the simpler daily pill works just as well at keeping the virus undetectable, while …

This study tested a once-daily combination of three HIV drugs (FTC, ddI, efavirenz) in 39 adults who had never taken HIV medication before. The goal was to see if this simpler, once-a-day pill routine worked well and had fewer side effects than older treatments. Participants had …

This study tested whether adding prazosin, a drug usually used for high blood pressure, to standard hepatitis C treatment could reduce liver scarring. 112 adults with chronic hepatitis C (genotype 1 or 4) and severe liver fibrosis took part. Researchers measured changes in liver …

This study tested whether an extract from papaya leaves (CPLE) can help people with dengue fever. 250 adults with confirmed dengue were given either CPLE capsules or a placebo for 5 days. The main goals were to see if the extract could raise platelet counts and reduce the risk of…

This early-stage study tested a new treatment approach for adults with chronic hepatitis B or D. Twenty participants received two medications in sequence: P1101 (a type of interferon) followed by an anti-PD1 drug. The main goal was to check safety and tolerability, while also loo…

This study tested a combination of three drugs—Grazoprevir/Elbasvir, Sofosbuvir, and Ribavirin—in 26 adults with hepatitis C genotype 1 or 4 who had not been cured by previous treatments. The goal was to see if 16 or 24 weeks of this therapy could clear the virus. The main measur…

This completed Phase 4 trial tested the HIV drug Biktarvy in 202 people who were newly diagnosed with HIV and had low CD4 counts (under 200), meaning they started treatment late. Participants received either Biktarvy or a standard three-drug combination. The main goal was to see …

This study tested whether personalized text message reminders can help young people with HIV take their medication consistently. 210 participants from 12 clinics received either standard care or tailored text reminders for 6 months. The goal was to see if the texts improved medic…

This study tested whether a new form of interferon (IFN alfa-2b XL) combined with ribavirin works better and causes fewer side effects than the standard treatment for chronic hepatitis C (genotypes 1 or 4). 84 adults who had not been treated before or had not responded to previou…

This study tested the drug pravastatin in 21 HIV-positive people with high cholesterol who were already on HIV medications. The goal was to see if pravastatin could safely lower their cholesterol without affecting their HIV treatment. Participants received either pravastatin or a…

This study tested whether daily cassava root and sesame seed granules, along with nutrition education, could improve the nutritional health of adults with HIV. Sixty-four participants took part, receiving either the granules plus education or education alone for 16 weeks. The goa…

This study tested three different ways to help people living with HIV stop smoking. Over 670 patients from 13 HIV clinics in Hanoi took part. Nurses either referred patients to a quitline, provided counseling, or offered counseling plus nicotine gum. The goal was to see which met…

This study tested whether Mediterranean or DASH diets improve liver function in people with nonalcoholic fatty liver disease (NAFLD). 75 adults with mild to moderate liver enzyme elevations were split into three groups: one following general dietary guidelines, one on a Mediterra…

This study looked at whether giving plasma (the liquid part of blood) from people who recovered from COVID-19 could help critically ill patients fight the virus. The plan was to collect plasma from up to 240 recovered donors and give it to sick patients. However, the plasma donat…

This study tested a stepped-care program where trained non-specialists provided mental health support and HIV medication adherence help to 280 people in rural Zimbabwe. Participants had both depression and high HIV viral loads. The goal was to see if this approach could improve v…

This study tested the safety and how the body processes the HIV drug dolutegravir in newborns whose mothers have HIV. A total of 48 mother-infant pairs from four countries participated. Infants received either a liquid or tablet form of the drug during their first weeks of life, …

This early study tested a lab-made antibody called 3BNC117-LS in 43 people, some with HIV and some without. The goal was to see if it is safe and how long it stays in the body. If it works, this antibody might one day help control HIV with less frequent dosing.

This study tested a combination of peginterferon alfa2a and ribavirin in 17 HIV-positive people with chronic hepatitis C who had not responded to earlier treatment. Participants received weekly injections and daily pills for 48 weeks. The main goal was to see if the virus became …

This completed Phase 2/3 trial tested whether adding baloxavir to standard oseltamivir treatment helps hospitalized flu patients clear the virus faster. Fifteen adults with confirmed influenza were randomly assigned to receive either the combination or oseltamivir alone. The main…

This study looked at 38 kidney transplant patients who had CMV infection. Researchers wanted to see if measuring a type of immune cell (γδ T cells) could help decide who needs extra medication to prevent the virus from coming back. The goal is to avoid unnecessary drugs while sti…

This early-stage trial tested multiple doses of an injectable drug called lipovirtide in 24 adults with HIV who had never taken antiretroviral therapy. The main goal was to check safety and how the drug moves through the body, with a secondary look at whether it can lower HIV lev…

This study tested whether giving early treatment to adults with COVID-19 who have risk factors (like age over 60 or high blood pressure) could prevent them from needing oxygen, hospitalization, or dying. About 412 people took part. The goal was to see if these treatments are safe…

This study looked at whether a 16-week strength training program can prevent or reduce late effects like muscle loss, heart disease, and diabetes in adults who had a bone marrow transplant as children. 28 survivors and a matched control group participated. The goal was to see if …

This study tested a new way to manage high blood pressure and heart disease risk in people living with HIV in Botswana. Over 4,600 adults on HIV treatment took part. The goal was to see if adding heart health checks and treatment to regular HIV clinic visits helps more people con…

This pilot study tested a text-message game called iTAG that uses points, a scoreboard, and motivational messages to encourage young people with HIV in Ghana to take their medication regularly. Twenty-one participants aged 18-24 received the game for 90 days. Researchers measured…

This study tested an experimental mRNA vaccine (mRNA-1608) in 303 healthy adults aged 18 to 55 with recurrent genital herpes caused by HSV-2. The goal was to see if the vaccine is safe and can reduce the number of outbreaks. Participants received different doses of the vaccine or…

This study tested a new way to care for people who inject drugs and have hepatitis C. Along with standard hepatitis C treatment, participants were offered HIV prevention medication and buprenorphine for opioid use disorder. The goal was to see if this combined approach could cure…

This study tested whether the BCG vaccine, normally used to prevent tuberculosis, could reduce the hidden HIV reservoir in people living with HIV who are on antiretroviral therapy. Sixty participants received either a single BCG shot or a placebo. Researchers measured changes in …

This study tested whether two lab-made antibodies, VRC01LS and 10-1074, could keep HIV under control in 30 children in Botswana who started treatment early. The children received the antibodies by infusion and stopped their regular HIV medication. Researchers monitored how many k…

This study looked at HIV-positive adults who switched from a standard three-drug therapy to either a two-drug or a three-drug regimen. Researchers wanted to see if the two-drug option could reduce long-term side effects while keeping the virus under control. The main focus was on…

This early-stage study tested a single dose of mesenchymal stromal cells in 7 COVID-19 patients with severe acute respiratory distress syndrome (ARDS) who were on ventilators. The main goal was to check safety, looking for serious side effects like heart problems or blood clots w…

This completed Phase 3 trial tested a once-daily combination of two drugs, lonafarnib and ritonavir, in 10 adults with chronic hepatitis D. The goal was to see if the regimen is safe and can lower the amount of virus in the blood over 48 weeks of treatment and 24 weeks of follow-…

This study tested whether nintedanib, a drug used for other lung diseases, can slow down lung damage in people who had severe COVID-19. It included 103 adults who still had lung problems more than 30 days after their COVID diagnosis. The main goal was to see if the drug helped ma…

This small pilot study tested whether adding pegylated interferon lambda to standard care helps hospitalized adults with mild-to-moderate COVID-19 recover faster. Nine participants were randomly assigned to receive the drug or standard care alone. The study measured how long the …

This study tested whether livers from donors with hepatitis C could be safely transplanted into people without hepatitis C. Five patients on the liver transplant waiting list received these livers and were then treated with an antiviral drug to prevent infection. The goal was to …

This study tested a counseling program for couples in Zambia to help pregnant women living with HIV stay healthy. Nearly 500 couples took part. The program aimed to improve HIV medication adherence and viral suppression through relationship strengthening.

This study tested whether giving plasma from people who recovered from COVID-19 to those with severe or critical COVID-19 is safe and helps them get better. 350 adults received the plasma treatment. The main goals were to track serious side effects and see if fewer people died wi…

This study tested whether three common drugs—metformin, ivermectin, and fluvoxamine—could prevent severe illness and long COVID in 1,323 adults with early COVID-19. Participants were overweight or obese and not hospitalized. The key finding was that metformin reduced the risk of …

This study tested whether interferon-free drug combinations can cure hepatitis C in 150 people who had been successfully treated for liver cancer. Participants took pills like sofosbuvir and ribavirin for 12 weeks. The main goal was to see if the virus stayed undetectable 12 week…

This study tested whether a single HIV drug, darunavir/ritonavir, could replace the usual combination therapy in pregnant women with well-controlled HIV. The goal was to prevent mother-to-child transmission without using a class of drugs called NRTIs. 91 pregnant women already on…

This study tested whether people with HIV who have high immune cell counts (CD4 above 500) can safely take antiretroviral drugs in 6-month cycles—6 months on treatment, then 6 months off—instead of taking them every day. The goal was to see if this approach could keep their immun…

This trial tests whether a vaginal self-sampling device can accurately detect high-risk human papillomavirus (HPV) compared to samples collected by a clinician. About 1,000 women aged 30-64, either regular screening attendees or those who haven't been screened in 3+ years, will p…

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 checked whether 3D-printed nasal swabs work as well as standard swabs for diagnosing COVID-19. About 1,179 people who had COVID-19 symptoms or were recently exposed took part. Researchers compared the new swabs' accuracy and safety, like nosebleed risk, to the usual on…

This study looked at whether PET-CT scans can detect unique signs of COVID-19 in the lungs. Researchers scanned 22 patients suspected of having lung infections and compared the images to their COVID-19 test results. The goal was to find patterns that could help diagnose COVID-19 …

This study tested two new rapid tests that use a single nose swab to detect COVID-19, influenza A/B, and RSV. Researchers checked how accurate the tests are compared to standard lab methods and whether healthcare workers find them easy to use. The study involved 589 people with s…

This study collected nasal swabs, throat swabs, and saliva samples from 79 people with symptoms of flu, RSV, or COVID-19. The samples were used to help evaluate a point-of-care device called LumiraDx, which aims to quickly and accurately detect these viruses. The study focused on…

This study compares three automated blood tests (Abbott Architect, Siemens Immulite, and Diasorin Liaison) for diagnosing Epstein-Barr virus (EBV) infection. Researchers analyzed 91 blood samples from patients aged 3 to 82 to see how well each test detects key markers of EBV infe…

This study evaluates how well the LumiraDx SARS-CoV-2 Ag ULTRA test detects COVID-19 when used at point-of-care locations like clinics or pharmacies. Participants with COVID-19 symptoms provide nasal and nasopharyngeal swabs, and the test results are compared to a standard lab re…

This study checks whether a fingerstick blood test for COVID-19 antibodies gives the same results as standard lab tests using blood from a vein. About 42 people who recently had a positive COVID-19 PCR test will provide both fingerstick and venous blood samples. The goal is to se…

This study collected nose, throat, and blood samples from 523 adults with COVID-19 symptoms or a past positive test. The goal was to help develop and check the accuracy of a new rapid test for detecting COVID-19 antibodies and viral proteins. The test is designed to be used at th…

This study checked how well a new rapid test (LumiraDx) detects COVID-19 and flu A/B from a simple nose swab. Over 1,000 people with symptoms took part at clinics. The test aims to give fast results at the point of care, helping doctors tell these illnesses apart quickly.

This study checked how accurate two rapid tests (LumiraDx SARS-CoV-2 Ag Ultra and LumiraDx SARS-CoV-2 & Flu A/B) are at detecting COVID-19 and flu in people with symptoms. 716 participants provided nasal swabs at clinics. The results were compared to standard lab tests to measure…

This study tested a new rapid test (LumiraDx Influenza A/B + RSV Test) that uses a nasal swab to quickly detect flu A, flu B, and RSV. Over 500 people with cold or flu-like symptoms took part. The test was performed by healthcare workers at point-of-care sites and compared to sta…

This study tested a quick COVID-19 antigen test called LumiraDx at various point-of-care sites, like clinics. Over 1,100 people with COVID-19 symptoms took part. The test's accuracy was compared to standard lab methods to see how well it detects the virus.

This study tested a new saliva-based test for SARS-CoV-2 that gives results in less than an hour, without needing lab equipment. Researchers compared it to the standard PCR method using samples from 627 people, including healthcare workers and patients. The goal was to see if thi…

This study tested whether a shallow (2 cm) or deeper (4 cm) nasal swab is better at detecting COVID-19 using rapid antigen tests. Over 300 adults in Denmark each received both swab depths, and results were compared to a standard throat PCR test. The goal was to find the best bala…

This study checked how well a new rapid test, TestNPass, can detect COVID-19 using a nose swab. It involved 400 adults at a hospital in France. The goal was to see if the test is accurate enough to replace slower PCR tests and provide a digital health pass.

This study checked how well new blood tests (Access HBV assays) can detect hepatitis B infection. Researchers tested over 21,000 leftover blood samples from adults, including blood donors and hospital patients. The goal was to see if these tests are accurate compared to existing …

This trial tests whether sending reminder messages to older adults before a doctor's appointment can increase the number who get the shingles vaccine. The study will compare different message styles to see which is most effective. Participants are adults aged 50 and older who hav…

This study looks at whether US women at risk for HIV can and will take Truvada, a daily pill that prevents HIV infection. Researchers will measure how well women stick to the pill regimen over 24 weeks and explore their attitudes toward this prevention method. The goal is to see …

This study tests whether a brief self-affirmation exercise, where people reflect on a proud moment, can make health messages more acceptable and increase the uptake of COVID-19 rapid tests. Researchers are working with community health workers and the Mexican Consulate to reach L…

This trial tests whether a brief online game can help Canadian adults better identify COVID-19 vaccine misinformation. Participants judge true/false statements and get instant feedback in a game-like format, compared to reading the same information as a blog post or doing nothing…

This trial tests whether a brief online game can help adults better identify COVID-19 and vaccine misinformation. Participants judge true or false statements and get instant corrections in a game-like format. The study compares this approach to reading the same information as pla…

This completed study looked at whether lupus patients already taking hydroxychloroquine long-term had a lower risk of catching COVID-19 or developing severe symptoms. Researchers compared 552 patients who either took the drug or did not, using blood tests and questionnaires. The …

This trial tests whether a three-dose hepatitis B vaccine can protect healthcare workers in Zambia from infection. The vaccine is given at 0, 1, and 6 months, and blood tests measure the immune response. The goal is to see if the vaccine produces protective antibodies and cellula…

This study tests a program called Tu'Washindi, designed by and for young women in Kenya. It combines support clubs and community sessions to help girls ages 15-24 reduce intimate partner violence and consistently use HIV prevention pills (PrEP). About 1,562 participants will be f…

This study looked at whether taking a moderate dose (4,000 IU) of vitamin D daily could lower the chance of getting COVID-19 compared to a low dose (400 IU). Over 2,000 adults in the US took part for 12 months. The goal was to see if vitamin D can help prevent COVID-19 infection.

This trial tests whether giving children with autoimmune diseases (like inflammatory bowel disease or rheumatologic conditions) an extra booster dose of the flu vaccine improves their immune response compared to a single dose. These children take immunosuppressive medications tha…

This trial tests whether a self-administered, tablet-based exercise game, guided by foot-worn sensors, can help hospitalized COVID-19 patients maintain strength and mobility without in-person contact. The program aims to prevent physical decline (deconditioning) during hospital s…

This study tests two ways to prevent HIV: a rectal gel used before sex and daily pills. About 150 men will try each method for 8 weeks to see which is safer, easier to use, and more acceptable. The goal is to give people more choices for on-demand HIV prevention.

This trial tests whether text messages to parents and a brief training for healthcare providers can increase HPV vaccination rates among 11- and 12-year-olds. The study involves over 8,000 adolescents and their parents across Florida clinics. Some clinics will use both interventi…

This study tested a program where trained peer navigators (women with similar experiences) helped women in the criminal justice system access HIV prevention services like PrEP. The goal was to reduce stigma and improve linkage to care. Thirty women participated, and the study mea…

This trial tests a program designed for Latino fathers to help them reduce risky sexual behaviors, substance abuse, and domestic violence, and improve communication with their sons. The program combines two behavioral interventions: one that teaches fathers about HIV prevention a…

This trial tests a tablet-based decision support tool designed to help women learn about their HIV risk and prevention options, including PrEP. Women aged 18-45 who are not living with HIV will be randomly assigned to use the tool before a clinic visit or to receive standard coun…

This study tests a culturally tailored program to prevent chronic diseases like diabetes, high blood pressure, and obesity in Latino men over 50 living with HIV. Participants meet with a community health worker, join group walking sessions three times a week, and discuss pleasant…

This trial tests whether a recombinant flu vaccine (made in insect cells) works better than the standard egg-based flu shot at preventing flu illness in adults aged 18 to 64. About 4,000 college students and frontline workers will receive either vaccine and be monitored during fl…

This study tests whether training influential members of social networks to talk about PrEP can encourage more African-American men who have sex with men to use it. Half of the recruited networks will have their leaders trained to share accurate PrEP information and counter misco…

This trial investigates whether narrative (story-based) messages on Twitter are more effective than factual messages at encouraging parents to vaccinate their children against HPV. Parents of children aged 9–14 who have not started the HPV vaccine series will be randomly assigned…

This study compares two strategies to increase COVID-19 vaccination among unvaccinated students, school staff, and their household members. One group receives a text message with a website link about vaccination, while the other group gets a phone call from a peer. The goal is to…

This study tests whether a brief vaccine education session given to unvaccinated adults when they come for COVID-19 testing can increase the number of people who get vaccinated. The education includes a 15-minute counseling session, printed materials, and a referral to a vaccine …

This study compares different ways of screening pregnant women for three common sexually transmitted infections (chlamydia, gonorrhea, and trichomonas) to see if treating these infections can reduce the risk of preterm birth and low birth weight. Over 2,200 pregnant women in Sout…

This study tests a program called Start the Conversation, designed to help Black cisgender women learn about and start taking PrEP—a daily pill that prevents HIV. The program includes training for gynecology residents to discuss PrEP with patients, plus a social media campaign. R…

This trial evaluates whether a hospital-based remedial vaccination strategy can improve Tdap-IPV (tetanus, diphtheria, pertussis, polio) vaccination rates in adults aged 65 and older in the Sarthe region of France. Participants are randomly assigned to receive either the remedial…

This study tests a counseling program called ACTPrEP, designed to help young Black men who have sex with men (ages 18-34) start and continue taking PrEP, a daily pill that prevents HIV. The program uses acceptance and commitment therapy to address thoughts and feelings that might…

This study tested whether a booster dose of the Ebola vaccine (V920) could improve and extend immune protection in 248 healthy adults at risk of Ebola exposure through their jobs. Participants received the primary vaccine and were randomly assigned 18 months later to get a booste…

This completed trial in South Africa tested four support strategies—case management, food vouchers, peer buddies, and community PrEP pick-up points—to help female sex workers and young women stay on PrEP, a daily pill that prevents HIV. 304 participants were randomly assigned to …

This study tested an experimental antibody called AZD3152 to see if it can safely prevent COVID-19 in people with weakened immune systems. About 3,882 adults received either the antibody or a placebo/comparator. The goal was to measure how well the antibody neutralizes the virus …

This study looks at how often cisgender women in Kenya need to take the HIV prevention pill Truvada (TDF-FTC) to keep protective drug levels in their blood. Participants are randomly assigned to take 2, 4, or 7 doses per week for up to 16 weeks, and their drug levels are measured…

This study tests whether a proven HIV prevention education program can be delivered through Facebook to reach high-risk rural women in Appalachia. Participants are women leaving jail who have a history of drug use and risky sexual behavior. The goal is to see if social media can …

This study tested whether a couples-focused counseling and testing program could help prevent HIV and improve care. 544 couples from rural South Africa took part. The goal was to see if this approach increases viral suppression and engagement in HIV care.

This study tested whether giving intravenous immunoglobulins (IVIG) could prevent BK virus infection in kidney transplant recipients. The virus often causes graft problems. Researchers enrolled 359 patients with low antibody levels against their donor's virus strain and gave some…

This study tested whether taking the tuberculosis prevention drug isoniazid for 36 months instead of the usual 6 months could better prevent TB in adults with HIV. Nearly 2,000 participants in Botswana were randomly assigned to either short or long treatment. The goal was to see …

This study tested several types of flu vaccines in over 1,800 adults aged 65-82 in Hong Kong over four years. The goal was to see which vaccine or combination of vaccines provides the strongest and longest-lasting immune protection. Researchers measured antibody levels and immune…

This completed pilot study enrolled 101 transgender women and men who have sex with men to see how acceptable the HPV vaccine (Gardasil 9) is in these groups. Participants received three doses over six months, and researchers tracked how many completed the series and how common a…

This study tested a new way to prevent CMV infection in 42 CMV-positive kidney transplant patients. Researchers combined an antibody infusion with a specific type of immune cell (gamma delta T cells) to see if it could stop the virus from reactivating. The goal was to find a safe…

This study evaluated a program called PALMS that uses live movement and sound to teach HIV prevention to high-risk minority male teens aged 12-18 in juvenile justice or drug treatment centers. The goal was to see if the program reduces risky sexual behaviors and encourages HIV te…

This large study tested an experimental HIV vaccine in over 5,400 healthy South African adults at risk of HIV. The vaccine was designed to teach the immune system to fight HIV. Unfortunately, the vaccine did not prevent HIV infection, and the trial was stopped early. The results …

This study tested a nose spray containing heparin, a common and safe medicine, to see if it could stop the spread of COVID-19 within households. Over 500 people who lived with someone who tested positive for COVID-19 used the spray or a dummy spray three times a day for 10 days. …

This study looked at different ways to help young women in South Africa, ages 18-25, take their daily HIV prevention pill (PrEP) consistently. The goal was to find the best support strategies to keep them protected from HIV. 360 women took part in the study, which tested a step-b…

This study tested whether giving families educational materials, alcohol-based hand sanitizers, and surgical face masks could reduce the spread of colds and flu among household members. Researchers followed 2,788 people in 450 households in Northern Manhattan for 15 months. They …

This study tested a program to help young men (ages 17-24) who have sex with men use HIV self-testing and PrEP (a daily pill to prevent HIV). 118 participants joined the pilot study. The program provided information, motivation, and skills to encourage HIV testing and PrEP use. T…

This large Phase 3 trial compared a new experimental mRNA COVID-19 vaccine (mRNA-1283) with Moderna's original vaccine (mRNA-1273) in over 13,500 people aged 12 and older. The goal was to see if the new vaccine is safer, triggers a better immune response, and prevents COVID-19 at…

This study looked at how well the seasonal flu vaccine works in adults who are hospitalized with severe flu-like illness. Researchers compared vaccinated and unvaccinated patients across a network of French hospitals to see if the vaccine reduced confirmed flu cases. The goal is …

This study tested a special program called 'Estoy PrEParado' designed to help Latino men who have sex with men start taking PrEP, a daily pill that prevents HIV. The program provided information, motivation, and skills tailored to this community. Researchers enrolled 105 particip…

This study tested whether sending health tips via WhatsApp could help families in Colombia prevent dengue, Zika, and chikungunya. About 900 households were split into three groups: one got WhatsApp messages plus community support, one got community support only, and one got routi…

This study looks at whether online psychotherapy, a physical activity program, or a combination of both can reduce fatigue in people with Post-COVID syndrome. 195 adults with fatigue will be assigned to one of three groups for 3 months of treatment. The goal is to find which appr…

This study tests a type of brain stimulation called accelerated theta burst stimulation (a form of TMS) to see if it can lower cravings for methamphetamine in people living with HIV. Thirty adults aged 18-65 with HIV and a history of meth use will receive the treatment. The goal …

This study tested whether monthly 45-minute psychological interviews over 6 months could reduce post-traumatic stress symptoms in cancer patients affected by the COVID-19 pandemic. It included 29 adults with solid tumors who had moderate to high PTSD symptoms. The goal was to see…

This trial tests whether an internet-based self-help program called Couple HOPES can reduce PTSD symptoms and improve relationship satisfaction in couples where one partner is a military member, veteran, first responder, or healthcare worker with COVID-19-related PTSD. Participan…

This trial investigates whether ginkgo biloba, piracetam, or a combination of both can help people recover from persistent symptoms after COVID-19, such as memory problems and fatigue. The study enrolls adults aged 18 to 70 who had COVID-19 within the past three months. Participa…

This phase 2 trial tests whether a Chinese herbal formula, COVID Rehab Formula, can reduce fatigue and other lingering symptoms in people who have recovered from COVID-19. Participants take the herbal granules or a placebo daily for 8 weeks. The study focuses on those with ongoin…

This study explores whether a non-invasive brain training technique called qEEG-neurofeedback can help adults with long COVID who struggle with attention, memory, and self-reflection. Participants will undergo 10 sessions of neurofeedback aimed at normalizing brain wave patterns.…

This study tests whether two dietary supplements—eicosapentaenoic acid (EPA), an omega-3 fatty acid, and specialized pro-resolving lipid mediators (SPMs)—can reduce depressive symptoms in adults with long COVID. Participants take either EPA, SPMs, or a placebo daily for 12 weeks.…

This trial tests whether a virtual white board — an e-ink screen that shows patient status, care team information, and pending tests — can improve how satisfied patients feel during their emergency department stay. The study includes adults expected to stay at least four hours in…

This study tested a counseling program called the Friendship Bench for 106 teens aged 13-18 who have HIV and feel depressed or anxious. The program aims to improve their mood and help them stay engaged in their HIV care. Researchers measured how well the program worked by looking…

This pilot study tests a digital decision aid designed for people who have experienced sexual assault and are considering HIV post-exposure prophylaxis (PEP). The tool helps patients and providers weigh risk, effectiveness, side effects, and personal priorities together. Research…

This study explores whether combining mindfulness meditation with transcutaneous nerve stimulation (TENS) can reduce foot pain in people living with HIV who have peripheral neuropathy. Participants use a home TENS device and practice guided meditation over several weeks. The goal…

This study tests a 16-week program that combines mindfulness with gentle qigong exercises, delivered through a mobile app. It aims to reduce stress, depression, and anxiety in COVID-19 survivors, their caregivers, and the general public. Participants are randomly assigned to eith…

This study looked at whether high-intensity interval training (short bursts of hard exercise) can improve physical function and reduce fatigue in adults aged 50-80 living with HIV who are sedentary and tired. Participants were randomly assigned to either high-intensity training o…

This study tested whether a low-sugar diet, eating only during a 8-12 hour window each day, and periodic water fasts could reduce Long COVID symptoms. 77 adults with at least five Long COVID symptoms participated. The goal was to see if these dietary changes could lower symptom s…

This study looked at whether lying face down (prone positioning) helps hospitalized COVID-19 patients who have low oxygen levels but are not candidates for breathing machines. About 596 adults took part. The goal was to see if this simple position change could lower the chance of…

This study tested a training program for people living with HIV to help them become more active in managing their health. The program was delivered by psychologists and aimed to improve treatment adherence, quality of life, and emotional well-being. 75 participants took part in t…

This study tested whether a simple home program of breathing exercises and walking at least 6000 steps daily could ease long COVID symptoms like cough, breathlessness, and fatigue. Forty adults with long COVID followed the program for six weeks. Researchers tracked changes in sym…

This study tested whether showing children a visual guide about the dentist's office could lower their anxiety. 70 kids aged 5 to 14 were split into two groups: one got the picture-based lesson, the other got standard care. The children who saw the pictures reported less fear and…

This study tested a breathing exercise program for people with long COVID who still feel short of breath. 40 adults took part to see if the exercises could improve their breathing and daily activities compared to usual care. The goal was to find a simple way to help manage this c…

This study tested whether a gentle, noninvasive microcurrent treatment can reduce muscle pain in people who had COVID-19. Forty adults with post-COVID musculoskeletal pain were randomly assigned to receive either real or sham microcurrent therapy for 12 sessions. Researchers meas…

This study tested an online program called ORCHID that helps people with HIV feel more positive emotions. The goal was to see if it could reduce depression and improve HIV care. 29 adults from Chicago clinics took part. The program was designed to be used on a phone or computer.

This completed study tested a digital rehab program combining cognitive training, physical exercise, and mindfulness for people with long COVID who have memory and thinking problems. 172 adults with persistent cognitive symptoms at least 12 weeks after COVID-19 took part. The pro…

This study tested Pycnogenol, a natural pine bark extract, against a placebo in 153 adults with Long COVID. The goal was to see if it improves overall health and reduces symptoms like fatigue and brain fog. Participants took the supplement for 12 weeks and reported their health s…

This study compared a single dose of baloxavir marboxil to a 5-day course of oseltamivir in 100 Chinese children aged 1 to 12 with flu symptoms. The main goal was to check safety, including side effects. Researchers also measured how quickly symptoms like cough and fever improved…

This study tested whether breathing pure oxygen in a pressurized chamber (hyperbaric oxygen therapy) helps moderate-to-severe COVID-19 patients with low oxygen levels. Thirty adults who needed extra oxygen and had risk factors like diabetes or heart disease were enrolled. The goa…

This study looked at 805 blood donors who tested positive for hepatitis C virus (HCV) to learn how the virus spreads and affects health over time. Researchers collected blood samples and health information to track infection and liver disease. The goal was to better understand HC…

This study asks whether common antacids or multivitamins change how the body absorbs raltegravir, an HIV medication. Healthy adult volunteers will take raltegravir alone and alongside different antacids or a multivitamin, with blood samples measuring drug levels over 12 hours. Th…

This study followed 1,377 people living with HIV in Liberia over three years to track how the disease progresses and affects their health. Researchers collected blood and urine samples, conducted physical exams, and asked about medications and risk behaviors. The goal was to gath…

This study looked at 460 people with HIV to see what types of cancer they have and why some choose to join cancer clinical trials. Researchers tracked cancers like Kaposi sarcoma, lymphoma, and HPV-related tumors. They also used surveys to learn how HIV and cancer treatments affe…

This early-stage trial will test a new drug called hydronidone, which is being developed for liver fibrosis caused by hepatitis B. Since patients often need to take antiviral drugs for hepatitis B, researchers want to see if hydronidone can be taken safely alongside four common a…

This study looked at 190 HIV-positive women starting HIV medicines to see how often herpes virus symptoms appear or get worse. Researchers collected blood, urine, and vaginal samples over a year to track virus activity. The goal was to understand why some women have herpes flare-…

This study followed 775 healthy children aged 2-9 in Cambodia over three years to learn how mosquitoes spread dengue and other viruses. Researchers took blood samples every wet and dry season to check for past or current infections. The goal was to understand why young children g…

This study looked at 200 people living with HIV in Liberia to compare two tests for latent tuberculosis (TB) infection: a blood test (IGRA) and a skin test (TST). The goal was to see which test works better in this population. Participants had a skin test and their results were c…

This study collected tissue samples from the tonsils, lymph nodes, bowel, and lungs of HIV patients and healthy volunteers. The goal was to measure the amount of virus and certain immune cells in these tissues during treatment. By comparing samples, researchers hoped to learn mor…

This study aims to develop a program to help people living with HIV in Zambia re-engage with care after they have missed appointments or stopped taking their medication. Many people cycle in and out of HIV care, and returning is a critical moment to prevent future lapses. Researc…

This study aims to understand the lived experiences of family caregivers who provide unpaid care to people with mental health conditions like depression, anxiety, and trauma in Zambia during the COVID-19 pandemic. Researchers will interview caregivers and mental health experts to…

This study looks at how lipoproteins, like HDL (good cholesterol) and LDL (bad cholesterol), change in patients with severe COVID-19 in the intensive care unit. Researchers will measure specific proteins on these particles to see if they can predict which patients are at higher r…

This study will use artificial intelligence to analyze data from 400 COVID-19 patients treated in intensive care units. The goal is to see if machine learning models, including deep learning, can predict which patients are most likely to die from the disease. The AI's performance…

This study will observe how many eligible infants in Czechia receive nirsevimab, a monoclonal antibody that helps prevent RSV, during their first RSV season. Researchers will survey parents of about 250 infants born between April 2025 and March 2027 to understand immunization rat…

This study tests whether educating parents about HPV and the vaccine increases their intention to vaccinate their children. Researchers will assess parents' knowledge before and after an educational session. The trial involves 52 parents of children aged 11-18 in Turkey, where th…

This trial asks whether a single tablet combining three HIV medications (ACC017, emtricitabine, and tenofovir alafenamide) is absorbed by the body just as well as taking the same drugs separately. Healthy adult volunteers will receive both versions in a random order under fasting…

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 study aimed to understand how the immune system responds to seasonal and H1N1 flu vaccines in healthy adults. Researchers collected blood and nasal samples from 203 NIH employees before and after vaccination. The goal was to analyze immune responses to improve future vaccine…

This study looked at markers of inflammation, blood clotting, and blood vessel function in 310 HIV-infected adults and healthy volunteers. Researchers collected blood samples to understand how these markers relate to HIV and risks like heart disease or stroke. The goal was to gat…

This study tested a document called Voicing My CHOiCES, designed to help young adults (ages 18-39) with serious illnesses like cancer or HIV discuss their care preferences. Participants filled out questionnaires about anxiety, social support, and communication, then reviewed the …

This study looks at how psychological and social factors might help people living with HIV resist self-stigma—the negative feelings and beliefs they may hold about themselves due to their condition. Researchers will survey both patients and their healthcare providers to understan…

This study looked at liver fibrosis (scarring) in 127 HIV patients who had high liver enzymes while on antiretroviral therapy. Participants underwent tests like liver biopsy, ultrasound, and CT scans to measure liver damage. The goal was to understand how common and severe liver …

This study looks at how lung function, respiratory muscle strength, balance, and quality of life relate in Paralympic athletes. Researchers will measure breathing capacity, muscle strength, and balance in 24 athletes from sports like athletics, swimming, archery, and wheelchair b…

This early-stage study looked at how the experimental drug ALG-097558 behaves in 16 people with moderate liver impairment compared to healthy volunteers. The goal was to measure drug levels and safety, not to treat COVID-19. Results will help guide future dosing for patients with…

This study follows about 1,000 adults in South Africa and Uganda who are switching to a common HIV treatment called TLD, which combines three drugs into one pill. The goal is to see how effective TLD is in everyday conditions, not just in controlled trials. If the treatment stops…

This study looks at whether post-traumatic stress disorder (PTSD) in surgeons and anesthesiologists is linked to higher rates of complications in the patients they operate on. Researchers will screen surgical staff for PTSD using questionnaires and then track the recovery of thei…

This study looked at 324 people with hearing loss and an inner ear problem called enlarged vestibular aqueducts. Researchers collected DNA, hearing tests, and scans to find genes that may cause the condition. The goal was to learn more about why it happens, not to test a treatmen…

This completed Phase 1 study looked at 27 people with and without pulmonary hypertension to learn more about how blood vessel problems contribute to the disease. Researchers used heart catheterization, imaging, and blood tests to find biomarkers and understand disease mechanisms.…

This study looked at children who survived Ebola and compared them to close contacts who never got sick. Researchers checked for brain, nerve, and thinking problems more than 5 years after infection. The goal was to understand what lasting issues survivors face, not to test a tre…

This study tests whether a specially designed play can help reduce stigma around PrEP (pills that prevent HIV) for young women in Kenya. About 160 people, including young women who use PrEP and community members, will watch the play and share their thoughts. The goal is to see if…

This study looks at whether the virus that causes COVID-19 can be found in the semen of men with cancer who are storing sperm before treatment. Researchers will test both the fluid and the sperm cells for the virus and compare results with nasal swabs and blood tests. The goal is…

This study looks back at medical records of 150 adults with active cancer who had a confirmed case of shingles (herpes zoster). The goal is to understand the clinical features of shingles in these patients, such as how it spreads and complications like long-term nerve pain, and t…

This study looks back at the medical records of 1,000 adults with both chronic hepatitis B and metabolic fatty liver disease. The goal is to understand how these conditions affect kidney function, especially in people on long-term antiviral therapy. Researchers will also examine …

This study looks at how cumulative stress and trauma influence alcohol use and HIV self-management in young people living with HIV, ages 18 to 29. Researchers will track drinking patterns and viral load to identify modifiable targets for future interventions. The goal is to find …

This study examines whether long-term use of antiviral drugs for chronic hepatitis B is linked to kidney problems in patients who also have non-alcoholic fatty liver disease. Researchers will analyze medical records from 300 patients to compare kidney function among those taking …

This early-stage study is testing a new tablet version of the COVID-19 drug ibuzatrelvir in 18 healthy adults. Researchers want to see how much of the drug gets into the blood when taken as a whole tablet, dispersed in water, or with food. The goal is to compare the new tablet to…

Hepatitis E can cause severe liver problems in people who have had an organ transplant, and may become chronic. This study screens liver and kidney transplant patients in Guadeloupe using blood tests to measure how many carry the virus. The goal is to learn whether routine screen…

This study looks at how COVID-19 and acute surgical conditions (like appendicitis or internal bleeding) affect each other in hospitalized adults. Researchers will analyze real-world data from a large hospital to understand treatment outcomes and develop models to predict in-hospi…

This study tested two methods to encourage COVID-19 testing among people who use opioids: having friends refer others (chain referral) and using trusted community members (credible messengers). About 500 people took part. The goal was to see which method got more people tested an…

This study investigates whether telling others about an HIV diagnosis affects how consistently people take their HIV medications. Researchers believe that disclosure might lead to social support, which could improve adherence. The study follows 120 people with HIV who are already…

This study examines how consistently pregnant women with HIV take their antiretroviral medication during pregnancy and after childbirth. Using electronic monitoring devices, pill counts, and interviews, researchers track changes in adherence and record the barriers and facilitato…

This large study in Pakistan tracks 25,000 adults with hepatitis C to see how well current government-sponsored treatments work and whether the virus develops resistance. Researchers will measure cure rates, new infections, and reinfections over time. The goal is to find the best…

This study tests whether a structured face-to-face education program can improve women's knowledge about cervical cancer and their attitudes toward the HPV vaccine. One hundred women aged 18-49 in Turkey will be split into two groups: one receives the education, the other gets ro…

This study aims to estimate how many people in various US communities have or have had the SARS-CoV-2 virus. Researchers will test blood and nasal swab samples from over 26,000 adults and children living in senior facilities, attending outpatient clinics, or residing in select ne…

This completed study looked at how many people in southern Mali have ever been infected with Lassa virus and how many new infections occur each year. Over 8,500 participants aged 6 months to 99 years gave blood samples and answered questions about fevers and mouse exposure. The g…

This study developed and tested HistoMX, an automated platform that analyzes gene activity in kidney transplant biopsy samples. Researchers used over 2,400 archived biopsies from adult kidney transplant recipients to see if the platform could accurately identify different types o…

This pilot study tests a new technology called inDrop RNA-Seq to analyze individual immune cells in detail. Researchers will use it to study how healthy adults respond to the yellow fever vaccine, which is known to be very effective. The goal is to identify the specific cell type…

This study uses a nationwide health database in South Korea to track the safety of the BNT162b2 (Pfizer-BioNTech) COVID-19 vaccine in over 14 million people. Researchers will look for rare adverse events and severe COVID-19 outcomes after vaccination. The goal is to better unders…

This study investigates whether a single dose of bepirovirsen, a potential treatment for hepatitis B, affects the heart's electrical activity. Healthy adults aged 18 to 55 receive either the drug or a placebo, and their heart rhythms are monitored continuously by ECG. The goal is…

This study invites thousands of adults across the U.S. to share their health records and complete monthly surveys about anxiety, stress, and access to COVID-19 resources. Researchers aim to understand how shelter-in-place policies and containment strategies impacted people's well…

This study investigates why COVID-19 causes severe lung injury (ARDS) by looking at tiny blood vessels in the lungs. Researchers will compare 39 patients with COVID-19 ARDS to those with ARDS from other causes. They measure 'alveolar dead space' — lung areas that get air but not …

This study looks at whether simple, non-invasive blood test scores can predict the risk of developing liver cancer in people with advanced liver disease who have been cured of hepatitis C. Researchers analyzed data from 571 adults treated at a single hospital over ten years. The …

This study follows thousands of people with multiple sclerosis (MS) in the UK to see how COVID-19 affects them. Researchers track infections, hospital stays, and deaths using questionnaires and national health data. The goal is to understand the risks and outcomes for this group,…

This study tested whether using digital quiz games (Gimkit) or escape room activities helps nursing students learn more about HPV compared to traditional lectures. 90 nursing students took part, and their knowledge and literacy were measured before, after, and later. The goal is …

This study investigates how the immune system responds to COVID-19 in people with chronic lung conditions like asthma, COPD, or cystic fibrosis, compared to those without lung disease. Researchers collect blood, sputum, and nasal samples to measure immune signals and gene activit…

This study follows adults in Zambia who have both HIV and chronic hepatitis B to track liver health over up to 10 years. Researchers aim to understand how current HIV treatments affect hepatitis B and liver damage, and to identify factors that lead to serious outcomes like liver …

This study looks at cerebral small vessel disease (CSVD) — damage to tiny blood vessels in the brain that can cause memory loss and disability — in people with HIV over age 50. Researchers want to see if CSVD is linked to blood vessel problems in the eyes and kidneys, which could…

This study follows thousands of pregnant women in France who had or likely had COVID-19 during pregnancy or shortly after giving birth. Researchers track health problems in both mothers and newborns up to 12 weeks after delivery, using medical records and questionnaires about men…

This study follows people aged 70 and older who were hospitalized with severe COVID-19 for one year after their diagnosis. Researchers aim to describe how many survive and how well they recover, including physical and mental function. The goal is to better understand the long-ter…

This study investigates how often cancer patients with COVID-19 develop dangerous blood clots (venous thromboembolism). Researchers will screen participants using ultrasound and blood tests to detect clots, whether or not they cause symptoms. The goal is to understand the true ra…

This study looked at the emotional well-being of healthcare workers treating COVID-19 patients at two French hospitals. 78 staff members completed questionnaires about anxiety, depression, resilience, and empathy at different times during the pandemic. The goal was to understand …

This study followed 92 people who had mild COVID and were treated at home. Two years after their diagnosis, they answered a questionnaire by mail about any hospital visits or other health events. The goal was to learn how outpatients fare over time and find patterns that could he…

This study tested whether community health workers with lived experience of incarceration could help people recently released from jail or prison get COVID-19 tests and adopt safety measures like mask-wearing and social distancing. The program included education, on-site testing,…

This study looked at how certain enzymes called matrix metalloproteinases (MMPs) and their inhibitors relate to human papillomavirus (HPV) in cervical dysplasia and cancer. Researchers collected tissue and cell samples from 216 women with different stages of cervical lesions. The…

This study measured levels of mannose-binding lectin (MBL), a protein involved in immune response, in 97 ICU patients with severe H1N1-related acute respiratory distress syndrome (ARDS). Researchers wanted to see if higher or lower MBL levels were linked to a higher risk of death…

This study followed 380 people who had COVID-19 pneumonia for one year after they left the hospital. Researchers used heart ultrasounds, lab tests, and CT scans to check for heart problems. The goal was to understand how COVID-19 affects the heart over time.

This completed study looked at 25 young adults (ages 18-65) who had severe COVID-19 and now have thinking or memory problems. Researchers used a special PET-CT scan to see if there are changes in brain activity and how that relates to lung damage. The goal was to better understan…

This completed study looked at 378 kidney transplant patients to see if measuring antibodies against BK virus before transplant could predict whether the virus would reactivate after surgery. Researchers used a lab-made virus-like particle to test for five different BK virus type…

This study tracks how many infants in Germany receive nirsevimab, a long-acting antibody that helps protect against severe RSV disease. Researchers will survey parents of babies born during three RSV seasons (2024–2027) to measure immunization rates. The goal is to see how well t…

This study looked at how two types of exercise—high-intensity interval training (HIIT) and continuous moderate exercise—affect sleep and inflammation in 52 older adults with HIV. Participants exercised three times a week for 16 weeks. Researchers measured sleep quality through su…

This study looked at whether it's possible to create a group of people with hepatitis C in Hai Phong, Vietnam, for future research. 300 adults with active hepatitis C took part. The goal was to see how many patients could be enrolled and how much information could be collected, n…

This study looks at how certain genetic changes (mutations) in the hepatitis B virus (HBV) affect the amount of virus in the blood of people with chronic infection. Researchers analyzed blood samples from 92 patients not on antiviral treatment. They found that specific mutations …

This study followed 324 people who had close contact with a confirmed COVID-19 case to see how long they shed the virus. Participants provided nasal swabs and reported symptoms over 12 days. The goal was to understand transmission risks and help shape public health policies.

This study looked at 777 people with HIV in Brazil who failed their first treatment with tenofovir, lamivudine, and dolutegravir. Researchers wanted to understand what types of drug resistance and virus subtypes were involved. The goal is to improve treatment choices for people i…

This study looked at 37 critically ill COVID-19 patients who were moved by train from overcrowded ICUs in Paris to less busy ICUs in western France. Researchers tracked how many died, got infections, needed breathing machines, and how long they stayed in the hospital. The goal wa…

This study looked at whether ECMO, a machine that does the work of the heart and lungs, helps people with severe COVID-19 who have lung failure or heart failure. Researchers tracked 761 patients across France to see how many survived and how quickly they recovered. The goal was t…

This study looked at 21 adults with COVID-19 who had neurological symptoms like loss of smell, headache, or memory problems. Researchers used MRI scans to find brain changes linked to the virus. The goal was to better understand how COVID-19 can affect the brain, not to test a tr…

This study screens women who gave birth in four French hospitals for postpartum depression and anxiety during the COVID-19 pandemic. Participants fill out three questionnaires shortly after delivery and again about a month later. The goal is to measure how common postpartum depre…

This study looks at why certain immune cells (CD4 and CD8 T cells) remain activated in people with HIV whose viral load has been undetectable on antiretroviral therapy for at least two years. Researchers are investigating whether a common virus called cytomegalovirus (CMV) or an …

This early-stage trial tested a single injection of JL18008, a lab-made protein designed to boost immune cells, in 40 healthy adults. The main goal was to check safety and how the body handles the drug. Researchers also measured changes in immune cell counts over 56 days. This is…

This study followed 163 people with chronic inflammatory rheumatism (like rheumatoid arthritis) who had a recent COVID-19 infection. Researchers measured their antibody levels over two years to see how immunosuppressive drugs affect antibody persistence. The goal was to better un…

This completed study used advanced MRI and CT scans to look for lasting damage in the brain, heart, lungs, and liver of 206 people who had COVID-19. Researchers compared those who were hospitalized with those who were not, to understand how the virus affects organs over time. The…

This study followed 326 adults in Zambia with chronic hepatitis B for up to 5 years. Researchers tracked how the virus behaves, how many patients need treatment, and how many develop serious liver problems like cirrhosis or liver cancer. The goal was to better understand the dise…

This study looked at how often thyroid problems (specifically an underactive thyroid) occur in people with HIV. Researchers reviewed medical records of 154 HIV-positive adults who were treated at a French hospital between 2001 and 2012. The goal was to get a clearer picture of th…

This study followed 250 chronic hepatitis B patients over age 30 who had detectable virus but normal liver enzyme levels (ALT). All had never received antiviral treatment before. Researchers measured how many became virus-negative after 48 weeks of antiviral therapy, and how many…

This completed pilot study scanned the brains of 30 people who were hospitalized with COVID-19 and later reported memory, concentration, or organizational problems—often called 'brain fog.' Researchers used MRI and spectroscopy to look for changes in brain structure and chemistry…

This study looked at whether a simple saliva test can find cytomegalovirus (CMV) in children aged 3 months to 6 years. Researchers collected saliva samples from 655 children in daycares and a hospital emergency department. The goal was to see how common the virus is and to check …

This completed study looked at how the COVID-19 pandemic and social distancing impacted the mental health of 259 adults with chronic inflammatory rheumatism (like rheumatoid arthritis or ankylosing spondylitis). Researchers used questionnaires to measure stress, depression, anxie…

This study looked at how people living with HIV in rural Uganda experience stigma, including feelings of shame, loss of self-respect, and mistreatment by others. Researchers surveyed 180 adults to understand these experiences better. The goal was to gather information, not to pro…

This study looked at why some older adults (age 50 and up) maintain flu-fighting antibodies longer after getting the flu vaccine. Researchers enrolled 510 people and measured their immune response over time. The goal was to understand factors that help maintain protection, not to…

This study looked at two faster ways to test for hepatitis C in people who recently injected drugs and visit needle exchange programs. One method uses a fingerstick test with results in about an hour, and the other uses a dried blood spot sent to a lab. The goal was to see if the…

This study looked at 150 people with dengue fever to see if abdominal ultrasound findings, like gallbladder thickening or fluid in the belly, are linked to low platelet counts—a sign of severe disease. Researchers reviewed medical records and ultrasound images to find patterns th…

This study tested whether taking daily probiotic capsules for 4-5 weeks after a COVID-19 vaccine could improve the body's immune response. 138 healthy adults received either probiotics or a placebo. Researchers measured antibody levels and T-cell activity to see if probiotics mad…

This completed study looked at how often healthcare workers and first responders experienced short-term side effects (like fever or sore arm) after getting either the updated Novavax or Pfizer COVID-19 vaccine. About 660 adults who had at least one prior COVID-19 shot took part. …

This completed study followed 5 people with cystic fibrosis over two years to track COVID-19 antibodies from infection or vaccination. Researchers collected blood samples every six months to see how antibodies develop and last. The goal was to understand if people with CF have di…

This study looked at how not having enough healthy food (food insecurity) can lead to insulin resistance in people living with HIV. Researchers tested a community-based "food as medicine" program that provided healthy food and taught cooking and self-care skills. The goal was to …

This study looked at 236 kidney transplant patients to find out why some fail to develop immune protection against cytomegalovirus (CMV) in the first 45 days after surgery. Researchers reviewed medical records to compare patients who had a strong immune response with those who di…

This study looked at how the way we talk about the HPV vaccine affects university students' understanding and willingness to get vaccinated. Researchers gave 177 students either positive messages (focusing on benefits of vaccination) or negative messages (focusing on risks of not…

This study tested a more concentrated version of the long-acting HIV drug cabotegravir in 138 healthy adults. Researchers gave the injection in different ways (into muscle or under the skin) to see how the body processes it and to check for side effects. The goal was to gather sa…

This study tracked 204 patients with blood cancers or those on certain immune-suppressing treatments to see how often COVID-19 infection persists for 21 days or more. Researchers also looked for factors that make a long infection more likely. The goal was to better understand who…

This study followed 122 COVID-19 patients who were in the ICU, along with their family members, for up to a year after leaving the hospital. Researchers measured physical health, mental well-being, and how well people returned to work and daily life. The goal was to learn about t…

This study looked at whether neck muscle activity during sleep affects breathing recovery in 17 COVID-19 patients who were on ventilators in the ICU. Researchers used sleep tests and activity monitors to track sleep quality and breathing patterns. The goal was to understand why s…

This study looked at 537 patients with respiratory infection symptoms to see how the types of viruses and bacteria changed from the COVID-19 pandemic period to after it. Researchers used a special PCR test to detect multiple germs at once. The goal was to understand how pandemic …

This study looked at over 13,000 people with chronic inflammatory rheumatism or autoimmune diseases who had or were suspected to have COVID-19. Researchers tracked how many developed severe COVID-19 requiring intensive care or leading to death. They also examined risk factors lik…

This study looked at how many people with cirrhosis in French general hospitals were vaccinated against diseases like hepatitis, flu, and COVID-19. Researchers surveyed 742 patients to see if they were up to date on their shots. The goal was to find gaps in vaccination coverage s…

This study looked at how the COVID-19 lockdown changed blood sugar control and self-care in 77 young people aged 13 to 25 with type 1 diabetes. Researchers used data from a glucose monitoring platform to compare blood sugar levels before, during, and after the two-month lockdown …

This study involved over 2,500 people of all ages to find out which immune responses best predict protection against COVID-19 after vaccination. Researchers also tested whether local pharmacies could collect blood and nasal samples effectively. The goal is to improve future vacci…

This study looked at how the immune system of healthy adults aged 65-75 responds to RSV, a common cause of chest infections. Researchers gave volunteers a mild RSV infection and took blood and nose samples to find immune markers linked to protection. The goal is to use these find…

This study followed 610 adults who had heart surgery to see how often they develop postoperative delirium—a sudden state of confusion that can come and go. Researchers collected information on known risk factors like age, high blood pressure, and diabetes, and tracked outcomes su…

This study looked at whether having COVID-19 makes people more likely to develop a pulmonary embolism (a blood clot in the lungs). Researchers reviewed medical records of 347 patients who had a CT scan of their lungs. They compared those who tested positive for COVID-19 with thos…

This study from the University of Sao Paulo looked at whether measuring blood pressure during an exercise test can help predict outcomes in adults with flu-like symptoms, especially those who are unvaccinated. Researchers enrolled 62 participants and followed them for 30 days. Th…

This study collected information from 550 adults treated for COVID-19 at Methodist Health System facilities. Researchers looked at patient details, treatments given, and how well patients recovered. The goal was to better understand COVID-19 and improve future care, not to test a…

This study monitored 201 people with multiple myeloma to see how well COVID-19 vaccines and boosters work for them. Since their immune systems are weaker, researchers wanted to learn if vaccines still provide good protection. The goal was to find better ways to keep this vulnerab…

This study tested how a potential COVID-19 drug, ALG-097558, interacts with other medicines and food in 51 healthy adults. It also compared two tablet forms of the drug. The goal was to gather safety and dosing information, not to treat the disease. Results will help guide future…

This completed study in Hong Kong enrolled 977 adults aged 18-45 to understand how getting the flu vaccine year after year changes the body's immune response. Participants received either the Flublok vaccine or a saline placebo. Researchers measured antibody levels and looked for…

This study looked at how the COVID-19 pandemic and related public health measures changed asthma control in children aged 3 to 16. Researchers compared asthma control and flare-ups in 577 children during the pandemic to data from before the pandemic. The goal was to see if lockdo…

This completed study followed 829 people, including healthcare workers and a comparison group, over several years to understand how SARS-CoV-2 spreads and who gets sicker. Researchers collected swabs, blood, and saliva samples along with survey data. The goal was to identify risk…

This study offered a rapid hepatitis C test to 1,500 women aged 50-74 who were already coming in for breast cancer screening in Montpellier, France. The goal was to see how many women would agree to the extra test and how many had undiagnosed hepatitis C. Women who tested positiv…

This study looked at how different messages affect Japanese parents' willingness to get the HPV vaccine for their daughters aged 12-18. Over 1300 parents took part in surveys and experiments. The goal was to find better ways to communicate about the vaccine and increase acceptanc…

This study tested a new ultrasound technique called ARFI to measure liver stiffness in 109 people, including healthy volunteers and patients with liver conditions. The goal was to understand normal stiffness values and how they change with disease or treatment. This is an observa…

This study tested whether one-on-one support from a resource navigator helps long-term care and retirement home staff access health and wellness resources. 123 staff members took part, with some getting a navigator and others not. Researchers measured changes in wellness, burnout…

This completed study looked at how measles infection affects children's existing immunity and their ability to respond to vaccines. Researchers enrolled 264 children aged 1-15 in African regions, comparing those with acute measles to healthy controls. Participants received rabies…

This study looked at how many people in Punta Arenas, Chile, have persistent COVID-19 (long COVID) — symptoms lasting more than 4 weeks after infection. Researchers surveyed and tested 282 adults who had COVID-19, checking their physical and mental health, and looking for risk fa…

This study looked at whether lying face down (prone position) while awake can improve how air moves through the lungs in COVID-19 patients with breathing failure. Twenty adults with COVID-19 and low oxygen levels were monitored using a special imaging technique (EIT) to measure l…

This completed study looked at 172 people with and without HIV to understand why those with HIV have a higher risk of diabetes. Researchers examined fat tissue and immune cells to see if chronic immune activation in fat contributes to insulin resistance. The goal was to learn how…

This study checks on 137 COVID-19 patients who were in the ICU and used awake prone positioning (lying on their belly) while on high-flow oxygen. Researchers want to see if this technique affects quality of life and survival more than two years later. Participants answer a phone …

This study followed 241 adults hospitalized with the flu to see how the infection impacts the heart. Researchers tracked heart complications like new or worsening heart failure, heart attacks, and cardiac arrest. The goal was to better understand the link between influenza and he…

This completed study looked at 4000 COVID-19 patients in Swedish ICUs who needed a breathing machine. Researchers compared outcomes based on how soon after starting ventilation a tracheostomy was performed. The goal was to see if earlier or later timing affects how many days pati…

This study tested a 4-session program that helps HIV+ Asian Pacific American men manage their health with support from family. Nineteen men took part to see if the program was acceptable and practical. The goal was to learn if this approach could help this community better manage…

This study looked at 176 people who had COVID-19 and were having problems with smell, taste, or saliva. Researchers tested their senses and tried smell training as a way to help. The goal was to better understand these long-lasting symptoms and how to manage them.

This study looked at how the COVID-19 pandemic affected children with eating disorders and their families in Canada. Researchers tested virtual support groups led by parents who have been through similar experiences. They interviewed parents, youth, and healthcare workers to see …

This completed Phase 1 study looked at how much of the COVID-19 treatment nirmatrelvir/ritonavir (Paxlovid) gets into breast milk. Eight healthy breastfeeding women took the drug by mouth three times over two days. Researchers collected breast milk samples to measure drug levels,…

This study aimed to increase COVID-19 vaccination among African American and Latinx communities in four Michigan counties. Researchers worked with community partners to understand why some people were hesitant to get the vaccine and tested ways to encourage uptake. Over 1,100 adu…

This study surveyed over 3,400 university students and staff to learn what factors influence their decision to get a COVID-19 vaccine. Participants answered questions about vaccine effectiveness, side effects, costs, and incentives. The goal was to better understand preferences a…

This completed study looked at lung function in 42 people recovering from COVID-19. Participants inhaled a special form of xenon gas that shows up on MRI scans, allowing researchers to see how well different parts of the lungs were working. The goal was to understand how mild, mo…

This completed study gave 11 healthy adults a specially made H3N2 flu virus via nasal spray to see how their immune systems reacted. Participants were quarantined for at least 8 days in a hospital-like setting. The goal was to learn more about flu infection and immune response, n…

This study followed 201 adults with diabetes who were hospitalized for COVID-19 in Algeria. Researchers tracked their blood sugar, weight, and kidney function for up to a year after leaving the hospital. The goal was to learn how COVID-19 affects long-term diabetes control and to…

This completed study tested a small-group discussion program called SISTA-P for Black women at high risk for HIV. The program covered self-care, HIV and PrEP education, and assertiveness skills. Researchers enrolled 23 women in Washington D.C., Atlanta, and New Orleans to see if …

This study looked at how well CPAP therapy works for COVID-19 patients who have trouble breathing. Researchers collected data from 250 patients in a hospital to see how they responded to treatment. The goal was to learn more about managing severe COVID-19 in real-life settings.

This study tested simple toolkits to encourage women living with HIV in Ghana to collect their own samples for HPV testing, which can help prevent cervical cancer. About 108 women took part, and the researchers checked if they completed and returned the self-sampling kit or got a…

This study examined whether being in the ICU with COVID-19 made patients more likely to pick up dangerous, drug-resistant bacteria. Researchers tracked 368 critically ill adults to compare infection rates before and during the pandemic. The goal was to understand if COVID-19 chan…

This completed study from France compared over 1,500 ICU patients on ventilators to see if those with COVID-19 develop more lung infections than patients with influenza or no viral pneumonia. Researchers tracked cases of ventilator-associated pneumonia and tracheobronchitis. The …

This study followed 516 HIV-positive men who have sex with men over two years to track anal HPV infection and related lesions. Researchers used exams and anoscopy to see how often high-grade lesions appear or go away on their own. The goal is to gather evidence to better prevent …

This study investigates why the gut immune barrier remains damaged in people with HIV even after successful antiretroviral therapy. Researchers collected blood and intestinal biopsies from 80 participants to measure immune cells and inflammation. The goal is to understand why the…

This study looks at why HIV remains in the body even when standard treatment keeps virus levels undetectable in the blood. Researchers will take small tissue samples from the gut and blood of 30 HIV-positive adults on effective therapy. The goal is to understand how the virus per…

This study looked at how five common HIV drugs enter breast milk in 20 healthy women who were finishing breastfeeding. The goal was to find out if the drug levels could be too high (risking infant side effects) or too low (risking drug resistance if the baby gets HIV). Participan…

This study looked at whether treating hepatitis C in people who inject drugs can prevent the virus from spreading to others. Researchers analyzed health records of about 2,800 people in NHS Tayside who were tested or treated for hepatitis C. No new treatments or procedures were g…

This completed study tested whether giving families of children with long-term illnesses (like cancer, heart disease, or premature birth) a tablet computer with a special app helps them manage care at home. Researchers measured satisfaction, cost-effectiveness, and how well famil…

This study looked at how wearing surgical masks, N95 masks, and face shields affects speech perception and listening effort in operating rooms. Researchers tested 35 people with normal hearing and surveyed 184 operating room professionals. The goal was to understand communication…