SARS-COV-2 INFECTION

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

This study tests a variant-adapted COVID-19 vaccine in about 5,240 healthy adults aged 50 to 64. Half receive the vaccine, half a placebo, to see if it safely prevents COVID-19 caused by new virus variants. The goal is to find out how well the updated shot works in this age group…

This early-stage trial tests a new vaccine designed to protect against multiple coronaviruses, not just COVID-19. 51 healthy adults aged 18-55 will receive two doses to check safety and immune response. The vaccine uses a protein nanoparticle to target the virus's spike protein, …

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 study follows 1,520 mostly Black and Latino individuals and their households who had COVID-19 in New York City. Researchers will use surveys and medical records to track long-term health problems, and for 500 hospitalized patients, they will collect nasal swabs and blood sam…

This study examines tissue from people who died after a COVID-19 infection to understand why some develop Long COVID. Researchers will look for signs of inflammation, scarring, blood clots, and tissue death in the body. The goal is to learn more about the long-term effects of the…

This study follows 300 pregnant women who had respiratory infections to see if RSV can pass from mother to baby before birth. Researchers will test blood from mothers and umbilical cords for RSV antibodies and viruses. Babies will be tracked for up to 4 years to monitor respirato…

This study follows 500 children under 18 who tested positive for flu, RSV, or COVID-19. Each child takes a daily nose swab for 14 days to measure how the virus levels change over time. Researchers also check if family members get sick. The goal is to understand when kids are most…

This study intentionally exposes healthy adults aged 18-40 who have had a COVID-19 vaccine or prior infection to the Omicron BA.5 virus via nasal drops. The goal is to find the safest dose that causes a mild, controlled infection in 50-75% of participants, while monitoring side e…

This trial is studying a device that has not been approved by the U.S. FDA. The purpose is to gather information about how the device works and its safety. Participants will be monitored closely. The study sponsor and current status are not publicly available.

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

This large observational study is following about 15,000 children and young adults (ages 0-25) across the U.S. to learn more about long COVID, also called PASC. Researchers will track symptoms, infections, and health over time using surveys and medical records. The goal is to ide…