COVID19

This study tests whether immune cells (called T cells) from a family member who recovered from COVID-19 can safely help treat people with mild-to-moderate COVID-19. About 50 hospitalized adults will receive these cells. The main goal is to check for side effects and see if the tr…

This study tests several potential COVID-19 treatments in adults to find safe and effective doses. It uses a flexible master protocol to add new drugs quickly. About 600 participants with mild to severe COVID-19 will join. The goal is to speed up finding treatments that reduce sy…

This study tests whether a large dose of vitamin D3 can lower the risk of death within 28 days for critically ill adults who are severely deficient in vitamin D. Researchers aim to enroll 2,400 patients in intensive care units. Earlier research suggested a strong survival benefit…

This study tests whether a single infusion of concentrated antibodies against COVID-19 can help adults with early, mild COVID-19 recover faster and avoid serious illness. About 820 participants at higher risk (age 55+ or with weakened immune systems) will receive either the antib…

This study tests a program to help parents in the Bronx who are feeling stressed after the COVID-19 pandemic. The program aims to reduce parental stress and improve how parents support their children. About 360 primary caregivers will take part.

This study tests whether hyperbaric oxygen therapy (breathing pure oxygen in a pressurized chamber) can improve thinking, memory, and other symptoms in people with long COVID. About 91 adults who have had cognitive problems for at least 3 months after a COVID infection will recei…

This study aims to understand the long-term heart and lung problems that may occur after a COVID-19 infection. Researchers will follow 1,500 adults who had COVID-19, including those who were in the ICU, hospitalized, or not hospitalized, as well as a control group without COVID-1…

This study follows 2,000 pregnant women who received monoclonal antibodies or antiviral drugs for COVID-19 to see how these treatments affect pregnancy, newborns, and infant development up to 12 months old. Researchers compare their outcomes with those of pregnant women who did n…

This study reviews hospital records of 3,000 patients to see if those who had a flu shot, took blood pressure drugs (ACE inhibitors or ARBs), antihistamines, or amantadine had better COVID-19 outcomes. Researchers want to know if these treatments are linked to fewer deaths or sho…

This study follows 6,000 pregnant women—some vaccinated against COVID-19, some not—to compare pregnancy outcomes, newborn health, and infant development up to 12 months. Researchers will track risks like miscarriage, birth defects, and growth. No vaccine or treatment is given; it…

This study follows 650 adults in Quebec to learn about the short- and long-term health problems caused by COVID-19, including damage to the heart, lungs, kidneys, and other organs. Researchers will compare people who had mild, severe, or no COVID-19, as well as those with flu-lik…

This study looks at how the COVID-19 pandemic impacted people who had surgery in Stockholm, Sweden. Researchers will track up to 300,000 patients to see if death rates, complications, or hospital stays changed during the pandemic. The goal is to understand the pandemic's effects,…