Clinical trials
COVID-19 clinical trials
Below are recruiting covid-19 clinical trials, each written for real people, not researchers. We’re tracking 273 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05796505Recruiting
Community outreach to improve vaccine acceptance in prisons
This study tests community engagement approaches to help people in prison feel more comfortable accepting vaccines. It will focus on people in regular housing areas, and it may help increase vaccine willingness through trusted local outreach.
Schwenksville, PennsylvaniaAges 18 years+ - NCT05769023Enrolling by invitation
Pilot test targeting HIV prevention for people who inject drugs
This pilot program studies where HIV risk is highest and uses that information to decide how prevention efforts should be delivered. If you’ve used opioids recently and you inject drugs, you may be invited to participate to help reduce HIV risk.
Baltimore, MarylandAges 18 years+ - NCT05566483Recruiting
Study long COVID physiology and cardiopulmonary rehab effects
This study looks at how long COVID affects the body and whether cardiopulmonary rehabilitation improves quality of life and physical function. It may help participants better understand their symptoms and see if a structured rehab program improves daily abilities.
Aurora, ColoradoAges 18 years+ - NCT05639465Recruiting
Prevent mental health symptoms in kids after disasters
This study tests an intervention to help children who were affected by the COVID-19 pandemic and another major disaster avoid later mental health symptoms. It may help families by offering support before problems get worse.
Bradenton, FloridaAges 8–14 - NCT05610423Enrolling by invitation
Study of heart inflammation after COVID-19 vaccination in Norway
This study looks at people who may have developed myocarditis or pericarditis (inflammation of the heart muscle or the lining around the heart) shortly after a COVID-19 vaccine. It compares their health records to vaccination records to understand who is affected and when, which may help improve future care.
OsloAges 5 years+ - NCT05589376Enrolling by invitation
Healthy people registry study for you and me
This study sets up a registry of healthy people who can answer surveys and assessments. It helps researchers understand health and how people feel over time, even if you’re not being treated for a specific illness.
Merced, CaliforniaAges 2 years+ - NCT04392401Recruiting
Study immune changes in adults during ICU stay for COVID-19
This study looks at how your immune system responds while you’re in the intensive care unit (ICU) for COVID-19. Researchers will collect samples early in the ICU stay to better understand immune changes during the illness.
BronAges 18 years+ - NCT05336565Recruiting
COVID-era heart illness patterns in adults with cardiovascular disease
This study looks at how often heart problems happened in adults with cardiovascular disease during the COVID-19 pandemic period. It may help researchers understand what factors during the pandemic affected heart health.
TomskAges 18 years+ - NCT05266222Recruiting
Collecting respiratory virus samples for a research library
This study collects samples from people who have or might have a cold/respiratory virus, then stores them for future research. It may help researchers better understand respiratory germs and develop better treatments.
Bethesda, MarylandAges 3 years+ - NCT05269277Enrolling by invitation
Study ways to help nurses stay working during COVID-19
This study looks at what hospital teams can do to help nurses stay in their jobs during the ongoing COVID-19 period. It will gather information from nurses and adult hospital staff to better understand what helps and what makes work harder.
Loveland, ColoradoAges Any age - NCT05141058RecruitingPhase 1
T cell therapy to help prevent COVID-19 after transplant
This Phase 1 trial tests a donated immune-cell treatment (T cells) to help immunocompromised people fight or resist COVID-19 after they recently received a bone marrow or stem cell transplant. It aims to see if the treatment is safe and if it helps the body respond better to the virus.
Washington D.C., District of ColumbiaAges 2–80 - NCT05046002Recruiting
COVID vaccine heart inflammation symptom registry
This study is a “registry,” meaning it collects medical information about people who develop possible heart inflammation after a COVID-19 vaccine. It may help doctors understand how often this happens and which findings are linked to it.
Ottawa, OntarioAges 5 years+ - NCT04959734Recruiting
Study of COVID-19 effects on emergency visits for infant lung infections
This study looks at how the COVID-19 era changed emergency department visits for young children with breathing problems, such as bronchiolitis or first-time viral wheeze. It may help doctors understand trends in these illnesses and plan better care during outbreaks.
LeicesterAges birth–2 years - NCT04952870Recruiting
Study breathing treatment and early immunity in newborns after COVID
This study looks at how newborns’ bodies are affected by COVID-19 around birth and whether a breathing support treatment (inhaled nitric oxide) changes outcomes. It also compares COVID-exposed babies and a similar group of babies without COVID who are not receiving the breathing treatment.
LilleAges Up to 3 months - NCT04956445Recruiting
Donate blood and mucus samples to study virus treatments
This study collects samples from people who currently have, recently had, or may have been exposed to common respiratory viruses. The goal is to use these samples to develop and test future countermeasures (like treatments) against COVID-19 and other viruses.
New Orleans, LouisianaAges 6 months–120 years - NCT04896606RecruitingPhase 1/Phase 2
Matched donor immune therapy for mild to moderate COVID-19
This early-phase study tests immune cells from a matched family donor (made to target the COVID-19 virus) to see if they can help people with mild-to-moderate COVID-19 who are hospitalized and at higher risk for getting sicker. It aims to check safety first and also look for signs of benefit.
Valhalla, New YorkAges 18–65 - NCT04806620Recruiting
Online app study for brain inflammation lifestyle data
This study uses a digital platform (app/website) to collect lifestyle and symptom information to better understand brain inflammation. You may qualify if you have certain conditions like Long COVID, migraines, autoimmune disease, inflammatory gut issues, mood disorders, or if you are a healthy comparison person.
Delafield, WisconsinAges 2 years+ - NCT04815096RecruitingPhase 2
PET scan study of immune activity after COVID-19
This Phase 2 study uses a special PET scan to look at how active your immune system is after a recent COVID-19 infection. The goal is to understand what the immune response looks like and whether this imaging approach could help guide care.
San Francisco, CaliforniaAges 18 years+ - NCT04705766Enrolling by invitation
Study kidney injury after recent COVID infection
This study looks at how COVID can affect the kidneys soon after infection. You may be able to participate if you recently tested positive for COVID and have not had kidney replacement treatments.
San Francisco, CaliforniaAges 18 years+ - NCT04652115RecruitingPhase 2
Defibrotide for severe COVID-19 in adults
This trial tests defibrotide to see if it improves outcomes in people hospitalized with severe COVID-19. You may be considered if you have confirmed infection, abnormal chest imaging, and meet specific severity and safety requirements.
Boston, MassachusettsAges 18–100 - NCT04579588Recruiting
Study flu vaccine immunity in people after COVID-19
This study looks at how well your immune system (your body’s infection-fighting system) responds to a flu vaccine after you’ve had COVID-19. It may help doctors understand why some people have different protection after vaccines.
Palo Alto, CaliforniaAges 9–64 - NCT04391816Recruiting
Study of how alcohol use changed during the COVID-19 pandemic
This study follows people over time to understand how the COVID-19 pandemic affected alcohol use and related health or behaviors. You may help by answering short surveys by phone or online on a regular schedule.
Bethesda, MarylandAges 18–100 - NCT04381936RecruitingPhase 3
Testing COVID-19 or pneumonia treatments in hospitalized patients
This trial tests different treatments for serious lung infections in people who are already in the hospital. It may help doctors learn which treatment works best for recovery and survival when pneumonia-like illness is suspected.
BrusselsAges birth+ - NCT04429594Recruiting
Study tracking COVID-19 infection rates in the public
This study looks at how often SARS-CoV-2 (the virus that causes COVID-19) infection happens in people who may have been exposed in the community. It may help researchers understand infection rates and patterns in the general population.
NiceAges 18 years+
Hear when a new COVID-19 trial opens
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Common questions
- Are there clinical trials for covid-19?
- Yes. Clin2 currently lists 273 recruiting covid-19 studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a covid-19 trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a covid-19 trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.