Clinical trials
COVID clinical trials
Below are recruiting covid clinical trials, each written for real people, not researchers. We’re tracking 369 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04444128Recruiting
Testing heart risk assessment using MRI T1 mapping
This study checks whether an MRI heart scan measure called “T1 mapping” can improve how doctors estimate heart disease risk in everyday people. You may join if you’re an adult and can have a contrast-enhanced heart MRI safely.
Frankfurt am Main, HesseAges 18 years+ - NCT04445285RecruitingPhase 2
Test drops to thin lung mucus in severe COVID-19
This Phase 2 trial tests rhDNase (a medication similar to Pulmozyme) to improve outcomes and reduce the risk of death in people with severe COVID-19 causing breathing failure. It’s meant for adults who need high-flow oxygen or a breathing machine.
Mobile, AlabamaAges 18 years+ - NCT04510025Recruiting
MRI study of whole-body effects of moderate to severe COVID
This study looks at how COVID-19 affects multiple organs in the body, using MRI scans and related measurements. It may help researchers better understand who is at risk for longer-lasting or widespread effects after COVID.
OxfordAges 18–100 - NCT04527315Recruiting
COVID-19 survivors health registry and follow-up scans
This study enrolls adults who had COVID-19 to track longer-term health effects and match them with people who did not have COVID-19. Depending on eligibility, you may be asked to complete questionnaires and possibly have MRI or X-ray scans.
New York, New YorkAges 18 years+ - NCT04558450Recruiting
Study how COVID-19 affects blood vessel stiffness and aging
This study looks at how having COVID-19 may affect your blood vessels over the following months. It may help doctors understand long-term “vascular aging” and who is most at risk, based on how sick you were during your COVID illness.
NancyAges 18 years+ - NCT04579471Recruiting
Study COVID-19 infection in people after organ or bone marrow transplant
This study looks at how common COVID-19 (SARS-CoV-2) infection is and what outcomes happen in people who have had a transplant. It may help doctors understand what to expect and how to better support transplant patients during COVID-19.
Leuven, Vlaams BrabantAges 18–90 - 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 - NCT04586413Recruiting
Help build and study a quality-of-life tool after COVID-19
This study will collect information from adults who had COVID-19 (confirmed by a test or diagnosis) to develop and improve a questionnaire about life after infection. Your answers may help researchers better track symptoms and quality of life over time.
OxfordAges 18 years+ - NCT04606732Recruiting
Tracking heart risk changes after COVID-19 hospitalization
This study looks at how COVID-19 affects heart health over time in people who were hospitalized. Your results may help doctors predict prognosis and understand who is at higher heart risk after recovery.
BolognaAges 18 years+ - NCT04611243Recruiting
Follow-up study after hospital recovery from COVID-19
This study checks how well your lungs work and how much exercise you can do after you’ve been discharged from the hospital for COVID-19. It also measures blood (serology) results to understand recovery and possible immune response changes over time.
Hong KongAges 18 years+ - NCT04647656Recruiting
Hyperbaric oxygen for lingering post-COVID brain fog
This study tests whether breathing pure oxygen in a pressurized chamber (hyperbaric oxygen therapy) can improve long-lasting post-COVID problems with thinking and memory. It may help if your brain symptoms have lasted at least 3 months and affect your daily life.
ẔerifinAges 18 years+ - NCT04666246Recruiting
Studying breathing effort in people with COVID-19 breathing failure
This study looks at how hard people with COVID-19 are working to breathe when they have serious breathing trouble but are not yet fully on a breathing machine. The results may help doctors better understand breathing support needs and improve care.
ModenaAges 18–80 - NCT04678193Recruiting
Study to track who may get hospitalized from COVID
This trial studies COVID risk to predict who is more likely to need hospital care and to better understand how COVID spreads. It may help future patients by improving risk assessment using test results and risk scores.
Phoenix, ArizonaAges 18 years+ - NCT04705766Recruiting
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+ - NCT04746066Recruiting
Study of thalassemia, sickle cell, and inherited anemia with COVID
This observational study looks at people with thalassemia, sickle cell disease, or other inherited anemia who have COVID-19. It aims to learn how COVID affects these conditions and may help improve care planning.
GenovaAges Any age - NCT04775134Recruiting
Checking leftover COVID virus after recovery
This study looks for whether small amounts of the COVID virus are still present in the lungs after infection. It may help doctors understand how long the virus can remain and inform future care, using tissue removed during a medically needed lung procedure.
LeuvenAges 18 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+ - NCT04890483Recruiting
Brain stimulation to ease pain and fatigue after COVID
This study tests whether a noninvasive brain stimulation treatment can reduce fatigue and body pains after COVID in people with autoimmune diseases. It may help symptoms by changing brain activity without surgery.
São PauloAges 18–80 - 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 - NCT07224490RecruitingPhase 1
Kisspeptin test for brain function after COVID-19
This study tests how the brain's reproductive hormone system works after a COVID-19 infection using a substance called kisspeptin. It may help explain symptoms like changes in periods or hormone levels in people with long COVID.
Boston, MassachusettsAges 18–60 - NCT07536308RecruitingPhase 1
Nasal COVID-19 booster vaccine safety trial
This trial tests a new nasal spray COVID-19 booster vaccine. It aims to see if the vaccine is safe and produces a strong immune response when given through the nose and inhaled, in people who have already been vaccinated.
Decatur, GeorgiaAges 18–64 - 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 - 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 - 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
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Common questions
- Are there clinical trials for covid?
- Yes. Clin2 currently lists 369 recruiting covid 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 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 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.