Clinical trials
COVID-19 Infection clinical trials
Below are recruiting covid-19 infection clinical trials, each written for real people, not researchers. We’re tracking 177 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07400848Recruiting
Symptoms and recovery after COVID-19 vaccine
This study looks at people who developed new, long-lasting symptoms after a COVID-19 vaccine. It aims to understand their symptoms, do lab tests, and see how they recover over time.
BernAges 18 years+ - NCT07356570Recruiting
Post-COVID care tracking study for long-term symptoms
This study follows people with lasting or complex COVID-19 symptoms who are already in a specialized care program. It aims to better understand and improve recovery after COVID.
Pierre-BéniteAges 18 years+ - NCT06739720RecruitingPhase 2/Phase 3
Test of CP003 for chronic fatigue or long COVID tiredness
This study tests a new supplement called CP003 to see if it helps reduce tiredness in people with chronic fatigue syndrome or long COVID fatigue.
Hong KongAges 40–60 - NCT04318366Recruiting
Study of COVID-19 samples and how patients respond to treatment
This trial collects and studies COVID-19 test results and other patient information to better predict treatment response and outcomes. Your sample(s) help researchers understand who may improve, worsen, or need different care.
Milan, LombardyAges 18 years+ - NCT07739446Enrolling by invitation
Do face masks help prevent catching the flu or COVID-19?
This trial looks at whether wearing surgical masks when out in public can reduce your chances of getting the flu or COVID-19. If you join, you'll be assigned by chance to either wear a mask outside for 3-4 months or not wear one, and you'll be tested if you get sick.
ChibaAges 20–49 - NCT05946512Recruiting
Yoga breathing plus lung MRI measurements for post-COVID symptoms
This study uses breathing exercises from yoga and MRI (a scan of the body) measurements to see how well yoga breathing can improve ongoing breathing symptoms after COVID-19. It also compares results in a few other specific groups and healthy volunteers.
Innsbruck, TyrolAges 18–50 - NCT05293366Recruiting
Long COVID study testing supportive care for multiple body systems
This study looks at people who have recovered from COVID-19 but still deal with long-term problems. It aims to better understand (and potentially help with) ongoing issues that can affect hormones, metabolism, mood, muscles, the heart, lungs, and skin.
NaplesAges 18 years+ - NCT04335773Recruiting
Study of COVID-19 in hospitalized children
This study looks at children (ages 0 to 18) who are in the hospital with suspected COVID-19. It aims to understand what factors affect outcomes and how the immune system responds.
LørenskogAges Up to 18 years - NCT07397455RecruitingPhase 1
COVID-19 Omicron Human Challenge Study
This study is a 'human challenge' trial where healthy volunteers who have been vaccinated and have low antibody levels are deliberately exposed to a newer Omicron variant of COVID-19. The goal is to learn how the virus spreads and how to test treatments or vaccines.
LondonAges 18–50 - 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+ - 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+ - 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+ - 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+ - NCT07743580RecruitingPhase 3
Secutrelvir for covid-19 patients at high risk
This trial tests a new antiviral pill, secutrelvir, for people with mild to moderate covid-19 who are at higher risk of getting seriously ill. It aims to see if the drug can prevent hospitalization or severe disease.
Coral Gables, FloridaAges 12 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 - 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 - NCT06693362RecruitingPhase 1
Stem cell therapy for severe viral pneumonia
This trial tests whether injecting stem cells from the womb's blood supply can help treat severe viral pneumonia. It aims to improve recovery for people who are very sick and need hospital care.
Shanghai, Shanghai MunicipalityAges 18–85 - NCT07529197Recruiting
Study of Immunoadsorption Treatment for Post-Infectious ME/CFS
This study observes how a blood-cleaning treatment called immunoadsorption works in patients with ME/CFS (severe fatigue condition) who have specific immune markers. Researchers will track whether this treatment helps reduce symptoms and improve daily functioning.
Berlin, State of BerlinAges 18–65 - NCT06821126RecruitingPhase 1/Phase 2
Nasal spray COVID-19 vaccine booster study for healthy adults
This study tests a new nasal spray COVID-19 vaccine to see how it compares to an mRNA booster shot. It is for healthy adults who have already had at least 3 doses of an mRNA COVID-19 vaccine (or 2 doses plus a confirmed COVID infection) and are looking for a needle-free booster option.
DijonAges 18–60 - NCT04424992Recruiting
Observing hospitalized adults with COVID-19 lung infection
This study follows adults who are hospitalized with COVID-19 in the lungs. The goal is to better understand how COVID-19 behaves in the hospital over time.
MonzaAges 18 years+ - NCT06585241RecruitingPhase 4
Study of Updated COVID-19 Vaccines for High-Risk Groups
This trial tests updated COVID-19 vaccines designed to better protect against current variants. It's for people who have already been vaccinated and are at higher risk for severe COVID-19.
Atlanta, GeorgiaAges 6 months+ - NCT05534009Recruiting
Study of healthcare workers’ COVID infection and vaccine history
This study gathers information about healthcare workers (adults) and tracks your past COVID-19 infection and vaccination history. It may help researchers understand how COVID affects healthcare workers and how vaccines relate to infection outcomes.
DüsseldorfAges 18 years+ - 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+ - 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+
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Common questions
- Are there clinical trials for covid-19 infection?
- Yes. Clin2 currently lists 177 recruiting covid-19 infection 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 infection 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 infection 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.