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
- NCT05650905Recruiting
Eye and blood-vessel function study after COVID-19
This study measures how well the nerves in your retina and the tiny blood vessels in your eye “couple” (work together) after COVID-19. It may help researchers understand eye-related effects of COVID-19 and long COVID, and how these processes change over time.
Vienna, State of ViennaAges 18 years+ - NCT06968442Recruiting
Obesity and severe COVID-19 study
This study looks at how obesity affects the body's response to severe COVID-19. It compares people with obesity to healthy-weight healthcare workers to understand differences in the immune system.
Rotterdam, South HollandAges 18–65 - NCT07051967Recruiting
Comparing recovery after ICU for pregnant and non-pregnant COVID-19 patients
This study looks at how COVID-19 and respiratory failure affect recovery after intensive care. It compares pregnant patients to non-pregnant patients to learn more about the long-term effects.
BerlinAges 18 years+ - NCT04733729Recruiting
COVID-19 in blood cancer patients
This study looks at COVID-19 in people who have (or have had) blood cancers and are positive for SARS‑CoV‑2. It may help doctors understand how COVID-19 affects people with blood cancers and guide care.
BresciaAges 18–99 - NCT07013474RecruitingPhase 3
Study of ibuzatrelvir for immunocompromised adults with COVID-19
This trial tests an investigational medicine called ibuzatrelvir for adults with COVID-19 who have a weakened immune system. The study aims to see if it helps them recover and avoid severe illness.
Canoga Park, CaliforniaAges 18 years+ - NCT06960928RecruitingPhase 3
Low dose sirolimus for long COVID
This trial tests if a low dose of sirolimus, a medicine that calms the immune system, can help people with long COVID. If you have had long COVID symptoms for at least 6 months, like severe fatigue, brain fog, or chest pain, you may be able to join.
New York, New YorkAges 18 years+ - NCT06928506Recruiting
Study of Hi-OxSR for Long COVID treatment
This study tests whether a treatment called Hi-OxSR can help with lingering symptoms of Long COVID, especially problems with thinking and memory. You may be eligible if you've had COVID-19 at least 3 months ago and still have ongoing symptoms that affect your thinking.
Edmonton, AlbertaAges 18 years+ - NCT06871293Recruiting
Long Covid recovery: rehab with coaching
This study tests a program of rehab exercises and memory/thinking activities, along with coaching messages, to help people with Long Covid feel better and function in daily life. You may qualify if you had Covid, have high blood pressure or diabetes, and still have symptoms like fatigue or trouble thinking for at least 4 weeks.
Bogotá, Bogotá DCAges 18–80 - NCT06821100RecruitingPhase 1
Thymalfasin to Boost COVID-19 Vaccine Response in Older Adults
This trial tests whether a drug called thymalfasin (thymosin alpha 1) can help older adults (65+) get a stronger immune response from their COVID-19 booster shot. It may be especially helpful for those whose immune systems have weakened with age.
Houston, TexasAges 65–100 - NCT05866952Recruiting
Breathing and blood-flow testing in long-COVID symptoms
This trial studies how the lungs’ breathing (airflow) and blood flow may be off in people with long-COVID symptoms like tiredness, shortness of breath, or trouble exercising. It may help researchers understand what’s driving symptoms and what kinds of abnormalities could be targeted.
Boston, MassachusettsAges 18–99 - NCT06744660Recruiting
Testing a new COVID-19 test for people with symptoms
This study is testing a new, easy-to-use COVID-19 test called the Metrix COVID-19 Test. If you have a fever or other cold or flu-like symptoms today, you may help confirm if this test works well.
Birmingham, AlabamaAges 2 years+ - NCT06156176Recruiting
Exercise for COVID-19 fatigue: a feasibility study
This study tests whether a personalized exercise program can help reduce fatigue after a COVID-19 infection. You'll work with a coach over video calls to see if gentle activity can improve your energy levels.
London, OntarioAges 18 years+ - NCT06703034Recruiting
Studying the immune response in people who had severe or mild COVID-19
This study looks at how the body's immune system reacted to COVID-19 in people who had either severe or mild cases. The goal is to learn more about a specific part of the immune response (called IFN-I) to better understand the disease.
LyonAges 18 years+ - NCT06631287RecruitingPhase 3
Testing baricitinib for persistent long COVID symptoms
This trial tests whether the anti-inflammatory drug baricitinib can improve persistent long COVID symptoms like brain fog, fatigue, and shortness of breath. You may qualify if you had COVID-19 at least 6 months ago and still have bothersome symptoms that affect your daily life.
Tucson, ArizonaAges 18 years+ - NCT06601998Recruiting
Heart health after severe pneumonia
This study looks at how heart health changes in people who have recovered from severe pneumonia, including COVID-19. It compares survivors to healthy people and those with heart risk factors.
AlexandroupoliAges 18 years+ - NCT06608849Recruiting
Long-term health effects after COVID-19
This study looks at how COVID-19 may affect the lungs, heart, and kidneys in the months or years after the infection. It compares three groups: people who never had COVID, people who had COVID but recovered without organ problems, and people who had organ problems during COVID. The goal is to understand what long-term complications might arise.
AthensAges 18 years+ - NCT06402318Recruiting
Quick breath test for COVID, flu, and RSV
This study tests a breathalyzer device that quickly detects COVID-19, flu, and RSV from your breath. If you are already being tested for these viruses, you may join to see if this new method works as well as the usual swab test.
Fort Sam Houston, TexasAges 18–89 - NCT06355232RecruitingPhase 1
Oral vaccine for COVID-19 and flu
This study tests an experimental oral vaccine that may protect against both COVID-19 and the flu. Researchers want to see if it's safe and how the body responds.
Adelaide, South AustraliaAges 18 years+ - NCT06381739RecruitingPhase 2
New inhaled COVID-19 booster vaccine trial
This trial tests a next-generation COVID-19 vaccine given as an inhaled mist. It is for adults who have already had at least 3 doses of an mRNA COVID vaccine and are looking for a potentially stronger or longer-lasting immune response.
Halifax, Nova ScotiaAges 18–65 - NCT06086379Enrolling by invitation
Cognitive rehab therapy for COVID-related thinking problems in Veterans
This study tests a cognitive rehabilitation therapy designed to help Veterans who have memory and thinking problems after COVID-19. It aims to improve daily mental function and quality of life.
San Diego, CaliforniaAges 18 years+ - NCT06045338Recruiting
Mind-body program for long COVID symptoms
This trial tests a mind-body intervention to help people with ongoing long COVID symptoms like pain, fatigue, or brain fog. If you've had COVID-19 and have had symptoms at least 3 days a week for 3 months, this study might help.
Boston, MassachusettsAges 18–65 - NCT05926505RecruitingPhase 2/Phase 3
Anakinra for lingering symptoms after COVID-19
This Phase 2/3 trial studies whether anakinra can improve ongoing (post-acute) COVID-19 symptoms lasting for more than two months. It mainly looks for better safety and symptom improvement in people with specific inflammation and lung-related findings.
JenaAges 18 years+ - NCT05855330RecruitingPhase 2
Arginine treatment for kids hospitalized with COVID-19
This Phase 2 trial tests whether replacing the body’s arginine (an amino acid) can improve outcomes for children and young adults hospitalized with COVID-19. It may help the immune response, but you must meet several safety criteria to join.
Atlanta, GeorgiaAges 3–21 - NCT04525716Recruiting
Study of how COVID-19 affected surgery patients
This study looks at how the COVID-19 pandemic changed outcomes and experiences for people who had surgery in Stockholm during the study period. It may help hospitals prepare better plans for patients during future outbreaks.
StockholmAges Any age
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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.