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 195 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04706390Recruiting
Study compares immune response after COVID infection vs vaccination
This study looks at how your immune system responds after natural COVID-19 infection compared with after COVID vaccination. It may help researchers understand how well different experiences train the body’s defenses.
BergenAges 20–100 - NCT04887623Recruiting
Blood and breathing marker tracking in hospitalized COVID-19
This study follows hospitalized people with recent COVID-19 to see how infection and inflammation markers change over time. It may help doctors better understand what’s happening in the body as breathing problems develop and treatments are given.
Hradec KrálovéAges 18–90 - NCT05022446Recruiting
Survey study on how COVID-19 affected lung procedures
This study is a survey sent to U.S. lung doctors to understand how COVID-19 changed the way certain lung procedures are done. Your answers could help improve future care and planning during respiratory outbreaks.
Houston, TexasAges Any age - NCT05164744Recruiting
MRI study of heart tissue changes after COVID-19
This study uses a heart MRI to look for leftover (healing) changes in heart tissue after COVID-19. It may help researchers better understand what ongoing heart effects can happen after infection.
Brooklyn, New YorkAges 18 years+ - NCT05197621Recruiting
Study how COVID-19 affects pregnancy and newborn outcomes
This study looks at how COVID-19 and COVID vaccination during pregnancy may affect mothers and newborns. Your team will collect health information around delivery to understand what outcomes are most common.
Baltimore, MarylandAges 14–55 - NCT05218356RecruitingPhase 2
Codivir trial for hospitalized moderate COVID-19
This trial tests whether Codivir can help people hospitalized with moderate COVID-19 recover better than a placebo (inactive pill). It will compare outcomes while participants receive standard hospital care.
Paulo Prata, Barretos/SP/BRAAges 18–75 - NCT05242159Recruiting
COVID-19 antibody study in hospitalized patients
This research study examines a specific type of antibody (anti-annexin A2) that may develop during COVID-19 infection. By studying hospitalized COVID-19 patients, researchers hope to understand whether these antibodies are common and what role they might play in COVID-19 illness.
AmiensAges 18 years+ - NCT05246098Recruiting
Rehabilitation program study for young and adult ICU COVID/respiratory survivors
This study looks at whether a rehabilitation approach improves recovery outcomes for people who survived COVID-19 or a serious breathing infection and needed ICU/PICU care. It may help those still dealing with physical or functional problems after their critical illness.
Calgary, AlbertaAges Any age - NCT05387304Recruiting
Follow-up study for people with COVID infection in Shanghai
This study follows people in Shanghai who have tested positive for the COVID virus, even if they have no symptoms yet. It helps doctors understand what happens after infection and in people who later get a diagnosis.
ShanghaiAges Any age - NCT05553743Recruiting
Study of donated breast milk and how it affects child health
This study looks at breast milk donated for research and how it may relate to infant and child health. If you’re an adult who is breastfeeding and can donate extra milk, you may be able to participate.
San Diego, CaliforniaAges 18 years+ - NCT05562505Recruiting
Using ECMO to help you breathe, sit up, and come off a ventilator
This trial tests whether a heart-lung machine called venovenous ECMO can help people with severe breathing failure get less sedated, get extubated (have the breathing tube removed), and start moving. It’s for certain adults who are on a ventilator for a short time and have specific oxygenation problems.
Darlinghurst, New South WalesAges 18–65 - NCT05571735Recruiting
COVID vaccine immune response study in people with tuberculosis
This study measures how strongly your immune system responds to COVID-19 vaccines. It includes people with newly diagnosed tuberculosis and a healthier comparison group, aiming to understand vaccine immune effects and safety.
Mae Ramat, Changwat TakAges 18 years+ - 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+ - NCT05774093Recruiting
Study how COVID immunity affects reinfection risk
This study looks at how well COVID-19 protection (immune barrier) holds up over time and how likely people are to get reinfected. It may help researchers understand who is more at risk after prior infection and why.
Guangzhou, GuangdongAges Any age - 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 - 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 - NCT05886816RecruitingPhase 2
Mitoquinone pills to prevent COVID-19 after risky exposure
This trial tests whether an oral medication (mitoquinone/mitoquinol) taken after a high-risk COVID-19 exposure can help prevent you from becoming sick. It is designed for people who currently have no symptoms but had a significant exposure to someone with confirmed COVID-19.
Dallas, TexasAges 18–65 - NCT05892549Recruiting
Phone-based monitoring to detect worsening COVID-19 early
This study tests whether a phone app that listens to your voice and breathing can spot signs your COVID-19 is getting worse sooner. If you qualify, you’ll use the COVOICE app on your mobile phone for monitoring.
Saint-MandéAges 18 years+ - 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+ - 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 - NCT06082518Recruiting
Hyperbaric oxygen for long COVID recovery
This trial tests if hyperbaric oxygen therapy, which involves breathing pure oxygen in a pressurized room, can help people with post-COVID syndrome feel better. It focuses on those dealing with ongoing fatigue and brain fog or anxiety.
Toronto, OntarioAges 18 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+ - NCT06168032Recruiting
COVID-19 vaccine for lung cancer patients
This trial is testing how well the COVID-19 vaccine works for people with lung cancer to prevent another infection. It also looks at certain biomarkers in your blood that might help predict your body's immune response.
BeijingAges 18 years+ - NCT06183424Recruiting
Brain stimulation for COVID-19 recovery
This trial tests a gentle brain stimulation method called tDCS to help people recover after COVID-19 infection. If you are an adult who recently had COVID-19 and is now testing negative, this study might help improve lingering symptoms.
AntalyaAges 18–50
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Common questions
- Are there clinical trials for covid-19 infection?
- Yes. Clin2 currently lists 195 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.