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 194 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - 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 - NCT05126589Recruiting
COVID-19 respiratory sample testing using virus genetic clues
This study looks at respiratory samples from adults after COVID-19 to better understand what viruses may be present and how they change over time. If you live in Hong Kong and can consent, you may be able to help researchers learn from your samples and symptoms.
Hong Kong, Hong KongAges 18 years+ - NCT04299724RecruitingPhase 1
COVID-19 Vaccine Safety and Immune Response Study
This early-stage trial tests a new COVID-19 vaccine designed to teach your immune system to fight the virus. It is for people who have just tested positive for COVID-19 and are otherwise healthy.
Shenzhen, GuangdongAges 6 months–80 years - 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 - NCT05689034RecruitingPhase 2/Phase 3
Azvudine for early COVID-19 in higher-risk adults
This trial studies azvudine in adults with early COVID-19 symptoms to see if it can prevent the illness from getting severe. You may qualify if you’re within about 5 days of symptom start and have risk factors for worsening disease.
Beijing, Beijing MunicipalityAges 18–120 - NCT04276896RecruitingPhase 1/Phase 2
COVID-19 Synthetic Minigene Vaccine Trial
This trial tests a new type of COVID-19 vaccine called a synthetic minigene vaccine. It is for people with a recent COVID-19 infection (within the past 7 days) to see if the vaccine is safe and helps the immune system fight the virus.
Shenzhen, GuangdongAges 6 months–80 years - NCT05384561Recruiting
Training your sense of smell to help after COVID
This trial studies whether structured smell (olfactory) training can improve ongoing smell problems after COVID-19. It may help people whose sense of smell hasn’t fully returned long after the infection.
Trois-Rivières, QuebecAges 18 years+ - NCT05787327RecruitingPhase 2
Chinese Herbal Medicine for COVID-19
This trial tests a combination of two traditional Chinese herbal formulas (Yinqiaosan and Maxingganshitang) to see if they can help people with mild to moderate COVID-19 recover faster. It's for adults who have had symptoms for no more than 3 days and have been diagnosed with a specific Chinese medicine pattern.
Hong KongAges 18–65 - NCT04491292Recruiting
COVID-19 impact survey for MD Anderson workers
This study asks MD Anderson employees about how the COVID-19 pandemic affected their mental and emotional well-being. Your answers may help the team understand workplace needs during and after major public health events.
Houston, TexasAges 18 years+ - 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+ - NCT03808922RecruitingPhase 3
DAS181 treatment for COVID-19 lung infection in immune-compromised adults
This Phase 3 trial tests DAS181 to treat lower lung (chest) viral infections in people with weakened immune systems, including a COVID-19 subgroup. It may help by targeting certain viruses in the lungs, but joining depends on your oxygen needs, recent diagnosis, and other safety factors.
Duarte, CaliforniaAges Any age - NCT04169542Recruiting
Study on how COVID-19 affected costs for breast surgery patients
This study asks people with breast cancer who are having breast surgery about how COVID-19 affected their out-of-pocket costs, work income, and job stability. Your answers may help improve support for patients during public health emergencies.
Conroe, TexasAges 18 years+ - NCT04320732Recruiting
Study COVID-19 spread at home and work
This study looks at what factors make COVID-19 spread more easily in the community and workplace. It may help researchers understand how to reduce transmission in everyday settings.
OsloAges 18 years+ - NCT04359836Recruiting
Study of gut bacteria in early COVID-19
This trial studies how gut bacteria (“gut flora”) may affect COVID-19 after a recent infection. If you test positive for COVID-19 soon enough, the study may help researchers understand why some people get better faster or have different symptoms.
Ventura, CaliforniaAges 18 years+ - NCT04367857Recruiting
Study of COVID antibody levels in healthcare workers
This study measures how many healthcare workers have COVID antibodies (proof of past infection or immune response). Results may help estimate how widespread COVID exposure has been among hospital staff.
New York, New YorkAges 18 years+ - 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+ - NCT04442191RecruitingPhase 2
Convalescent plasma for hospitalized COVID-19 patients over 40
This trial tests whether donated “recovered patient” plasma (antibodies from people who had COVID-19) can improve outcomes for people hospitalized with COVID-19. It focuses on patients early in their illness who need a small amount of oxygen.
Chicago, IllinoisAges 40 years+ - NCT04448145Recruiting
Study why COVID lasts after recovery
This study looks at what factors may make COVID-19 symptoms or infection effects last after someone has recovered. It also collects certain body samples to better understand why this persistence happens.
New York, New YorkAges 7 years+ - NCT04474301Recruiting
Quality of life check for people with melanoma during COVID-19
This study looks at how people with melanoma are feeling during the COVID-19 pandemic, including quality of life. You may be asked to share information through surveys or study contact so the researchers can understand needs and concerns.
Houston, TexasAges Any age - 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 - NCT04551378Recruiting
Study of how COVID affected young people with cancer
This study looks at how the COVID-19 pandemic affected the experiences of teenagers and young adults with cancer, including people who finished treatment. It may help improve support for cancer patients and survivors during public health crises.
Houston, TexasAges 18–39 - NCT04582903Recruiting
Send-in sample collection study for immune response to respiratory viruses
This study collects sent-in samples to better understand how your immune system responds during a COVID-19–like illness and after you recover. It may help researchers learn why some people get sick and others stay uninfected, and how immune protection works over time.
Rockville, MarylandAges 1 day–99 years - NCT04679584Recruiting
Study of long-term effects after COVID-19 infection
This study looks at how COVID-19 can affect health and quality of life over the long term. It may help researchers understand symptoms that can last and what changes people experience after recovery.
Würzburg, BavariaAges 18 years+
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COVID-19 Infection trials by city
Studies with a site in or near these metro areas.
COVID-19 Infection trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for covid-19 infection?
- Yes. Clin2 currently lists 194 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.