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 175 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06168019Recruiting
Flu and COVID-19 study for pregnant women in Nagpur
This study follows pregnant women in Nagpur to understand how influenza and COVID-19 affect them and their babies. Participants will be contacted twice a week for symptom checks and may provide blood samples at key points during pregnancy.
Boston, MassachusettsAges 18–50 - NCT05141058RecruitingPhase 1
T cell therapy to help prevent COVID-19 after transplant
This Phase 1 trial tests a donated immune-cell treatment (T cells) to help immunocompromised people fight or resist COVID-19 after they recently received a bone marrow or stem cell transplant. It aims to see if the treatment is safe and if it helps the body respond better to the virus.
Washington D.C., District of ColumbiaAges 2–80 - NCT02735707RecruitingPhase 3
Adaptive trial for severe pneumonia care in intensive care
This study tests ways to improve treatment for adults with severe pneumonia that lands them in the ICU, adjusting the plan as results come in. It may help your care team find better treatments for lung infection and breathing/heart support needs.
Jacksonville, FloridaAges 18 years+ - NCT07359482RecruitingPhase 3
Fluvoxamine for fatigue after covid-19
This study tests the antidepressant fluvoxamine to see if it can reduce long-term fatigue in adults who developed severe tiredness after a covid-19 infection. You may join if your fatigue started or got worse after covid and has lasted at least 3 months.
Amsterdam-ZuidoostAges 18–70 - NCT05334615Recruiting
Study of blood clot problems after COVID or flu
This study looks at blood clot–related complications after COVID-19 (and in some cases flu) in adults admitted to the hospital. It may help doctors better understand and manage these complications.
Iowa City, IowaAges 18–99 - NCT04377490Recruiting
Study of blood clots in hospitalized COVID-19 patients
This study looks at how often blood clot–related problems happen in people hospitalized with serious COVID-19 lung illness. It may help doctors understand risks and improve care for patients in the hospital.
AmiensAges 18 years+ - NCT06679140RecruitingPhase 3
Study of Ibuzatrelvir for COVID-19 in high-risk patients
This trial tests if a new medicine called ibuzatrelvir can help people with COVID-19 who have certain health risks avoid severe illness. It is for patients who cannot or choose not to take another COVID-19 pill called Paxlovid.
Huntsville, AlabamaAges 12 years+ - NCT06848309Recruiting
Immune response study for influenza or COVID-19
This study looks at how your immune system fights off flu or COVID-19. If you have a current or recent infection, or if you've been vaccinated in the past year, you may be able to join.
St Louis, MissouriAges 18–60 - NCT06667063Recruiting
Immune response study for COVID-19 and flu
This study looks at how your immune system responds to COVID-19 or the flu. It may help researchers understand these infections better, whether you are currently sick or healthy.
Wuhan, HubeiAges 18 years+ - NCT05623007Recruiting
Diet and gut bacteria study for vaccinated teens with COVID
This trial tests whether changing diet can shift gut bacteria in overweight or obese teens after COVID-19 vaccination. The goal is to see if dietary changes can affect health markers related to the gut and immune system.
Jakarta Pusat, DKI JakartaAges 12–17 - NCT05835102Recruiting
How nutrition measures may affect COVID-19 outcomes
This study looks at nutrition-related measurements to see how they may relate to how people with COVID-19 do over time. It may help doctors better predict who is at higher or lower risk based on nutrition status.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT06482138Recruiting
Why smell may change after COVID-19: a nose tissue study
This study looks at why some people lose or change their sense of smell after COVID-19. Researchers will take a tiny sample of tissue from your nose to study the cells and molecules involved.
Brussels, Brussels CapitalAges 18–70 - NCT04983823Recruiting
Study aims to improve long-term heart effects after COVID
This trial looks at how persistent heart-related changes after a past COVID infection may be affected by study treatments. It mainly seeks people who are stable enough for follow-up visits and heart imaging, and who are not already on the specific heart medications required.
Melbourne, VictoriaAges 50–85 - NCT06099795Recruiting
Breath test vs. swab test for COVID-19
This study checks if a new breath test (eBAM-CoV) can accurately detect COVID-19 compared to the usual nose/throat swab test (RT-PCR). If you have symptoms or were exposed and are getting tested anyway, you may be able to help by also providing a breath sample.
NîmesAges 18 years+ - NCT06008860RecruitingPhase 4
Astepro nasal spray for early COVID-19
This trial tests whether Astepro nasal spray can help people with mild or no COVID-19 symptoms recover faster. If you have tested positive and are vaccinated, you may qualify.
Chicago, IllinoisAges 18 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 - NCT07123727RecruitingPhase 2
Testing Anktiva for long COVID symptoms
This study tests if the drug Anktiva can help people with long COVID. To join, you must have had at least one confirmed COVID-19 infection and now have lasting symptoms that started or got worse after that infection.
El Segundo, CaliforniaAges 18–70 - NCT05582512Recruiting
Study of long-term effects in children after COVID-19
This study looks at what long-term health effects children may have after getting COVID-19, and how those effects change over time. You may be asked to share health information and possibly complete a scan that can’t be done if certain metal is present.
Taipei, Chung Cheng DistrictAges Up to 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 - NCT07147517Recruiting
Tracking respiratory viruses in your community and home
This study tracks how respiratory viruses spread in the community and within households. It involves testing and collecting samples from people who are sick or healthy, to help better understand and prevent outbreaks.
La Jolla, CaliforniaAges Any age - NCT04327570Recruiting
Study of immune responses in hospitalized COVID-19 patients
This study looks closely at how your immune system responds during COVID-19. It may help researchers better understand why COVID-19 varies from person to person and how to improve future care.
LeuvenAges 18 years+ - NCT05233605Recruiting
Study sedative effects on ongoing brain inflammation after severe COVID
This study looks at whether a specific ICU sedative (dexmedetomidine) affects long-term inflammation in the brain after severe COVID with ARDS and deep sedation. It uses PET and MRI scans and special tracers to understand persistent inflammation and why it may last.
ParisAges 18–74 - NCT06006884Recruiting
Understanding long-term lung effects after COVID-19
This study looks at why some people develop long-term lung problems after COVID-19. It compares people who had severe COVID-19 and were hospitalized to those who had mild infections and recovered at home.
Rochester, MinnesotaAges 18 years+ - NCT06920628RecruitingPhase 1
Brain scan study for long COVID neurological symptoms
This study uses a special PET scan to look at brain inflammation in people with neurological symptoms after COVID-19. It aims to understand how inflammation might be linked to ongoing problems like brain fog or memory issues.
Bethesda, MarylandAges 18–70
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Common questions
- Are there clinical trials for covid-19 infection?
- Yes. Clin2 currently lists 175 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.