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
- NCT05780450Recruiting
Brain stimulation for long covid headaches and pain
This trial tests a safe, non-invasive brain stimulation technique (transcranial direct current stimulation, or tDCS) to see if it can reduce persistent headaches and chronic pain in people with long covid. If you have ongoing pain after a confirmed covid infection, this could offer a new way to find relief.
Paiporta, ValenciaAges 16 years+ - NCT07861542RecruitingPhase 4
COVID-19 booster vaccine for older adults and high-risk people
This trial tests an updated COVID-19 booster vaccine designed to improve protection for people who are older or have health conditions that increase their risk of severe COVID-19. If you qualify, you would receive one dose of the study vaccine and be monitored for safety and immune response.
Fair Oaks, CaliforniaAges 12 years+ - NCT04494724RecruitingPhase 2
Clazakizumab for hospitalized COVID-19 patients
This trial tests a drug called clazakizumab, which may reduce harmful inflammation in the lungs of people hospitalized with COVID-19. It aims to see if the drug can help patients recover better than a placebo.
Houston, TexasAges 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+ - 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+ - 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+ - 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 - 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 - 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+ - 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 - 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 - NCT07781501Recruiting
Study of long-term effects of covid-19
This study looks at the long-term effects of COVID-19, sometimes called Long COVID. By studying saliva and health info, researchers hope to understand why some people have lasting symptoms.
Chapel Hill, North CarolinaAges 18–75 - NCT07746544RecruitingPhase 3
Secutrelvir for treating covid-19 in adolescents and adults
This study tests an experimental oral antiviral, secutrelvir, for people with mild to moderate COVID-19 who are not sick enough to need hospital care. The medicine aims to reduce symptoms and help you recover faster.
Multiple LocationsAges 12–74 - 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 - NCT07610967Recruiting
Light therapy for respiratory infection protection
This study tests a mouthpiece that uses light to help the immune system fight respiratory infections. It may reduce the chance of getting sick.
Nellis Air Force Base, NevadaAges 18 years+ - 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+ - NCT07445971RecruitingPhase 1
Study of MDX2301 for healthy adults and those at higher risk for severe COVID-19
This trial tests an investigational drug called MDX2301 to see if it's safe in healthy adults and in adults who are at higher risk for severe COVID-19. Higher risk means you have conditions like asthma, diabetes, heart disease, or other listed health issues.
Las Vegas, NevadaAges 18–64 - 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+ - NCT06434701Recruiting
Severe COVID-19 in children in emergency rooms
This trial is studying children who are very sick from COVID-19 or have a related condition called MIS-C. It aims to understand how severe COVID-19 affects children and improve care.
AfulaAges birth–16 years - NCT06881160Recruiting
Micro-RNA and COVID-19 study
This trial studies tiny molecules in your body called micro-RNAs (miRNAs) that may help understand how COVID-19 affects people. Participants donate blood and swab samples to see if these molecules can predict how sick someone might get.
Roma, RMAges 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 - NCT07154199Recruiting
Ultrasound for brain fog after COVID-19
This trial tests if gentle ultrasound waves to the head can help clear brain fog that lasts after a COVID-19 infection. If you've had COVID and still feel mentally slow or forgetful, this treatment might help your thinking get sharper.
Beijing, Beijing MunicipalityAges 18–75 - NCT07140094Recruiting
Long COVID Relief Through Learning Mindfulness
This study tests whether a mindfulness program can help ease long COVID symptoms. You will learn simple mindfulness techniques and see if they improve your daily life.
New York, New YorkAges 18 years+ - NCT07128095Recruiting
Wellness and nutrition check during COVID-19
This study looks at how exercise, nutrition, and overall wellness have been affected during the COVID-19 pandemic. It may help you understand how to improve your health habits.
Bloomington, IndianaAges 18–75
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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 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.