Clinical trials
Long Covid-19 clinical trials
Below are recruiting long covid-19 clinical trials, each written for real people, not researchers. We’re tracking 94 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05587894RecruitingPhase 2
Testing optimized COVID antiviral treatment in immunocompromised adults
This study tests the best combination and timing of antiviral medicines for people with COVID-19 who have weakened immune systems. It aims to improve outcomes in people with mild to moderate illness.
Bordeaux, BordeauxAges 16 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+ - NCT06511050RecruitingPhase 1/Phase 2
Testing Lumbrokinase for Long COVID, Lyme, and Chronic Fatigue
This trial tests a supplement called Lumbrokinase (derived from earthworms) to see if it helps reduce symptoms in people with Long COVID, post-treatment Lyme disease syndrome, or ME/CFS. It may benefit those whose daily life is significantly affected by these conditions.
New York, New YorkAges 18 years+ - NCT04806620Recruiting
Online app study for brain inflammation lifestyle data
This study uses a digital platform (app/website) to collect lifestyle and symptom information to better understand brain inflammation. You may qualify if you have certain conditions like Long COVID, migraines, autoimmune disease, inflammatory gut issues, mood disorders, or if you are a healthy comparison person.
Delafield, WisconsinAges 2 years+ - NCT06355258RecruitingPhase 1
Troxerutin to prevent blood clots in COVID-19 patients
This trial tests if the drug troxerutin can prevent dangerous blood clots in adults hospitalized with mild or severe COVID-19. If you have COVID-19 and are not already on blood thinners or at high risk for bleeding, you may be able to join.
Shaoxing, ZhejiangAges 18 years+ - NCT04736732Recruiting
Post-COVID research clinic for adults in Quebec
This study invites adults in Quebec to complete questionnaires and possibly follow-up checks about past COVID-19 infection or symptoms. It may help researchers better understand ongoing effects after COVID, or compare people with different COVID test histories.
Montreal, QuebecAges 18–100 - NCT05787379Recruiting
Care program for Veterans with long-lasting COVID symptoms
This trial tests a care approach for Veterans who have long-COVID—aiming to improve symptoms and follow-up care through participating VA clinicians. You may be included if you are a Veteran with long-COVID and can be seen by a participating clinician soon, unless you had severe COVID requiring ICU care.
East Orange, New JerseyAges Any age - NCT07400848Recruiting
Symptoms and recovery after COVID-19 vaccine
This study looks at people who developed new, long-lasting symptoms after a COVID-19 vaccine. It aims to understand their symptoms, do lab tests, and see how they recover over time.
BernAges 18 years+ - NCT05638724Recruiting
Long COVID health registry for people of all ages
This study builds a health registry to learn how long COVID affects children, teens, and adults over time. It may help by improving understanding of symptoms and care, even if it does not test a new drug.
Munich, BavariaAges Any age - NCT05946512Recruiting
Yoga breathing plus lung MRI measurements for post-COVID symptoms
This study uses breathing exercises from yoga and MRI (a scan of the body) measurements to see how well yoga breathing can improve ongoing breathing symptoms after COVID-19. It also compares results in a few other specific groups and healthy volunteers.
Innsbruck, TyrolAges 18–50 - NCT04381936RecruitingPhase 3
Testing COVID-19 or pneumonia treatments in hospitalized patients
This trial tests different treatments for serious lung infections in people who are already in the hospital. It may help doctors learn which treatment works best for recovery and survival when pneumonia-like illness is suspected.
BrusselsAges birth+ - NCT06850350Recruiting
Long COVID and Thinking & Walking
This study looks at how Long COVID affects thinking and movement skills. If you had COVID-19 more than 3 months ago and could walk before you got sick, you may be able to help researchers understand these lasting symptoms.
Chicago, IllinoisAges 18 years+ - NCT07149428Recruiting
Deep study of smell loss causes using brain scans
This study uses brain imaging and electrical recordings to understand the brain's role in smell loss from any cause—like COVID, sinus problems, or chemotherapy. You may be eligible if you have any degree of smell loss lasting under a year.
Bethesda, MarylandAges 18–99 - NCT06932237Recruiting
Immune causes of long COVID brain symptoms in veterans
This study is for veterans who have long COVID with brain or nerve symptoms. It looks at how the immune system may be causing these ongoing symptoms.
Portland, OregonAges 18–80 - NCT05973084Recruiting
COVID spread study in Malawi households and vaccine recipients
This study tracks how COVID-19 spreads and causes illness in real households in Blantyre, Malawi, and compares groups after infection or vaccination. If you qualify, you’ll do follow-up testing and visits for several months.
Boston, MassachusettsAges 5–75 - NCT06585241RecruitingPhase 4
Study of Updated COVID-19 Vaccines for High-Risk Groups
This trial tests updated COVID-19 vaccines designed to better protect against current variants. It's for people who have already been vaccinated and are at higher risk for severe COVID-19.
Atlanta, GeorgiaAges 6 months+ - NCT06577467Recruiting
Studying leftover virus after covid recovery
This study looks for signs of leftover SARS-CoV-2 virus in people who have fully recovered from COVID-19, including those with ongoing neurological symptoms (like brain fog, fatigue, or nerve pain). It aims to understand why some people have long-lasting symptoms after infection.
Bethesda, MarylandAges 18–110 - NCT06095284Enrolling by invitation
Antiseizure drug use in nursing homes before and after COVID-19
This study looks at how antiseizure medications are prescribed to long-term nursing home residents and how those prescriptions changed during the COVID-19 pandemic. It helps understand if prescribing patterns affected residents' health.
Richmond, VirginiaAges 21 years+ - NCT04579588Recruiting
Study flu vaccine immunity in people after COVID-19
This study looks at how well your immune system (your body’s infection-fighting system) responds to a flu vaccine after you’ve had COVID-19. It may help doctors understand why some people have different protection after vaccines.
Palo Alto, CaliforniaAges 9–64 - NCT00571389Recruiting
Collecting blood cells from people with cancer or COVID-19
This study collects blood cells using a special blood-draw procedure called leukapheresis (for some participants) and other samples. It aims to better understand cancer and immune-related cells, which may help researchers design or improve future treatments.
Huntersville, North CarolinaAges 5 years+ - NCT07783074Recruiting
Fatigue study using digital outcomes in multiple sclerosis and long COVID
This study is investigating fatigue using digital outcomes in people with multiple sclerosis, long COVID, and healthy volunteers. Participants must own a smartphone, be fluent in German or English, and be willing to provide informed consent. Exclusion criteria include having taken certain medications recently, being pregnant or lactating, or having additional health conditions that could affect fatigue or the autonomic nervous system.
Basel, BaselAges 18–65 - NCT07743580RecruitingPhase 3
Secutrelvir for covid-19 patients at high risk
This trial tests a new antiviral pill, secutrelvir, for people with mild to moderate covid-19 who are at higher risk of getting seriously ill. It aims to see if the drug can prevent hospitalization or severe disease.
Coral Gables, FloridaAges 12 years+
Hear when a new Long Covid-19 trial opens
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Common questions
- Are there clinical trials for long covid-19?
- Yes. Clin2 currently lists 94 recruiting long covid-19 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 long covid-19 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 long covid-19 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.