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 99 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05248412Recruiting
Study how COVID-19 long-term effects impact chronic diseases
This research looks at how the COVID-19 pandemic has affected the health and healthcare of adults with long-term conditions like diabetes, high blood pressure, heart disease, cancer, kidney disease, or chronic lung disease. It compares people who may have been affected by the pandemic and looks at their health and access to care over time.
Hong Kong, Hong KongAges 18 years+ - NCT04362150Recruiting
Study of long-term effects after COVID-19 infection
This study follows adults who had COVID-19 to learn how the illness can affect health over the long term. It may help researchers understand lasting symptoms and who is at higher risk, which could improve future care.
San Francisco, CaliforniaAges 18–100 - NCT05851859Recruiting
Breathing training for long COVID symptoms
This study tests whether a structured breathing control technique can improve symptoms of long COVID. It may help by training how you breathe, but you must meet specific health and medication criteria to join.
Saint-DenisAges 18 years+ - NCT06672692Recruiting
Study of a new test for flu, RSV, and COVID-19 in people with symptoms
This trial evaluates a new test that can detect flu A/B, RSV, and COVID-19 from a single nose swab. It is for people who are currently sick with respiratory symptoms and are either hospitalized, in the ER, visiting a clinic, or living in a long-term care facility.
Henderson, NevadaAges Any age - 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.
Little Rock, ArkansasAges 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 - NCT07149428Enrolling by invitation
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 - 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+ - 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 - NCT05057676Recruiting
Online course for autoimmune and long-lasting symptom recovery
This study tests whether an “autoimmune mastery” learning course helps people improve ongoing symptoms. It may be an option if you have multiple sclerosis, long COVID (with symptoms lasting over 6 months), or fibromyalgia.
Iowa City, IowaAges 18–100 - NCT05101213RecruitingPhase 1
T-cell treatment for certain viral infections in weakened cancer immunity
This Phase 1 study tests whether a lab-made immune cell treatment that targets viruses can be given safely in people with weakened immune systems after cancer treatment or transplant. It also looks at whether it helps control infections such as BK, adenovirus, CMV, JC virus, or COVID-19.
Houston, TexasAges 18 years+ - 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 - NCT06517706Recruiting
Studying brain health after COVID-19
This study looks at how COVID-19 affects thinking and memory. It aims to understand and help people who still have brain fog or other cognitive issues after their infection.
Nicosia, CyprusAges 25–60 - 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 - 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+ - 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+
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 99 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.