Clinical trials
Cohort Studies clinical trials
Below are recruiting cohort studies clinical trials, each written for real people, not researchers. We’re tracking 562 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07399210Recruiting
Detecting lung nodule cancer with a blood test
This study aims to see if a blood test can tell if a lung nodule is cancerous or not. It may help doctors avoid unnecessary procedures.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07295483Recruiting
Long COVID 4-Year Follow-Up Study
This study follows up with people who already took part in the BioICOPER study to see how long COVID symptoms and health evolve over 4 years. If you were in that earlier study, you may join this one to help researchers learn more about long-term recovery.
Salamanca, SalamancaAges 18 years+ - NCT06282315RecruitingPhase 3
Safety of a new deworming pill for children in Ghana and Kenya
This trial tests how safe and effective a combined albendazole and ivermectin pill is for treating parasitic infections. It is for school-aged children in specific areas of Ghana and Kenya.
Accra, AccraAges 5–17 - NCT06067295Recruiting
Long-term study of advanced prostate cancer
This study follows men with advanced prostate cancer that has spread to other parts of the body. It aims to learn more about how the disease and treatments affect patients over time, so doctors can improve care.
Los Angeles, CaliforniaAges 18 years+ - NCT06898762Recruiting
National study on inflammatory heart disease for patients with symptoms
This study is creating a national registry to learn more about inflammatory myocardial disease (inflammation of the heart muscle). If you have symptoms like chest pain, shortness of breath, palpitations, or certain test results, you may be eligible to join and help advance research.
Murcia, MurciaAges 18 years+ - NCT06846762Recruiting
DNA/RNA co-testing for advanced lung cancer that has stopped responding to first treatment
This study is for people with advanced non-small cell lung cancer whose tumors do not have certain genetic changes (called driver mutations) and whose first treatment did not work well or caused bad side effects within 6 months. The researchers want to use a special test (DNA/RNA-NGS) to look for hidden genetic alterations that might explain why the cancer didn't respond.
Shanghai, Shanghai MunicipalityAges Any age - NCT07181317Recruiting
Long-term study of young women after heart attack
This study continues to follow young women who had a heart attack to learn more about their long-term health. You can join if you already took part in the earlier WAMIF study.
ParisAges 18–60 - NCT05906316Recruiting
Study of new treatment plan for MAC lung infection
This study follows people with a newly diagnosed MAC lung infection (a specific type of mycobacterial disease) and tests how they do on the standard three-drug treatment plan. It may help researchers better understand outcomes and safety for this condition.
Portland, OregonAges 18 years+ - NCT07546682Recruiting
Propel Sinus Implant Study in Japan
This study tests a steroid-releasing implant placed during sinus surgery to help prevent inflammation and improve healing in patients with chronic sinus infections. If you're having sinus surgery in Japan, this trial may track how well the implant works for you.
AsahikawaAges 18 years+ - NCT07178925Recruiting
Long-term study of antiphospholipid syndrome
This trial follows patients with antiphospholipid syndrome over time to learn more about the condition. It may help researchers understand how the disease progresses and how to better manage it.
RouenAges 18–75 - NCT06774053Recruiting
The SPECTRA study for transgender and gender diverse people
This study follows transgender and gender diverse people of all ages 16 and older to learn more about their health and well-being over time. It is for those who have a diagnosis of gender incongruence and are either starting, continuing, or have stopped gender affirming therapy.
BaselAges 16 years+ - NCT06454344Recruiting
Sleep and childhood experiences study in young adults
This study looks at how sleep is affected by tough childhood experiences. It tests whether changing sleep patterns can help young adults who have had these experiences and currently have poor sleep.
Iowa City, IowaAges 18–29 - NCT07672522Recruiting
Infections and the aging immune system in older adults
This study is looking at how infections and the aging immune system affect older adults. It compares people with an infection to healthy volunteers to understand how the body fights germs as we age.
Shanghai, Shanghai MunicipalityAges 60 years+ - NCT07543757Recruiting
Blood test to help decide if a prostate biopsy is needed
This study tests a new blood test (Proclarix) that may help doctors decide if a prostate biopsy is needed. It is for men with a slightly elevated PSA who are already considering a biopsy.
San Diego, CaliforniaAges 40–75 - NCT06963489Recruiting
Stroke biobank study for large vessel blockage
This study collects blood and tissue samples from people who had a stroke caused by a blockage in a large artery in the brain. The goal is to learn more about the condition by studying these samples over time.
Wuhu, AnhuiAges Any age - NCT06542718Recruiting
Studying glucose patterns in Asian women with gestational diabetes
This study monitors blood sugar levels during pregnancy in overweight Asian women to better understand gestational diabetes. It uses a continuous glucose monitor to track patterns and may help improve care for mothers and babies.
SingaporeAges 21–45 - NCT03139786Recruiting
Heart valve follow-up study for bicuspid aorta patients
This study follows patients who have a bicuspid aortic valve—a heart valve with two leaflets instead of three. Researchers track how this condition changes over time to better understand its long-term effects and help guide future care.
Amiens, PicardieAges 18 years+ - NCT07382986Recruiting
COPD care in China
This study is a long-term patient registry collecting health information from people with COPD (chronic obstructive pulmonary disease) in China. Joining means you will receive regular check-ups and your doctor can track your condition over time, which may help improve management of your disease.
Hebi, HenanAges 40–85 - NCT06297993Recruiting
Global study following adults with PSC
This study follows adults with primary sclerosing cholangitis (PSC) over time to learn more about the condition. It is observational, meaning no new treatments are tested—just regular checkups and data collection to better understand PSC.
Sacramento, CaliforniaAges 18–75 - NCT05021029Enrolling by invitation
Observational study of pre-cancerous stomach conditions
This study follows patients with pre-cancerous stomach conditions to learn more about how they progress. By collecting health information over time, researchers hope to improve early detection and treatment of stomach cancer.
Sacramento, CaliforniaAges 18 years+ - NCT06827678Recruiting
Study of Alzheimer’s disease using brain scans in China
This study uses brain imaging to understand early changes in Alzheimer's disease. It may help people with or without memory problems learn more about their condition and support future treatments.
ShanghaiAges 45–90 - NCT06417801Recruiting
Study of ESR1 gene changes in blood in advanced breast cancer
This study looks for changes in the ESR1 gene in the blood of people with advanced HR+/HER2- breast cancer. It compares these blood test results with tumor tissue results to learn more about the cancer.
Salvador, Estado de BahiaAges 18–100 - NCT05967299RecruitingPhase 1
IV ZMA001 study in healthy adults
This Phase 1 trial tests how an IV medicine called ZMA001 behaves in healthy people and checks for early safety. It may help future studies of the drug by confirming dosing and effects in people before testing in patients.
Bethesda, MarylandAges 18–60 - NCT06327295RecruitingPhase 2
Testing a new treatment for mild to moderate toenail fungus
This trial tests an investigational medication called ATB1651 for people with toenail fungus (onychomycosis). If you have a fungal infection covering 20% to 60% of one or both big toenails and are in generally good health, you may be able to join.
ChristchurchAges 18–70
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Common questions
- Are there clinical trials for cohort studies?
- Yes. Clin2 currently lists 562 recruiting cohort studies 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 cohort studies 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 cohort studies 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.