Clinical trials
Cohort Studies clinical trials
Below are recruiting cohort studies clinical trials, each written for real people, not researchers. We’re tracking 561 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03044847Enrolling by invitation
Long-term study of COPD in adults in China
This study follows people with COPD (chronic lung disease) over many years to better understand the condition. It may help doctors learn what factors predict worsening over time.
Beijing, Beijing MunicipalityAges 40–75 - NCT03041805Recruiting
Check whether a clot-risk score predicts recovery after vein surgery
This study looks at how well a clot-risk score (Caprini score) relates to blood clot checks and outcomes after varicose vein surgery. You may be asked to have an ultrasound scan a few weeks after your operation and be followed for about 4 weeks.
MoscowAges 18 years+ - NCT02738645Recruiting
Study of pneumonia patients in the ICU
This study follows people who are admitted to a respiratory intensive care unit (a special ICU for breathing problems) because they have pneumonia. It may help doctors better understand pneumonia in ICU patients and improve care in the future.
Beijing, Beijing MunicipalityAges 18 years+ - NCT02693548Recruiting
Study of families with familial high cholesterol
This is a study that follows people with a genetic form of very high cholesterol (familial hypercholesterolemia) and their close relatives. It aims to better understand this condition in real families and how it affects health over time.
Madrid, MadridAges 15 years+ - NCT02936791Recruiting
Study of early inherited kidney cysts and healthy volunteers
This observational study follows people early in autosomal dominant polycystic kidney disease (ADPKD) and also some healthy volunteers to learn how the kidneys work over time. It may help researchers understand early changes, which could guide future treatments.
Chicago, IllinoisAges 4–35 - NCT02040714Enrolling by invitation
Study of current treatments for Perthes hip disease
This study follows children (and teens) with Legg-Calvé-Perthes disease to learn about how today’s treatments work in real life. It may help doctors choose the best next steps for your child’s hip health.
Birmingham, AlabamaAges 1–18 - NCT01460264Enrolling by invitation
A heart-and-lung health study following adults over time
This study follows adults with heart-and-lung health information over time to understand how these conditions change. It may help researchers find patterns that could guide better care in the future.
LundAges 45–75 - NCT01747291Recruiting
Study of incomplete atypical bone fractures
This study follows people who have had a specific type of bone injury called an atypical fracture, or a similar fracture after little or no trauma. It aims to better understand who is affected and how these injuries behave over time.
Hamilton, OntarioAges 20–100 - NCT01808937Recruiting
Study registry for morphea and storing DNA samples
This study is building a registry (a group record) of people with morphea and collecting DNA samples to help researchers learn more about the condition. It may help by improving understanding of causes, patterns, and future treatments.
Dallas, TexasAges Up to 90 years - NCT00327860Recruiting
Kidney disease in children study that follows patients over time
This is a long-term study that watches children and young adults with chronic kidney disease to understand how the illness changes and to improve care. You may be asked to complete regular visits and questionnaires, and your kidney function will be tracked over time.
Kansas City, MissouriAges 6 months–22 years - NCT04621396Recruiting
Birth cohort study following families in Manitoba
This study follows pregnant people and their children over time in Manitoba. It aims to better understand diabetes during pregnancy and how it may affect children’s health.
Winnipeg, ManitobaAges Up to 18 years - NCT07761676Recruiting
Health checkup trends study for regular participants
This study follows healthy adults who get regular checkups at a specific hospital. It looks at health trends over time to understand wellness in this group, which could help improve preventive care.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04074538Recruiting
Colorectal cancer study to help researchers learn patterns
This study is collecting information from people with newly diagnosed colon or rectal cancer, to better understand the disease and support future research. It may help you and others by improving how colorectal cancer is studied and potentially treated over time.
Hangzhou, ZhejiangAges 18 years+ - NCT06126692Recruiting
Asthma study comparing different biologic treatments
This study looks at how well different biologic treatments work for people with severe or mild-to-moderate asthma, and compares them to healthy volunteers. It aims to find which treatments work best for different asthma types.
CopenhagenAges Any age - NCT06680011Recruiting
Study of diagnostic markers for neurosyphilis
This study looks for better ways to diagnose neurosyphilis, an infection that affects the brain and spinal cord. Researchers will compare test results from people with neurosyphilis, people with syphilis but no brain involvement, and healthy volunteers.
Shanghai, Shanghai MunicipalityAges 18–65 - NCT05824845Recruiting
Join a study collecting information for hip or knee replacement care
This study asks people in the UK who are getting their first hip or knee replacement to answer questionnaires and let researchers use linked health data. The goal is to improve understanding of outcomes and help set up future studies for better care.
AshingtonAges 18 years+ - NCT07364175Recruiting
Weight loss drug study for young adults with high blood pressure
This trial tests if the weight loss medication tirzepatide can help young adults (18–40) with obesity and high blood pressure lower their blood pressure. It compares standard care to weight loss with tirzepatide.
Cambridge, CambridgeshireAges 18–40 - NCT03987633Recruiting
Study links health records and samples to understand health gaps
This study asks people affected by a specific illness (or their family member) to share saliva (and sometimes blood) and answer health and quality-of-life questions. The goal is to better understand and reduce health inequality by matching new information with medical records.
Wolverhampton, West MidlandsAges 6 years+ - NCT07247838Recruiting
Gut bacteria changes in first-time stroke patients
This study looks at how gut bacteria change right after a first-time ischemic stroke. It aims to understand if these changes are linked to recovery or other health factors.
Nantong, JiangsuAges 18 years+ - NCT06887205Recruiting
Lymphatic reconstruction after melanoma surgery: a pilot study
This trial tests a surgical procedure called immediate lymphatic reconstruction for melanoma patients who need lymph node removal. It aims to reduce swelling and improve recovery.
Houston, TexasAges 18 years+ - NCT06860269RecruitingPhase 2/Phase 3
New immune therapy and stem cell transplant for acute lymphoblastic leukemia
This study tests adding new immunotherapy drugs and possibly a stem cell transplant to the first treatment for adults with acute lymphoblastic leukemia (ALL). The goal is to see if these approaches help people live longer without the cancer coming back.
ParisAges 18–65 - NCT05437965Recruiting
Registry study for repeat coronary blockages after stents
This study follows adults who have fast, unexplained re-narrowing of a coronary stent, to better understand what causes it and how to monitor it. You may help by allowing the study team to collect medical information over time.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06339398Recruiting
Exercise dose and brain health in Parkinson's
This study looks at how different amounts of physical exercise affect brain chemicals, movement symptoms, and brain connections in people with Parkinson's disease. You would walk and do exercises while researchers track changes over time.
Cassino, FrosinoneAges 30–80 - NCT04352036Recruiting
Study cohort of people with acute hidrosadenitis
This study follows people diagnosed with acute hidrosadenitis over time to better understand the condition. Joining may help researchers learn how patients do in real life and what may be needed to improve care.
AngersAges Any age
Hear when a new Cohort Studies trial opens
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Common questions
- Are there clinical trials for cohort studies?
- Yes. Clin2 currently lists 561 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.