Clinical trials
Observational Study clinical trials
Below are recruiting observational study clinical trials, each written for real people, not researchers. We’re tracking 839 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07078136Recruiting
AI study for upper GI tumor diagnosis
This study uses artificial intelligence to help diagnose tumors in the upper stomach or esophagus. It looks at images from endoscopy and ultrasound to improve how doctors identify these growths.
Wuhan, HubeiAges 18 years+ - NCT07080437Recruiting
Immunotherapy and chemoradiation for elderly esophageal cancer patients
This study looks at how safe and effective a combination of immunotherapy (a treatment that helps your immune system fight cancer) and standard chemotherapy plus radiation is for older adults (70+) with a type of esophageal cancer called squamous cell carcinoma who cannot have surgery or choose not to.
Chongqing, Chongqing MunicipalityAges 70 years+ - NCT07091604Recruiting
Looking at skin color differences in healthy people and patients
This study looks at natural differences in skin color. Researchers measure skin pigmentation in healthy volunteers and people with skin conditions to better understand variation.
Leiden, LeidenAges 18 years+ - NCT07094737Recruiting
Heart rehab study for coronary disease or heart failure
This study tracks how well heart rehabilitation works for people with coronary artery disease or heart failure. It aims to improve future care by learning from your experience.
MilanAges 18 years+ - NCT07096180Recruiting
Integrative Chinese and Western Medicine for Breast Cancer
This study looks at combining traditional Chinese medicine with Western medical care for women with breast cancer. It aims to see how integrative approaches might help people undergoing standard treatments.
New Taipei CityAges 18 years+ - NCT07099417Recruiting
Screening for heart valve disease with a single-lead ECG
This study tests whether a simple single-lead heart monitor (ECG) can spot problems with your heart valves. It may be a quick, easy way to screen for valve disease.
MoscowAges 18 years+ - NCT07106931Recruiting
Early arthritis: identifying the cause quickly
This trial aims to quickly identify the type of arthritis in people with recent joint swelling (less than 12 weeks). It may help doctors start the right treatment sooner.
OsloAges 18 years+ - NCT07111663Recruiting
Study of people with isolated dystonia
This study observes individuals diagnosed with isolated (primary) dystonia to learn more about the condition. It may help researchers understand how dystonia affects people over time.
Scottsdale, ArizonaAges 12–65 - NCT07112937Recruiting
Effect of rectal cancer treatment on tumor cells in blood
This study looks at how different treatments for rectal cancer affect tumor cells that travel in your blood. It is an observational study, meaning you will not receive any new treatment, but your blood will be tested to help doctors learn more.
OstravaAges 18 years+ - NCT07123038Recruiting
Long-term safety study for gene-modified Treg therapy recipients
This study follows people who previously received a gene-modified Treg (regulatory T cell) therapy from Sonoma Biotherapeutics. It checks for long-term safety and does not involve any new treatment.
San Francisco, CaliforniaAges 18–71 - NCT07136935Recruiting
Integrating traditional Chinese and Western medicine for frail elderly recovery
This study tests a care model that combines traditional Chinese and Western medicine to help frail elderly patients recover function after a hospital stay for an acute illness. If you or a loved one is over 75, living with conditions like Parkinson's, COPD, mild dementia, or kidney disease, and recently lost strength or ability to do daily tasks, this may offer a supportive approach to regain independence.
TaichungAges 20 years+ - NCT07139626Recruiting
Biomarker study for heart and kidney health
This study looks for blood markers that may predict heart and kidney problems in people with stable chronic heart failure. If you have heart failure and are willing to give blood samples, you may help researchers better understand and manage this condition.
Nantong, JiangsuAges 18–75 - NCT07143266Recruiting
Sleep study for people with pituitary and hypothalamus conditions
This study looks at sleep problems in people whose hypothalamus or pituitary gland does not work normally. It compares their sleep with healthy volunteers to better understand how these conditions affect rest.
BarcelonaAges 18–70 - NCT07146256Recruiting
OPMD Natural History Registry Study
This study is building a national registry (a database) for people with Oculo-Pharyngeal Muscular Dystrophy (OPMD) in Israel. Joining will help researchers understand how OPMD progresses over time and may lead to better care.
Ramat GanAges 18 years+ - NCT07148193Recruiting
Quality of life for long-term sarcoma survivors
This study looks at the quality of life and medical care for people who have had sarcoma (including soft tissue, bone, or GIST) for at least 5 years. It aims to understand how survivors are doing and how their care can be improved.
Dresden, SaxonyAges 18 years+ - NCT07151768Recruiting
Validating a risk score for lung disease patients with pulmonary hypertension
This study is testing whether a new risk score can better predict outcomes for people who have both chronic lung disease and pulmonary hypertension (high blood pressure in the lungs). If you qualify, the researchers will follow your health over time to see how well the score works.
Philadelphia, PennsylvaniaAges 18–99 - NCT07154654Recruiting
Long-term study of mexiletine in young children with myotonic disorders
This study follows children under 6 years old with genetic myotonic disorders who are taking or may take mexiletine. It helps doctors understand how well the medicine works and if it is safe over time.
Clermont-FerrandAges Up to 6 years - NCT07155148Recruiting
Argentine registry for Crohn's and colitis patients
This study collects information from people diagnosed with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. By joining the registry, you help researchers learn more about these conditions and improve care.
Córdoba, Córdoba ProvinceAges Any age - NCT07165184Recruiting
Lymph node spread in esophageal cancer study
This study looks at how often cancer has spread to lymph nodes in people with esophageal squamous cell carcinoma. It may help doctors plan better treatment. You may be eligible if your cancer hasn't spread to other organs and you haven't had another cancer.
Shanghai, Shanghai MunicipalityAges 20–85 - NCT07166315Recruiting
Comparing new treatments for arthritis of the spine or joints
This study looks at how well different newer medications work for people with axial spondyloarthritis or psoriatic arthritis. It focuses on those just starting treatment with bimekizumab, risankizumab, guselkumab, upadacitinib, or a TNF inhibitor.
Bath, SomersetAges 18 years+ - NCT07169656Recruiting
Study on reducing liver cancer risk in hepatitis B patients
This study looks at how well different hepatitis B treatments help lower the risk of liver cancer. It's for people with chronic hepatitis B who are already using or starting certain antiviral or interferon therapies.
AnyangAges 18 years+ - NCT07170904Recruiting
Diet, inflammation, and zinc in women of childbearing age
This study looks at how diet, inflammation, zinc levels, and body composition relate to each other in women of different ethnic backgrounds living in Jakarta. It aims to understand nutrition and health patterns in this group.
Jakarta Pusat, DKI JakartaAges 19–49 - NCT07182214Recruiting
Lung cancer detection using a blood test for early signs
This study uses a blood test to look for tiny genetic markers (miRNA and DNA methylation) that may help detect lung cancer early. If you have a lung nodule or mass found on a CT scan and haven't had treatment yet, you may be able to join.
HsinchuAges 18 years+ - NCT07198854Recruiting
Stem cell treatment for liver failure in hepatitis B patients
This trial looks at how well stem cell (MSC) treatment works for people with severe liver failure caused by hepatitis B. It checks what factors affect the success of the treatment.
Guangzhou, GuangdongAges 18 years+
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Common questions
- Are there clinical trials for observational study?
- Yes. Clin2 currently lists 839 recruiting observational study 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 observational study 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 observational study 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.