Clinical trials
Observational Study clinical trials
Below are recruiting observational study clinical trials, each written for real people, not researchers. We’re tracking 824 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06782217Recruiting
Safety study of bee and wasp venom allergy shots
This study monitors the safety of venom immunotherapy (allergy shots) for people with bee or wasp sting allergies. If you are starting this treatment, researchers will track how well you tolerate it over time.
Ferrol, A CoruñaAges 14 years+ - 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+ - 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 - NCT07154823Recruiting
Blood cancer registry study for biomarker discovery
This study collects samples and health information from people with certain blood cancers to learn more about the disease and find markers that may help guide future treatments. You will not receive a treatment from this study, but you may help advance research.
Iowa City, IowaAges birth+ - 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 - 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+ - NCT07147101Recruiting
Immunotherapy for advanced liver cancer: a study on effectiveness and immune response
This study looks at different first-line immunotherapy treatments for people with advanced liver cancer that cannot be treated with surgery or local therapies. It aims to understand how well these treatments work and how they affect the body's immune system.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07153848Recruiting
Lecanemab treatment for early Alzheimer's disease
This study tests how lecanemab works in people with early Alzheimer’s, including those with mild dementia or mild memory problems. It aims to see if the drug can help clear brain plaques and slow down symptoms.
Hangzhou, ZhejiangAges 45–85 - 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 - 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 - NCT07129005Enrolling by invitation
MRI-based tool to tell uterine sarcoma from fibroids
This trial uses MRI scans to see if a computer can tell the difference between uterine sarcoma (a rare cancer) and fibroids (non-cancerous growths). If you've already been diagnosed with one of these and had an MRI before surgery, you may be able to help.
Wuhan, HubeiAges 18 years+ - NCT07133984Recruiting
Heart imaging study for patients with low heart function and coronary artery disease
This study uses cardiac MRI to look at the heart in people with weakened heart muscle and blocked heart arteries. It may help doctors improve treatments like bypass surgery or stents.
Brooklyn, New YorkAges 18 years+ - NCT07122180Enrolling by invitation
14-day study of a new continuous glucose monitor for diabetes
This study tests a new continuous glucose monitor (CGM) that you wear for 14 days. It checks how accurate the device is and how well it helps track your blood sugar levels, all while being safe and easy to use.
Riga, RigaAges 18–80 - 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 - 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 - NCT07109375Recruiting
Long-term study of pegunigalsidase alfa for Fabry disease
This study observes how well the medication pegunigalsidase alfa works over a long period in people with Fabry disease. It helps doctors learn more about managing the condition in everyday life.
ArezzoAges 18 years+ - 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+ - 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+ - NCT06967207Recruiting
Electrical imaging lung monitor for ARDS outcomes
This study tests if a special imaging technique (Electrical Impedance Tomography or EIT) can help doctors better predict outcomes in people with severe lung injury (ARDS). The goal is to use regular, safe lung scans to guide breathing treatment.
Guangzhou, GuangdongAges 18–80 - 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+ - NCT07093801Recruiting
Study of lutetium-177-PSMA-617 for advanced prostate cancer
This study is observing how well the treatment lutetium-177-PSMA-617 works in people with metastatic castration-resistant prostate cancer. It aims to gather real-world information about its effectiveness and safety.
Alessandria, ALAges 18–99
Hear when a new Observational Study trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for observational study?
- Yes. Clin2 currently lists 824 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.