Clinical trials
Observational Study clinical trials
Below are recruiting observational study clinical trials, each written for real people, not researchers. We’re tracking 846 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06093022Recruiting
Treatment options for breast cancer that has spread to the liver
This study looks at how breast cancer that has spread to the liver responds to different treatments, including surgery and medicines. The goal is to learn which approach works best for patients with this condition.
Rome, LazioAges 18 years+ - NCT06103916Recruiting
Testing the ADNEX model for ovarian tumors
This trial is testing how well a special ultrasound model (ADNEX) can predict whether an ovarian tumor is benign or cancerous. It helps doctors make better decisions, and it’s for people with complex ovarian tumors who speak Dutch.
Veldhoven, North BrabantAges 18 years+ - NCT06104007Recruiting
Genoss balloon for narrowed heart stents
This study follows patients who have already received a special drug-coated balloon (Genoss® DCB) to treat a re-narrowed heart stent. It aims to see how safe and effective the balloon is in the long term.
SeoulAges 19 years+ - NCT06126016Recruiting
A study of Pacitol Inj. for dialysis patients with parathyroid issues
This study watches how well the drug Pacitol Inj. works and how safe it is in people on dialysis who have overactive parathyroid glands caused by kidney disease. It follows patients who are already prescribed this drug by their doctor.
Goyang-si, Gyeonggi-doAges 19 years+ - NCT06143449Recruiting
Taiwan Diabetes Registry
This registry study collects health information from people with diabetes to help researchers better understand and improve diabetes care in Taiwan. It involves no new treatments or procedures.
TaipeiAges Any age - NCT06151028Recruiting
Menopause Symptoms in Women After Ovary Removal for Gynecologic Cancer
This study looks at menopause symptoms in women who have had their ovaries removed as part of gynecologic cancer treatment. It aims to understand how these symptoms affect patients over time.
Hefei, AnhuiAges 18–55 - NCT06158360Recruiting
Post-surgery symptoms after thyroid cancer surgery
This study looks at how you feel after thyroid surgery for cancer. It tests whether adding Chinese medicine treatments can help with symptoms like pain or fatigue during recovery.
Gyeonggi-doAges 19 years+ - NCT06164561Recruiting
FAPI PET/MRI scan for myelofibrosis
This trial tests whether a special type of PET scan (using a tracer called 18F-FAPI) can see myelofibrosis activity better than standard scans. It may help doctors track the disease more accurately without needing extra biopsies.
Hangzhou, ZhejiangAges 18–80 - NCT06167629Recruiting
PSMA PET scan study for prostate cancer
This study uses a special type of PET scan called PSMA PET to better understand and track prostate cancer. The scan helps doctors see where the cancer is in the body and if treatment is working.
MilanAges 18 years+ - NCT06189092Recruiting
Electrosclerotherapy for low-flow venous malformations
This study is testing a treatment called electrosclerotherapy for low-flow venous malformations. It uses a medicine (bleomycin) injected into the abnormal blood vessels to shrink them. The goal is to see how well it works and how safe it is.
Bologna, Emilia-RomagnaAges 16 years+ - NCT06192719Recruiting
Study of gallbladder cancer, dysplasia, and gallstones
This trial is studying people with gallbladder cancer, abnormal cell changes (dysplasia), or gallstones. It aims to learn more about these conditions, possibly before or after treatment, or before gallbladder removal surgery.
SaltaAges 18 years+ - NCT06212479Recruiting
Whole-body MRI for Preventive Health Screening
This study uses whole-body MRI to see if it can find health issues early in people without symptoms. The goal is to learn if this scan can help predict clinically important conditions in routine preventive care.
Watertown, MassachusettsAges 18 years+ - NCT06219759Recruiting
Nerve Reconnection and Signals in ALS
This study looks at how nerves reconnect and send signals to muscles in people with ALS. It may help doctors understand the disease better and find new ways to treat it.
Aarhus, Central JutlandAges 18 years+ - NCT06222957Recruiting
How HER2 affects brown fat in breast cancer patients
This study looks at how a protein called HER2 affects brown fat activity in women with breast cancer. Brown fat helps burn calories and may influence treatment outcomes. You will be assigned to one of two groups based on your cancer's HER2 status, and the study will measure how your brown fat responds to cold.
CopenhagenAges 18 years+ - NCT06232265Recruiting
Predicting Immunotherapy Success in Lung Cancer
This study looks at how well a test called LIRAscore can predict whether immunotherapy will work for people with advanced non-small cell lung cancer. You will receive standard immunotherapy (with or without chemotherapy), and researchers will check your tumor samples for certain markers.
Guangzhou, GuangdongAges Any age - NCT06236789Recruiting
Ifosfamide for men with advanced prostate cancer
This trial is studying whether the chemotherapy drug ifosfamide (given with mesna to protect the bladder) can help men whose prostate cancer has spread and is no longer controlled by hormone therapy. It is for men who have already tried the chemotherapy docetaxel.
SeoulAges 19 years+ - NCT06241729Recruiting
Observation of first-time DLBCL treatment at Charleroi hospital
This study is watching how people with newly diagnosed diffuse large B cell lymphoma (a blood cancer) are treated for the first time at Grand Hôpital de Charleroi. It collects information to help doctors learn more about the disease and its care.
Charleroi, HainautAges 18 years+ - NCT06271330Recruiting
Switching older injections to faricimab for wet AMD
This study looks at people with wet AMD who have been getting regular eye injections of either aflibercept or ranibizumab for over a year. The goal is to see what happens when they switch to a newer injection called faricimab.
Nantes, NantesAges 18 years+ - NCT06278207Recruiting
Finerenone in real-world diabetes and kidney disease
This study looks at how the medication finerenone works in everyday medical practice for people with type 2 diabetes and certain stages of chronic kidney disease. It aims to see how safe and effective the treatment is outside of a clinical trial setting.
Multiple Locations, New JerseyAges 18 years+ - NCT06280755Recruiting
AI-assisted MS care study
This study looks at how artificial intelligence (AI) can help doctors care for people with multiple sclerosis (MS) and other similar conditions. It uses existing medical data to see if AI can improve treatment decisions.
Prague, Praha 2Ages 18 years+ - NCT06282237Recruiting
Surgery for Soft Tissue Sarcoma: Recovery and Quality of Life
This study follows people with soft tissue sarcoma who are having surgery to remove the tumor. It aims to understand how their movement, daily life, and overall well-being are affected by the surgery and recovery.
RomaAges Any age - NCT06292897Recruiting
Obesity and prostate cancer tissue study
This study looks at how obesity might affect prostate cancer growth. It uses tissue samples to understand the role of certain metabolites in the tumor, which could lead to better treatments.
MilanAges 18 years+ - NCT06308328Recruiting
Mucosal contouring study for oral pain from radiation
This study tests a new way to reduce mouth and throat pain caused by radiation therapy for nasopharyngeal cancer. It may help if you are currently getting radiation or chemoradiation and have mouth sores.
Guangzhou, GuangdongAges 18 years+ - NCT06308055Recruiting
Impella heart pump study in ICU
This study is for people in the intensive care unit who are using a heart pump called Impella. It will collect information about how well the heart pumps blood during treatment to help doctors learn more.
Aachen, North Rhine-WestphaliaAges 18 years+
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Common questions
- Are there clinical trials for observational study?
- Yes. Clin2 currently lists 846 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.