Clinical trials
Observational Study clinical trials
Below are recruiting observational study clinical trials, each written for real people, not researchers. We’re tracking 845 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT02792075Recruiting
Study heart artery narrowing seen on special imaging
This study follows people who already have a heart artery imaging test to understand what the imaging means for future heart outcomes. It may help doctors predict prognosis and guide treatment for coronary narrowing.
Seoul, Songpa-guAges 19 years+ - NCT02640911Recruiting
Long-term study of certain antipsychines in schizophrenia
This is an observational (non-intervention) study that follows adults with schizophrenia who are taking specific “atypical” antipsychotic medicines long-term. Researchers want to learn about patients’ experiences and outcomes while on these treatments.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT03099681Recruiting
Study of epithelioid sarcoma care and follow-up
This is an observational study for people diagnosed with epithelioid sarcoma, focused on how patients are followed over time. It does not appear to test a new treatment, but it can help doctors better understand the disease and follow-up needs.
Meldola, FCAges Any age - NCT02964637Recruiting
Tests to help diagnose frontotemporal dementia
This study looks at testing (including brain scans) to figure out what type of frontotemporal dementia or related language/speech condition a person has. It may help by making diagnoses more accurate, which can guide better care.
Toronto, OntarioAges 18–90 - NCT07677033Recruiting
Bone and muscle health study for adults
This study looks at how well your bones and muscles work together. By measuring your bone density and handgrip strength, doctors can better understand your bone health and find ways to keep you strong as you age.
Küçükçekmece, IstanbulAges 18 years+ - NCT07398079Recruiting
Wellness program for breast and gynecological cancer survivors
This study explores whether a structured wellness program can help breast and gynecological cancer survivors feel better after their main treatments. It looks at how an integrative approach, which may include complementary therapies, supports your recovery and quality of life.
BaselAges 18 years+ - NCT07400354Recruiting
PD-1 drug plus chemo for advanced stomach cancer based on gut bacteria
This trial tests if adding a PD-1 immunotherapy drug to standard chemotherapy works better for advanced stomach cancer, and looks at how your gut bacteria may affect treatment. It is for people who have not had chemotherapy before and are starting their first treatment.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07404644Recruiting
Study of vonicog alfa in children with von Willebrand disease
This study looks at how well vonicog alfa (a lab-made version of a missing blood protein) works to control bleeding in children under 18 with von Willebrand disease. It follows children who are already prescribed this treatment in Japan to see how safe and effective it is in real life.
Tokyo, TokyoAges Up to 17 years - NCT07411313Recruiting
Ultrasound to predict low blood pressure in older adults having spinal anesthesia
This trial uses ultrasound to check your internal jugular vein, which may help predict if your blood pressure will drop during spinal anesthesia. It aims to find better ways to keep you safe during surgery.
Ankara, YENİMAHALLEAges 65 years+ - NCT07417813Recruiting
Lemborexant for insomnia in people with mental health conditions
This study tests if lemborexant, a sleep medication, can help people with both a mental health condition and insomnia. You would take the medicine as prescribed and complete questionnaires over 2 months.
Suzhou, JiangsuAges 18 years+ - NCT07424872Recruiting
VERANDA survey for patients and caregivers
This trial is a survey asking patients and caregivers about their needs and experiences. It aims to improve healthcare by learning from people like you.
Berlin, State of BerlinAges 18 years+ - NCT07425639Recruiting
Switching From Omalizumab to OMLYCLO in Asthma or Hives
This study follows patients with severe asthma or chronic hives who are already on omalizumab (Xolair) and are switching to a very similar, lower-cost biosimilar called OMLYCLO. It aims to see if the switch works well in real-world practice.
MontpellierAges 18 years+ - NCT07427849Recruiting
Using ultrasound to find endometriosis on pelvic ligaments
This study uses a special ultrasound to look for endometriosis on the uterosacral ligaments, which are small bands in the pelvis. It may help diagnose milder forms of endometriosis more accurately before surgery.
Naples, NapoliAges 18–50 - NCT07437157Recruiting
Hong Kong diabetes fatty liver disease study
This research study looks at people with type 2 diabetes to learn more about fatty liver disease. By joining, you may help doctors better understand how these conditions are linked and improve future care.
Hong Kong, New TerritoriesAges 18 years+ - NCT07458516Recruiting
Observing eye disease progression in type 2 diabetes
This study closely follows people with type 2 diabetes who have early signs of diabetic retinopathy (damage to the retina from diabetes) to see how the condition changes over time. It does not test a new treatment but monitors the eye's health closely. It may be a good fit if you have diabetic retinopathy that does not need immediate treatment.
CoimbraAges 35–80 - NCT07459686Recruiting
Long-term safety of Velsipity for ulcerative colitis
This study watches people with ulcerative colitis who are taking Velsipity (a medicine) for the first time. It aims to learn how the drug works and what side effects might happen over the long term.
TokyoAges birth+ - NCT07460557Recruiting
Link between jaw shape and vision
This study looks at how the shape of your jaw and face might relate to your eyesight. Healthy young adults aged 21 to 25 are needed to see if there is a connection.
ZagrebAges 21–25 - NCT07464444Recruiting
Study testing a device that records heart and lung sounds
This study is testing a new device that records heart and lung sounds to see if it can help doctors better understand heart and lung conditions. You may be eligible if you have a known heart condition or if you are generally healthy, and if you've had or will have an echocardiogram (heart ultrasound) in the last or next year.
Montreal, QuebecAges 18–100 - NCT07468097Recruiting
How metabolism affects pain in women with lipedema
This study looks at how metabolic health (like blood sugar and thyroid function) may influence pain and sensitivity in women with lipedema. It aims to better understand these links to improve treatment approaches.
Istanbul, PendikAges 18 years+ - NCT07482124Recruiting
Registry study for patients with subarachnoid hemorrhage
This study collects information on people who have had a subarachnoid hemorrhage (a type of brain bleed) from certain causes. It helps doctors better understand the condition and improve care.
Nijmegen, GelderlandAges Any age - NCT07554469Recruiting
Study of Finerenone for Kidney Disease in Type 2 Diabetes
This observational study tracks how well finerenone (a kidney-protective medication) works in adults with type 2 diabetes and chronic kidney disease in Spain. Researchers will measure changes in kidney function and disease risk over time to better understand the medication's real-world benefits.
Multiple LocationsAges 18 years+ - NCT07491939Recruiting
Living Well with Arthritis: A Palliative Care Study
This study explores how palliative and supportive care can help people with arthritis feel better and live well. You can join even if you are not currently receiving palliative care.
Bath, WiltshireAges 18 years+ - NCT07499024Recruiting
TWIST score for testicular torsion in adults with scrotal pain
This study checks how well a scoring tool (TWIST) can tell if testicular torsion is likely in adults with sudden scrotal pain. If you have sudden pain in your scrotum, you may be eligible to help test this tool in the emergency room.
Linköping, Östergötland CountyAges 18–40 - NCT07499388Recruiting
Study on blood flow during fluid therapy in ICU
This study looks at how giving fluids to critically ill patients in the ICU affects blood flow back to the heart. It helps doctors understand if giving fluids improves circulation.
AnconaAges 18 years+
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Common questions
- Are there clinical trials for observational study?
- Yes. Clin2 currently lists 845 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.