Clinical trials
Observational Study clinical trials
Below are recruiting observational study clinical trials, each written for real people, not researchers. We’re tracking 841 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06878131Recruiting
Precision-MRD: Targeted therapy study for colorectal cancer with MRD
This study looks at how well targeted therapies work for people with colorectal cancer who have minimal residual disease (MRD, tiny amounts of cancer left after treatment) detected by a blood test. It is for people who have a specific genetic change (biomarker) in their tumor and have not been treated with the targeted therapy for that biomarker before.
Houston, TexasAges 18 years+ - NCT06878534Recruiting
Thyroid cancer genetic study for patients with follicular origin
This study looks at the genes and mutations in thyroid cancers that start in follicular cells. It aims to understand how these changes relate to how aggressive the cancer is.
NaplesAges 18 years+ - NCT06892015Recruiting
Oropouche virus shedding and immune response study
This study monitors how long the Oropouche virus stays in the body and how the immune system responds after a positive diagnosis. It may help us better understand the course of the infection and improve patient care.
Negrar, VRAges 18 years+ - NCT06899308Recruiting
Health check for university students
This study checks the health of students at two universities in Germany. It uses online surveys and interviews to monitor well-being over time.
BremenAges 18 years+ - NCT06915805Recruiting
Early detection of autism in at-risk babies
This study tracks babies who are at higher risk of autism or other developmental delays, including those born early, small, or with a sibling who has autism. The goal is to spot early signs and help families get support sooner.
ComoAges birth–3 years - NCT06933277Recruiting
Study of selinexor, bortezomib, and dexamethasone for multiple myeloma
This observational study looks at a three-drug combination (selinexor, bortezomib, and dexamethasone) for people with multiple myeloma that has come back after 1 to 3 prior treatments. It may be an option if you've already tried and not responded to lenalidomide.
FlorenceAges 18 years+ - NCT06938516Recruiting
Study of Nebilet for high blood pressure
This study is for people with high blood pressure who are taking or about to start the medication Nebilet. It will track how well Nebilet controls blood pressure in real-world settings, including people with other heart conditions.
Semarang, Central JavaAges 18–100 - NCT06939387Recruiting
Model for drug-induced kidney injury
This study builds a model to understand kidney injury caused by medications. It may help doctors better predict and manage drug-related kidney damage.
Hangzhou, ZhejiangAges Any age - NCT06939569Recruiting
Studying fatty liver disease in people with inflammatory bowel disease
This study looks at how common non-alcoholic fatty liver disease is in people with inflammatory bowel disease (Crohn's or colitis). Researchers want to learn more about the link between the two conditions.
ShanghaiAges 18 years+ - NCT06952738Recruiting
Studying bacteria around hip or knee fracture repairs
This trial looks for bacteria around the implant in patients who need surgery for a broken bone near a hip or knee replacement. It aims to learn if these infections affect healing.
Chicago, IllinoisAges 18 years+ - NCT06954636Recruiting
Smell test to predict glioblastoma outcomes (newly diagnosed)
This study looks at whether a simple smell test can help predict how glioblastoma will progress. It is for people who are newly diagnosed and have not started treatment yet.
EssenAges 18 years+ - NCT06957158Recruiting
How calcium levels affect pain after abdominal surgery
This study looks at whether calcium levels in your blood can affect how much pain you feel after abdominal surgery. It may help doctors manage pain better after surgery in the future.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT06961175Recruiting
Platelet function study in heart surgery
This study looks at how well platelets work during heart surgery using a special test called thromboelastography. It may help doctors understand and manage bleeding risks in people having planned heart surgery with a heart-lung machine.
SalamancaAges 18 years+ - 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 - 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 - NCT06983847Recruiting
Long-term study of Vitamin-C Injektopas in vitamin C deficiency
This study observes patients with vitamin C deficiency who receive Vitamin-C Injektopas 7.5 g over time to understand how it is used and its effects. It may help if you have low vitamin C levels.
Vienna, Etc., AustriaAges 18–120 - NCT06989008Recruiting
Improving diabetes care with wearable sensors
This study tests if wearing two devices (a continuous glucose monitor and a sports wristband) can help improve diabetes care. It focuses on people with type 2 diabetes who live in certain Chicago neighborhoods and are willing to use the devices.
Chicago, IllinoisAges 18–65 - NCT06996665Recruiting
High-flow nasal cannula based on diaphragm ultrasound
This study uses ultrasound to match high-flow oxygen settings to your diaphragm's movement. It looks at how breathing muscles respond at different flow rates to give you the best support.
Hangzhou, ZhejiangAges 18 years+ - NCT06997055Recruiting
Study of Steqeyma® biosimilar in Crohn's and psoriasis
This study follows people with Crohn's disease or plaque psoriasis who are switching from the reference Ustekinumab to a biosimilar (Steqeyma®). It aims to see how well the biosimilar works in real-world settings.
AmiensAges 18 years+ - NCT07004868Recruiting
Inflammation & treatment response in lung cancer immunotherapy
This study looks at how inflammation and body changes (like weight loss) affect how well immunotherapy works in lung cancer. If you are starting immunotherapy at the hospital in Tours, your doctors will collect information from your regular care to learn more about your response.
ToursAges 18 years+ - NCT07009717Recruiting
Big toe strength and chemo nerve damage
This study looks at whether the strength of your big toe is related to nerve damage from chemotherapy. It involves a one-time test of your toe strength and some questionnaires. It may help researchers better understand how chemo affects your nerves.
Gainesville, FloridaAges 18–90 - NCT07023172Recruiting
Study of Proline Plus Empagliflozin for Type 2 Diabetes
This study is testing a new medication called Proline Plus Empagliflozin to see how well it works for people with type 2 diabetes. It is for people who are starting this medication for the first time.
Xinyang, HenanAges 18 years+ - NCT07035938Recruiting
T-Cell Health in Blood Cancer Patients Study
This study looks at how T-cells (a type of immune cell) work in people with certain blood cancers (B-cell lymphoma or multiple myeloma) compared to healthy volunteers. The goal is to learn more about the immune system in these cancers, which may help improve future treatments.
Xiamen, FujianAges 18 years+ - NCT07036146Recruiting
Study of S100B changes after head trauma in the ER
This study looks at changes in a protein called S100B in people who come to the emergency room with a head injury. It is an observational study, meaning no treatment is given; researchers just take blood samples to see how S100B levels change, which might help doctors better understand head injuries.
Milan, MilanoAges Up to 100 years
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Common questions
- Are there clinical trials for observational study?
- Yes. Clin2 currently lists 841 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.