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
- NCT07292649Recruiting
Labor pain relief and postpartum depression risk
This study looks at how your expectations about pain relief during labor might affect your mood after giving birth. Researchers will follow you after delivery to see if there is a link between your hopes for pain management and the risk of postpartum depression.
Padova, VenetoAges 18 years+ - NCT07326137Recruiting
Pain relief and first-line treatment for advanced bile duct or pancreatic cancer
This study tests combining standard first-line cancer therapy with a nerve block to reduce pain in people with advanced bile duct or pancreatic cancer. It aims to see if this combination can improve pain control and quality of life.
Wuhan, HubeiAges Any age - NCT07336199Recruiting
Pairing your ratings with DBS programming
This study looks at how your own ratings of your Parkinson's symptoms can help fine-tune your deep brain stimulation (DBS) settings. It is for people with Parkinson's who already have a DBS device that can record brain activity.
MünchenAges 35–80 - NCT07677969Recruiting
Arm loss, balance, pain, and daily life study
This study looks at how the percentage of arm loss affects balance, neck and back pain, daily activities, and reaction time in people with one arm amputated who use a myoelectric or bionic hand. It may help understand how to improve care and rehabilitation.
AnkaraAges 18–65 - NCT07678177Recruiting
Study of tegoprazan for patients with GERD
This study looks at how well and how safely the drug tegoprazan works for people with gastroesophageal reflux disease (GERD). It may help if you have symptoms like heartburn or acid reflux.
SeoulAges 19 years+ - NCT07350759Recruiting
Using a wearable to detect heart failure worsening
This study tests if a wearable device can spot early signs of heart failure getting worse. If you already use a heart monitor and have stable readings, you may help show how a non-invasive wearable could alert you sooner.
Tampa, FloridaAges 18 years+ - NCT07355881Recruiting
New test to predict early death after stroke
This study looks at whether a new test (mSOAR) can help doctors predict the risk of early death in people who have had a stroke. It may help guide treatment decisions soon after a stroke.
SohagAges Any age - NCT07357038Recruiting
AmBisome for fungal infections in children with blood cancer
This study follows children and teens with blood cancers who got a fungal infection while on preventive antifungal medicine. It looks at how well liposomal amphotericin B (AmBisome) works and how safe it is for them.
Tianjin, Tianjin MunicipalityAges 1 month–18 years - NCT07357324RecruitingPhase 4
Herbal medicine plus tamsulosin for better sleep after prostate surgery
This study looks at whether a Chinese herbal medicine (Lingze) combined with tamsulosin can help you sleep better and reduce nighttime urination after prostate surgery. It aims to improve your comfort and recovery.
Yiwu, ZhejiangAges 50 years+ - NCT07358754Recruiting
S100B and BDNF levels in fibromyalgia
This trial measures two brain-related proteins (S100B and BDNF) in women with fibromyalgia compared to healthy women. It aims to find out if these proteins are linked to fibromyalgia symptoms, which could lead to better understanding or new treatments.
IstanbulAges 18–50 - NCT07361276Recruiting
Observational study on high blood pressure treatment in public clinics
This study looks at how doctors treat high blood pressure in public health clinics. By reviewing medical records, researchers hope to understand what treatments are used and how well they work.
FlorianópolisAges 18 years+ - NCT07362225Recruiting
MPN Progress Registry: Tracking Symptoms and Progression
This observational registry tracks symptoms, treatments, and disease changes over time in people diagnosed with myeloproliferative neoplasms (MPNs). By joining, you help doctors learn more about the condition and possibly contribute to better future care.
Chicago, IllinoisAges 18 years+ - NCT07363278Recruiting
Study of a new device for atrial fibrillation ablation
This study looks at how often silent brain lesions happen after a new type of heart procedure for atrial fibrillation (an irregular heartbeat). The procedure uses a device called the Varipulse catheter to help fix the heart's rhythm.
Seoul, Jongro-kuAges 19 years+ - NCT07370194Recruiting
Study on high potassium levels in Brazil
This study is looking at how common high potassium levels (hyperkalaemia) are and what factors increase the risk for people with certain health conditions. It may help doctors better understand and manage this condition.
CuritibaAges 18 years+ - NCT07370714Recruiting
Study on wound healing after pilonidal sinus surgery
This study looks at factors that may affect wound healing after surgery for pilonidal sinus disease. It aims to help doctors and patients understand what might cause the wound to open up, so they can take steps to prevent it.
Ankara, AnkaraAges 18 years+ - NCT07372170Recruiting
Blood thinners for preventing another clot in low-risk APS
This study looks at how well blood thinners prevent blood clots from coming back in people with antiphospholipid syndrome (APS) who are considered low risk. It compares two types of medicines: direct oral anticoagulants (DOACs) and vitamin K antagonists.
Madrid, MadridAges 18 years+ - NCT07374692Recruiting
Study of treatments for advanced brain and spinal cord tumors
This study looks at how different treatments work for people with advanced brain or spinal cord tumors that have come back. It helps doctors learn more about these tumors and how to better treat them.
Bethesda, MarylandAges 15–120 - NCT00187512Recruiting
Study of how HIV treatment changes outcomes over time
This is an observational study (not a new drug) that tracks how living with HIV can change over time in different treatment situations. It may help researchers understand long-term effects of the modern “protease inhibitor era” and improve future care.
San Francisco, CaliforniaAges 18 years+ - NCT00733590Recruiting
Study after ICD generator replacement for heart attack patients
This study follows people who had a prior heart attack and later received a replacement ICD (a device that helps prevent sudden dangerous heart rhythms). It is observational, meaning it mainly looks at outcomes and device-related information rather than testing a new drug.
Washington D.C., District of ColumbiaAges 18–85 - NCT01341327Recruiting
Study of treatment choices for left main artery narrowing
This observational study looks at people with a significantly narrowed “left main” heart artery and records treatment decisions and follow-up outcomes. It may help doctors better understand which care approaches work best for this condition in real-world practice.
ShanghaiAges 18 years+ - NCT02073500Recruiting
Study of treatments and models for cancer in the belly lining
This study looks at how cancers that spread along the belly lining (“peritoneal surface malignancies”) behave and how different treatment strategies may work. It may help improve how doctors select and test treatments for people who are candidates for CRS-HIPEC, a specific cancer surgery approach.
OsloAges 18 years+ - NCT02270476Recruiting
Study of how cystic fibrosis lung disease changes over time
This observational study follows children newly diagnosed with cystic fibrosis to understand how their lung disease develops. It may help doctors better predict disease course and choose the right timing for care.
Heidelberg, Baden-WurttembergAges Any age - NCT02418442Recruiting
Kid rheumatic disease registry study for follow-up care
This is an observational study that follows children and teens with rheumatic (joint/inflammatory) diseases to better understand how they develop and are cared for over time. You may help by letting the study contact your family in the future and by completing study tasks as needed.
Birmingham, AlabamaAges Up to 21 years - NCT02829437Recruiting
Study of endometrial stromal tumors in everyday care
This is an observational study for people diagnosed with an endometrial stromal tumor (a specific type of uterine tumor). It mainly aims to learn more about the condition in real-world patients, and helps researchers better understand how these tumors behave.
Meldola, FCAges 18–80
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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.