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
- NCT05686447Recruiting
Testing blood samples to study multiple myeloma
This study looks at stored blood (serum) samples to see whether a lab test called MALDI-TOF mass spectrometry can help analyze multiple myeloma proteins. If you have multiple myeloma (or are a healthy matched control), your existing lab samples may be used for testing.
Guangzhou, GuangdongAges Any age - NCT07219927Recruiting
Patient experiences with pump-delivered Parkinson's drug
This study looks at real-world experiences of people with Parkinson's who are using ONAPGO, a medication given continuously under the skin through a pump. The goal is to understand how this treatment works in daily life.
Aliso Viejo, CaliforniaAges 18 years+ - NCT07214753Recruiting
Benralizumab for severe eosinophilic asthma in Italy
This study follows people with severe eosinophilic asthma who are starting benralizumab. It looks at how well the treatment works in real life, outside of a controlled research setting.
Salerno, BattipagliaAges 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 - NCT07211178Recruiting
Tracking cancer DNA in blood to detect early return of breast cancer
This study tracks tiny traces of cancer DNA in the blood over time to see if it can find early signs of breast cancer coming back. It looks at different types of breast cancer and at different points in a patient's treatment journey.
Birmingham, AlabamaAges 18–99 - NCT05040178Recruiting
Study of Carbaglu® use for MMA and PA
This observational study looks at how Carbaglu® is used and how well it works for people with methylmalonic acidemia (MMA) or propionic acidemia (PA). It may help doctors understand real-world care for adults and children living with these conditions.
Washington D.C., District of ColumbiaAges Any age - NCT07200375Recruiting
Glofitamab for Chinese adults with DLBCL who relapsed after first treatment
This study looks at how well a drug called Glofitamab works in Chinese adults with a type of lymphoma (diffuse large B-cell lymphoma) that has come back or not gotten better after one round of standard treatment. It will help doctors understand more about its effects in real-world settings.
Langfang, HebeiAges 18 years+ - 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 - NCT07200726Recruiting
Brain inflammation and thinking after heart surgery
This study looks at whether brain inflammation during heart surgery may affect memory and thinking. It includes people aged 60 and older who are having planned heart surgery.
Genk, LimburgAges 60 years+ - NCT07198854Recruiting
Stem cell treatment for liver failure in hepatitis B patients
This trial looks at how well stem cell (MSC) treatment works for people with severe liver failure caused by hepatitis B. It checks what factors affect the success of the treatment.
Guangzhou, GuangdongAges 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 - 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+ - NCT07192991Recruiting
Neuroendocrine Cancers: Patient Journey and Treatment in Latin America
This study looks at how people with certain neuroendocrine cancers (including small cell lung cancer and large-cell neuroendocrine carcinoma) are diagnosed and treated in Latin America. It aims to understand the patient journey and improve future care.
Buenos Aires, Buenos AiresAges 18 years+ - NCT07178626Recruiting
Biomarkers and feeding tolerance in ICU patients
This study looks at whether certain biomarkers and stomach motility measurements can help predict feeding intolerance in critically ill patients who cannot eat by mouth. It aims to improve how patients are fed in the ICU.
ChangchunAges 18 years+ - NCT07179497Recruiting
Study of Neobone in dental bone surgery
This study looks at how safe and effective Neobone is for repairing bone in dental surgery. If you need a bone graft for your jaw or teeth, this could be relevant.
LisbonAges 18 years+ - NCT07179510Recruiting
Study of a new dental bone filler for surgery patients
This study follows patients who receive a new injectable bone filler called Neocement® Inject P during dental reconstructive surgery. The goal is to see if it is safe and works well to help heal bone defects.
LisbonAges 18 years+ - NCT07182214Recruiting
Lung cancer detection using a blood test for early signs
This study uses a blood test to look for tiny genetic markers (miRNA and DNA methylation) that may help detect lung cancer early. If you have a lung nodule or mass found on a CT scan and haven't had treatment yet, you may be able to join.
HsinchuAges 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+ - NCT07166315Recruiting
Comparing new treatments for arthritis of the spine or joints
This study looks at how well different newer medications work for people with axial spondyloarthritis or psoriatic arthritis. It focuses on those just starting treatment with bimekizumab, risankizumab, guselkumab, upadacitinib, or a TNF inhibitor.
Bath, SomersetAges 18 years+ - NCT07169708Recruiting
Study of nivolumab and chemo before surgery for lung cancer
This trial looks at real-world outcomes in Taiwan for people with resectable non-small cell lung cancer (NSCLC) who get nivolumab combined with chemotherapy before surgery. It aims to understand how well this treatment works and how safe it is.
Kaohsiung CityAges 18 years+ - NCT07165184Recruiting
Lymph node spread in esophageal cancer study
This study looks at how often cancer has spread to lymph nodes in people with esophageal squamous cell carcinoma. It may help doctors plan better treatment. You may be eligible if your cancer hasn't spread to other organs and you haven't had another cancer.
Shanghai, Shanghai MunicipalityAges 20–85 - NCT07170904Recruiting
Diet, inflammation, and zinc in women of childbearing age
This study looks at how diet, inflammation, zinc levels, and body composition relate to each other in women of different ethnic backgrounds living in Jakarta. It aims to understand nutrition and health patterns in this group.
Jakarta Pusat, DKI JakartaAges 19–49 - NCT07169656Recruiting
Study on reducing liver cancer risk in hepatitis B patients
This study looks at how well different hepatitis B treatments help lower the risk of liver cancer. It's for people with chronic hepatitis B who are already using or starting certain antiviral or interferon therapies.
AnyangAges 18 years+ - NCT06701890Recruiting
Traveler health study
This study follows travelers to learn about illnesses they might get abroad, like infections from mosquitoes or antibiotic-resistant germs. It uses a smartphone app to track your health before, during, and after your trip.
ParisAges 18 years+
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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.