Found 64,783 clinical trials
Registry of Asthma Characterization and Recruitment 3 (RACR3)
This is a multi-center, non-interventional registry to create and maintain a database of participants to serve as a recruitment source for current and future DAIT NIAID-sponsored Childhood Asthma in Urban Settings (CAUSE) studies.
COVID-19 Vaccines Safety Tracking (CoVaST)
This project aims to monitor the side effects of COVID-19 vaccines worldwide actively. The primary objectives of the project include a) to estimate the prevalence of each local and systemic side effect of each COVID-19 vaccine among healthcare workers (HCW), old adults over +65 (OA), and schoolteachers (ST); b) to …
Studying Health Outcomes After Treatment in Patients With Retinoblastoma
This trial studies health outcomes after treatment in patients with retinoblastoma. Gathering health information over time from patients and family members through vision assessments, samples of tissue and saliva, and questionnaires may help doctors learn more about what causes retinoblastoma, identify long-term health outcomes for patients with retinoblastoma, and find …
The Prognosis of Patients After PCI：a Multi-center Study in China
Coronary artery disease (CAD) is caused by myocardial ischemia, hypoxia or necrosis due to coronary artery stenosis, spasm or obstruction. Although standard drug therapy can greatly improve the prognosis of patients with CAD after percutaneous coronary interventions (PCI), these patients are still at high risk of major adverse cardiovascular and …
Patient-Centered Assessment of Symptoms and Outcomes
Background The cause of fatigue is not well understood. It can be felt differently by different people. Some people think there are different types of fatigue, with different causes. Researchers think a therapy to treat one type of fatigue in one condition should be able to treat that type of …
Molecular Epidemiology of Pediatric Germ Cell Tumors
A Non-Therapeutic Study that aims to establish a cohort of GCT survivors to understand short term and long-term adverse effects of treatment and to conduct molecular analyses to improve risk stratification.
A Novel Multiplex ELISA Assay for Evaluating Patients With Microscopic Hematuria for Bladder Cancer
To improve upon the non-invasive detection of BCa by further validating a multiplex ELISA assay directed at a BCa-associated diagnostic signature in voided urine samples of patients with microscopic hematuria.
Public Survey on Breath Testing for Health and Disease
A brief survey for the public to determine interest in health surveillance and disease detection
Genome Medical Sequencing for Genome Discovery
Background A number of rare inherited diseases affect only a few patients, and the genetic causes of these conditions remain unknown. Researchers are studying the use of a new technology called genome sequencing to learn which gene or genes cause these conditions. Understanding the genes that cause these diseases is …
Evaluation Study: Obsessive-compulsive Disorders in Childhood and Young Adulthood
Obsessive-compulsive disorders are very damaging illnesses that can already manifest in childhood and adolescence. With an average prevalence from 1 - 3%, they are one of the most frequently diagnosed psychiatric illness in these age groups. With the further use of data, the treatment success can be significantly improved; causal …
