Found 64,778 clinical trials
International Rare Brain Tumor Registry
The objective of the International Rare Brain Tumor Registry (IRBTR) is to better understand rare brain tumors through the collection of biospecimens and matched clinical data of children, adolescents, and young adult patients diagnosed with rare brain tumors.
Frailty Status and Increased Risk for Falls
We hypothesized that the use of anticholinergic medications may precipitate falls differently by frailty status in older adults. Community-dwelling older subjects admitted to the Geriatrics Outpatient Clinic prospectively enter into the study. Frailty status is defined according to the Physical Frailty Phenotype. The drugs are categorized according to the ACB …
Diagnostic, Therapeutic and Reproductive Aspects of Patients With Mullerian Anomalies (MULAN)
The purpose of this study is to get a better understanding of the clinical implications (including reproductive problems and obstetric complications), appropriate diagnostic tools and correct surgical treatment of Mullerian anomalies.
Exogenous and Endogenous Risk Factors for Early-onset Colorectal Cancer
An increase in early-onset colorectal cancers (eoCRC), defined as a CRC before 50 years, is confirmed globally. CRC pathogenesis has been associated with several risk factors (family history, germline pathogenic variants, obesity, alcohol, physical activity, red meat, and a Western diet). Design: an international, multicenter, retrospective case-control study of prospectively …
The FUnctional TricUspid REgurgitation by 3D EChocardiography Cooperative Study
Prospective, multicenter, observational study to enroll consecutive patients with functional tricuspid regurgitation (FTR) with the primary aim to: Use patients' outcomes as a reference to try to define the threshold values for the different grades of FTR severity; and secondary aims to: Use 3D echocardiography to assess the relationships among …
Clinical and Genetic Analysis of ROP
Retinopathy of Prematurity (ROP) is a vascular disease affecting the retinas (back of the eye) of low birth weight infants. Although it can be treated effectively if diagnosed early, it continues to be a leading cause of childhood blindness in the United States and throughout the world. The investigators feel …
Clinical Characteristics of Infantile Hemangioma
The primary purpose of this study is to identify the clinical characteristics of infantile hemangioma (IH) in our single center in China. The second objective of the study is to identify the clinical features of infantile hepatic hemangioma (IHH) and ulceration in patients with IHs.
Collection and Distribution of Blood Components From Healthy Donors for In Vitro Research Use
This protocol is designed to provide a mechanism for the Department of Transfusion Medicine, Clinical Center to collect and process blood components from paid, healthy volunteer donors for distribution to NIH intramural investigators and FDA researchers for in vitro laboratory use. Donors meeting research donor eligibility criteria will be recruited …
Risk Factors for Community- and Workplace Transmission of COVID-19
The project is an epidemiological observational study based on an electronic questionnaire on risk factors for COVID-19 in the community and healthcare setting.
Influenza Vaccination, ACEI and ARB in the Evolution of SARS-CoV2 Infection
Some authors have proposed the use of the flu vaccine to reduce the severity of COVID-19 cases, while some have proposed the use of ACE Inhibitors (ACEI) or Angiotensin Receptor blockers (ARB), since this virus shares hemagglutinin as a transmission mechanism and acts on the ACE2 enzyme during infection. Other …
