Found 2528 clinical trials
Prevalence and Level of Diagnosis of Dementia in a Population-based Sample in the County of Tr ndelag
To investigate and make valid estimates of the occurrence of dementia and the most common subtypes of dementia in Trndelag, and transfer these figures to estimates of the occurrence of dementia in Norway as a whole, by age, sex and severity of dementia. Furthermore, the proportion of people without dementia …
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- 16 Feb, 2024
- 1 location
Endoscopic Resection of Large Colorectal Polyps: An Observational Cohort Study
This protocol describes a prospective cohort study. It addresses an important challenge in the prevention of colorectal cancer: how to safely and effectively remove large polyps.
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- 16 Feb, 2024
- 1 location
Outcomes of Elective Cancer Surgery During the COVID-19 Pandemic Crisis
CovidSurg-Cancer is an international, multicentre, observational cohort study designed to evaluate the 30-day COVID-19 infection rates in elective cancer surgery during the COVID-19 pandemic. Centres can elect to include one or more cancer types in the study, in any combination, depending on local expertise and capacity. During the pilot study, …
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- 16 Feb, 2024
- 1 location
RASopathy Biorepository
The RASopathies are a group of developmental disorders caused by genetic changes in the genes that compose the Ras/mitogen activated protein kinase (MAPK) pathway. New RASopathies are being diagnosed frequently. This pathway is essential in the regulation of the cell cycle and the determination of cell function. Thus, appropriate function …
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- 05 Aug, 2020
Multicenter Normal Reference Study of Tissue Motion Tracking of Mitral Annular Displacement(TMAD)
To establish the range of TMADmidTMADmidpt% by using tissue motion tracking of mitral annular displacement (TMAD), and to explore the influencing factors.
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- 16 Feb, 2024
- 75 locations
Slovenian National COVID-19 Prevalence Study
The investigators are conducting a national COVID-19 prevalence survey on a sample of 3,000 inhabitants that were randomly selected from the Slovenian population. The sample is representative in age, gender, and geographical distribution. The main objective is to assess how many people in Slovenia have COVID-19 in April/May 2020 and …
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- 01 Feb, 2023
- 1 location
Longitudinal Study of Seroprevalence of SARS-CoV-2 Antibodies and Development of Immunity in School Children
There is a lack of knowledge about how many children are infected with SARS-CoV-2, how often they are asymptomatic, and how long the immunity persists. The main purpose of this study is to measure antibodies to SARS-CoV-2, symptoms, and risk factors in a representative cohort of children and adolescents in …
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- 01 Feb, 2023
- 1 location
Myocardial Injury and Major Adverse Outcomes in Patients With COVID-19
The study will analyze the incidence, clinical outcomes and predictors of myocardial injury in a large patient population with COVID-19 treated in Mount Sinai Hospital (MSH) system. In addition, the study team will explore the association between high-sensitivity troponin I (TnI) levels and clinical characteristics, biomarkers, cardiac tests data and …
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- 16 Feb, 2024
- 1 location
The Multi-Ethnic Lifestyle Study
The study design is cross-sectional using a self-completion questionnaire in an English speaking multi-ethic population within Leicester and Leicestershire. The study will adopt a convenient and purposive sampling recruitment strategy across a variety of settings within Leicestershire to facilitate recruitment of a wide range of participants.
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- 16 Feb, 2024
- 1 location
Endometrial Cancer Conservative Treatment (E.C.Co). A Multicentre Archive
Approximately one fourth of cases of endometrial cancer (EC) are diagnosed in premenopausal women, of whom approximately 40% wish to preserve their fertility. When arising in young women, EC usually presents with favorable prognostic features, as a focal, well differentiated endometrioid tumor, with minimal or absent myometrial invasion. This profile …
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- 16 Feb, 2024
- 19 locations