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Difference Between Clinical Trial And Community Trial In Washington
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Community trials address the efficacy of preventive interventions applied at the group level (e.g., a social marketing campaign trial). Field trials address preventive interventions applied to individuals (e.g., a vaccine trial).
3.0 COMMUNITY TRIALS: STRENGTHS AND WEAKNESSES It however suffers from 2 main weaknesses: selection bias and controls getting the intervention. Selection bias is likely to occur when allocation is by community.
The methodology of field trial studies is very similar to clinical trials. The difference is that field trials are conducted on healthy individuals and aim to prevent and also the sample size required to this type of study is relatively more, and these studies are usually time consuming and costly.
Community trials are an extension of field trials. In community trials the study group is the entire community, rather than individuals. Conceptually, the difference is whether or not the intervention is implemented separately for each individual.
Interventional studies can be divided broadly into two main types: (i) “controlled clinical trials” (or simply “clinical trials” or “trials”), in which individuals are assigned to one of two or more competing interventions, and (ii) “community trials” (or field trials), in which entire groups, e.g., villages, ...
Community-based research offers a notable advantage to smaller, independent practices primarily due to one factor: patients do not have to travel far to participate in a clinical trial, which can boost enrollment and advance scientific knowledge.
1.1 Field trials are real-life experiments which test directly whether proposed interventions actually work. This makes them powerful tools for gathering evidence for making policy. But, as with all research methods, they come with costs, such as time and resource.
Definition: Clinical trials are interventional studies and involve investigational medicinal products, whereas clinical studies can include both interventional and non-interventional studies but do not involve investigational medicinal products.
In summary, the primary distinction lies in the focus on human subjects and the testing of interventions in clinical trial research, whereas non-clinical trial research encompasses a broader spectrum of studies that may not involve direct interventions on human participants.