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  2. Clinical trial - Wikipedia

    en.wikipedia.org/wiki/Clinical_trial

    A clinical trial participant receives an injection. Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, dietary choices, dietary supplements, and medical devices) and known interventions that warrant further ...

  3. Phases of clinical research - Wikipedia

    en.wikipedia.org/wiki/Phases_of_clinical_research

    Clinical trials testing potential medical products are commonly classified into four phases. The drug development process will normally proceed through all four phases over many years. [1] When expressed specifically, a clinical trial phase is capitalized both in name and Roman numeral, such as "Phase I" clinical trial. [1]

  4. Analysis of clinical trials - Wikipedia

    en.wikipedia.org/wiki/Analysis_of_clinical_trials

    Clinical trials are medical research studies conducted on human subjects. [1] The human subjects are assigned to one or more interventions, and the investigators evaluate the effects of those interventions. [1] [2] The progress and results of clinical trials are analyzed statistically. [3] [4]

  5. Clinical research - Wikipedia

    en.wikipedia.org/wiki/Clinical_research

    Clinical research is a branch of medical research that involves people and aims to determine the effectiveness and safety of medications, devices, diagnostic ...

  6. Randomized controlled trial - Wikipedia

    en.wikipedia.org/wiki/Randomized_controlled_trial

    A randomized controlled trial (or randomized control trial; [2] RCT) is a form of scientific experiment used to control factors not under direct experimental control. Examples of RCTs are clinical trials that compare the effects of drugs, surgical techniques, medical devices, diagnostic procedures, diets or other medical treatments. [3] [4]

  7. Intention-to-treat analysis - Wikipedia

    en.wikipedia.org/wiki/Intention-to-treat_analysis

    Randomized clinical trials analyzed by the intention-to-treat (ITT) approach provide unbiased comparisons among the treatment groups. Intention to treat analyses are done to avoid the effects of crossover and dropout, which may break the random assignment to the treatment groups in a study.

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