Clinical trial
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Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatm
A clinical trial participant receives an injection.
Edward Jenner vaccinating James Phipps, a boy of eight, on 14 May 1796. Jenner failed to use a control group.
Austin Bradford Hill was a pivotal figure in the modern development of clinical trials.
Timeline of various approval tracks and research phases in the US
Dietary supplement
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A dietary supplement is a manufactured product intended to supplement a person's diet in the form of a pill, capsule, tablet, powder, or liquid. A supplement can provide nutrients that are either extr
Clinical trial
…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 study and comparison. Clinical trials generate data on dosage, safety and efficacy…
As a pill (iodine)
As a capsule (spirulina)
As a tablet (B vitamins)
As a softgel capsule (cod liver oil)