CITI Training Practice Exam

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Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which phase best describes a large, double-blinded study on migraine treatment with 1200 subjects?

Phase 1
Phase 2
Phase 3
Phase 4

The correct answer is: Phase 3

A large, double-blinded study with 1200 subjects on migraine treatment would fall under Phase 3 of the clinical trial process. This phase involves testing the treatment on a larger group of participants to gather more data on its safety and effectiveness. Phase 1 trials are usually smaller and are used to determine initial safety, while Phase 2 involves testing on a larger group to determine efficacy. Phase 4 trials are typically post-marketing studies that continue to gather information on the treatment's long-term effects.