Which phase of clinical trials typically requires the largest number of human participants in pharmaceutical product development?

The journey from concept to FDA-approved medical device or pharmaceutical is complex and highly regulated. This trivia tests your knowledge of the product development process in the medical industry, where innovations must balance efficacy, safety, and commercial viability. How well do you understand the stages and requirements that shape tomorrow's medical breakthroughs?

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Phase I - Initial safety testing
Phase II - Preliminary efficacy testing
Phase III - Expanded efficacy and safety testing
Phase IV - Post-market surveillance