In medical product development, which phase typically requires the largest number of human participants before FDA approval can be granted?

In the complex world of medical product development, regulatory approvals mark critical milestones before life-saving devices and medications reach patients. This poll tests your knowledge about the development timeline for medical innovations. Understanding these processes is crucial for healthcare professionals, product managers, and regulatory specialists working to bring new medical solutions to market.

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Phase I Clinical Trials (Safety Testing)
Phase II Clinical Trials (Efficacy Testing)
Phase III Clinical Trials (Large-Scale Testing)
Post-Marketing Surveillance (Phase IV)