Phase I: Tests the safety and dosage of the nanomaterial on a small group of healthy volunteers. Phase II: Evaluates the efficacy and side effects on a larger group of people who have the condition the nanomaterial is meant to treat. Phase III: Confirms efficacy and monitors adverse reactions in a larger population, comparing it to standard treatments. Phase IV: Conducts post-marketing studies to gather additional information on risks, benefits, and optimal use.
