Index:   Untitled P# - PD     Untitled PE - PH     Untitled PI - PO     Untitled PP - PR     Untitled PS - PZ
  • Phase II Trial: SFAF
    the second stage of the evaluation of a new drug in humans; these trials evaluate drug efficacy, involve more participants (often several hundred) and typically last longer than Phase I studies. Phase II trials may be divided into Phase IIa (pilot trials in patients with the disease to be treated) and phase IIb (well-controlled efficacy trials). Typically Phase II trials are done only if Phase I trials have shown the drug to be safe, but sometimes Phase I and Phase II studies are combined.

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