NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What does Pembrolizumab target to treat cancer?

  1. Protein synthesis

  2. Angiogenesis

  3. Immune system

  4. Cell cycle progression

The correct answer is: Immune system

Pembrolizumab is a type of immunotherapy drug known as a checkpoint inhibitor. It works by targeting and blocking a protein called PD-1 on T cells, which are part of the immune system. By blocking PD-1, pembrolizumab helps the immune system recognize and attack cancer cells. This mechanism makes option C, Immune system, the correct answer. Options A, B, and D are incorrect because Pembrolizumab does not target protein synthesis, angiogenesis, or cell cycle progression to treat cancer. It specifically targets the immune system to enhance the body's ability to fight cancer cells.

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