Pharmacology · single question

Which monoclonal antibody carries the major risk for MRONJ (medication-related osteonecrosis of the jaw)?

  1. Denosumab
  2. Bevacizumab
  3. Adalimumab
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Correct answer: A. Denosumab

Denosumab is a monoclonal antibody that directly inhibits RANKL, powerfully suppressing osteoclast activity (similar antiresorptive effect to bisphosphonates) — making it the antibody most strongly and specifically linked to MRONJ. Bevacizumab (an antiangiogenic antibody) carries a real but comparatively lower MRONJ risk, and adalimumab (an anti-TNF immunosuppressant used for autoimmune disease) is not significantly associated with MRONJ.

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