Key Takeaways Amgen wins FDA approval for Uplizna in generalized myasthenia gravis for adults with key antibody profiles.The drug offers twice-yearly dosing and showed strong efficacy in the phase III MINT study.The approval expands Amgen's rare disease portfolio as Uplizna enters a competitive gMG market.Amgen (AMGN) announced that the FDA has approved its rare disease drug Uplizna (inebilizumab) for a new indication — generalized myasthenia gravis (gMG). The drug is approved to treat the disease in adults ...