Japan approval for Amgen eye drug Tepezza

25 September 2024

US biotech giant Amgen (Nasdaq: AMGN) yesterday revealed that Tepezza (teprotumumab [genetical recombination]) has been approved for the treatment of active or high clinical activity score (CAS) thyroid eye disease (TED) by Japan’s Ministry of Health, Labor and Welfare (MHLW).

Amgen noted that TED is a serious, progressive and potentially vision-threatening rare autoimmune disease that can cause proptosis (eye bulging), diplopia (double vision), eye pain, redness and swelling. There are approximately 25,000-35,000 people living with TED in Japan, inclusive of both active and chronic (low CAS) TED. Tepezza is now the first and only medicine approved in Japan to treat active TED. A separate trial to study the efficacy of TEPEZZA in chronic TED patients in Japan is currently ongoing.

First approval in Asia

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