FDA approves GSK’s Shingrix to prevent shingles in immunocompromised adults 

GlaxoSmithKline (NYSE:GSK) received permission from FDA to expand the use of its Shingrinx shingles vaccine to include immunocompromised and immunosuppressed adults 18 years old or older.

Having won initial FDA approval in 2017 for individuals 50 and older, the shingles (herpes zoster) vaccine is a non-live, recombinant subunit adjuvanted vaccine. Shingrix is the first shingles vaccine to win an indication for people who are immunodeficient or immunosuppressed.

Approximately 1 million people develop shingles in the U.S. each year, according to the CDC.

GSK has gained shingles vaccine market share since November 2020, when Merck (NYSE:MRK) discontinued Zostavax, a rival shingles vaccine. Zostavax initially won approval in 2017 and was previously the only shingles vaccine available in the U.S.

The FDA decided based on clinical studies involving adults 18 or older who had undergone an autologous hematopoietic stem cell transplant (auHSCT). Ad…

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