EU regulator backs single‑dose Bexsero booster for adolescents and older

On 13 Nov 2026 the EMA’s CHMP issued a positive opinion to add a one‑time booster of GSK’s Bexsero vaccine for people 10 years and older who received the original series at least two years before. The recommendation relies on a Phase IIIb trial of 312 participants aged 10‑20 that met its primary endpoint and showed a strong immune response and safety profile. GSK’s share price moved higher after the news, rising roughly 0.8% to about 1,916 pence.

The regulator’s endorsement could lead to label changes and wider use of the booster, potentially increasing Bexsero sales in Europe. GSK’s stock responded positively, gaining about 0.8% on the day of the announcement.

  • 1The CHMP issued a positive opinion to add a single booster dose to Bexsero’s label for individuals 10 years and older who were vaccinated at least two years earlier.
  • 2The opinion is based on the Men‑B‑096 Phase IIIb study that enrolled 312 participants aged 10‑20 across Finland, Italy, Spain and the United Kingdom.
  • 3The trial met its primary endpoint, demonstrating a stronger immune response and a safety profile consistent with previous data.
  • 4Data indicate that immune memory from infant vaccination can be re‑stimulated up to 19 years later.
  • 5GSK shares rose about 0.79% to roughly 1,916 pence following the announcement.
  • 6The announcement was made on 13 Nov 2026.

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