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Pfizer and Valneva Announce Positive Phase 3 VALOR Results

Pfizer and Valneva announced that the Phase 3 VALOR trial of LB6V (PF-07307405) met its primary efficacy endpoint, demonstrating more than 70% efficacy in preventing Lyme disease.

  • 73.2% vaccine efficacy from 28 days post-dose 4
  • 74.8% vaccine efficacy from 1 day post-dose 4
  • • No new safety concerns identified — vaccine was well tolerated
  • • Pfizer planning regulatory submissions to global health authorities

"These Phase 3 results mark a significant milestone in our shared mission to help prevent Lyme disease."
— Annaliesa Anderson, PhD, Pfizer

Read the full press release →
More announcements will be added here as Pfizer and Valneva share updates on regulatory progress and availability.