Pfizer and Valneva Lyme Vaccine PF-07307405 Enters EMA Review

RegulationProduct / Tech
โดย Insider Monkey·EU·Read original
Summary · why it matters

The European Medicines Agency has validated the Marketing Authorization Application for PF-07307405, the experimental Lyme disease vaccine candidate from Pfizer and French biotech Valneva, and will now begin its official review. The filing rests on the Phase 3 VALOR trial, a placebo-controlled, randomized study of 9,437 participants aged five and older in high-incidence Lyme disease locations across the US, Canada, and Europe, which reported efficacy of over 70% in reducing confirmed Lyme disease cases with no safety issues detected. The statistical picture was less clean than the headline number: the first prespecified analysis, which served as the primary endpoint, showed 73.2% efficacy but failed the trial's predefined statistical criterion because the lower bound of the 95% confidence interval was 15.8%, below the required 20%, while a second prespecified analysis showed 74.8% efficacy and did meet that threshold. Under the 2020 partnership and license agreement, Pfizer holds exclusive rights to produce and commercialize the vaccine if approved, with Valneva benefiting as development partner; Valneva says PF-07307405 is the most advanced Lyme disease vaccine candidate currently in clinical development. Pfizer shares were essentially flat on the news, and hedge fund ownership stood at 83 funds in the second quarter of 2026, unchanged from the first quarter, while Valneva's hedge fund exposure rose to 4 funds from 1. MAA validation means the application meets the standards for the EMA to begin evaluating it, not that approval is near or guaranteed, and formal reviews of this nature often take many months to complete.

Impact on stocks 2

Biotech & Genomic Medicine · 1 stocks
Pfizer Inc
PFE
▲ PositiveRegulationrelevance

EMA validated Pfizer's Marketing Authorization Application for Lyme vaccine candidate PF-07307405, advancing it into formal regulatory review.

Health Care · 1 stocks
Valneva SE
VLA
▲ PositiveRegulationrelevance

EMA validated the MAA for PF-07307405, Valneva's most advanced Lyme vaccine candidate developed under its Pfizer partnership.

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