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BNT 166a

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Drug Profile

BNT 166a

Alternative Names: BNT-166a

Latest Information Update: 03 Feb 2026

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At a glance

  • Originator BioNTech
  • Class RNA vaccines; Viral vaccines
  • Mechanism of Action Immunostimulants
  • Orphan Drug Status

    Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

    No
  • New Molecular Entity No

Highest Development Phases

  • Phase I/II Monkeypox

Most Recent Events

  • 30 Jan 2026 BioNTech SE plans to initiate a phase II trial for Orthopoxvirus-infections (Prevention) in Congo and South Africa (IM) (NCT07379580)
  • 29 May 2024 BioNTech and CEPI expands R&D agreement for BNT 166a for Monkeypox
  • 18 Sep 2023 BioNTech and CEPI agree to co-promote and co-develop BNT 166a for Monkeypox

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