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Celltrion and Must Bio’s Triple Antibody Deal –  Billion Down Payment

Celltrion and Must Bio’s Triple Antibody Deal – $3 Billion Down Payment

October 31, 2025 Victoria Sterling -Business Editor Business

Celltrion‌ & must Bio: PD-1xVEGFxIL-2v Antibody Deal

  • What: Celltrion licensed-in a PD-1xVEGFxIL-2v triple fusion protein antibody from Must Bio.
  • Where: South Korea (Both companies​ are based ther).
  • When: Announced January‍ 31st (year not specified in source, assumed⁢ 2024).
  • Why it Matters: Celltrion⁢ enters the competitive PD-(L)1xVEGF immunotherapy space with a differentiated triple‌ antibody, potentially targeting all​ solid carcinomas.
  • What’s Next: ⁢ Celltrion​ will jointly develop and globally sell the antibody, with potential milestone payments and sales revenue.

This deal highlights the growing trend of bispecific and now *trispecific* antibodies in cancer immunotherapy. The addition ​of⁢ an IL-2 variant is a key differentiator, aiming ⁢too ⁤enhance ‌the​ drug’s efficacy and potentially broaden its applicability.Celltrion’s aggressive move into this space signals confidence in the potential of this⁤ novel approach. The ample⁤ financial commitment (up to⁢ KRW 712.5 billion) underscores the high stakes and potential rewards. Competition in ‍the PD-1/PD-L1 space is ‌fierce, so demonstrating “best-in-class” performance ⁢will be crucial for success.

– victoriasterling

Deal Details: Celltrion & Must Bio

Financial Term Amount (KRW)
Upfront Payment 3 billion
Growth Milestones Up to 39.5 billion
Potential Net Sales (upon ⁣KRW 10 trillion achievement) Up to ​670 billion
Total ‌Potential Value 712.5 billion

Celltrion has secured rights to ⁢a PD-1xVEGFxIL-2v triple fusion protein candidate antibody from MustBio. This antibody combines PD-1, VEGF, and an IL-2 variant⁤ cytokine mechanism. The goal is to develop a “best-in-class” drug capable of targeting all solid carcinomas.

Key Players:

  • Celltrion: Acquiring and developing the antibody.
  • Must Bio: Original developer of the PD-1xVEGFxIL-2v triple antibody.
  • Maengseop Kim: CEO of Must Bio

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