BioNTech (BNTX) Stock Drops 8% After Colorectal Cancer mRNA Vaccine Trial Terminated

NewsFri, 28 Aug 2026 14:56:37 UTC2 hours ago
BioNTech (BNTX) Stock Drops 8% After Colorectal Cancer mRNA Vaccine Trial Terminated

TLDR

  • BioNTech stock fell around 8% Friday after it ended a Phase 2 trial for mRNA cancer vaccine autogene cevumeran in colorectal cancer
  • An independent safety board recommended stopping the trial early, citing futility and an imbalance in survival outcomes between treatment groups
  • This is the second trial failure for autogene cevumeran in 2026, following a bladder cancer halt in March
  • The setback contrasts sharply with last week’s mRNA rally, when Moderna and Merck reported a successful Phase 3 melanoma vaccine trial
  • BioNTech still holds €16.6 billion in cash, and its pancreatic cancer trial remains ongoing

BioNTech stock dropped roughly 8% on Friday after the company and Genentech terminated a Phase 2 clinical trial for their mRNA cancer vaccine in colorectal cancer. The stock was trading around $104 before the announcement.



BioNTech SE, BNTX

The trial was evaluating autogene cevumeran as an add-on treatment for patients with high-risk Stage II or Stage III colorectal cancer following surgery.

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