Traws Regulatory Friday, June 12, 2026 -0.65 Negative

Traws Pharma defers Phase 2a influenza study after MHRA regulatory review

Traws Pharma deferred its planned Phase 2a human influenza challenge study for tivoxavir marboxil (TXM) following a negative regulatory review by the UK's MHRA, citing mutagenic concerns. The company is advancing backup antiviral candidates with similar pharmacokinetic profiles while maintaining cash runway through Q1 2027.

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