Spero Therapeutics -- Additional Upside Potential Following Positive Phase 3 Results

  • Based on the positive results of the registrational Phase 3 PIVOT-PO study, Tebipenem is expected to be approved under the SPA in mid-2026. Spero will not bear any costs or risks since GSK, as a license partner, will take over commercialization. Approval is expected to trigger in total of $175 million in milestone payments over the next 12 months.