Strong Clinical Efficacy Signals in Phase Ib Expansion
Phase Ib expansion (approx. 90 patients across 3 cohorts) showed deep, durable responses. The 1,500 mg weekly + pembrolizumab cohort has median duration of response of 21.7 months and median overall survival of 21.3 months — described as more than doubling overall survival versus standard-of-care pembrolizumab in HPV-negative patients (>100% improvement).
High Depth of Response
Management reported that more than 80% of patients achieved a tumor depth of response of 80% or greater in cohorts evaluated, supporting the TGF-beta inhibition hypothesis as a driver of durability and tumor penetration.
Regulatory & Pivotal Pathway Progress
FORTIFI-HN01 enrollment is on track for substantial completion by year-end with an interim analysis planned mid-2027 for potential accelerated approval based on overall response rate with 6 months' durability (and qualitative OS).
Alternative Dosing Study Planned (Potential Commercial Benefit)
Based on FDA discussions, an alternative dosing (12-week 1,500 mg weekly loading then randomized to 1,500 mg weekly vs 2,250 mg every-3-weeks maintenance) will start in Q3, enrolling ~150–200 patients with PFS as the primary endpoint to support a more convenient regimen for patients/providers and life-cycle management.
Peer-Reviewed Publication & Upcoming ASCO Data
Peer-reviewed manuscript published in Journal of Clinical Oncology describing Phase Ib expansion (1,500 mg weekly cohort). ASCO 2026 will present updated data including 3-year follow-up for the 1,500 mg cohort and longer-term endpoints for the 750 mg and 2,000 mg cohorts, expanding evidence of durability and safety.
Strengthened Balance Sheet and Runway
Completed an oversubscribed public offering in February generating $161.8 million net proceeds; ended Q1 2026 with $539.8 million in cash, equivalents and marketable securities, providing runway into the first half of 2029 to support pivotal development and early commercial investments.
Commercial and Organizational Build-Out
Transition to commercial-stage leadership: new Chief Commercial Officer (Chris Sarchi) hired and internal promotion of Bill Schelman to CMO; management is building market access, commercial operations and prelaunch infrastructure ahead of potential launch.
Large Market Opportunity and Strategic Focus
Head and neck cancer market projected >$5 billion into the 2030s, ~50,000 annual incident patients globally and ~18,000 in the U.S.; strategy focused initially on HPV-negative frontline recurrent/metastatic patients where HPV status is known at diagnosis and unmet need is high.