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- **Breakthrough NSCLC Data**: ivonescimab + chemo delivered 4.24-month PFS improvement (HR 0.60) in HARMONi-6, outperforming tislelizumab across PD-L1 subgroups.
- **Global Expansion**: 14 Phase III studies underway, including first colorectal cancer trial with 600-patient enrollment.
- **FDA Filing Momentum**: BLA submission for EGFR-mutant NSCLC planned Q4 2025; $238.6M cash runway supports aggressive development.
- **Safety Validation**: ivonescimab tolerable in high-risk squamous NSCLC patients with central tumors and hemoptysis history.

**【Management Opening Remarks】**
- Announced Phase III expansion into colorectal cancer and global Phase III study for ivonescimab.
- Highlighted HARMONi-6 data showing 4.24-month PFS improvement vs. tislelizumab in squamous NSCLC.
- BLA submission for ivonescimab + chemo in EGFR-mutant NSCLC planned Q4 2025.

**【CEO Commentary】**
- **HARMONi-6 Results**: 11.14m vs. 6.90m PFS (HR 0.60, p<0.0001), benefit across PD-L1 subgroups, tolerable safety profile.
- Expanded Phase III program to 14 studies across 6 tumor types, including colorectal cancer.
- Protocol amendment for HARMONi-3 to separate squamous and non-squamous analyses, increasing sample size to 1,600 patients.

**【CFO Financial Update】**
- Q3 2025 cash position: $238.6M.
- GAAP operating expenses: $234.2M (down 56% vs. Q2 2025 due to $348M stock comp reversal).
- Non-GAAP operating expenses: $103.4M (up 15% vs. Q2 2025 due to R&D spend on HARMONi-3/7).

**【Q&A Highlights】**
- **FDA Interactions**: BLA submission includes mature data; FDA requires OS benefit for approval, but totality of data (PFS, ORR, safety) supports filing.
- **Funding Strategy**: $350M ATM available; no immediate plans for equity raise, but open to strategic options.
- **Colorectal Trial**: Phase III HARMONi-GI3 to enroll 600 patients, U.S. sites activating Q4 2025.
- **OS Data Timing**: HARMONi-6 OS analysis expected 2026; HARMONi-3 squamous cohort PFS readout Q2 2026.


Summit Therapeutics Inc. (SMMT) Q3 2025 Earnings Call Transcript

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