Summary of Terns Pharmaceuticals Conference Call Company Overview - **Company**: Terns Pharmaceuticals - **Product**: Tern 701, an investigational next-generation oral allosteric BCR-ABL inhibitor for chronic myeloid leukemia (CML) treatment [2][41] Industry Context - **Disease**: Chronic Myeloid Leukemia (CML) - **Current Treatments**: First-generation and second-generation active-site tyrosine kinase inhibitors (TKIs) like Imatinib and Asciminib - **Market Need**: Significant unmet need for improved efficacy, safety, and tolerability in CML treatments, with approximately 40% of patients switching therapies within five years due to inadequate response or side effects [4][5] Key Points from the Call Efficacy and Safety Data - **Tern 701 Efficacy**: - Achieved a 75% major molecular response (MMR) and 36% deep molecular response (DMR) at 24 weeks in the recommended phase two dose range of 320 mg and above [8][31] - In a refractory patient population, 64% MMR was achieved by 24 weeks across all doses, with 75% MMR in patients at higher doses [10][22] - DMR rates are approximately two times higher than those seen with Asciminib [22][34] - **Safety Profile**: - Most treatment-emergent adverse events (AEs) were low-grade, with all grade three AEs being less than 10% [8][41] - No signs of pancreatic toxicity or significant blood pressure changes were observed, differentiating Tern 701 from Asciminib [18][41] Competitive Landscape - **Asciminib**: - First allosteric BCR-ABL inhibitor approved for CML, achieving a 22% market share in the U.S. within three quarters of launch and peak sales estimates revised to over $4 billion [5][6] - Tern 701 is positioned to potentially outperform Asciminib based on early clinical data [6][34] Clinical Trial Insights - **Cardinal Study**: - A two-part multicenter global study enrolling patients with chronic phase CML who have failed prior TKIs [12] - Enrollment has accelerated, with over 85 patients currently participating [3][41] Future Development Plans - **Next Steps**: - Plans to select a single dose for pivotal studies based on ongoing data collection and regulatory feedback [38][41] - Anticipated catalysts include expanded long-term data from the Cardinal study and potential regulatory meetings in 2026 [42][41] Market Opportunity - **Patient Population**: - Approximately 17,000 new CML patients annually in G7 nations, with a significant portion expected to switch to allosteric therapies due to better efficacy and tolerability [39][40] - **Treatment Goals**: - Focus on achieving rapid and deep molecular responses to improve long-term outcomes and quality of life for CML patients [39][52] Conclusion - Tern 701 shows promising efficacy and safety data, positioning it as a potential best-in-disease therapy for CML, with ongoing trials and future studies aimed at confirming its clinical benefits and market potential [41][42]