ELVN-001 Positioning and Market Opportunity - The BCR::ABL1 TKIs market has historically generated approximately $6 billion in combined annual sales, even with generic options available[10] - There is a potential $9 billion opportunity in the U S alone for differentiated TKIs, which is validated by the successful launch of Scemblix[10] - The U S branded CML market has the potential to reach approximately $9 billion based on historical sales, adjusted for current prevalence and pricing[28] CML Landscape and Treatment - Prior to imatinib, the annual CML survival rate was less than 20%[14] - The 10-year survival rate for CML improved from less than 20% to over 80%[14] - Approximately 30% of second-line patients switch therapy within the first year of treatment[22] - Approximately 25% of first-line patients switch therapy within the first year[22] - In Q1 2025, Novartis reported Scemblix NBRx of 40% in 2L and 10% in 1L in the U S, highlighting the need for improved treatment options across all lines of therapy[32] ELVN-001 Clinical Data and Development - In the Phase 1 trial, the overall MMR (BCR::ABL1 ≤ 0 1%) by 24 weeks was 47% (25/53)[68] - 80% of patients in the ELVN-001 Phase 1 trial remained on the study, with a median duration of exposure of 29 weeks[58, 59] - The company expects to initiate the first ELVN-001 head-to-head pivotal trial in 2026[10]

Enliven Therapeutics (ELVN) Update Summary Company Overview - **Company**: Enliven Therapeutics - **Program**: ELVN001, targeting chronic myeloid leukemia (CML) Industry Context - **Market Size**: CML represents a large market with significant unmet needs, with a potential $9 billion opportunity in the U.S. alone [doc id='45'] - **Current Treatment Landscape**: The treatment of CML has evolved, focusing on quality of life and tolerability, with approximately 30% of patients switching therapies within a year due to intolerance or lack of response [doc id='7'][doc id='8'] Core Points and Arguments 1. **ELVN001's Potential**: ELVN001 is designed to address unmet needs in CML and has shown a potentially best-in-class profile in heavily pretreated patients [doc id='5'][doc id='6'] 2. **Regulatory Pathway**: Historical phase one data in CML has accurately predicted success in pivotal trials, allowing for smaller and faster studies [doc id='5'] 3. **Patient Population**: The ongoing phase one trial has enrolled a heavily pretreated population, with 72% of patients having discontinued their last TKI due to lack of efficacy [doc id='20] 4. **Efficacy Results**: - 47% of patients achieved major molecular response (MMR) by 24 weeks, with 32% achieving MMR and 100% maintaining MMR [doc id='24'] - 77% of patients achieved MR2 by 24 weeks, indicating robust efficacy despite the heavily pretreated population [doc id='25] 5. **Comparison with Osiminib**: ELVN001's efficacy appears favorable compared to osiminib, with a higher MMR rate in a more heavily pretreated population [doc id='27][doc id='36'] 6. **Safety Profile**: ELVN001 has shown a favorable safety profile, with low rates of dose reductions and discontinuations due to adverse events [doc id='31][doc id='34] 7. **Dosing Convenience**: ELVN001 supports once-daily dosing with or without food, addressing key challenges with current TKIs [doc id='34][doc id='77] Additional Important Insights - **Market Dynamics**: The CML market supports multiple blockbuster drugs despite the presence of generics, with TKI switching dynamics indicating a need for better treatment options [doc id='12] - **Emerging Competition**: Osiminib has rapidly penetrated earlier lines of therapy, but high discontinuation rates (50% within two years) indicate a significant opportunity for ELVN001 [doc id='11] - **Next Steps**: Enliven Therapeutics plans to initiate a pivotal trial for ELVN001 in 2026, with a focus on both late-line and frontline settings [doc id='16][doc id='44] Conclusion - Enliven Therapeutics is optimistic about the potential of ELVN001 to become a preferred treatment option for CML, with a clear regulatory path and promising early data supporting its efficacy and safety profile [doc id='46]