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Achilles Therapeutics plc (ACHL) CEO Iraj Ali on SITC & Corporate Update Call (Transcript)

Summary of Achilles Therapeutics plc Conference Call Company Overview - Company: Achilles Therapeutics plc (NASDAQ: ACHL) - Focus: Development of precision T cell therapy targeting solid tumors, leveraging tumor evolution research [4][5] Industry Context - Industry: Immuno-oncology, specifically focusing on TIL (tumor-infiltrating lymphocyte) therapies for solid tumors [11] Core Points and Arguments 1. Clinical Trials: Updates were provided on ongoing Phase 1/2 clinical trials, specifically the CHIRON and THETIS trials, which are exploring the efficacy of cNeT (clonal neoantigen-reactive T cells) therapy [10][11] 2. Technology Differentiation: Achilles utilizes a proprietary VELOS manufacturing process that enhances the potency and specificity of TIL therapies by targeting clonal neoantigens unique to each patient's tumor [6][24] 3. TRACERx Study: Exclusive access to the TRACERx study, which has collected extensive genomic data from over 780 non-small cell lung cancer patients, is a significant asset for neoantigen prediction [9] 4. Early Clinical Data: Initial results from the first eight patients showed that 88% had detectable cNeT reactivity, with 63% achieving stable disease, indicating potential efficacy [13][14] 5. Safety Profile: The therapy demonstrated a manageable toxicity profile, with no higher-grade adverse events reported compared to standard therapies [13] 6. Process Improvements: Transitioning to VELOS Process 2 is expected to increase the median cNeT dose by 18-fold compared to Process 1, enhancing the therapeutic potential [20][23] 7. Future Expectations: Plans to explore higher doses and combination therapies with immune checkpoint inhibitors in upcoming studies [15][17] Important but Overlooked Content 1. Financial Position: As of September 30, the company reported a cash balance of $282 million, providing a runway for ongoing trials and manufacturing scale-up [26] 2. Regulatory Submissions: The company plans to file an IND for head and neck squamous cell carcinoma and present GMP data at the December ESMO immuno-oncology meeting [25][23] 3. Patient Access to Tumor Samples: Challenges exist in accessing post-treatment tumor samples for analysis, which could provide insights into T cell infiltration and efficacy [50][51] Conclusion Achilles Therapeutics is positioned to advance the field of immuno-oncology through its innovative approach to TIL therapy, focusing on clonal neoantigens and leveraging proprietary manufacturing processes. The early clinical data and ongoing trials suggest promising potential for improved patient outcomes in solid tumors.