Summary of ALX Oncology FY Conference Call Company Overview - **Company**: ALX Oncology (NasdaqGS:ALXO) - **Key Programs**: Evorpacept and ALX 2004, both in clinical stages and differentiated in their class [2][3] Core Industry Insights - **Focus on CD47**: Evorpacept targets CD47, a critical immune checkpoint in oncology, which has been challenging to target effectively [3][4] - **EGFR-targeted ADC**: ALX 2004 is a novel antibody-drug conjugate (ADC) targeting EGFR, designed to minimize on-target toxicity while maximizing efficacy [21][22] Key Data and Findings - **Evorpacept Data**: - Presented at SITC with promising results in gastric cancer (Aspen-06) showing a 65% response rate in CD47 overexpressing HER2-positive patients, a significant improvement over the control arm [12][14] - Combination studies with Rituxan and Evorpacept showed complete response rates of 83% and 92% in different settings [13] - **ALX 2004 Progress**: - Currently in phase one trials, with successful completion of initial dose cohorts and a focus on optimizing the linker payload for better delivery and efficacy [4][31] - Preclinical data indicates superior bystander effects and reduced toxicity compared to existing EGFR-targeted therapies [27][29] Market Opportunity - **HER2-positive Breast Cancer**: - Estimated addressable patient population of 20,000, with a market opportunity valued between $2 billion to $4 billion [20] - Current treatments show response rates of 15% to 20%, indicating a significant unmet need for effective therapies post-HER2 treatment [19] Strategic Collaborations - **Partnerships**: Collaborations with Sanofi for combination studies in multiple myeloma, leveraging the high expression of CD47 in hematologic malignancies [46][47] Future Catalysts - **Upcoming Data Releases**: - Interim data for Evorpacept expected in Q3 2026, which will be crucial for validating the biomarker-driven approach [33] - Continued dose escalation and data sharing for ALX 2004 to elucidate its safety profile [34] Conclusion - ALX Oncology is positioned to potentially lead in the CD47 and EGFR-targeted therapy spaces with differentiated mechanisms and promising clinical data, addressing significant unmet medical needs in oncology [35][36]

Summary of ALX Oncology Holdings FY Conference Call Company Overview - **Company**: ALX Oncology Holdings (NasdaqGS:ALXO) - **Founded**: 2015 - **Lead Program**: Evorpacept, a CD47 blocker with a unique mechanism of action - **New Program**: ALX 2004, an EGFR-targeted antibody-drug conjugate (ADC) currently in clinical trials [2][4] Core Points and Arguments CD47 Mechanism and Evorpacept - Evorpacept is designed to block the "don't eat me" signal from CD47, which is crucial for immune evasion by cancer cells [2][3] - The company claims to be the only CD47 blocker in development with a dead Fc, allowing for full blockade of the "eat me" signal [3] - The approach has been validated through four clinical studies, demonstrating its potential effectiveness [3] Clinical Trials and Results - **Gastric Cancer Trial**: - Phase 2 trial showed a 41% overall response rate (ORR) for evorpacept plus TRP compared to 26% in the control arm [9] - In patients retaining HER2 positivity, the response rate was 49% versus 25% in the control arm, with a median duration of response of 15.7 months [11] - The FDA did not grant accelerated approval due to the availability of Enhertu, leading the company to refocus on breast cancer [9][11] - **Breast Cancer Studies**: - The company is advancing a study combining evorpacept with Herceptin and chemotherapy, with interim data expected in Q3 2026 [16][17] - The study aims to evaluate efficacy based on CD47 expression levels [16] Biomarker Development - The company is developing a companion diagnostic to identify patients with high CD47 expression, which is crucial for treatment selection [15][16] - CD47 is recognized as a poor prognostic marker across various cancers, but its predictive use for treatment decision-making is still under development [15] ALX 2004 Development - ALX 2004 is an EGFR-targeting ADC developed in-house, with a focus on optimizing linker payloads and epitope selection to address past challenges in EGFR-targeted therapies [22][23] - The phase 1 trial is being conducted in multiple solid tumors, with initial safety data expected in the first half of 2026 [24][25] Competitive Landscape - The company believes it has a unique asset in ALX 2004, with a distinct epitope and linker payload compared to existing EGFR-targeted ADCs [25][26] - There is competition from various ADCs, particularly from China, but ALX Oncology claims to be first in treating U.S. patients with this specific approach [26] Financial Position and Future Outlook - The company has sufficient cash to support operations through Q1 2027, with several important milestones expected in the next 12 months [27] - Key upcoming events include safety data for ALX 2004 and interim data for the breast cancer study involving evorpacept [27] Additional Important Points - The company is exploring partnerships, particularly in Asia, to expand its market reach for gastric cancer treatments [14] - The strategic shift towards focusing on anti-cancer antibodies for evorpacept combinations reflects a response to clinical learnings over the past decade [5][6]