- A potential best- and first-in-class antibody-drug conjugate (ADC) for the treatment of EGFR-expressing solid tumors, ALX2004 is uniquely designed with every component optimized to maximize the therapeutic window by reducing toxicity

SOUTH SAN FRANCISCO, Calif., May 13, 2025 (GLOBE NEWSWIRE) -- ALX Oncology Holdings Inc., ("ALX Oncology" or the "Company") (Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives, today announced that it will host a webcast event on May 20, 2025, to provide an update on ALX2004, the Company's potentially best- and first-in-class investigational antibody-drug conjugate (ADC). The webcast will highlight the novel mechanism of action, preclinical data and clinical development strategy for ALX2004 following clearance of the Investigational New Drug application from the U.S. Food and Drug Administration earlier this year.

Following announcement of prioritized development strategy for evorpacept in combination with anti-cancer antibodies at R&D Day in March, Company is on track to initiate Phase 2 ASPEN-Breast and Phase 1 ASPEN-CRC studies in mid-2025 IND clearance received from U.S. FDA for novel EGFR-targeted antibody-drug conjugate (ADC), ALX2004, paving way for mid-year clinical program initiation; Company to host webcast focused on ALX2004 research program on May 20 Company will not pursue U.S. registrational path in gastric cancer following receipt of FDA feedback that accelerated approval pathway is not feasible based on ASPEN-06 due to standard-of-care evolving to ENHERTU® Data milestones expected across Company's three clinical programs in 2026 Cash runway has been extended into Q4 2026 SOUTH SAN FRANCISCO, Calif., May 08, 2025 (GLOBE NEWSWIRE) --  ALX Oncology Holdings Inc., (“ALX Oncology” or “the Company”) (Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives, today reported financial results for the first quarter ended March 31, 2025, and provided a corporate update.

SOUTH SAN FRANCISCO, Calif., May 02, 2025 (GLOBE NEWSWIRE) -- ALX Oncology Holdings Inc., (“ALX Oncology” or the “Company”) (Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives, today announced plans to report its first quarter 2025 financial results on Thursday, May 8th, 2025, before market open.

- Data to be presented at AACR 2025 Annual Meeting suggest the combination of ALX Oncology's investigational CD47-blocker, evorpacept, plus rituximab and lenalidomide (R 2 ) was well-tolerated and demonstrated promising anti-tumor activity

SOUTH SAN FRANCISCO, April 25, 2025 (GLOBE NEWSWIRE) -- ALX Oncology Holdings Inc., (“ALX Oncology” or the “Company”) (Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients' lives, today announced topline data from its Phase 2 ASPEN-03 and ASPEN-04 clinical trials. The company's investigational CD47-blocker evorpacept, when added to Merck's (known as MSD outside of the US and Canada) anti-PD-1 therapy, KEYTRUDA® (pembrolizumab) with or without chemotherapy, did not meet the primary endpoints in the ASPEN-03 and ASPEN-04 trials of improved objective response rates (ORR) as compared to historical controls of pembrolizumab alone and pembrolizumab with chemotherapy, respectively, as a first-line treatment in patients with advanced head and neck squamous cell carcinoma (HNSCC). The combination of evorpacept and pembrolizumab with or without chemotherapy in ASPEN-03 and ASPEN-04 demonstrated a manageable safety profile and was consistent with what has been previously reported for pembrolizumab and chemotherapy in this setting. Although the company will no longer pursue evorpacept in combination with pembrolizumab in HNSCC, multiple clinical trials of evorpacept in combination with anti-cancer antibodies will continue based on established proof-of-concept.

– Presented positive updated data from ASPEN-06 Phase 2 trial demonstrating evorpacept generates strong response and durable clinical benefit in patients with HER2-positive gastric cancer in an oral presentation at 2025 ASCO GI

Event to include updates on ongoing evorpacept clinical development program and introduction of clinical trials in breast and colorectal cancers Advancing novel EGFR-targeted antibody-drug conjugate (ADC) candidate, ALX2004, into clinical-stage development with IND submission planned for Q1 2025 Company implements strategic prioritization, resource optimizations and reductions to extend cash runway into Q4 2026 Webcast featuring company leadership and external key opinion leaders to take place today at 6:00 a.m. PT/9:00 a.m.