- 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 -First-in-human trial of ALX2004 builds upon body of positive preclinical data demonstrating dose dependent anti-tumor activity and favorable safety profile -Initial safety data anticipated in first half 2026 SOUTH SAN FRANCISCO, Calif., Aug. 19, 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 the first patient has been dosed in the Company's Phase 1 clinical trial for ALX2004, a potential best- and first-in-class, epidermal growth factor receptor (EGFR) ADC that is being studied for the treatment of EGFR-expressing solid tumors.

ALX Oncology Holdings Inc. (NASDAQ:ALXO ) Q2 2025 Earnings Conference Call August 12, 2023 4:30 AM ET Company Participants Alan Bart Sandler - Chief Medical Officer Harish Shantharam - Chief Financial Officer Jason W. Lettmann - CEO & Director Conference Call Participants Allison Marie Bratzel - Piper Sandler & Co., Research Division Li Wang Watsek - Cantor Fitzgerald & Co., Research Division Roger Song - Jefferies LLC, Research Division Samuel Evan Slutsky - LifeSci Capital, LLC, Research Division Ting Liu - UBS Investment Bank, Research Division Yu He - H.C.

– Data from ASPEN-06 trial highlights CD47 expression as a key predictive biomarker of greater response to evorpacept in HER2+ Gastric Cancer; updated data to be presented at a medical conference in Q4 2025

SOUTH SAN FRANCISCO, Calif., Aug. 05, 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 second quarter 2025 financial results and a business update on Tuesday, August 12th, 2025, after market close.

SOUTH SAN FRANCISCO, Calif., May 30, 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 management will participate in the Jefferies 2025 Global Healthcare Conference. Details are as follows:

- 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