# Ascentage Pharma Group International is a global, commercial-stage, integrated biopharmaceutical company.

*biotech · news · 2026-05-22 · Wallstreet Online*

## Key points

- Six Ascentage Pharma clinical study abstracts were selected for presentation at ASCO 2026.
- Three studies will be rapid oral presentations, highlighting olverembatinib, lisaftoclax, and alrizomadlin.
- In a phase Ib study, olverembatinib plus blinatumomab led to four of five patients achieving complete response.
- Two of these patients additionally achieved measurable residual disease negativity with a manageable safety profile.

ROCKVILLE, Md. and SUZHOU, China, May 21, 2026 (GLOBE NEWSWIRE) -- Ascentage Pharma Group International (NASDAQ: AAPG; HKEX: 6855), a global, commercial-stage, integrated biopharmaceutical company engaged in the discovery, development and commercialization of novel, differentiated therapies to address unmet medical needs in cancer, today announced that six abstracts from its clinical studies, selected for presentation at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting, are now available on ASCO’s official website. Three of the six studies have been selected for rapid oral presentations, and three as poster presentation. These abstracts report data from ongoing studies evaluating the company’s three lead drug candidates, including BCR-ABL inhibitor olverembatinib(HQP1351); Bcl-2 inhibitor lisaftoclax (APG-2575); and MDM2-p53 inhibitor alrizomadlin (APG-115). This year’s ASCO Annual Meeting will take place in person at McCormick Place in Chicago, IL, and online, May 29 – June 2, 2026. The ASCO Annual Meeting showcases cutting-edge research in clinical oncology and advanced cancer therapies and is the world’s largest gathering in the clinical oncology community. The key clinical results from Ascentage Pharma’s abstracts selected for the 2026 ASCO Annual Meeting are as follows: Rapid Oral Presentations Olverembatinib (HQP1351) combined with blinatumomab in patients with lymphoid blast phase chronic myeloid leukemia (CML-LBP) or Philadelphia chromosome-positive B-cell precursor acute lymphoblastic leukemia (Ph+ BCP-ALL) Abstract #: 6513 Session Title: Hematologic Malignancies—Leukemia, Myelodysplastic Syndromes, and Allotransplant Date and Time: May 30, 2026, 1:51 - 1:57 p.m., Central Time (May 31, 2026, 2:51 - 2:57 a.m., Beijing Time) First Author: Elias Jabbour, MD, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX Highlights: This multicenter, open-label phase Ib study evaluated the combination of olverembatinib and blinatumomab in patients with relapsed/refractory (R/R) Ph+ BCP-ALL or CML-LBP. Among five patients with measurable residual disease (MRD) positivity and no complete response (CR) at study entry, four achieved CR, and two achieved MRD negativity, with an overall manageable safety profile. This study provides initial clinical evidence supporting the feasibility of combining olverembatinib with immunotherapy in patients with CML-LBP and R/R Ph+ BCP-ALL in an international patient population. Seite 1 von 6 Seite 2 ►

**Companies:** Ascentage Pharma Group International
**Countries:** United States, China

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