Antengene to Release Preliminary Results of Selinexor for the Treatment of Peripheral T-Cell Lymphoma and NK/T-Cell Lymphoma at the 2021 ASH Annual Meeting

SHANGHAI and HONG KONG, Nov. 9, 2021 /PRNewswire/ -- Antengene Corporation Limited (“Antengene”, SEHK: 6996.HK), a leading innovative global biopharmaceutical company dedicated to discovering, developing and commercializing first-in-class and/or best-in-class therapeutics in hematology and oncology, today announced the acceptance of an abstract at the upcoming 2021 American Society of Hematology (ASH) Annual Meeting, which will be held from December 11-14, 2021, both in Atlanta, Georgia, and virtually at https://www.hematology.org/meetings/annual-meeting.

Antengene will release preliminary results of this Company-sponsored open-label Phase 1b study with selinexor (ATG-010) for the treatment of peripheral T-cell lymphoma and NK/T-cell lymphoma, in an offline poster presentation (full text of the abstract available at: https://ash.confex.com/ash/2021/webprogram/Paper147100.html). Meanwhile, another seventeen abstracts related to selinexor and eltanexor will be presented at the 2021 ASH Annual Meeting as announced by Antengene’s partner, Karyopharm Therapeutics, Inc. (Karyopharm) (see below for details of these abstracts).

“We are very pleased that the poster related to Antengene’s selinexor (ATG-010) T-Cell Lymphoma program has been accepted at the 2021 ASH Annual Meeting,” said Jay Mei, M.D., Ph.D., Founder, Chairman and Chief Executive Officer of Antengene. “Selinexor is Antengene’s first commercial stage product. We look forward to sharing more about this program following the poster session.”

Details of the abstract that has already been published on the ASH website are as follows:

XPO1 Inhibitor (ATG-010) Plus Chemotherapy per Investigator’s Choice for Heavily Pretreated Patients with Relapsed or Refractory (R/R) Peripheral T-Cell Lymphoma (PTCL) and Extranodal NK/T-Cell Lymphoma (ENKTL)：Preliminary Results from a Multicenter, Single-Arm Phase Ib Study (TOUCH Trial) (Abstract# 2452)

Session:
624. Hodgkin Lymphomas and T/NK cell Lymphomas: Clinical and Epidemiological: Poster II
Abstract #: 2452
Date and Time: Sunday, December 12, 2021 at 6:00 - 8:00 p.m. ET
Venue: Hall B5, Georgia World Congress Center

Details of these abstracts announced by Karyopharm in a press release dated November 4, 2021.

In total, 17 abstracts were selected for presentation at the meeting, including five oral presentations and 12 posters.

Oral Presentations

Title: A Phase 2 Study to Evaluate the Efficacy and Safety of Selinexor in Patients with Myelofibrosis Refractory or Intolerant to JAK Inhibitors
Presenter: Srinivas Tantravahi, University of Utah
Abstract #: 143
Session Type: Oral Presentation
Session: Myeloproliferative Syndromes: Clinical and Epidemiological: Non-JAK Inhibitor Therapies for Myelofibrosis
Date and Time: Saturday, December 11, 2021 at 1:00 p.m. ET

Title: Transcriptomic Correlates of Response to Selinexor in Multiple Myeloma Reveal a Predictive Signature
Presenter: Paula Restrepo, Icahn School of Medicine at Mount Sinai
Abstract #: 457
Session Type: Oral Presentation
Session: Multiple Myeloma and Plasma Cell Dyscrasias: Clinical and Epidemiological: Multiple Myeloma and Waldenstrom Macroglobulinemia: Exploring Biomarkers in the Era of Personalized Medicine
Date and Time: Sunday, December 12, 2021 at 12:00 p.m. ET

Title: Enhanced p53 Activation by Dual Inhibition of MDM2 and XPO1 Disrupts MYC Transcriptional Program and Restores Sensitivity to BCL-2 Inhibition in Ven/HMA Resistant AML
Presenter: Yuki Nishida, Saga University
Abstract #: 505
Session Type: Oral Presentation
Session: Molecular Pharmacology and Drug Resistance: Myeloid Neoplasms: Novel Strategies to Overcome Resistance to BCL-2 Inhibition
Date and Time: Sunday, December 12, 2021 at 4:30 p.m. ET

Title: Rationale for Selinexor Treatment in Daratumumab-Refractory MM Patients Identified by Paired Ex Vivo Drug Sensitivity and RNA-Seq
Presenter: Suresh Kumar Balasubramanian, Wayne State University
Abstract #: 683
Session Type: Oral Presentation
Session: Molecular Pharmacology and Drug Resistance: Lymphoid Neoplasms: Targeting
Mitochondrial Survival Pathways
Date and Time: Monday, December 13, 2021 at 3:45 p.m. ET

Title: Comparison of Salvage Autologous Hematopoietic Cell Transplantation with Outcomes Following Selinexor Combinations Among Double/Triple Refractory Myeloma Patients
Presenter: Praneeth Sudalagunta, H Lee Moffitt Cancer Ctr
Abstract #: 893
Session Type: Oral Presentation
Session: Multiple Myeloma and Plasma Cell Dyscrasias: Basic and Translational: Myeloma Pathogenesis and Novel Targets
Date and Time: Monday, December 13, 2021 at 7:15 p.m. ET

Poster Presentations

Title: Efficacy and Safety of Selinexor-Containing Regimens in Patients with Multiple Myeloma Previously Treated with Anti-CD38 Monoclonal Antibodies (αCD38 mAb)
Presenter: Suzanne Lentzsch, Columbia University Irving Medical Center
Abstract #: 1651
Session Type: Poster Presentation
Session: Myeloma and Plasma Cell Dyscrasias: Clinical-Prospective Therapeutic Trials: Poster I
Date and Time: Saturday, December 11, 2021 at 5:30 – 7:30 p.m. ET

Title: Effects of Cytogenetic Risk on Outcomes in Multiple Myeloma Treated with Selinexor, Bortezomib, and Dexamethasone (XVd)
Presenter: Nizar Bahlis, University of Calgary
Abstract #: 1634
Session Type: Poster Presentation
Session: Multiple Myeloma and Plasma Cell Dyscrasias: Clinical and Epidemiological: Poster I
Date and Time: Saturday, December 11, 2021 at 5:30 – 7:30 p.m. ET

Title: Selinexor in Combination with Daratumumab-Bortezomib and Dexamethasone for the Treatment of Relapse or Refractory Multiple Myeloma: Initial Results of the Phase 2, Open-label, Multicenter GEM-SELIBORDARA Study
Presenter: Paula Rodríguez- Otero, Clínica Universidad de Navarra
Abstract #: 1677
Session Type: Poster Presentation
Session: Myeloma and Plasma Cell Dyscrasias: Clinical-Prospective Therapeutic Trials: Poster I
Date and Time: Saturday, December 11, 2021 at 5:30 – 7:30 p.m. ET

Title: Once Weekly Oral Selinexor, Pomalidomide, and Dexamethasone in Relapsed Refractory Multiple Myeloma
Presenter: Darrell White, QEII Health Sciences Center, Dalhousie University
Abstract #: 2748
Session Type: Poster Presentation
Session: Myeloma and Plasma Cell Dyscrasias: Clinical-Prospective Therapeutic Trials: Poster II
Date and Time: Sunday, December 12, 2021 at 6:00 – 8:00 p.m. ET

Title: Selinexor-Based Regimens in Patients with Multiple Myeloma after Prior Anti-B-Cell Maturation Antigen Treatment
Presenter: Muhamed Baljevic, University of Nebraska Medical Center
Abstract #: 2751
Session Type: Poster Presentation
Session: Myeloma and Plasma Cell Dyscrasias: Clinical-Prospective Therapeutic Trials: Poster II
Date and Time: Sunday, December 12, 2021 at 6:00 – 8:00 p.m. ET

Title: Single Cell RNA Sequencing of a Selinexor Clinical Trial Reveals Overexpression of Alternative Nuclear Export Pathways Associated with Resistance to Selinexor in RRMM Patients
Presenter: Yael Cohen, Tel Aviv Sourasky Medical Center
Abstract #: 2725
Session Type: Poster Presentation
Session: Multiple Myeloma and Plasma Cell Dyscrasias: Clinical and Epidemiological: Poster I
Date and Time: Sunday, December 12, 2021 at 6:00 – 8:00 p.m. ET

Title: Selinexor Enhances NK Cell Activation Against Lymphoma Cells Via Downregulation of HLA
Presenter: Matthew Blunt, University of Southampton
Abstract #: 2411
Session Type: Poster Presentation
Session: Lymphomas: Translational—Non-Genetic: Poster II
Date and Time: Sunday, December 12, 2021 at 6:00 – 8:00 p.m. ET

Title: Molecular Response Patterns in Relapsed/Refractory AML Patients Treated with Selinexor and Chemotherapy
Presenter: Piroska Klement, Hannover Medical School
Abstract #: 2369
Session Type: Poster Presentation
Session: Acute Myeloid Leukemias: Biomarkers, Molecular Markers and Minimal Residual Disease in Diagnosis and Prognosis: Poster II
Date and Time: Sunday, December 12, 2021 at 6:00 – 8:00 p.m. ET

Title: Updated Efficacy of Eltanexor Monotherapy in Patients with Higher Risk Hypomethylating Myelodysplastic Syndrome Primary Refractory to Hypomethylating Agents
Presenter: Sangmin Lee, Weill Cornell Medical College
Abstract #: 3676
Session Type: Poster Presentation
Session: Myelodysplastic Syndromes — Clinical and Epidemiological: Poster III
Date and Time: Monday, December 13, 2021 at 6:00 – 8:00 p.m. ET

Title: Clinical Outcomes in Patients with Dose Reduction of Selinexor in Combination with Bortezomib, and Dexamethasone (XVd) in Previously Treated Multiple Myeloma from the BOSTON Study
Presenter: Sundar Jagannath, Mount Sinai School of Medicine
Abstract #: 3793
Session Type: Poster Presentation
Session: Multiple Myeloma and Plasma Cell Dyscrasias: Clinical and Epidemiological: Poster III
Date and Time: Monday, December 13, 2021 at 6:00 – 8:00 p.m. ET

Title: Selinexor in Combination with R-GDP for Patients with Relapsed/Refractory B-Cell Lymphoma: SELINDA Phase Ib LYSA Study
Presenter: Marie Maerevoet, Jules Bordet Institute
Abstract #: 1411
Session Type: Poster Presentation
Session: Aggressive Lymphomas: Prospective Therapeutic Trials: Poster I
Date and Time: Saturday, December 11, 2021 at 5:30 – 7:30 p.m. ET

Title: A Phase 2/3, Multicenter Randomized Study of Rituximab-Gemcitabine-Dexamethasone-Platinum (R-GDP) with or without Selinexor in Patients with Relapsed/Refractory Diffuse Large B-Cell Lymphoma (RR DLBCL)
Presenter: Seung Tae Lee, University of Maryland School of Medicine
Abstract #: 1420
Session Type: Poster Presentation
Session: 626. Aggressive Lymphomas: Prospective Therapeutic Trials: Poster I
Date and Time: Saturday, December 11, 2021, 5:30-7:30 p.m. ET

About Selinexor (ATG-010)

Selinexor is so far the first and only oral XPO1 inhibitor approved by the U.S. Food and Drug Administration (FDA) and the first drug approved for the treatment of both multiple myeloma and diffuse large B-cell lymphoma. By blocking the nuclear export protein XPO1, selinexor can promote the intranuclear accumulation and activation of tumor suppressor proteins and growth regulating proteins, and down-regulate the levels of multiple oncogenic proteins, thus induces apoptosis without affecting normal cells. Due to its novel mechanism of action, selinexor can be used in multiple combination regimens to improve treatment efficacy.

About Antengene

Antengene Corporation Limited (“Antengene”, SEHK: 6996.HK) is a leading clinical-stage R&D- driven biopharmaceutical company focused on innovative medicines for oncology and other life-threatening diseases. Antengene aims to provide the most advanced anti-cancer drugs to patients in the Asia Pacific Region and around the world. Since beginning operation in 2017, Antengene has obtained 18 investigational new drug (IND) approvals, submitted 6 new drug applications (NDAs) in multiple Asia Pacific markets, with the NDA for selinexor in South Korea already approved through a priority review process. Leveraging partnerships as well as in-house drug discovery, Antengene has built a broad and expanding pipeline of 13 clinical and pre-clinical assets, comprising 8 global rights assets and 5 assets with rights for Asia Pacific markets including the Greater China region. Driven by its vision of “Treating Patients Beyond Borders”, Antengene is committed to addressing significant unmet medical needs by discovering, developing, manufacturing and commercializing first-in-class/best-in-class therapeutics.

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Company Codes: HongKong:6996