GT Biopharma to Present New Data on Novel Dual-Antigen Targeting Approach Against AML at Upcoming 2022 ASH Annual Meeting

BRISBANE, CALIFORNIA, Nov. 03, 2022 (GLOBE NEWSWIRE) — GT Biopharma, Inc. (the “Company” or “GTB”) (NASDAQ: GTBP), a clinical stage immuno-oncology company focused on developing innovative therapeutics based on the Company’s proprietary natural killer (NK) cell engager, TriKE^® platform, today announced the presentation of new data at the American Society of Hematology’s 64th Annual Meeting (ASH 2022) taking place in New Orleans, LA, and virtually December 10-13, 2022. The presentation highlights a novel dual antigen targeting approach for the treatment of acute myeloid leukemia (AML) by combining its TriKE platform and the induced pluripotent stem cell (iPSC) product platform of Fate Therapeutics, Inc.

The study utilized a combination of GT Biopharma’s investigational GTB-3650, a CD33 targeting Tri-specific Killer Engager (TriKE), and Fate Therapeutics’ multiplexed-engineered, iPSC-derived, CAR NK cells targeting the α3 domain of MICA and MICB. Preclinical data to be presented demonstrate that iPSC-derived, MICA/B-targeted CAR NK cells induced potent activity against the AML cell line HL60, and that further enhancement of activity was achieved in combination with GTB-3650 through antibody-dependent cellular cytotoxicity.

Poster Presentation

Title: A Novel Dual-Antigen Targeting Approach Enables Off-the-Shelf CAR NK Cells to Effectively Recognize and Eliminate the Heterogenous Population Associated with AML
Abstract Number: 4623
Category: Cellular Immunotherapies: Basic and Translational
Presenter: Zachary David, PhD
Date: December 12, 2022
Location and time: Ernest N. Morial Convention Center, Hall D, New Orleans, LA from 6:00pm – 8:00pm ET

About ASH

The American Society of Hematology (ASH) (www.hematology.org) is the world’s largest professional society of hematologists dedicated to furthering the understanding, diagnosis, treatment, and prevention of disorders affecting the blood. For more than 60 years, the Society has led the development of hematology as a discipline by promoting research, patient care, education, training, and advocacy in hematology. ASH’s flagship journal, Blood (www.bloodjournal.org), is the most cited peer-reviewed publication in the field, and Blood Advances (www.bloodadvances.org) is the Society’s online, peer-reviewed open-access journal.

About GT Biopharma, Inc.

GT Biopharma, Inc. is a clinical stage biopharmaceutical company focused on the development and commercialization of immuno-oncology therapeutic products based on our proprietary TriKE^® NK cell engager platform. Our TriKE^® platform is designed to harness and enhance the cancer killing abilities of a patient’s immune system’s natural killer cells. GT Biopharma has an exclusive worldwide license agreement with the University of Minnesota to further develop and commercialize therapies using TriKE^® technology. For more information, please visit gtbiopharma.com.

Forward-Looking Statements

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TriKE^® is a registered trademark owned by GT Biopharma, Inc.

Investor Relations Contacts:

LifeSci Advisors
Corey Davis, Ph.D.
cdavis@lifesciadvisors.com
212-915-2577