Harpoon Therapeuticsto Present Interim Results from Phase 1 Clinical Trial of T Cell Engager HPN217 at the 64th ASH Annual Meeting and Exposition

2022-11-04

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SOUTH SAN FRANCISCO, Calif., Nov. 03, 2022 (GLOBE NEWSWIRE) -- Harpoon Therapeutics, Inc. (Nasdaq: HARP), a clinical-stage immunotherapy company developing novel T cell engagers, today announced that it will present updated interim data from its Phase 1 clinical trial evaluating single-agent HPN217 in relapsed/refractory multiple myeloma (RRMM) in a poster presentation at the 64th American Society of Hematology (ASH) Annual Meeting and Exposition being held in person in New Orleans, Louisiana and virtually from December 10-13, 2022. HPN217 targets B-cell maturation antigen (BCMA) and is based on Harpoon’s proprietary Tri-specific T cell Activating Construct (TriTAC®) platform designed to recruit a patient’s own immune cells to kill tumor cells.

“The updated interim results from the Phase 1 trial establish clinical proof of concept of HPN217 in heavily pretreated relapsed/refractory multiple myeloma and provide further clinical validation of our proprietary TriTAC T cell engager platform,” said Julie Eastland, President and Chief Executive Officer of Harpoon Therapeutics. “At ASH 2022, we look forward to presenting updated clinical results from the ongoing HPN217 trial in patients with RRMM, including additional safety, efficacy and pharmacodynamic data from patients enrolled at higher dose levels.”

Details of the ASH poster presentation are as follows:

Abstract Title: Updated Interim Results from a Phase 1 Study of HPN217, a Half-Life Extended Tri-Specific T Cell Activating Construct (TriTAC®) Targeting B Cell Maturation Antigen (BCMA) for Relapsed/Refractory Multiple Myeloma (RRMM)

Publication Number: 3240

Session Number/Title: Session 653 - Myeloma and Plasma Cell Dyscrasias: Prospective Therapeutic Trials: Poster II

Session Date, Time: Sunday, December 11 from 6:00 – 8:00 p.m. CT

Location: Ernest N. Morial Convention Center, Hall D

The poster will also be available on Harpoon’s website following the presentation.

For more details about the ASH Annual Meeting, please visit: https://www-hematology-org.libproxy1.nus.edu.sg/meetings/annual-meeting

In November 2019, Harpoon Therapeutics and AbbVie announced a licensing agreement and option to advance HPN217 and expand an existing discovery collaboration. Under the terms of the agreement, AbbVie may exercise its option to license HPN217 after completion of the Phase 1/2 clinical trial.

About Harpoon Therapeutics

Harpoon Therapeutics is a clinical-stage immunotherapy company developing a novel class of T cell engagers that harness the power of the body’s immune system to treat patients suffering from cancer and other diseases. T cell engagers are engineered proteins that direct a patient’s own T cells to kill target cells that express specific proteins, or antigens, carried by the target cells. Using its proprietary Tri-specific T cell Activating Construct (TriTAC®) platform, Harpoon is developing a pipeline of novel TriTACs initially focused on the treatment of solid tumors and hematologic malignancies. Harpoon has also developed a proprietary ProTriTAC™ platform, which applies a prodrug concept to its TriTAC platform to create a therapeutic T cell engager that remains inactive until it reaches the tumor. Harpoon’s third proprietary technology platform, extended release TriTAC-XR, is designed to mitigate cytokine release syndrome. For additional information about Harpoon Therapeutics, please visit www.harpoontx.com.

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