HOWL WEREWOLF THERAPEUTICS INC

Werewolf Therapeutics to Present Posters at the Society for Immunotherapy of Cancer’s (SITC) 40th Annual Meeting

Werewolf Therapeutics to Present Posters at the Society for Immunotherapy of Cancer’s (SITC) 40th Annual Meeting

WATERTOWN, Mass., Oct. 03, 2025 (GLOBE NEWSWIRE) -- Werewolf Therapeutics, Inc. (the “Company” or “Werewolf”) (Nasdaq: HOWL), an innovative biopharmaceutical company pioneering the development of conditionally activated therapeutics engineered to stimulate the body’s immune system for the treatment of cancer and other immune-mediated conditions, today announced that three posters will be presented at the upcoming Society for Immunotherapy of Cancer’s (SITC) 40th Annual Meeting, taking place November 5-9, 2025, in National Harbor, Maryland.



Details for the poster presentations are as follows:

Title: Sequential administration of WTX-124 and mWTX-330, IL-2 and IL-12 INDUKINE™ molecules, enhanced antitumor activity in mice bearing poorly immunogenic EMT6 tumors without systemic toxicity

Abstract Number: 861

Session Date and Time: Nov. 7, 2025; 12:15-1:45, 5:10-6:35 p.m.

Location: Poster Hall (Exhibit Halls A and B1)



Title: Development of conditional T cell engagers (INDUCER™ molecules) with a highly effective masking approach to reduce dose-limiting cytokine release and off-target peripheral toxicity

Abstract Number: 964

Session Date and Time: Nov. 8, 2025; 12:15-1:45, 5:10-6:35 p.m.

Location: Poster Hall (Exhibit Halls A and B1)

Title: Pharmacokinetic insight into the IL-2 INDUKINE prodrug WTX-124: real-time assessment of tumor-specific activation and immune modulation

Abstract Number: 862

Session Date and Time: Nov. 8, 2025; 12:15-1:45, 5:10- 6:35 p.m.

Location: Poster Hall (Exhibit Halls A and B1)

About Werewolf Therapeutics

Werewolf Therapeutics, Inc., is an innovative biopharmaceutical company pioneering the development of therapeutics engineered to stimulate the body’s immune system for the treatment of cancer and other immune-mediated conditions. The Company is leveraging its proprietary PREDATOR® platform to design conditionally activated INDUKINE™ and INDUCER™ molecules that stimulate both adaptive and innate immunity with the goal of addressing the limitations of conventional proinflammatory immune therapies. Werewolf’s INDUKINE molecules are intended to remain inactive in peripheral tissue yet activate selectively in the tumor microenvironment. The Company’s most advanced clinical stage product candidates, WTX-124 and WTX-330, are systemically delivered, conditionally activated Interleukin-2 (IL-2) and Interleukin-12 (IL-12) INDUKINE molecules, respectively, for the treatment of solid tumors. Werewolf is advancing WTX-124 in multiple tumor types as a single agent and in combination with an immune checkpoint inhibitor and WTX-330 in multiple solid tumor types as a single agent. Werewolf is leveraging positive data from its INDUKINE molecules to advance the development of INDUCER molecules. Werewolf’s first INDUCER development candidate, WTX-1011, targets STEAP1 for prostate cancer. To learn more visit .

WEREWOLF®, the WEREWOLF logo, PREDATOR®, INDUKINE™, INDUCER™, and other Werewolf trademarks, service marks, graphics and logos are trade names, trademarks or registered trademarks of Werewolf Therapeutics, Inc., in the United States or other countries. All rights reserved.

Investor Contact:

Dan Ferry

LifeSci Advisors

617.430.7576

Media Contact:

Amanda Sellers

Deerfield Group

301.332.5574

Company Contact:

Timothy Trost

Chief Financial Officer

Werewolf Therapeutics



EN
03/10/2025

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Werewolf Therapeutics Reports Third Quarter 2025 Financial Results and Provides Business Update – Update on WTX-124 Phase 1/1b clinical trial interim data and End of Phase 1 meeting with the U.S. Food & Drug Administration (FDA) is expected to be provided later in the fourth quarter of 2025 – – Update on Phase 1b/2 clinical trial of WTX-330 and potential further development plan is expected to be provided later in the fourth quarter of 2025 – – WTX-1011, Company’s first INDUCER™ T-cell engager development candidate targeting STEAP1, continues IND-enabling studies – WATERTOWN, Mass., N...

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