iTeos Therapeutics Announces New Preliminary Data Indicating Clinical Activity with its Anti-TIGIT Antibody, EOS-448, at the AACR Annual Meeting 2021 - Seite 3

“I am highly encouraged by these initial results from the EOS-448 trial, particularly the clinically meaningful response to treatment in the pembrolizumab-refractory melanoma patient,” said Mario Sznol, M.D., professor of medicine and leader, Melanoma/RCC Disease-Associated Research Team, at Yale University. “The treatment of patients who develop resistance to checkpoint inhibitors is challenging in a number of tumor types, and these data give us hope that EOS-448 could provide benefit in adult solid tumor patients who don’t respond to or who progress on current checkpoint inhibitors.” 

The e-poster and abstract can be accessed on the AACR conference website. The abstract and presentation details are as follows:

Title: Preliminary data from Phase I first-in-human study of EOS884448, a novel potent anti-TIGIT antibody, monotherapy shows favorable tolerability profile and early signs of clinical activity in immune-resistant advanced cancer
Session: Phase I Clinical Trials
Poster #: CT118
Authors: Tom Van den Mooter, et al.

The Company will host a conference call and webcast to provide an overview of the data on Monday, April 12 at 8:00 a.m. EDT. Details are as follows:

Participant Dial-In: [phone]
International Dial-In: [phone]
Conference ID: 2888301
Webcast: https://edge.media-server.com/mmc/p/ke2wtf4w

The abstract was posted online at 12:01 a.m. EDT on Friday, April 9 and the e-poster launched at 8:30 a.m. EDT on Saturday, April 10 on the AACR conference website.

EOS-448 Further Clinical Development Plans
Based on these preliminary results, the Company plans to advance EOS-448 using combination trials in both checkpoint-naïve and resistant patients. These Phase 1b trials will assess the safety of EOS-448 in combination with pembrolizumab and in combination with iTeos novel agent inupadenant in patients with solid tumors, and as a monotherapy and in combination with an Immunomodulatory Drug (IMiD) in patients with multiple myeloma. Subsequent disease-specific Phase 2a trials are planned in patients with non-small cell lung cancer, head and neck cancer, melanoma, and myeloma. The Company is also planning for later-stage trials of EOS-448, including in combination with pembrolizumab.