On March 18, 2026 Phanes Therapeutics, Inc. (Phanes), a clinical stage biotech company focused on innovative drug discovery and development in oncology, reported that they will present three posters from their ongoing Phase 2 clinical trial with spevatamig (PT886), a first-in-class bispecific antibody targeting CLDN18.2 and CD47, at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) held on April 17-22 in San Diego, CA. All three posters will be presented under the Phase II and Phase III Clinical Trials Session. Details of each presentation are below:
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Title: Pharmacokinetics of spevatamig (PT886), a bispecific antibody targeting CLDN18.2 and CD47, in patients with advanced gastrointestinal cancers as monotherapy or combination therapy
Date/Time: 4/20/2026 | 2:00-5:00 PM PST
Location: Poster Section 52
Poster Board Number: 8
Abstract Presentation Number: CT144
First Author: Anwaar Saeed, MD, University of Pittsburgh Medical Center
Title: Reducing nausea and vomiting while maintaining the full potential for efficacy with spevatamig, a CLDN18.2xCD47 bispecific antibody
Date/Time: 4/20/2026 | 2:00-5:00 PM PST
Location: Poster Section 52
Poster Board Number: 6
Abstract Presentation Number: CT142
First Author: Michael Overman, MD, University of Texas MD Anderson Cancer Center
Title: Resolved hematological toxicities associated with anti-CD47 agents using a bispecific design involving an optimized anti-CD47 arm: A clinical proof of concept study
Date/Time: 4/20/2026 | 2:00-5:00 PM PST
Location: Poster Section 52
Poster Board Number: 7
Abstract Presentation Number: CT143
First Author: Harshabad Singh, MD, Mass General Brigham
ABOUT SPEVATAMIG
Spevatamig is a first-in-class native IgG-like bispecific antibody (bsAb) targeting claudin 18.2 and CD47. It was granted orphan drug designation (ODD) for the treatment of pancreatic cancer by the FDA in 2022 and was granted Fast Track designation for the treatment of patients with metastatic claudin 18.2-positive pancreatic adenocarcinoma in 2024. In 2023, Phanes entered into a clinical collaboration agreement with Merck (known as MSD outside the US and Canada) to study spevatamig in combination with Merck’s anti-PD-1 therapy, pembrolizumab.
The US multi-center Phase 1/2 clinical trial of spevatamig (NCT05482893) is evaluating the safety, tolerability, pharmacokinetics, and preliminary efficacy of spevatamig in patients with advanced gastric, gastroesophageal junction, pancreatic ductal or biliary tract adenocarcinomas. The Phase 2 study of spevatamig has begun in China (CTR20241655).
(Press release, Phanes Therapeutics, MAR 18, 2026, View Source [SID1234663711])