Surface Oncology Retains Worldwide Rights for its First-in-Class Antibody Targeting IL-27, SRF388

  • IL-27 is a key regulator of checkpoint protein expression
  • SRF388 believed to be the only anti-IL-27 targeted agent in late-preclinical development
  • Investigational New Drug (IND) submission for SRF388 expected in Q4 2019

CAMBRIDGE, MA, USA I February 04, 2019 I Surface Oncology (Nasdaq:SURF), a clinical-stage immuno-oncology company developing next-generation immunotherapies that target the tumor microenvironment, today announced the retention of worldwide rights for its novel antibody, SRF388, targeting IL-27. This program was previously subject to Surface’s collaboration with Novartis. IL-27 is a novel target in immuno-oncology, believed to play a significant and broad role in tumor-related immunosuppression via the regulation of checkpoint protein expression.

“SRF388 is an ideal program for Surface Oncology. We have conducted significant preclinical and translational work to understand IL-27’s role in specific tumor types and have a focused translational strategy as we advance this program into clinical development,” said Jeff Goater, chief executive officer of Surface Oncology. “We are pursuing an aggressive development timeline for SRF388, with an IND filing planned for the fourth quarter of this year.”

Based on the terms of the 2016 agreement with Novartis, IL-27 was one of a set of predefined targets for which Novartis had a right to purchase an option, subject to certain financial conditions. Novartis has elected to not purchase an option for SRF388 and as a result full rights remain with Surface Oncology.

Currently, Surface Oncology is conducting IND-enabling studies for both SRF388 and its wholly owned CD39 program, SRF617, and anticipates submission of both INDs in Q4 of 2019. 

SRF388 is a fully human anti-IL-27 antibody. In preclinical studies, treatment with SRF388 was observed to block IL-27 signaling and its downstream immunosuppressive effects. Preclinical combination with a PD-1 inhibitor increased the production of key inflammatory cytokines. SRF388 also demonstrates preclinical anti-metastatic tumor activity.

Surface Oncology is an immuno-oncology company developing next-generation antibody therapies focused on the tumor microenvironment with lead programs targeting CD73, CD39, IL-27 and CD47. Surface’s novel cancer immunotherapies are designed to achieve a clinically meaningful and sustained anti-tumor response and may be used alone or in combination with other therapies. The company has a pipeline of seven novel immunotherapies and a strategic collaboration with Novartis focused on up to two next-generation cancer immunotherapies. For more information, please visit

SOURCE: Surface Oncology

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