—European Patent Office Grants New Patent Covering Use of CM-101 for the Treatment of Multiple Liver Diseases including Primary Sclerosing Cholangitis—

—Further Extends Protections Afforded by CM-101 Composition of Matter and Methods and Use Patents That Have Issued in the U.S., Europe, Israel and Related Territories—

TEL AVIV, Israel, March  25, 2024  (GLOBE NEWSWIRE) -- Chemomab Therapeutics Ltd. (Nasdaq: CMMB), (Chemomab), a clinical stage biotechnology company developing innovative therapeutics to treat rare fibro-inflammatory diseases with high unmet need, today reported that the European Patent Office has granted a new patent for CM-101, Chemomab's first-in-class monoclonal antibody that neutralizes CCL24, a novel disease target that has been shown to play a critical role in the processes that drive fibrosis and inflammation. CM-101 is currently being assessed in the global Phase 2 SPRING trial for the treatment of primary sclerosing cholangitis (PSC). Patient enrollment in the trial has been completed, with a topline data readout expected midyear 2024.

The new European patent covers the use of CM-101 and sequence-related anti-CCL24 antibodies for the treatment of hepatic (liver) diseases, including PSC.

PSC is a potentially lethal condition that lacks any FDA-approved therapies and frequently requires liver transplantation. Unlike other drugs in development for PSC, CM-101 has a unique dual mechanism of action that simultaneously blocks fibrosis and inflammation. In clinical and preclinical studies, this distinctive approach has been shown to inhibit fibrogenesis and interfere with core PSC pathways.

"This new patent covering the use of CM-101 in liver diseases provides additional intellectual property protection in key European markets in addition to the CM-101 composition of matter patent that has already been granted in Europe. It further supplements the extensive protections afforded by the multiple patents issued and allowed in the U.S., Israel, China and other major territories," said Adi Mor, PhD, co-founder, Chief Executive Officer and Chief Scientific Officer of Chemomab. "This is an important time for Chemomab as we prepare for the midyear release of topline data from our Phase 2 PSC trial, which could provide the first substantial clinical proof-of-concept of CM-101's therapeutic activity and represents a potential major catalyst for the company."

European Patent Application No. 18717135.0 "Anti CCL24 (eotaxin2) Antibodies for Use in the Treatment of Hepatic Diseases" has a grant date of March 20, 2024.

In combination with the five families of CM-101 composition of matter and use patents that are either issued or pending in major territories worldwide, these new patents are expected to provide protection of CM-101 across a number of indications until 2038, with the possibility of up to five years extension upon market approval. CM-101 has been granted Orphan Drug designation in the U.S. and the E.U. and the FDA has awarded CM-101 Fast Track designation for the treatment of PSC in adults.

About CM-101
CM-101 is a monoclonal antibody that neutralizes CCL24, a soluble protein that helps drive the inflammatory and fibrotic pathways central to many fibro-inflammatory diseases. CCL24's role as a therapeutic target has been validated in extensive clinical and nonclinical studies and proof-of-concept for CM-101 has been demonstrated in multiple animal and patient sample studies. CM-101 was safe and well tolerated in four Phase 1 and Phase 2 clinical trials. Data from a completed Phase 2a liver fibrosis trial in nonalcoholic steatohepatitis (NASH) patients showed consistent, positive improvements in key inflammatory and fibrogenesis-related biomarkers, including several that may serve as a potential bridge to activity in PSC. Patient enrollment has been completed in an ongoing CM-101 Phase 2 PSC trial and a readout of topline data is expected midyear 2024.