Carisma Therapeutics Presents Promising New Preclinical Data on Engineered Macrophages for the Treatment of Liver Fibrosis at AASLD The Liver Meeting® 2024

In This Article:

New preclinical results support the anti-fibrotic potential of engineered macrophages in multiple fibrosis models

Engineered TIM4-expressing macrophages correct defective efferocytosis in MASH, demonstrating potent anti-fibrotic activity 

PHILADELPHIA, Nov. 17, 2024 /PRNewswire/ -- Carisma Therapeutics Inc. (Nasdaq: CARM) ("Carisma" or the "Company"), a clinical-stage biopharmaceutical company focused on discovering and developing innovative immunotherapies, today presented promising preclinical data on engineered macrophages for treating liver fibrosis at the American Association for the Study of Liver Diseases (AASLD) The Liver Meeting® 2024. These results underscore the pre-clinical efficacy of Carisma's engineered macrophages in multiple liver fibrosis models and offer a novel, off-the-shelf potential treatment option for patients with fibrotic liver disease including advanced metabolic dysfunction-associated steatohepatitis (MASH).

(PRNewsfoto/CARISMA Therapeutics Inc.)
(PRNewsfoto/CARISMA Therapeutics Inc.)

Liver fibrosis is a central late-stage pathway in multiple liver diseases, including MASH, acute liver injury, primary sclerosing cholangitis, primary biliary cholangitis, and others. Treatment options remain limited for advanced liver disease patients. Liver disease is characterized by defective efferocytosis (an anti-inflammatory process by which macrophages clear dead hepatocytes), activation of hepatic stellate cells which leads to collagen accumulation, and chronic inflammation.

New preclinical results demonstrate that macrophages can be genetically engineered to target specific key pathways underlying liver disease with factors including TIM4 (restores efferocytosis), relaxin (inhibits hepatic stellate cell activation), and IL10 (reduces inflammation). Notably, a single dose of macrophages expressing TIM4, alone or together with relaxin, significantly reduced liver fibrosis and hepatic stellate cell activation in the translationally relevant choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD) MASH model. The engineered macrophages were well tolerated and outperformed non-engineered cells in all models.

"We are pleased to present compelling preclinical data supporting the therapeutic potential of our engineered macrophages to address a critical unmet need in liver fibrosis, which is found in advanced stages of MASH," said Michael Klichinsky, PharmD, PhD, Co-founder and Chief Scientific Officer of Carisma. "These data underscore the efficacy of our engineered macrophages as a differentiated, off-the-shelf approach for treating advanced liver fibrosis. Based on these promising findings, we are committed to advancing our liver fibrosis program."

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