Sesen Bio and Carisma Therapeutics Announce Merger Agreement

Sesen Bio, Inc., a Cambridge-based biotech company focused on bladder cancer treatment, and PCIV startup Carisma Therapeutics Inc., a clinical stage biopharmaceutical company focused on discovering and developing innovative immunotherapies, announced today that they have entered into a definitive merger agreement to combine the companies in an all-stock transaction.

The combined company, which is expected to operate under the name Carisma Therapeutics Inc., will focus on advancing Carisma’s proprietary cell therapy platform that utilizes engineered macrophages and monocytes to potentially transform the treatment of cancer and other serious disorders. Carisma is pioneering the development of chimeric antigen receptor macrophage (CAR-M) therapies and is believed to be the only company developing CAR-M therapies with demonstrated proof of mechanism and safety data in clinical trials.

“The proposed merger represents an exciting opportunity for shareholders of each company, and we believe it gets us one step closer to our goal of revolutionizing the field of immunotherapy,” said Carisma’s CEO and President Steve Kelly. “This transaction will provide us with financial strength to not only continue to develop our lead candidate CT-0508, but also allow us to accelerate the growth of our platform and pipeline within and outside of oncology and develop additional strong strategic partnerships beyond those we already have with Moderna and Novartis. Carisma is focused on delivering cutting-edge technology for patients in a way that has never been done before, and we look forward to advancing this important mission.”

To read more about the merger, read the Business Wire article here and the Philadelphia Business Journal article here.

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