CLEAVE THERAPEUTICS LICENSES FIRST-IN-CLASS VCP/P97 INHIBITOR
CB-5339 TO CASI PHARMACEUTICALS FOR GREATER CHINA REGION

On March 8, 2021 Cleave Therapeutics, Inc. ("Cleave"), a clinical-stage biopharmaceutical company focused on valosin-containing protein (VCP)/p97 as a novel target in protein homeostasis, DNA damage response and other cellular stress pathways for therapeutic use in cancer, and CASI Pharmaceuticals, Inc (NASDAQ: CASI), a U.S. biopharmaceutical company with an established clinical development and commercial infrastructure in China, reported they have entered an exclusive licensing agreement for the development and commercialization of CB-5339, a novel VCP/p97 inhibitor, in mainland China, Taiwan, Hong Kong and Macau (Press release, CASI Pharmaceuticals, MAR 8, 2021, View Source [SID1234576205]).

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Under the terms of the agreement, Cleave and CASI will develop CB-5339 in both hematological malignancies and solid tumors, with CASI responsible for development and commercialization in China and associated markets. Cleave will receive a $5.5 million upfront payment and is eligible to receive up to $74 million in development and commercial milestone payments plus tiered royalties in the high-single to mid-double-digit range on net sales of CB-5339. In addition to the upfront cash payment, CASI will make a $5.5 million investment in Cleave through a convertible note.

CB-5339, an oral second-generation, small molecule VCP/p97 inhibitor, is being evaluated in a Phase 1 clinical trial in patients with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS), while the National Cancer Institute (NCI) is sponsoring and evaluating CB-5339 in a Phase 1 clinical trial of patients with solid tumors and lymphomas.

"Our collaboration with CASI is a strategic step to accelerate the development of CB-5339 globally by initiating trials for additional indications such as multiple myeloma in Greater China," said Amy Burroughs, President and CEO of Cleave Therapeutics. "CASI’s development and commercial capabilities in hematology oncology and long-term commitment as an investor make them an ideal partner at this exciting time in the development of our first-in-class drug candidate."

Wei-Wu He, Ph.D., CASI’s Chairman and Chief Executive Officer, said: "Cleave’s novel approach to inhibiting VCP/p97 in hematological malignancies such as AML and MDS is supported by extensive preclinical research and early clinical data. CB-5339 represents a promising new agent for selectively targeting VCP/p97 in cancers and is a complementary addition to our growing portfolio of approved and investigational therapies for hematology oncology. We are thrilled to partner with Cleave as CB-5339 advances through clinical development."