Addition of CN201, a next generation CD3xCD19 bispecific antibody with potential applications in B-cell malignancies and autoimmune diseases, broadens and fortifies Merck’s pipeline

Merck (NYSE: MRK), known as MSD outside of the United States and Canada, today announced the completion of the acquisition of CN201 from Curon Biopharmaceutical (Curon), a novel investigational clinical-stage bispecific antibody for the treatment of B-cell associated diseases.

“By actively depleting B-cells, CN201 offers applications spanning both B-cell malignancies and autoimmune diseases. We look forward to building upon the foundational work started by the Curon team,” said Dr. Dean Y. Li, president, Merck Research Laboratories.

CN201 is currently being investigated in Phase 1 and Phase 1b/2 clinical trials for the treatment of patients with relapsed or refractory non-Hodgkin’s lymphoma (NHL) and relapsed or refractory B-cell acute lymphocytic leukemia (ALL), respectively. Preliminary data suggest CN201 has activity in patients with relapsed or refractory B-cell hematologic malignancies and is well tolerated, potentially leading to significant and sustained reductions in B-cell populations.

Transaction details

Under the agreement, Merck, through a subsidiary, has acquired full global rights to CN201. As previously disclosed, the transaction is being accounted for as an asset acquisition. Merck is recording a pre-tax charge of approximately $750 million (reflecting the upfront payment and other related costs), or approximately $0.28 per share, which will be included in third-quarter non-GAAP results and was not included in Merck’s full-year financial outlook issued on July 30. As a matter of policy, Merck provides updates to its financial outlook once each quarter and will provide an update to its full-year financial outlook when it reports third-quarter 2024 results on October 31.

About CN201

CN201 is a novel CD3xCD19-targeting T-cell-engager bispecific antibody, designed to target B cells for elimination by T cells. CN201 is currently being evaluated in Phase 1 and Phase 1b/2 clinical trials for the treatment of relapsed or refractory non-Hodgkin’s lymphoma and relapsed or refractory acute lymphocytic leukemia, respectively.

About Merck

At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world - and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities. For more information, visit www.merck.com and connect with us on X (formerly Twitter), Facebook, Instagram, YouTube and LinkedIn.

Forward-Looking Statement of Merck & Co., Inc., Rahway, N.J., USA

This news release of Merck & Co., Inc., Rahway, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline candidates that the candidates will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

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The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s Annual Report on Form 10-K for the year ended December 31, 2023 and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

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