The zeal for antibody-drug conjugates (ADCs), a prominent focus for dealmaking in 2023, shows no signs of waning, as Johnson & Johnson greeted attendees of the J.P. Morgan Healthcare Conference (JPM) with news of its $2 billion buyout of Ambrx Biopharma Inc., picking up rights to an ADC platform along with a promising candidate targeting advanced prostate cancer. Under the terms, J&J agreed to acquire all outstanding shares of San Diego-based Ambrx for $28 apiece, marketing a 105% premium to the firm’s Jan. 5 closing price. Unsurprisingly, Ambrx’s stock (NASDAQ:AMAM) gained 101.5% to close Jan. 8 at $27.47.
Zymeworks Inc. has announced that its current R&D priority is to progress its differentiated portfolio of antibody-drug conjugates (ADCs) into clinical studies this year and next.
Three months out from its first $1 billion deal with Biontech SE for an antibody-drug conjugate (ADC), Suzhou, China-based Medilink Therapeutics Co. Ltd. clinched another potential $1 billion ADC deal, but this time with Roche Holding AG.
Medilink Therapeutics (Suzhou) Co. Ltd. has entered into a worldwide collaboration and license agreement with F. Hoffmann-La Roche Ltd. for the development of YL-211, a next-generation antibody-drug conjugate candidate targeting proto-oncogene c-Met for solid tumors.
Obi Pharma Inc. has received FDA clearance for its IND application to conduct a phase I/II study of OBI-992, a novel antibody-drug conjugate (ADC) cancer therapy targeting TROP2. The trial will open shortly and aims to enroll patients with advanced solid tumors, including non-small-cell lung cancer, small-cell lung cancer and gastric cancer, although several other cancers are also potential targets.
The spate of recent deals involving antibody-drug conjugates (ADC) continues in a field composed of record-breaking agreements in 2023. The newest of the deals were focused on Asia. GSK plc entered a license deal for the exclusive rights for clinical development and commercialization of Hansoh Pharmaceutical Co. Ltd.’s B7-H3-targeted ADC, HS-20093. Also, South Korea’s Dong-A ST Co. Ltd. is expanding into the ADC space by acquiring Abtis Co. Ltd. and its Abclick platform for ADC drug development.
Legochem Biosciences Inc. signed a $1.7 billion licensing deal with Janssen Biotech Inc. for its Trop2-directed antibody-drug conjugate (ADC), closing the biggest technology transfer deal in Korean biotech history after Chong Kun Dang Pharmaceuticals Corp.
South Korean biotech Pinotbio Co. Ltd. inked a $250 million (₩320 billion) licensing deal with Princeton, N.J.-based Conjugatebio Inc. to develop 10 antibody-drug conjugate (ADC) targets with Pinotbio’s ADC platform technology. The deal announced on Dec. 21 adds to a previous agreement between the two companies last year. Pinotbio and Conjugate first teamed up to discover and develop five ADC targets in June 2022.
Pharma-biotech pairings continued apace in the antibody-drug conjugate (ADC) space, with 2023 capped by Legochem Biosciences Inc. signing a $1.7 billion licensure deal with Johnson & Johnson arm Janssen Biotech Inc. for the former’s Trop2-directed compound, the second-biggest Korean technology transfer agreement.
Researchers from Mbrace Therapeutics Inc. presented the discovery and preclinical evaluation of MBRC-101, a novel antibody-drug conjugate (ADC) targeting the membrane-associated tyrosine kinase receptor EphA5, being developed for the treatment of cancer.
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