Genmab entered into a definitive agreement to acquire ProfoundBio, Inc. for $1.8 billion in cash. ProfoundBio is a privately-owned clinical-stage biotechnology company developing next-generation ADCs and ADC technologies for the treatment of certain cancers, including ovarian cancer and other FRα-expressing solid tumors.
The transaction expands Genmab’s mid- to late-stage clinical pipeline and strengthens its validated suite of technology platforms. Genmab also gains worldwide rights to ProfoundBio’s portfolio of next-generation ADCs, which consists of three clinical and multiple preclinical programs including Rina-S, a potential best-in-class, clinical-stage, FRα-targeted, Topo1 ADC, currently in Phase 2 development for the treatment of ovarian cancer and other FRα-expressing solid tumors.
Rina-S aims to address a broader patient population than first-generation FRα-targeted ADCs. In January 2024, the U.S. FDA granted Fast Track designation to Rina-S for the treatment of patients with FRα-expressing high-grade serous or endometrioid platinum-resistant ovarian cancer.
“The proposed acquisition of ProfoundBio firmly aligns with our long-term strategy and our ambitious 2030 vision, to impact the lives of patients through innovative antibody medicines,” said Jan van de Winkel, Ph.D., President and Chief Executive Officer of Genmab. “We believe that ProfoundBio’s ADC candidates, proprietary technology platforms and talented team will be a great addition to Genmab and that, together, we will be able to accelerate the development of innovative, differentiated antibody therapies for cancer patients.”
“Genmab shares our team’s mission of developing novel therapies to improve outcomes for cancer patients. Genmab’s deep expertise in antibody drug development and commercialization makes this a compelling union that will allow us to rapidly develop and realize the full potential of our ADC therapies to benefit patients,” said Baiteng Zhao, Ph.D., ProfoundBio’s co-founder, Chief Executive Officer and Chairman of the Board.

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