Mersana Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on the discovery and development of antibody-drug conjugates (ADCs) for the treatment of cancer. Founded in 2003 and headquartered in Cambridge, Massachusetts, Mersana leverages its proprietary Dolaflexin® and Aquaflexin® ADC platforms to create targeted therapeutics designed to deliver potent cytotoxic agents selectively to tumor cells. The company’s research emphasizes optimizing linker chemistry and payload potency to maximize tumor cell killing while minimizing off-target toxicity.
Mersana’s lead clinical candidate, upifitamab rilsodotin (formerly XMT-1536), is designed to target NaPi2b-expressing cancers, including ovarian and non-small cell lung cancer. Additional preclinical and clinical programs include XMT-1592, which targets the folate receptor alpha, and XMT-1660, which focuses on HER2-expressing tumors with a novel exatecan payload. The company’s Aquaflexin platform further enables the development of highly hydrophilic ADCs that may improve tolerability and expand the scope of potential cancer targets.
In addition to its internal research efforts, Mersana has established strategic collaborations with global biopharmaceutical organizations, including Takeda, Merck, Pfizer and AstraZeneca. These partnerships aim to accelerate the development and commercialization of ADCs across multiple therapeutic areas and geographic markets. Through collaborative agreements, Mersana gains access to complementary expertise and resources while retaining global development and commercialization rights for several of its proprietary candidates.
Under the leadership of President and Chief Executive Officer Geoffrey C. Chase, Mersana continues to advance its product pipeline through clinical trials and regulatory interactions. The company’s board and management team comprise seasoned professionals with extensive experience in oncology drug development, regulatory affairs and commercial strategy. As Mersana progresses toward potential regulatory submissions and commercialization milestones, it remains committed to delivering next-generation ADC therapies to improve outcomes for patients with hard-to-treat cancers.
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