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European Commission Designates UpRi as an Orphan Medicinal Product for the Treatment of Ovarian Cancer

Thursday, December 15, 2022

Mersana Therapeutics, Inc., a clinical-stage biopharmaceutical company focused on discovering and developing a pipeline of antibody-drug conjugates (ADCs) targeting cancers in areas of high unmet medical need, today announced that the European Commission (EC) has designated upifitamab rilsodotin (UpRi) as an orphan medicinal product for the treatment of ovarian cancer. UpRi is Mersana’s first-in-class NaPi2b-targeting ADC with a novel scaffold-linker-payload that is designed to enable a high drug-to-antibody ratio and controlled bystander effect.

“Receiving this orphan designation in the European Union is an important regulatory milestone for Mersana as we seek to expedite UpRi’s global development,” said Anna Protopapas, President and Chief Executive Officer of Mersana Therapeutics. “This designation reinforces the unmet needs that patients with ovarian cancer continue to face today. We look forward to advancing our ongoing clinical trials, which aim to establish UpRi as a foundational medicine in ovarian cancer.”

The European Commission designates drugs as orphan medicinal products based on positive opinions adopted by the European Medicines Agency (EMA) Committee for Orphan Medicinal Products (COMP). Orphan designations are granted for potential treatments for rare diseases that are life-threatening or chronically debilitating that affect fewer than five in 10,000 people across the European Union. Medicines designated as orphan medicinal products by the EMA may qualify for financial and regulatory incentives, including protocol assistance at reduced fees during product development, access to centralized marketing authorization and 10 years of marketing exclusivity in the European Union after product approval.

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