Ellipses in-licenses ADC from China

23 January 2026

Privately-held UK drug developer Ellipses Pharma has entered into a collaboration and licence agreement with China-based Innolake Biopharm to develop a clinical stage first-in-class antibody drug conjugate (ADC).

Under the partnership, Ellipses gains rights to develop a B7H3 targeted ADC with an eribulin payload (ILB-3101) worldwide excluding greater China. ILB-3101 has the potential to treat multiple tumor types and to address resistance to topoisomerase-1 based ADCs. ILB-3101 is designated as EP0028 by Ellipses.

Ellipses and Innolake will collaborate closely on the development of ILB-3101/EP0028, which is currently in a Phase I trial in China sponsored by Innolake. Ellipses will initiate a Phase I clinical trial in the USA with expansion to Europe and other territories following relevant regulatory approvals. Financial terms of the collaboration were not disclosed.

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