Ona Therapeutics

Shanghai – September 19, 2026 -- WuXi XDC Cayman Inc. (2268.HK) has out-licensed its proprietary WuXiTecan-2 payload-linker technology platform to Ona Therapeutics under an exclusive global agreement targeting a single antibody-drug conjugate (ADC) candidate.

Deal structure includes upfront payment, milestones and tiered royalties

The agreement grants Ona Therapeutics exclusive global rights to develop an ADC candidate using WuXi XDC's WuXiTecan-2 platform. The total potential deal value comprises an upfront payment plus development, regulatory and sales milestone payments, with WuXi XDC also eligible for tiered royalties on net sales once the resulting product reaches commercialization. WuXi XDC will additionally provide chemistry, manufacturing and controls (CMC) development and manufacturing support through its integrated ADC CRDMO platform.