Oncology ADC and T-cell engager pipeline

In Development
Earendil Labs
Earendil Labs
Oncology ADC and T-cell engager pipeline

Overview

A preclinical oncology set listed on Earendil's pipeline page: CDH17 dual-payload ADC (HXN-2001), CEACAM5/CDH17 TCE and ADC, GUCY2C TCE, DLL3 TCE and dual-payload ADC, B7-H3 ADC, TROP2/PD-L1 and EGFR/PD-L1 bispecific ADCs, and a PD-1/IL-15 fusion protein. February 2026 WuXiTecan-2 license is meant to supply payload-linkers for a subset of these ADCs.

Preclinical / IND-enabling. Company has said multiple INDs are planned in 2026 and 2027 without naming which oncology assets file first. No oncology program has been reported in the clinic.

Key Specs

Named oncology programs
10 listed (HXN-2001 through HXN-2031 series)
ADC payload-linker
Exclusive WuXiTecan-2 license, up to ~$885M plus royalties (Feb 2026)