# The Biomarker Paradox at the Heart of Qilu's CLDN6 ADC

- slug: the-biomarker-paradox-at-the-heart-of-qilus-cldn6-adc
- date: 2026-04-23
- category: Biotech & Life Sciences

A drug designed to hit a biomarker works in patients who lack that biomarker. Qilu's investigators have an explanation. It may not hold.

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