Racura Treats First Patient in HARNESS-1 Lung Cancer Trial

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Stock Race Oncology Ltd (RAC.ASX)
Release Time 25 Jun 2026, 8:55 a.m.
Price Sensitive Yes
 Race Oncology Initiates HARNESS-1 Lung Cancer Trial
Key Points
  • First patient treated in HARNESS-1 Phase 1 RC220 trial
  • RC220 assessed with osimertinib for EGFR-mutant NSCLC
  • No adverse events observed in initial dosing
Full Summary

Race Oncology Ltd. has announced the initiation of the HARNESS-1 Phase 1 clinical trial for RC220, a potential treatment for EGFR-mutant non-small cell lung cancer (NSCLC). The trial, which began with the treatment of the first patient, is evaluating RC220 in combination with osimertinib, a standard-of-care tyrosine kinase inhibitor. The first patient was treated at Monash Health, and no adverse events were observed. The trial aims to address the challenge of osimertinib resistance in EGFR-mutant NSCLC patients. The study will progress through dose escalation and expansion stages to identify the maximum tolerated dose and assess safety and clinical activity.