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Zipalertinib Plus Chemotherapy Demonstrates 6-Month Median Progression-Free Survival Benefit in REZILIENT3 Phase 3 Trial in First-Line EGFR Exon 20 Insertion Mutation Non-Small Cell Lung Cancer

Key Takeaway: Taiho Oncology, Taiho Pharmaceutical, and Cullinan Therapeutics announced positive results from the Phase 3 REZILIENT3 trial. The trial evaluated zipalertinib combined with chemotherapy against chemotherapy alone for patients with EGFR exon 20 insertion mutation-positive non-small cell lung cancer. The findings indicate a significant median progression-free survival benefit for the combination treatment.

Market Sentiment Analysis

POSITIVE FACTORS

  • Zipalertinib shows promising results in combination with chemotherapy.
  • The trial demonstrated a median progression-free survival benefit.
  • This treatment targets a specific mutation in non-small cell lung cancer.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+93%
120-day peak, hindsight
Typical move
6.7%
average across 8 past catalysts
Cash runway
~25 mo
Minimal dilution risk
Lead asset
CLN-619
Phase 1 · Multiple Myeloma

Full Press Release Details

PRINCETON, N.J. & TOKYO & CAMBRIDGE, Mass.--(BUSINESS WIRE)--Taiho Oncology, Inc., Taiho Pharmaceutical Co., Ltd., and Cullinan Therapeutics, Inc. (Nasdaq: CGEM) today announced results from the Phase 3 REZILIENT3 trial evaluating zipalertinib plus chemotherapy versus chemotherapy alone in the first-line treatment of patients with epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutation-positive non-small cell lung cancer (NSCLC). The data were presented at the International

Frequently Asked Questions

What is the REZILIENT3 trial?

The REZILIENT3 trial is a Phase 3 study evaluating zipalertinib plus chemotherapy for NSCLC.

What mutation does zipalertinib target?

Zipalertinib targets the EGFR exon 20 insertion mutation in lung cancer.

What were the results of the trial?

The trial demonstrated a significant median progression-free survival benefit.

Who conducted the REZILIENT3 trial?

The trial was conducted by Taiho Oncology, Taiho Pharmaceutical, and Cullinan Therapeutics.

Last updated: Sep 13, 2026