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Zipalertinib (CLN-081)

EGFR exon 20 insertion-mutated non-small-cell lung cancer

Also known as TAS6417
Manufacturer
Taiho Oncology
Regulatory submission
NDA submitted February 2026
Launch
Not announced
Last updated
75 sources

Clinical evidence

REZILIENT2

13 evidence topics · 5 sources

Objective
Location and study date
Study design
Eligibility criteria
Treatment
Study outcomes
Rationale for using RECIST v1.1 objective response rate as the primary endpoint
Statistical analysis description
Number of participants (Planned and analyzed)
Cohort C enrollment
PopulationParticipants
Total enrolled“32”
Description of analysis sets
Cohort C response-evaluable populations
PopulationParticipants
RANO-BM evaluable“16”
RECIST v1.1 evaluable“29”
Results
Participant disposition

No evidence found.

Baseline characteristics
Cohort C biomarker population
CharacteristicParticipants, n (%)
EGFR exon 20 insertion mutations among all 32 participants“21 (66)”
Efficacy results
Additional cohort C response results
EndpointValue
Confirmed systemic responses, n/N (%)“8/29 (27.6%)”
Median intracranial DOR, months“8.1”
Health-related quality of life and patient-reported outcomes

No evidence found.

Safety results
Study limitations
Summary

The cohort enrolled 32 participants, of whom 21 (66%) had EGFR exon 20 insertions. Systemic response was reported in 8 of 29 evaluable participants and intracranial response in 5 of 16. These are different analysis populations, and the pooled results are not restricted to exon 20 insertions. The ongoing phase 2b cohort does not provide a randomized treatment comparison.