Regulatory approval

Published by the Health Canada.

Health Canada approved osimertinib for the treatment of patients with locally advanced, unresectable (stage III) NSCLC whose tumours have EGFR exon 19 deletion or exon 21 (L858R) substitution mutations (either alone or in combination with other EGFR mutations) and whose disease has not progressed during opr following platinum based chemoradiation therapy.

This is written in the approval document as:

TAGRISSO (osimertinib) is indicated for the treatment of patients with locally advanced, unresectable (stage III) NSCLC whose tumours have EGFR exon 19 deletions or exon 21 (L858R) substitution mutations (either alone or in combination with other EGFR mutations) and whose disease has not progressed during or following platinum based chemoradiation therapy.

Citation

AstraZeneca Canada Inc. Tagrisso (osimertinib) [product monograph]. Health Canada website. https://pdf.hres.ca/dpd_pm/00080336.PDF. Revised April 2025. Accessed June 2025.

Therapeutic response

Precision oncology relationships for therapeutic response derived from this regulatory approval.

Type Biomarker(s) Cancer type Therapy(ies)
Sensitivity (+) EGFR Exon 19 (Deletion) Non-Small Cell Lung Cancer Osimertinib
Sensitivity (+) EGFR p.L858R Non-Small Cell Lung Cancer Osimertinib