Cited by 247Lung Cancer Treatments and MutationsBrain Metastases and TreatmentLung Cancer Diagnosis and Treatment

CNS response to osimertinib in patients with T790M-positive advanced NSCLC: pooled data from two phase II trials

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Goss, G., Tsai, C.-M., Shepherd, F.A., Ahn, M.-J., Bazhenova, L., Crinò, L., de Marinis, F., Felip, E. +7 more·2018·Annals of Oncology

Abstract

Background: Central nervous system (CNS) metastases are common in patients with non-small-cell lung cancer (NSCLC). Osimertinib has shown systemic efficacy in patients with CNS metastases, and early clinical evidence shows efficacy in the CNS. To evaluate osimertinib activity further, we present a pre-specified subgroup analysis of CNS response using pooled data from two phase II studies: AURA extension (NCT01802632) and AURA2 (NCT02094261). Patients and methods: Patients with T790M-positive advanced NSCLC, who had progressed following prior epidermal growth factor receptor-tyrosine kinase inhibitor treatment, received osimertinib 80 mg od (n = 411). Patients with stable, asymptomatic CNS metastases were eligible for enrolment; prior CNS treatment was allowed. Patients with ≥1 measurable CNS lesion (per RECIST 1.1) on baseline brain scan by blinded independent central neuroradiology review (BICR) were included in the evaluable for CNS response set (cEFR). The primary outcome for this CNS analysis was CNS objective response rate (ORR) by BICR; secondary outcomes included CNS duration of response, disease control rate (DCR) and progression-free survival (PFS). Results: Of 128 patients with CNS metastases on baseline brain scans, 50 were included in the cEFR. Confirmed CNS ORR and DCR were 54% [27/50; 95% confidence interval (CI) 39-68] and 92% (46/50; 95% CI 81-98), respectively. CNS response was observed regardless of prior radiotherapy to the brain. Median CNS duration of response (22% maturity) was not reached (range, 1-15 months); at 9 months, 75% (95% CI 53-88) of patients were estimated to remain in response. Median follow-up for CNS PFS was 11 months; median CNS PFS was not reached (95% CI, 7, not calculable). The safety profile observed in the cEFR was consistent with the overall patient population. Conclusions: Osimertinib demonstrated clinically meaningful efficacy against CNS metastases, with a high DCR, encouraging ORR, and safety profile consistent with that reported previously. ClinicalTrials.gov number: NCT01802632; NCT02094261.

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Crossref · 10.1093/annonc/mdx820

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Authors
Goss, G., Tsai, C.-M., Shepherd, F. A., Ahn, M.-J., Bazhenova, L., Crinò, L., de Marinis, F., Felip, E., Morabito, A., Hodge, R., Cantarini, M., Johnson, M., Mitsudomi, T., Jänne, P. A., & Yang, J. C.-H.
Affiliations
  • University of Ottawa (CA)
  • Taipei Veterans General Hospital (TW)
  • University Health Network (CA)
  • Samsung Medical Center (KR)
  • Moores Cancer Center (US)
  • Azienda Ospedaliera di Perugia (IT)
  • Vall d'Hebron Institute of Oncology (ES)
  • Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale" (IT)
  • AstraZeneca (United Kingdom) (GB)
  • Kindai University (JP)
  • National Taiwan University Hospital (TW)
Corresponding author
Goss, G.
Venue
Annals of Oncology
Publisher
Elsevier BV
Published
2018-03
Volume
29
Issue
3
Pages
687-693
ISSN
0923-7534 (ISSN-L)
OpenAlex
W2776194348
Cited by
247
References
27
Citations by year
2026: 5 · 2025: 12 · 2024: 17 · 2023: 32 · 2022: 25 · 2021: 35 · 2020: 30 · 2019: 40 · 2018: 45 · 2017: 6
FWCI
27.37
Type
journal article
Language
en
Open access
Locations
  • Annals of Oncology (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Brain Metastases and Treatment
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
osimertinib, central nervous system metastasis, disease control rate, progression-free survival, EGFR tyrosine kinase inhibitors, brain metastases, EGFR mutation, targeted therapy, safety profile, subgroup analysis
MeSH terms
Progression-Free Survival, Acrylamides, Adult, Aged, Aniline Compounds, Antineoplastic Agents, Brain Neoplasms, Carcinoma, Non-Small-Cell Lung, Female, Humans, Indoles, Lung Neoplasms, Male, Middle Aged, Piperazines, Pyrimidines, Central Nervous System Neoplasms, ErbB Receptors

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