Cited by 438Lung Cancer Treatments and MutationsLung Cancer Diagnosis and TreatmentHER2/EGFR in Cancer Research

TATTON: a multi-arm, phase Ib trial of osimertinib combined with selumetinib, savolitinib, or durvalumab in EGFR-mutant lung cancer

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Oxnard, G.R., Yang, J.C.-H., Yu, H., Kim, S.-W., Saka, H., Horn, L., Goto, K., Ohe, Y. +7 more·2020·Annals of Oncology

Abstract

Background Osimertinib is a potent, third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI). The multi-arm phase Ib TATTON study (NCT02143466) was designed to assess the safety and tolerability of osimertinib in combination with other targeted therapies: selumetinib (MEK1/2 inhibitor), savolitinib (MET-TKI), or durvalumab [anti-programmed cell death ligand 1 (anti-PD-L1) monoclonal antibody].Patients and methods Patients with advanced EGFR-mutant non-small-cell lung cancer and disease progression on a prior EGFR-TKI were enrolled and allocated to dose-escalating cohorts combining osimertinib 80 mg orally (p.o.) once a day with selumetinib (25-75 mg p.o. twice a day; continuous or intermittent), savolitinib (600-800 mg p.o. once a day), or durvalumab (3-10 mg/kg intravenous every 2 weeks).Results At data cut-off (28 February 2018), 77 patients were enrolled and received osimertinib plus selumetinib (n = 36), savolitinib (n = 18), or durvalumab (n = 23). Most common adverse events (any grade), occurring in ≥20% of patients across dose groups, were: selumetinib arm-diarrhea (75%), rash (58%), nausea (47%); savolitinib arm-nausea (67%), rash (56%), vomiting (50%); durvalumab arm-rash (48%), vomiting (43%), diarrhea (39%). Dose-limiting toxicities were reported in the selumetinib 25 mg (n = 1), 50 mg (n = 1), and 75 mg (n = 4) continuous-dose groups, savolitinib 600 mg (n = 1) and 800 mg dose groups (n = 2), and durvalumab 10 mg/kg (n = 1) dose group. The objective response rate was 42% (95% confidence interval 26% to 59%), 44% (22% to 69%), and 43% (23% to 66%) in the selumetinib, savolitinib, and durvalumab arms, respectively.Conclusion Our results demonstrate the feasibility of combining osimertinib 80 mg with selumetinib or savolitinib at identified tolerable, active doses. A combination of osimertinib with durvalumab was not feasible due to increased reporting of interstitial lung disease. Osimertinib-based combination therapies represent a compelling approach now being further investigated.Clinical trials number NCT02143466.

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  • In the phase 1 study TATTON, the incidence rate of interstitial lung disease in the osimertinib plus durvalumab arm was 22%, leading to termination of patient enrollment.

    “Additionally, in the phase 1 study TATTON, the incidence rate of interstitial lung disease in the osimertinib (a third-generation EGFR-TKI) plus durvalumab arm was unexpectedly high (22%), leading to the termination of patient enrollment [192].”

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  1. Mok TS, Wu Y-L, Ahn M-J, et al. Osimertinib or platinumepemetrexed in EGFR T790Mepositive lung cancer. N Engl J Med. 2017;376:629e640.

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Authors
Oxnard, G. R., Yang, J. C.-H., Yu, H., Kim, S.-W., Saka, H., Horn, L., Goto, K., Ohe, Y., Mann, H., Thress, K. S., Frigault, M. M., Vishwanathan, K., Ghiorghiu, D., Ramalingam, S. S., & Ahn, M.-J.
Affiliations
  • Dana-Farber Cancer Institute (US)
  • National Taiwan University (TW)
  • Memorial Sloan Kettering Cancer Center (US)
  • Asan Medical Center (KR)
  • Nagoya Medical Center (JP)
  • Vanderbilt University (US)
  • National Cancer Centre Japan (JP)
  • National Cancer Center Hospital (JP)
  • AstraZeneca (United Kingdom) (GB)
  • AstraZeneca (United States) (US)
  • Emory University (US)
  • Samsung Medical Center (KR)
Corresponding author
Oxnard, G.R.
Venue
Annals of Oncology
Publisher
Elsevier BV
Published
2020-04
Volume
31
Issue
4
Pages
507-516
ISSN
0923-7534 (ISSN-L)
OpenAlex
W3001408868
Cited by
438
References
38
Citations by year
2026: 33 · 2025: 53 · 2024: 62 · 2023: 63 · 2022: 101 · 2021: 91 · 2020: 33 · 2019: 1 · 2015: 1
FWCI
40.53
Type
journal article
Language
en
Open access
Locations
  • Annals of Oncology (publishedVersion)
  • PubMed (publishedVersion)
Funders
AstraZeneca
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
Keywords
osimertinib, EGFR-mutant non-small cell lung cancer, selumetinib, savolitinib, durvalumab, combination therapy, EGFR tyrosine kinase inhibitors, MEK inhibitors, MET inhibitors, PD-L1 inhibitors, dose-limiting toxicity, safety and tolerability, objective response rate, advanced lung cancer
MeSH terms
Acrylamides, Aniline Compounds, Antibodies, Monoclonal, Antineoplastic Combined Chemotherapy Protocols, Benzimidazoles, Carcinoma, Non-Small-Cell Lung, Humans, Indoles, Lung Neoplasms, Mutation, Pyrazines, Pyrimidines, Triazines, Protein Kinase Inhibitors, ErbB Receptors

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