A Study of Osimertinib With or Without Chemotherapy as 1st Line Treatment in Patients With Mutated Epidermal Growth Factor Receptor Non-Small Cell Lung Cancer (FLAURA2)

Summary

The reason for the study is to find out if an experimental combination of an oral medication called osimertinib (TAGRISSO®) when used in combination with chemotherapy is more effective than giving osimertinib alone for the treatment of locally advanced or metastatic non-small cell lung cancer. Some lung cancers are due to mutations in the Deoxyribonucleic acid (DNA) which, if known, can help physicians decide the best treatment for their patients. One type of mutation can occur in the gene that produces a protein on the surface of cells called the Epidermal Growth Factor Receptor (EGFR). Osimertinib is an Epidermal Growth Factor Receptor (EGFR) tyrosine kinase inhibitor (TKI) that targets Epidermal Growth Factor Receptor (EGFR) mutations. Unfortunately, despite the benefit observed for patients treated with osimertinib, the vast majority of cancers are expected to develop resistance to the drug over time. The exact reasons why resistance develops are not fully understood but based upon clinical research it is hoped that combining osimertinib with another type of anti-cancer therapy known as chemotherapy will delay the onset of resistance and the worsening of a patient's cancer. In total the study aims to enroll approximately 586 patients, consisting of approximately 30 patients who will participate in a safety run-in component of the trial, and approximately 556 who will receive osimertinib alone or osimertinib in combination with chemotherapy in the main trial. In the main part of the trial there is a one in two chance of receiving osimertinib alone, and the treatment is decided at random by a computer. The study involves a Screening Period, Treatment Period, and Follow up Period. Whilst receiving study medication, it is expected patients will attend, on average, approximately 15 visits over the first 12 months and then approximately 4 visits per year afterwards. Each visit will last about 2 to 6 hours depending on the arrangement of medical assessments by the study centre.

Timeline

Start

2019-07-02

Primary completion

2023-04-03

Completion

2026-12-22

Publications

• Janne PA, Planchard D, Kobayashi K, Yang JC, Liu Y, Valdiviezo N, Kim TM, Jiang L, Kagamu H, Yanagitani N, Wang J, Biswas B, Poltoratskiy A, Neron Y, Rojas C, Koubkova L, Escriu C, Ezeife DA, Mann H, Armenteros-Monterroso E, Rukazenkov Y, Lee CK; FLAURA2 Investigators. Survival with Osimertinib plus Chemotherapy in EGFR-Mutated Advanced NSCLC. N Engl J Med. 2026 Jan 1;394(1):27-38. doi: 10.1056/NEJMoa2510308. Epub 2025 Oct 17.
• Murat-Onana ML, Ramalingam SS, Janne PA, Gray JE, Ahn MJ, John T, Yatabe Y, Huang X, Rukazenkov Y, Javey M, Brown H, Li-Sucholeiki X. EGFR mutation testing across the osimertinib clinical program. Lung Cancer. 2025 Jun;204:108549. doi: 10.1016/j.lungcan.2025.108549. Epub 2025 Apr 18.
• Janne PA, Planchard D, Kobayashi K, Cheng Y, Lee CK, Valdiviezo N, Laktionov K, Yang TY, Yu Y, Kato T, Jiang L, Chewaskulyong B, Lucien Geater S, Maurel JM, Rojas C, Takahashi T, Havel L, Shepherd FA, Tanaka K, Ghiorghiu D, Amin NP, Armenteros-Monterroso E, Huang X, Chaudhry AA, Yang JC. CNS Efficacy of Osimertinib With or Without Chemotherapy in Epidermal Growth Factor Receptor-Mutated Advanced Non-Small-Cell Lung Cancer. J Clin Oncol. 2024 Mar 1;42(7):808-820. doi: 10.1200/JCO.23.02219. Epub 2023 Dec 2.
• Planchard D, Janne PA, Cheng Y, Yang JC, Yanagitani N, Kim SW, Sugawara S, Yu Y, Fan Y, Geater SL, Laktionov K, Lee CK, Valdiviezo N, Ahmed S, Maurel JM, Andrasina I, Goldman J, Ghiorghiu D, Rukazenkov Y, Todd A, Kobayashi K; FLAURA2 Investigators. Osimertinib with or without Chemotherapy in EGFR-Mutated Advanced NSCLC. N Engl J Med. 2023 Nov 23;389(21):1935-1948. doi: 10.1056/NEJMoa2306434. Epub 2023 Nov 8.
• Planchard D, Feng PH, Karaseva N, Kim SW, Kim TM, Lee CK, Poltoratskiy A, Yanagitani N, Marshall R, Huang X, Howarth P, Janne PA, Kobayashi K. Osimertinib plus platinum-pemetrexed in newly diagnosed epidermal growth factor receptor mutation-positive advanced/metastatic non-small-cell lung cancer: safety run-in results from the FLAURA2 study. ESMO Open. 2021 Oct;6(5):100271. doi: 10.1016/j.esmoop.2021.100271. Epub 2021 Sep 17.
• White MN, Piotrowska Z, Stirling K, Liu SV, Banwait MK, Cunanan K, Sequist LV, Wakelee HA, Hausrath D, Neal JW. Combining Osimertinib With Chemotherapy in EGFR-Mutant NSCLC at Progression. Clin Lung Cancer. 2021 May;22(3):201-209. doi: 10.1016/j.cllc.2021.01.010. Epub 2021 Jan 27.
• Asahina H, Tanaka K, Morita S, Maemondo M, Seike M, Okamoto I, Oizumi S, Kagamu H, Takahashi K, Kikuchi T, Isobe T, Sugio K, Kobayashi K. A Phase II Study of Osimertinib Combined With Platinum Plus Pemetrexed in Patients With EGFR-Mutated Advanced Non-Small-cell Lung Cancer: The OPAL Study (NEJ032C/LOGIK1801). Clin Lung Cancer. 2021 Mar;22(2):147-151. doi: 10.1016/j.cllc.2020.09.023. Epub 2020 Oct 16.

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