Neoadjuvant Osimertinib for Resectable <i>EGFR</i> -Mutated Non–Small Cell Lung Cancer

C Collin M. Blakely Y Yuri Rukazenkov (Oncology Research and Development, AstraZeneca, Cambridge, United Kingdom) X Xiangning Huang (Biometrics, Late-stage Development, Oncology R&amp;D, AstraZeneca, Cambridge, United Kingdom) A Anupriya Dayal (Late-stage Development, Oncology R&amp;D, AstraZeneca, Gaithersburg, MD) G Gudrun Absenger M Maximilian J. Hochmair (Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Klinik Floridsdorf, Vienna, Austria) C Clarissa Baldotto (Instituto D´Or de Pesquisa e Ensino, Rio De Janeiro, Brazil) G Georgia Fiuza Alencar Araripe J Jose Miziara J José Fernando Moura C Carlos H.A. Teixeira (Clinical Oncology Department, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil) N Nataliya Chilingirova R Rossitza Krasteva V Velko Minchev (UMHAT “Sofiamed”, Sofia, Bulgaria) M Marc de Perrot J Jonathan Spicer M Marcelo Garrido (Hemato-Oncology Department, SAGA Clinical Trial Center and Universidad Mayor, Santiago, Chile) M María Paz Saavedra (Orlandi Oncología, Santiago, Chile) K Kaican Cai (Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China) C Chang Chen K Ke-Neng Chen (State Key Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing) Q Qixun Chen (Zhejiang Cancer Hospital) C Chao Cheng (School of Life Sciences, Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, and Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University) D Duan Hongbing W Wentao Fang (Shanghai East Hospital, Tongji University, Shanghai, China) Y Yongtao Han (Department of Thoracic Surgery, Sichuan Cancer Hospital &amp; Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China) J Jianxing He (State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory Disease National Center for Respiratory Medicine Guangzhou Institute of Respiratory Health Guangzhou China) G Gaofeng Li S Shanqing Li (Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing) Q Quan Lin L Lunxu Liu B Buhai Wang J Jingdi Wang Q Qun Wang (State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine, Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research) W Wenxiang Wang (RemeGen, Yantai, China) M Ming Wu N Nan Wu L Ligang Xing (Shandong Cancer Hospital, Jinan, China) R Runxiang Yang (Department of Internal Medicine I, Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China) B Bentong Yu (Department of Thoracic Surgery, First Affiliated Hospital of Nanchang University, Nanchang, China) W Wei Zhang J Jun Zhao (Department of Thoracic Oncology Beijing Cancer Hospital Beijing China) M Ming Zhou (Centre for Catalysis and Clean Energy, Gold Coast Campus) S Sigolène Galland-Girodet F Frank Griesinger (Department of Hematology and Oncology, Pius Hospital, University Medicine Oldenburg, Oldenburg, Germany) J Justyna Rawluk W Wolfgang Schütte P Prabhat Malik B Bhavesh Poladia J Jair Bar (Institute of Oncology Chaim Sheba Medical Center Ramat Gan Israel) E Elizabeth Dudnik D Diego Cortinovis D Domenico Galetta (IRCCS Istituto Tumori Giovanni Paolo II, Bari, Italy) S Silvia Novello S Sabrina Rossi N Norihiko Ikeda T Toshi Menju S Shuji Murakami (Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan) M Morihito Okada J Jiro Okami A Akira Ono (Department of Microbiology & Immunology, University of Michigan Medical School) M Miyako Satouchi S Shunichi Sugawara (Department of Pulmonary Medicine, Sendai Kousei Hospital, Sendai, Japan) H Hidemi Suzuki K Kazuya Takamochi H Hiroshi Tanaka M Masahiro Tsuboi (National Cancer Center Hospital East, Kashiwa, Japan) Y Yasuhiro Tsutani (Kindai University, Osaka, Japan) N Noriko Yanagitani (Department of Thoracic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo) Y Yasushi Yatabe O Oscar Arrieta Rodriguez F Froylan López-López J Jerónimo Rodríguez Cid A Ana Fernandez J Jarosław Kołb-Sielecki J Jusang Kim S Sung Yong Lee S Seung Hyeun Lee S Sun-Hyo Park S Seung Soo Yoo S Seong Hoon Yoon (Department of Internal Medicine, Pusan National University, School of Medicine, and Yangsan Hospital, Yangsan, Republic of Korea) T Tatiana Kleimenteva G Guzel Mukhametshina (SAHI Republican Clinical Cancer Dispensary, Ministry of Healthcare of the Republic of Tatarstan, Kazan, Russian Federation) P Petr Yablonskiy M Manuel Domine Gomez A Alex Martinez-Marti (Department of Medical Oncology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Barcelona, Spain) M Mariano Provencio Pulla U Ulrich Richter W Walter Weder G Gee Chen Chang C Chao-Hsun Chen Y Yuh-Min Chen (Taipei Veterans General Hospital, Taipei, Taiwan) H Han-Pin Kuo K Kang-Yun Lee J Jin-Yuan Shih (Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan) T Touch Ativitavas M Manoch Buranachokphaisan J Jarin Chindaprasirt H Hataiwan Ratanabunjerdkul S Somcharoen Saeteng P Piyada Sitthideatphaiboon M Mustafa Dikilitas M Mehmet Sendur S Shobhit Baijal C Carles Escriu (Department of Medical Oncology, Clatterbridge Cancer Centre National Health Service Foundation Trust, Liverpool, United Kingdom) A Arya Amini (City of Hope Medical Center, Duarte, CA) I Ian Anderson (California Institute of Technology) C Collin M. Blakley A Adam Bograd J Jamie E. Chaft (Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY) S Sanja Dacic (Department of Pathology, Yale School of Medicine, New Haven, CT) D David Finley J Jonathan Goldman (University of California, Los Angeles, Los Angeles) E Erminia Massarelli (City of Hope—Comprehensive Cancer Center, Duarte, CA) J Julia Rotow C Catherine Shu A Alexander Spira (NEXT Oncology Virgina, Virgina Cancer Specialists Research Institute, Fairfax) H Hien Nguyen N Nguyen Hoang Gia (Department of Medical Oncology, Hanoi Oncology Hospital, Hanoi, Vietnam) N Nguyen Viet Nhung M Mai Tran D Diep Vo V Vinh Vu

Abstract

PURPOSE Adjuvant osimertinib is the standard of care for patients with resected epidermal growth factor receptor ( EGFR )–mutated non–small cell lung cancer (NSCLC). Neoadjuvant treatment could improve surgical and long-term outcomes. METHODS In this randomized, controlled, phase III study, patients with resectable, EGFR -mutated, stage II-IIIB NSCLC were randomly assigned (1:1:1) to receive neoadjuvant osimertinib (80 mg orally once daily for ≥9 weeks) plus platinum-based chemotherapy (once every 3 weeks for three cycles), osimertinib monotherapy (for ≥9 weeks), or placebo plus platinum-based chemotherapy (control), followed by surgical resection. Adjuvant osimertinib was offered to eligible patients after completion of surgery. The primary end point was major pathologic response (MPR) by blinded central pathology review. Event-free survival (EFS) was a secondary end point. RESULTS Overall, 358 patients were randomly assigned to receive osimertinib plus chemotherapy (121 patients), osimertinib monotherapy (117 patients), or placebo plus chemotherapy (120 patients). Osimertinib plus chemotherapy (MPR rate 26%) and osimertinib monotherapy (25%) demonstrated statistically significant improvement in the MPR rate versus placebo plus chemotherapy (2%), with corresponding odds ratios of 19.82 (95.002% CI, 4.60 to 85.33; P &lt; .0001) and 19.28 (99.9% CI, 1.71 to 217.39; P &lt; .0001), respectively. With 15% data maturity, the EFS rates at 12 months were 93%, 95%, and 83% with osimertinib plus chemotherapy, osimertinib monotherapy, and placebo plus chemotherapy, respectively. In the neoadjuvant period, grade ≥3 adverse events of any cause occurred in 36%, 13%, and 33% of patients with osimertinib plus chemotherapy, osimertinib monotherapy, and placebo plus chemotherapy, respectively. No new safety concerns were identified. CONCLUSION Neoadjuvant osimertinib with or without chemotherapy demonstrated statistically significant improvement in the MPR rate over chemotherapy alone in patients with resectable, EGFR -mutated, stage II-IIIB NSCLC.

Article Details

Volume / Issue Vol. 43, Issue 26
Published September 10, 2025
Pages 2875-2887
ISSN 0732-183X
Publisher Lippincott Williams & Wilkins

Journal Info

Journal of Clinical Oncology

Lippincott Williams & Wilkins

ISSN: 0732-183X Health Sciences

Authors (123)

C

Collin M. Blakely

Y

Yuri Rukazenkov

Oncology Research and Development, AstraZeneca, Cambridge, United Kingdom

X

Xiangning Huang

Biometrics, Late-stage Development, Oncology R&amp;D, AstraZeneca, Cambridge, United Kingdom

A

Anupriya Dayal

Late-stage Development, Oncology R&amp;D, AstraZeneca, Gaithersburg, MD

G

Gudrun Absenger

M

Maximilian J. Hochmair

Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Klinik Floridsdorf, Vienna, Austria

C

Clarissa Baldotto

Instituto D´Or de Pesquisa e Ensino, Rio De Janeiro, Brazil

G

Georgia Fiuza Alencar Araripe

J

Jose Miziara

J

José Fernando Moura

C

Carlos H.A. Teixeira

Clinical Oncology Department, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil

N

Nataliya Chilingirova

R

Rossitza Krasteva

V

Velko Minchev

UMHAT “Sofiamed”, Sofia, Bulgaria

M

Marc de Perrot

J

Jonathan Spicer

M

Marcelo Garrido

Hemato-Oncology Department, SAGA Clinical Trial Center and Universidad Mayor, Santiago, Chile

M

María Paz Saavedra

Orlandi Oncología, Santiago, Chile

K

Kaican Cai

Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China

C

Chang Chen

K

Ke-Neng Chen

State Key Laboratory of Molecular Oncology, Peking University Cancer Hospital and Institute, Beijing

Q

Qixun Chen

Zhejiang Cancer Hospital

C

Chao Cheng

School of Life Sciences, Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, and Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University

D

Duan Hongbing

W

Wentao Fang

Shanghai East Hospital, Tongji University, Shanghai, China

Y

Yongtao Han

Department of Thoracic Surgery, Sichuan Cancer Hospital &amp; Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China

J

Jianxing He

State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory Disease National Center for Respiratory Medicine Guangzhou Institute of Respiratory Health Guangzhou China

G

Gaofeng Li

S

Shanqing Li

Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing

Q

Quan Lin

L

Lunxu Liu

B

Buhai Wang

J

Jingdi Wang

Q

Qun Wang

State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine, Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research

W

Wenxiang Wang

RemeGen, Yantai, China

M

Ming Wu

N

Nan Wu

L

Ligang Xing

Shandong Cancer Hospital, Jinan, China

R

Runxiang Yang

Department of Internal Medicine I, Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China

B

Bentong Yu

Department of Thoracic Surgery, First Affiliated Hospital of Nanchang University, Nanchang, China

W

Wei Zhang

J

Jun Zhao

Department of Thoracic Oncology Beijing Cancer Hospital Beijing China

M

Ming Zhou

Centre for Catalysis and Clean Energy, Gold Coast Campus

S

Sigolène Galland-Girodet

F

Frank Griesinger

Department of Hematology and Oncology, Pius Hospital, University Medicine Oldenburg, Oldenburg, Germany

J

Justyna Rawluk

W

Wolfgang Schütte

P

Prabhat Malik

B

Bhavesh Poladia

J

Jair Bar

Institute of Oncology Chaim Sheba Medical Center Ramat Gan Israel

E

Elizabeth Dudnik

D

Diego Cortinovis

D

Domenico Galetta

IRCCS Istituto Tumori Giovanni Paolo II, Bari, Italy

S

Silvia Novello

S

Sabrina Rossi

N

Norihiko Ikeda

T

Toshi Menju

S

Shuji Murakami

Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan

M

Morihito Okada

J

Jiro Okami

A

Akira Ono

Department of Microbiology & Immunology, University of Michigan Medical School

M

Miyako Satouchi

S

Shunichi Sugawara

Department of Pulmonary Medicine, Sendai Kousei Hospital, Sendai, Japan

H

Hidemi Suzuki

K

Kazuya Takamochi

H

Hiroshi Tanaka

M

Masahiro Tsuboi

National Cancer Center Hospital East, Kashiwa, Japan

Y

Yasuhiro Tsutani

Kindai University, Osaka, Japan

N

Noriko Yanagitani

Department of Thoracic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo

Y

Yasushi Yatabe

O

Oscar Arrieta Rodriguez

F

Froylan López-López

J

Jerónimo Rodríguez Cid

A

Ana Fernandez

J

Jarosław Kołb-Sielecki

J

Jusang Kim

S

Sung Yong Lee

S

Seung Hyeun Lee

S

Sun-Hyo Park

S

Seung Soo Yoo

S

Seong Hoon Yoon

Department of Internal Medicine, Pusan National University, School of Medicine, and Yangsan Hospital, Yangsan, Republic of Korea

T

Tatiana Kleimenteva

G

Guzel Mukhametshina

SAHI Republican Clinical Cancer Dispensary, Ministry of Healthcare of the Republic of Tatarstan, Kazan, Russian Federation

P

Petr Yablonskiy

M

Manuel Domine Gomez

A

Alex Martinez-Marti

Department of Medical Oncology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Barcelona, Spain

M

Mariano Provencio Pulla

U

Ulrich Richter

W

Walter Weder

G

Gee Chen Chang

C

Chao-Hsun Chen

Y

Yuh-Min Chen

Taipei Veterans General Hospital, Taipei, Taiwan

H

Han-Pin Kuo

K

Kang-Yun Lee

J

Jin-Yuan Shih

Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan

T

Touch Ativitavas

M

Manoch Buranachokphaisan

J

Jarin Chindaprasirt

H

Hataiwan Ratanabunjerdkul

S

Somcharoen Saeteng

P

Piyada Sitthideatphaiboon

M

Mustafa Dikilitas

M

Mehmet Sendur

S

Shobhit Baijal

C

Carles Escriu

Department of Medical Oncology, Clatterbridge Cancer Centre National Health Service Foundation Trust, Liverpool, United Kingdom

A

Arya Amini

City of Hope Medical Center, Duarte, CA

I

Ian Anderson

California Institute of Technology

C

Collin M. Blakley

A

Adam Bograd

J

Jamie E. Chaft

Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY

S

Sanja Dacic

Department of Pathology, Yale School of Medicine, New Haven, CT

D

David Finley

J

Jonathan Goldman

University of California, Los Angeles, Los Angeles

E

Erminia Massarelli

City of Hope—Comprehensive Cancer Center, Duarte, CA

J

Julia Rotow

C

Catherine Shu

A

Alexander Spira

NEXT Oncology Virgina, Virgina Cancer Specialists Research Institute, Fairfax

H

Hien Nguyen

N

Nguyen Hoang Gia

Department of Medical Oncology, Hanoi Oncology Hospital, Hanoi, Vietnam

N

Nguyen Viet Nhung

M

Mai Tran

D

Diep Vo

V

Vinh Vu