Helen J Ross, David Kozono, Xiaofei F Wang, James John Urbanic, Terence M Williams, Garth D Nelson, David P Carbone, Dongjun Chung, Ryan Robb, Woo Yul Byun, Tiffany Talabere, Carter DuFrane, Ilze Bara, Katja Schulze, Michelle Brockman, Junheng Gao, Everett E Vokes, Thomas E Stinchcombe
{"title":"Atezolizumab Before and After Chemoradiation for Unresectable Stage III Non-Small Cell Lung Cancer: A Phase II Nonrandomized Controlled Trial.","authors":"Helen J Ross, David Kozono, Xiaofei F Wang, James John Urbanic, Terence M Williams, Garth D Nelson, David P Carbone, Dongjun Chung, Ryan Robb, Woo Yul Byun, Tiffany Talabere, Carter DuFrane, Ilze Bara, Katja Schulze, Michelle Brockman, Junheng Gao, Everett E Vokes, Thomas E Stinchcombe","doi":"10.1001/jamaoncol.2024.1897","DOIUrl":null,"url":null,"abstract":"<p><strong>Importance: </strong>Outcomes for patients with unresectable stage III non-small cell lung cancer (NSCLC) treated with chemoradiation therapy (CRT) have improved with adjuvant immune checkpoint inhibitors, with a reported 5-year overall survival benefit of approximately 10% for adjuvant durvalumab vs placebo after completion of CRT without progression and with preserved performance status. Starting atezolizumab prior to CRT may allow more patients to benefit from immunotherapy.</p><p><strong>Objective: </strong>To evaluate clinical outcomes of patients treated with atezolizumab before and after CRT for unresectable stage III NSCLC.</p><p><strong>Design, setting, and participants: </strong>This single-cohort, phase II, nonrandomized controlled trial was conducted at 11 US sites. Patients with pathologically confirmed, unresectable stage III NSCLC who were treatment naive and had good performance status were enrolled between January 3, 2018, and July 24, 2019. Data were locked on March 21, 2023.</p><p><strong>Interventions: </strong>Patients received four 21-day cycles of atezolizumab, 1200 mg intravenously, with therapy administered on day 1 of each cycle. Patients not experiencing tumor progression continued to CRT (60 Gy to involved fields) concurrent with weekly carboplatin area under the curve of 2 and paclitaxel, 50 mg/m2, followed by planned consolidation carboplatin area under the curve of 6 and paclitaxel, 200 mg/m2, for two 21-day cycles. Patients not experiencing progression continued atezolizumab, 1200 mg, every 21 days to complete 1 year of therapy.</p><p><strong>Main outcomes and measures: </strong>The primary end point was the disease control rate at 12 weeks. Secondary end points were progression-free survival, overall survival, overall response rate, safety, and translational science end points.</p><p><strong>Results: </strong>A total of 62 patients (median [range] age, 63.9 [38.1-86.5] years; 32 female [51.6%]) were enrolled and received at least 1 dose of atezolizumab. The disease control rate at 12 weeks was 74.2% (80% CI, 65.7%-81.4%). Median progression-free survival was 30.0 months (95% CI, 15.8 to not evaluable), and the median overall survival was not reached. The overall survival rate at 24 months was 73.7% (95% CI, 63.4%-85.7%), and the overall response rate was 66.2%. Seventeen patients (27.4%) experienced grade 3 or higher immune-related adverse events, including 1 with grade 5 pneumonitis and 1 with grade 4 Guillain-Barré syndrome. Thirty patients (48.4%) experienced grade 3 or higher treatment-related adverse events.</p><p><strong>Conclusions and relevance: </strong>These findings suggest that neoadjuvant atezolizumab merits further study based on safety and encouraging outcomes.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov Identifier: NCT03102242.</p>","PeriodicalId":48661,"journal":{"name":"Jama Oncology","volume":null,"pages":null},"PeriodicalIF":28.4000,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11273282/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Jama Oncology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1001/jamaoncol.2024.1897","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Biochemistry, Genetics and Molecular Biology","Score":null,"Total":0}
引用次数: 0
Abstract
Importance: Outcomes for patients with unresectable stage III non-small cell lung cancer (NSCLC) treated with chemoradiation therapy (CRT) have improved with adjuvant immune checkpoint inhibitors, with a reported 5-year overall survival benefit of approximately 10% for adjuvant durvalumab vs placebo after completion of CRT without progression and with preserved performance status. Starting atezolizumab prior to CRT may allow more patients to benefit from immunotherapy.
Objective: To evaluate clinical outcomes of patients treated with atezolizumab before and after CRT for unresectable stage III NSCLC.
Design, setting, and participants: This single-cohort, phase II, nonrandomized controlled trial was conducted at 11 US sites. Patients with pathologically confirmed, unresectable stage III NSCLC who were treatment naive and had good performance status were enrolled between January 3, 2018, and July 24, 2019. Data were locked on March 21, 2023.
Interventions: Patients received four 21-day cycles of atezolizumab, 1200 mg intravenously, with therapy administered on day 1 of each cycle. Patients not experiencing tumor progression continued to CRT (60 Gy to involved fields) concurrent with weekly carboplatin area under the curve of 2 and paclitaxel, 50 mg/m2, followed by planned consolidation carboplatin area under the curve of 6 and paclitaxel, 200 mg/m2, for two 21-day cycles. Patients not experiencing progression continued atezolizumab, 1200 mg, every 21 days to complete 1 year of therapy.
Main outcomes and measures: The primary end point was the disease control rate at 12 weeks. Secondary end points were progression-free survival, overall survival, overall response rate, safety, and translational science end points.
Results: A total of 62 patients (median [range] age, 63.9 [38.1-86.5] years; 32 female [51.6%]) were enrolled and received at least 1 dose of atezolizumab. The disease control rate at 12 weeks was 74.2% (80% CI, 65.7%-81.4%). Median progression-free survival was 30.0 months (95% CI, 15.8 to not evaluable), and the median overall survival was not reached. The overall survival rate at 24 months was 73.7% (95% CI, 63.4%-85.7%), and the overall response rate was 66.2%. Seventeen patients (27.4%) experienced grade 3 or higher immune-related adverse events, including 1 with grade 5 pneumonitis and 1 with grade 4 Guillain-Barré syndrome. Thirty patients (48.4%) experienced grade 3 or higher treatment-related adverse events.
Conclusions and relevance: These findings suggest that neoadjuvant atezolizumab merits further study based on safety and encouraging outcomes.
期刊介绍：
At JAMA Oncology, our primary goal is to contribute to the advancement of oncology research and enhance patient care. As a leading journal in the field, we strive to publish influential original research, opinions, and reviews that push the boundaries of oncology science.
Our mission is to serve as the definitive resource for scientists, clinicians, and trainees in oncology globally. Through our innovative and timely scientific and educational content, we aim to provide a comprehensive understanding of cancer pathogenesis and the latest treatment advancements to our readers.
We are dedicated to effectively disseminating the findings of significant clinical research, major scientific breakthroughs, actionable discoveries, and state-of-the-art treatment pathways to the oncology community. Our ultimate objective is to facilitate the translation of new knowledge into tangible clinical benefits for individuals living with and surviving cancer.
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