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Safety and efficacy of nivolumab in combination with S-1/capecitabine plus oxaliplatin in patients with previously untreated, unresectable, advanced, or recurrent gastric/gastroesophageal junction cancer: interim results of a randomized, phase II trial (ATTRACTION-4).


ABSTRACT: BACKGROUND:Nivolumab is approved as an option for third- or later-line treatment of advanced gastric/gastroesophageal junction (G/GEJ) cancer in several countries after ATTRACTION-2. To further improve the therapeutic efficacy of first-line therapy, exploration of a nivolumab-chemotherapy combination is warranted. In part 1 (phase II) of ATTRACTION-4, the safety and efficacy of nivolumab combined with S-1 plus oxaliplatin (SOX) or capecitabine plus oxaliplatin (CapeOX) as first-line therapy for unresectable advanced or recurrent human epidermal growth factor receptor 2 (HER2)-negative G/GEJ cancer were evaluated. PATIENTS AND METHODS:Patients were randomized (1 : 1) to receive nivolumab (360?mg intravenously every 3?weeks) plus SOX (S-1, 40?mg/m2 orally twice daily for 14?days followed by 7?days off; oxaliplatin, 130?mg/m2 intravenously on day 1 every 3?weeks) or CapeOX (capecitabine, 1000?mg/m2 orally twice daily for 14?days followed by 7?days off; oxaliplatin, 130?mg/m2 intravenously on day 1 every 3?weeks) until disease progression, unacceptable toxicity, or consent withdrawal. RESULTS:Of 40 randomized patients, 39 (nivolumab plus SOX, 21; nivolumab plus CapeOX, 18) and 38 (21 and 17, respectively) comprised the safety and efficacy populations, respectively. Most frequent (>10%) grade 3/4 treatment-related adverse events were neutropenia (14.3%) in the nivolumab plus SOX group, and neutropenia (16.7%), anemia, peripheral sensory neuropathy, decreased appetite, type 1 diabetes mellitus, and nausea (11.1% each) in the nivolumab plus CapeOX group. No treatment-related death occurred. Objective response rate was 57.1% (95% confidence interval 34.0-78.2) with nivolumab plus SOX and 76.5% (50.1-93.2) with nivolumab plus CapeOX. Median overall survival was not reached (NR) in both groups. Median progression-free survival was 9.7?months (5.8-NR) and 10.6?months (5.6-12.5), respectively. CONCLUSION:Nivolumab combined with SOX/CapeOX was well tolerated and demonstrated encouraging efficacy for unresectable advanced or recurrent HER2-negative G/GEJ cancer. ATTRACTION-4 has proceeded to part 2 (phase III) to compare nivolumab plus SOX/CapeOX versus placebo plus SOX/CapeOX. CLINICALTRIALS.GOV ID:NCT02746796.

SUBMITTER: Boku N 

PROVIDER: S-EPMC6386029 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Safety and efficacy of nivolumab in combination with S-1/capecitabine plus oxaliplatin in patients with previously untreated, unresectable, advanced, or recurrent gastric/gastroesophageal junction cancer: interim results of a randomized, phase II trial (ATTRACTION-4).

Boku N N   Ryu M-H MH   Kato K K   Chung H C HC   Minashi K K   Lee K-W KW   Cho H H   Kang W K WK   Komatsu Y Y   Tsuda M M   Yamaguchi K K   Hara H H   Fumita S S   Azuma M M   Chen L-T LT   Kang Y-K YK  

Annals of oncology : official journal of the European Society for Medical Oncology 20190201 2


<h4>Background</h4>Nivolumab is approved as an option for third- or later-line treatment of advanced gastric/gastroesophageal junction (G/GEJ) cancer in several countries after ATTRACTION-2. To further improve the therapeutic efficacy of first-line therapy, exploration of a nivolumab-chemotherapy combination is warranted. In part 1 (phase II) of ATTRACTION-4, the safety and efficacy of nivolumab combined with S-1 plus oxaliplatin (SOX) or capecitabine plus oxaliplatin (CapeOX) as first-line ther  ...[more]

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