Efficacy and Safety of Trifluridine/Tipiracil Treatment in Patients With Metastatic Gastric Cancer Who Had Undergone Gastrectomy Subgroup Analyses of a Randomized Clinical Trial
| Autor: | Kazumasa Fujitani, Daniel V.T. Catenacci, Edvard Zhavrid, Kohei Shitara, Hendrik-Tobias Arkenau, Ben George, Michele Ghidini, Wasat Mansoor, Eric Van Cutsem, Maria Alsina, Peter C. Thuss-Patience, Toshihiko Doi, Aliaksandr Prokharau, Lukas Makris, Giordano D. Beretta, Sandra McGuigan, David H. Ilson, Josep Tabernero |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
Cancer Research medicine.medical_specialty Pyrrolidines medicine.medical_treatment Subgroup analysis Neutropenia Placebo Gastroenterology Trifluridine law.invention 03 medical and health sciences 0302 clinical medicine Randomized controlled trial Gastrectomy Stomach Neoplasms law Internal medicine Antineoplastic Combined Chemotherapy Protocols Clinical endpoint Humans Medicine 030212 general & internal medicine business.industry Hazard ratio Middle Aged medicine.disease Clinical trial Drug Combinations Oncology 030220 oncology & carcinogenesis Colorectal Neoplasms business Thymine |
| ISSN: | 0250-0043 |
| Popis: | IMPORTANCE: Trifluridine/tipiracil (FTD/TPI) treatment has shown clinical benefit in patients with pretreated metastatic gastric cancer or gastroesophageal junction cancer (mGC/GEJC). Patients who have undergone gastrectomy constitute a significant proportion of patients with mGC/GEJC. OBJECTIVE: To assess the efficacy and safety of FTD/TPI among patients with previously treated mGC/GEJC who had or had not undergone gastrectomy. DESIGN, SETTING, AND PARTICIPANTS: This preplanned subgroup analysis of TAGS (TAS-102 Gastric Study), a phase 3, randomized, placebo-controlled, clinical trial included patients with mGC/GEJC who had received at least 2 previous chemotherapy regimens, and was conducted at 110 academic hospitals in 17 countries in Europe, Asia, and North America, with enrollment between February 24, 2016, and January 5, 2018; the data cutoff was March 31, 2018. INTERVENTIONS: Patients were randomized 2:1 to receive oral FTD/TPI 35 mg/m2 twice daily or placebo twice daily with best supportive care on days 1 through 5 and days 8 through 12 of each 28-day treatment cycle. MAIN OUTCOMES AND MEASURES: The primary end point was overall survival. This subgroup analysis was conducted to examine potential trends and was not powered for statistical significance. Efficacy and safety end points were evaluated in the subgroups. RESULTS: Of 507 randomized patients (369 [72.8%] male; mean [SD] age, 62.5 [10.5] years), 221 (43.6%) had undergone gastrectomy (147 randomized to FTD/TPI and 74 to placebo) and 286 (56.4%) had not undergone gastrectomy (190 randomized to FTD/TPI and 96 to placebo). In the gastrectomy subgroup, the overall survival hazard ratio (HR) in the FTD/TPI group vs placebo group was 0.57 (95% CI, 0.41-0.79), and the progression-free survival HR was 0.48 (95% CI, 0.35-0.65). In the no gastrectomy subgroup, the overall survival HR in the FTD/TPI group vs placebo group was 0.80 (95% CI, 0.60-1.06), and the progression-free survival HR was 0.65 (95% CI, 0.49-0.85). Among FTD/TPI-treated patients, grade 3 or higher adverse events of any cause occurred in 122 of 145 patients (84.1%) in the gastrectomy subgroup and 145 of 190 (76.3%) in the no gastrectomy subgroup: 64 (44.1%) in the gastrectomy subgroup and 50 (26.3%) in the no gastrectomy subgroup had grade 3 or higher neutropenia, 31 (21.4%) in the gastrectomy subgroup and 33 (17.4%) in the no gastrectomy subgroup had grade 3 or higher anemia, and 21 (14.5%) in the gastrectomy subgroup and 10 (5.3%) in the no gastrectomy subgroup hD grade 3 or higher leukopenia. In the gastrectomy subgroup, 94 (64.8%) had dosing modifications because of adverse events vs 101 (53.2%) in the no gastrectomy subgroup; 15 (10.3%) in the gastrectomy group and 28 (14.7%) in the no gastrectomy group discontinued treatment because of adverse events. Treatment exposure was similar between groups. CONCLUSIONS AND RELEVANCE: The FTD/TPI treatment was tolerable and provided efficacy benefits among patients with pretreated mGC/GEJC regardless of previous gastrectomy. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02500043. ispartof: JAMA ONCOLOGY vol:6 issue:1 ispartof: location:United States status: published |
| Databáze: | OpenAIRE |
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