期刊
INVESTIGATIONAL NEW DRUGS
卷 36, 期 4, 页码 683-695出版社
SPRINGER
DOI: 10.1007/s10637-018-0580-2
关键词
Clinical trial; JAK1 protein tyrosine kinase; JAK2 protein tyrosine kinase; Pancreatic neoplasms
资金
- Incyte Corporation (Wilmington, DE, USA)
Background Ruxolitinib, a Janus kinase 1 (JAK1)/JAK2 inhibitor, plus capecitabine improved overall survival (OS) vs capecitabine in a subgroup analysis of patients with metastatic pancreatic cancer and systemic inflammation (C-reactive protein [CRP] > 13 mg/dL) in the randomized phase II RECAP study. We report results from two randomized phase III studies, JANUS 1 (NCT02117479) and JANUS 2 (NCT02119663). Patients and Methods Adults with advanced/metastatic pancreatic cancer, one prior chemotherapy regimen and CRP > 10 mg/L were randomized 1:1 (stratified by modified Glasgow Prognostic Score [1 vs 2] and Eastern Cooperative Oncology Group performance status [0/1 vs 2]) to 21-day cycles of ruxolitinib 15 mg twice daily plus capecitabine 2000 mg/m(2)/day (Days 1-14) or placebo plus capecitabine. The primary endpoint was OS. Results Both studies were terminated following a planned interim futility/efficacy analysis of JANUS 1. Overall, 321 and 86 patients were randomized in JANUS 1 (ruxolitinib: n = 161; placebo: n = 160) and JANUS 2 (ruxolitinib: n = 43; placebo: n = 43). There was no significant difference in OS or progression-free survival (PFS) between treatments in JANUS 1 (OS: hazard ratio [HR], 0.969, 95% confidence interval [CI], 0.747-1.256; PFS: HR, 1.056; 95% CI, 0.827-1.348) or JANUS 2 (OS: HR, 1.584; 95% CI, 0.886-2.830; PFS: HR, 1.166; 95% CI, 0.687-1.978). The most common hematologic adverse event was anemia. No new safety signals with ruxolitinib or capecitabine were identified. Conclusions Ruxolitinib plus capecitabine was well tolerated in refractory pancreatic cancer patients; this combination did not improve survival.
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