Ruxolitinib + capecitabine in advanced/metastatic pancreatic cancer after disease progression/intolerance to first-line therapy: JANUS 1 and 2 randomized phase III studies Academic Article uri icon


MeSH Major

  • Antineoplastic Combined Chemotherapy Protocols
  • Carcinoma, Pancreatic Ductal
  • Induction Chemotherapy
  • Pancreatic Neoplasms


  • © 2018 Springer Science+Business Media, LLC, part of Springer Nature Summary: 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.

publication date

  • March 6, 2018



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1007/s10637-018-0580-2

PubMed ID

  • 29508247

Additional Document Info

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