A Phase 2 study of nivolumab in combination with modified FOLFIRINOX for metastatic pancreatic cancer

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Abstract
Background: Nivolumab with modified FOLFIRINOX (mFOLFIRINOX) may have additive antitumour effects while minimising chemotherapy cytotoxicity. We assessed the efficacy and safety of nivolumab+mFOLFIRINOX in metastatic pancreatic cancer. Methods: Thirty-one treatment-naïve patients aged ≥20 years with metastatic unresectable/recurrent pancreatic cancer (≥1 measurable lesion per Response Evaluation Criteria in Solid Tumours version 1.1) and Eastern Cooperative Oncology Group 0/1 score and life expectancy ≥90 days received nivolumab (480 mg, every 4 weeks) plus mFOLFIRINOX. The primary endpoint was objective response rate (ORR). Secondary endpoints included overall survival (OS), progression-free survival (PFS) and safety. Results: At the median follow-up of 13.4 months, the ORR was 32.3% (complete response 0%; partial response 32.3%) and the median duration of response was 7.4 (range: 3.5–21.9) months; the primary endpoint was not met. Median OS and PFS were 13.4 (95% confidence interval [CI]: 10.6–16.6) months and 7.4 (95% CI: 3.9–9.2) months, respectively. The 1-year survival rate was 54.8% (95% CI: 36.0%–70.3%). Drug-related serious adverse events were reported in 29.0% of the patients; 3.2% drug-related adverse events led to discontinuation, and none led to death within 30-day safety window. Conclusion: Nivolumab+mFOLFIRINOX was tolerable in patients with metastatic pancreatic cancer. ORR and survival were comparable to previously reported data. (JapicCTI-184230)

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