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Poster Display session 2

5257 - Outcomes of First Line FOLFIRINOX (FFX) Versus Gemcitabine and Nab-Paclitaxel (GN) in Patients with Advanced Pancreatic Cancer: Multi-Institutional Canadian Sites Experience

Date

29 Sep 2019

Session

Poster Display session 2

Topics

Tumour Site

Pancreatic Adenocarcinoma

Presenters

Neha Papneja

Citation

Annals of Oncology (2019) 30 (suppl_5): v253-v324. 10.1093/annonc/mdz247

Authors

N. Papneja1, S. Ahmed2, P. Mondal3, I. Barrera4, A. Papneja4, G. Batist5, P. Kavan5

Author affiliations

  • 1 Medical Oncology, McGill University, H3T1E2 - Montreal/CA
  • 2 Oncology, Saskatoon Cancer Centre University of Saskatchewan, S7N 4H4 - Saskatoon/CA
  • 3 Clinical Research Support Unit, University of Saskatchewan, S7N5E5 - Saskatoon/CA
  • 4 Department Of Oncology, Jewish General Hospital McGill University, H3T 1E2 - Montreal/CA
  • 5 Department Of Oncology, Segal Cancer Center at Jewish General Hospital McGill University, H3T 1E2 - Montreal/CA

Resources

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Abstract 5257

Background

FOLFIRINOX (FFX) and Gemcitabine with nab-Paclitaxel (GN) are both proven to be superior to Gemcitabine in first line treatment for advanced pancreatic cancer (APC). However, there has been no phase 3 randomized controlled trials to prove FFX is superior to GN in APC. This population-based cohort study was conducted to compare efficacy and safety profiles of the two standard regimens in APC.

Methods

In this retrospective cohort study, we evaluated all newly diagnosed patients (pts) with APC who received either FFX or GN as first line therapy during 2010-2018 at three Canadian institutions. The primary objective was to assess survival. Secondary objective was to compare safety profile of the two regimens. Kaplan Meier method and log-rank test were used for survival curves.

Results

There were 231 eligible pts identified: 143 received FFX and 88 received GN. FFX pts were slightly younger than GN (median age: 62 (IQR: 56-67) vs 66 (IQR: 58-73) respectively). There were predominantly more males: FFX 89 (62.2%) vs GN 46 (52.3%). WHO performance status (PS) of 0 were 38 (28.4%) vs 14 (16.5%) and 1 were 90 (67.2%) vs 65 (76.5%) respectively. The median progression-free survival (PFS) of FFX was 5.5 months (mts) (95% CI: 5.0-6.7) vs 5.1 mts (95% CI: 3.8-7.1) with GN (p = 0.37). The median overall survival (OS) with FFX was 9.3 mts (95% CI: 7.5 – 11.1) vs. 10.2 mts (95% CI: 6.8-11.3) with GN (p = 0.81). On multivariate analysis chemotherapy regimen was not correlated with PFS or OS. There were more grade 3-4 toxicity in FFX vs GN group: diarrhea – 22 (15.4%) vs 3 (3.4%) (p = 0.004), nausea – 20 (14%) vs 6 (6.8%), vomiting – 13 (9.1%) vs 6 (6.8%), peripheral sensory neuropathy (PSN) – 8 (5.6%) vs 3 (3.4%), thrombocytopenia – 28 (19.6%) vs 5 (5.7%) (p = 0.003) respectively. Gr 3-4 neutropenia rates were similar in both regimens: 23 (16%) in FFX vs 15 (17%) in GN.

Conclusions

Our results revealed that FFX or GN had comparable survival and safety profiles. Given lower Gr 3-4 toxicity profile of GN regimen, GN is likely preferable choice for majority of pts. FFX could be reserved for young high performance pts.

Clinical trial identification

Editorial acknowledgement

Legal entity responsible for the study

Segal Cancer Centre Jewish General Hospital.

Funding

Has not received any funding.

Disclosure

All authors have declared no conflicts of interest.

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