Abstract 1668
Background
FOLFIRINOX has shown promising results in LA or BR pancreatic adenocarcinoma (PA) in non-randomized series. We report here an updated large cohort of pts treated with FOLFIRINOX for a LA or BR PA.
Methods
This French retro-prospective multicenter study included all consecutive patients (pts), PS 0/1/2, with non-metastatic, non-resectable, non-pretreated, LA or BR PA treated with FOLFIRINOX. Non-resectability was defined by each center’s multidisciplinary team meeting at diagnosis according to the ISGPS guidelines. FOLFIRINOX chemotherapy (CT) was performed as described in the PRODIGE 4 trial until progression, major toxicity or consolidation treatment radiotherapy (RT) or surgery.
Results
At the time of database lock, in December 2018, 293 pts were included (42% female, 33% > 65 years, 97% PS < 2). Disease was classified as BR (32%) or LA (68%). After a median of 7 (IQR: 5-11) CT cycles, objective response rate was 29% and stable disease 51%. Subsequent RT was performed in 42% and 24% had a curative intent surgery (R0: 72%; ypT0N0: 9%). Resection rates were 40% for BR and 17% for LA pts. Main G3/4 toxicities were: fatigue (14%), neutropenia (12%), nausea (8%) and diarrhea (7%). Oxaliplatin-induced peripheral neuropathy G2/3 was observed in 34%. 13% of pts has stopped chemotherapy for toxicity including 2 toxic deaths. After consolidation RT and/or surgery disease progression occurred in 52% and was mainly metastatic (56%). After a median follow-up of 24 months (mo), median OS (mOS) and PFS were 21 and 12 mo, respectively. mOS was 27 mo for BR and 19 mo for LA pts (p=.002). For pts treated by CT alone, or CT+RT, or CT+/-RT+surgery mOS were 14 mo, 22 mo and not reached, respectively (p<.0001). A trend to a better survival was seen when RT was performed before surgery (mOS 29 mo vs not reached, p=.08).
Conclusions
FOLFIRINOX for LA and BR PA seems to be effective with a manageable toxicity profile. However secondary surgery rate and OS were lower than what we previously reported, but similar to the meta-analysis we previously published. These promising results in “real life” pts have now to be confirmed in phase III randomized trial (PRODIGE 29 - NEOPAN). Updated results will be presented at the meeting.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
AGEO.
Funding
Has not received any funding.
Disclosure
E. Francois: Advisory / Consultancy: Roche; Advisory / Consultancy: Servier; Advisory / Consultancy: Amgen; Advisory / Consultancy: MSD; Advisory / Consultancy: Sanofi; Advisory / Consultancy: Novartis. J. Bachet: Advisory / Consultancy, Travel / Accommodation / Expenses: Amgen; Advisory / Consultancy: AstraZeneca; Advisory / Consultancy: Bayer; Advisory / Consultancy, Travel / Accommodation / Expenses: Merck Serono; Advisory / Consultancy: Pierre Fabre; Advisory / Consultancy, Travel / Accommodation / Expenses: Roche; Advisory / Consultancy, Travel / Accommodation / Expenses: Servier; Advisory / Consultancy, Travel / Accommodation / Expenses: Sanofi. D. Tougeron: Advisory / Consultancy: Amgen; Advisory / Consultancy: Merck; Advisory / Consultancy: Novartis; Advisory / Consultancy: BMS; Advisory / Consultancy: MSD; Advisory / Consultancy: AstraZeneca; Advisory / Consultancy: Sanofi; Advisory / Consultancy: Roche; Advisory / Consultancy: Bayer; Advisory / Consultancy: Servier. J. Forestier: Honoraria (self): Amgen; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): Bayer; Honoraria (self), Speaker Bureau / Expert testimony, Research grant / Funding (self): Ipsen; Honoraria (self), Advisory / Consultancy, Speaker Bureau / Expert testimony, Travel / Accommodation / Expenses: Sanofi; Honoraria (self), Advisory / Consultancy, Speaker Bureau / Expert testimony: Merck; Honoraria (self): Servier. R. Coriat: Advisory / Consultancy: Novartis; Advisory / Consultancy: Amgen; Advisory / Consultancy: Roche; Advisory / Consultancy: Merck; Advisory / Consultancy: Ipsen; Advisory / Consultancy: Bayer; Advisory / Consultancy: Keocyt. J. Taieb: Advisory / Consultancy: Amgen; Advisory / Consultancy: Lily; Advisory / Consultancy: Sanofi; Advisory / Consultancy: Roche; Advisory / Consultancy: Merck; Advisory / Consultancy: MSD; Advisory / Consultancy: Celgene; Advisory / Consultancy: Servier; Advisory / Consultancy: Sirtex; Advisory / Consultancy: Pierre Fabre; Advisory / Consultancy: Amgen; Advisory / Consultancy: Amgen. All other authors have declared no conflicts of interest.
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