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Clinical Trial
. 2021 Oct 10;39(29):3242-3250.
doi: 10.1200/JCO.20.03329. Epub 2021 Jul 21.

Randomized Phase II Trial Evaluating Two Sequential Treatments in First Line of Metastatic Pancreatic Cancer: Results of the PANOPTIMOX-PRODIGE 35 Trial

Laetitia Dahan  1 , Nicolas Williet  2 , Karine Le Malicot  3 , Jean-Marc Phelip  2 , Jérôme Desrame  4 , Olivier Bouché  5 , Caroline Petorin  6 , David Malka  7 , Christine Rebischung  8 , Thomas Aparicio  9 , Cédric Lecaille  10 , Yves Rinaldi  11 , Anthony Turpin  12 , Anne-Laure Bignon  13 , Jean-Baptiste Bachet  14 , Jean-François Seitz  1 , Come Lepage  15   16 , Eric François  17 ; PRODIGE 35 Investigators/Collaborators
Affiliations
Clinical Trial

Randomized Phase II Trial Evaluating Two Sequential Treatments in First Line of Metastatic Pancreatic Cancer: Results of the PANOPTIMOX-PRODIGE 35 Trial

Laetitia Dahan et al. J Clin Oncol. .

Abstract

Purpose: Metastatic pancreatic cancer (mPC) still harbors a dismal prognosis. Our previous trial (PRODIGE 4-ACCORD 11) demonstrated the superiority of 6-month chemotherapy with fluorouracil, leucovorin, irinotecan, and oxaliplatin (FOLFIRINOX) over gemcitabine for overall survival. The high limiting oxaliplatin-related neurotoxicity supports the evaluation of an oxaliplatin stop-and-go strategy and a sequential strategy in mPC.

Methods: In this phase II study, patients were randomly assigned to receive either 6 months of FOLFIRINOX (arm A), 4 months of FOLFIRINOX followed by leucovorin plus fluorouracil maintenance treatment for controlled patients (arm B), or a sequential treatment alternating gemcitabine and fluorouracil, leucovorin, and irinotecan every 2 months (arm C). The primary end point was progression-free survival at 6 months.

Results: Between January 2015 and November 2016, 276 patients (mean age: 63 years; range: 40-76 years) were enrolled (A: 91, B: 92, and C: 90). Grade 3 or 4 neurotoxicity occurred in 10.2% of patients in arm A and 19.8% in arm B. The median ratio of received dose/targeted dose of oxaliplatin was 83% in arm A and 92% in arm B. The 6-month progression-free survival was 47.1% in A, 42.9% in B, and 34.1% in C. The median overall survival was 10.1 months in arm A, 11.2 in arm B, and 7.3 in arm C. Median survival without deterioration in quality-of-life scores was higher in the maintenance arm (11.4 months) than in arms A and C (7.2 and 7.5 months, respectively).

Conclusion: Maintenance with leucovorin plus fluorouracil appears to be feasible and effective in patients with mPC controlled after 4 months of induction chemotherapy with FOLFIRINOX. Severe neurotoxicity was higher in the maintenance therapy arm, probably because of the higher cumulative dose of oxaliplatin.

Trial registration: ClinicalTrials.gov NCT02352337.

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Conflict of interest statement

Laetitia DahanHonoraria: Amgen, BMS, Servier, Oseus, Mylan Jean-Marc PhelipHonoraria: Merck Serono, Roche, Sanofi, Amgen, Lilly, Servier, BayerConsulting or Advisory Role: Roche, Merck Serono, Amgen, Servier, Bayer, SanofiResearch Funding: Roche, Merck SeronoTravel, Accommodations, Expenses: Roche, Merck Serono, Bayer, Servier, Sanofi, Amgen Jérôme DesrameExpert Testimony: RocheTravel, Accommodations, Expenses: Hospira Olivier BouchéConsulting or Advisory Role: Roche, Merck Serono, Bayer, MSD Oncology, Grünenthal Group, AstraZenecaSpeakers' Bureau: Pierre Fabre, Servier, Amgen, SanofiTravel, Accommodations, Expenses: Roche, Merck Serono, Servier David MalkaHonoraria: Roche, Amgen, Bayer, Merck Serono, Servier, Sanofi, HalioDx, Pierre Fabre, Viatris, Bristol Myers Squibb, MSD Oncology, LEO PharmaConsulting or Advisory Role: Roche, Sanofi, Merck Serono, MSD, Servier, Bayer, Incyte, Amgen, HalioDx, Agios, Bristol Myers SquibTravel, Accommodations, Expenses: Roche, Bayer, Sanofi, Merck Serono, Amgen, Servier Thomas AparicioHonoraria: Roche, Amgen, Servier, AstraZenecaConsulting or Advisory Role: MSD Oncology, Bioven, ServierTravel, Accommodations, Expenses: Roche Yves RinaldiHonoraria: Viatris, Amgen Astellas BioPharma Anthony TurpinHonoraria: Amgen, Merck Serono, ServierConsulting or Advisory Role: AmgenTravel, Accommodations, Expenses: AstraZeneca, Pfizer, Sanofi, Merck Anne-Laure BignonHonoraria: IpsenTravel, Accommodations, Expenses: Ipsen Jean-Baptiste BachetHonoraria: Amgen, Bayer, Merck Serono, Sanofi, Roche, Servier, AstraZeneca, Pierre FabreConsulting or Advisory Role: Amgen, Bayer, Merck Serono, Servier, AstraZeneca, Pierre FabreTravel, Accommodations, Expenses: Merck Serono, Amgen, Roche, Servier Jean-François SeitzHonoraria: Lilly, Merck Serono, SanofiConsulting or Advisory Role: Servier, Pierre FabreTravel, Accommodations, Expenses: Ipsen Come LepageHonoraria: Amgen, Bayer, Ipsen, Pierre FabreConsulting or Advisory Role: Advanced Accelerator Applications, NovartisTravel, Accommodations, Expenses: Novartis, Bayer, Sanofi/Aventis, Merck Serono, Ipsen Eric FrançoisHonoraria: Amgen, Servier, Novartis, Merck Sharp & DohmeConsulting or Advisory Role: Roche, Pierre FabreTravel, Accommodations, Expenses: Roche, ServierNo other potential conflicts of interest were reported.

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