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Poster Display session 2

913 - Phase III, international, multicenter, randomized, open-label trial of adjuvant nab-paclitaxel plus gemcitabine (nab-P/G) vs gemcitabine (G) alone for surgically resected pancreatic adenocarcinoma (APACT): subgroup analyses

Date

29 Sep 2019

Session

Poster Display session 2

Topics

Tumour Site

Pancreatic Adenocarcinoma

Presenters

Margaret Tempero

Citation

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

Authors

M.A. Tempero1, M. Reni2, H. Riess3, E.M. O'Reilly4, S. Krishnamurthi5, P. Österlund6, I.C. Ales-Diaz7, M. Milella8, S. Siena9, J. Tabernero10, E. Van Cutsem11, P.A. Philip12, D. Goldstein13, J.D. Berlin14, M. Li15, S. Ferrara16, Y. Le Bruchec16, D. McGovern16, A. Biankin17

Author affiliations

  • 1 Division Of Hematology And Oncology, UCSF Helen Diller Family Comprehensive Cancer Center, 94115 - San Francisco/US
  • 2 Oncology, IRCCS Ospedale San Raffaele, 20132 - Milan/IT
  • 3 Oncology, Charité-Universitätsmedizin Berlin; Berlin; Germany; Freie Universität Berlin, Humboldt-Universität zu Berlin; Berlin; Germany; Berlin Institute of Health, 10117 - Berlin/DE
  • 4 Medicine, Memorial Sloan-Kettering Cancer Center, 10065 - New York/US
  • 5 Oncology, Case Western Reserve University, 44106 - Cleveland/US
  • 6 Oncology, Tampere University Hospital, 33521 - Tampere/FI
  • 7 Oncology, Servicio de Oncología Médica, Hospital Regional Universitario, 29010 - Malaga/ES
  • 8 Oncology, Università degli Studi di Verona, 37129 - Verona/IT
  • 9 Oncology, Grande Ospedale Metropolitano Niguarda; University of Milan, 20162 - Milan/IT
  • 10 Oncology, Vall d’Hebron University Hospital and Vall d’Hebron Institute of Oncology (VHIO), 08001 - Barcelona/ES
  • 11 Internal Medicine, University Hospitals Gasthuisberg/Leuven and KU Leuven, 3000 - Leuven/BE
  • 12 Med Affairs, Karmanos Cancer Institute, 48083 - Detroit/US
  • 13 Medical Oncology, Nelune Cancer Centre, Prince of Wales Hospital; University of New South Wales, 2031 - Randwick/AU
  • 14 Oncology, Vanderbilt-Ingram Cancer Center, 37232 - Nashville/US
  • 15 Statistics, Celgene Corporation, 07901 - Summit/US
  • 16 Scientific, Celgene Corporation, 07901 - Summit/US
  • 17 Oncology, University of Glasgow - Wolfson Wohl Cancer Research Centre - Institute of Cancer Sciences, G61 1QH - Bearsden/GB

Resources

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Abstract 913

Background

The primary APACT analysis showed no significant difference in disease-free survival (DFS) by blinded, independent radiologic review with nab-P/G vs G in patients (pts) with surgically resected pancreatic cancer (PC). However, investigator-assessed DFS (prespecified sensitivity analysis) and interim overall survival (OS; secondary endpoint) trended in favor of nab-P/G. Here, we report interim OS exploratory subanalyses.

Methods

Treatment-naive pts with histologically confirmed PC, macroscopic complete resection (R0/R1), CA 19-9 < 100 U/mL, and ECOG PS 0 or 1 were enrolled. Stratification factors included resection (R0/R1), lymph node (LN) status (positive [+]/negative), and geographic region. Pts were treated ≤ 12 weeks after surgery with nab-P 125 mg/m2 + G 1000 mg/m2 or G 1000 mg/m2 alone on days 1, 8, and 15 every 28 days for 6 cycles. For the primary endpoint assessment, independent reviewers received only baseline clinical data and scans. OS and safety were secondary endpoints. Ten prespecified subanalyses were performed.

Results

866 pts were randomized. Median age was 64 y (range, 34–86); most were male (56%) and white (78%) and had ECOG PS 0 (60%), LN+ status (72%), and R0 resection (76%). At the original data cutoff (31 December 2018; median follow-up, 38.5 mo), median OS (interim) trended in favor of nab-P/G vs G (40.5 vs 36.2 mo; HR 0.82; 95% CI, 0.680 - 0.996; nominal P = 0.045). Pts with poor characteristics had numerically longer median OS with nab-P/G vs G: 32.5 vs 27.0 mo in pts with R1 resection (n = 105 and 100) and 33.8 vs 28.9 mo in pts with LN+ status (n = 311 and 312). This is consistent with the median OS observed with nab-P/G vs G in pts whose tumors were < 1 mm to the closest margin (32.5 vs 29.7 mo; n = 114 and 112). Pts with both R1 resection and LN+ status had numerically longer median OS with nab-P/G vs G (30.7 vs 24.9 mo; n = 87 and 83).

Conclusions

Final OS data may clarify the role for adjuvant nab-P/G. Interim OS analyses suggest that continued investigation of adjuvant nab-P/G for pts with suboptimally resected PC or who may not tolerate FOLFIRINOX is warranted.

Clinical trial identification

NCT01964430.

Editorial acknowledgement

Rebecca Tweedell, MediTech Media, Ltd, funded by Celgene Corporation.

Legal entity responsible for the study

The authors.

Funding

Celgene Corporation.

Disclosure

M.A. Tempero: Advisory / Consultancy: AbbVie, Inc., Advance Medical, Inc., BioPharm Communications, Bristol-Myers Squibb, Celgene Corporation, Eisai, Inc., Ignyta, Inc., Pharmacyslics, LLC., Pharmcyte Biotech, Tocagen, Inc., Immunovia, CPRIT, AstraZeneca. M. Reni: Research grant / Funding (self): Celgene, Baxalta, Merck Serono, Helsinn; Non-remunerated activity/ies: Celgene, Baxalta, Merck Serono, Lilly, Pfizer, AstraZeneca, Novocure, Halozyme, Novartis, Shire. H. Riess: Speaker Bureau / Expert testimony: Celgene, Roche, Shire; Advisory / Consultancy: Celgene, Shire. E.M. O’Reilly: Honoraria (self), Research grant / Funding (institution): Celgene Corporation; Research grant / Funding (self): ActaBiologica, Agios, Array, AstraZeneca, Bayer, Beigene, BMS, Casi, Exelixis, Genentech, Halozyme, Incyte, Lilly, Mabvax, Novartis, OncoQuest, Polaris Puma, QED, Roche. S. Krishnamurthi: Non-remunerated activity/ies, Research Funding: Taiho, CytomX, Regeneron, Celgene, AbbVie. P. Österlund: Advisory / Consultancy: Amgen; Bayer; Celgene; Eisai; Lilly; Merck Serono; Roche; Sanofi; Servier/Shire; Speaker Bureau / Expert testimony: Prime Oncology; Research grant / Funding (institution): Amgen (Inst); Bristol-Myers Squibb (Inst); Celgene (Inst); Lilly (Inst); Merck Serono (Inst); MSD (Inst); Nordic Drugs (Inst); Roche (Inst); Sanofi (Inst); Servier (Inst); Travel / Accommodation / Expenses: AbbVie, Pierre Fabre. M. Milella: Advisory / Consultancy: Pfizer; Speaker Bureau / Expert testimony: AstraZeneca, EUSA Pharma. S. Siena: Advisory / Consultancy: Amgen, Bayer, BMS, CheckmAb, Celgene, Daiichi-Sankyo, Incyte, Merck, Novartis, Roche-Genentech, and Seattle Genetics. J. Tabernero: Advisory / Consultancy, Personal Financial Interest: Array Biopharma, AstraZeneca, Bayer, BeiGene, Boehringer Ingelheim, Chugai, Genentech, Inc., Genmab A/S, Halozyme, Imugene Limited, Inflection Biosciences Limited, Ipsen, Kura Oncology, Lilly, MSD, Menarini, Merck Serono, Merrimack, Merus, Molecular Part. E. Van Cutsem: Advisory / Consultancy: Bayer, Lilly, Roche, Servier, Bristol-Myers Squibb, Celgene, Merck Sharp & Dohme, Merck KGaA, Novartis, AstraZeneca; Research grant / Funding (self): Amgen, Bayer, Boehringer Ingelheim, Lilly, Novartis, Roche, Celgene, Ipsen, Merck, Merck KGaA, Servier, Bristol-Myers Squibb. P.A. Philip: Research grant / Funding (self): Celgene, Bayer, and Incyte; Speaker Bureau / Expert testimony: Roche, Sanofi, and Amgen; Advisory / Consultancy: Celgene Corporation. D. Goldstein: Advisory / Consultancy, Research grant / Funding (institution): Celgene Corporation, Pfizer. J.D. Berlin: Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Celgene Corporation. M. Li: Shareholder / Stockholder / Stock options, Full / Part-time employment: Celgene Corporation. S. Ferrara: Shareholder / Stockholder / Stock options, Full / Part-time employment: Celgene Corporation. Y. Le Bruchec: Shareholder / Stockholder / Stock options, Full / Part-time employment: Celgene Corporation. D. McGovern: Shareholder / Stockholder / Stock options, Full / Part-time employment: Celgene Corporation. A. Biankin: Leadership role: Gene Forward Inc; Research grant / Funding (self): Celgene, AstraZeneca; Licensing / Royalties: Agilent; Honoraria (self): Celgene, AstraZeneca, Tusk, Astar; Travel / Accommodation / Expenses: Celegene, AstraZeneca, Roche; Speaker Bureau / Expert testimony: Celgene, AstraZeneca, Tusk, Astar, Roche. All other authors have declared no conflicts of interest.

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