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Poster Display session 2

1702 - Randomized phase II trial of CAPOX with planned oxaliplatin stop-and-go strategy as adjuvant chemotherapy after curative resection of colon cancer (CCOG-1302 study)

Date

29 Sep 2019

Session

Poster Display session 2

Topics

Tumour Site

Colon and Rectal Cancer

Presenters

Hiroyuki Yokoyama

Citation

Annals of Oncology (2019) 30 (suppl_5): v198-v252. 10.1093/annonc/mdz246

Authors

H. Yokoyama1, G. Nakayama2, K. Ishigure3, N. Hayashi4, K. Tanaka5, M. Tsutsuyama2, N. Hattori2, S. Yamada2, Y. Kodera2

Author affiliations

  • 1 Gastroenterological Surgery, Komaki City Hospital, 4858520 - Komaki/JP
  • 2 Gastroenterological Surgery, Nagoya University, Graduate School of Medicine, 466-8550 - Nagoya/JP
  • 3 Department Of Surgery, Konan Kosei Hospital, 4838704 - Konan/JP
  • 4 Surgery, Tosei General Hospital, 489-0065 - Seto/JP
  • 5 Surgery, Yokkaichi Municipal Hospital, 5108567 - Yokkaichi/JP

Resources

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Abstract 1702

Background

The aim of this study was to evaluate the efficacy and safety of CAPOX with planned oxaliplatin stop-and-go strategy compared to continuous use of oxaliplatin as an adjuvant setting for colon cancer.

Methods

Patients with curative resection of colon cancerwere randomly assigned to receive eitherCAPOX with continuous use of oxaliplatin (8 cycles of CAPOX; continuous arm) or CAPOX intermittentuse of oxaliplatin (2 cycles of CAPOX – 4 cycles of capecitabine – 2 cycles of CAPOX; intermittentarm).The primary endpoints were frequency of peripheral sensory neuropathy (PSN) at 1-year after surgery and disease-free survival rate at 3-year after surgery. The secondary end points included overall survival (OS), compliance and safety.

Results

A total of 200 patients were enrolled. The intent-to-treat and safety population comprised 100 and 99 patients in the continuous arm,and 100 and 98 patients in the intermittentarm. Compliance: The overall treatment completion rate and relative dose intensity of oxaliplatin were 64% and 71% in the continuous arm vs.92% and 95% in the intermittentarm(p = 0.21 and 0.12, respectively). Efficacy: The 3-year DFS was 81.6% in the continuous arm vs.82.4% in the intermittentarm(HR, 0.82; 95% CI, 0.48-1.18). Safety: The incidence of PSN (>grade 2) was 33%in the continuous arm vs.15% in the intermittentarm (p < 0.001). The frequencies ofPSF lasting for 1-year and 3-year were 61% and 30% vs. 21% and 6%, respectively.

Conclusions

CAPOX withplanned oxaliplatin stop-and-go strategy could be equally effectiveas an adjuvant setting for colon cancer, and substantially reduce long-term PSN and potential improve patient quality of life.

Clinical trial identification

000012535 (09/December/2013).

Editorial acknowledgement

Legal entity responsible for the study

Yasuhiro Kodera (Chubu Clinical Oncology Group, Japan).

Funding

Chubu Clinical Oncology Group.

Disclosure

All authors have declared no conflicts of interest.

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