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NEOSCOPE: a randomised phase II study of induction chemotherapy followed by either oxaliplatin/capecitabine (OXCAP) or carboplatin/paclitaxel (CarPac) based chemoradiation (CRT) as pre-operative regimen for resectable oesophageal adenocarcinoma.

Mukherjee, Somnath, Hurt, Chris, Gwynne, Sarah, Bateman, Andrew, Gollins, Simon, Radhakrishna, Ganesh, Canham, Jo, Ray, Ruby, Grabsch, Heike I, Sharma, Ricky A., Maggs, Rhydian, Hawkins, Maria A, Sebag-Montefiore, David, Maughan, Tim, Griffiths, Gareth and Crosby, Tom David Lewis 2016. NEOSCOPE: a randomised phase II study of induction chemotherapy followed by either oxaliplatin/capecitabine (OXCAP) or carboplatin/paclitaxel (CarPac) based chemoradiation (CRT) as pre-operative regimen for resectable oesophageal adenocarcinoma. Journal of Clinical Oncology 34 (4_supp) , p. 3. 10.1200/jco.2016.34.4_suppl.3

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Abstract

Background: NEOSCOPE compared toxicity and efficacy of 2 pre-op CRT regimens. Methods: Eligibility: Resectable ACA of the oesophagus/GOJ ≥ T3 and/or ≥ N1. Randomisation: 1:1 to OXCAP-CRT (oxaliplatin 85 mg/m2 Day 1,15,29; capecitabine 625 mg/m2 bd on days of RT) or CarPac-CRT (Carboplatin AUC2; paclitaxel 50 mg/m2 Day 1,8,15,22,29); concurrent RT: 45Gy/25 fractions/5 weeks. Both arms received induction chemo: 2 cycles of OXCAP (oxaliplatin 130 mg/m2 D1, Cape 625 mg/m2D1-21, q 3wk). Surgery: 6-8 weeks after naCRT. Detailed RT and pathology quality assurance was built into the protocol. Primary end-point: pathological complete response (pCR). Secondary: toxicity, surgical morbidity/mortality, R1 rate, OS. Statistics: A pCR of 15% would not warrant further investigation but a pCR of 35% would. 76 patients (38/arm) gave 90% power and one-sided type I error of 10% meaning that either arm having ≥10 pCR out of first 38 patients would be considered for Phase III. 85 patients to be recruited (allows 10% loss to follow up). Results: 85 patients were randomised between Oct 2013 and Feb 2015 from 17 UK centres. Patient characteristics: median age 65 yrs, Male (81%), WHO PS 0 (85%). Tumour characteristics: T3 (86%), N1 (48%), lower third/GOJ (90%), median tumour length 5.8cm. CTCAE grade 3/4 toxicity rate during CRT was OXCAP-CRT 42.1%, CarPac-CRT 52.4% (p=0.358). Protocol dose RT OXCAP-CRT 90.5%, CarPac-CRT 93%. Conclusion:Both regimens were well tolerated. CarPac-CRT passed the criteria for taking forward to a phase III study but OXCAP-RT did not. Funding: Cancer Research UK (C44694/A14614), ClinicalTrials.gov: NCT01843829, coordinated by Wales Cancer Trials Unit. Clinical trial information: NCT01843829.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Publisher: American Society of Clinical Oncology
ISSN: 0732-183X
Funders: CRUK
Last Modified: 19 Jun 2019 13:04
URI: http://orca.cf.ac.uk/id/eprint/105922

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