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Outcome of Patients Treated Within and Outside a Randomized Clinical Trial on Neoadjuvant Chemoradiotherapy Plus Surgery for Esophageal Cancer: Extrapolation of a Randomized Clinical Trial (CROSS).

Abstract：

BACKGROUND:Randomized clinical trials (RCTs) can provide a high level of evidence for medical decision making, but it is unclear if the results apply to patients treated outside such trials. OBJECTIVE:The aim of this study was to retrospectively compare outcomes of patients with esophageal cancer treated within and outside an RCT. METHODS:All patients receiving neoadjuvant chemoradiotherapy (nCRT) plus surgery for esophageal cancer between 2002 and 2008 (ChemoRadiotherapy for Esophageal cancer followed by Surgery Study [CROSS] cohort) who participated in multicenter, phase II-III trials were compared with patients who underwent the same treatment outside the trial between 2008 and 2013 (post-CROSS cohort). The differences between these cohorts were analyzed using t tests, while logistic regression models were used to evaluate adverse events. Overall and disease-free survival were calculated using the Kaplan-Meier method and Cox regression analyses. RESULTS:A total of 208 CROSS patients and 173 post-CROSS patients were included in this study. Patients from the post-CROSS cohort were older, had more co morbidities, and had poorer performance status. Clinical N stage, but not cT stage, was worse in the post-CROSS cohort. There were no statistically significant differences in adverse events (pulmonary, cardiac, or anastomotic complications) or survival between the comparison cohorts. CONCLUSION:The outcomes of patients treated with nCRT plus esophagectomy for cancer have a high external consistency and can be extrapolated to the daily practice of physicians involved in the treatment and care of esophageal cancer patients.

journal_name

Ann Surg Oncol

journal_title

Annals of surgical oncology

authors

Toxopeus E,van der Schaaf M,van Lanschot J,Lagergren J,Lagergren P,van der Gaast A,Wijnhoven B

doi

10.1245/s10434-018-6554-y

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

2441-2448

issue

eissn

1068-9265

issn

1534-4681

pii

10.1245/s10434-018-6554-y

journal_volume

pub_type

杂志文章,多中心研究,随机对照试验

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Outcome of Patients Treated Within and Outside a Randomized Clinical Trial on Neoadjuvant Chemoradiotherapy Plus Surgery for Esophageal Cancer: Extrapolation of a Randomized Clinical Trial (CROSS).