Evidence map›Paper›PMID 32394126›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2020

Preoperative Chemotherapy for Pancreatic Cancer Improves Survival and R0 Rate Even in Early Stage I.

Eduardo A Vega, Onur C Kutlu, Omid Salehi, Daria James, Sylvia V Alarcon, Beth Herrick, Sandeep Krishnan, Olga Kozyreva, Claudius Conrad

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Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Eduardo A VegaDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Onur C KutluDepartment of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA.
Omid SalehiDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Daria JamesDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Sylvia V AlarconDepartment of Medical Oncology & Hematology, St. Elizabeth's Medical Center and Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard School of Medicine, Boston, MA, USA.
Beth HerrickDepartment of Radiation Oncology, St. Elizabeth's Medical Center, University of Massachusetts Medical School, Boston, MA, USA.
Sandeep KrishnanDepartment of Gastroenterology, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA.
Olga KozyrevaDepartment of Medical Oncology & Hematology, St. Elizabeth's Medical Center and Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard School of Medicine, Boston, MA, USA.
Claudius ConradDepartment of Surgery, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, MA, USA. claudius.conrad@steward.org.
St. Elizabeth's Medical Center · USDana-Farber Cancer Institute · USTufts University · USUniversity of Massachusetts Chan Medical School · USUniversity of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile preoperative chemotherapy for patients with stage II-III pancreatic adenocarcinoma (PDAC) is frequently practiced, its impact on very early PDAC (stage I) remains unclear today. MATERIAL AND

methodsPatients undergoing pancreatectomy for PDAC between 2010 and 2016 were identified in the National Cancer Database. Early-stage patients (IA-IB) with complete oncologic and clinical information and more than 30-day survival were included. The effect of preoperative chemotherapy on margin status was assessed with binary logistic regression. Following correction for confounders, the effect of therapy sequencing was assessed via comparison of preoperative, postoperative, perioperative (pre- and post-operative) chemotherapy, and surgery only using Cox regression.

resultsOf 4785 patients, 688 (14.4%) were stage IA, and 4197 (87.7%) IB. The rate of preoperative chemotherapy was only 8.8%. Rate of margin positivity was lower for preoperative chemotherapy (12.3% vs 19.7%). After correcting for confounders, the risk of a positive margin was lower in preoperative chemotherapy (odd ratio [OR] 0.703, p = 0.042). Cox regression showed a significant overall survival advantage for preoperative (hazard ratio [HR] 0.784, p = 0.002), postoperative (HR 0.618, p < 0.001), and perioperative (HR 0.601, p < 0.001) chemotherapy compared with surgery alone. There was no significant difference in survival between chemotherapy groups but a trend towards optimal survival for preoperative chemotherapy.

conclusionDespite preoperative chemotherapy vs surgery alone resulting in improved R0 rates and overall survival even in stage I PDAC, it is rarely practiced. The results presented here suggest that preoperative chemotherapy should be strongly considered in all patients with resectable PDAC, including very early PDAC.

Indexed as

AdenocarcinomaCarcinoma, Pancreatic DuctalPancreatic NeoplasmsHumansNeoadjuvant TherapyPancreatectomyRetrospective StudiesSurvival RateNeoadjuvant chemotherapyPancreatectomyPancreatic adenocarcinomaPancreaticoduodenectomy

Identifiers

PMID32394126
OpenAlexW3025088488

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.