Evidence map›Paper›PMID 29807005›Full record

ArticleThe Annals of thoracic surgery2018

Postoperative Radiotherapy for Surgically Resected ypN2 Non-Small Cell Lung Cancer.

Whitney S Brandt, Wanpu Yan, Jonathan E Leeman, Kay See Tan, Bernard J Park, Prasad S Adusumilli, Matthew J Bott, Daniela Molena, James Isbell, Jamie Chaft and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Annals of thoracic surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

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  8. New developments in locally advanced nonsmall cell lung cancer.European respiratory review : an official journal of the European Respiratory Society · 2021
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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

12 authors at 1 institution in 1 country.

Whitney S BrandtDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Wanpu YanDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Jonathan E LeemanDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York.
Kay See TanDepartment of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York.
Bernard J ParkDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Prasad S AdusumilliDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Matthew J BottDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Daniela MolenaDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
James IsbellDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.
Jamie ChaftDepartment of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
Andreas RimnerDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York.
David R JonesDepartment of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: jonesd2@mskcc.org.
Memorial Sloan Kettering Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Elisa de Stanchina · 1985 to 2026
$347.4M
SURGICAL ONCOLOGY RESEARCH TRAINING PROGRAMT32CA009501 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Babak J Mehrara · 1985 to 2026
$7.7M
NCI NIH HHS P30 CA008748NCI NIH HHS T32 CA009501
6 · The paper itself

Abstract

backgroundThe role of postoperative radiotherapy (PORT) in patients with clinical stage III-N2 (cIII-N2) non-small cell lung cancer (NSCLC) treated with induction chemotherapy and surgical resection with persistent ypN2 disease is not well established.

methodsWe retrospectively reviewed a prospectively maintained database for patients with cIII-N2 NSCLC who underwent induction chemotherapy followed by resection (2004-2016). Exclusion criteria included induction radiotherapy, non-biopsy-confirmed cN2 disease, incomplete resection, ypN0/1, and nonanatomic resection. The primary outcome was locoregional recurrence (LR); secondary outcomes were disease-free survival (DFS), lung cancer-specific death (LCSD), and overall survival (OS). Associations between variables and outcomes were assessed using Fine and Gray competing risk regression for LR/LCSD and Cox proportional hazard models for survival.

resultsOf the 501 patients identified with cIII-N2 disease, 99 met the inclusion criteria. Median follow-up was 25 months (range, 3-137 months). Sixty-nine patients (70%) received PORT. Sixty (61%) developed a recurrence: 3 (5%) with an initial isolated LR and 57 (95%) with an initial distant recurrence. On multivariable analysis, PORT was not associated with LR (HR, 0.51 [95% CI, 0.22-1.21], p = 0.13). PORT was also not associated with DFS (p = 0.6) or LCSD (p = 0.1). PORT was associated with improved 3-year OS (55% [95% CI, 42%-71%]) versus the no-PORT group (50% [95% CI, 34%-74%]) (p = 0.04).

conclusionsPORT is not independently associated with decreased LR or improved DFS/LCSD in this patient population. Given that the predominant failure pattern was distant recurrence, future clinical trials should focus on adjuvant systemic therapies, which may decrease distant recurrences in ypN2 patients.

Indexed as

AgedCarcinoma, Non-Small-Cell LungCohort StudiesDatabases, FactualDisease-Free SurvivalFemaleHumansKaplan-Meier EstimateLung NeoplasmsMaleMiddle AgedNeoplasm InvasivenessNeoplasm Recurrence, LocalNeoplasm StagingPneumonectomyPrognosis

Identifiers

PMID29807005
PMCPMC6136648
OpenAlexW2803822844

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.