Evidence map›Paper›PMID 27495988›Full record

ArticleCancer2016

Next-generation sequencing survey of biliary tract cancer reveals the association between tumor somatic variants and chemotherapy resistance.

Daniel H Ahn, Milind Javle, Chul W Ahn, Apurva Jain, Sameh Mikhail, Anne M Noonan, Kristen Ciombor, Christina Wu, Rachna T Shroff, James L Chen and 1 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. The p53 Isoforms as Potential Biomarkers in Different Cancer Entities.International journal of molecular sciences · 2026
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  10. Current status of liver transplantation for cholangiocarcinoma.World journal of gastrointestinal surgery · 2022
    Review
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  15. Review
  16. Overview of current targeted therapy in gallbladder cancer.Signal transduction and targeted therapy · 2020
    Review
  17. Article
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  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 1 country.

Daniel H AhnDivision of Medical Oncology, The Ohio State University Medical Center, Columbus, OH, USA.
Milind JavleDivision of Cancer Medicine, MD Anderson Cancer Center, Houston, Texas, USA.
Chul W AhnDepartment of Clinical Sciences, UT Southwestern Medical Center, Dallas, Texas, USA.
Apurva JainDivision of Cancer Medicine, MD Anderson Cancer Center, Houston, Texas, USA.
Sameh MikhailDivision of Medical Oncology, The Ohio State University Medical Center, Columbus, OH, USA.
Anne M NoonanDivision of Medical Oncology, The Ohio State University Medical Center, Columbus, OH, USA.
Kristen Ciombor
Christina WuDivision of Medical Oncology, The Ohio State University Medical Center, Columbus, OH, USA.
Rachna T ShroffDivision of Cancer Medicine, MD Anderson Cancer Center, Houston, Texas, USA.
James L Chen *Division of Medical Oncology, The Ohio State University Medical Center, Columbus, OH, USA.
Tanios Bekaii-Saab *Mayo Clinic, 5777 E. Mayo Blvd, Phoenix, AZ, USA.
Mayo Clinic Hospital · USThe Ohio State University · USThe Ohio State University Wexner Medical Center · USThe University of Texas MD Anderson Cancer Center · USThe University of Texas Southwestern Medical Center · US

Funding

Women's Cancer ProgramP30CA015083 · NCI · MAYO CLINIC ROCHESTER · PI Felicity Enders · 1985 to 2026
$151.3M
Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Tasleem J Padamsee · 1985 to 2026
$132.3M
NCI NIH HHS P30 CA015083NCI NIH HHS P30 CA016058
6 · The paper itself

Abstract

backgroundBiliary tract cancers (BTCs) are uncommon and are associated with a dismal prognosis. Combinations of gemcitabine and platinum chemotherapy (gemcitabine and platinum-based therapy [GP]) form the standard approach for treating advanced BTC. To characterize the spectrum of mutations and to identify potential biomarkers for a GP response in BTC, this study evaluated the genomic landscape and assessed whether mutations affecting DNA repair were associated with GP resistance.

methodsPretreatment, formalin-fixed, paraffin-embedded samples from 183 BTC patients treated with GP were analyzed. Cox regression models were used to determine the association between mutations, progression-free survival (PFS), and overall survival (OS).

resultsWhen genes with an incidence > 10% were considered, no individual gene was independently predictive of a GP response. In patients with unresectable BTC who received GP as their first-line therapy, the joint status of cyclin-dependent kinase inhibitor 2A (CDKN2A), tumor protein 53 (TP53), and AT-rich interaction domain 1A (ARID1A) was associated with PFS (P = .0004) and OS (P ≤ .0001). Patients with mutations in CDKN2A and TP53 were identified as a poor-prognosis cohort with a median PFS of 2.63 months and a median OS of 5.22 months. Patients with mutant ARID1A, regardless of the single-mutation status of TP53 or CDKN2A, had similar outcomes. A patient who exhibited mutations in all 3 genes had a median PFS of 20.37 months, and OS was not reached.

conclusionsIn the largest exploratory analysis of this kind for BTC, 3 prevalent, mutually exclusive mutations represent distinct patient cohorts. These mutations are prognostic and may represent a predictive biomarker for a GP response. Prospective studies to validate these findings are needed, and they should include the incorporation of therapies that exploit the genomic instability observed with these mutations in BTC. Cancer 2016;122:3657-66. © 2016 American Cancer Society.

Indexed as

AdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBiliary Tract NeoplasmsCyclin-Dependent KinasesDeoxycytidineDisease-Free SurvivalDrug Resistance, NeoplasmFemaleGemcitabineHumansMaleMiddle AgedMutationOrganoplatinum CompoundsCyclin-Dependent KinasesDeoxycytidineGemcitabineOrganoplatinum Compoundsbiliary tract cancergemcitabine and platinum-based therapy responsenext-generation sequencingtumor somatic variants

Identifiers

PMID27495988
PMCPMC5222890
OpenAlexW2502496642

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.