Evidence map›Paper›PMID 29872151›Full record

ArticleBritish journal of cancer2018

Prognostic role of carcinoembryonic antigen and carbohydrate antigen 19-9 in metastatic colorectal cancer: a BRAF-mutant subset with high CA 19-9 level and poor outcome.

Maria Thomsen, Eva Skovlund, Halfdan Sorbye, Nils Bolstad, Kjell Johannes Nustad, Bengt Glimelius, Per Pfeiffer, Elin H Kure, Julia S Johansen, Kjell Magne Tveit and 2 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.2field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 68 citations in OpenAlex.

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  3. Clinical and prognostic implications of RAS mutations in metastatic colorectal cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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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 7 institutions in 3 countries.

Maria ThomsenDepartment of Oncology, Oslo University Hospital, Oslo, Norway.
Eva SkovlundDepartment of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.
Halfdan SorbyeDepartment of Oncology, Haukeland University Hospital and Department of Clinical Science, University of Bergen, Bergen, Norway.
Nils BolstadDepartment of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.
Kjell Johannes NustadDepartment of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.
Bengt GlimeliusDepartment of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
Per PfeifferDepartment of Oncology, Odense University Hospital, Odense, Denmark.
Elin H KureDepartment of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.
Julia S JohansenDepartments of Oncology and Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
Kjell Magne TveitDepartment of Oncology, Oslo University Hospital, Oslo, Norway.
Thoralf ChristoffersenDepartment of Pharmacology, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
Tormod Kyrre GurenDepartment of Oncology, Oslo University Hospital, Oslo, Norway. uxtour@ous-hf.no.
Oslo University Hospital · NOUniversity of Oslo · NOGentofte Hospital · DKNorwegian University of Science and Technology · NOUniversity of Bergen · NOUniversity of Southern Denmark · DKUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMutation status of RAS and BRAF, as well as serum levels of carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9), are biomarkers used in clinical management of patients with gastrointestinal cancers. This study aimed to examine the prognostic role of these biomarkers in a patient population that started first-line chemotherapy for unresectable metastatic colorectal cancer (mCRC) in the NORDIC-VII study.

methodsCEA and CA 19-9 were measured in serum samples from 545 patients obtained before the start of chemotherapy. Four hundred and ninety-four patients had detectable levels of carbohydrate antigen 19-9 (CA 19-9). RAS (exons 2-4) and BRAF (V600E) mutation status were available from 440 patients. Overall survival (OS) was estimated in patient groups defined by serum CEA or CA 19-9 levels using cut-off values of 5 µg/L and 35 kU/L, respectively, in the total population and in subgroups according to RAS and BRAF mutation status.

resultsFor both CEA and CA 19-9, elevated serum levels were associated with reduced OS in adjusted analyses which included RAS and BRAF mutation status, baseline World Health Organization performance status, and levels of alkaline phosphatase and C-reactive protein. The negative prognostic information provided by an elevated CA 19-9 level was particularly marked in patients with BRAF mutation (hazard ratio = 4.35, interaction P = 0.003, in an adjusted model for OS).

conclusionsHigh baseline serum concentrations of CEA and CA 19-9 provide independent information of impaired prognosis in mCRC. In patients with BRAF-mutant tumours, elevated serum CA 19-9 may identify a subgroup with highly aggressive disease and could contribute to improving therapeutic decisions.

Indexed as

MutationAdultAgedCA-19-9 AntigenCarcinoembryonic AntigenColorectal NeoplasmsFemaleHumansMaleMiddle AgedNeoplasm MetastasisPrognosisProto-Oncogene Proteins B-rafras ProteinsSurvival RateYoung AdultBRAF protein, humanCA-19-9 AntigenCarcinoembryonic AntigenProto-Oncogene Proteins B-rafras Proteins

Identifiers

PMID29872151
PMCPMC6008450
OpenAlexW2805908801

What OpenQuestion holds

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LicenceCC BY
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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.