Evidence map›Paper›PMID 29362371›Full record

Trial reportScientific reports2018

KRAS and BRAF mutations in circulating tumour DNA from locally advanced rectal cancer.

Francesco Sclafani, Ian Chau, David Cunningham, Jens C Hahne, George Vlachogiannis, Zakaria Eltahir, Andrea Lampis, Chiara Braconi, Eleftheria Kalaitzaki, David Gonzalez De Castro and 12 more

Abstract readClinical Trial, Phase IIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 7 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Cell-free DNA and preoperative chemoradiotherapy for rectal cancer: a systematic review.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2019
    Pooled it
  7. Circulating Cell-Free DNA and Colorectal Cancer: A Systematic Review.International journal of molecular sciences · 2018
    Pooled it
  8. Article
  9. Article
  10. Article
  11. Using tumor habitat-derived radiomic analysis during pretreatmentCancer imaging : the official publication of the International Cancer Imaging Society · 2024
    Article
  12. Circulating tumour DNA in colorectal cancer management.The British journal of surgery · 2023
    Article
  13. Article
  14. Review
  15. Review
  16. Article
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  19. Article
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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

22 authors.

Francesco SclafaniThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Ian ChauThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.ORCID http://orcid.org/0000-0003-0286-8703
David CunninghamThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Jens C HahneThe Institute of Cancer Research, London and Surrey, United Kingdom.
George VlachogiannisThe Institute of Cancer Research, London and Surrey, United Kingdom.
Zakaria EltahirThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Andrea LampisThe Institute of Cancer Research, London and Surrey, United Kingdom.
Chiara BraconiThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Eleftheria KalaitzakiThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
David Gonzalez De CastroThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Andrew WotherspoonThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Jaume CapdevilaVall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain.
Bengt GlimeliusUniversity of Uppsala, Uppsala, Sweden.
Noelia TarazonaBiomedical Research Institute INCLIVA, University of Valencia, Valencia, Spain.
Ruwaida BegumThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Hazel LoteThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Sanna Hulkki WilsonThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Giulia MentrastiThe Institute of Cancer Research, London and Surrey, United Kingdom.
Gina BrownThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Diana TaitThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Jacqueline OatesThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom.
Nicola ValeriThe Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom. nicola.valeri@icr.ac.uk.

Funding

Cancer Research UK 18052Cancer Research UK CEA A18052
6 · The paper itself

Abstract

There are limited data on circulating, cell-free, tumour (ct)DNA analysis in locally advanced rectal cancer (LARC). Digital droplet (dd)PCR was used to investigate KRAS/BRAF mutations in ctDNA from baseline blood samples of 97 LARC patients who were treated with CAPOX followed by chemoradiotherapy, surgery and adjuvant CAPOX ± cetuximab in a randomised phase II trial. KRAS mutation in G12D, G12V or G13D was detected in the ctDNA of 43% and 35% of patients with tumours that were mutant and wild-type for these hotspot mutations, respectively, according to standard PCR-based analyses on tissue. The detection rate in the ctDNA of 10 patients with less common mutations was 50%. In 26 cases ctDNA analysis revealed KRAS mutations that were not previously found in tissue. Twenty-two of these (84.6%) were detected following repeat tissue testing by ddPCR. Overall, the ctDNA detection rate in the KRAS mutant population was 66%. Detection of KRAS mutation in ctDNA failed to predict prognosis or refine patient selection for cetuximab. While this study confirms the feasibility of ctDNA analysis in LARC and the high sensitivity of ddPCR, larger series are needed to better address the role of ctDNA as a prognostic or predictive tool in this setting.

Indexed as

MutationAgedAntineoplastic Combined Chemotherapy ProtocolsCapecitabineCetuximabChemoradiotherapy, AdjuvantCirculating Tumor DNADigestive System Surgical ProceduresFemaleHumansMaleMiddle AgedOrganoplatinum CompoundsOxaliplatinPrognosisProto-Oncogene Proteins B-rafBRAF protein, humanCapecitabineCetuximabCirculating Tumor DNAKRAS protein, humanOrganoplatinum CompoundsOxaliplatinProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)

Identifiers

PMID29362371
PMCPMC5780472

What OpenQuestion holds

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Registered trials

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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.