Evidence map›Paper›PMID 26385808›Full record

Trial reportEuropean radiology2016

Increased tumour ADC value during chemotherapy predicts improved survival in unresectable pancreatic cancer.

Hideyuki Nishiofuku, Toshihiro Tanaka, Nagaaki Marugami, Masayuki Sho, Takahiro Akahori, Yoshiyuki Nakajima, Kimihiko Kichikawa

Abstract readClinical Trial
In one paragraph

Trial report in European radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–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

23 citing papers in PubMed.

  1. Review
  2. Article
  3. Toward diffusion MRI in the diagnosis and treatment of pancreatic cancer.Medical oncology (Northwood, London, England) · 2025
    Review
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  13. Dinaciclib prolongs survival in theAmerican journal of translational research · 2020
    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

7 authors.

Hideyuki NishiofukuDepartment of Radiology and IVR Center, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan. hmn@naramed-u.ac.jp.
Toshihiro TanakaDepartment of Radiology and IVR Center, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.
Nagaaki MarugamiDepartment of Endoscopy and Ultrasound, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.
Masayuki ShoDepartment of Surgery, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.
Takahiro AkahoriDepartment of Surgery, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.
Yoshiyuki NakajimaDepartment of Surgery, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.
Kimihiko KichikawaDepartment of Radiology and IVR Center, Nara Medical University, Kashihara-city, Nara, 634-8522, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate whether changes to the apparent diffusion coefficient (ADC) of primary tumour in the early period after starting chemotherapy can predict progression-free survival (PFS) or overall survival (OS) in patients with unresectable pancreatic adenocarcinoma.

methodsSubjects comprised 43 patients with histologically confirmed unresectable pancreatic cancer treated with first-line chemotherapy. Minimum ADC values in primary tumour were measured using the selected area ADC (sADC), which excluded cystic and necrotic areas and vessels, and the whole tumour ADC (wADC), which included whole tumour components. Relative changes in ADC were calculated from baseline to 4 weeks after initiation of chemotherapy. Relationships between ADC and both PFS and OS were modelled by Cox proportional hazards regression.

resultsMedian PFS and OS were 6.1 and 11.0 months, respectively. In multivariate analysis, sADC change was the strongest predictor of PFS (hazard ratio (HR), 4.5; 95 % confidence interval (CI), 1.7-11.9; p = 0.002). Multivariate Cox regression analysis for OS revealed sADC change and CRP as independent predictive markers, with sADC change as the strongest predictive biomarker (HR, 6.7; 95 % CI, 2.7-16.6; p = 0.001).

conclusionRelative changes in sADC could provide a useful imaging biomarker to predict PFS and OS with chemotherapy for unresectable pancreatic adenocarcinoma. KEY POINTS: • Relative change in ADC value can predict survival in unresectable pancreatic cancer. • ADC change could determine a chemosensitivity of pancreatic cancer. • ADC values should be measured by excluding cystic, necrotic areas and vessels.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overAntineoplastic AgentsDiffusion Magnetic Resonance ImagingFemaleHumansImage Interpretation, Computer-AssistedKaplan-Meier EstimateMaleMiddle AgedMultivariate AnalysisPancreatic NeoplasmsPrognosisProportional Hazards ModelsAntineoplastic AgentsApparent diffusion coefficientBiomarkerMRIPancreatic cancerPrognostic factor

Identifiers

PMID26385808
PMCPMC4863905

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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.