Evidence map›Paper›PMID 24884940›Full record

ReviewBMC cancer2014

Prevalence of gastrointestinal stromal tumour (GIST) in the United Kingdom at different therapeutic lines: an epidemiologic model.

Justyna M Starczewska Amelio, Javier Cid Ruzafa, Kamal Desai, Spiros Tzivelekis, Dominic Muston, Javaria Mona Khalid, Philip Ashman, Andrew Maguire

Abstract readReview
In one paragraph

Review in BMC cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

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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

8 authors.

Justyna M Starczewska Amelio
Javier Cid RuzafaHealth Economics and Epidemiology, Evidera, Metro Building, 6th floor, No,1 Butterwick, London W6 8DL, UK. javier.cid@evidera.com.
Kamal Desai
Spiros Tzivelekis
Dominic Muston
Javaria Mona Khalid
Philip Ashman
Andrew Maguire

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prevalence of patients with gastrointestinal stromal tumourgst (GIST) who fail currently available treatments imatinib and sunitinib (third-line treatment-eligible GIST) is unknown, but is expected to be below an ultra-orphan disease threshold of 2/100,000 population used in England and Wales. Our study was designed to estimate the prevalence and absolute number of UK patients with unresectable/metastatic GIST at first-, second- and eventually third-line treatment.

methodsOur open population model estimates the probability that the prevalence of UK third-line treatment-eligible GIST patients will remain under the ultra-orphan disease threshold. Model parameters for incidence, proportion of unresectable/metastatic disease and survival estimates for GIST patients were obtained from a targeted literature review and a UK cancer register. The robustness of the results was checked through differing scenarios taking extreme values of the input parameters.

resultsThe base-case scenario estimated a prevalence of third-line treatment-eligible GIST of 1/100,000 and a prevalence count of 598 with a 99.9% likelihood of being below the ultra-orphan disease threshold. The extreme scenarios, one-way and probabilistic sensitivity analyses and threshold analysis confirmed the robustness of these results.

conclusionsThe prevalence of third-line treatment-eligible GIST is very low and highly likely below the ultra-orphan disease threshold.

Indexed as

Antineoplastic AgentsBenzamidesGastrointestinal Stromal TumorsHumansImatinib MesylateIncidenceIndolesModels, StatisticalPiperazinesPrevalenceProtein Kinase InhibitorsPyrimidinesPyrrolesRare DiseasesRegistriesSunitinibAntineoplastic AgentsBenzamidesImatinib MesylateIndolesPiperazinesProtein Kinase InhibitorsPyrimidinesPyrrolesSunitinib

Identifiers

PMID24884940
PMCPMC4039646

What OpenQuestion holds

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LicenceCC BY
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.