Evidence map›Paper›PMID 30390706›Full record

Trial reportTrials2018

Statistical analysis plan of a randomized controlled trial to compare a restrictive strategy to usual care for the effectiveness of cholecystectomy (SECURE trial).

Sarah Z Wennmacker, Aafke H van Dijk, Joost P H Drenth, Sandra C Donkervoort, Djamila Boerma, Gert P Westert, Cornelis J H M van Laarhoven, Marja A Boermeester, Marcel G W Dijkgraaf, Philip R de Reuver

Abstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
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

10 authors.

Sarah Z WennmackerDepartment of Surgery, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Aafke H van DijkDepartment of Surgery, Academic Medical Centre, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
Joost P H DrenthGastroenterology and Hepatology, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Sandra C DonkervoortDepartment of Surgery, Onze Lieve Vrouwe Gasthuis, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands.
Djamila BoermaDepartment of Surgery, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands.
Gert P WestertDepartment of IQ healthcare, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Cornelis J H M van LaarhovenDepartment of Surgery, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
Marja A BoermeesterDepartment of Surgery, Academic Medical Centre, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
Marcel G W DijkgraafClinical Research Unit, Academic Medical Centre, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
Philip R de ReuverDepartment of Surgery, Radboud University Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands. philip.dereuver@radboudumc.nl.ORCID http://orcid.org/0000-0002-8566-4222

Funding

ZonMw 837002004
6 · The paper itself

Abstract

backgroundCholecystectomy is the preferred treatment for symptomatic cholecystolithiasis. However, persistent pain after cholecystectomy for symptomatic cholecystolithiasis is reported in up to 40% of patients. The aim of the SECURE trial is to compare the effectiveness of usual care with a restrictive strategy using a standardized work-up with stepwise selection for cholecystectomy in patients with gallstones and abdominal complaints. The SECURE trial is designed as a multicenter, randomized, parallel-arm, non-inferiority trial in patients with abdominal symptoms and ultrasound-proven gallstones or sludge. Randomization was performed to either usual care (standard practice, according to the physician's knowledge and experience, and physician's and patient's preference) or a restrictive standardized strategy: treated with interval evaluation and stepwise selection for laparoscopic cholecystectomy based on fulfilment of pre-specified criteria. This article presents in detail the statistical analysis plan (SAP) of this trial and was submitted before outcomes were available to the investigators.

resultsThe primary end point of this trial is defined as the proportion of patients being pain-free at 12 months' follow-up. Pain will be assessed with the Izbicki Pain Score. Secondary endpoints will be the proportion of patients with complications due to gallstones or cholecystectomy, quality of life, the association between the patients' symptoms and treatment, work performance, and cost-effectiveness. DISCUSSION: The data from the SECURE trial will provide evidence whether or not a restrictive strategy in patients with symptomatic cholecystolithiasis is associated with similar patient reported outcomes and a reduction in the number of cholecystectomies compared to usual care. The data from this trial will be analyzed according to this pre-specified SAP.

trial registrationThe Netherlands National Trial Register NTR4022 . Registered on 5 June 2013.

Indexed as

Clinical ProtocolsData Interpretation, StatisticalCholecystectomyCost-Benefit AnalysisFemaleHealth StatusHumansIntention to Treat AnalysisMalePatient SatisfactionAbdominal painCholecystectomyCost-effectivenessSymptomatic gallstones

Identifiers

PMID30390706
PMCPMC6215646

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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.