Evidence map›Paper›PMID 25269598›Full record

Trial reportTrials2014

Update of the Preventive Antibiotics in Stroke Study (PASS): statistical analysis plan.

Willeke F Westendorp, Jan-Dirk Vermeij, Diederik W J Dippel, Marcel G W Dijkgraaf, Tom van der Poll, Jan M Prins, Frederique H Vermeij, Yvo B W E M Roos, Matthijs C Brouwer, Aeilko H Zwinderman and 2 more

Open access · goldAbstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

1 citing paper in PubMed, 6 citations in OpenAlex.

  1. Trial
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 3 institutions in 1 country.

Willeke F Westendorp
Jan-Dirk Vermeij
Diederik W J Dippel
Marcel G W Dijkgraaf
Tom van der Poll
Jan M Prins
Frederique H Vermeij
Yvo B W E M Roos
Matthijs C Brouwer
Aeilko H Zwinderman
Diederik van de BeekDepartment of Neurology, Academic Medical Center, P,O, Box 22660, 1100 DD Amsterdam, the Netherlands. d.vandebeek@amc.uva.nl.
Paul J Nederkoorn
Academic Medical Center · NLErasmus MC · NLSint Franciscus Gasthuis · NL

Funding

European Research Council 281156
6 · The paper itself

Abstract

backgroundInfections occur in 30% of stroke patients and are associated with unfavorable outcomes. Preventive antibiotic therapy lowers the infection rate after stroke, but the effect of preventive antibiotic treatment on functional outcome in patients with stroke is unknown. The PASS is a multicenter, prospective, phase three, randomized, open-label, blinded end-point (PROBE) trial of preventive antibiotic therapy in acute stroke. Patients are randomly assigned to either ceftriaxone at a dose of 2 g, given every 24 h intravenously for 4 days, in addition to standard stroke-unit care, or standard stroke-unit care without preventive antibiotic therapy. The aim of this study is to assess whether preventive antibiotic treatment improves functional outcome at 3 months by preventing infections. This paper presents in detail the statistical analysis plan (SAP) of the Preventive Antibiotics in Stroke Study (PASS) and was submitted while the investigators were still blinded for all outcomes.

resultsThe primary outcome is the score on the modified Rankin Scale (mRS), assessed by ordinal logistic regression analysis according to a proportional odds model. Secondary analysis of the primary outcome is the score on the mRS dichotomized as a favorable outcome (mRS 0 to 2) versus unfavorable outcome (mRS 3 to 6). Secondary outcome measures are death rate at discharge and 3 months, infection rate during hospital admission, length of hospital admission, volume of post-stroke care, use of antibiotics during hospital stay, quality-adjusted life years and costs. Complications of treatment, serious adverse events (SAEs) and suspected unexpected serious adverse reactions (SUSARs) are reported as safety outcomes.

conclusionsThe data from PASS will establish whether preventive antibiotic therapy in acute stroke improves functional outcome by preventing infection and will be analyzed according to this pre-specified SAP.

trial registrationCurrent controlled trials; ISRCTN66140176. Date of registration: 6 April 2010.

Indexed as

Anti-Bacterial AgentsBacterial InfectionsCeftriaxoneClinical ProtocolsCost-Benefit AnalysisData Interpretation, StatisticalDisability EvaluationDrug Administration ScheduleDrug CostsHospital MortalityHumansLength of StayLogistic ModelsNetherlandsOdds RatioProspective StudiesAnti-Bacterial AgentsCeftriaxone

Identifiers

PMID25269598
PMCPMC4195873
OpenAlexW2161531449

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.