Evidence map›Paper›PMID 23398164›Full record

SynthesisAlcoholism, clinical and experimental research2013

The declining efficacy of naltrexone pharmacotherapy for alcohol use disorders over time: a multivariate meta-analysis.

A C Del Re, Natalya Maisel, Janet Blodgett, John Finney

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Alcoholism, clinical and experimental research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 5 pooled it
1.8field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 5 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Study Characteristics Influence the Efficacy of Substance Abuse Treatments: A Meta-analysis of Medications for Smoking Cessation.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
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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

4 authors at 2 institutions in 1 country.

A C Del ReHSR&D Center for Health Care Evaluation, VA Palo Alto Health Care System, Stanford University Medical School, Menlo Park, CA 94025, USA. acdelre@stanford.edu
Natalya Maisel
Janet Blodgett
John Finney
Stanford University · USVA Palo Alto Health Care System · US

Funding

META-ANALYSIS OF ALCOHOLISM TREATMENT OUTCOME RESEARCHR01AA008689 · NIAAA · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI FINNEY, JOHN W. · 1990 to 2011
$766k
NIAAA NIH HHS AA008689NIAAA NIH HHS R01 AA008689
6 · The paper itself

Abstract

backgroundOral naltrexone is an FDA-approved medication for treating alcohol use disorders. Although its efficacy has been supported in multiple clinical trials, an earlier review found that its effect sizes (ESs) on relapse to heavy drinking and, to a lesser extent, percent days drinking were smaller in more recent trials and in multicenter than in single-site studies. We examined whether these findings held when studies from 2004 to 2009 were taken into account, and whether single-site versus multicenter trials, the use of placebo run-in periods, and placebo group improvement accounted for variation in naltrexone effects and decreasing effects over time.

methodsA multivariate meta-analysis of naltrexone pharmacotherapy trials for alcohol use disorders was conducted. All analyses simultaneously modeled ESs on outcomes of percent days abstinent and relapse to heavy drinking. Potential moderators of medication effects that were examined included publication year, multicenter design (vs. single site), placebo run-in period, and placebo group improvement.

resultsStatistically significant between-group differences on percent days abstinent (the inverse of percent days drinking) and relapse to heavy drinking favored naltrexone over placebo. Year of publication was a significant moderator for both outcomes, with more recent trials having smaller ESs. Neither multi- versus single-site study, the interaction between multi- versus single-site study and year of publication, nor placebo run-in period was a significant moderator of naltrexone effects. Although placebo group improvement was modestly associated with smaller between-group naltrexone versus placebo ESs, only 21 studies provided usable information on placebo group improvement. Within those studies, there was no relationship between naltrexone ESs and time, so placebo group improvement was not examined as a moderator of that relationship.

conclusionsNaltrexone ESs have attenuated over time. Moderators that explain why effects have been decreasing remain to be determined.

Indexed as

AlcoholismHumansMultivariate AnalysisNaltrexoneNarcotic AntagonistsTime FactorsTreatment OutcomeNaltrexoneNarcotic Antagonists

Identifiers

PMID23398164
PMCPMC3657572
OpenAlexW2101342091

What OpenQuestion holds

Textmetadata
LicenceTDM
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.