Evidence map›Paper›PMID 24633528›Full record

SynthesisBMJ open2014

Systematic review and meta-analysis of opioid antagonists for smoking cessation.

Sean P David, Isabella M Chu, Tim Lancaster, Lindsay F Stead, A Eden Evins, Judith J Prochaska

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 16% 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, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Nicotine and Opioids: a Call for Co-treatment as the Standard of Care.The journal of behavioral health services & research · 2020
    Review
  10. Article
  11. Article
  12. Indications for Opioid Antagonists.Current pain and headache reports · 2017
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
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

6 authors at 3 institutions in 2 countries.

Sean P DavidCenter for Education in Family & Community Medicine, Stanford University, Stanford, California, USA.
Isabella M Chu
Tim Lancaster
Lindsay F Stead
A Eden Evins
Judith J Prochaska
Stanford University · USUniversity of Oxford · GBMassachusetts General Hospital · US

Funding

Extended Treatment for Smoking CessationR01DA017441 · NIDA · STANFORD UNIVERSITY · PI DAVID, SEAN P. · 2003 to 2013
$5.2M
NIDA NIH HHS R01 DA017441
6 · The paper itself

Abstract

objectivesThis meta-analysis sought to evaluate the efficacy of opioid antagonists in promoting long-term smoking cessation. Post-treatment abstinence was examined as a secondary outcome and effects on withdrawal symptoms, craving and reduced consumption were also explored.

designThe search strategy for this meta-analysis included clinical trials (published and unpublished data) in the Cochrane Tobacco Addiction Group Specialized Register and MEDLINE.

participantsAdult smokers.

interventionsWe included randomised trials comparing opioid antagonists to placebo or an alternative therapy for smoking cessation and reported data on abstinence for a minimum of 6 months. PRIMARY AND SECONDARY OUTCOME MEASURES: Outcomes included smoking abstinence at long-term follow-up (primary); abstinence at end of treatment (secondary); and effects on withdrawal, craving and smoking consumption (exploratory).

results8 trials with a total of 1213 participants were included. Half the trials examined the benefit of adding naltrexone versus placebo to nicotine replacement therapy (NRT). There was no significant difference between naltrexone and placebo alone (relative risk (RR) 1.00; 95% CI 0.66 to 1.51) or as an adjunct to NRT (RR 0.95; 95% CI 0.70 to 1.30), with an overall pooled estimate of RR 0.97; 95% CI 0.76 to 1.24. Findings for naltrexone effects on withdrawal, craving and reduced smoking were equivocal.

conclusionsThe findings indicate no beneficial effect of naltrexone alone or as an adjunct to NRT on short-term or long-term smoking abstinence. While further trials may narrow the confidence limits, they are unlikely to appreciably alter the conclusion.

Indexed as

Smoking CessationAdultHumansNaltrexoneNarcotic AntagonistsSmokingTobacco Use Cessation DevicesNaltrexoneNarcotic Antagonistsnaltrexoneopioid antagonistssmoking abstinencesmoking cessationtobacco

Identifiers

PMID24633528
PMCPMC3963070
OpenAlexW2151587109

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.