Evidence map›Paper›PMID 22669171›Full record

Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2012

A randomized, double-blind, placebo-controlled, trial of lamotrigine therapy in bipolar disorder, depressed or mixed phase and cocaine dependence.

E Sherwood Brown, Prabha Sunderajan, Lisa T Hu, Sharon M Sowell, Thomas J Carmody

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 4 pooled it
2.5field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Antipsychotic medications for cocaine dependence.The Cochrane database of systematic reviews · 2016
    Pooled it
  4. Anticonvulsants for cocaine dependence.The Cochrane database of systematic reviews · 2015
    Pooled it
  5. Trial
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. HCN Channel Targets for Novel Antidepressant Treatment.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  12. Review
  13. 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

5 authors at 1 institution in 1 country.

E Sherwood BrownDepartment of Psychiatry, The University of Texas Southwestern Medical Center, Dallas, TX 75390-8849, USA. Sherwood.Brown@UTSouthwestern.edu
Prabha Sunderajan
Lisa T Hu
Sharon M Sowell
Thomas J Carmody
The University of Texas Southwestern Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bipolar disorder is associated with very high rates of substance dependence. Cocaine use is particularly common. However, limited data are available on the treatment of this population. A 10-week, randomized, double-blind, placebo-controlled trial of lamotrigine was conducted in 120 outpatients with bipolar disorder, depressed or mixed mood state, and cocaine dependence. Other substance use was not exclusionary. Cocaine use was quantified weekly by urine drug screens and participant report using the timeline follow-back method. Mood was assessed with the Hamilton rating scale for depression, quick inventory of depressive symptomatology self-report, and young mania rating scale. Cocaine craving was assessed with the cocaine-craving questionnaire. Data were analyzed using a random regression analysis that used all available data from participants with at least one postbaseline assessment (n=112). Lamotrigine and placebo groups were similar demographically (age 45.1±7.3 vs 43.5±10.0 years, 41.8% vs 38.6% women). Urine drug screens (primary outcome measure) and mood symptoms were not significantly different between groups. However, dollars spent on cocaine showed a significant initial (baseline to week 1, p=0.01) and by-week (weeks 1-10, p=0.05) decrease in dollars spent on cocaine, favoring lamotrigine. Few positive trials of medications for cocaine use, other than stimulant replacement, have been reported, and none have been reported for bipolar disorder. Reduction in amount of cocaine use by self-report with lamotrigine suggests that a standard treatment for bipolar disorder may reduce cocaine use. A study limitation was weekly assessment of urine drug screens that decreased the ability to detect between-group differences.

Indexed as

AdolescentAdultAgedBipolar DisorderCalcium Channel BlockersCocaine-Related DisordersDepressionDouble-Blind MethodFemaleHumansKaplan-Meier EstimateLamotrigineMaleMiddle AgedPsychiatric Status Rating ScalesTreatment OutcomeCalcium Channel BlockersLamotrigineTriazines

Identifiers

PMID22669171
PMCPMC3442350
OpenAlexW2074375773

What OpenQuestion holds

Textmetadata
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.