Evidence map›Paper›PMID 34331080›Full record

Trial reportPsychopharmacology2021

Effects of topiramate on the association between affect, cannabis craving, and cannabis use in the daily life of youth during a randomized clinical trial.

Noah N Emery, Ryan W Carpenter, Samuel N Meisel, Robert Miranda

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pharmacotherapies for cannabis use disorder.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Daily associations between resilience factors, substance use, and affect among sexual minority youth.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2024
    Article
  9. Review
  10. Article
  11. 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

4 authors at 3 institutions in 1 country.

Noah N EmeryDepartment of Psychology, Colorado State University, Fort Collins, CO, USA.
Ryan W CarpenterDepartment of Psychological Sciences, University of Missouri St. Louis, St. Louis, MO, USA.
Samuel N MeiselCenter for Alcohol and Addiction Studies, Brown University, Box S121-4, Providence, RI, 02912, USA.
Robert MirandaCenter for Alcohol and Addiction Studies, Brown University, Box S121-4, Providence, RI, 02912, USA. Robert_Miranda_Jr@brown.edu.
Brown University · USColorado State University · USUniversity of Missouri–St. Louis · US

Funding

ALCOHOL INTERVENTION/TREATMENT OUTCOME RESEARCH TRAININGT32AA007459 · NIAAA · BROWN UNIVERSITY · PI ROBERT MIRANDA, PETER M. MONTI · 1986 to 2026
$13.3M
Substance Abuse Intervention/Outcome Research TrainingT32DA016184 · NIDA · BROWN UNIVERSITY · PI Damaris J. Rohsenow, JENNIFER W. TIDEY · 2003 to 2026
$6.1M
Mentored Patient-Oriented Research on Adolescent Alcohol Misuse and TreatmentK24AA026326 · NIAAA · BROWN UNIVERSITY · PI ROBERT MIRANDA · 2018 to 2026
$1.7M
Biobehavioral effects of topiramate on cannabis-related outcomes in adolescentsR01DA026778 · NIDA · BROWN UNIVERSITY · PI MIRANDA, ROBERT · 2009 to 2010
$1.1M
Leveraging Ecological Momentary Assessment to Examine Peer Affiliations as a Mechanism of Behavior Change in Youth Alcohol Use TreatmentF32AA028414 · NIAAA · EMMA PENDLETON BRADLEY HOSPITAL · PI MEISEL, SAMUEL NOAH · 2020 to 2022
$159k
NIAAA NIH HHS AA007459NIAAA NIH HHS AA026326NIAAA NIH HHS AA028414NIAAA NIH HHS F32 AA028414NIAAA NIH HHS K24 AA026326NIAAA NIH HHS L30 AA027041NIAAA NIH HHS L30AA027041NIAAA NIH HHS T32 AA007459NIDA NIH HHS DA016184NIDA NIH HHS DA026778NIDA NIH HHS R01 DA026778NIDA NIH HHS T32 DA016184
6 · The paper itself

Abstract

rationaleTopiramate is an anticonvulsant currently under study for treating substance use disorders. Topiramate is thought to reduce substance use by attenuating craving and the rewarding effects of acute substance use through its concurrent GABAergic agonism and glutamatergic antagonism. Importantly, topiramate also impacts mood states central to many models of substance use. Despite this, little previous research has examined whether topiramate attenuates the respective associations of affect and craving with substance use.

objectivesWe conducted a secondary analysis of 63 youths that exhibited heavy cannabis use, aged 15-24 years, who were randomized in a double-blinded 6-week clinical trial comparing the effects of topiramate (up to 200 mg/day) and placebo on cannabis use. Ecological momentary assessment data were leveraged to model the role positive affect, negative affect, and craving on use over the 6-week period and whether topiramate attenuated associations between these feeling states and cannabis use.

resultsFindings showed that craving was positively associated with use at the within-person level, while positive affect was negatively associated with use at the between-person level. Topiramate appears to attenuate the negative association of between-person positive affect (i.e., average) and cannabis use. Specifically, those in the placebo condition exhibited this inverse association between average positive affect and use while those in topiramate condition did not. No other significant affect or affect × medication condition interactions were observed.

conclusionsThese findings implicate craving and low positive affect as important risk factors for cannabis use in youth in treatment. Topiramate may attenuate this association for positive affect.

Indexed as

CannabisSubstance-Related DisordersAdolescentAffectCravingEcological Momentary AssessmentHumansTopiramateTopiramateCannabis useCravingEcological momentary assessmentPositive affectTopiramateYouth

Identifiers

PMID34331080
PMCPMC8908944
OpenAlexW3186036860

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.