Evidence map›Paper›PMID 33781103›Full record

ArticleJournal of psychopharmacology (Oxford, England)2021

Prediction of MDMA response in healthy humans: a pooled analysis of placebo-controlled studies.

Erich Studerus, Patrick Vizeli, Samuel Harder, Laura Ley, Matthias E Liechti

Open access · bronzeAbstract read
In one paragraph

Article in Journal of psychopharmacology (Oxford, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
5.0field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Psychedelic therapies reconsidered: compounds, clinical indications, and cautious optimism.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Erich StuderusDivision of Personality and Developmental Psychology, University of Basel, Basel, Switzerland.ORCID 0000-0003-4233-0182
Patrick VizeliDivision of Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland.
Samuel HarderDivision of Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland.
Laura LeyDivision of Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland.
Matthias E LiechtiDivision of Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland.ORCID 0000-0002-1765-9659
University Hospital of Basel · CHUniversity of Basel · CH

Funding

Department of Health
6 · The paper itself

Abstract

background3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") is used both recreationally and therapeutically. Little is known about the factors influencing inter- and intra-individual differences in the acute response to MDMA. Effects of other psychoactive substances have been shown to be critically influenced by personality traits and mood state before intake.

methodsWe pooled data from 10 randomized, double-blind, placebo-controlled, cross-over studies performed in the same laboratory in 194 healthy subjects receiving doses of 75 or 125mg of MDMA. We investigated the influence of drug dose, body weight, sex, age, drug pre-experience, genetics, personality and mental state before drug intake on the acute physiological and psychological response to MDMA.

resultsIn univariable analyses, the MDMA plasma concentration was the strongest predictor for most outcome variables. When adjusting for dose per body weight, we found that (a) a higher activity of the enzyme CYP2D6 predicted lower MDMA plasma concentration, (b) a higher score in the personality trait "openness to experience" predicted more perceived "closeness", a stronger decrease in "general inactivation", and higher scores in the 5D-ASC (5 Dimensions of Altered States of Consciousness Questionnaire) scales "oceanic boundlessness" and "visionary restructuralization", and (c) subjects with high "neuroticism" or trait anxiety were more likely to have unpleasant and/or anxious reactions.

conclusionsAlthough MDMA plasma concentration was the strongest predictor, several personality traits and mood state variables additionally explained variance in the response to MDMA. The results confirm that both pharmacological and non-pharmacological variables influence the response to MDMA. These findings may be relevant for the therapeutic use of MDMA.

Indexed as

AdolescentAdultAffectDose-Response Relationship, DrugFemaleHallucinogensHumansMaleMiddle AgedN-Methyl-3,4-methylenedioxyamphetaminePersonalityRandomized Controlled Trials as TopicYoung AdultHallucinogensN-Methyl-3,4-methylenedioxyamphetamineindividual differencesMDMApredictionsafetyset and setting

Identifiers

PMID33781103
PMCPMC8155734
OpenAlexW3141124634

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.