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Pharmacogenetic studies of change in cortisol on ecstasy (MDMA) consumption

Kim Wolff, Eva-Maria Tsapakis, Carmine Maria Pariante, Robert W Kerwin, Mary L. Forsling, Katherine Jean Aitchison

Journal of Psychopharmacology October 3, 2011 DOI: 10.1177/0269881111415737 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational field study Peer reviewed
Sample size 48
Population Self-nominating regular clubbers (30 males, mean age 23 years)
Topics MDMA
Citations 37
Key findings Plasma cortisol increased after clubbing, with significantly greater increases in MDMA-positive participants (736.9 ± 83.2 vs. 350.9 ± 34.5 mmol/l, p = 0.001). The low-activity COMT Met/Met genotype was positively associated with MDMA-induced cortisol change in the whole sample, and CYP2D6 genotype was associated with cortisol change in MDMA-positive subjects; no association was found with 5-HTTLPR. The authors suggest these associations may indicate HPA axis dysregulation from chronic MDMA use, moderated by genetic polymorphism.

Abstract

In this study we investigate the association of cytochrome P450 enzyme CYP2D6, catechol-O-methyl transferase (COMT, Val158Met) and serotonin transporter promoter (5-HTTLPR) genotypes on change in cortisol concentration following 3, 4-methylenedioxy-methamphetamine (MDMA, 'ecstasy') consumption. Forty-eight subjects (30 males, mean age 23 years), self-nominating regular clubbers provided 'in the field' pre- and post-clubbing biological samples and associated information. Of the 39 subjects who provided a post-clubbing urine sample, 21 were positive for MDMA. Plasma cortisol concentrations increased in subjects (n = 48) tested for cortisol, with changes being significantly greater in the MDMA-positive group (736.9 ± 83.2 vs. 350.9 ± 34.5 mmol/l, p = 0.001). We found a positive association between the low activity COMT genotype (Met/Met) and MDMA-induced change in cortisol and also between this and change in cortisol in the whole sample (p = 0.039, Bonferroni corrected). For CYP2D6, there was an association between genotype and change in cortisol, confined to subjects with MDMA-positive urine post-clubbing (p = 0.003, Bonferroni corrected). There was no association with 5-HTTLPR genotype. These associations suggest that chronic use of MDMA may lead to HPA axis dysregulation and that the magnitude of this may be moderated by genetic polymorphism, and warrant further investigation in a larger sample of those who consume the drug on a regular basis.

Comparable studies

Other observational and cohort studies on MDMA, most cited first.

Study Year Design Participants
Subjective Reports of the Effects of MDMA in a Clinical Setting Individuals who took MDMA in a clinical setting 1986 Observational study
Memory impairment in abstinent MDMA ("Ecstasy") users Abstinent MDMA users 1998 Observational cohort
Impaired cognitive performance in drug free users of recreational ecstasy (MDMA) Otherwise healthy young people 2000 Observational
The Psychological and Physiological Effects of MDMA on Normal Volunteers Older, more educated, drug-experienced individuals 1986 Observational cohort
Cognitive performance in recreational users of MDMA or 'ecstasy': evidence for memory deficits Young people who were regular or novice MDMA users, or non-users 1998 Observational cohort n = 30

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