Skip to content

Investigating dopamine synthesis capacity in (pathological) gamblers: An explorative Positron Emission Tomography study

Investigating dopamine synthesis capacity in (pathological) gamblers: An explorative Positron Emission Tomography study - Dopamine synthesis capacity and gambling

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON37017
Enrollment
48
Registered
2013-01-17
Start date
2014-03-18
Completion date
Unknown
Last updated
2024-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

gambling addiction pathological gambling

Interventions

None listed

Sponsors

Radboud Universiteit Nijmegen
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: - Males volunteers between 18 and 65 years of age - Predominant right-handedness - Gambling status: - Gambling group: *pathological* or *problem* gamblers, as assessed by a score >= 4 on the SOGS questionnaire and the presence of 4 or more DSM-IV criteria for the diagnosis of pathological gambling (assessed using DIS-T) - Control group: score

Exclusion criteria

Exclusion criteria: - Current psychiatric treatment (excluding cognitive behavioural therapy) - Major depressive disorder, post-traumatic stress disorder and substance/alcohol abuse/dependence (except nicotine dependence) in the 6 months prior to the start of the study - Lifetime history of other DSM-IV axis I disorders and related psychiatric treatment - Average use of more than 4 alcoholic beverages daily. - Self-reported inability or unease to cease smoking during the whole testing session - Use of psychotropic medication, or of recreational drugs over a period of 1 week prior to each test session, and use of alcohol within the last 24 hours before each measurement. - (History of) neurological treatment - (History of) epilepsy

Design outcomes

Primary

MeasureTime frame
- Baseline dopamine synthesis capacity in the striatum measured with[18F]fluoro-dopa (F-DOPA) Positron Emission Tomography (PET) - Behavioural performance on computerized tasks measuring reward and loss sensitivity

Secondary

MeasureTime frame
- Self-report questionnaires

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)