Alcohol Use Disorder
Conditions
Brief summary
Alcohol use disorder (AUD) is a burdensome clinical disorder with high relapse rates. Virtual Reality (VR)-based therapeutic and diagnostic approaches have received increasing attention in the treatment of AUD but evidence on the induction of craving via VR scenarios is still needed. Craving for alcohol is associated with psychological and physiological responses. This single-arm clinical study will be conducted including n=60 patients with AUD. Using a head-mounted display (HMD), patients will be confronted with three different VR scenarios (neutral vs. two target situations) while heart rate, heart rate variability (HRV), pupillometry and electrodermal activity (EDA) will be measured continuously. Subjective craving levels will be assessed pre-/during/post-exposure to each VR scenario.
Interventions
DIAGNOSTIC_TESTVirtual Reality-based cue exposure paradigm
Virtual Reality (VR) cue exposure to alcohol-associated cues using head-mounted displays (HMD)
Sponsors
Charite University, Berlin, Germany
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* age: 18-65 years * diagnosis of alcohol dependence according to ICD-10 (F10.2) * completed in-patient withdrawal treatment during the last 3 months * history of alcohol craving, confirmed via craving questionnaires * able to provide written informed consent
Exclusion criteria
* substance dependence other than alcohol and nicotine * current alcohol intoxication (randomly tested via measurement of breath alcohol concentration) * unable to understand the study information, consent form or principles of the study * abstinence for less than 7 days or on-going consumption of alcohol * severe neuropsychiatric disorder, e.g. schizophrenia spectrum disorders, bipolar affective disorder or substantial cognitive impairment * serious illnesses influencing brain-/heart-function with influence on physiological study parameters. * acute suicidality (or acute endangerment of others) * concurrent pharmacological treatment targeting AUD (i.e. benzodiazepines) or craving (i.e. acamprosate, disulfiram, naltrexone, nalmefene) and further medication significantly influencing heart frequency.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| change in psychophysiological craving levels (heart rate) elicited by alcohol-associated cues | 20-30 min VR exposure | Changes in craving levels measured continuously by heart rate (bpm = beats per minute) during VR-exposure to alcohol-associated cues compared to neutral cues. |
| change in psychophysiological craving levels (electrodermal activity) elicited by alcohol-associated cues | 20-30 min VR exposure | Changes in craving levels measured continuously by electrodermal activity (micro-Siemens) during VR-exposure to alcohol-associated cues compared to neutral cues. |
| change in psychophysiological craving levels elicited by alcohol-associated cues | 20-30 min VR exposure | Changes in craving levels measured continuously by pupillometry (pupil dilation in mm) during VR-exposure to alcohol-associated cues compared to neutral cues. |
| change in subjective craving levels elicited by alcohol-associated cues | 20-30 min VR exposure | Changes in craving levels measured by subjective parameters (visual analogue scale = VAS, scale 0-100) before, during and after VR-exposure to alcohol-associated cues compared to neutral cues |
| change in psychophysiological craving levels (heart rate variability) elicited by alcohol-associated cues | 20-30 min VR exposure | Changes in craving levels measured continuously by heart rate variability (ms) during VR-exposure to alcohol-associated cues compared to neutral cues. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| development of subjective craving levels post-exposure | 3 hours after VR-exposure | changes of subjective craving (VAS) over the following 3 hours after VR-exposure |
| context-related change in craving levels | 20-30 minutes VR Exposure | changes in subjective and objective craving levels compared between the two VR-scenarios bar vs. living room |
Countries
Germany
Outcome results
None listed