Cue Effects in Human Addiction: Pavlovian to Instrumental Transfer

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age16-65
SponsorCharite University, Berlin, Germany

About this trial

Individuals with substance use disorders (SUD) have to cope with drug-related cues and contexts, which can affect instrumental drug seeking as shown with Pavlovian to instrumental transfer (PIT) paradigms in animals and humans. The investigators aimed to investigate the impact of acute and chronic stress on Pavlovian-to-instrumental transfer (PIT), how PIT it is associated with cognitive control abilities and whether such effects predict losing vs. regaining control in subjects with AUD. Moreover, the investigators aimed to develop a novel full transfer task that assesses both, general and specific PIT to investigate whether specific PIT differs between alcohol use disorder (AUD) and control subjects.

Eligibility criteria

Qualifiers

males and females between 16-65 years of age

AUD subjects only: meet a minimum of 2 criteria for DSM-5 alcohol-related disorder (AUD) (not requiring withdrawal as assessed by an independent psychiatrist) and AUDIT > 4

Smokers: Daily smokers only: smoke 7 days/week during the last three months

Non-daily smokers only: smoke at least once but less than 7 days/week during the last three months

Disqualifiers

Lifetime diagnosis according to DMS-5 for: Bipolar disorder, schizophrenia, schizophrenia spectrum disorder, substance dependence except for alcohol, nicotine, or cannabis

Currently meeting DSM-5 diagnostic criteria for a depressive episode, suicidal ideation

Past traumatic brain injury or severe neurological disease (such as dementia, Parkinson's disease, multiple sclerosis)

Pregnancy or breastfeeding

Trial design

Treatments tested in this trial

  • fMRI imaging (BOLD)
  • sMRI (structure)
  • Trier Social Stress Test
  • PIT paradigm
  • Counting Stroop task
  • No-go Simon task
  • Stop Signal Task
  • blood samples
  • questionnaires for chronic stress
  • hair samples
  • saliva samples
  • EMA assessment
  • clinical diagnostic

Treatment groups

300 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Charite University, Berlin, Germany

Lead sponsor

Technische Universität Dresden

Collaborator