AzTrials
AzTrials

Alcohol Use DisordersLeADNCT01679145

Learning and Relapse Risk in Alcohol Dependence

An observational study of Alcohol Use Disorders, run by Technische Universität Dresden at 3 sites in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The aim of this project is to assess which behavioral and neuroimaging alterations associated with reward- based learning predict relapse in alcohol- dependent patients within a follow- up period of 12 months. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Alcohol Use Disorders
How many people
225 participants
Where
3 sitesGermany
Study dates
Jan 2012to Mar 2016
How long will I take part?
1 Year
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Detoxified alcohol- dependent patients and age- and gender matched healthy controls living in Germany

Who may be able to join

  • Alcohol dependence according to DSM-IV
  • Minimum of 72 hours of abstinence, maximum of 21 days of abstinence
  • Minimum of three years of alcohol dependence
  • Low severity of withdrawal symptoms
  • Ability to provide fully informed consent and to use self- rating scales

Who cannot join

  • Lifetime history of DSM- IV bipolar or psychotic disorder
  • Current threshold DSM-IV diagnosis of any following disorders: current major - depressive disorder, generalized anxiety disorder, PTSD, borderline personality disorder or obsessive- compulsive disorder
  • History of substance dependence other than alcohol or nicotine dependence

Trial locations and contacts

3 sites in 1 country.

Germany3 sites
  • Charité - Universitätsmedizin Berlin

    Berlin, State of Berlin, 10117

  • Technische Universität Dresden

    Dresden, Saxony, 01187

  • Universitaetsklinikum Carl Gustav Carus at the Technische Universitaet Dresden

    Dresden, Saxony, 01307

Other trials in Germany

About this study

Official title: Learning Mechanisms as Predictors of Treatment Outcome in Alcohol- Dependent Patients

The aim of this project is to assess which behavioral and neuroimaging alterations associated with reward- based learning predict relapse in alcohol- dependent patients within a follow- up period of 12 months.

The investigators will explore how these alterations interact with clinical and psychosocial factors which can modify the relapse risk. Functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) will be used to identify neurofunctional abnormalities in neurotransmitter systems. The investigators will also provide data for genetic analysis and modeling.

Read more

Patients will be detoxified in an inpatient setting and followed for 12 months using the Time-Line Follow- Back Procedure. Clinical assessments, behavioral paradigms of learning and brain imaging will be carried out within at least 4 half- lives after any psychotropic medication.

The investigators will implement and apply functional imaging paradigms assessing Pavlovian-to-instrumental transfer and reversal learning tasks and associate model parameters of learning with alcohol craving, intake and prospective relapse risk.

Read the detailed description

This project will examine 150 detoxified alcohol-dependent patients and 100 age- and gender matched controls. The main aim of this project is to assess 1) which behavioural and neuroimaging alterations (fMRI) associated with reward-based learning (see Projects 1 \& 3) predict relapse within the follow-up period of 6 months, 2) how these interact with clinical and psychosocial factors which can modify the relapse risk, and 3) to provide data for genetic and imaging analyses and modelling. Furthermore, we will explore gender effects on functional imaging parameters of learning. Patients will be detoxified in an inpatient setting and followed for 6 months using the Form 90 and Time-Line Follow-Back Procedure. Clinical assessments, behavioral paradigms of learning, and brain imaging will be carried out within at least 4 half-lives after any psychotropic medication. Subjects will undergo medical management with bimonthly follow-ups and predefined in- and exclusion criteria as described previously. We will implement and apply functional imaging paradigms assessing Pavlovian-to-instrumental transfer and reversal learning as described in Projects 1 and 3. We will associate model parameters of learning with alcohol craving, intake and prospective relapse risk. Independent of these central questions, we will also assess comorbidity, psychosocial and neurobiological disease severity markers to control for specificity of findings.

Keywords
Reward- based learning, Pavlovian-to-instrumental transfer, Functional imaging, Relapse risk
Medical subject headings
Alcoholism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01679145
Study groupRoleWhat they receive
Alcohol- dependent patientsDetoxified alcohol- dependent patients in an inpatient setting
Control groupAge- and gender matched healthy controls

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. blood oxygenation level dependent (BOLD) response

    investigation of neuronal activation of the mesolimbic system in alcohol-dependent patients and healthy controls using 3 Tesla magnetic resonance imaging

    Measured: first assessment time point (alc. dependent pat. up to 21 days after detoxification)

Secondary outcomes (1)
  1. Treatment response

    test the predictive effects of learning parameters and related neuronal correlates for treatment outcome (relapse vs abstinence) in alcohol-dependent patients

    Measured: 12-month follow-up period beginning after first assessment timepoint

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Sep 2012 (estimated)
  2. Study startJan 2012
  3. Primary completionMar 2016
  4. Study completionMar 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
225 participants (actual)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT01679145
Sponsor's protocol ID
HE2597/141;ZI1119/31;WI709/101
Acronym
LeAD
Status last verified
Jul 2016
First submitted
31 Aug 2012
Last updated
28 Jul 2016
Results posted
No
Data monitoring committee
No

Publications

  • Spitta G, Fliedner LE, Gleich T, Zindler T, Sebold M, Buchert R, Heinz A, Gallinat J, Friedel E. Association between DRD2/ANKK1 TaqIA Allele Status and Striatal Dopamine D2/3 Receptor Availability in Alcohol Use Disorder. J Integr Neurosci. 2022 Oct 28;21(6):171. doi: 10.31083/j.jin2106171.

    PubMed 36424756
  • Zindler T, Frieling H, Fliedner L, Veer IM, Neyazi A, Awasthi S, Ripke S, Walter H, Friedel E. How alcohol makes the epigenetic clock tick faster and the clock reversing effect of abstinence. Addict Biol. 2022 Sep;27(5):e13198. doi: 10.1111/adb.13198.

    PubMed 36001430
  • Sebold M, Spitta G, Gleich T, Dembler-Stamm T, Butler O, Zacharias K, Aydin S, Garbusow M, Rapp M, Schubert F, Buchert R, Gallinat J, Heinz A. Stressful life events are associated with striatal dopamine receptor availability in alcohol dependence. J Neural Transm (Vienna). 2019 Sep;126(9):1127-1134. doi: 10.1007/s00702-019-01985-2. Epub 2019 Feb 12.

    PubMed 30747311
  • Schad DJ, Garbusow M, Friedel E, Sommer C, Sebold M, Hagele C, Bernhardt N, Nebe S, Kuitunen-Paul S, Liu S, Eichmann U, Beck A, Wittchen HU, Walter H, Sterzer P, Zimmermann US, Smolka MN, Schlagenhauf F, Huys QJM, Heinz A, Rapp MA. Neural correlates of instrumental responding in the context of alcohol-related cues index disorder severity and relapse risk. Eur Arch Psychiatry Clin Neurosci. 2019 Apr;269(3):295-308. doi: 10.1007/s00406-017-0860-4. Epub 2018 Jan 8.

    PubMed 29313106

Questions about this trial

What is this clinical trial studying?

An observational study of Alcohol Use Disorders, run by Technische Universität Dresden at 3 sites in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

blood oxygenation level dependent (BOLD) response (time frame: first assessment time point (alc. dependent pat. up to 21 days after detoxification)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01679145, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jul 2016.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in