NCT03952429

Brief Summary

The rate of relapse following an inpatient alcohol rehabilitation program has been around 50% for a number of years. Offered treatments mainly focus on conscious and controllable aspects of behaviour, but research has found that much of the craving in addiction is guided by automatic processes, which are for a large part unconscious and poorly controlled by the individual. One way to influence these automatic processes is by applying cognitive bias modification, a cognitive-behavioural intervention that can be applied by a computer application. In alcohol addition, a common cognitive bias is the Alcohol-Approach bias. The Anti-Alcohol Training is a form of cognitive bias modification that was developed to reduce this approach bias and it has been shown to reduce the rates of relapse by 4-8%. A drawback of the training is that patients do not continue this at home after discharge. One way to increase accessibility is to offer the training in an app-game form. In this study the investigators have developed a smartphone based training app that allows patients to more easily use the Anti-Alcohol training at home after discharge. The study aims to assess whether use of the app further reduces the alcohol bias and whether it can reduce yearly relapse rates.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
600

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 10, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 16, 2019

Completed
7 days until next milestone

Study Start

First participant enrolled

May 23, 2019

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 27, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 27, 2023

Completed
Last Updated

April 30, 2026

Status Verified

April 1, 2026

Enrollment Period

4.4 years

First QC Date

May 10, 2019

Last Update Submit

April 26, 2026

Conditions

Keywords

alcohol dependencealcohol abusewithdrawal

Outcome Measures

Primary Outcomes (3)

  • Relapse Rates

    Relapse rates after leaving inpatient care, assessed through standard clinic follow-ups

    3 months after care, 1 year after care

  • App Usage

    Number of times App training has been completed

    within 3 months after leaving care

  • Craving

    Craving for alcohol assessed in app, 5 point likert scale with alcohol images, OCDS

    after 5 training sessions of the app

Study Arms (2)

Active Cognitive Bias App

ACTIVE COMPARATOR

Participants will receive the Anti-Alcohol App with the Active Cognitive Bias modification, as well as participant diaries assessing alcohol consumption and several questionnaires.

Behavioral: Anti Alcohol App with Active Cognitive Bias

Inactive Cognitive Bias Modification

PLACEBO COMPARATOR

Participants will receive the Anti-Alcohol App with the Inactive Cognitive Bias Modification, as well as participant diaries assessing alcohol consumption and several questionnaires.

Behavioral: Inactive Cognitive Bias Modification

Interventions

The active version includes an active form of cognitive bias modification, i.e. the user has to avoid alcohol stimuli 90% of the time, while they approach soft drinks 90% of the time.

Active Cognitive Bias App

The control version includes an placebo form of cognitive bias modification, i.e. the users avoid and approach alcohol and softdrink stimuli for an equal number of trials.

Inactive Cognitive Bias Modification

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • A diagnosis of Alcohol dependence / Alcohol Use disorder
  • Taking part in alcohol rehabilitation program in Salus Clinic Lindow or being part of a self-help group

You may not qualify if:

  • Visual or motor impairments that would affect the use of smartphones

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Salus Klinik Lindow

Lindow, Brandenburg, Germany

Location

MeSH Terms

Conditions

Alcoholism

Interventions

EthanolAmyloid

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

AlcoholsOrganic ChemicalsMultiprotein ComplexesMacromolecular SubstancesProteinsAmino Acids, Peptides, and Proteins

Study Officials

  • Prof Johannes Lindemeyer

    Medizinische Hochschule Brandenburg Theodor Fontane

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Participants will be notified there are 2 versions of the app and they will randomly be assigned to one of the 2 conditions, but will not know which one. Therapists giving the users input on how to use the app do not know in which condition the patient is either. Outcome (relapse rates) are assessed by interns and admin staff of the clinic who are independent from the study. The study investigators do not know the patients and only receive anonymized data on group and outcome variables.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: This is a parallel study, participants will be randomised into 2 groups: one will be given the App with cognitive bias modification, whilst the other one will receive the app without the modification
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 10, 2019

First Posted

May 16, 2019

Study Start

May 23, 2019

Primary Completion

October 27, 2023

Study Completion

October 27, 2023

Last Updated

April 30, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Anonymised participant data will be shared with the collaborators at Cambridge University

Shared Documents
STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE

Locations