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Brief Psychological Intervention to Reduce Alcohol Consumption

30. Juni 2026 aktualisiert von: Emma Brown, Lancaster University
Continuous levels of hazardous alcohol consumption (i.e., 14 or more units per week) is one of the leading risk factors of ill health and early mortality, contributing to around 9,809 deaths a year in the UK. The aim of the present research is to test the effect of helping people to reward themselves when they have successfully reduced/abstained from their previous levels of alcohol consumption. Each participant will be randomly allocated to one of two conditions. The trial requires 128 participants to perform a fully powered statistical analysis. The two conditions include: (1) a control condition (asked to form a plan to reduce/abstain from alcohol consumption), or (2) a weekly self-incentivising condition (asked to reward themselves at the end of each week that they have successfully reduced/abstained their previous levels of alcohol consumption). The main outcome measure will be units of alcohol consumed/not consumed, which will be self-reported at 1-week and 1-month follow-up time points.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

The research aims to test the role of self-incentivising implementation intentions for reductions/abstinence of alcohol consumption among people aged 18 and over, residing in the UK, and consuming 14 units of more of alcohol at the start of the study. The effectiveness of self-incentives has been successfully seen previously within health behaviour change, has not been tested in reduction/abstinence of alcohol consumption. Therefore, this research will build on what is known about the effectiveness of self-incentives used for increasing fruit and vegetable consumption, and smoking cessation.

This study is a randomised controlled trial with the between participants factor of condition which has two levels:

1. Control (plan) or 2. Weekly self-incentivising implementation intention.

The within participants' factor will be time which has three levels:

Baseline (T1) Follow-up (T2) (1-week following baseline) Follow-up (T3) (1-month following baseline)

An ethical concern is that participants in the control condition may struggle more to reduce/abstain from alcohol consumption as they will not have the additional benefits of being within an experimental condition which uses self-incentives to aid their attempt. A control condition is needed to monitor if changes to alcohol consumption is due to the use of self-incentives or another behaviour change technique.

The recruitment process will recruit participants to complete an online questionnaire (via Qualtrics), from Prolific. Prolific is an online recruitment platform, which allows screeners to be set (e.g., age, residency, consumption level) prior to contacting potential participants. Prolific then contacts the participants to which the screeners apply, and the participants can decide if they would like to take part. The researcher can then set restrictions to only allow completion of the follow-up questionnaires, based on those participants who completed the online questionnaire at baseline.

All participants who are able to provide informed consent, are over the age of 18 years old, resident in the UK (due to discrepancies in the safe recommended alcohol consumption rates across countries), are eligible to take part in the study. Unfortunately, the study does not cater for people who cannot understand English at the present time, although this will be monitored for amendments in future studies.

The participant information sheet included prior to the online questionnaire includes details about the study, costs and benefits of taking part in the study, and the right to consent and withdraw at any point throughout the study. There are no risks involved in taking part in the study. Participants are reimbursed via Prolific based on the expected time to complete each questionnaire (i.e., £3.55 per questionnaire completed, which equates to more than the current UK living wage). There is a minimal burden in time taken to complete the questionnaires, which should take no longer than 15 minutes per time point, though this time estimation is considered generous.

In terms of confidentiality, participants will not provide any identifier other than their Prolific ID. This ensures that no identifying information is available to the research team, but that the participant can be added to the screener for completion of the baseline questionnaires, and that all questionnaires (baseline, 1-week follow-up, and 1-month follow-up) can be matched.

There are no conflicts of interest. Participants are provided with contact details of the research team, should they like to contact for a summary of the results.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

228

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Ja

Beschreibung

Inclusion Criteria:

  • Aged 18 years or over
  • Able to understand written English
  • Competent to provide informed consent
  • Residing in the UK
  • Regularly consuming 14 units of alcohol or more at baseline

Exclusion Criteria:

  • Note aged 18 years old or over
  • Not able to understand written English
  • Not competent to provide informed consent
  • Not residing in the UK
  • Not regularly consuming 14 units of alcohol or more at baseline

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Verhütung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Behavioural: Self-incentive
Weekly self-incentivising
Participants read a brief statement designed to encourage them to reduce/abstain from alcohol consumption (we would like you to plan to reduce/abstain your alcohol consumption). Participants are then asked to specify a self-incentive on which they could implement at the end of each week which they have been successful.
Aktiver Komparator: Plan
Control
Participants read a brief statement designed to encourage them to reduce/abstain from alcohol consumption (we would like you to plan to reduce/abstain your alcohol consumption). Participants are then asked to form their plan.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Alcohol consumption
Zeitfenster: Up to 1-month
Total units of alcohol consumed in last week
Up to 1-month

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Alcohol use disorders identification test (AUDIT)
Zeitfenster: Up to 1- month
Changes in AUDIT scores
Up to 1- month
Compliance to self-incentivise
Zeitfenster: Up to 1-month
Whether participants allocated to the intervention self-incentives
Up to 1-month
Frequency of self-incentivisation
Zeitfenster: Up to 1-month
How frequently participants allocated to the intervention condition use self-incentives
Up to 1-month
Self-incentives used
Zeitfenster: Up to 1-month
What self-incentives are chosen by participants (monetary, BCT etc)
Up to 1-month

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

20. Mai 2026

Primärer Abschluss (Tatsächlich)

21. Juni 2026

Studienabschluss (Tatsächlich)

21. Juni 2026

Studienanmeldedaten

Zuerst eingereicht

30. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

30. Juni 2026

Zuerst gepostet (Tatsächlich)

7. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

7. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

30. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • FHM-2024-4354-RECR-4

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Beschreibung des IPD-Plans

Data may be shared if this complies with ethical guidelines

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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