Developing and testing the feasibility of an intervention to reduce alcohol consumption in obese men

Modifying Alcohol Consumption to Reduce Obesity (MACRO): developing and feasibility testing of a complex community-based intervention for men

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN55309164

Enrollment

Registered

2014-08-28

Start date

2015-03-16

Completion date

Unknown

Last updated

2017-05-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obese men who regularly drink alcohol Nutritional, Metabolic, Endocrine Obesity due to excess calories

Interventions

Participants are randomised to two groups. Randomisation will be carried out using the secure remote web-based system provided by the Tayside Clinical Trials Unit. Randomisation will be stratified by

assist with planning coping strategies

and introduce the development of a personal plan to reduce consumption. This session will be delivered by trained lay coordinators and will last approximately 20 - 30 minutes. Sessions will be audio r

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1. Men aged 35-64 years 2. Regularly consume >21 units of alcohol per week 3. Obese (BMI>30)

Exclusion criteria

Exclusion criteria: 1. Men who are currently attending an Alcohol Problem Service 2. Men who are currently attending a weight loss programme 3. Men who cannot communicate in English (verbally and by text message) 4. Men who cannot be contacted by mobile phone for any part of the intervention period

Design outcomes

Primary

Measure	Time frame
1. Recruitment (measured at baseline) and retention (measured at follow up, five months post-recruitment) 2. Acceptability of the intervention, measured using a bespoke questionnaire at follow up 3. Engagement with components of the behaviour change strategy, assessed by monitoring responses to the text message intervention during the two-month intervention period These measures test whether the feasibility study was successfully conducted. Each will be based on data collected at several timepoints throughout the study, as they are concerned with study conduct.	—

Measure

Time frame

1. Recruitment (measured at baseline) and retention (measured at follow up, five months post-recruitment) 2. Acceptability of the intervention, measured using a bespoke questionnaire at follow up 3. Engagement with components of the behaviour change strategy, assessed by monitoring responses to the text message intervention during the two-month intervention period These measures test whether the feasibility study was successfully conducted. Each will be based on data collected at several timepoints throughout the study, as they are concerned with study conduct.

—

Secondary

Measure	Time frame
1. The impact of the study on the perceived benefits of moderated drinking, measured using a bespoke questionnaire at follow up, five months post-recruitment 2. Intention to reduce alcohol consumption, measured using a bespoke questionnaire at follow up, five months post-recruitment 3. Self-efficacy in ability to reduce drinking and lose weight, measured using the Drinking Refusal Self-efficacy Skills questionnaire at follow up, five months post-recruitment The two primary outcome measures for a full RCT of the intervention will also be measured, although there will be insufficient numbers of participants in the feasibility study to detect treatment effects: 1. Reported weekly alcohol consumption, measured using the Alcohol Timeline Follow Back (TLFB) at baseline and at follow up, five months post-recruitment 2. Weight loss, measured using Seca 813 medical scales at baseline and at follow up, five months post-recruitment	—

Measure

Time frame

1. The impact of the study on the perceived benefits of moderated drinking, measured using a bespoke questionnaire at follow up, five months post-recruitment 2. Intention to reduce alcohol consumption, measured using a bespoke questionnaire at follow up, five months post-recruitment 3. Self-efficacy in ability to reduce drinking and lose weight, measured using the Drinking Refusal Self-efficacy Skills questionnaire at follow up, five months post-recruitment The two primary outcome measures for a full RCT of the intervention will also be measured, although there will be insufficient numbers of participants in the feasibility study to detect treatment effects: 1. Reported weekly alcohol consumption, measured using the Alcohol Timeline Follow Back (TLFB) at baseline and at follow up, five months post-recruitment 2. Weight loss, measured using Seca 813 medical scales at baseline and at follow up, five months post-recruitment

—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 10, 2026