The Effect of Structured Motivational Interviews Based on the Five-Step (5A) Model on Behavioral Change in Individuals at High Risk of Obesity in Family Medicine: A Mixed-Methods Randomized Controlled Trial Study Protocol
Sponsor study identifier
interventional
60
1 country
1
Study Start
September 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
The goal of this clinical trial is to learn if a structured motivational interviewing program based on the Five-Step (5A) model works to promote healthy lifestyle behaviors in individuals at high risk of obesity. It will also learn about the effects on anthropometric measurements and physical activity levels. The main questions it aims to answer are:
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
August 9, 2026
Actual (reported)August 18, 2026
Actual (reported)September 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Change in Body Mass Index (BMI)
Changes in body mass index measured in kg/m² from baseline to the end of the intervention period.
Until the end of five motivational interviews that will take place over a three-month period
Change in Body Weight
Changes in body weight measured in kilograms (kg) from baseline to the end of the intervention period.
Until the end of five motivational interviews that will take place over a three-month period
Change in Waist Circumference
Changes in waist circumference measured in centimeters (cm) from baseline to the end of the intervention period.
Until the end of five motivational interviews that will take place over a three-month period
University of Rhode Island Change Assessment (URICA) Scale Score
Changes in readiness score measured by the 32-item University of Rhode Island Change Assessment (URICA) scale. Each item is rated on a 5-point Likert scale ranging from 1 to 5, where higher scores indicate greater readiness for change.
Until the end of five motivational interviews that will take place over a three-month period
Change in Physical Activity Level
Until the end of five motivational interviews that will take place over a three-month period.
Qualitative Assessment of Motivational Factors
Until the end of five motivational interviews that will take place over a three-month period.
Experimental Group: Participants receive five structured motivational interviewing sessions over a three-month intervention period, with anthropometric measurements repeated at each session.
Control Group: Participants are monitored with standard routine care over a three-month intervention period without motivational interviewing sessions.
Motivational Interviewing Techniques and the Five-Step (5A) Model Framework
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Ümraniye No.19 Family Health Center
Istanbul, Ümraniye, Turkey (Türkiye)
Gülhan Kalmuk, Assist. Prof. Dr.
Istinye University
Simay Hiçyılmaz, MD, PhD Candidate
Istinye University
First Submitted
August 9, 2026
First Posted
August 18, 2026
Study Start
September 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
November 2026
Contact the study team to confirm eligibility.
Planned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
November 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Last Updated
August 18, 2026
Record last verified: 2026-08
The datasets generated and/or analyzed during the current study will not be publicly available due to participant privacy but will be available from the corresponding author on reasonable request after the publication of the main trial results. De-identified participant data will be shared subject to approval.
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Source: ClinicalTrials.gov.
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