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CompletedNCT06321809Updated Feb 4, 2025Results posted

Intensive Lifestyle Interventions to Overweight and Obese Patients in Primary Care

An observational study in Obesity, Life Style and Lifestyle, Sedentary, sponsored by Duygu Ayhan Baser. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-02-04.

Sponsored by Duygu Ayhan Baser · Observational

Study type
Observational
Model
Case-crossover
Time perspective
Prospective
Enrollment
165
Ages
18 Years to 40 Years
Sex
All
01

Study summary

The goal of this clinical trial is to compare in the effect of different lifestyle interventions in overweight and obese participants. The main questions it aims to answer are:

  • effect on anthropometric measurements
  • effect on lipid profile
  • effect on weight-related quality of life
  • observe the differences between interventions The study participants were stratified into three groups: intervention, control-1, and control-2.
  • Intervention group: They were given a calorie-restricted diet and exercise plan by a dietician or physiotherapist at their first visit, and were followed up by telephone calls at weeks 2, 4, 6, 8 and 10 over 12 weeks.
  • Control-1 group: During the initial medical interview, the participants were given a calorie-restricted diet programme by a dietician and an exercise programme by a physiotherapist; they were followed up over 12 weeks with telephone calls at week 4.
  • Control-2 group: The participants were not provided with any programme, and the importance of weight loss was emphasised by the family physicians. Dietary and physical activity advice was given according to the recommendations in the Turkish Endocrine and Metabolism Association 2019 Obesity Diagnosis and Treatment Guide, and was followed up with phone calls at weeks 2, 4, 6, 8 and 10 over a 12-weeks.
Read the detailed description

With this study, it is aimed to evaluate the effect of intensive lifestyle intervention to be applied to patients and follow-ups made by telephone calls in order to protect overweight and obese patients who apply to primary health care services from obesity and complications of obesity in the pandemic process in which the number of applications to secondary and tertiary care decreased due to pandemic conditions and the number of applications to primary care increased, in addition to this, the susceptibility to obesity increased due to changing lifestyle behaviours with the effect of the pandemic; The aim of this study is to evaluate the effect of intensive lifestyle intervention and telephone follow-ups on body mass index, body composition, lipid profile, obesity-related quality of life and to evaluate different forms of intervention organised as intensive lifestyle intervention and increasing the frequency of follow-up.

02

Conditions studied

  • Obesity
  • Life Style
  • Lifestyle, Sedentary

Keywords

  • primary care
  • obesity
  • lifestyle changes
03

In context

Obesity

6,570 studies on the registry are indexed under Obesity; 1,718 are open to participants now.

This study's enrollment of 165 is above the median of 132 across 1,338 observational studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

This is the only study on the registry with Duygu Ayhan Baser as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

The study\'s participants comprised of overweight and obese individuals who made applications to the Department of Family Medicine at XXX University\'s Faculty of Medicine. Detailed information regarding the study was provided to overweight and obese individuals who applied between the dates of 25th January 2022 and 31st October 2022 and consented to participate in said study.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Age 18-40 BMI ≥ 25 kg/m 2 Agreeing to participate in the study Not having a diagnosed chronic disease To be able to ambulate To be cooperative

Exclusion criteria

Exclusion Criteria:

  • Receiving medical treatment
  • Secondary obesity (hypothyroidism, Cushing\'s disease, etc.)
  • Chronic disease (cardiovascular diseases, pulmonary diseases, presence of diabetes mellitus, liver diseases, renal diseases)
  • Having hyperlipidaemia under treatment
  • Cancer
  • Pregnancy or breastfeeding
  • Psychiatric disorder
  • Orthopaedic or neurological disease that may prevent walking
  • Are currently taking weight loss medication or enrolled in another weight loss program
  • Having previously undergone obesity surgery or having surgery planned during the study period
05

Study design

Observational model
Case-crossover
Time perspective
Prospective
Enrollment
165 participants (actual)
Patient registry
No

Groups and cohorts

  • Intervention group

    They were given a calorie-restricted diet and exercise plan by a dietician or physiotherapist at their first visit, and were followed up by telephone calls at weeks 2, 4, 6, 8 and 10 over 12 weeks.

    Behavioral: intensive lifestyle

  • Control-1 group

    During the initial medical interview, the participants were given a calorie-restricted diet programme by a dietician and an exercise programme by a physiotherapist; they were followed up over 12 weeks with telephone calls at week 4.

    Behavioral: intensive lifestyle

  • Control-2 group

    The participants were not provided with any programme, and the importance of weight loss was emphasised by the family physicians. Dietary and physical activity advice was given according to the recommendations in the Turkish Endocrine and Metabolism Association 2019 Obesity Diagnosis and Treatment Guide, and was followed up with phone calls at weeks 2, 4, 6, 8 and 10 over a 12-weeks.

Interventions

  • Behavioralintensive lifestyle

    INTENSIVE LIFESTYLE INTERVENTIONS

06

What researchers measure

Primary outcomes

  1. Primary Outcome

    Turkish version of the Impact of Weight on Quality of Life-Lite Version (IWQOL) scale was used. The scale has a minimum score of 0 and a maximum of 100. The scoring system is valid for both the scale subgroups and the scale total score. Based on the scale scoring, quality-of-life decreases as the score decreases.

    Time frame: 3 months

Secondary outcomes

  1. Secondary

    Comparing the anthropometric measurements of the three groups at baseline and week 12.

    Time frame: 3 months

  2. BMI (kg/m2)

    Comparing the BMI of the three groups at baseline and week 12.

    Time frame: 3 months

  3. Waist Circumference (cm)

    Comparing the Waist Circumference measurements of the three groups at baseline and week 12.

    Time frame: 3 months

  4. Lipid Profile

    Lipid profile of the three groups at baseline and week 12.

    Time frame: 3 months

07

Results

Posted Feb 4, 2025
Limitations and caveats
Yet, the three-month follow-up might not sufficiently capture lifestyle intervention impacts. Challenges in reaching participants during telephone follow-ups led to exclusions, potentially influencing the study's completeness.

Participant flow

The study's participants comprised of individuals with overweight and obese who made applications between the dates of 25th January 2022 and 1st October 2022 to the Department of Family Medicine.

Participant flow — Overall Study
MilestoneIntervention GroupControl-1 GroupControl-2 Group
Started555654
Completed515151
Not completed453

Outcome measures

PrimaryPrimary Outcome

Turkish version of the Impact of Weight on Quality of Life-Lite Version (IWQOL) scale was used. The scale has a minimum score of 0 and a maximum of 100. The scoring system is valid for both the scale subgroups and the scale total score. Based on the scale scoring, quality-of-life decreases as the score decreases.

Time frame:
3 months
Reported as:
Median · score on a scale
Primary Outcome
score on a scaleIntervention GroupControl-1 GroupControl-2 Group
Physical function (baseline)68.18 (0 to 93.18)68.18 (4.55 to 97.73)70.45 (9.09 to 100)
Self-esteem (baseline)50 (0 to 100)57.14 (0 to 96.43)50 (0 to 100)
Sexual life (baseline)75 (0 to 100)87.50 (0 to 100)81.25 (0 to 100)
Public distress (baseline)90 (15 to 100)85 (10 to 100)85 (0 to 100)
Work (baseline)75 (0 to 100)87.50 (0 to 100)87.50 (0 to 100)
Total Score (baseline)63.79 (16.38 to 95.69)73.28 (28.45 to 93.97)69.83 (18.97 to 99.14)
Physical function (3 months)79.54 (0 to 100)77.27 (22.73 to 100)84.09 (0 to 100)
Self-esteem (3 months)75 (0 to 100)82.14 (0 to 100)60.71 (3.57 to 100)
Sexual life (3 months)87.50 (0 to 100)93.75 (25 to 100)93.75 (0 to 100)
Public distress (3 months)90 (0 to 100)95 (30 to 100)90 (0 to 100)
Work (3 months)87.50 (0 to 100)87.50 (12.50 to 100)87.50 (0 to 100)
Total Score (3 months)81.90 (0 to 100)82.76 (33.62 to 100)81.03 (24.14 to 100)
Statistical analysis
  • Intervention Group vs Control-1 Group · Wilcoxon (Mann-Whitney) · p = 0.24A significance level of p\<0.05 was used for all analyses.
  • Intervention Group vs Control-2 Group · Wilcoxon (Mann-Whitney) · p = 0.001A significance level of p\<0.05 was used for all analyses
  • Control-1 Group vs Control-2 Group · Wilcoxon (Mann-Whitney) · p = 0.03A significance level of p\<0.05 was used for all analyses
  • Intervention Group vs Control-1 Group vs Control-2 Group · Kruskal-Wallis · p = 0.003A significance level of p\<0.05 was used for all analyses
SecondarySecondary

Comparing the anthropometric measurements of the three groups at baseline and week 12.

Time frame:
3 months
Reported as:
Median · kg
Secondary
kgIntervention GroupControl-1 GroupControl-2 Group
Weight (kg) (Baseline)89.50 (66.10 to 125.80)84.50 (61.90 to 135)85.10 (64.20 to 108.40)
Fat mass (kg) (Baseline)33.50 (13 to 63.60)28.70 (17.20 to 48.80)26.80 (11.30 to 51.50)
Fat free mass (kg) (Baseline)52.80 (43.10 to 83.30)50 (41.70 to 89.20)53.40 (40.70 to 78.60)
Weight (kg) (3 months)88 (65.60 to 128.60)79.90 (58.80 to 135)84 (62.30 to 108.40)
Fat mass (kg) (3 months)31.10 (13 to 64.20)28.80 (11.40 to 47.50)25.20 (5 to 51.50)
Fat free mass (kg)(3 months)51.90 (43.40 to 82)48.50 (37.10 to 89.20)53.80 (41.90 to 75.30)
Statistical analysis
  • Intervention Group vs Control-1 Group vs Control-2 Group · Kruskal-Wallis · p = 0.08A significance level of p\<0.05 was used for all analyses
SecondaryBMI (kg/m2)

Comparing the BMI of the three groups at baseline and week 12.

Time frame:
3 months
Reported as:
Median · kg/m2
BMI (kg/m2)
kg/m2Intervention GroupControl-1 GroupControl-2 Group
BMI (kg/m2) (Baseline)31.50 (25 to 47.30)30.50 (25.30 to 43.20)29.70 (25 to 42.30)
BMI (kg/m2) (3 months)30.60 (24.30 to 48.40)29.50 (23 to 42.80)29.20 (24.80 to 42.30)
Statistical analysis
  • Intervention Group vs Control-1 Group vs Control-2 Group · Kruskal-Wallis · p = 0.13A significance level of p\<0.05 was used for all analyses
SecondaryWaist Circumference (cm)

Comparing the Waist Circumference measurements of the three groups at baseline and week 12.

Time frame:
3 months
Reported as:
Median · cm
Waist Circumference (cm)
cmIntervention GroupControl-1 GroupControl-2 Group
Waist circumference (cm) (Baseline)106 (85.50 to 140)101.50 (77 to 158)101 (86 to 132)
Waist circumference (cm) (3 months)102 (80 to 141)100 (70 to 158)100 (80.80 to 132)
Statistical analysis
  • Intervention Group vs Control-1 Group vs Control-2 Group · Kruskal-Wallis · p = 0.63A significance level of p\<0.05 was used for all analyses
SecondaryLipid Profile

Lipid profile of the three groups at baseline and week 12.

Time frame:
3 months
Reported as:
Median · mg/dL
Lipid Profile
mg/dLIntervention GroupControl-1 GroupControl-2 Group
Triglyceride (Baseline)105 (35 to 375)110 (39 to 231)94 (50 to 335)
Total cholesterol (Baseline)188 (141 to 266)193 (131 to 284)181 (99 to 315)
LDL cholesterol (Baseline)121 (68 to 180)120 (71 to 181)126 (74 to 231)
HDL cholesterol (Baseline)45 (30 to 84)50 (31 to 90)46 (28 to 69)
Triglyceride (3 months)100 (36 to 503)98 (45 to 230)96 (49 to 657)
Total cholesterol (3 months)189 (120 to 282)189 (111 to 256)173 (105 to 324)
LDL cholesterol (3 months)128 (70 to 193)125 (81 to 174)129 (88 to 258)
HDL cholesterol (3 months)50 (33 to 87)48 (31 to 88)48 (27 to 67)
Statistical analysis
  • Intervention Group vs Control-1 Group vs Control-2 Group · Kruskal-Wallis · p = 0.89A significance level of p\<0.05 was used for all analyses

Adverse events

Collected over All-Cause Mortality, Serious, and Other (Not Including Serious) Adverse Events were not monitored.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Intervention Group———
Control-1 Group———
Control-2 Group———

Baseline characteristics

It is identical to the assignment in Participant Flow or information about how participants contribute units.In the single-blind trial, patients were assigned to groups based on the order of admission. Randomization was performed using the blocked randomization technique with six blocks determined.

Age, Categorical
Age, Categorical(Participants)Intervention GroupControl-1 GroupControl-2 GroupTotal
<=18 years0000
Between 18 and 65 years515151153
>=65 years0000
Sex: Female, Male
Sex: Female, Male(Participants)Intervention GroupControl-1 GroupControl-2 GroupTotal
Female383435107
Male13171646
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Intervention GroupControl-1 GroupControl-2 GroupTotal
Count of participants———0
Body Mass Index (kg/m2)
Body Mass Index (kg/m2)(Participants)Intervention GroupControl-1 GroupControl-2 GroupTotal
Overweight (BMI greater than or equal to 25)13232763
Obese (BMI greater than or equal to 30)38282490
08

Study locations

1 site
  • Hacettepe University
    Ankara, Turkey (Türkiye)
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Jan 25, 2022
  • Informed consent form · Jan 25, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06321809
Lead sponsor
Duygu Ayhan Baser
Responsible party
Duygu Ayhan Baser (Assoc Prof, Hacettepe University) — Sponsor-investigator
First posted
Mar 20, 2024
Start date
Jan 25, 2022
Primary completion
Oct 1, 2022
Completion
Dec 1, 2022
Results posted
Feb 4, 2025
Last update
Feb 4, 2025

Study contacts

Duygu Ayhan Baser, Assoc. Prof.
study director · Hacettepe University
Dilara Canbay Ozdemir, M.D.
principal investigator · Hacettepe University
İzzet Fidanci, Assoc. Prof.
principal investigator · Hacettepe University
Arzu Demircioglu Karagoz
principal investigator · Hacettepe University
Merve Ozdemir
principal investigator · Afyonkarahisar Health Sciences University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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