CClinicalTrials.gg
CompletedNCT04733612Updated Feb 2, 2021

The Effects of Short Message Notifications on Middle-Aged Diabetic Patients

An interventional study of Informative messages in Type2 Diabetes Mellitus, sponsored by Istanbul University. Completed. Open to participants aged 40 Years to 64 Years. Per ClinicalTrials.gov, last updated 2021-02-02.

Sponsored by Istanbul University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 4 years 6 months after the study started (first participant enrolled Jun 2016, registered Jan 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
125
Allocation
Randomized
Ages
40 Years to 64 Years
Sex
All
01

Study summary

The objective of our study was to assess awareness-raising of medication adherence (MA), physical activity (PA), fasting blood glucose (FBG), and glycated hemoglobin A (HbA1c) values by providing information on diabetes via short message (SMS) technology.

Read the detailed description

The study investigates T2DM patients who have not had surgery or cardiac event in the last 3 months, between the ages of 40 and 64 years, with T2DM diagnosis between the last 1 and 10 years and oral antidiabetic therapy for at least 1 The study design is a single-blinded randomized, controlled study, and was conducted in the Diabetes Polyclinic of the Istanbul University Medical Faculty Hospital.

Patients randomly assigned to the intervention group, in addition to traditional treatment received three to four informative SMS messages per week during the 6-month period, while the control group was followed in accordance with the traditional treatment schedule.

02

Conditions studied

  • Type2 Diabetes Mellitus

Keywords

  • Diabetes mellitus
  • Public health
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 125 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Istanbul University is the lead sponsor of 496 studies on the registry; 79 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

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

04

Who can participate

Ages eligible
40 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Clinical diagnosis of Type 2 Diabetes Mellitus (T2DM) between the last 1 and 10 years
  • Being aged between 40 and 64 years old,
  • Is treated for a minimum of 1 year with at least one oral antidiabetic drug.

Exclusion criteria

Exclusion Criteria:

  • Clinical diagnosis of T2DM for less than 1 year or more than 10 years.
  • Those who have had surgery or a cardiac event in the last 3 months or during the investigation.
  • Those under 40 and over 64 years of age.
  • Patients with T2DM that have not been treated with oral antidiabetic medication.
  • Volunteers who once did not participate in the control examinations in both groups were excluded from the evaluation.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
125 participants (actual)

Study arms

  • Experimental
    SMS Group

    In addition to traditional treatment received three to four informative SMS messages per week during the 6-month period

    Other: Informative messages

  • No intervention
    Control Group

    Followed in accordance with the traditional treatment schedule

Interventions

  • OtherInformative messages

    In addition to their standard treatments, an informative SMS (text message) on diabetes was sent to the intervention group three to four times a week for six months. The short messages were in the form of a short sentence for the subject and the predicate. The messages sent have been prepared in such a way that they do not exceed 1 SMS quota and are less than 160 characters on mobile phones.

06

What researchers measure

Primary outcomes

  1. Fasting blood glucose

    After 8 hours of fasting in the morning, venous whole blood samples were taken to yellow capped tubes for fasting blood glucose (mmol/dL).

    Time frame: Beginning

  2. Change from Baseline Fasting blood glucose at 3 months

    After 8 hours of fasting in the morning, venous whole blood samples were taken to yellow capped tubes for fasting blood glucose (mmol/dL).

    Time frame: 3 months after beginning

  3. Change from Baseline Fasting blood glucose at 6 months

    After 8 hours of fasting in the morning, venous whole blood samples were taken to yellow capped tubes for fasting blood glucose (mmol/dL).

    Time frame: 6 months after beginning

  4. Glycated hemoglobin A (HbA1c)

    In the HbA1c evaluation (%), after 8 hours of fasting by volunteers, venous whole blood samples were taken in purple tubes (EDTA) between 08:00 and 10:00 a.m. and evaluated by the HPLC method.

    Time frame: Beginning

  5. Change from Baseline of Glycated hemoglobin A (HbA1c) at 3 months

    In the HbA1c evaluation (%), after 8 hours of fasting by volunteers, venous whole blood samples were taken in purple tubes (EDTA) between 08:00 and 10:00 a.m. and evaluated by the HPLC method

    Time frame: 3 months after beginning

  6. Change from Baseline of Glycated hemoglobin A (HbA1c) at 6 months

    In the HbA1c evaluation (%), after 8 hours of fasting by volunteers, venous whole blood samples were taken in purple tubes (EDTA) between 08:00 and 10:00 a.m. and evaluated by the HPLC method

    Time frame: 6 months after beginning

  7. Physical Activity level

    The International Physical Activity Questionnaire (IPAQ) was used to evaluate the physical activity level of the participants at the beginning of the study. This measure assesses the types of intensity of physical activity and sitting time that people do as part of their daily lives are considered to estimate total physical activity in MET-min/week and time spent sitting. The higher scores mean a better outcome.

    Time frame: Beginning

  8. Change from Baseline Physical Activity at 3 months

    The International Physical Activity Questionnaire (IPAQ) was used to evaluate the physical activity level of the participants at at 3 months after the beginning of the study. This measure assesses the types of intensity of physical activity and sitting time that people do as part of their daily lives are considered to estimate total physical activity in MET-min/week and time spent sitting. The higher scores mean a better outcome.

    Time frame: 3 months from beginning

  9. Change from Baseline Physical Activity at 6 months

    The International Physical Activity Questionnaire (IPAQ) was used to evaluate the change in physical activity level of the participants at at 6 months after the beginning of the study. This measure assesses the types of intensity of physical activity and sitting time that people do as part of their daily lives are considered to estimate total physical activity in MET-min/week and time spent sitting. The higher scores mean a better outcome.

    Time frame: 6 months from beginning

  10. Drug Adherence

    The Morisky Medication Adherence Scale (MMAS-8) was used to assess the compliance of patients with drug treatment. If the patient scores higher on the scale, they will be assessed as more adherent. If they score lower on the scale, they are presumed to be struggling with non-adherence.

    Time frame: Beginning

  11. Change from Baseline Drug Adherence at 3 months

    The Morisky Medication Adherence Scale was used to assess the compliance of patients with drug treatment. If the patient scores higher on the scale, they will be assessed as more adherent. If they score lower on the scale, they are presumed to be struggling with non-adherence.

    Time frame: 3 months after beginning

  12. Change from Baseline Drug Adherence at 6 months

    The Morisky Medication Adherence Scale (MMAS-8) was used to assess the compliance of patients with drug treatment. If the patient scores higher on the scale, they will be assessed as more adherent. If they score lower on the scale, they are presumed to be struggling with non-adherence.

    Time frame: 6 months after beginning

  13. Quality of Life Assessed by SF-36v2

    The Short-Form Health Survey (SF-36v2) is used to asses the quality of life of volunteers'. It has 36 items grouped in 8 dimensions: physical functioning, physical and emotional limitations, social functioning, bodily pain, general and mental health. The higher scores mean a better outcome.

    Time frame: Beginning

  14. Change from Baseline Quality of Life Assessed by SF-36v2 at 3 months

    The Short-Form Health Survey (SF-36v2) is used to asses the quality of life of volunteers'. It has 36 items grouped in 8 dimensions: physical functioning, physical and emotional limitations, social functioning, bodily pain, general and mental health. The higher scores mean a better outcome.

    Time frame: 3 months after beginning

  15. Change from Baseline Quality of Life Assessed by SF-36v2 at 6 months

    The Short-Form Health Survey (SF-36v2) is used to asses the quality of life of volunteers'. It has 36 items grouped in 8 dimensions: physical functioning, physical and emotional limitations, social functioning, bodily pain, general and mental health. The higher scores mean a better outcome.

    Time frame: 6 months after beginning

Secondary outcomes

  1. Baseline blood pressure

    The volunteers' systolic and diastolic blood pressure (mmHg) was measured by a physician through a manual cuff and stethoscope after sitting for at least 5 minutes, from the left arm at the level of the heart, as suggested in the literature.

    Time frame: Beginning

  2. Change from Baseline blood pressure at 3 months

    The volunteers' systolic and diastolic blood pressure (mmHg) was measured by a physician through a manual cuff and stethoscope after sitting for at least 5 minutes, from the left arm at the level of the heart, as suggested in the literature.

    Time frame: 3 months after beginning

  3. Change from Baseline blood pressure at 6 months

    The volunteers' systolic and diastolic blood pressure (mmHg) was measured by a physician through a manual cuff and stethoscope after sitting for at least 5 minutes, from the left arm at the level of the heart, as suggested in the literature.

    Time frame: 6 months after beginning

  4. Baseline heart rate

    The volunteers' heart rate count was measured by a finger-type pulse oximeter, from the index finger of the right or left hand after resting for at least 5 minutes.

    Time frame: Beginning

  5. Change from Baseline heart rate at 3 months

    The volunteers' heart rate count was measured by a finger-type pulse oximeter, from the index finger of the right or left hand after resting for at least 5 minutes.

    Time frame: 3 Months After Beginning

  6. Change from Baseline heart rate at 6 months

    The volunteers' heart rate count was measured by a finger-type pulse oximeter, from the index finger of the right or left hand after resting for at least 5 minutes.

    Time frame: 6 Months After Beginning

  7. Baseline Body Mass Index

    The height (cm) of the volunteers was obtained in the morning, after 8 hours of fasting, without shoes, standing upright, by measuring the distance from the top of the head to the floor with a calibrated stadiometer. Body weight (kg) were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer. Body Mass Index (BMI) is calculated using a person's height and weight as shown in formula: BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meter square.

    Time frame: Beginning

  8. Change from Baseline Body Mass Index at 3 months

    The height (cm) of the volunteers was obtained in the morning, after 8 hours of fasting, without shoes, standing upright, by measuring the distance from the top of the head to the floor with a calibrated stadiometer. Body weight (kg) were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer. Body Mass Index (BMI) is calculated using a person's height and weight as shown in formula: BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meter square.

    Time frame: 3 months after Beginning

  9. Change from Baseline Body Mass Index at 6 months

    The height (cm) of the volunteers was obtained in the morning, after 8 hours of fasting, without shoes, standing upright, by measuring the distance from the top of the head to the floor with a calibrated stadiometer. Body weight (kg) were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer. Body Mass Index (BMI) is calculated using a person's height and weight as shown in formula: BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meter square.

    Time frame: 6 months after Beginning

  10. Baseline body fat ratios

    The body fat ratios were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer.

    Time frame: Beginning

  11. Change from Baseline Body Fat Ratios at 3 Months

    The body fat ratios were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer.

    Time frame: 3 Months After Beginning

  12. Change from Baseline Body Fat Ratios at 6 Months

    The body fat ratios were measured in the morning after 8 hours of fasting, with light clothing and bare feet, with a calibrated and valid 'Tanita Body Composition Analyzer TBF-410GS' brand bioelectrical impedance analyzer.

    Time frame: 6 Months After Beginning

  13. Baseline waist/hip ratio

    The volunteers waist and hip circumference and waist/hip ratio were measured by tape measure after 8 hours of fasting in the morning with thin clothes on them. Waist circumference (cm) was measured at the level of the umbilicus and hip circumference (cm) at the level of the femur trochanter major. Waist/hip ratio (WHR) were were calculated as follows waist/hip ratio= waist circumference / hip circumference

    Time frame: Beginning

  14. Change from Baseline waist/hip ratio at 3 Months

    The volunteers waist and hip circumference and waist/hip ratio were measured by tape measure after 8 hours of fasting in the morning with thin clothes on them. Waist circumference (cm) was measured at the level of the umbilicus and hip circumference (cm) at the level of the femur trochanter major. Waist/hip ratio (WHR) were were calculated as follows waist/hip ratio= waist circumference / hip circumference

    Time frame: 3 Months after Beginning

  15. Baseline Diet and Nutritional Habits

    The last three days' food intake form is used to collect the information about daily nutritional habits of volunteers'. The amount of food and the frequency are marked.

    Time frame: Beginning

  16. Change from Baseline Diet and Nutritional Habits at 3 months

    The last three days' food intake form is used to collect the information about daily nutritional habits of volunteers'. The amount of food and the frequency are marked.

    Time frame: 3 Months after Beginning

  17. Change from Baseline Diet and Nutritional Habits at 6 months

    The last three days' food intake form is used to collect the information about daily nutritional habits of volunteers'. The amount of food and the frequency are marked.

    Time frame: 6 Months after Beginning

  18. Baseline Energy Intake

    From the last three days' food intake form the average calories (kcal) of macro and micronutrients are calculated.

    Time frame: Beginning

  19. Change from Baseline Energy Intake at 3 months

    From the last three days' food intake form the average calories (kcal) of macro and micronutrients are calculated.

    Time frame: 3 months after Beginning

  20. Change from Baseline Energy Intake at 6 months

    From the last three days' food intake form the average calories (kcal) of macro and micronutrients are calculated.

    Time frame: 6 months after Beginning

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Tahirbegolli B, Tahirbegolli IA, Cakmak R, Idiz C, Cavdar S, Bagdemir E, Vehid S. Effects of Short-message Notifications on Type 2 Diabetes Management in Middle-aged Turkish Patients: A Randomized Trial. Balkan Med J. 2022 Mar 14;39(2):161-162. doi: 10.4274/balkanmedj.galenos.2021.2021-10-47. No abstract available. PubMed 35330570 ↗

Individual participant data

Plan to share: No — Since the start date of the study is before 18 January 2017, individual participant data (IPD) will only be available to other researchers on a reasonable request.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 2, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04733612
Lead sponsor
Istanbul University
Responsible party
Bernard Tahirbegolli (Principal Investigator, Istanbul University) — Principal investigator
First posted
Feb 2, 2021
Start date
Jun 30, 2016
Primary completion
Dec 20, 2017
Completion
Feb 26, 2018
Last update
Feb 2, 2021

Study contacts

Suphi Vehid, Prof. Dr.
study chair · Istanbul University

Oversight

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

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This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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