CClinicalTrials.gg
CompletedNCT03881540Updated Mar 22, 2019

Efficacy of tDNA Care on Weight Loss and Metabolic Outcomes in Patients With Overweight, Obesity and Type 2 Diabetes

An interventional study of tDNA-MI group and tDNA-CC group in Diabetes and Obesity, sponsored by International Medical University. Completed at 1 site in Malaysia. Open to participants aged 30 Years to 65 Years. Per ClinicalTrials.gov, last updated 2019-03-22.

Sponsored by International Medical University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 4 years 9 months after the study started (first participant enrolled Jun 2014, registered Mar 2019).
Phase
Not applicable
Study type
Interventional
Enrollment
230
Allocation
Randomized
Ages
30 Years to 65 Years
Sex
All
01

Study summary

The aim of this study was to investigate the effectiveness of structured lifestyle intervention following a transcultural diabetes nutrition algorithm (tDNA) care compared to usual diabetes care in patients with overweight, obesity and type 2 diabetes (T2D), receiving either the motivational interviewing counseling or conventional counselling technique in an outpatient clinic setting.

The hypothesis is weight loss and glycated haemoglobin (A1C) level will be improved in patients following the tDNA care compared to usual diabetes care and the improvements will be greater in those receiving motivational interviewing counseling than conventional counselling.

Read the detailed description

The main objective of this study was to investigate the effectiveness of structured lifestyle intervention following a transcultural diabetes nutrition algorithm (tDNA) care compared to usual diabetes care in patients with overweight, obesity and type 2 diabetes (T2D), receiving either the motivational interviewing counseling or conventional counseling technique in an outpatient clinic setting.

The specific objectives are:

  1. To compare changes in the primary outcomes (weight, body mass index and A1C) in patients receiving structured lifestyle intervention based on tDNA care compared to usual diabetes care in addition to receiving either the motivational interviewing counseling or conventional counselling techniques at baseline, 6 months and 12 months of intervention.
  2. To compare changes in the secondary outcomes (waist circumference, percentage body fat, fasting plasma glucose, lipid profile, high sensitivity-C-Reactive Protein and blood pressure) in patients receiving structured lifestyle intervention based on tDNA care compared to usual diabetes care in addition to receiving either the motivational interviewing counseling or conventional counselling techniques at baseline, and 6 months of intervention.
  3. To compare the changes in dietary intake, Weight Efficacy Lifestyle, exercise and physical activity in patients receiving structured lifestyle intervention based on tDNA care compared to usual diabetes care in addition to receiving either the motivational interviewing counseling or conventional counselling techniques at baseline, 6 months and 12 months of intervention.

Study Design: This is a prospective open-label randomized clinical trial conducted in patients with overweight, obesity and T2D in an outpatient clinic setting.

Study duration: This study was conducted for a period of 12 months consisting of 6 months of intervention phase followed by subsequent 6 months of follow up phase.

02

Conditions studied

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 230 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

International Medical University is the lead sponsor of 11 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
30 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Diagnosed with type 2 diabetes mellitus, requiring weight loss
  2. Treated with oral hypoglycaemic medications and/or lifestyle modifications
  3. Medications have been optimised with no changes in pharmacotherapy in the past three months
  4. Aged between 30 to 65 years
  5. BMI of >23 kg/m²
  6. A1C between 7% to 9%
  7. Failed to achieve HbA1c reduction in the past three months even after seeing a dietitian
  8. Willing to comply with study procedures.

Exclusion criteria

Exclusion Criteria:

  1. Patients whom weight loss might not be safe
  2. Patients diagnosed with type 1 diabetes mellitus and type 2 diabetes mellitus with basal or multiple insulin injections
  3. Patients with weight loss exceeding 5 kg in the past three months
  4. Patients with current use of medications/meal replacements for weight loss
  5. Patients with cancer requiring treatment for the past five years, except of non-melanoma skin cancers or cancers that have been clearly cured
  6. Patients with history of bariatric surgery, small bowel resection, or extensive bowel resection
  7. Patients with cardiovascular disease (heart attack or procedure within past three months or participation in cardiac rehabilitation program within last three months, stroke or history/treatment for transient ischaemic attacks in the past three months, or documented history of pulmonary embolus for the past six months)
  8. Patients receiving chronic treatment with systemic corticosteroids. Use of hormone replacement therapy or oral contraceptives will not lead to exclusion.
  9. Patients with renal disease with eGFR \<60 ml/min (based on MDRD) or currently receiving dialysis
  10. Patients with chronic alcoholism
  11. Patients who are currently pregnant or nursing
  12. Patients who plan to relocate where it does not permit full participation in the study.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
230 participants (actual)

Study arms

  • Active comparator
    tDNA-MI group

    Follow tDNA intervention and motivational interviewing counselling

    Other: tDNA-MI group

  • Active comparator
    tDNA-CC group

    Follow tDNA intervention and conventional counselling

    Other: tDNA-CC group

  • Other
    UC group

    Follow a conventional diet with standard diabetes support and lifestyle education

    Other: UC group

Interventions

  • OthertDNA-MI group

    tDNA care with structured low calorie meal plan of 1200-1500 kcal/day with conventional foods + 1-2 serving of diabetes specific meal replacements and motivational interviewing counseling. .

  • OthertDNA-CC group

    tDNA care with structured low calorie meal plan of 1200-1500 kcal/day with conventional foods + 1-2 serving of diabetes specific meal replacements+ 150 min/week of moderate intensity exercise + and conventional counselling.

  • OtherUC group

    Meal plan of 1200-1500 kcal/day using conventional foods + 150 min/week of moderate intensity exercise + and conventional counselling

06

What researchers measure

Primary outcomes

  1. Change in Weight

    Anthropometry

    Time frame: 6 months, 12 months

  2. Change in Glycated haemoglobin (A1C)

    Biochemical measure

    Time frame: 6 months, 12 months

Secondary outcomes

  1. Change in percentage body fat

    Body composition

    Time frame: 6 months

  2. Change in fasting blood glucose

    Biochemical measure

    Time frame: 6 months

  3. Change in total cholesterol, LDL-C and HDL-C

    Biochemical measure

    Time frame: 6 months

  4. Change in High sensitivity C-Reactive Protein (HsCRP)

    Biochemical measure

    Time frame: 6 months

  5. Change in systolic and diastolic blood pressure

    Metabolic outcome

    Time frame: 6 months

  6. Change in energy intake and macronutrients

    Dietary intake

    Time frame: 6 months, 12 months

  7. Change in Weight Efficacy Lifestyle (WEL) scores

    Eating self efficacy scores ranging from total scores of 0-180, subscales of 0-36. Total scores is a sum of subscales. Higher scores are better.

    Time frame: 6 months, 12 months

  8. Change in exercise minutes

    Exercise

    Time frame: 6 months, 12 months

07

Study locations

1 site
  • International Medical University
    Kuala Lumpur, 57000, Malaysia
08

References and documents

Publications

  • Gilcharan Singh HK, Chee WSS, Hamdy O, Mechanick JI, Lee VKM, Barua A, Mohd Ali SZ, Hussein Z. Eating self-efficacy changes in individuals with type 2 diabetes following a structured lifestyle intervention based on the transcultural Diabetes Nutrition Algorithm (tDNA): A secondary analysis of a randomized controlled trial. PLoS One. 2020 Nov 30;15(11):e0242487. doi: 10.1371/journal.pone.0242487. eCollection 2020. PubMed 33253259 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 22, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03881540
Lead sponsor
International Medical University
Responsible party
Winnie Chee (Principal Investigator, International Medical University) — Principal investigator
First posted
Mar 19, 2019
Start date
Jun 2014
Primary completion
Dec 2015
Completion
Dec 2015
Last update
Mar 22, 2019

Study contacts

Winnie SS Chee, PhD
principal investigator · International Medical University

Oversight

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

Not currently enrolling

This study is completed, as verified in Mar 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion