NCT01244646

Brief Summary

  1. 1.A prospective, non-interventional study, 125 patients with Diabetes Mellitus Type2 will be enrolled, who, while on metformin, have a sub-optimal glycemic control and who thus will receive additional treatment with a sulfonylurea (SU) derivative. At the start and at 3 and 6 months, during regular visits to the patient's General Practitioner, the patients will complete a series of questionnaires (Patient Reported Outcomes, PROs) directed at diabetes in general, at fear for hypoglycemia, at body weight, at treatment compliance and at general wellbeing. These PROs are the worry subscale of the Hypoglycaemic Fear Survey, Impact of Weight on Quality of Life, revised Diabetes Symptom Checklist, Problem Areas In Diabetes, EuroQol EQ-5D and Medication Adherence Report Scale. In total 75 questions. The frequency of hypoglycemic symptoms, incidence of hypoglycemic events and body weight changes will be assessed and the level of adherence to treatment will be investigated.
  2. 2.Diabetic patients, M/F, aged \>35, metformin treated, serum HbA1c ≥7.0% (within last month), informed consent provided, in whom a SU therapy is added. Patients with Type 1 diabetes and with secondary diabetes will be excluded, and patients unable to understand and complete the questionnaires.
  3. 3.Primary outcome variables are outcomes from HFS-w and IWQOL in relation to the frequency of hypoglycemic symptoms and body weight at 6 months and to weight change from 0 to 6 months. Secondary outcome variables are the other PROs. The frequency of hypoglycemic symptoms, incidence of hypoglycemic events, changes in body weight and level of compliance will be addressed.
  4. 4.The Intention To Treat analysis will be used, with Last Value Extended Forward from 3 to 6 months in case of withdrawal after 3 months. Changes in outcome variables will be analysed by modelling time and potential dummy variables in a Generalized Estimating Equations analysis.
  5. 5.Secondary, outcomes in HFS-w and IWQOL are compared with self-reported hypoglycemic symptoms, incidence of hypoglycemic events, body weight and change in body weight from 0 to 6 months. Changes in all PRO's from 0 to 3 and 6 months, potential relationships between (changes in) the different questionnaires, such as with hypoglycemia symptoms, weight (changes) and treatment compliance will be evaluated. A search is done for baseline characteristics which predict outcomes and changes in PRO's, hypoglycemic symptoms, hypoglycemic events and weight changes.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
48

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2010

Geographic Reach
1 country

22 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 18, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

November 19, 2010

Completed
12 days until next milestone

Study Start

First participant enrolled

December 1, 2010

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2012

Completed
Last Updated

December 6, 2012

Status Verified

December 1, 2012

Enrollment Period

1.7 years

First QC Date

November 18, 2010

Last Update Submit

December 5, 2012

Conditions

Keywords

Diabetes MellitusType 2DMT2T2DMmetforminsulfonylureahypoglycemiaweightquality of lifecompliance

Outcome Measures

Primary Outcomes (6)

  • Hypoglycemic Fear Survey (HFS) questionnaire

    0 months

  • Hypoglycemic Fear Survey (HFS) questionnaire

    3 months

  • Hypoglycemic Fear Survey (HFS) questionnaire

    6 months

  • Impact of Weight on Quality of Life (IWQOL-Lite) questionnaire

    0 months

  • Impact of Weight on Quality of Life (IWQOL-Lite) questionnaire

    3 months

  • Impact of Weight on Quality of Life (IWQOL-Lite) questionnaire

    6 months

Secondary Outcomes (9)

  • Diabetes Symptom Checklist (DSC-R) questionnaire,

    0 months

  • Diabetes Symptom Checklist (DSC-R) questionnaire,

    3 months

  • Diabetes Symptom Checklist (DSC-R) questionnaire,

    6 months

  • Medication Adherence Report Scale (MARS-5) questionnaire

    0 months

  • Medication Adherence Report Scale (MARS-5) questionnaire

    3 months

  • +4 more secondary outcomes

Study Arms (1)

1

Patients with Diabetes Mellitus Type 2

Eligibility Criteria

Age35 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

General practitioners, group practices in primary care, pharmacists

You may qualify if:

  • Diabetes Mellitus Type 2 for \> 6 months on treatment with only metformin for \>4 weeks
  • HbA1c value \>7.0 and therefore a sulfonylurea derivative is added
  • Able to complete a series of questionnaires

You may not qualify if:

  • Concomitant treatment with an other antidiabetic than metformin and SU derivative
  • Contraindications for the use of metformin or SU derivative
  • Concomitant diseases which may affect the patient's ability to complete study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (22)

Research Site

Alkmaar, Netherlands

Location

Research Site

Edam, Netherlands

Location

Research Site

Gorinchem, Netherlands

Location

Research Site

Heerhugowaard, Netherlands

Location

Research Site

Heiloo, Netherlands

Location

Research Site

Hoogvliet, Netherlands

Location

Research Site

Lichtenvoorde, Netherlands

Location

Research Site

Limmen, Netherlands

Location

Research Site

Maasbracht, Netherlands

Location

Research Site

Noord-Scharwoude, Netherlands

Location

Research Site

Poortvliet, Netherlands

Location

Research Site

Rotterdam, Netherlands

Location

Research Site

Spijkenisse, Netherlands

Location

Research Site

The Hague, Netherlands

Location

Research Site

Tuitjenhorn, Netherlands

Location

Research Site

Vaassen, Netherlands

Location

Research Site

Valkenswaard, Netherlands

Location

Research Site

Voerendaal, Netherlands

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Research Site

Volendam, Netherlands

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Research Site

Wamel, Netherlands

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Research Site

Zuid-Scharwoude, Netherlands

Location

Research Site

Zutphen, Netherlands

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 2Diabetes MellitusHypoglycemiaBody WeightPatient Compliance

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsPatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Prof. F.J. Snoek, PhD

    VU University of Amsterdam

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 18, 2010

First Posted

November 19, 2010

Study Start

December 1, 2010

Primary Completion

August 1, 2012

Study Completion

August 1, 2012

Last Updated

December 6, 2012

Record last verified: 2012-12

Locations