ISRCTN ISRCTN29335793
DOI https://doi.org/10.1186/ISRCTN29335793
Secondary identifying numbers N/A
Submission date
19/07/2006
Registration date
19/07/2006
Last edited
19/07/2006
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr M.J.P. Avendonk, van
Scientific

University Medical Center Utrecht (UMCU)
Julius Center for Health Sciences and Primary Care
Stratenum 6.131
P.O. Box 85500
Utrecht
3508 GA
Netherlands

Phone +31 (0)30 2538608
Email m.j.p.vanavendonk@umcutrecht.nl

Study information

Study designRandomised controlled, parallel group trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Scientific title
Study acronymDIASULIN
Study objectivesContinuing sulfonylurea in patients without good glycaemic control and using insulin and metformin, will diminish insulin secretion of beta-cells, less than discontinuing sulfonylurea in these patients.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedDiabetes mellitus type 2 (DM type II)
InterventionContinuing sulfonylurea with a combination of metformin and insulin glargine versus discontinuing sulfonylurea with this combination.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Metformin, sulfonylurea, insulin glargine
Primary outcome measureDifference between the two groups in the remaining insulin secretion of the beta-cells, assessed by differences in Homeostasis Model Assessment (HOMA)-beta and in fasting C-peptide.
Secondary outcome measures1. Difference in mean daily dosage of insulin glargine in order to reach good glycaemic control (HbA1c <= 7.0%)
2. Percentage of patients with good glycaemic control after 12 months
3. Percentage of patients with good glycaemic control at several intervals within 12 months
4. Frequency of serious and of nocturnal hypoglycaemic episodes
5. Waist circumference
6. Quality of life
7. Patients' treatment satisfaction
Overall study start date01/04/2006
Completion date01/04/2007

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants200
Key inclusion criteria1. Type 2 diabetes patients, male and female, insulin naive, without good glycaemic control for at least three months despite combination of metformin and sulfonylurea therapy and who are referred for insulin therapy by their general practitioner (GP)
2. Aged 40-75 years
3. Haemoglobin HbA1c (HbA1c) >=7.5%
Key exclusion criteria1. Type 1 diabetes
2. C-peptide <0.50 nmol/l
3. Liver (aspartate aminotransferase [AST] or alanine aminotransferase [ALT] >2 times upper limit of normal) and/or kidney (creatinine >135 in male patients, >110 in female patients) problems
4. Patients who do not read Dutch well enough to answer questionnaires
5. Pregnancy or lactation
6. Amputated leg or arm
7. Intercurrent disease at the discretion of the investigator
8. Short life expectancy
9. Contraindications or intolerancy to metformin, sulfonylurea or insulin glargine
Date of first enrolment01/04/2006
Date of final enrolment01/04/2007

Locations

Countries of recruitment

  • Netherlands

Study participating centre

University Medical Center Utrecht (UMCU)
Utrecht
3508 GA
Netherlands

Sponsor information

Stichting Julius Research (The Netherlands)
Research organisation

P.O. Box 85500
Utrecht
3508 GA
Netherlands

Phone +31 (0)30 2509358
Email juliuscenter@azu.nl
ROR logo "ROR" https://ror.org/0575yy874

Funders

Funder type

Industry

Sanofi-Aventis

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan