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Vildagliptin Versus Liraglutide - Patient Preference After Receiving Both Medications

Phase 4
Completed
Conditions
Type 2 Diabetes
Interventions
Drug: Vildagliptin/ Metformin
Registration Number
NCT01518101
Lead Sponsor
Novartis Pharmaceuticals
Brief Summary

Dipeptidyl peptidase-4 (DPP-4) inhibitors and glucagonlike peptide-1 (GLP-1) mimetics or analogs, which rely on the gastrointestinal hormones that are part of the incretin system for the treatment of T2DM, provide a therapeutic alternative to common oral antihyperglycemic agents (eg, sulfonylureas, thiazolidinediones). Although GLP-1 analogs and DPP-4 inhibitor medications are effective, there are differences between these products, including method of administration (injectable versus oral). Previous studies have shown that patients prefer additional oral agents over injectable agents because of fear of injections and the desire to avoid them. Patient preference is both clinically and financially important, as it can have long-term implications in terms of patients' motivation and insight into their disease state and its treatment, which might have a direct impact on the patient's compliance and treatment adherence. The aim of the current study is to evaluate the proportion of T2DM patients preferring oral anti-diabetic treatment with vildagliptin + metformin versus an injectable anti-diabetic treatment with liraglutide after 4 weeks of treatment with each medication.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
62
Inclusion Criteria
  • Patients with type 2 diabetes
  • Metformin monotherapy > 12 weeks
  • Hemoglobin A1c (HbA1c) > 6.5 % and < 9.0 %
  • Body mass Index (BMI) 19-35 (kg/m²)
Exclusion Criteria
  • acute diseases at randomization
  • kidney diseases with creatinin > 120 µmol/l, glomerular filtration rate (GFR) <50 ml/min
  • contraindication for Gliptins or glucagon-like-peptide-analogues according to the respective Summary of Product Characteristics (SmPC)
  • previous use of dipeptidyl peptidase-4-inhibitors and GLP-1-mimetics

Other protocol-defined inclusion/exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Liraglutide + Metformin followed by Vildagliptin/MetforminVildagliptin/ MetforminIn period I, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid (twice daily) for the first week (week 0 - week 1) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid (week 2 -12). In period II, patients will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for next 12 weeks.
Vildagliptin/Metformin followed by Liraglutide+MetforminVildagliptin/ MetforminIn period I, Patients receiving vildagliptin will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for 12 weeks. In period II, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid for the first week (week 13 - week 14) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid.
Vildagliptin/Metformin followed by Liraglutide+MetforminLiraglutideIn period I, Patients receiving vildagliptin will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for 12 weeks. In period II, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid for the first week (week 13 - week 14) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid.
Vildagliptin/Metformin followed by Liraglutide+MetforminMetforminIn period I, Patients receiving vildagliptin will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for 12 weeks. In period II, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid for the first week (week 13 - week 14) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid.
Liraglutide + Metformin followed by Vildagliptin/MetforminLiraglutideIn period I, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid (twice daily) for the first week (week 0 - week 1) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid (week 2 -12). In period II, patients will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for next 12 weeks.
Liraglutide + Metformin followed by Vildagliptin/MetforminMetforminIn period I, patients will receive 0.6mg liraglutide od (once daily) + 1000mg metformin bid (twice daily) for the first week (week 0 - week 1) and increase the dose after 7 days up to 1.2mg liraglutide od/1000mg metformin bid (week 2 -12). In period II, patients will receive a stable dose of 50mg vildagliptin bid (twice daily) + 1000mg metformin bid for next 12 weeks.
Primary Outcome Measures
NameTimeMethod
Proportion of patients preferring each treatment regimenAt week 24

Individual patient preference will be assessed by a two-choice question.

Secondary Outcome Measures
NameTimeMethod
Investigator preference and subjective reasons of preference to each treatmentWeek 12, week 24

Investigator preference will be assessed by a two-choice question. Investigator will also be asked to specify the reason for preference. A specific questionnaire for the preference reasons will be provided.

Number of patients responding to subjective reasons of preference to each treatmentWeek 12, week 24

Individual patient preference will be assessed by a two-choice question. Patients will also be asked to specify the reason for preference. A specific questionnaire for the preference reasons will be provided.

Number of patients with treatment satisfaction for each treatment measured by Diabetes Treatment Satisfaction Questionnaire (TSQM-9)week 12, Week 24

The TSQM -9 is a psychometrically measure of the major dimensions of patients' satisfaction with medication. It provides scores on 3 scales: effectiveness (3 items), convenience (3 items) and global satisfaction (3 items).

Number of patients with adverse event, serious adverse events and death24 weeks

Adverse events are defined as any unfavorable and unintended diagnosis, symptom, sign (including an abnormal laboratory finding), syndrome or disease which either occurs during study, having been absent at baseline, or, if present at baseline, appears to worsen. Serious adverse events are any untoward medical occurrences that result in death, are life threatening, require (or prolong) hospitalization, cause persistent or significant disability/incapacity, result in congenital anomalies or birth defects, or are other conditions which in judgment of investigators represent significant hazards.

Change from baseline in fasting plasma glucose at 12 weeks and 24 weeksFrom Baseline to 12 weeks and 24 weeks

Blood glucose measurements will be performed at baseline, week 12 and week 24 visits.

Change From Baseline in Hemoglobin A1c (HbA1c) at week 12 and week 24From Baseline to 12 weeks and 24 weeks

HbA1c measurements will be performed at baseline, week 12 and week 24 visits.

Trial Locations

Locations (1)

Novartis Investigative Site

🇩🇪

Völlkingen, Germany

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