Study of Sitagliptin in Older Type 2 Diabetics (0431-047)(COMPLETED)

This study has been completed.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp. Identifier:
First received: March 20, 2006
Last updated: November 12, 2013
Last verified: November 2013

To evaluate the effect of treatment with sitagliptin compared to placebo in elderly patients with type 2 diabetes mellitus who have poor glycemic control with diet and exercise.

Condition Intervention Phase
Type 2 Diabetes
Drug: sitagliptin phosphate
Drug: Comparator: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Multicenter, Double-Blind, Randomized, Parallel Group Study to Evaluate the Safety and Efficacy of Sitagliptin in Elderly Patients With Type 2 Diabetes Mellitus

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • Change From Baseline in HbA1c (Hemoglobin A1c) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: No ]
    Change from baseline at Week 24 is defined as Week 24 minus Week 0.

Secondary Outcome Measures:
  • Change From Baseline in FPG (Fasting Plasma Glucose) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: No ]
    Change from baseline at Week 24 is defined as Week 24 minus Week 0.

  • Change From Baseline in 2-hour PPG (Post-prandial Glucose) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: No ]
    Change from baseline at Week 24 is defined as Week 24 minus Week 0.

  • Rapidity of Onset of Action as Determined by Home Glucose Monitoring After 1 Week [ Time Frame: Week 1 ] [ Designated as safety issue: No ]
    Fingerstick glucose measurements were taken at 4 times (pre- and 2 hours post-breakfast and dinner) at each of Days -2, 3, and 7. The average of the 4 values was computed for each day. This outcome reflects the Day 7 average minus the Day -2 average.

Enrollment: 206
Study Start Date: March 2006
Study Completion Date: March 2008
Primary Completion Date: March 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Drug: sitagliptin phosphate
Once daily (q.d.) administration of sitagliptin 100 mg tablet (or 50 mg based on creatinine clearance). For up to a 24-wk treatment period.
Other Name: MK0431
Placebo Comparator: 2
Drug: Comparator: Placebo
sitagliptin matching placebo for up to a 24-wk treatment period.


Ages Eligible for Study:   65 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Community dwelling patients 65 years of age or older diagnosed with Type 2 Diabetes not controlled with diet and exercise
  • Patients must have a HbA1c of 7-10% off medication, or as a result of a protocol wash-out from oral anti-hyperglycemic agents by the qualifying visit

Exclusion Criteria:

  • Patients with type 1 diabetes
  • History of ketoacidosis or requires insulin use
  • Alanine aminotransferase / aspartate aminotransferase > 2.5 X ULN, triglycerides > 600 mg/dL, creatinine clearance < 35 mL/min
  • Fasting plasma glucose consistently > 260 mg/dL
  • Poorly controlled hypertension
  Contacts and Locations
Please refer to this study by its identifier: NCT00305604

Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Study Director: Medical Monitor Merck Sharp & Dohme Corp.
  More Information

Additional Information:
Responsible Party: Merck Sharp & Dohme Corp. Identifier: NCT00305604     History of Changes
Other Study ID Numbers: 0431-047, MK0431-047, 2006_003
Study First Received: March 20, 2006
Results First Received: February 24, 2009
Last Updated: November 12, 2013
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Dipeptidyl-Peptidase IV Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Hypoglycemic Agents
Physiological Effects of Drugs processed this record on April 17, 2014