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30-Week Extension to an Initial Combination Study (24 Weeks in Duration) of Sitagliptin With Pioglitazone

This study has been completed.
Sponsor:
Information provided by:
Merck
ClinicalTrials.gov Identifier:
NCT01028391
First received: December 8, 2009
Last updated: April 21, 2010
Last verified: April 2010
History of Changes
  Purpose

A 30-week extension to a 24-week study assessing the hemoglobin A1c (HbA1c)- and fasting plasma glucose (FPG)-lowering efficacy of the combination of sitagliptin and pioglitazone in patients with type 2 diabetes mellitus (T2DM) with inadequate glycemic control.


Condition Intervention Phase
Type 2 Diabetes Mellitus
 Drug: Sitagliptin 100 mg q.d.+ Pioglitazone 45 mg q.d.
Drug: Pioglitazone 45 mg q.d. + Sitagliptin 100 mg placebo q.d.
Drug: Metformin
 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 30-Week Extension to: A Multicenter, Randomized, Double-Blind Study to Evaluate the Safety and Efficacy of the Initial Therapy With Coadministration of Sitagliptin and Pioglitazone in Patients With Type 2 Diabetes Mellitus

Resource links provided by NLM:

U.S. FDA Resources

Further study details as provided by Merck:

Primary Outcome Measures:
  • Change From Baseline (i.e., Week 0 of the 24-week Base Study) in Hemoglobin A1c (HbA1c) at Week 54 [ Time Frame: Baseline and 54 Weeks ] [ Designated as safety issue: No ]
    HbA1c is measured as percent. Thus this change from baseline reflects the Week 54 HbA1c percent minus the Week 0 HbA1c percent.


Secondary Outcome Measures:
  • Change From Baseline (i.e., Week 0 of the 24-week Base Study) in Fasting Plasma Glucose (FPG) at Week 54 [ Time Frame: Baseline and Week 54 ] [ Designated as safety issue: No ]
    Change from baseline at Week 54 is defined as Week 54 minus Week 0.


Enrollment: 317
Study Start Date: September 2007
Study Completion Date: January 2009
Primary Completion Date: January 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sitagliptin + Pioglitazone Drug: Sitagliptin 100 mg q.d.+ Pioglitazone 45 mg q.d.
Patients will receive combination therapy with blinded sitagliptin 100 mg q.d. (q.d. = once daily) and open-label pioglitazone 45 mg q.d. during the up to 30 week extension study. Sitagliptin 100 mg q.d. and pioglitazone 45 mg q.d. will be administered as oral tablets.
Drug: Metformin
Patients not meeting specific glycemic goals during the 30-week extension study will receive open-label metformin at a dose determined by the investigator.
Other Name: Metformin
Active Comparator: Pioglitazone + Placebo Drug: Pioglitazone 45 mg q.d. + Sitagliptin 100 mg placebo q.d.
Patients will receive placebo to match sitagliptin 100 mg q.d. (blinded) and open-label pioglitazone 45 mg q.d. during the up to 30 week extension study. The placebo to match sitagliptin 100 mg q.d. (blinded) and open-label pioglitazone 45 mg q.d. will be administered as oral tablets.
Drug: Metformin
Patients not meeting specific glycemic goals during the 30-week extension study will receive open-label metformin at a dose determined by the investigator.
Other Name: Metformin

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients must complete the double-blind base study (MK-0431-064-00)(NCT00397631) and have at least 75% compliance with study medication during the base study treatment period.
  • Women of childbearing potential must continue to comply with the protocol-specified contraceptive methods
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01028391

Sponsors and Collaborators
Merck
Investigators
Study Director: Medical Monitor Merck
  More Information

No publications provided by Merck

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Responsible Party: Executive Vice President, Clinical and Quantitative Sciences, Merck Sharp & Dohme Corp
ClinicalTrials.gov Identifier: NCT01028391     History of Changes
Other Study ID Numbers: 2009_003, MK0431-064-10
Study First Received: December 8, 2009
Results First Received: January 11, 2010
Last Updated: April 21, 2010
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
Pioglitazone
Sitagliptin
Metformin
 Hypoglycemic Agents
Physiological Effects of Drugs
Pharmacologic Actions
Dipeptidyl-Peptidase IV Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action

ClinicalTrials.gov processed this record on June 17, 2013