MedTrace Logo

Sitagliptin (MK-0431) vs. Placebo in Patients With Inadequate Glycemic Control on Metformin With Pioglitazone (MK-0431-128)

NCT00885352 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 313

Last updated 2017-05-23

Study results available
· View outcomes & findings →

Summary

This study will examine the safety and efficacy of the addition of sitagliptin (MK-0431) compared to placebo in patients with type 2 diabetes mellitus with inadequate glycemic control who are taking pioglitazone and metformin.

Conditions

Interventions

DRUG

Sitagliptin

Sitagliptin 100 mg tablet orally once daily for 26 weeks.

DRUG

Comparator: Placebo

Placebo to sitagliptin 100 mg tablet orally once daily for 26 weeks.

DRUG

Pioglitazone

Participants taking 30 mg or more pioglitazone oral tablet(s) daily at screening in combination with metformin will enter a 4-week dose-stable period followed by a 2-week single-blind run-in and a 26-week treatment period. Participants taking 4 mg or more rosiglitazone oral tablet(s) daily at screening in combination with metformin were to be switched to a corresponding dose of pioglitazone prior to starting a 4-week dose-stable period. Participants who are taking less than 30 mg/day or no pioglitazone at screening will be titrated to a stable dose of at least 30 mg pioglitazone once daily over a maximum of 4 weeks followed by a dose-stable period of 10 weeks, a 2-week single-blind placebo run-in, and a 26-week treatment period. Total treatment with pioglitazone will be up to 42 weeks.

DRUG

Metformin

Participants taking 1500 mg or more metformin oral tablet(s) and at least 30 mg pioglitazone or 4 mg rosiglitazone daily at screening will enter a 4-week dose-stable period followed by a 2-week single-blind placebo run-in, and a 26-week treatment period. Participants who are taking less than 1500 mg/day metformin at screening will be titrated to a stable dose of at least 1500 mg metformin once daily over a maximum of 4 weeks followed by a dose-stable period of 10 weeks, a 2-week single-blind placebo run-in, and a 26-week treatment period. Total treatment with metformin will be up to 42 weeks.

DRUG

Glipizide

Participants not meeting specific glycemic controls during the 26-week treatment period will use glipizide oral tablets as rescue therapy. In countries where glipizide is not available, participants will receive a sulfonylurea marketed in that country.

Sponsors & Collaborators

Principal Investigators

  • Medical Monitor · Merck Sharp & Dohme LLC

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
78 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-04-15
Primary Completion
2010-11-10
Completion
2010-11-10

More Related Trials

Entities

Drugs
Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00885352 on ClinicalTrials.gov