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Study of Safety and Efficacy of PF-04991532 in Subjects With Type 2 Diabetes

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01338870
First Posted: April 20, 2011
Last Update Posted: April 23, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Pfizer
  Purpose
B2611003 is designed to study how safe and effective an investigational medication (PF-04991532) is in people with Type 2 diabetes. Subjects in the study will receive 1 of 6 treatments for 3 months. One of the treatments will be sitagliptin which is an approved drug, and another treatment will be placebo, which does not contain active ingredient.

Condition Intervention Phase
Diabetes Mellitus, Type 2 Drug: Placebo Drug: 25 mg PF-04991532 Drug: 75 mg PF-04991532 Drug: 150 mg PF-04991532 Drug: 300 mg PF-04991532 Drug: Sitagliptin 100 mg Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A 12-week, Phase 2, Randomized, Double-blind, Placebo Controlled, Dose-ranging, Parallel Group Study to Evaluate the Efficacy and Safety of Twice Daily Pf-04991532 and Once Daily Sitagliptin in Adult Patients With Type 2 Diabetes Mellitus Inadequately Controlled on Metformin

Resource links provided by NLM:


Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 12 [ Time Frame: Baseline, Week 12 ]
    HbA1c is a form of hemoglobin which is measured primarily to identify the average plasma glucose concentration over prolonged periods of time. The normal range for the HbA1c test is between 4 percent (%) and 5.6%. HbA1c levels between 5.7% and 6.4% indicate increased risk of diabetes and levels of 6.5% or higher indicate diabetes.


Secondary Outcome Measures:
  • Change From Baseline in Fasting Plasma Glucose at Week 1, 2, 4, 8 and 12 [ Time Frame: Baseline, Week 1, 2, 4, 8, 12 ]
  • Change From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 1, 2, 4 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 8 ]
    HbA1c is a form of hemoglobin which is measured primarily to identify the average plasma glucose concentration over prolonged periods of time. The normal range for the HbA1c test is between 4% and 5.6%. HbA1c levels between 5.7% and 6.4% indicate increased risk of diabetes and levels of 6.5% or higher indicate diabetes.

  • Percentage of Participants Achieving Less Than (<) 6.5% or <7% Glycosylated Hemoglobin (HbA1c) Levels [ Time Frame: Week 12 ]
    HbA1c is a form of hemoglobin which is measured primarily to identify the average plasma glucose concentration over prolonged periods of time. The normal range for the HbA1c test is between 4% and 5.6%. HbA1c levels between 5.7% and 6.4% indicate increased risk of diabetes, and levels of 6.5% or higher indicate diabetes.

  • Change From Baseline in Body Weight at Week 1, 2, 4, 8 and 12 [ Time Frame: Baseline, Week 1, 2, 4, 8, 12 ]
    Overweight or obesity increases the risk for developing diabetes. The treatment of diabetes has been the recommendation to lose weight. As weight loss progresses and is maintained, an improvement of glycemia may be evidenced by a reduction in HbA1c.

  • Percentage of Participants With Greater Than or Equal to (>=) 1% or >= 2% Gain in Body Weight From Baseline [ Time Frame: Week 12 ]
    Overweight or obesity increases the risk for developing diabetes. Participants with >= 1% or >= 2% gain in body weight from baseline signifies a higher risk of diabetes.

  • Percentage of Participants With Greater Than or Equal to (>=) 1% or >= 2% Loss in Body Weight From Baseline [ Time Frame: Week 12 ]
    The treatment of diabetes has been the recommendation to lose weight. As weight loss progresses and is maintained, an improvement of glycemia may be evidenced by a reduction in HbA1c. Participants with >= 1% or >= 2% loss in body weight from baseline signifies an improvement of glycemia.


Enrollment: 301
Study Start Date: June 2011
Study Completion Date: March 2012
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo
Placebo for PF-04991532 and sitagliptin
Drug: Placebo
Tablets (n=4), 0 mg twice daily for 84 days
Experimental: 25 mg PF-04991532 Drug: 25 mg PF-04991532
Tablets (n=1), 25 mg strength + tablets (n=3) 0 mg twice daily for 84 days
Experimental: 75 mg PF-04991532 Drug: 75 mg PF-04991532
Tablets (n=3), 25 mg strength + tablets (n=1) 0 mg twice daily for 84 days
Experimental: 150 mg PF-04991532 Drug: 150 mg PF-04991532
Tablets (n=1), 150 mg strength + tablets (n=3) 0 mg twice daily for 84 days
Experimental: 300 mg PF-04991532 Drug: 300 mg PF-04991532
Tablets (n=2), 150 mg strength + tablets (n=2) 0 mg twice daily for 84 days
Active Comparator: Sitagliptin 100 mg Drug: Sitagliptin 100 mg
Tablets (n=1), 100 mg strength + tablets (n=3) 0 mg once daily in the morning for 84 days; and tablets (n=4) 0 mg once daily in the evening for 84 days.

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

Subjects with type 2 diabetes on stable doses of background medicines for management of diabetes; aged 18-70 years; body mass index between 22.5 and 45.5 kg/m2

Exclusion Criteria:

Subjects with type 1 diabetes, heart attack or stroke in the past 6 months, uncontrolled blood pressure, significant kidney disease.

  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01338870


  Show 42 Study Locations
Sponsors and Collaborators
Pfizer
Investigators
Study Director: Pfizer CT.gov Call Center Pfizer
  More Information

Additional Information:
Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT01338870     History of Changes
Other Study ID Numbers: B2611003
First Submitted: April 13, 2011
First Posted: April 20, 2011
Results First Submitted: March 11, 2013
Results First Posted: April 23, 2013
Last Update Posted: April 23, 2013
Last Verified: March 2013

Keywords provided by Pfizer:
Phase 2
safety and efficacy study with PF-04991532
Type 2 diabetes

Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Sitagliptin Phosphate
Niacin
Hypoglycemic Agents
Physiological Effects of Drugs
Incretins
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Dipeptidyl-Peptidase IV Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Hypolipidemic Agents
Antimetabolites
Lipid Regulating Agents
Vasodilator Agents
Vitamin B Complex
Vitamins
Micronutrients
Growth Substances