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ALPHA Sitagliptin Add on to Metformin (0431-103)

This study has been completed.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp. Identifier:
First received: January 28, 2009
Last updated: February 3, 2016
Last verified: February 2016
Canadian physicians to experience in real life clinical practice the efficacy and tolerability of adding sitagliptin to their patients who have their glycemic levels inadequately controlled while on metformin

Condition Intervention Phase
Diabetes Mellitus
Drug: sitagliptin phosphate
Phase 4

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A 24 Week, Multicenter, Open-label Study to Evaluate the Efficacy and Safety of Adding Sitagliptin 100 mg Once Daily in Patients With T2DM Who Have Inadequate Glycemic Control on Metformin Therapy

Resource links provided by NLM:

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

Primary Outcome Measures:
  • Change From Baseline in HbA1c at Week 24 [ Time Frame: Baseline and Week 24 ]
    HbA1c is measured as percent. Thus, this change from baseline reflects the Week 24 HbA1c percent minus the Week 0 HbA1c percent

Secondary Outcome Measures:
  • Change From Baseline in HbA1c at Week 12 [ Time Frame: Baseline and Week 12 ]
    HbA1c is measured as percent. Thus, this change from baseline reflects the Week 12 HbA1c percent minus the Week 0 HbA1c percent

Enrollment: 608
Study Start Date: March 2008
Study Completion Date: October 2009
Primary Completion Date: October 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Drug: sitagliptin phosphate
Sitagliptin 100 mg/day - tablet for 24 weeks
Other Name: Januvia


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Patient Is Currently On Monotherapy With Metformin For At Least 10 Weeks Prior To Study Entry

  Contacts and Locations
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Please refer to this study by its identifier: NCT00833027

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: NCT00833027     History of Changes
Other Study ID Numbers: 0431-103
Study First Received: January 28, 2009
Results First Received: August 26, 2010
Last Updated: February 3, 2016

Additional relevant MeSH terms:
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Sitagliptin Phosphate
Hypoglycemic Agents
Physiological Effects of Drugs
Hormones, Hormone Substitutes, and Hormone Antagonists
Dipeptidyl-Peptidase IV Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on April 28, 2017