We updated the design of this site on September 25th. Learn more.
Show more
ClinicalTrials.gov
ClinicalTrials.gov Menu

A Study in China Evaluating the Safety and Efficacy of Adding Sitagliptin to Stable Therapy With Insulin With or Without Metformin in Participants With Type 2 Diabetes Mellitus (T2DM) (MK-0431-254)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01590797
First Posted: May 3, 2012
Last Update Posted: April 21, 2017
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):
Merck Sharp & Dohme Corp.
  Purpose
A study to compare safety and efficacy of sitagliptin and placebo therapy when added to stable insulin alone or in combination with metformin in participants with type 2 diabetes mellitus (T2DM). The primary hypothesis of this study is that after 24 weeks, the addition of sitagliptin compared with placebo provides greater reduction in hemoglobin A1C (HbA1C) in T2DM participants on insulin alone or in combination with metformin.

Condition Intervention Phase
Type 2 Diabetes Mellitus Drug: Sitagliptin Drug: Placebo Biological: Insulin Drug: Metformin Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Clinical Trial in China to Study the Safety and Efficacy of the Addition of Sitagliptin in Patients With Type 2 Diabetes Mellitus Who Have Inadequate Glycemic Control on Insulin Therapy, Alone or in Combination With Metformin

Resource links provided by NLM:


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

Primary Outcome Measures:
  • Change From Baseline in Hemoglobin A1C (HbA1C) Levels at Week 24 in Participants Receiving Insulin Alone or in Combination With Metformin [ Time Frame: Baseline and Week 24 ]
  • Number of Participants With One or More Adverse Events [ Time Frame: Up to Week 26 ]
    An adverse event (AE) is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.

  • Number of Participants Discontinuing Study Medication Due to an AE [ Time Frame: Up to Week 24 ]
    An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.


Secondary Outcome Measures:
  • Change From Baseline in HbA1C Levels at Week 24 in Participants Receiving Insulin in Combination With Metformin [ Time Frame: Baseline and Week 24 ]
  • Change From Baseline in 2-Hour Post Meal Glucose Levels at Week 24 in Participants Receiving Insulin Alone or in Combination With Metformin [ Time Frame: Baseline and Week 24 ]

Enrollment: 467
Actual Study Start Date: July 10, 2012
Study Completion Date: June 25, 2014
Primary Completion Date: June 11, 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sitagliptin
Participants treated with sitagliptin 100 mg, once daily, for 24 weeks. All participants will be under treatment with a stable dose of insulin with or without metformin for ≥10 weeks before and throughout the study. All participants will receive placebo during the Placebo Run-in period.
Drug: Sitagliptin
Sitagliptin 100 mg once daily for 24 weeks
Other Names:
  • Januvia®
  • MK-0431
Biological: Insulin
Participants can be on on pre-mixed (mixture of rapid- and long-acting insulin) or intermediate- or long-acting insulin at a dose of at least 12 U/day.
Drug: Metformin
At randomization, participants will be stratified according to their use of metformin (on or not on). All participants receiving metformin will be required to be on a daily dose of metformin at least 1500 mg per day.
Placebo Comparator: Placebo
Participants treated with placebo matching sitagliptin, once daily, for 24 weeks. All participants will be under treatment with a stable dose of insulin with or without metformin for ≥10 weeks before and throughout the study. All participants will receive placebo during the Placebo Run-in period.
Drug: Placebo
Matching placebo once daily for 24 weeks
Biological: Insulin
Participants can be on on pre-mixed (mixture of rapid- and long-acting insulin) or intermediate- or long-acting insulin at a dose of at least 12 U/day.
Drug: Metformin
At randomization, participants will be stratified according to their use of metformin (on or not on). All participants receiving metformin will be required to be on a daily dose of metformin at least 1500 mg per day.

  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 79 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • has T2DM
  • is currently on a stable regimen of pre-mixed, intermediate-acting, or long-acting insulin at a dose of at least 12 U/day, either alone or in combination with metformin >=1500 mg/day for ≥ 10 weeks
  • has a Visit 1/Screening HbA1C between 7.5% and 11.0%
  • is a male, or a female who is highly unlikely to conceive during the study and for 14 days after the last dose of study medication

Exclusion Criteria:

  • has been treated with any antihyperglycemic therapies other than a protocol-required insulin (alone or with metformin) within the prior 12 weeks or has ever

been treated with a dipeptidyl peptidase-4 inhibitor or a glucagon-like peptide-1 mimetic or analogue

  • is currently on treatment with daily use (one or more injections per day) of

pre-prandial short-acting or rapid-acting insulin

  • has a history of 2 or more episodes of hypoglycemia resulting in seizure,

coma, or loss of consciousness, or has had recurrent episodes of hypoglycemia over the past 8 weeks

  • has a history of intolerance or hypersensitivity, or has any contraindication to sitagliptin, insulin, or metformin
  • is on a weight loss program and not in the maintenance phase, or has started a weight loss medication or has undergone bariatric surgery within 12 months
  • has undergone a surgical procedure within 4 weeks or has planned major surgery during the study
  • has a medical history of active liver disease
  • has had new or worsening signs or symptoms of coronary heart disease within the past 3 months, or has acute coronary syndrome, coronary artery intervention, or stroke or transient ischemic neurological disorder
  • has a diagnosis of congestive heart failure with New York Heart Association Class III - IV cardiac status
  • has a systolic blood pressure ≥ 160 mmHg or a diastolic blood pressure ≥ 90 mmHg
  • has human immunodeficiency virus (HIV)
  • has severe peripheral vascular disease
  • is currently being treated for hyperthyroidism or is on thyroid hormone therapy and has not been on a stable dose for at least 6 weeks
  • has a history of malignancy ≤ 5 years before the study, except for adequately treated basal cell or squamous cell skin cancer, or in situ cervical cancer
  • has a clinically important hematological disorder (such as aplastic anemia,

myeloproliferative or myelodysplastic syndromes, thrombocytopenia)

  • is pregnant or breast feeding, or is expecting to conceive or donate eggs during the study, including 14 days after the last dose of study medication
  • is a user of recreational or illicit drugs or has had a recent history of drug abuse
  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): NCT01590797


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

Publications:
Study Data/Documents: CSR Synopsis  This link exits the ClinicalTrials.gov site

Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT01590797     History of Changes
Other Study ID Numbers: 0431-254
First Submitted: May 1, 2012
First Posted: May 3, 2012
Results First Submitted: January 16, 2015
Results First Posted: January 27, 2015
Last Update Posted: April 21, 2017
Last Verified: March 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description:

http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final_Updated%20July_9_2014.pdf

http://engagezone.msd.com/ds_documentation.php


Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Insulin, Globin Zinc
Insulin
Metformin
Sitagliptin Phosphate
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