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A study to compare safety and efficacy of sitagliptin and placebo therapy when added to stable sulfonylurea 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 sulfonylurea alone or in combination with metformin.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Sitagliptin | Experimental | Sitagliptin 100 mg once daily for 24 weeks. Participants will continue pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. All participants will receive placebo during run-in period. |
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| Placebo | Placebo Comparator | Matching placebo once daily for 24 weeks. Participants will continue pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Sitagliptin | Drug | Sitagliptin 100 mg oral tablet once daily for 24 weeks |
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| Measure | Description | Time Frame |
|---|---|---|
| Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Baseline and Week 24 |
| Number of Participants Who Experienced an Adverse Event | An adverse event is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment. Adverse events may include the onset of new illness and the exacerbation of pre-existing conditions. | Up to 26 weeks |
| Number of Participants Who Discontinued Study Drug Due to an Adverse Event | An adverse event is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment. Adverse events may include the onset of new illness and the exacerbation of pre-existing conditions. | Up to 24 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Baseline and Week 24 |
| Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin |
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Inclusion Criteria:
Exclusion Criteria:
been treated with a dipeptidyl peptidase-4 inhibitor or a glucagon-like peptide-1 mimetic or analogue
myeloproliferative or myelodysplastic syndromes, thrombocytopenia)
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27502307 | Result | Ba J, Han P, Yuan G, Mo Z, Pan C, Wu F, Xu L, Hanson ME, Engel SS, Shankar RR. Randomized trial assessing the safety and efficacy of sitagliptin in Chinese patients with type 2 diabetes mellitus inadequately controlled on sulfonylurea alone or combined with metformin. J Diabetes. 2017 Jul;9(7):667-676. doi: 10.1111/1753-0407.12456. Epub 2016 Sep 13. |
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| ID | Type | URL | Comment |
|---|---|---|---|
| CSR Synopsis | View IPD |
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All participants randomized population.
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| ID | Title | Description |
|---|---|---|
| FG000 | Sitagliptin | Sitagliptin 100 mg once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. |
| FG001 | Placebo |
| Title | Milestones | Reasons Not Completed | |||||
|---|---|---|---|---|---|---|---|
| Overall Study |
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| Placebo | Drug | Matching placebo to sitagliptin oral tablet once daily for 24 weeks |
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| Gliclazide | Drug | Participants will continue ongoing open-label therapy with gliclazide (dosed according to the China drug label) throughout the study. |
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| Glimepiride | Drug | Participants will continue ongoing open-label therapy with glimepiride (dosed according to the China drug label) throughout the study. |
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| Metformin | Drug | Participants will continue ongoing open-label therapy with metformin (at least 1500 mg daily) throughout the study. |
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This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. |
| Baseline and Week 24 |
| Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea in Combination With Metformin | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Baseline and Week 24 |
| Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Baseline and Week 24 |
| Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and a Sulfonylurea in Combination With Metformin | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Baseline and Week 24 |
| Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Baseline and Week 24 |
| Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea in Combination With Metformin | This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. | Baseline and Week 24 |
| Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. | Baseline and Week 24 |
Matching placebo once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study.
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| ID | Title | Description |
|---|---|---|
| BG000 | Sitagliptin | Sitagliptin 100 mg once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. |
| BG001 | Placebo | Matching placebo once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. |
| BG002 | Total | Total of all reporting groups |
| Units | Counts |
|---|---|
| Participants |
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| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean | Standard Deviation | Years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Hemoglobin A1c (A1C) | Mean | Standard Deviation | Percent of glycosylated hemoglobin (A1C) |
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| 2-hour post meal glucose (2-hr PMG) | Sitagliptin, n=248; placebo, n=249; total, n=497 | Mean | Standard Deviation | mg/dL |
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| Fasting plasma glucose (FPG) | Sitagliptin, n=249; placebo, n=249; total, n=498 | Mean | Standard Deviation | mg/dL |
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| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Full analysis set consists of all participants who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | Percent of glycosylated hemoglobin (A1C) | Baseline and Week 24 |
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| Secondary | Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Full analysis set consists of all participants who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Secondary | Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone or in Combination With Metformin | This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. | Full analysis set consists of all participants who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Secondary | Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea in Combination With Metformin | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Full analysis set (on metformin) consists of all participants on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | Percent of glycosylated hemoglobin (A1C) | Baseline and Week 24 |
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| Secondary | Change From Baseline in A1C Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | A1C was measured as a percent. This change from baseline reflects the A1C percent at Week 24 minus the A1C percent at Week 0. | Full analysis set (not on metformin) consists of all participants not on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | Percent of glycosylated hemoglobin (A1C) | Baseline and Week 24 |
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| Secondary | Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and a Sulfonylurea in Combination With Metformin | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Full analysis set (on metformin) consists of all participants on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Secondary | Change From Baseline in 2-hr PMG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | This change from baseline reflects the 2-hr PMG level at Week 24 minus the 2-hr PMG level at Week 0. | Full analysis set (not on metformin) consists of all participants not on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Secondary | Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea in Combination With Metformin | This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. | Full analysis set (on metformin) consists of all participants on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Secondary | Change From Baseline in FPG Levels at Week 24 in Participants Receiving Sitagliptin and Sulfonylurea Alone | This change from baseline reflects the FPG level at Week 24 minus the FPG level at Week 0. | Full analysis set (not on metformin) consists of all participants not on metformin who received at least one dose of study drug, have a baseline measurement, and have at least one post-randomization measurement. | Posted | Least Squares Mean | 95% Confidence Interval | mg/dL | Baseline and Week 24 |
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| Primary | Number of Participants Who Experienced an Adverse Event | An adverse event is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment. Adverse events may include the onset of new illness and the exacerbation of pre-existing conditions. | All participants as treated population defined as all randomized participants who received at least one dose of study medication. Participants are included in the treatment group corresponding to the study treatment actually received. | Posted | Number | Participants | Up to 26 weeks |
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| Primary | Number of Participants Who Discontinued Study Drug Due to an Adverse Event | An adverse event is any untoward medical occurrence in a participant administered study drug which does not necessarily have a causal relationship with the treatment. Adverse events may include the onset of new illness and the exacerbation of pre-existing conditions. | All participants as treated population defined as all randomized participants who received at least one dose of study medication. Participants are included in the treatment group corresponding to the study treatment actually received. | Posted | Number | Participants | Up to 24 weeks |
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Up to 26 weeks (including 14 days following the last dose of study medication).
All participants as treated population defined as all randomized participants who received at least one dose of study medication. Participants are included in the treatment group corresponding to the study treatment actually received.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Sitagliptin | Sitagliptin 100 mg once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. | 7 | 248 | 54 | 248 | ||
| EG001 | Placebo | Matching placebo once daily for 24 weeks. Participants continued pre-study gliclazide or glimepiride with or without metformin for ≥10 weeks before and throughout the study. | 7 | 249 | 40 | 249 |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Angina pectoris | Cardiac disorders | MedDRA 17.0 | Systematic Assessment |
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| Erysipelas | Infections and infestations | MedDRA 17.0 | Systematic Assessment |
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| Lung infection | Infections and infestations | MedDRA 17.0 | Systematic Assessment |
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| Mastitis | Infections and infestations | MedDRA 17.0 | Systematic Assessment |
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| Pneumonia | Infections and infestations | MedDRA 17.0 | Systematic Assessment |
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| Blood glucose increased | Investigations | MedDRA 17.0 | Systematic Assessment |
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| Diabetes mellitus | Metabolism and nutrition disorders | MedDRA 17.0 | Systematic Assessment |
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| Hypokalaemia | Metabolism and nutrition disorders | MedDRA 17.0 | Systematic Assessment |
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| Rhabdomyolysis | Musculoskeletal and connective tissue disorders | MedDRA 17.0 | Systematic Assessment |
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| Cervix carcinoma | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 17.0 | Systematic Assessment |
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| Thalamus haemorrhage | Nervous system disorders | MedDRA 17.0 | Systematic Assessment |
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| Vertebrobasilar insufficiency | Nervous system disorders | MedDRA 17.0 | Systematic Assessment |
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| Asthma | Respiratory, thoracic and mediastinal disorders | MedDRA 17.0 | Systematic Assessment |
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| Hypertension | Vascular disorders | MedDRA 17.0 | Systematic Assessment |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Urinary tract infection | Infections and infestations | MedDRA 17.0 | Systematic Assessment |
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| Hyperlipidaemia | Metabolism and nutrition disorders | MedDRA 17.0 | Systematic Assessment |
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| Hypoglycaemia | Metabolism and nutrition disorders | MedDRA 17.0 | Systematic Assessment |
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The Sponsor must have the opportunity to review all proposed abstracts, manuscripts, or presentations regarding the study 60 days prior to submission for publication/presentation. Any information identified by the Sponsor as confidential must be deleted prior to submission.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Senior Vice President, Global Clinical Development | Merck Sharp & Dohme Corp. | 1-800-672-6372 | ClinicalTrialsDisclosure@merck.com |
| ID | Term |
|---|---|
| D003924 | Diabetes Mellitus, Type 2 |
| ID | Term |
|---|---|
| D003920 | Diabetes Mellitus |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
| D004700 | Endocrine System Diseases |
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| ID | Term |
|---|---|
| D000068900 | Sitagliptin Phosphate |
| D005907 | Gliclazide |
| C057619 | glimepiride |
| D008687 | Metformin |
| ID | Term |
|---|---|
| D014230 | Triazoles |
| D001393 | Azoles |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D011719 | Pyrazines |
| D000096926 | Benzenesulfonamides |
| D013449 | Sulfonamides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D013453 | Sulfonylurea Compounds |
| D014508 | Urea |
| D001555 | Benzene Derivatives |
| D006841 | Hydrocarbons, Aromatic |
| D006844 | Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |
| D013450 | Sulfones |
| D013457 | Sulfur Compounds |
| D001645 | Biguanides |
| D006146 | Guanidines |
| D000578 | Amidines |
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