E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 13.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10045242 |
E.1.2 | Term | Type II diabetes mellitus |
E.1.2 | System Organ Class | 10027433 - Metabolism and nutrition disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the difference in FPG between vildagliptin and sitagliptin after two weeks in patients with type 2 diabetes mellitus pre-treated with metformin. |
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E.2.2 | Secondary objectives of the trial |
To assess the difference in FPG between vildagliptin and sitagliptin after a missed dose of either drug in patients with type 2 diabetes mellitus on concomitant treatment with metformin. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Type 2 diabetic patients stabilized on metformin monotherapy (stable dose for at least 4 weeks prior to Screening) ≥ 1000 mg/day and ≤ 2000 mg/day.
2. Patients must be diagnosed with type 2 diabetes mellitus at least 3 months prior to screening.
3. HbA1c 7.0 – 9.5% (metformin ≥ 1000 mg/day and < 2000 mg/day) or
HbA1c 6.5 – 9.5% (metformin 2000 mg/day) at screening.
4. FPG 126 – 270 mg/dl (7.0 – 15.0 mmol/L) at screening and at randomization.
5. Male and female patients, age 18 to 85 years of age inclusive.
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E.4 | Principal exclusion criteria |
1. FPG ≥ 270mg/dL (15mmol/L) at Visit 1 and Visit 102.
2. Use of any of the following medications as assessed at Visit 1:
a. use of any antidiabetic medication within the last 12 weeks, except metformin
b. use of weight control products including weight-loss medications in the last 12 weeks.
c. use of oral (≥7 consecutive days) or chronic parenteral or intra-articular corticosteroid treatment within the last 8 weeks. Inhaled or topical steroids without systemic effects will be allowed.
d. treatment with growth hormone within the previous 6 months.
e. treatment with any drug of known and frequent toxicity to a major organ, or that may interfere with the interpretation of the efficacy and safety data during the study.
3. a history or evidence of any of the following at Visit 1:
a. acute metabolic conditions such a ketoacidosis, lactic acidosis or hyperosmolar state (including precoma and coma) within the past 6 months.
b. current diagnosis of congestive heart failure (NYHA III or IV).
c. myocardial infarction within the past 6 months.
d. other acute or chronic disease which may cause tissue hypoxic (e.g. respiratory insufficiency, shock) within the past 6 months.
e. coronary artery bypass surgery or percutaneous coronary intervention within the past 6 months.
f. Stroke, transient ischemic attack, or reversible ischemic neurologic deficit within the past 6 months.
g. unstable angina within the past 3 months.
h. sustained and clinically relevant ventricular arrhythmia (patients with premature ventricular contractions if deemed not clinically significant may be enrolled).
i. active substance abuse, alcohol abuse and history of alcohol-related diseases within the past 2 years.
j. type 1 diabetes, monogenic diabetes, diabetes resulting from pancreatic injury, or secondary forms of diabetes
k. malignancy of an organ system (other than localized basal cell carcinoma of the skin) treated or untreated, within the past 5 years, regardless of whether there is evidence of local recurrence or metastases.
l. hepatic disorder
m. acute infections which may affect blood glucose control within the past 4 weeks.
n. Acute conditions with the potential to alter renal function within the past 6 months, such as:
• dehydration,
• severe infection,
• shock,
• intravascular administration of iodinated contrast agents
4. any of the following significant laboratory abnormalities as assessed at Visit 1:
a. clinically significant increase or reduction in thyroid stimulating hormone (TSH) outside of the normal range.
b. clinically significant renal dysfunction: glomerular filtration rate (GFR) <60mL/min/1.73m2 (via MDRD formula).
c. alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) > 2 x upper limit of normal (ULN) at Visit 1, confirmed by repeated measurements within 3 working days.
d. total bilirubin > 2 x ULN and/or direct bilirubin > 1 x ULN confirmed by repeated measurements within 3 working days.
e. positive Hepatitis B surface antigen (HBsAg).
f. positive Hepatitis C virus (HCV) antibody test (anti-HCV).
g. elevated fasting triglycerides (TGs) > 500mg/dL (5.65mmol/L), confirmed by a repeated measurements within 3 working days.
h. clinically significant laboratory abnormalities which, in the opinion of the investigator, cause the patient to be considered inappropriate for inclusion in the study.
5. any of the following electrocardiographic abnormalities at Visit 1:
a. second or third degree atrio-ventricular block without a pacemaker.
b. long QT syndrome or QTc > 500ms.
c. clinically significant electrocardiogram (ECG) abnormalities which, in the opinion of the investigator, cause the patient to be considered inappropriate for inclusion in the study
6. previous or current participation in any vildagliptin clinical study.
7. concurrent medical condition that may interfere with the interpretation of efficacy and safety data during the study.
8. donation of blood or significant blood loss equaling to at least one unit of blood within the past 2 weeks before screening or a blood transfusion within the past 12 weeks before screening or planned regular transfusions during the study period.
9. potentially unreliable, inability to comply with the study procedures or medications, and/or judged by the investigator to be unsuitable for the study.
10. use of an investigative drug within 30 days or 5 half-lives of the drug before screening, whichever is longer.
11. Women of childbearing potential not using hormonal contraceptives with a pearl index < 1, as well as women who are breastfeeding
12. Known sensitivity to study drug(s) or class of study drug(s)
13. Patients with severe medical condition(s) that in the view of the investigator prohibits participation in the study
14. Women
o who are pregnant or breast feeding
o who are menstruating and capable of becoming pregnant and not practicing a medically approved method of contraception
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary objective of the study is to demonstrate that the FPG after 14 days of treatment with Vildagliptin is superior to the FPG after 14 days of treatment with. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
The secondary endpoint FPG after a missed dose will be analyzed descriptively using graphical methods and tabulations. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 14 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |