E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
|
MedDRA Classification |
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 |
This protocol is intended to provide information regarding the efficacy and safety of the nicotine partial agonist varenicline tartrate 1 mg BID for smoking cessation in diabetic subjects who smoke. Given that a better understanding of predictors of smoking cessation can be useful in identifying potential quitters and likely relapsers and that little is known about these predictors in diabetics, the role of different predictors of abstinence at the end of the study will also be examined. |
|
E.2.2 | Secondary objectives of the trial |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Type 2 diabetic patients (≤ 75 years of age) who are regular smokers (10 cigs/day during the past year, with no period of abstinence greater than three months in the past year) and willing to quit. 2. Females of nonchildbearing potential (surgically sterilized or at least 2 years postmenopausal) who are not nursing may be included. Females of childbearing potential may be included provided that they are not pregnant, not nursing, and are practicing effective contraception. 3. Participating subjects must be able to provide written informed consent. |
|
E.4 | Principal exclusion criteria |
1. Subjects currently or within the past 12 months requiring treatment for depression. Subjects with a past or present history of panic disorder, psychosis, or bipolar disorder; 2. Subjects with a current or recent (within the past 12 months) history of alcoholism; 3. Subjects with a requirement to use other medications during the study that might interfere with the evaluation of the study drug (e.g., nicotine replacement therapy); 4. Subjects with a body mass index (BMI) less than 15 or greater than 38, wearing indoor clothing without shoes and determined using the Body Mass Index (BMI); 5. Subjects with evidence or history of clinically significant allergic (except for seasonal allergies at time of dosing), endocrine, gastrointestinal, hematological, hepatic, neurologic, pulmonary, or renal disease or a history of cancer (excluding treated basal cell carcinoma and squamous cell carcinoma). Exceptions to this exclusion may include subjects with a history of mild chronic obstructive pulmonary disease, and stable thyroid disease. 6. Subjects with a history of clinically significant cardiovascular disease. In addition, subjects with uncontrolled hypertension or a screening or baseline systolic blood pressure greater than 160 mm Hg or a diastolic blood pressure greater than 95 mm Hg will be excluded. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Primary Endpoint: Success rates at week 24 in the varenicline vs placebo group. Success rates will be defined as the Continuous Quit Rate (CQR) since last visit. Subjects will be classified as responders if they are able to maintain abstinence from cigarette smoking during this period of time with end-expiratory exhaled CO measurements ≤ 10 ppm. This measure (CQR) will be obtained through reports of cigarette use by means of the Nicotine Use Inventory (NUI) confirmed by a measurement of an end-expiratory exhaled carbon monoxide concentration that is ≤ 10 ppm on the study visit at week 24. Co-primary endpoint: Success rates at week 12 in the varenicline vs placebo group. Success rates will be defined as Continuous Quit Rate (CQR) for Weeks 8 to 12 of treatment. Subjects will be classified as responders if they are able to maintain complete abstinence from cigarette smoking (not even a puff) in each of the last four study visits (week 9, week 10, week 11, and week 12) with end-expiratory exhaled CO measurements ≤ 10 ppm. This measure will be obtained through reports of cigarette use by means of the Nicotine Use Inventory (NUI) during the last four study visits (week 9, week 10, week 11, and week 12) confirmed by a measurement of an end-expiratory exhaled carbon monoxide concentration that is ≤ 10 ppm on each study visit. |
|
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 | No |
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 | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
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 | Information not present in EudraCT |
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
| |
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 3 |