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 |
Alzheimer's disease |
Alzheimer Erkrankung |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 16.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10001897 |
E.1.2 | Term | Alzheimer's disease (incl subtypes) |
E.1.2 | System Organ Class | 100000004852 |
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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 |
Efficacy of nilvadipine in mild to moderate Alzheimer's disease - cognition |
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E.2.2 | Secondary objectives of the trial |
Efficacy of nilvadipine in mild to moderate Alzheimer's disease - clinical symptoms and activities of daily living |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
5.1.1 Age range: Adult subjects, males and females over age 50 years.
5.1.2 Subjects with a diagnosis of probable Alzheimer’s disease based on the National Institute of Neurological and Communicative Disorders and Stroke/Alzheimer’s disease and Related Disorders Association, Inc (NINCDS-ADRDA) criteria (McKhann et al, 1984) (see Appendix B).
5.1.3 Subjects with a Standardised Mini-Mental State Examination (SMMSE) (Standish & Molloy, 1997) score of greater than or equal to 12 and less than 27
5.1.4 Subjects on a stable dose (>3 months) of cholinesterase inhibitor or memantine. The dose must be stabilised prior to randomisation. Patients due to begin these medications must not be enrolled until the dose is stabilised. Subjects who are not on cholinesterase inhibitors or memantine due to poor tolerability and/or who will not require treatment with these medications during the course of the study can be included.
5.1.5 Subjects who retain capacity will provide written informed consent for participation. The procedure for obtaining informed consent when the subject has reduced decision making capacity will follow national law and will be assessed by the relevant bodies in each of the participating countries.
5.1.6 Fluency in relevant language sufficient to reliably complete all study assessments.
5.1.7 Subjects with blood pressure values greater than 100/65mmHg but less than 159/99mmHg (Grade 1 hypertension, ECS guidelines 2007; escardio.org/guidelines) using an office based BP measurement will be included, or subjects with blood pressure values greater than 105/70mmHg but less than 140/90mmHg using an Ambulatory BP measurement will be included. |
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E.4 | Principal exclusion criteria |
5.2.1 Subjects with co-morbid dementia due to other neurological disorders such as Parkinson's disease, vascular dementia, Huntington's disease, Pick's disease, Creutzfeldt-Jakob disease, normal pressure hydrocephalus, brain tumour, progressive supranuclear palsy, seizure disorder, subdural hematoma, or multiple sclerosis, as well as subjects with HIV disease, neurosyphilis, history of significant head trauma with loss of consciousness followed by persistent neurological deficits, known structural brain abnormalities, or any other condition known to interfere with cognitive function.
5.2.2 Subjects currently taking any calcium channel blocker or b-blocker
5.2.3 Subjects who in the opinion of the investigator, have a medical condition that would preclude them from participating in the study:e.g. chronic heart failure, syncope within the past year, significant valvular heart disease
i.e. severe aortic and mitral stenosis symptomatic orthostatic hypotension within the last year, or subjects requiring more than one agent to control BP etc.. Any subject with significant cardiovascular disease including recent history of acute myocardial infarction and unstable angina pectoris.
Subjects who in the opinion of the investigator are unlikely to complete per protocol due to care issues etc.
5.2.4 Current Axis I diagnosis of schizophrenia, bipolar disorder, major depression. Subjects who are currently or who have within the past year met criteria for drug or alcohol abuse or dependence.
5.2.5 Pregnant women or women who may possibly become pregnant (pre-menopausal). Female subjects must be postmenopausal (no menses for ≥ 12 months without an alternative medical cause) to participate in the study.
5.2.6 Female subjects who are breastfeeding will be excluded from the study.
5.2.7 Subjects with a history of hypersensitivity to nilvadipine (Nivadil).
5.3.8 Subjects who have taken an investigational or other unapproved drug during the 30 days or five half-lives, whichever is longer, prior to baseline.
5. 2.9 Subjects who are taking any medication listed in the list of exclusion medication for the study (see Appendix C).
5.2.10 Subjects with abnormal ECG results that in the opinion of the clinician prevent participation in the study.
5.2.11 Standardised Mini-Mental State Examination (SMMSE) score of less than 12 or greater than 26
5.2.11 Subjects who are participating in other clinical research studies.
5.2.12 Subjects with any clinically significant laboratory blood test abnormality on his/her screening test.
5.2.13 Patients with significant renal insufficiency (estimated glomerular filtration rate: eGFR <30ml/min) will be excluded.
5.2.14 Subjects with severely impaired hepatic function (liver cirrhosis) will be excluded.
5.2.15 Subjects with blood pressure values less than 100/65mmHg or greater than 159/99mmHg (Grade 1 hypertension, ECS guidelines 2007; escardio.org/guidelines) using an office based BP measurement will be excluded or subjects with blood pressure values less than 105/70mmHg or greater than 140/90mmHg using an Ambulatory BP measurement will be excluded.
5.2.16 Subjects with clinically significant abnormalities in their CT/MRI results which would prevent inclusion in the study.
5.2.17 The medical food stuff Souvenaid® is under exclusion from the study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
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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) |
Clinical Dementia Rating Scale Sum of Boxes (CDR-sb)
Disability Assessment for Dementia (DAD) |
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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 | No |
E.6.5 | Efficacy | No |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
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 | No |
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.8.2.4 | Number of treatment arms in the trial | 2 |
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.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 11 |
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 | Yes |
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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at 82 weeks, thus follow-up after 78 weeks of treatment and 4 weeks after cessation of treatment |
|
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 | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 2 |