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 (AD) is a neurodegenerative condition that represents the most common cause of cognitive impairment and dementia worldwide. |
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E.1.1.2 | Therapeutic area | Health Care [N] - Population Characteristics [N01] |
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 |
To evaluate the value of quantitative PET amyloid imaging measures for predicting progression within an AD risk probability spectrum (derived from four different dimensions: cognition, other biomarkers, traditional genetic and environmental risk factors and temporal changes in these dimensions) based on quantitative PET amyloid imaging measures, with or without other biomarkers. |
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E.2.2 | Secondary objectives of the trial |
1. To evaluate the value of quantitative PET amyloid imaging, with or without other biomarkers, to predict a) cognitive decline, b) brain atrophy, and c) functional decline. 2. To compare regional quantitative PET amyloid imaging measures and global quantitative PET and CSF amyloid measures for their ability to identify participants most likely to experience subsequent cognitive decline. 3. To assess the relationship between (a) continuous measures of baseline amyloid and cognitive decline; and (b) these continuous measures and clinical outcomes. 4. To determine the agreement between the classifications of brain amyloid status based on (a) quantitative PET imaging and (b) visual amyloid PET image interpretation, and compare their ability to predict subsequent cognitive decline. 5. To determine the optimal methodology for the quantification of amyloid load by amyloid PET imaging, through analysis of biological and technical factors affecting quantitative PET amyloid imaging. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Current or former participants of a Sponsor-approved PC, not demented, and older than 50 years of age will be eligible if they provide separate written informed consent to participate in the AMYPAD PNHS 2. Participants with a suitable baseline biomarker, cognitive and risk factor profile, as determined by the Selection and Feasibility Committee, based on an adaptive selection algorithm that aims to provide optimal representation of the probability spectrum for AD risk; OR participants that have been randomly selected to maintain a mandated nondisclosure policy. 3. Participants who are assessed by the recruiting investigator to be physically fit to undergo PET scanning and able to tolerate the PET scanning procedure for at least the duration of a static scan (20 minutes). |
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E.4 | Principal exclusion criteria |
1. Participants in whom PET scanning or magnetic resonance imaging (MRI) are contraindicated. 2. Participants who are not able to complete the study procedures as judged by the investigator. 3. Participants who have known hypersensitivities to the active ingredients of [18F]flutemetamol and [18F]florbetaben, or the excipients for both products (listed in section 6.1 of the respective Summary of Product Characteristics [SPC]). 4. Women of childbearing potential who are pregnant, planning to become pregnant, or lactating, or do not follow the contraceptive methods recommended by the Clinical Trial Facilitation Group. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary Variables: 1. Composite Centiloid, SUVR and/or BPND values measured from [18F]flutemetamol or [18F]florbetaben PET images 2. Change from baseline in measures of cognitive status and daily functioning, modifiable risk factors, and MRI measures of brain atrophy |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Cross-sectionally at baseline visit of all subjects; Longitudinally at the end of the trial. |
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E.5.2 | Secondary end point(s) |
Secondary Variables: 1. Change from baseline in measures of cognitive status (e.g. RBANS Total Scale Index Score) 2. Change from baseline in MRI measures of brain atrophy 3. Change from baseline in measures of daily functioning 4. Change from baseline in measures of modifiable risk factors 5. Regional SUVR and/or BPND values at baseline 6. Change from baseline in Centiloid, SUVR and BPND values (global and/or regional) 7. Baseline R1 values from dynamic scans 8. Change from baseline in R1 values from dynamic scans 9. Threshold values of Centiloid, SUVR and/or BPND for negative/positive amyloid status that produce the greatest agreement with visual interpretation by a trained nuclear physician or radiologist 10. Threshold values of Centiloid, SUVR and/or BPND for negative/positive/grey-zone amyloid status that produce the highest accuracy with respect to predicting cognitive decline (and/or brain atrophy as measured by MRI) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Cross-sectionally at baseline visit of all subjects; Longitudinally at the end of the trial. |
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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 | 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 | No |
E.8.1.1 | Randomised | No |
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 | 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 | 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 | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 20 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Belgium |
France |
Germany |
Italy |
Netherlands |
Spain |
Sweden |
Switzerland |
United Kingdom |
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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 | 2 |
E.8.9.1 | In the Member State concerned months | 5 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |