| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Moderate to severe Alzheimer s disease |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 8.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10009843 |  
| E.1.2 | Term | Cognitive deterioration |  | 
| 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 study the effect of Memantine drug treatment on brain structure and function in moderate to severe Alzheimer s disease patients |  | 
| E.2.2 | Secondary objectives of the trial | 
| To study the effect of Memantine drug treatment throuth the improvement in clinical and neuropsychological assessment |  | 
| E.2.3 | Trial contains a sub-study | Information not present in EudraCT | 
| E.3 | Principal inclusion criteria | 
| - age at baseline at least 50 years;  - MRI or TC  tomography computerized  done within 12 months before the recruitment in agree with the NINCDS-ADRDA criteria for probable AD;  - AD patients with a MMSE score equal or higher than 10.  - Moderate AD subjects in stable therapy with anticholinesterase inhibitors for at least 3 months;  - drugs permitted at stable doses for at least 2 weeks before the recruitment  antidepressive, anti-inflammatory, antiipertensive, antipsichotics atypical, vitamine E  1200 mg/day , anticoagulants, blue pills, diuretics, ipnotics. |  | 
| E.4 | Principal exclusion criteria | 
| - patients with B12 or folic acid clinically significative deficits;  - patients with other diseases at time of baseline or not pharmacological corrected such as pulmonary, gastrointestinal, nephritic, cardiovascular;  - patients with other psychiatric or central nervous system diseases, in excess of those ones necessary to diagnose probable AD;  - patients with a score at Hachinski modified scale more than 4  Rosen WG, et al. 1980 . |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Cognitive performance improvement, more precisely a reaction time reduction and greater accuracy of answers in memantine-treated patients |  | 
| 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 | Information not present in EudraCT | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | Information not present in EudraCT | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | Information not present in EudraCT | 
| 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) | Yes | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | No | 
| 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.8.3 | 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 | 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 | Information not present in EudraCT | 
| 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 | 6 | 
| 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 | 6 |