Impact of Controlling Vascular Risk Factors on the Progression of Alzheimer's Disease
COVARAD
4 other identifiers
interventional
304
1 country
21
Brief Summary
Three quarters of patients with Alzheimer's disease have at least one vascular risk factor (VRF). Vascular brain lesions are present in most Alzheimer's patients (especially older ones). This cerebrovascular disease potentiates Alzheimer's lesions in early-stage disease. Many research studies have shown that VRFs are also risk factors for Alzheimer's disease; this is true for arterial hypertension and dyslipidaemia in particular and, to a lesser extent, diabetes and cardiopathy. Moreover, recent drug trials (SYST-EUR, PROGRESS and HOPE) have indicated that antihypertensive medications can prevent the appearance of dementia (and notably Alzheimer's disease) in over-60 hypertensive subjects. An observational study of 233 Alzheimer's patients with an average follow-up period of 4 years has shown that the annual decline in the Mini-Mental State Examination (MMSE) score was lower in patients in whom all the VRFs were being treated than in patients in whom no VRFs were being treated (1.5 ± 2.5 points versus 2.5 ± 2 points, respectively; p\<0.04).1 However, it is not currently known whether optimal treatment of VRFs can influence the progression and prognosis of Alzheimer's disease. Answering this question could have a significant impact on public health.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Mar 2010
Longer than P75 for not_applicable
21 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 15, 2010
CompletedFirst Submitted
Initial submission to the registry
August 23, 2011
CompletedFirst Posted
Study publicly available on registry
August 25, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2022
CompletedMay 24, 2022
May 1, 2022
12.1 years
August 23, 2011
May 23, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
ADAS-Cog
18 months
Secondary Outcomes (9)
MMSE
18 months
MoCA
18 months
VADAS-Cog
18 months
Trail Making Test
18 months
ADL-ADCS
18 months
- +4 more secondary outcomes
Study Arms (2)
standard care
OTHERFollow up with city doctor with recommendation HAS French guidelines
optimal care of VRF
EXPERIMENTALMonitoring according to the strict recommendations of the HAS French guidelines
Interventions
VRF of AD patients will be treated optimally in strict compliance with the French HAS guidelines concerning targets for blood pressure, glycaemia and blood lipid levels, in accordance with standardized therapeutic regimens.
AD patients will be followed with the city doctor and the letter t will be send for remember French HAS guidelines
Eligibility Criteria
You may qualify if:
- Subjects aged 60 or over
- Subjects with Alzheimer's disease, according to the NINCDS/ADRDA diagnostic criteria 71
- MMSE \> 18
- Subjects with at least one VRF (whether treated or not): arterial hypertension (defined as SBP/DBP ≥ 140/90 mmHg in at least three different consultations or, for ambulatory measurements, \> 130/80 mmHg with a Holter recorder or \> 135/85 mmHg with a self-measurement device), type 2 diabetes (defined as a glycaemia value over 1.26 g/l (7 mmol/l) after an 8-hour fast (confirmed on two occasions), dyslipidaemia (defined as an LDL cholesterol level \> 1.6 g/l or 1.3 or 1 g/l, depending on the patient's risk level)
- Subjects having agreed to participate in the study (provision of informed consent).
- Subjects accompanied by a person likely to provide information on the patient (during the visit or over the phone).
You may not qualify if:
- Any other disease that might interfere with the evaluation of cognitive disorders.
- No formal education or a poor understanding of French (interfering with administration of the neuropsychological tests).
- Major physical problems likely to interfere with administration of the tests (poor eyesight, hearing, etc.).
- Non-Alzheimer's dementia (isolated vascular dementia, Lewy body dementia, frontotemporal dementia, etc.)
- Psychotropic drugs likely to modify the patient's non-stabilized cognitive state.
- Patients with a history of cardiovascular events can be included (randomization will be balanced in terms of this criterion).
- Participation in a therapeutic clinical trial during the study period.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Hospital, Lillelead
- Ministry of Health, Francecollaborator
Study Sites (21)
Chu Amiens Picardie
Amiens, France
CH ARRAS
Arras, France
Centre Hospitalier Bethune Beuvry
Béthune, France
CH Boulogne
Boulogne-sur-Mer, France
Ch Calais -
Calais, France
CH de DENAIN
Denain, France
CH de DOUAI
Douai, France
Ch Dunkerque
Dunkirk, France
Ch Le Quesnoy
Le Quesnoy, France
Ch Dr.Schaffner de Lens
Lens, France
CMRR Lille hopital Roger Salengro
Lille, 59037, France
Hôpital des Bâteliers, CHU
Lille, 59037, France
CH Saint-Philibert, GHICL
Lomme, France
Hu Paris Centre Site Broca Aphp - Paris
Paris, France
CH de ROUBAIX
Roubaix, France
Chu Rouen
Rouen, France
Ch Region de St-Omer
Saint-Omer, France
Groupe Hospitalier Seclin Carvin -
Seclin, France
Chu de Bordeaux - Talence
Talence, 33404, France
Ch Tourcoing
Tourcoing, France
CH Valenciennes
Valenciennes, France
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Florence PASQUIER, MD
Univ Lille Nord de France, clinique neurologique, Centre Mémoire de Ressources et de Recherche - CHRU Lille
- PRINCIPAL INVESTIGATOR
Marie-Anne MACKOWIAK, MD
Univ Lille Nord de France, clinique neurologique, Centre Mémoire de Ressources et de Recherche - CHRU Lille
- PRINCIPAL INVESTIGATOR
Didier HANNEQUIN, MD
CHU Rouen
- PRINCIPAL INVESTIGATOR
Olivier GODEFROY, MD
CHU Amiens
- PRINCIPAL INVESTIGATOR
Muriel RAINFRAY, MD
University Hospital, Bordeaux
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 23, 2011
First Posted
August 25, 2011
Study Start
March 15, 2010
Primary Completion
May 1, 2022
Study Completion
May 1, 2022
Last Updated
May 24, 2022
Record last verified: 2022-05
Data Sharing
- IPD Sharing
- Will not share