Effectiveness of a specific care plan in patients with Alzheimer's disease: cluster randomised trial (PLASA study).
OBJECTIVE
To test the effectiveness of a comprehensive specific care plan in decreasing the rate of functional decline in patients with mild to moderate Alzheimer's disease compared with usual care in memory clinics.


METHODS
Cluster randomised trial.


METHODS
50 memory clinics in France.


METHODS
Patients with Alzheimer's disease (mini-mental state examination score 12-26). 1131 patients were included: 574 from 26 clinics in the intervention group, and 557 from 24 clinics in the usual care (control) group. Memory clinics were the unit of randomisation.


METHODS
The intervention included a comprehensive standardised twice yearly consultation for patients and their caregivers, with standardised guidelines for the management of problems identified during the assessment.


METHODS
The primary outcome measure was change on the Alzheimer's Disease Cooperative Study-activities of daily living scale assessed at 12 and 24 months. Secondary outcome measures were the rate of admission to institutional care and mortality.


RESULTS
At two years the assessment was completed by 58.4% (n=335) of patients in the intervention group and 61.6% (n=343) in the control group. The rate of functional decline at two years did not differ between the groups. The annual rate of change on the Alzheimer's Disease Cooperative Study-activities of daily living was estimated at -5.73 (95% confidence interval -6.89 to -4.57) in the intervention group and -5.96 (-7.05 to -4.86) in the control group (P=0.78).


CONCLUSIONS
A comprehensive specific care plan in memory clinics had no additional positive effect on functional decline in patients with mild to moderate Alzheimer's disease. Future research should aim to determine the effects of more direct involvement of general practitioners.


BACKGROUND
ClinicalTrials.gov NCT00480220.
Gérontopôle, CMRR, Toulouse, France. fatinour@orange.fr
Fati
F
Nourhashemi
Sandrine
S
Andrieu
Sophie
S
Gillette-Guyonnet
Bruno
B
Giraudeau
Christelle
C
Cantet
Nicola
N
Coley
Bruno
B
Vellas
D000203:Activities of Daily Living; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000628:therapy*; D000553:Ambulatory Care / Q000379:methods*; D017028:Caregivers; D016000:Cluster Analysis; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D010347:Patient Care Planning / Q000458:organization & administration*; D016896:Treatment Outcome