Galantamine treatment in Alzheimer’s
disease with cerebrovascular disease:
responder analyses from a randomized,
controlled trial (GAL-INT-6)
T Erkinjuntti Memory Research Unit, Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland.
S Gauthier McGill Center for Studies in Aging, Montreal, QC, Canada.
R Bullock Kingshill Research Centre, Department of Old Age Psychiatry, Swindon, UK.
A Kurz Technische Universität München, Munich, Germany.
G Hammond Janssen-Cilag European Medical Affairs, High Wycombe, UK and Neuss Germany.
S Schwalen Janssen-Cilag European Medical Affairs, High Wycombe, UK and Neuss Germany.
Y Zhu Ortho-McNeil Janssen Scientific Affairs, L.L.C., Titusville, NJ, USA.
R Brashear Johnson & Johnson Pharmaceutical Research and Development, L.L.C., Titusville, NJ, USA.
Journal of Psychopharmacology
22(7) (2008) 761–768
©
2008 British Association
for Psychopharmacology
ISSN 0269-8811
SAGE Publications
Los Angeles, London,
New Delhi and Singapore
10.1177/0269881107083028
Original Papers
Introduction
There is growing evidence that Alzheimer’s disease (AD)
frequently co-exists with significant cerebrovascular (CVD) pathol-
ogy (Jellinger, 2002; Jellinger and Attems, 2006; Jellinger, 2007).
Clinically, this overlap is AD with cerebrovascular disease (AD
with CVD). The term ‘mixed dementia’ is sometimes used to
describe this condition, but is also used to describe vascular demen-
tia with both cortical and subcortical features so AD CVD is
more precise. Clinical differentiation of AD from AD with stroke
history or vascular risk factors is complicated by symptom overlap
(Lopez et al., 2005; Jellinger, 2007). A diagnosis of AD does not
preclude the presence of CVD, and dual diagnosis is important.
Relative with AD alone, AD with CVD may involve a more
Abstract
Alzheimer’s disease combined with cerebrovascular disease (AD with CVD) is
associated with progressive decline, with CVD impacting AD onset and severity
of progression. Subjects with confirmed diagnosis of AD with CVD were treated
with galantamine during a six-month, randomized, placebo-controlled trial
(N 285). Responder analyses were performed for cognitive, behavioural and
functional outcome measures. Galantamine treatment resulted in significantly
greater cognitive and functional improvements compared with placebo at six
months, and a significantly higher percentage of treatment responders. The
proportion of responders demonstrating improved or maintained cognition on
the 11-item AD assessment scale-cognitive subscale (ADAS-cog/11) was 60.5%
for galantamine versus 46.0% for placebo (P 0.013). The proportion of
patients responding by at least four-points on the ADAS-cog/11 was signifi-
cantly greater for the galantamine group compared with placebo (33.6% versus
17.2%; P 0.003). Seventy-five percent of galantamine-treated subjects
improved or remained stable as assessed by CIBIC-plus compared with 53.6%
on placebo (P 0.0006). Significantly higher responder rates were observed
with galantamine for behaviour (64.9% versus 56.6%; P 0.024), and numeri-
cally favourable responder rates were seen with galantamine for activities of
daily living. Treatment-emergent adverse events were generally related with the
gastrointestinal system (nausea 20% versus 10%; vomiting 12% versus 5%;
galantamine and placebo groups, respectively). Three deaths occurred during
double-blind treatment: 2 of 188 subjects receiving galantamine, and 1 of 97
subjects receiving placebo. These findings are consistent with a broad range of
cognitive, functional and behavioural benefits with galantamine across the
spectrum of AD and AD with CVD.
Keywords
Alzheimer disease, dementia, cerebrovascular accident, cardiovascular dis-
eases, vascular dementias, galantamine
Corresponding author: Dr Susanne Schwalen, Janssen-Cilag GmbH, Raiffeisenstrasse 8, 41470 Neuss, Germany. Email: sschwale@jacde.jnj.com
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