P. Keck et al., ZIPRASIDONE 40 AND 120 MG DAY IN THE ACUTE EXACERBATION OF SCHIZOPHRENIA AND SCHIZOAFFECTIVE DISORDER - A 4-WEEK PLACEBO-CONTROLLED TRIAL/, Psychopharmacology, 140(2), 1998, pp. 173-184
A double-blind, placebo-controlled, multicenter study, was performed t
o evaluate the efficacy and safety of ziprasidone in 139 patients with
an acute exacerbation of schizophrenia or schizoaffective disorder. P
atients were randomized to receive ziprasidone 40 mg/day, 120 mg/day o
r placebo for 28 days. Ziprasidone 120 mg/day was significantly more e
ffective than placebo in improving the BPRS total, CGI-S, BPRS depress
ion cluster and BPRS anergia cluster scores (all P < 0.05), Similarly,
the percentages of patients classified as responders on the BPRS (gre
ater than or equal to 30% reduction) and the CGI improvement (score le
ss than or equal to 2) were significantly greater with ziprasidone 120
mg/day compared with placebo (P < 0.05), The number of patients who e
xperienced an adverse event was similar in all three treatment groups,
and discontinuation due to adverse events was rare (five of 91 zipras
idone-treated patients). The most frequently reported adverse events,
that were more common in either ziprasidone group than in the placebo
group, were dyspepsia, constipation, nausea and abdominal pain. There
was a notably low incidence extrapyramidal side-effects (including aka
thisia) and postural hypotension and no pattern of laboratory abnormal
ities or apparent weight gain. Ziprasidone-treated patients were not c
linically different from placebo-treated patients on the Simpson-Angus
Rating scale, Barnes Akathisia scale and AIMS assessments. These resu
lts indicate that ziprasidone 120 mg/day is effective in the treatment
of the positive, negative and affective symptoms of schizophrenia and
schizoaffective disorder with a very low side-effect burden.