For the entire group of 22 subjects, the difference from baseline to endpoint on each scale was significant (Table 1). The difference from baseline to the final value on each scale was also significant for the subjects who completed the clozapine trial but less for those who did not. Mean improvements of 56.7%, 56.6%, and 39.1% were seen on the BPRS, Young Mania Rating Scale, and CGI, respectively, for the entire group of subjects (N=22). Seventeen of the 22 subjects (77.3%) experienced at least a 20% improvement in scores on all three scales (the predetermined definition of clinical response). Ten subjects (45.5%) had at least a 50% improvement in scores on all three scales. For the 14 patients who completed the clozapine trial, mean improvements of 72.7%, 75.3%, and 55.7% were seen on the BPRS, Young Mania Rating Scale, and CGI, respectively. All 14 completers had at least a 20% improvement in scores on all three scales; 71.4% (N=10) of these patients had at least a 50% improvement in scores on all three scales.