In the crossover phase ( n = @ ) , least squares mean changes in the UPDRS part III score from pre-dose were -@ points with apomorphine and -@ points with placebo , showing that apomorphine , compared with placebo , provided a significantly greater improvement in the UPDRS part III score change ( difference between treatments : -@ -LSB- @ % confidence interval , -@ , -@ -RSB- ; P < @ ) .