Calcipotriol, a non-calcemic vitamin D3 analogue, inhibits the prolife
ration and is necessary for final differentiation of keratinocytes. Th
e aim of the present study was to determine the efficacy and tolerabil
ity of calcipotriol ointment in patients treated for 6 weeks. Twenty p
atients with chronic plaque-type psoriasis were treated twice daily wi
th calcipotriol ointment 50 ng/g. After 6 weeks' treatment there was a
marked and statistically significant decrease in the PASI score value
s for 17 patients, no improvement was seen in 1 patient and local adve
rse events occurred in 2. Hypercalcemia or other laboratory abnomaliti
es did not develop in any patient.