Because clinical studies are conducted under widely varying conditions, adverse
reaction rates observed in the clinical studies of a drug cannot be directly
compared to rates in the clinical studies of another drug and may not reflect
the rates observed in practice.
Clinical Studies Experience
VECTICAL (calcitriol ointment) Ointment was studied in two vehicle-controlled studies (419 subjects),
and in one open label study (324 subjects). The table below describes exposure
to VECTICAL (calcitriol ointment) Ointment in 743 subjects, including 239 exposed for 6 months and
116 exposed for one year.
Four hundred and nineteen subjects were treated with VECTICAL (calcitriol ointment) Ointment twice
daily for 8 weeks. The population included subjects ages 13 to 87, males (284)
and females (135), Caucasians (372) and non-Caucasians (47); with mild (105)
to moderate (313) chronic plaque psoriasis.
Selected Adverse Events Occurring in at least 1% of Subjects
in the Two Pooled Vehicle-Controlled Studies
| |
Vectical Ointment
(n=419) |
Vehicle Ointment
(n=420) |
| Discomfort skin |
3% |
2% |
| Pruritus |
1% |
1% |
Among subjects having laboratory monitoring, hypercalcemia was observed in
24% (18/74) of subjects exposed to active drug and in 16% (13/79) of subjects
exposed to vehicle, however the elevations were less than 10% above the upper
limit of normal [see WARNINGS AND PRECAUTIONS]
The open label study enrolled 324 subjects with psoriasis who were then treated
for up to 52 weeks. Adverse events reported at a rate of greater than or equal
to 3% of subjects treated with VECTICAL (calcitriol ointment) Ointment were lab test abnormality (8%),
urine abnormality (4%), psoriasis (4%), hypercalciuria (3%), and pruritus (3%).
Kidney stones were reported in 3 subjects and confirmed in two.
Postmarketing Experience
The following adverse reactions have been identified during world-wide post-approval
use of VECTICAL (calcitriol ointment) Ointment: acute blistering dermatitis, erythema, pruritus, skin
burning sensation, and skin discomfort. Because these reactions are reported
voluntarily from a population of uncertain size, it is not always possible to
reliably estimate their frequency or establish a causal relationship to drug
exposure.