Approved Drug Label (PDF)
5
Warnings and Precautions
5.1 Effects on Calcium Metabolism
(Additions and/or revisions
underlined)
In controlled clinical trials
hypercalcemia was observed in subjects exposed to VECTICAL Ointment. If
aberrations in parameters of calcium metabolism occur, treatment should be
discontinued until these parameters have normalized. The effects of VECTICAL
Ointment on calcium metabolism following treatment durations greater than 52
weeks have not been evaluated. Increased absorption may occur with occlusive
use.
VECTICAL Ointment should be
used with caution in patients receiving medications known to increase
the serum calcium level, such as thiazide diuretics, and in patients receiving
calcium supplements or high doses of vitamin D.
6
Adverse Reactions
6.1 Clinical Trials Experience
(Additions and/or revisions
underlined)
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.
VECTICAL
Ointment was studied in two vehicle-controlled trials and one open label
trial, resulting in 743 subjects exposed to
VECTICAL Ointment. Table 1 describes adverse events in subjects treated
with VECTICAL Ointment twice daily for 8 weeks.
The population included
subjects ages 13 to 87 years, males (284) and females
(135), Caucasians (372) and non-Caucasians (47); with mild (105) to moderate
(313) chronic plaque psoriasis.
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, the
elevations were less than 10% above the upper limit of normal.
The open label trial
enrolled 324 subjects with psoriasis who were treated for up to 52 weeks and
included 239 subjects exposed for 6 months and 116 subjects exposed for one
year. Adverse events reported at a rate of greater than or equal to 3% of
subjects treated with VECTICAL Ointment were lab test abnormality (8%), urine abnormality (4%), psoriasis (4%),
hypercalciuria (3%), and discomfort of skin (3%). Kidney stones were
reported in 3 subjects and confirmed in two.
8
Use in Specific Populations
8.1 Pregnancy
(Pregnancy
and Lactation Labeling Rule (PLLR) conversion; additions and/or revisions
underlined)
Risk Summary
Available data
from pregnancies that occurred during the clinical development of VECTICAL
Ointment and published case series of oral and intravenous calcitriol use
in pregnant women have not identified a drug associated risk for
major birth defects, miscarriages, or adverse maternal or fetal outcomes.
In animal
reproduction studies, topical administration of calcitriol to pregnant rabbits
during the period of organogenesis resulted in an increased incidence of fetal
deaths, as well as an increased incidence of minor skeletal abnormalities. The available data do not allow the calculation of relevant comparisons between the systemic exposures of calcitriol observed in
animal studies to the systemic exposures that would be expected in humans after
topical use of VECTICAL Ointment.
The
background risk of major birth defects and miscarriage for the indicated
population is unknown. All pregnancies have a background risk of birth defect,
loss, or other adverse outcomes. In the U.S. general population, the estimated
risk of major birth defects and miscarriage in clinically recognized
pregnancies is 2 to 4% and 15 to 20%, respectively.
Data
Animal Data
Embryo-fetal development studies with calcitriol were performed in
which rats were treated orally at dosages up to 0.9 mcg/kg/day (5.4 mcg/m2/day) and in which rabbits received
topical application of calcitriol ointment (3 ppm) to 6.4% of the body surface
area. No effects on reproductive or fetal parameters were observed in rats. In rabbits, topically applied calcitriol induced a significantly elevated mean post-implantation loss and an increased
incidence of minor skeletal abnormalities due to delayed ossification of the pubic bones. A slightly
increased incidence of skeletal variation (extra 13th rib, reduced ossification of
epiphyses) was also observed. These effects may have been secondary to maternal
toxicity.
8.2
Lactation
(Pregnancy and Lactation Labeling
Rule (PLLR) conversion; additions and/or revisions underlined)
Risk Summary
There are no data on the
presence of calcitriol in human milk, the effects on the breastfed infant or on
milk production after treatment with VECTICAL Ointment. It is not known whether
topical administration of calcitriol could result in sufficient systemic
absorption to produce detectable quantities in human milk. The developmental
and health benefits of breastfeeding should be considered along with the
mother’s clinical need for VECTICAL Ointment and any potential adverse effects
on the breastfed infant from VECTICAL Ointment or from the underlying maternal
conditions.
Clinical Considerations
Advise breastfeeding women
not to apply VECTICAL Ointment directly to the nipple and areola to avoid
direct infant exposure.
8.4
Pediatric Use
(Additions
and/or revisions underlined)
The safety and
effectiveness of VECTICAL Ointment have been established in pediatric
patients age 2 years and older for topical treatment of mild to moderate
psoriasis. Use of VECTICAL Ointment in this age group is supported by two
adequate and well-controlled 8-week trials and an open label trial in adult
subjects, and additional data from trials conducted in pediatric subjects 2 to
17 years of age including;
- a vehicle controlled 8-week trial
in 19 subjects 2 to 12 years of age with mild to moderate plaque psoriasis
- an open-label 8-week safety and
pharmacokinetics (PK) trial in 25 subjects 12 to 17 years of age
- an open-label 14-day safety and PK
trial in 18 subjects 2 to 12 years of age; and
- an open-label 26-week safety and PK
trial in 54 subjects 2 to 17 years of age.
Data from 63
subjects ages 2 to 12 years, and 42 subjects ages 13 to 17 years showed no
significant effects on indices of calcium metabolism. The systemic exposure of
calcitriol in the pediatric subjects was generally comparable to the endogenous
levels observed at baseline. No new safety signals were identified in subjects
2 to 17 years.
The safety and
effectiveness of VECTICAL Ointment in pediatric subjects below the age of 2
years have not been established.
17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)
17 PATIENT COUNSELING INFORMATION
(Additions and/or revisions
underlined)
Advise the
patient to read the FDA-approved patient labeling (Patient Information).
Patients using
VECTICAL Ointment should receive the following information:
This medication is to be used as
directed by the physician. It is for
external use only. This medication is to be applied only to areas of the skin
affected by psoriasis, as directed. It should
be gently rubbed into the skin so that no medication remains visible.
This medication may affect calcium
metabolism. Hypercalcemia has been observed in subjects exposed to this
medicine. Increased absorption may occur with use of occlusive dressings.
Avoid use of more than 100 grams
per week in patients ages 2-6 years and use of more than 200 grams per week in
patients ages 7 years and older.
Instruct patients to report
any signs of adverse reactions to their physician.
Avoid contact with eyes, lips, and
facial skin.
Advise breastfeeding women not to
apply VECTICAL Ointment directly to the nipple and areola to avoid direct infant exposure.