Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse
reaction rates observed in the clinical trials of a drug cannot be directly
compared to rates in the clinical trials of another drug and may not reflect
the rates observed in practice.
In controlled, clinical trials with CLOBEX® (clobetasol propionate spray) Spray, 0.05%, the most common adverse reaction was burning at the site of application [40% of subjects treated
with CLOBEX® (clobetasol propionate spray) Spray, 0.05% and 47% of subjects treated with Spray Vehicle].
Other commonly reported adverse reactions for CLOBEX® (clobetasol propionate spray) Spray, 0.05% and Spray
Vehicle, respectively, are noted in Table 1.
Table 1 : Commonly Occurring Adverse Reactions ( ≥ 1% Incidence)
| Adverse Reaction |
Clobetasol Propionate 0.05% Spray
(N=120) |
Vehicle Spray
(N=120) |
| System Organ Class |
| General disorders and administration site conditions |
50 (42%) |
56 (47%) |
| Application site burning |
48 (40%) |
56 (47%) |
| Application site dryness |
2 (2%) |
0 (0%) |
| Application site irritation |
1 (1%) |
0 (0%) |
| Application site pain |
1 (1%) |
2 (2%) |
| Application site pigmentation changes |
1 (1%) |
0 (0%) |
| Application site pruritus |
4 (3%) |
3 (3%) |
| Infections and infestations |
17 (14%) |
12 (10%) |
| Nasopharyngitis |
6 (5%) |
3 (3%) |
| Pharyngitis streptococcal |
1 (1%) |
0 (0%) |
| Upper respiratory tract infection |
10 (8%) |
2 (2%) |
| Skin and subcutaneous tissue disorders |
4 (3%) |
2 (2%) |
| Eczema asteatotic |
2 (2%) |
0 (0%) |
Most local adverse reactions were rated as mild to moderate and they are not
affected by age, race or gender.
Systemic absorption of topical corticosteroids has produced hypothalamic-pituitary-adrenal
(HPA) axis suppression, manifestations of Cushing's syndrome, hyperglycemia,
and glucosuria in some patients.
Postmarketing Experience
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.
The following adverse reactions have been identified during post-approval use
of CLOBEX® (clobetasol propionate spray) Spray, 0.05%.
Skin: Burning, pruritus, erythema, pain, irritation, rash, peeling,
urticaria, and contact dermatitis.