Adapalene

ADAPALENE- adapalene gel
Actavis Pharma, Inc.

1 INDICATIONS & USAGE

Adapalene gel, 0.3% is indicated for the topical treatment of acne vulgaris in patients 12 years of age and older.

2 DOSAGE & ADMINISTRATION

Apply a thin film of adapalene gel, 0.3% to the entire face and any other affected areas of the skin once daily in the evening, after washing gently with a non-medicated soap. Avoid application to the areas of skin around eyes, lips, and mucous membranes. A mild transitory sensation of warmth or slight stinging may occur shortly after the application of adapalene gel, 0.3%. Patients should be instructed to minimize sun exposure. Patients may be instructed to use moisturizers for relief of dry skin or irritation.

If therapeutic results are not noticed after 12 weeks of treatment, therapy should be re-evaluated.

For topical use only. Not for ophthalmic, oral or intravaginal use.

3 DOSAGE FORMS & STRENGTHS

Each gram of adapalene gel, 0.3% contains 3 mg adapalene in an off-white aqueous gel.

4 CONTRAINDICATIONS

Adapalene gel, 0.3% should not be administered to individuals who are hypersensitive to adapalene or any of the components in the gel vehicle.

5 WARNINGS AND PRECAUTIONS

5.1 Ultraviolet Light and Environmental Exposure

Exposure to sunlight, including sunlamps, should be minimized during use of adapalene gel, 0.3%. Patients who normally experience high levels of sun exposure, and those with inherent sensitivity to sun, should be warned to exercise caution. Use of sunscreen products and protective clothing over treated areas is recommended when exposure cannot be avoided. Weather extremes, such as wind or cold, also may be irritating to patients under treatment with adapalene gel, 0.3%.

5.2 Local Cutaneous Reactions

Certain cutaneous signs and symptoms of treatment such as erythema, scaling, dryness, and stinging/burning were reported with use of adapalene gel, 0.3%. These were most likely to occur during the first four weeks of treatment, were mostly mild to moderate in intensity, and usually lessened with continued use of the medication. Depending upon the severity of these side effects, patients should be instructed to either use a moisturizer, reduce the frequency of application of adapalene gel, 0.3% or discontinue use.

Avoid contact with the eyes, lips, angles of the nose, and mucous membranes. The product should not be applied to cuts, abrasions, eczematous or sunburned skin. As with other retinoids, use of “waxing” as a depilatory method should be avoided on skin treated with adapalene.

As adapalene gel, 0.3% has the potential to induce local irritation in some patients, concomitant use of other potentially irritating topical products (medicated or abrasive soaps and cleansers, soaps and cosmetics that have a strong drying effect and products with high concentrations of alcohol, astringents, spices, or lime) should be approached with caution.

5.3 Allergic/ Hypersensitivity Reactions:

Reactions characterized by symptoms such as pruritus, face edema, eyelid edema, and lip swelling, requiring medical treatment have been reported during postmarketing use of adapalene. A patient should stop using adapalene gel, 0.3% and consult a doctor if experiencing allergic or anaphylactoid/anaphylactic reactions (e.g., skin rash, pruritus, hives, chest pain, edema, and shortness of breath) during treatment.

6 ADVERSE REACTIONS

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reactions 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 the multi-center, controlled clinical trial, signs and symptoms of local cutaneous irritation were monitored in 258 acne patients who used adapalene gel, 0.3% once daily for 12 weeks. Of the patients who experienced cutaneous irritation (erythema, scaling, dryness, and/or burning/stinging), the majority of cases were mild to moderate in severity, occurred early in treatment and decreased thereafter. The incidence of local cutaneous irritation with adapalene gel, 0.3% from the controlled clinical study is provided in the following table:

Table 1: Physician assessed local cutaneous irritation with adapalene gel, 0.3%
Incidence of Local Cutaneous Irritation with Adapalene Gel, 0.3% from Controlled Clinical Study
(N = 253*)
Maximum Severity Scores Higher Than Baseline
Mild Moderate Severe
* Total number of subjects with local cutaneous data for at least one post-Baseline evaluation.
Erythema 66 (26.1%) 33 (13.0%) 1 (0.4%)
Scaling 110 (43.5%) 47 (18.6%) 3 (1.2%)
Dryness 113 (44.7%) 43 (17.0%) 2 (0.8%)
Burning/Stinging 72 (28.5%) 36 (14.2%) 9 (3.6%)
Table 2: Patient reported local cutaneous adverse reactions with adapalene gel, 0.3%
Adapalene Gel, 0.3% Vehicle Gel
N=258 N=134
* Selected adverse reactions defined by investigator as Possibly, Probably or Definitely Related
Related* Adverse Reactions 57 (22.1%) 6 (4.5%)
Dry Skin 36 (14%) 2 (1.5%)
Skin Discomfort 15 (5.8%) 0 (0.0%)
Desquamation 4 (1.6%) 0 (0.0%)

Related adverse reactions from the controlled clinical trial that occurred in greater than 1% of patients who used adapalene gel, 0.3% once daily included: dry skin (14.0%), skin discomfort (5.8%), pruritus (1.9%), desquamation (1.6%), and sunburn (1.2%). The following selected adverse reactions occurred in less than 1% of patients: acne flare, contact dermatitis, eyelid edema, conjunctivitis, erythema, pruritus, skin discoloration, rash, and eczema.

In a one-year, open-label safety study of 551 patients with acne who received adapalene gel, 0.3%, the pattern of adverse reactions was similar to the 12-week controlled study.

6.2 Postmarketing Experience

The following adverse reactions have been identified during post approval use of adapalene: skin irritation, application site pain, face edema, eyelid edema, lip swelling, and angioedema. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate the frequency or establish a causal relationship to drug exposure.

7 DRUG INTERACTIONS

7.1 Concomitant Topical Medications

As adapalene gel, 0.3% has the potential to induce local irritation in some patients, concomitant use of other potentially irritating topical products (medicated or abrasive soaps and cleansers, soaps and cosmetics that have a strong drying effect, and products with high concentrations of alcohol, astringents, spices, or lime) should be approached with caution. Particular caution should be exercised in using preparations containing sulfur, resorcinol, or salicylic acid in combination with adapalene gel, 0.3%. If these preparations have been used, it is advisable not to start therapy with adapalene gel, 0.3%, until the effects of such preparations have subsided.

No formal drug-drug interaction studies were conducted with adapalene gel, 0.3%.

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