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Sorilux

Last reviewed on RxList: 5/17/2019
Drug Description

SORILUX™
(calcipotriene) Foam, 0.005%

For topical use

DESCRIPTION

SORILUX contains the compound calcipotriene, a synthetic vitamin D3 analog, for topical dermatological use.

Chemically, calcipotriene is (5Z,7E,22E,24S)-24-cyclopropyl-9,10-secochola-5,7,10(19), 22-tetraene-lα,3β,24-triol. The structural formula is represented below:

SORILUX™
  (calcipotriene)  Structural Formula Illustration

Molecular Formula: C27H40O3     Molecular Weight: 412.6

Calcipotriene is a white or off-white crystalline substance. SORILUX Foam contains calcipotriene 50 mcg/g in an aqueous-based emulsion foam vehicle consisting of cetyl alcohol, dibasic sodium phosphate, edetate disodium, isopropyl myristate, light mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, stearyl alcohol, dl-α-tocopherol, and white petrolatum. SORILUX (calcipotriene foam) Foam is dispensed from an aluminum can pressurized with a hydrocarbon (propane/butane/isobutane) propellant.

Indications & Dosage

INDICATIONS

SORILUX Foam is indicated for the topical treatment of plaque psoriasis of the scalp and body in patients 12 years and older.

DOSAGE AND ADMINISTRATION

SORILUX Foam is for topical use only. SORILUX Foam is not for oral, ophthalmic, or intravaginal use.

Apply a thin layer of SORILUX Foam twice daily to the affected areas and rub in gently and completely. Avoid contact with the face and eyes.

HOW SUPPLIED

Dosage Forms And Strengths

0.005%, white foam

SORILUX (calcipotriene) Foam, 0.005%, is supplied as follows:

60 g aluminum can - NDC 51862-376-60
120 g aluminum can - NDC 51862-376-12

Storage And Handling

  • Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C – 30°C (59°F – 86°F).
  • Flammable. Contents under pressure. Do not puncture or incinerate. Do not expose to heat or store at temperatures above 120°F (49°C).
  • Keep out of reach of children.

Distributed by: Mayne Pharma, Greenville, NC 27834. Revised: May 2019

SLIDESHOW

Types of Psoriasis: Medical Pictures and Treatments See Slideshow
Side Effects & Drug Interactions

SIDE EFFECTS

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.

SORILUX Foam was studied in four vehicle-controlled trials. A total of 1094 adult subjects with plaque psoriasis, including 654 exposed to SORILUX Foam, were treated twice daily for 8 weeks. Adverse reactions reported in ≥1% of subjects treated with SORILUX Foam and at a higher incidence than subjects treated with vehicle were application site erythema (2%) and application site pain (3%). The incidence of these adverse reactions was similar between the body and scalp.

In an open-label study, 19 pediatric subjects age 12 to less than 17 years applied SORILUX Foam twice daily for 14 days and once on Day 15. Adverse reactions included application site pain, application site pruritus and pruritus [see CLINICAL PHARMACOLOGY and Pediatric Use].

DRUG INTERACTIONS

No Information Provided

Warnings & Precautions

WARNINGS

Included as part of the "PRECAUTIONS" Section

PRECAUTIONS

Flammability

The propellant in SORILUX Foam is flammable. Instruct the patient to avoid fire, flame, and smoking during and immediately following application.

Effects On Calcium Metabolism

Transient, rapidly reversible elevation of serum calcium has occurred with use of calcipotriene. If elevation in serum calcium outside the normal range should occur, discontinue treatment until normal calcium levels are restored.

Patient Counseling Information

Advise the patient to read the FDA-approved patient labeling (PATIENT INFORMATION).

Inform the patient to adhere to the following instructions:

  • Avoid contact with the face and eyes. If SORILUX Foam gets on the face or in or near their eyes, rinse thoroughly with water.
  • Apply SORILUX Foam to the affected skin areas.
  • Apply SORILUX Foam to the scalp when the hair is dry.
  • Talk to your doctor if your skin does not improve after treatment with SORILUX Foam for 8 weeks.
  • Wash your hands after applying SORILUX Foam unless your hands are the affected site.
  • Avoid fire, flame, and smoking during and immediately following application since SORILUX Foam is flammable.
  • Do not place SORILUX Foam in the refrigerator or freezer.

SORILUX is a licensed trademark of Mayne Pharma LLC.

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment Of Fertility

Calcipotriene topically administered to mice for up to 24 months at dose levels of 3, 10, or 30 mcg/kg/day (corresponding to 9, 30, or 90 mcg /m2/day) showed no significant changes in tumor incidence when compared with controls.

The genotoxic potential of calcipotriene was evaluated in an Ames assay, a mouse lymphoma TK locus assay, a human lymphocyte chromosome aberration assay, and a mouse micronucleus assay. All assay results were negative.

Studies in rats at oral doses up to 54 mcg /kg/day (318 mcg /m2/day) of calcipotriene indicated no impairment of fertility or general reproductive performance.

Use In Specific Populations

Pregnancy

Risk Summary

Although there are no available data on the drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes in pregnant women exposed to SORILUX Foam, systemic exposure to calcipotriene is likely to be low [see CLINICAL PHARMACOLOGY].

In animal reproduction studies, oral administration of calcipotriene to pregnant rats and rabbits during the period of organogenesis resulted in an increased incidence of minor skeletal abnormalities, including enlarged fontanelles and extra ribs in rats and an increased incidence of minor skeletal abnormalities, including incomplete ossification of pubic bones and forelimb phalanges in rabbits (see Data). The available data do not allow the calculation of relevant comparisons between the systemic exposure of calcipotriene observed in animal studies to the systemic exposure that would be expected in humans after topical use of SORILUX Foam.

The estimated 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

Embryofetal development studies were conducted with calcipotriene after oral administration in rats and rabbits. Pregnant rats received daily oral administration of calcipotriene during the period of organogenesis. Fetuses from dams dosed with 54 mcg/kg/day (318 mcg/m2/day) exhibited a significantly increased incidence of minor skeletal abnormalities consisting primarily of enlarged fontanelles and extra ribs. The enlarged fontanelles are most likely due to calcipotriene’s effect upon calcium metabolism. There were no effects on the incidence of major malformations in fetuses.

Pregnant rabbits received daily oral administration of calcipotriene during the period of organogenesis. Increased rabbit maternal and fetal toxicity was noted at 12 mcg/kg/day (132 mcg/m2/day). Fetuses from does dosed with 36 mcg/kg/day (396 mcg/m2/day) exhibited a significantly increased incidence of minor skeletal abnormalities including incomplete ossification of pubic bones and forelimb phalanges. There were no effects on the incidence of major malformations in fetuses.

Lactation

Risk Summary

There are no data on the presence of topically administered calcipotriene in human or animal milk, the effects on the breastfed infant, or the effects on milk production. After topical administration of SORILUX Foam, concentrations of calcipotriene in plasma are low, and therefore, concentrations in human milk are likely to be low [see CLINICAL PHARMACOLOGY].

The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for and any potential adverse effects on the breastfed child from SORILUX Foam or from the underlying maternal condition.

Pediatric Use

The safety and effectiveness of SORILUX Foam have been established in pediatric patients age 12 years and older for topical treatment of plaque psoriasis of the scalp and body. Use of SORILUX Foam in this age group is supported by two adequate and well controlled 8-week trials in adults and adolescents 12 years of age and older, with additional data from a 15-day open-label safety and pharmacokinetics study conducted in 19 subjects 12 to less than 17 years of age with psoriasis. Data from 17 subjects in the pharmacokinetic study showed no significant effects on indices of calcium metabolism and no quantifiable calcipotriene concentrations in subjects aged 12 to less than 17 years [see Clinical Studies , CLINICAL PHARMACOLOGY and ADVERSE REACTIONS].

The safety and effectiveness of SORILUX Foam in pediatric patients less than 12 years of age have not been established.

Geriatric Use

Clinical trials of SORILUX Foam did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients.

Overdosage & Contraindications

OVERDOSE

Topically applied calcipotriene can be absorbed in sufficient amounts to produce systemic effects. Elevated serum calcium has been observed with use of topical calcipotriene [see WARNINGS AND PRECAUTIONS].

CONTRAINDICATIONS

SORILUX Foam should not be used by patients with known hypercalcemia.

Clinical Pharmacology

CLINICAL PHARMACOLOGY

Mechanism Of Action

Calcipotriene is a synthetic vitamin D3 analog that has a similar receptor binding affinity as natural vitamin D3. However, the exact mechanism of action contributing to the clinical efficacy in the treatment of psoriasis is unknown.

Pharmacodynamics

Effects on Calcium Metabolism

In 19 subjects with psoriasis aged 12 to less than 17 years treated with SORILUX Foam two times a day for 15 days, there was no significant effect on indices of calcium metabolism including serum albumin adjusted calcium, urine calcium/creatinine ratio, iPTH, alkaline phosphatase, magnesium and phosphorus.

Pharmacokinetics

The systemic absorption of calcipotriene in subjects with psoriasis of the body was evaluated at steady state following application of either SORILUX Foam or calcipotriene ointment to a body surface area of 5% to 10%. In the SORILUX Foam treatment group, 15 out of 16 subjects had calcipotriene plasma concentrations below the limit of quantitation (10 pg/mL), while in the calcipotriene ointment treated group, 5 out of 16 subjects had measurable calcipotriene plasma concentrations at various time points. All measurable plasma calcipotriene concentrations were below 25 pg/mL.

The pharmacokinetics of SORILUX Foam, 0.005% was investigated when applied topically for 15 days to 17 subjects aged 12 to less than 17 years with moderate plaque psoriasis involving a mean body surface area (BSA) of 24%, excluding face and scalp, and a mean scalp involvement of 43%. Systemic concentration of calcipotriene were not quantifiable in any of the subjects (limit of quantification = 10 pg/mL).

The systemic disposition of calcipotriene is expected to be similar to that of the naturally occurring vitamin D. Absorbed calcipotriene is known to be converted to inactive metabolites within 24 hours of application and the metabolism occurs via a similar pathway to the natural hormone.

Clinical Studies

In two multi-center, randomized, double-blind, vehicle-controlled clinical trials a total of 659 subjects with psoriasis were randomized 2:1 to SORILUX Foam or vehicle; subjects applied the assigned treatment twice daily for 8 weeks. Baseline disease severity was graded using a 5-point Investigator Static Global Assessment scale (ISGA), on which subjects scored either “mild” or “moderate” as shown in Table 1.

Table 1. Investigator Static Global Assessment (ISGA) Scale for Body

Disease Severity Grade Definition
Clear 0 No evidence of scaling, erythema, or plaque thickness
Almost clear 1 Occasional fine scale, faint erythema, and barely perceptible plaque thickness
Mild 2 Fine scale with light coloration and mild plaque elevation
Moderate 3 Coarse scale with moderate red coloration and moderate plaque thickness
Severe 4 Thick tenacious scale with deep coloration and severe plaque thickness

Efficacy evaluation was carried out at Week 8 with treatment success being defined as a score of “clear” (grade 0) or “almost clear” (grade 1) and at least 2 grade improvement from the baseline score. Approximately 30% of enrolled subjects were graded as “mild” on the ISGA scale. The study population ranged in age from 12 to 89 years with 10 subjects less than 18 years of age at baseline. The subjects were 54% male and 88% Caucasian. Table 2 presents the efficacy results for each trial.

Table 2. Number and Percent of Subjects Achieving Success for Body at Week 8 in ach Trial

  Trial 1 Trial 2
SORILUX
Foam
N = 223
Vehicle Foam
N = 113
SORILUX
Foam
N = 214
Vehicle Foam
N = 109
Number (%) of Subjects with Treatment Success 31 (41%) 8 (7%) 58 (27%) 17 (16%)

In one trial, subjects graded as “mild” at baseline showed a greater response to vehicle than SORILUX Foam.

Table 3 presents the success rates by disease severity at baseline for each trial.

Table 3. Number and Percent of Subjects Achieving Success for Body by Baseline ISGA Score and by Trial

ISGA Scores at Baseline Trial 1 Trial 2
SORILUX
Foam
(N = 223)
Vehicle
Foam
(N = 113)
SORILUX Foam
(N = 214)
Vehicle Foam
(N = 109)
Mild 2/73 (2.7%) 3/34 (8.8%) 8/56 (14.3%) 4/31 (12.9%)
Moderate 29/150 (19.3%) 5/79 (6.3%) 50/158 (31.6%) 13/78 (16.7%)

In another multi-center, randomized, double-blind, vehicle-controlled clinical trial, a total of 363 subjects with moderate plaque psoriasis of the scalp and body were randomized 1:1 to SORILUX Foam or vehicle. Subjects applied the assigned treatment to the affected areas twice daily for 8 weeks.

Baseline disease severity of the scalp was graded using a 6-point ISGA; a score of "moderate" corresponded to grade 3.

The primary efficacy evaluation for scalp involvement was carried out at Week 8 with treatment success being defined as a score of “clear” (grade 0) or “almost clear” (grade 1). The study population ranged in age from 12 to 97 years with 11 subjects less than 18 years of age at baseline. The subjects were 60% male and 87% Caucasian. Table 4 presents the efficacy results for the trial.

Table 4. Number and Percent of Subjects Achieving Success for Scalp at Week 8

  Trial 3
SORILUX Foam
N = 181
Vehicle Foam
N = 182
Number (%) of Subjects with Treatment Success 74 (41%) 44 (24%)

The contribution to efficacy of individual components of the vehicle has not been established.

Medication Guide

PATIENT INFORMATION

SORILUX
(SOR-i-lux)
(calcipotriene) Foam, 0.005%

Important: SORILUX Foam is for use on the skin only (topical use). Do not use SORILUX Foam in your mouth, eyes, or vagina.

What is SORILUX Foam?

SORILUX Foam is a prescription medicine used on the skin (topical) to treat plaque psoriasis of the scalp and body in people 12 years and older.

It is not known if SORILUX Foam is safe and effective in people under 12 years old.

Do not use SORILUX Foam if you have been told by your healthcare provider that you have a high level of calcium in your blood (hypercalcemia).

Before using SORILUX Foam, tell your healthcare provider about all your medical conditions, including if you:

  • are pregnant or planning to become pregnant. It is not known if SORILUX Foam will harm your unborn baby.
  • are breastfeeding or plan to breastfeed. It is not known if SORILUX Foam passes into your breast milk.
    Talk to your healthcare provider about the best way to feed your baby during treatment with SORILUX Foam.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Know the medicines you take. Keep a list of your medicines with you to show your healthcare provider and pharmacist when you get a new medicine.

How should I use SORILUX Foam?

  • Use SORILUX Foam exactly as your healthcare provider tells you to use it. See the detailed “Instructions for Use” at the end of this leaflet for directions about how to apply SORILUX Foam the right away.
  • SORILUX Foam is usually applied to the affected skin areas 2 times each day.
  • For your scalp, apply SORILUX Foam when your hair is dry.
  • Talk with your healthcare provider if your skin does not improve after 8 weeks of treatment with SORILUX Foam.
  • Wash your hands after applying SORILUX Foam unless you are using the medicine to treat your hands.

What should I avoid while using SORILUX Foam?

  • SORILUX Foam is flammable. Avoid fire, flame, and smoking during and right after you apply SORILUX Foam.
  • Avoid getting SORILUX Foam on your face or in or near your eyes. If SORILUX Foam gets on your face or in your eyes, rinse well with water.

What are the possible side effects of SORILUX Foam?

SORILUX Foam may cause serious side effects, including:

  • Too much calcium in your blood. Your healthcare provider may tell you to stop using SORILUX Foam until your calcium levels become normal.

The most common side effects of SORILUX Foam include redness and pain of the treated skin areas.

These are not all the possible side effects of SORILUX Foam.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

You may also report side effects to Mayne Pharma at 1-844-825-8500.

How should I store SORILUX Foam?

  • Store SORILUX Foam at room temperature, between 68°F to 77°F (20C° to 25°C).
  • Do not store SORILUX Foam in the refrigerator or freezer.
  • Do not expose SORILUX Foam to heat or store at temperatures above 120°F (49°C).
  • Do not puncture or burn the SORILUX Foam can.

Keep SORILUX Foam and all medicines out of the reach of children.

General Information about the safe and effective use of SORILUX Foam.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use SORILUX Foam for a condition for which it was not prescribed. Do not give SORILUX Foam to other people even if they have the same symptoms you have. It may harm them. You can ask your healthcare provider or pharmacist for information about SORILUX Foam that is written for health professionals.

What are the ingredients in SORILUX Foam?

Active ingredient: calcipotriene

Inactive ingredients: cetyl alcohol, dibasic sodium phosphate, dl-α-tocopherol, edetate disodium, isopropyl myristate, light mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, stearyl alcohol, and white petrolatum. The foam is dispensed from an aluminum can pressurized with a hydrocarbon (propane/nbutane/ isobutane) propellant.

Instructions for Use

SORILUX
(SOR-i-lux)
(calcipotriene) Foam, 0.005%

Read this Instructions for Use before you start using SORILUX Foam and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or treatment.

Important Information:

  • SORILUX Foam is for use on the skin only (topical use). Do not use SORILUX Foam in your mouth, eyes, or vagina.
  • Avoid getting SORILUX Foam on your face or in your eyes. If you accidentally get SORILUX Foam on your face or in your eyes, rinse well with water.

How to apply SORILUX Foam to your body:

Follow your healthcare providers instructions on how much SORILUX Foam to use and where to use it. Wash your hands after applying SORILUX Foam unless you are treating areas on your hands.

Step 1. Before applying SORILUX Foam for the first time, break the tiny plastic piece at the base of the can’s rim by gently pushing back (away from the piece) on the nozzle. See Figure A.

Break the tiny plastic piece at the base of the can’s rim - Illustration

Figure A

Step 2: Shake the can of SORILUX Foam before use. See Figure B.

Shake the can of SORILUX Foam before use - Illustration

Figure B

Step 3: Turn the can of SORILUX Foam upside down and press the nozzle. See Figure C.

Turn the can of SORILUX Foam upside down and press the nozzle - Illustration

Figure C

Step 4. Dispense a small amount of SORILUX Foam into the palm of your hand. See Figure D.

Dispense a small amount of SORILUX Foam into the palm of your hand - Illustration

Figure D

Step 5. Use enough SORILUX Foam to cover the affected area with a thin layer. Gently rub the foam into the affected area until it disappears into the skin. See Figures E and F

Gently rub the foam into the affected area until it disappears into the skin 1 - Illustration

Figure E

Gently rub the foam into the affected area until it disappears into the skin 2 - Illustration

Figure F

How to apply SORILUX Foam to your scalp:

Step 6. Apply SORILUX Foam to your scalp when your hair is dry. Part your hair and apply directly on the affected area. See Figure G. Wash your hands after applying SORILUX Foam.

Part your hair and apply directly on the affected area - Illustration

Figure G

This Instructions for Use has been approved by the U.S. Food and Drug Administration.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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