Lexette

Plaque Psoriasis Treatment

Lexette is specifically indicated for the topical treatment of plaque psoriasis in patients 18 years of age and older. Plaque psoriasis is a chronic condition that causes skin cells to build up rapidly, resulting in thick, silvery scales and itchy, dry, red patches.

How It Is Used

As a super-high potency corticosteroid, Lexette is used to provide relief from the inflammatory and pruritic (itching) manifestations of the disease. It is typically prescribed for:

• Reducing the thickness of psoriasis plaques
• Calming skin redness and irritation
• Relieving persistent itching

Because of its strength, Lexette is intended for short-term use to manage flare-ups. It is applied directly to the affected skin areas as directed by a healthcare provider to bring symptoms under control.

Mechanism of Action

Lexette contains halobetasol propionate, a super-high potency corticosteroid. It works by suppressing the immune response and reducing inflammation in the area where it is applied.

The medication performs several functions to improve skin symptoms:

• Reducing Inflammation: It prevents skin cells from producing chemicals that lead to swelling and irritation.
• Relieving Itch: By calming the inflammatory response, it reduces the urge to scratch.
• Narrowing Blood Vessels: It acts as a vasoconstrictor, which helps to decrease the redness of the skin.

On a cellular level, corticosteroids are thought to work by inducing certain inhibitory proteins. These proteins block the release of substances like prostaglandins and leukotrienes, which are key drivers of the inflammatory process in conditions such as plaque psoriasis.

Common Side Effects

The most frequently reported side effects of Lexette occur at the site of application. These may include:

• Burning or stinging
• Itching
• Dryness
• Redness
• Headache
• Cold-like symptoms, such as a sore throat or runny nose

Serious Side Effects

While less common, some side effects require immediate medical attention. Contact a healthcare provider if you notice:

• Skin thinning or easy bruising
• Stretch marks
• Spider veins
• Acne or inflammation of the hair follicles
• Changes in skin color
• Signs of a skin infection, such as oozing or swelling

Because this medication is a strong corticosteroid, it can be absorbed through the skin and affect the rest of the body. This is more likely with long-term use or when used over large areas. Systemic side effects may include:

• Adrenal gland suppression, which can cause extreme tiredness or weight loss
• Cushing's syndrome, characterized by weight gain in the face and upper back
• High blood sugar, which may cause increased thirst or frequent urination
• Vision problems, including blurred vision, cataracts, or glaucoma

Systemic Effects and Hormonal Balance

Lexette can be absorbed through the skin into the bloodstream. This may lead to a condition called hypothalamic-pituitary-adrenal (HPA) axis suppression, where the body's natural hormone production is affected. This risk increases when the medication is applied to large surface areas, used for a long duration, or used with occlusive dressings like bandages or plastic wrap.

Systemic absorption may also result in Cushing's syndrome, high blood sugar (hyperglycemia), and the presence of sugar in the urine (glucosuria). Healthcare providers may perform tests to monitor for these effects if the medication is used on large areas of the body.

Local Skin Reactions

Local adverse reactions can occur at the site of application. These may include:

• Skin thinning or stretch marks
• Burning, stinging, or itching
• Dryness or redness
• Inflammation of the hair follicles (folliculitis)
• Acne-like breakouts

If skin irritation or allergic contact dermatitis occurs, the medication is typically discontinued. Allergic reactions are usually diagnosed by a failure of the skin to heal rather than a simple worsening of the condition.

Vision Risks

The use of topical corticosteroids may increase the risk of developing glaucoma or posterior subcapsular cataracts. Avoiding contact with the eyes and reporting any new visual symptoms to a healthcare professional is advised.

Flammability

The foam is flammable. Avoiding fire, open flames, and smoking during and immediately after application is necessary to prevent injury.

Pediatric Use

Children may be at a higher risk for systemic toxicity and hormonal suppression compared to adults due to their larger skin surface area relative to their body weight.

Pregnancy

There are no adequate and well-controlled studies regarding the use of Lexette in pregnant women. In animal studies, halobetasol propionate (the active ingredient in Lexette) has been shown to cause birth defects when administered systemically or topically at high doses. Because animal reproduction studies are not always predictive of human response, Lexette should be used during pregnancy only if the potential benefit to the mother outweighs the potential risk to the developing fetus.

Individuals who are pregnant or planning to become pregnant should discuss the potential risks and benefits of this treatment with their healthcare provider.

Breastfeeding

It is not known whether the topical application of Lexette results in enough systemic absorption for the medication to pass into human breast milk. Because many drugs are excreted in human milk, caution is recommended when Lexette is administered to a breastfeeding person.

To minimize the risk of exposure to the nursing infant, the following precautions are typically advised:

• Avoid application to the breast: Do not apply Lexette directly to the nipple or areola to prevent the infant from accidentally ingesting the medication or coming into direct skin contact with it.
• Use minimal amounts: If treatment is necessary, use the smallest amount of medication required on the affected area for the shortest possible duration.
• Consult a clinician: Discuss the use of topical corticosteroids with a healthcare provider to evaluate the safety of breastfeeding while using this medication.

Dosage Forms

Lexette is supplied as a topical foam. It is a white to off-white foam dispensed from a pressurized aerosol container.

Available Strengths

This medication is available in the following strength:

• Topical foam: 0.05%

FDA Approval and Indication

Lexette (halobetasol propionate) foam, 0.05%, was approved by the U.S. Food and Drug Administration (FDA) in May 2018. It is indicated for the topical treatment of plaque psoriasis in patients 12 years of age and older.

Regulatory Requirements and Safety Guidelines

As a super-high-potency topical corticosteroid, Lexette is subject to specific regulatory guidelines to ensure patient safety. While the medication does not have a boxed warning or a Risk Evaluation and Mitigation Strategy (REMS) program, the FDA-approved labeling includes strict limitations on its use:

• Duration of Treatment: Use should be limited to no more than two consecutive weeks.
• Maximum Dosage: Patients should not use more than 50 grams of the foam per week.
• Age Restrictions: The safety and effectiveness of Lexette have not been established in pediatric patients under 12 years of age.

The FDA also requires labeling to include warnings regarding the risk of systemic absorption. This absorption can lead to reversible hypothalamic-pituitary-adrenal (HPA) axis suppression, Cushing's syndrome, and high blood sugar (hyperglycemia). Monitoring may be required if the drug is applied to large surface areas or used under occlusion.

Insurance and Medicare Coverage

Lexette is a brand-name medication, and its coverage varies by insurance provider. Most commercial insurance plans include Lexette on their formularies, though it may be placed on a higher cost tier, which can result in a higher copay. Medicare Part D and Medicare Advantage plans may also cover Lexette, but coverage is not universal across all plans. Some insurance companies require prior authorization, meaning your healthcare provider must explain why the medication is medically necessary before the plan will pay for it.

Generic Availability

The active ingredient in Lexette, halobetasol propionate, is available as a lower-cost generic in several forms, including creams and ointments. However, the specific foam formulation of Lexette may not always have a direct generic equivalent available at every pharmacy. Choosing a generic version in a different form may help reduce out-of-pocket expenses if the brand-name foam is not covered by your insurance.

Financial Assistance Programs

There are several ways patients may be able to lower the cost of Lexette:

• Manufacturer Savings Cards: The company that makes Lexette often provides savings cards or coupons for patients with commercial insurance to help reduce copayments.
• Patient Assistance Programs: Some programs offer the medication at a reduced cost or for free to individuals who meet specific financial criteria and do not have insurance.
• Pharmacy Discounts: Prices can vary significantly between different retail pharmacies. Using pharmacy discount cards or comparing prices online may help find a lower price.