What is alopecia areata?

Alopecia areata is an autoimmune disease where the immune system mistakenly attacks hair follicles, causing them to stop producing hair. It is not caused by stress or poor nutrition — it is a true autoimmune condition. The hair follicle is not permanently destroyed, which is why regrowth is possible with treatment.

Is alopecia areata curable?

There is no cure, but it is highly treatable. JAK inhibitor medications (Olumiant, Litfulo, Leqselect) have achieved significant hair regrowth in 30–40% of severe patients in clinical trials. Mild cases often resolve on their own.

How do JAK inhibitors work for alopecia areata?

JAK inhibitors block the JAK-STAT signaling pathway that drives immune attack on hair follicles. By blocking JAK enzymes, they reduce immune activation around follicles, allowing them to resume hair production. They must be taken continuously — hair loss typically returns when medication is stopped.

How much does alopecia areata treatment cost?

JAK inhibitors list at $50,000–$80,000/year. Manufacturer co-pay assistance programs can bring commercially insured patients costs to near-$0/month. Eli Lilly (Olumiant), Pfizer (Litfulo), and Sun Pharma (Leqselect) all have programs.

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Alopecia Areata

Alopecia areata is an autoimmune disease where the immune system attacks hair follicles, causing sudden patchy hair loss on the scalp, face, and body. New JAK inhibitor medications (Olumiant, Litfulo, Leqselect) have transformed treatment outcomes for moderate-to-severe cases — achieving 30–40% scalp coverage regrowth in clinical trials.

📊 Affects ~7 million Americans — 1 in 1,000 people. Onset can occur at any age. Most cases are patchy and reversible, but ~5% progress to total scalp or full body hair loss.

alopecia areata hair loss autoimmune hair loss JAK inhibitor hair Olumiant Litfulo

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👥 ~7 million in US · Patients in US

🏥 Dermatology · Specialty

💊 3 available · FDA-approved drugs

FDA-Approved Treatments

Current approved therapies — what they are, who makes them, and what to ask your doctor.

Olumiant

baricitinib · Eli Lilly

JAK Inhibitor (oral)

First FDA-approved systemic treatment for severe alopecia areata (June 2022). 36–39% of patients achieve at least 80% scalp coverage at 36 weeks.

💰 ~$80,000/year list price Oral daily pill ✓ Patient Assist

Litfulo

ritlecitinib · Pfizer

JAK3/TEC Inhibitor (oral)

Approved June 2023 for severe alopecia in adults and adolescents ≥12 years. First approval in adolescents.

💰 ~$50,000/year list price Oral daily pill ✓ Patient Assist

Leqselect

deuruxolitinib · Sun Pharma

JAK1/JAK2 Inhibitor (oral)

Approved July 2024 for severe alopecia areata in adults.

💰 TBD — recently approved Oral twice daily ✓ Patient Assist

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📋 Newly Diagnosed Guide

Newly diagnosed with alopecia areata? Here's what actually matters.

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1. See a dermatologist who knows alopecia — not just any derm

Find a board-certified dermatologist with hair loss experience. The NAAF provider directory (naaf.org) is the best starting point.

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2. Ask specifically about JAK inhibitors if your disease is severe

If you have >50% scalp hair loss, ask about Olumiant, Litfulo, or Leqselect. These are FDA-approved for severe alopecia areata.

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3. Patient assistance programs exist — start there before worrying about cost

All three JAK inhibitors have co-pay programs that can bring costs to near-$0 for commercially insured patients.

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Frequently Asked Questions

Real questions from patients and caregivers — answered in plain English.