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Summary
Topical minoxidil showed a significant increase in hair growth for alopecia areata patients. However, only one patient had cosmetically satisfying results, and some experienced increased blood pressure.
Area of Science:
- Dermatology
- Pharmacology
Background:
- Alopecia areata is an autoimmune condition causing hair loss.
- Current treatments for alopecia areata have varying efficacy and side effects.
Purpose of the Study:
- To evaluate the efficacy and safety of 1% topical minoxidil for treating alopecia areata.
Main Methods:
- A double-blind, placebo-controlled, crossover study was conducted.
- Twenty-three individuals with alopecia areata participated.
- Treatment involved 3 months of 1% topical minoxidil or placebo.
Main Results:
- Thirteen patients showed increased terminal hair growth with minoxidil compared to placebo (p < 0.005).
- Cosmetically satisfying results were achieved in only one patient.
- Two male patients experienced elevated blood pressure upon minoxidil withdrawal.
Conclusions:
- 1% topical minoxidil demonstrates some efficacy in promoting hair regrowth in alopecia areata.
- The cosmetic outcome is often limited, and potential side effects like increased blood pressure should be monitored.