The Role of Minoxidil in Treatment of Alopecia Areata: A Systematic Review and Meta-Analysis
2024

Minoxidil for Treating Hair Loss

Sample size: 372 publication Evidence: moderate

Author Information

Author(s): Majewski Michał, Gardaś Karolina, Waśkiel-Burnat Anna, Ordak Michał, Rudnicka Lidia

Primary Institution: Medical University of Warsaw

Hypothesis

The study aims to evaluate the efficacy of monotherapy with topical or oral minoxidil in alopecia areata.

Conclusion

Minoxidil, both topical and oral, may be beneficial in monotherapy for patients with alopecia areata, with 5% topical minoxidil showing significantly higher efficacy compared to lower concentrations.

Supporting Evidence

  • Of 244 articles, 13 were considered eligible for further analysis.
  • The response rate for 5% topical minoxidil was 82%.
  • The response rate for less than 5% topical minoxidil was 58%.
  • Oral minoxidil had a response rate of 82%.
  • 5% topical minoxidil is characterized by significantly higher efficacy compared to lower concentrations.

Takeaway

Minoxidil can help people with hair loss, especially when using a stronger version called 5% topical minoxidil.

Methodology

A systematic review and meta-analysis were conducted following PRISMA guidelines, evaluating the efficacy of monotherapy with minoxidil in alopecia areata.

Potential Biases

Potential publication bias identified in some studies.

Limitations

The small number of studies, variability in study design and quality, lack of long-term data, possible publication bias, and absence of randomization in some studies.

Participant Demographics

The study included 372 patients with alopecia areata, comprising 117 women and 106 men, with ages ranging from 3 to 81 years.

Statistical Information

P-Value

0.00003

Confidence Interval

95% CI 0.7–0.93 for 5% topical minoxidil; 95% CI 0.5–0.67 for less than 5% topical minoxidil.

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/jcm13247712

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