Reversible Hair Loss in Lichen Planopilaris: Regrowth With Low-Dose Naltrexone and Platelet-Rich Plasma

J Drugs Dermatol. 2022 Jun 1;21(6):671-673. doi: 10.36849/JDD.6810.


Lichen planopilaris (LPP) is a cicatricial alopecia that presents with patchy or diffuse hair loss at the vertex or parietal scalp. The literature has limited evidence on treatments for this challenging disease, with most reports involving small groups of patients with varied or suboptimal clinical responses. Amongst individuals who do respond to therapy and eventually achieve disease remission, hair regrowth within scarred alopecic patches is rare.1 Herein, we report a patient with biopsy confirmed LPP who demonstrated remarkable hair regrowth at a previously scarred alopecic patch after initiating low-dose naltrexone (LDN) and platelet-rich plasma (PRP), despite minimal response to 4 months of prior therapy with intralesional corticosteroids, topical clobetasol, topical minoxidil, finasteride, doxycycline, and ketoconazole shampoo. This case highlights the importance of remaining flexible and diligent in therapeutic approaches to LPP and the need for more robust literature on prognosis and treatment options for LPP patients. J Drugs Dermatol. 2022;21(6):671-673. doi:10.36849/JDD.6810.

Publication types

  • Case Reports

MeSH terms

  • Alopecia / diagnosis
  • Alopecia / drug therapy
  • Alopecia Areata*
  • Cicatrix / pathology
  • Humans
  • Lichen Planus* / diagnosis
  • Lichen Planus* / drug therapy
  • Lichen Planus* / pathology
  • Naltrexone / therapeutic use
  • Platelet-Rich Plasma*


  • Naltrexone

Supplementary concepts

  • Lichen planus follicularis