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Exploring Remission Dynamics and Prognostic Factors in Lichen Planopilaris: A Retrospective Cohort Study
A Lyakhovitsky1,2, T Zilbermintz3, Z Segal1
1Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel.
Dermatology (Basel, Switzerland)
|April 4, 2024
Summary
Lichen planopilaris (LPP) remission takes a median of 46 months, with milder disease and comorbid lichen planus improving outcomes. Significant diagnostic delays highlight the need for earlier intervention in this form of alopecia.
Area of Science:
- Dermatology
- Trichology
- Alopecia Research
Background:
- Lichen planopilaris (LPP) is a primary cicatricial alopecia with limited understanding of its long-term outcomes.
- Previous research has focused on LPP epidemiology, clinical presentation, and treatments, leaving a knowledge gap in remission rates and prognostic factors.
Purpose of the Study:
- To determine the rate and timing of remission in lichen planopilaris.
- To identify prognostic factors associated with achieving complete remission in LPP patients.
Main Methods:
- A retrospective cohort study was conducted.
- 126 patients diagnosed with LPP between 2010 and 2022 at a single tertiary center were included.
- Follow-up duration was a minimum of 6 months.
Main Results:
- Complete remission (CR) was achieved by 43 patients (34.1%), with a median time to CR of 46 months.
- 83 patients did not achieve CR; 35 showed partial improvement, and 48 showed no improvement or worsening.
- Milder disease at presentation and the presence of comorbid lichen planus were associated with higher CR rates.
- Significant diagnostic delays, averaging 33.85 months from onset to diagnosis, were observed.
Conclusions:
- Significant diagnostic delays in LPP contribute to irreversible alopecia and necessitate earlier intervention.
- Disease severity and comorbid lichen planus are potential prognostic factors for LPP remission.
- Current treatments show limited efficacy, underscoring the need for prolonged management strategies to achieve remission in LPP.
