Apremilast in the treatment of pityriasis lichenoides et varioliformis acuta: a case report.

OBJECTIVES

To evaluate the efficacy and safety of apremilast, a phosphodiesterase-4 (PDE-4) inhibitor, in treating pityriasis lichenoides et varioliformis acuta (PLEVA) and explore its potential mechanisms.

METHODS

We present a 16-year-old male with refractory PLEVA who failed conventional therapies (systemic corticosteroids, acitretin). Treatment with oral apremilast (30 mg twice daily) was initiated.

RESULTS

Significant improvement was observed within 1 week, with near-complete clearance by 8 weeks. No relapse or adverse events occurred during 12-month follow-up.

CONCLUSIONS

Apremilast may be a safe and effective option for refractory PLEVA.