Review Article

PPAR-γ Agonists and Their Role in Primary Cicatricial Alopecia

Table 3

Clinical trials of pioglitazone in the treatment of primary cicatricial alopecia.

Authors, yearStudy typeTreatmentOutcome

Mirmirani and Karnik, 2009 [52]Case report:
(i) 1 patient with LPP
(i) Oral pioglitazone hydrochloride 15 mg/day for 14 months(i) 2 months: clinical improvement
(ii) 6 months: marked decrease of inflammation
(iii) 1 year: remained symptom-free

Baibergenova and Walsh, 2012 [53]Case series:
(i) 21 patients with LPP
(ii) 2 patients with FAPD
(iii) 1 patient with FFA
(i) Oral pioglitazone hydrochloride 15 mg/day, increased to 30 mg/day if there is no ADR
(ii) Concurrent treatments were variably used as needed
(i) 5 patients: remission
(ii) 12 patients: improvement
(iii) 3 patients: no improvement
(iv) ADR in 4 patients leading to withdrawal: calf pain, lightheadedness, dizziness and hives

Spring et al., 2013 [54]Case series:
(i) 22 patients with LPP
(i) Oral pioglitazone hydrochloride 15 mg/day for 1 year
(ii) Adjuvant treatments were variably used as needed
(i) 3 patients: remission and no relapse
(ii) 5 patients: improvement with lower disease activity
(iii) 4 patients: improvement but symptoms relapsed
(iv) 10 patients: negative result

Mesinkovska et al., 2015 [55]Case series:
(i) 18 patients with LPP
(ii) 4 patients with FFA
(i) Oral pioglitazone hydrochloride 15 mg/day for median of 10.5 months(i) 16 patients: marked improvement
(ii) 5 patients: stable of disease
(iii) 1 patient: progression of disease
(iv) ADR: lower extremities edema, weight gain, dizziness, resistant hypertension, mild transaminitis

LPP: lichen planopilaris, FFA: frontal fibrosing alopecia, FAPD: fibrosing alopecia in pattern distribution, and ADR: adverse drug reactions.