Review Article

Treatment of Frontal Fibrosing Alopecia

Table 1

Details of treatment modalities hired for FFA treatment.

Author/type of studyNR of PTs (gender)/mean age of PTsDX (HISTOLOGY)/mean of disease durationTherapeutic regimenOutcome measurementOverall response to treatment (improved, stabilized, worsened)Follow-up duration
Agent (number or percent of administered patients)DoseDuration

Gkini et al. [13]/retrospective analysis40 (f)/65.88 ± 8.18 yFFA (yes)/not available(i) ITAIs1 (intralesional triamcinolone acetonide injections) (on scalp: 10 mg/ml (10%)/on eyebrow: 5 mg/ml (5%))(i) 0.1 ml/cm2 (on scalp)/0.125 ml/cm2 (on eyebrow)4 sessions of ITAIsManagement of hairline recessionStabilized (n = 40)6 m–4 y
ITAIs was repeated every 3 months(Stop of hair loss with no more disease progression at f/u sessions)

Pirmez et al. [14]/prospective observational study3 (f)/49–53 yFFA (yes)/NA(i) Oral isotretinoin(i) 20 mg/day for 1 month then titrated to 0.5 mg/kg/day for 2 months (40 mg/day in all 3 patients)3 mImprovement of facial papulesImproved (n = 3)3 m
(Facial papules had completely vanished or considered minimal)

Batra et al. [15]/case report1 (f)/45 yFFA (yes)/4 y(i) Oral finasteride(i) 5 mg/D17 mHair regrowth along the hairline and trichoscopyImproved (n = 1) (elimination of hyperkeratosis and inflammation on trichoscopy, and hair regrowth was seen)NA
(ii) Oral HCQ (Hydroxychloroquine)(ii) 200 mg/BD
(iii) ITAIs(iii) Triamcinolone acetonide (2.5 mg/mL), monthly
(iv) Topical minoxidil 5% solution(iv) 1 drop/BD

Diehl et al. [16]/case report1 (f)/56 yFFA (yes)/3 y(i) HCQ(i) NA2 mHair regrowthWorsened (n = 1) (there was only some vellus hair growth at the site of applying minoxidil solution)NA
(ii) ITAIs(ii) Triamcinolone 3 mg/mL (with 1 mm given monthly in each temporal area)
(iii) Doxycycline monohydrate(iii) 100 mg BD
(iv) Topical minoxidil 5%(iv) BD

Lee et al. [17]/case report1 (f)/63 yFFA (yes)/4 m(i) Oral alitretinoin(i) 30 mg/D5 mImprovement of facial papulesImproved (n = 1)NA
(Facial papules had completely vanished)

Panchaprateep et al. [18]/retro-prospective cohort study46 (f)/61 yFFA (yes)/1–5 y(i) Monotherapy with topical treatments (topical steroids, topical tacrolimus, topical pimecrolimus, topical minoxidil, topical retinoids) (n = 9, 19.6%)As mentionedNAHair regrowth along the hairline(i) Improved (n = 3, 33.3%)/stabilized (n = 6, 66.7%)NA
(ii) Finasteride 5 mg/day (or dutasteride 0.5 mg/day) with topical treatment (n = 23, 50%)(ii) Improved (n = 6, 26.1%)/stabilized (n = 15, 65.2%)/worsened (n = 2, 8.7%)
(iii) HCQ (200–400 mg/day) with topical treatment (n = 10, 21.7%)(iii) Improved (n = 3.30%)/stabilized (n = 6.60%)/worsened (n = 1.10%)
(iv) Other systemic treatment (e.g. cyclosporin A,doxycycline) with topical treatment (n = 4, 8.7%)(iv) Improved (n = 1.25%)/stabilized (n = 2.50%)/worsened (n = 1.25%)

Suchonwanit et al. [19]/retrospective clinical study56 (f: 54, m: 2)/51.3 yFFA (yes)/6.5 (1–15) y(i) Topical steroids with HCQ (n = 29)NANAManagement of hairline recession and hair loss/decrease of the symptoms(i) Stabilized (n = 23, 79.3%)1–15 y
(ii) Topical steroids with finasteride (n = 15)(ii) Stabilized (n = 11, 73.3%)
(iii) Intralesional steroids with HCQ (n = 10)(iii)Stabilized (n = 5.50%)
(iv) High-potency topical corticosteroids(iv) Worsened
(v) HCQ (n = 4)(v) Worsened
(vi) Intralesional steroids (n = 4)(vi) Worsened
(vii) HCQ with doxycycline (n = 8)(vii) Worsened
(viii) Topical steroids with intralesional steroids (n = 7)(viii) Worsened
(ix) Topical tacrolimus with HCQ (n = 3)(ix) Worsened
(x) HCQ with pioglitazone (n = 2)(x) Worsened
(xi) Topical steroids with dutasteride (n = 1)(xi) Worsened
(xii) HCQ with methotrexate (n = 1)(xii) Worsened
(xiii) Topical steroids with acitretin (n = 1)(xiii) Worsened

Mahmoudi et al. [20]/randomized controlled trial38 (f: 36, m: 2)/46 ± 9.4 yFFA (yes)/NA(i) isotretinoin (20 mg/day) with topical treatments (consisted of: topical clobetasol 0.05% (for 5 days) followed by tacrolimus 0.1% (for 2 days), after two weeks, a weekly cycle of tacrolimus 0.1% (for 5 days) and clobetasol 0.05% (for 2 days)) (n = 19)As mentioned6 mHair regrowth along the hairline and vertex/improvement of facial papules(i) Improved6 m
(ii) Monotherapy with topical treatments (n = 19)(ii) Worsened

Pindado et al. [21]/retrospective observational study224 (f: 222, m: 2)/NAFFA (yes)/NA(i) Capsule dutasteride 0.5 mg (n = 148, 66.1%)(i) 1 to 7 caps pre week12 m≤Stabilization of the hairline recession(i) Stabilized24 (12–108) m
(ii) Finasteride (n = 9, 4%)(ii) 2.5–5 mg/day(ii) Stabilized
(iii) HCQ (n = 6, 2.7%)(iii) 200–400 mg/day(iii) Worsened
(iv) Doxycycline (n = 2, 1.3%)(iv) 100 mg/day(iv) Worsened
(v) Oral isotretinoin (n = 2, 0.9%)(v) 5–20 mg/day(v) Worsened
(vi) Topical minoxidil 5% (all patients)(vi) 5 nights a week(vi) Worsened
(vii) Clobetasol propionate 0.05% solution (all patients)(vii) Twice weekly(vii) Worsened

Pirmez and Spagnol Abraham [22]/case series7 (f)/35–65 yFFA (yes)/NA(i) Low dose oral minoxidil(i) Initial dose5 mEyebrow regrowth(i) Improved (complete (n = 2) and partial (n = 5) regrowth of eyebrow was seen)NA
0.5 mg (n = 2)
0.75 mg (n = 2)
1.25 mg (n = 3) daily/at month 3, the dose was increased to 2.5 mg/day in 5 patients

Pham et al. [23]/case series3 (f: 2, m: 1)/45 yFFA (yes)/3.66 y(i) Oral isotretinoin 30 mg/day + intralesional triamcinolone 5 mg/mL every 6 to 8 weeksAs mentioned6 m≤Improvement of facial papulesImproved (n = 3) (significant decrease in the number and size of facial papules, regrowth of eyebrows, hairline stability was seen)18–24 m
(ii) Oral isotretinoin 20 mg/day + intralesional triamcinolone 5 mg/mL every 6 to 8 weeks + topical clobetasol 0.05% solution daily
(iii) Oral isotretinoin 20 mg BD + topical minoxidil 5% BD + ketoconazole shampoo 2% topically 3 times per week + fluocinonide 0.05% solution topically BD + intralesional triamcinolone 5 mg/mL every 6 to 8 weeks

Stumpf et al. [24]/case report1 (f)/53 yFFA (no)/3 y(i) Methotrexate(i) 20 mg once a week7 mImprovement of fronto-temporal hairline recession(i) StabilizedNA

Cid et al. [25]/observational retrospective cross-sectional study75 (f: 73, m: 2)/61 yFFA (yes)/4 y(i) ITAIs (n = 6)(i) 8 mg/mL10 mStabilization of hairline recession(i) Stabilized (n = 2, 33%)11.5 m
(ii) HCQ (n = 5)(ii) 200–400 mg/d(ii) Stabilized (n = 5, 100%)
(iii) Finasteride (n = 2)(iii) 2.5 mg/d(iii) Stabilized (n = 1, 50%)
(iv) Oral corticosteroids (prednisone) (n = 1)(iv) 50 mg(iv) Worsened
(v) Oral isotretinoin (n = 1)(v) 20 mg/d(v) Worsened
(vi) Dutasteride (n = 14)(vi) 0.5 mg/d (1–3 times per week)(vi) Stabilized (n = 9, 64.2%)

Cardona et al. [26]/case series5 (f)/41.4 yFFA (yes)/4 y(i) Oral isotretinoin(i) 10 mg/d3–24 mImprovement of facial papules(i) Improved (n = 5)NA
(Rapid improvement of the papules, with persistence of the other skin findings)

Murad and Bergfeld [27]/case series3 (f)/53.3 yFFA (yes)/6 m–15 y(i) HCQ (n = 3)(i) 200 mg BD(i) 6 m<Regrowth of eyebrows(i) Worsened (n = 3)NA
(ii) Topical minoxidil 5% (n = 3)(ii) Daily(ii) 6 m<(ii) Worsened (n = 3)
(iii) Clobetasol propionate (0.05%) lotion (n = 3)(iii) Daily(iii) 6 m<(iii) Worsened (n = 3)
(iv) Topical bimatoprost ophthalmic solution 0.03% (n = 3)(iv) BD(iv) 9 m<(iv) Improved (n = 2)

Özcan et al. [28]/case report1 (f)/44 yFFA (yes)/NA(i) Clobetasol propionate lotion 0.05% (on the scalp)(i) BD9 mImprovement of frontotemporal hairline recession(i) WorsenedNA
(ii) Prednisolone cream 0.125% (on the eyebrows)(ii) BD(ii) Worsened
(iii) HCQ(iii) 400 mg/d(iii) Worsened
(iv) Topical minoxidil 5% lotion (on the scalp)(iv) BD(iv) Worsened
(v) ITAIs(v) (Into the eyebrows: 2.5 mg/ml, and fronto-temporal hairline: 5 mg/ml) (6 treatments with 1-month interval)(v) Worsened
(vi) PRP (platelet rich plasma) injection(vi) (0.1 ml/cm2, 5 treatments with 1-month interval)(vi) Improved (improvement of disease symptoms with no more hair loss)

Peterson et al. [29]/retrospective review7 (m)/54 yFFA (yes)/NA(i) Doxycycline(i) 100 mg daily14 m (1–51)Stabilization of hair loss/trichoscopy/resolution of symptomsImproved (n = 7) (improvement of disease symptoms with no more hair loss, one patient experienced minor regrowth of eyebrows)NA
(ii) HCQ(ii) 200 mg daily
(iii) Naltrexone(iii) 4.5 mg daily
(iv) Pioglitazone(iv) 15 mg daily
(v) Finasteride(v) 1 mg daily
(vi) Topical minoxidil 5%(vi) BD
(vii) Topical tacrolimus 0.3%(vii) Daily
(viii) Clobetasol solution 0.05%(viii) Daily
(ix) Clobetasol 0.05% shampoo(ix) Three times weekly
(x) ITAIs(x) NA
(xi) PRP injection(xi) NA

Campbell and McKenna [30]/case report1 (f)/48 yFFA (yes)/7 y(i) Oral isotretinoin(i) 20 mg/day6 mImprovement of facial papules(i) Improved (overall reduction and flattening of the papules)2 y

Trindade de Carvalho [31]/case report1 (f)/73 yFFA (yes)/several years(i) ITAIs(i) Triamcinolone acetonide 5 mg/mL(i) 58 mImprovement of hairline recession(i) Worsened13 m
(ii) Oral corticosteroids (prednisone)(ii) 15 mg daily(ii) 3 m(ii) Worsened
(iii) Infrared light(iii) (15 sessions)(iii) 42 m(iii) Worsened
(iv) HCQ(iv) 400 mg daily(iv) 18 m(iv) Worsened
(v) Ciclosporin(v) 50 mg daily(v) 6 m(v) Worsened
(vi) Minocycline(vi) 100 mg daily(vi) 6 m(vi) Worsened
(vii) Doxycycline(vii) 5 mg daily(vii) 6 m(vii) Worsened
(viii) Tofacitinib(viii) 50 mg daily(viii) 3 m(viii) Worsened
(ix) Flutamide(ix) 1–2 mg/day(ix) 65 m(ix) Worsened
(x) Topical minoxidil(x) 0.5 mg daily(x) 14 m(x) Improved
(xi) Dutasteride(xi) 100 mg at week 0, 4 and 12 (weekly)(xi) NA(xi) Improved
(xii) Tildrakizumab (interleukin-23 monoclonal antibody)(xii) Improved

Starace et al. [32]/case series65 (f)/62.5 yFFA (yes)/4.3 y(i) Intramuscular triamcinolone acetonide (n = 15, 23.1%)(i) 0.5 mg/kg/month6 m≤Improvement of hairline recessionImproved (systemic agents in regards to hair loss improvement: 75%, topical agents in regards to symptoms improvement: 91%)6 m≤
(ii) ITAIs (n = 3, 4.5%)(ii) 3 ml every 6 weeks)
(iii) HCQ (n = 10, 15.4%)(iii) 400 mg/da
(iv) Oral finasteride (2.5 mg/day) or dutasteride (0.5 mg/day) (n = 45 patients, 69.3%)(iv) As mentioned
(v) Topical clobetasone propionate 0.05 (n = 15, 23.1%)(v) Daily
(vi) Topical tacrolimus 0.1% (n = 40, 61%)(vi) Daily
(vii) Topical pimecrolimus cream (n = 20, 13%)(vii) Daily

Letulé et al. [33]/retrospective study72 (f: 70, m: 2)/62 yFFA (yes)/NA(i) HCQ(i) 200 to 400 mg/dayNAImprovement of hairline recession(i) Worsened20 m
(ii) Systemic retinoids (n = 4, 5.6%)(ii) Daily(ii) NA
(iii) Tacrolimus (n = 13, 18.1%)(iii) Daily(iii) NA
(iv) Topical pimecrolimus 1% (n = 53, 73.6%)(iv) Daily(iv) Improved (64.6%) (in combination with high-potency steroids)
(v) Topical high-potency steroids (all patients) (clobetasol propionate (81.9%, n = 59) and betamethasone valerate (27.8%, n = 20))(v) Daily

Flores Terry et al. [34]/case report2 (f)/43.5 yFFA (yes)/4 y(i) Oral isotretinoin(i) 10 mg/day6 mImprovement of facial papules(i) Improved (n = 2)NA

Murad and Bergfeld [35]/case report1 (f)/48 yFFA (yes)/6 m(i) HCQ(i) 200 mg BD(i) 14 mImprovement of scalp alopecia/regrowth of eyebrows(i) StabilizedNA
(ii) Clobetasol propionate (0.05%) lotion(ii) Daily(ii) 14 m(ii) Stabilized
(iii) Tacrolimus ointment (0.1%)(iii) Daily(iii) 14 m(iii) Stabilized
(iv) Topical bimatoprost ophthalmic solution 0.03%(iv) BD(iv) 6 m(iv) Improved (eyebrows regrowth)

Strazzulla et al. [36]/retrospective review92 (f: 90, m: 2)/55 yFFA (yes)/NA(i) ITAIsNA10.4 mNo further hairline recession, eyebrow loss, or evidence of active inflammation(i) Stabilized (71.7%, n = 66)21.4 m
(ii) HCQ(ii) Stabilized (34.8%, n = 32)
(iii) Antibiotics (doxycycline, tetracycline, or minocycline)(iii) Stabilized (70.7%, n = 65)
(iv) Methotrexate(iv) Worsened
(v) Spironolactone(v) Worsened
(vi) Finasteride/dutasteride(vi) Stabilized (26.1%, n = 24)
(vii) Tacrolimus, 0.3% (in cetaphil cleanser)(vii) Stabilized (41.3%, n = 38)
(viii) Hydrocortisone butyrate, 0.1% solution(viii) Stabilized (54.3%, n = 50)
(ix) Topical minoxidil 5%(ix) Stabilized (67.4%, n = 62)
(x) Clobetasol propionate, 0.05% lotion or betamethasone dipropionate 0.05% lotion(x) Stabilized (23.9%, n = 22)

Zhang et al. [37]/retrospective review29 (f: 28, m: 1)/55.4 yFFA (yes)/NA(i) Topical steroids (n = 21,.72%)NANAHair regrowth or hair loss stabilization(i) Stabilized (n = 11)NA
(ii) HCQ (n = 16.55%)(ii) Stabilized (n = 10)
(iii) Intralesional steroids (n = 11.38%)(iii) Worsened
(iv) Topical pimecrolimus (or tacrolimus) (n = 6.21%)(iv) Stabilized (n = 5)
(v) Topical minoxidil (n = 3.10%)(v) Worsened
(vi) Antibiotics (doxycycline, tetracycline, or minocycline) (n = 10.30%)(vi) Worsened
(vii) Bimatoprost (n = 1.3%)(vii) NA
(viii) Methotrexate (n = 1.3%)(viii) NA
(ix) Oral isotretinoin (n = 1.3%)(ix) NA
(x) Finasteride (or dutasteride) (n = 2.6%)(x) NA

Georgala et al. [38]/prospective uncontrolled study13 (f)/61 yFFA (yes)/2–9 y(i) Oral dutasteride(i) 0.5 mg/day12 mStabilization or reduction of the hairline recessionStabilized (complete arrest of the FFA progression in 6 pts (46.1%), partial hair regrowth in 2 pts (15.3%), decreasing hair loss in 5 others) (significant eyebrow regrowth in 5 pts (71.4%), others remained stable)18 m

Moreno et al. [39]/retrospective analysis106 (f)/61.4 yFFA (yes)/18 m(i) Oral dutasteride (n = 106)(i) 0.5 mg 3 times a week12 mImprovement of hairline recession(i) Worsened (stabilization was reported in 37.3% of the patients)12 m
(ii) Topical clobetasol 17-propionate foam (n = 106)(ii) 0.05% twice weekly

Galván et al. [1]/retrospective analysis335 (f: 343, m: 12)/61 yFFA (yes)/5.3 y(i) Dutasteride (n = 18)(i) 0.5 mg weeklyNAImprovement of hairline recession(i) Improved (n = 8.44%)/Stabilized (n = 10.56%)2.1 y
(ii) Finasteride (n = 98)(ii) 2.5–5 mg daily(ii) Improved (n = 48.47%)/Stabilized (n = 50.53%)
(iii) HCQ (n = 52)(iii) 200–400 mg daily(iii) Improved (n = 8.15%)/stabilized (n = 32.59%)/worsened (n = 12.22%)
(iv) Intralesional corticosteroids (n = 114)(iv) Every 3–6 months(iv) Improved (n = 44.34%)/stabilized (n = 64.49%)/worsened (n = 6.5%)
(v) Topical corticosteroids and topical minoxidil(v) NA

Ladizinski et al. [40]/retrospective analysis19 (f)/NAFFA (yes)/NA(i) Dutasteride (n = 10)(i) 0.5 mg daily for 2 weeks then 0.5 mg weekly23 mStabilization of hair loss(i) Stabilized (n = 7.70%)2 y
(ii) Finasteride (n = 3)(ii) 1–2.5 mg daily(ii) Stabilized (n = 1.33%)
(iii) Methotrexate (n = 3)(iii) 15–25 mg weekly(iii) Stabilized (n = 1.50%)
(iv) HCQ 400 mg daily ± topical tacrolimus or class I corticosteroids (n = 2)(iv) As mentioned(iv) Stabilized (n = 1.33%)
(v) Minocycline + topical tacrolimus (n = 2)(v) NA(v) Stabilized (n = 1.50%)
(vi) Imiquimod + topical corticosteroid class I (n = 2)(vi) NA(vi) Stabilized (n = 1.50%)

Donovan et al. [41]/retrospective review11 (f)/50.63 yFFA (yes)/3 y(i) ITAIs (n = 11)(i) Triamcinolone acetonide 10 mg/ml (0.125 mL per eyebrow)3–72 mRegrowth of eyebrowsImproved (n = 10, 90.9%)1–5 y
(ii) HCQ (n = 11)(ii) 200 mg BD(Significant eyebrow regrowth was seen)

Samrao et al. [42]/retrospective review36 (f: 35, m: 1)/60 yFFA (yes)/1 y(i) HCQ (n = 15)NA(i) 12 mDecreasing the LPPAI (lichen planopilaris activity index) score(i) Improved (n = 11, 68.8%)12 m
(ii) Doxycycline (n = 4)(ii) 18 m(ii) Improved (n = 2.50%)
(iii) Mycophenolate mofetil (n = 5)(iii) 6 m(iii) Improved (n = 3.60%)

Chiang et al. [43]/retrospective review7 (NA)/62 yFFA (yes)/NA(i) HCQ(i) 200 mg BD12 mDecreasing the LPPAI score(i) Improved (n = 6, 88%)1 y<

Tosti et al. [44]/retrospective review11 (f)/62 yFFA (yes)/5 y(i) Finasteride 2.5 mg daily + topical minoxidil 2% BD (n = 8)As mentioned18 mDisease stabilization(i) Stabilized (n = 4)12–30 m
(ii) Intramuscular triamcinolone acetonide 40 mg every 3 weeks + topical minoxidil 2% BD (n = 3)(ii) Worsened

Moreno and Camacho Martinez [45]/retrospective review15 (f)/45–79 yFFA (yes)/2.5 y(i) Finasteride (n = 7)(i) 2.5 mg dailyNAStabilizatig the disease progression and increasing hair densityImproved (antiandrogenic drugs were more likely associated with increasing the hair density)1–3.5 y
(ii) Topical minoxidil 5% (n = 7)(ii) BD
(iii) ITAIs (n = 15)(iii) Triamcinolone acetonide 20 mg/mL (1 mg/2 cm2 with 1/10 dilution) every 3 months

Kossard et al. [3]/retrospective review16 (f)/66.8 yFFA (yes)/1–10 y(i) Oral corticosteroids (prednisone) (n = 4)(i) 50 mg/day(i) 1 mSlowing down the hair lossWorsened (medications had no effect on hair loss of progressive FFA patients)2–5 y
(ii) Chloroquine phosphate (n = 3)(ii) 150 mg/day(ii) 3–9 m
(iii) Oral isotretinoin (n = 1)(iii) 50 mg/day(iii) 2 m
(iv) Ultramicronized griseofulvin (n = 1)(iv) 330 mg/day(iv) 1 m
(v) Topical moderately potent corticosteroids (n = 9)(v) NA(v) NA
(vi) Topical retinoic acid (n = 2)(vi) NA(vi) NA
(vii) Topical minoxidil 2% (n = 2)(vii) NA(vii) NA
(viii) Intralesional corticosteroids (n = 1)(viii) NA(viii) NA
(ix) Hormone replacement therapy (n = 8)(ix) NA(ix) NA

Tan and Messenger [46]/retrospective review18 (f)/55.5 yFFA (yes)/NA(i) ITAIs (n = 12)(i) Triamcinolone acetonide 10 mg/mLNAProgression of frontotemporal hairline recession(i) Improved (n = 8)3 m–15 y
(ii) Topical tacrolimus 0.1% (n = 5)(ii) NA(ii) NA
(iii) HCQ (n = 3)(iii) NA(iii) Improved (n = 1)
(iv) Clobetasol(iv) NA(iv) Improved
(v) Topical minoxidil(v) NA(v) Improved

Katoulis et al. [47]/case report1 (f)/55 yFFA (yes)/1 y(i) Oral dutasteride(i) 0.5 mg daily6 mEyebrows and frontoparietal hair regrowthImproved (significant hair regrowth was seen)6 m
(ii) Pimecrolimus 1% cream(ii) BD

Donovan [48]/case report1 (f)/51 yFFA (yes)/9 y(i) Oral finasteride(i) 2.5 mg daily1 yFrontotemporal hair regrowth and decreasing erythema and skin atrophyImproved1 y

Faulkner et al. [4]/case report1 (f)/45 yFFA (yes)/18 m(i) Topical fluocinolone acetonide 0.025%(i) BD12 mImprovement of skin lesions and hair lossImproved1 y
(ii) Topical clobetasol proprionate 0.05% cream(ii) BD (on the face)

Pérez-Rodríguez et al. [49]/case report1 (f)/57 yFFA (yes)/3 y(i) Oral dutasteride(i) 0.5 mg daily(i) 8 mImprovement of erythema and hair regrowthImproved13 m
(ii) Topical pimecrolimus 1%(ii) BD(ii) 3 m

Contin et al. [50]/case series4 (f)/60.5 yFFA (yes)/NA(i) HCQ(i) NA4.5 yDisease activity level(i) Worsened (n = 4)NA

Dlova et al. [51]/retrospective review20 (f: 19, m: 1)/42 yFFA (yes)/NA(i) HCQ(i) 200 mg BD6–12 mFrontotemporal hair regrowthWorsened (disease stabilization was achieved in only 5 pts)2 y
(ii) Topical medications (clobetasol diproprionate, tacrolimus 0.1%, minoxidil 2%)(ii) NA

Cranwell and Sinclair [52]/case report1 (f)/46 yFFA (yes)/10 m(i) HCQ(i) 400 mg daily(i) 15 yHair loss stabilization(i) Worsened3 y
(ii) Methotrexate(ii) 20 mg(ii) 5 y(ii) Worsened
(iii) ITAIs(iii) Triamcinolone 5 mg/mL (mixed with lignocaine 1%), (repeated every 6 weeks)(iii) 4 sessions(iii) Worsened
(iv) Dutasteride(iv) 0.1 mg daily(iv) NA(iv) Improved
(v) Oral minoxidil(v) 1 mg daily(v) NA(v) Improved

Gerkowicz et al. [53]/clinical trial16 (f)/65 yFFA (yes)/6 y(i) LEDs (light-emitting diodes) (for eyebrow area)(i) Once a week (for 10 sessions) (dose per session: 37 J/cm2, light power density: 68 mW/cm2. The distance from the eyebrow was 15 cm. Each session lasted 9 min and 4 s)Regrowth of eyebrow hairImproved (significant increase of total eyebrow hair count)6 m

Subash et al. [54]/clinical trial5 (f)/54 yFFA (yes)/6 m<(i) 1064 nm wavelength Nd:YAG (neodymium-doped yttrium aluminum garnet) nonablative laser(i) 3 laser treatments (once monthly) at 14 J/cm2, spot size 5 mm, pulse duration 3 ms at 7 Hz for 7000 to 8000 pulses (30 minutes each), 2 cm distanceImprovement of disease symptomsImprovedNA
Using a nonablative, noncontact 1064 nm laser

Liu et al. [55]/case report1 (f)/44 yFFA (yes)/3 y(i) HCQ(i) 400 mg/day1.5 mImprovement of disease symptoms and growth and survival of transplanted hair folliclesImproved (significant hair growth during 4 years of f/u)4 y
(ii) Topical fluocinonide 0.05% cream(ii) NA
(iii) Tacrolimus 0.1% ointment(iii) NA
(iv) Hair transplantation (follicular unit extraction method) at the fronto-temporal hairline(iv) 360 follicular units (FU; 630 hairs) (after 2 years of disease stabilization)

Trüeb et al. [56]/case report1 (f)/57 yFFA (yes)/9 y(i) Topical pimecrolimus 1% b.i.dNAImprovement of disease symptoms and growth and survival of transplanted hair folliclesImproved (significant hair growth at 2nd year of f/u)2 y
(ii) Intralesional triamcinolone acetonide
(iii) Autologous hair transplantation (follicular unit extraction method) at the frontal hairline

Audickaite et al. [57]/case series10 (f: 9, m: 1)/28–58 yFFA (yes)/2–10 y(i) Hair transplantation (follicular unit extraction method or strip technique) at the eyebrow area(i) 120 to 270 single hair follicles per eyebrowGrowth and survival of transplanted hair folliclesWorsened (8 pts achieved significant hair growth at year 1&2 of f/u; however, 3 of 4 pts with 4 years of f/u began to lose the transplanted hair follicles)4 y

Vañó-Galván et al. [58]/retrospective review51 (f: 48, m: 3)/54 yFFA (yes)/NA(i) Hair transplantation (follicular unit extraction method: n = 7, strip technique: n = 44) at the frontal hairline (n = 22), temporal hairline (n = 30) and eyebrow area (n = 15)(i) 1345 single hair follicles per surgical procedure (after 15 months of disease stabilization)Growth and survival of transplanted hair folliclesWorsened (mean rate of survived transplanted follicles at 1, 2, 3, and 5 years of f/u was 87%, 71%, 60%, and 41%, respectively)3.2 y

Jiménez and Poblet [59]/case series3 (f)/70 yFFA (yes)/10.6 y(i) Hair transplantation(i) 20 to 80 single hair follicles per surgical procedure (after disease stabilization)Growth and survival of transplanted hair folliclesWorsened (1 year after transplantation, significant hair growth was seen (90%<), but in the 4th year of f/u, less than 30% of transplanted hair follicles survived)4.7 y