Table 2.

Treatment effectiveness for enthesitis outcomes in randomized controlled trials in psoriatic arthritis.

StudyAgentNo.Enthesitis MeasureResults (p value vs placebo, at followup)Effect Size [95%CI]
Clegg 199615Sulfasalazine, 2 g qd221Modified Mander
Enthesitis Index
Mean at baseline (± SD)/ mean change (± SD) 36 wks. S: 4.3 ± 5.9/–1.5 ± 4.5; P: 4.4 ± 5.6/–0.9 ± 4.1; NS–0.1 [–0.4, 0.1]
Antoni 20058Infliximab, 5 mg/kg q8w104IMPACT Index% at baseline/16 wks. I: 25/14. P: 25/31 (p = 0.021)NA
Antoni 20059Infliximab, 5 mg/kg q8w200IMPACT Index% at baseline/14 wks/24 wks. I: 42/22/20; P: 35/34/37; (p = 0.016/p = 0.002)NA
Mease 200510Adalimumab, 40 mg q2w313IMPACT IndexNR/NSNA
Genovese 200711Adalimumab, 40 mg q2w100IMPACT IndexMean (± SD) at baseline/mean change 16 wks. Ad: 0.9 ± 1.2/–0.5; P: 1.0 ± 1.3/–0.2; NS–0.24 [–0.6, 0.2]
Kavanaugh 20097,12Golimumab, 50 mg q4w; 100 mg q4w406PsA modified MASES% at baseline/14 wks/24 wks. G100: 79/61/50 (NS/p = 0.003); G50: 75/55/49 (p = 0.008/p = 0.002); P:78/71/69
Mean (± SD) at baseline/mean % change 24 wks. G100: 6.1 ± 4.1/–52.4 (p < 0.001)–0.62 [–0.9, −0.4]
G50: 5.7 ± 4.0 /–46.1 (p < 0.001)–0.49 [–0.7, −0.2]
Gtot: 5.9 ± 4.1/–49.4 (p < 0.001); P: 5.0 ± 4.1/–12.9–0.55 [–0.8, −0.3]
Gottlieb 200913Ustekinumab, 90 mg or 63 mg qw for 4 wks146IMPACT Index% at baseline/12 wks. U: 45/23; P: 46/42; p = 0.0163NA
Sterry* 201014Etanercept, 50 mg biw/qw; 50 mg qw/qw752IMPACT Index% at baseline/improved** 12 wk/24 wk. E (biw/qw): 40.4/73.7/80.9; E (qw/qw): 35.9/70.0 /81.3; (NR)NA
McInnes 201316Ustekinumab, 45 mg q12w; 90 mg q12w615PsA modified MASES% at baseline/24 wks. U90: 75.5/60.8 (p = 0.0002); U45: 69.3/68.6 (p = 0.0179); P: 70.4/81.0
Mean (± SD) at baseline/mean change 24 wks
U90: 5.7 ± 3.8/–2.5 (p = 0.002)^–0.31 [–0.5, −0.1]
U45: 5.0 ± 3.6/–2.0 (p = 0.057)^–0.19 [–0.4, 0.0]
Utot: 5.4 ± 3.7/–2.2 (p = 0.003)^; P: 5.4 ± 3.9/–1.3–0.25 [–0.4, −0.1]
Ritchlin 201419Ustekinumab, 45 mg q12w; 90 mg q12w312PsA modified MASES% at baseline/24 wks U90: 72.4/70.0 (p = 0.01) U45: 69.9/75.7 (p < 0.05); P: 70.2/88.2
Mean (± SD) at baseline/mean change 24 wks. U90: 5.7 ± 3.9/–2.1 (p = 0.08)^–0.24 [–0.5, 0.3]
U45: 6.5 ± 3.9/–1.9 (p = 0.16) ^–0.19 [–0.5, 0.1]
Utotal: 6.1 ± 3.9/–2.0 (p = 0.07); P: 5.5 ± 4.3/–1.1–0.22 [–0.5, 0.1]
Mease 201417Certolizumab, 400 mg q4wk; 200 mg q2wk409LEIMean(± SD) at baseline/change (± SD) 24 wks. C400: 2.9 ± 1.6/−1.8 ± 1.9 (p = 0.003)–0.44 [–0.7, −0.2]
C200: 3.1 ± 1.7/–2.0 ± 1.8 (p < 0.001); P: 2.9 ± 1.6/–1.1 ± 1.8–0.55 [–0.8, −0.3]
Kavanaugh 201418Apremilast, 20 mg bid, 30 mg bid504MASESMean(± SD)at baseline/change (± SE) 24 wks
Ap30: 4.4 ± 3.1/–1.7 ± 0.3 (p = 0.03)–0.27 [–0.5, −0.1]
Ap20: 5.0 ± 3.3/–1.6 ± 0.3 (NS); P: 5.4 ± 3.5/–0.8 ± 0.3–0.24 [–0.5, −0.2]
  • * All studies are double-blind randomized controlled trials (DBRCT) except for Sterry 2010 (2 active arms).

  • ** % with improvement in ≥ 1 site.

  • ^ p values for comparison of means calculated using the t test. NA: not applicable; NR: not reported; NS: not significant; Ad: adalimumab; Ap: apremilast; C: certolizumab; E: etanercept; G: golimumab; I: infliximab; P: placebo; S: sulfasalazine; U: ustekinumab; bid: twice daily; biw: twice weekly; qd: daily; qw: weekly. Values in bold face are statistically significant.