Table 1

Mean (SD) baseline values, LS mean (SD) changes from baseline adjusted for baseline value (analysis of covariance), treatment effect, SRM and relative efficiency compared to AUSCAN pain in the per-protocol population (score range is shown in parentheses)

Baseline, mean (SD)Changes, LS mean (SD)
OutcomeCRx-102 (n=26)Placebo (n=33)CRx-102 (n=26)Placebo (n=33)Treatment effect (95% CI)p ValueSRMRelative efficiency
AUSCAN (0–100)
 Pain61.9 (16.6)63.8 (17.2)−20.5 (21.1)−6.2 (21.1)14.3 (3.2 to 25.4)0.0120.681.00
 Physical64.9 (18.9)70.9 (15.5)−12.9 (18.6)−5.9 (18.6)7.0 (−2.9 to 16.8)0.1610.370.30
 Stiffness62.9 (17.4)67.8 (19.8)−20.3 (22.5)−8.3 (22.5)12.0 (0.2 to 23.9)0.0470.530.61
VAS (0–100)
 Pain59.8 (19.5)62.9 (16.7)−23.5 (22.3)−6.3 (22.3)17.2 (5.5 to 28.9)0.0050.771.28
 Global61.5 (17.5)62.5 (17.6)−23.4 (20.4)−4.6 (20.4)18.8 (8.1 to 29.5)0.0010.921.83
 CRP2.0 (1.8)2.3 (2.2)−0.2 (2.3)0.4 (2.3)0.6 (−0.7 to 1.8)0.3640.240.12
 18-TJC (0–18)9.8 (4.4)10.1 (4.5)−4.8 (5.0)−2.5 (5.0)2.3 (−0.3 to 4.9)0.0840.460.46
 18-SJC (0–18)5.6 (4.1)4.9 (4.1)−3.1 (2.9)−1.7 (2.8)1.4 (−0.1 to 2.9)0.0590.510.56
 18-LMJC (0–18)5.9 (5.3)7.6 (4.7)−1.9 (3.6)−1.1 (3.6)0.8 (−1.1 to 2.7)0.4010.220.10
 18-BEJC (0–18)12.8 (3.6)12.4 (3.9)0.4 (1.6)0.1 (1.6)−0.4 (−1.2 to 0.5)0.396−0.23NA
 HOA–PAS (0–10)6.2 (1.8)6.5 (1.5)−2.0 (2.0)−0.6 (2.0)1.4 (0.41 to 2.48)0.0070.731.15
 HOA–CDAI-1 (0–66)34.4 (9.2)35.2 (8.8)−13.4 (10.0)−6.2 (10.0)7.2 (2.0 to 12.5)0.0080.721.12
 HOA–CDAI-2 (0–56)27.5 (8.8)27.5 (7.7)−12.7 (9.0)−5.3 (9.0)7.4 (2.7 to 12.1)0.0030.821.45
  • AUSCAN, Australian/Canadian osteoarthritis hand index; BEJC, bony enlargement joint count; CRP, C-reactive protein; HOA–CDAI, hand osteoarthritis clinical disease activity index; HOA–PAS, hand osteoarthritis patient activity score; LMJC, limited motion joint count; LS, least square; NA, not analysed (invalid when negative standardised response mean (SRM) value); SJC, soft tissue swelling joint count; TJC, tender joint count; VAS, visual analogue scale.

  • HOA–PAS: VAS pain + VAS global + AUSCAN physical.

  • HOA–CDAI-1: 18-TJC + 18-SJC + AUSCAN pain + AUSCAN stiffness + AUSCAN physical.

  • HOA–CDAI-2: 18-TJC + 18-SJC + VAS pain + VAS global.