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. 2020 Jun 11;7(3):581–599. doi: 10.1007/s40744-020-00214-7

Table 2.

Efficacy outcomes following 48 weeks’ of open-label CZP 200 mg Q2W

Imputation All axSpA (N = 736) r-axSpA (n = 407) nr-axSpA (n = 329)
BL Week 48 BL Week 48 BL Week 48
ASDAS disease states, n (%)
 ASDAS-ID LOCF 0/736 (0.0) 385/734 (52.5) 0/407 (0.0) 213/407 (52.3) 0/329 (0.0) 172/327 (52.6)
 ASDAS-LD LOCF 11/736 (1.5) 167/734 (22.8) 6/407 (1.5) 89/407 (21.9) 5/329 (1.5) 78/327 (23.9)
 ASDAS-HD LOCF 293/736 (39.8) 139/734 (18.9) 136/407 (33.4) 79/407 (19.4) 157/329 (47.7) 60/327 (18.3)
 ASDAS-vHD LOCF 432/736 (58.7) 43/734 (5.9) 265/407 (65.1) 26/407 (6.4) 167/329 (50.8) 17/327 (5.2)
ASDAS clinical improvement, n (%)
 ASDAS-CII NRI 564 (76.6) 321 (78.9) 243 (73.9)
 ASDAS-MI NRI 413 (56.1) 238 (58.5) 175 (53.2)
ASAS responder rates, n (%)
 ASAS20 NRI 586 (79.6) 325 (79.9) 261 (79.3)
 ASAS40 NRI 530 (72.0) 290 (71.3) 240 (72.9)
 ASAS5/6 NRI 461 (62.6) 281 (69.0) 180 (54.7)
 ASAS PR NRI 422 (57.3) 227 (55.8) 195 (59.3)
BASDAI50 response, n (%) NRI 528 (71.7) 290 (71.3) 238 (72.3)
ASDAS, mean (SD) LOCF 3.7 (0.8) 1.6 (1.0) 3.9 (0.8) 1.6 (1.0) 3.6 (0.8) 1.5 (1.0)
BASDAI, mean (SD) LOCF 6.7 (1.4) 2.1 (2.4) 6.7 (1.4) 2.1 (2.3) 6.7 (1.4) 2.2 (2.4)
BASFI, mean (SD) LOCF 5.3 (2.1) 1.7 (2.1) 5.4 (2.0) 1.7 (2.1) 5.2 (2.1) 1.6 (2.1)
BASMI, mean (SD) LOCF 3.1 (1.5) 2.3 (1.3) 3.5 (1.6) 2.6 (1.4) 2.6 (1.3) 1.9 (1.1)
ASQoL, mean (SD; n) OC 11.1 (4.4; 735) 2.7 (4.3; 667) 11.1 (4.4; 407) 2.7 (4.2; 365) 11.2 (4.5; 328) 2.8 (4.5; 302)
SF-36 PCS, mean (SD; n) OC 34.5 (7.6; 734) 50.4 (8.0; 667) 34.8 (7.4; 406) 50.5 (7.7; 365) 34.2 (7.7; 328) 50.3 (8.3; 302)
SF-36 MCS, mean (SD; n) OC 43.4 (10.7; 734) 52.6 (9.6; 667) 43.3 (10.7; 406) 52.6 (9.4; 365) 43.6 (10.8; 328) 52.6 (9.8; 302)
MRI outcomes
 SIJ SPARCC, mean (SD; n) OC 8.0 (11.4; 657) 1.4 (4.5; 620) 8.2 (11.8; 358) 1.4 (4.2; 341) 7.9 (10.9; 299) 1.5 (4.8; 279)
 ASspiMRI-a, mean (SD; n) OC 3.1 (5.2; 655) 0.9 (2.1; 620) 4.6 (6.1; 357) 1.2 (2.5; 341) 1.4 (2.9; 298) 0.5 (1.3; 279)
MASES, mean (SD; n) OC 2.5 (3.0; 736) 0.6 (1.6; 668) 2.3 (2.8; 407) 0.5 (1.5; 366) 2.7 (3.1; 329) 0.6 (1.7; 302)
Tender joint count, mean (SD; n) OC 2.6 (5.0; 736) 0.5 (2.3; 669) 1.9 (3.8; 407) 0.3 (1.3; 367) 3.4 (6.0; 329) 0.7 (3.0; 302)
Swollen joint count, mean (SD; n) OC 0.7 (2.1; 736) 0.1 (0.7; 669) 0.5 (1.4; 407) 0.1 (0.4; 367) 1.1 (2.7; 329) 0.1 (0.9; 302)

ASAS Assessment of Spondyloarthritis international Society, ASDAS Ankylosing Spondylitis Disease Activity Score, ASspiMRI-a Ankylosing Spondylitis spine MRI score for activity, BASDAI50 Bath Ankylosing Spondylitis Disease Activity Index 50% improvement, BASFI Bath Ankylosing Spondylitis Functional Index, BASMI Bath Ankylosing Spondylitis Metrology Index, CII clinically important improvement, CZP certolizumab pegol, LS least squares, MASES Maastricht Ankylosing Spondylitis Enthesitis Score, MI major improvement; MMRM mixed effect model for repeated measures, MRI magnetic resonance imaging, NRI non-responder imputation, OC observed case, Q2W every 2 weeks, Q4W every 4 weeks, SD standard deviation, SE standard error, SIJ SPARCC sacroiliac joint Spondyloarthritis Research Consortium of Canada