Skip to main content

Table 3 Response to TNF-α treatment. Percent changes of biomarkers from baseline to weeks 22 and 46 in patients with and without a BASDAI response, respectively

From: Levels of extracellular matrix metabolites are associated with changes in Ankylosing Spondylitis Disease Activity Score and MRI inflammation scores in patients with axial spondyloarthritis during TNF inhibitor therapy

Biomarker

Week 22 response

Week 46 response

Non-responders

n=19

Responders

n=36

p-value

Non-responders

n=12

Responders

n=37

p-value

PRO-C1

Median (IQR)

− 3.1

(− 33.2, 13.9)

14.2

(5.1, 36.1)

0.020

6.2

(− 15.4, 24.1)

12.8

(1.5, 36.1)

0.432

PRO-C3

Median (IQR)

− 6.0

(− 27.6, 8.4)

4.0

(− 11.0, 28.6)

0.186

− 1.4

(− 17.0, 25.5)

6.5

(− 11.0, 28.6)

0.552

PRO-C4

Median (IQR)

− 12.7

(− 28.1, 28.9)

− 8.1

(− 25.3, 17.8)

0.832

− 11.9

(− 29.2, 10.1)

− 8.4

(− 25.7, 22.4)

0.710

PRO-C6

Median (IQR)

− 2.5

(− 13.8, 8.7)

− 0.4

(− 12.1, 19.1)

0.349

− 0.4

(− 16.0, 19.9)

0.2

(− 12.4, 14.2)

0.868

C3M

Median (IQR)

15.3

(− 7.1, 21.9)

4.5

(− 9.2, 15.0)

0.331

5.7

(− 8.9, 20.4)

6.0

(− 9.5, 16.4)

0.739

C4M

Median (IQR)

2.7

(− 14.2, 15.1)

− 6.8

(− 13.7, 5.5)

0.517

− 11.3

(− 14.8, 2.4)

− 6.4

(− 12.2, 6.7)

0.421

C6M

Median (IQR)

− 3.7

(− 39.0, 32.1)

− 32.0

(− 63.7, 4.5)

0.049

− 9.9

(− 56.3, 48.2)

− 30.6

(− 53.9, 17.1)

0.485

C7M

Median (IQR)

− 29.1

(− 42.5, 34.8)

− 28.9

(− 54.5, 8.4)

0.737

− 22.2

(− 56.1, 39.6)

− 30.0

(− 51.5, 0.0)

0.642

C10C

Median (IQR)

9.2

(− 9.2, 21.0)

2.4

(− 5.5, 15.0)

0.873

13.4

(− 4.3, 22.4)

2.1

(− 8.7, 14.5)

0.403

CRPM

Median (IQR)

− 1.8

(− 11.0, 6.8)

− 3.6

(− 14.7, 16.3)

0.854

1.5

(− 8.2, 10.7)

− 4.2

(− 13.1, 10.6)

0.490

EL-NE

Median (IQR)

0.0

(0.0, 11.6)

0.0

(− 31.9, 0.9)

0.222

0.2

(0.0, 23.1)

0.0

(− 32.6, 8.0)

0.212

VICM

Median (IQR)

− 17.3

(− 63.6, 49.1)

− 36.3

(− 66.0, 9.4)

0.559

− 16.1

(− 70.3, 27.8)

− 37.9

(− 64.9, 42.3)

0.926

CRP

Median (IQR)

− 56.7

(− 82.66–26.78)

− 83.64

(− 94.10–58.75)

0.086

183.3

(− 33.81–458.11)

− 9.5

(60.34–120.71)

0.456

  1. PRO-C1 type I collagen formation, PRO-C3 type III collagen formation, PRO-C4 type IV collagen turnover, PRO-C6 type VI collagen formation, C3M degradation of type III collagen, C4M degradation of type IV collagen, C6M degradation of type VI collagen, C7M degradation of type VII collagen, C10C degradation of type X collagen, CRPM degradation of C-reactive protein, EL-NE degradation of elastin, VICM degraded and citrullinated vimentin; IQR inter quartile range