Table 2

 Switchers, stratified by first TNFα inhibitor and by reason for switching therapy

No. of patients initiating second treatment (switchers)Switchers’ reason for withdrawing from first treatmentPatients withdrawing from second treatmentReason for withdrawing from second treatment*
AE, Adverse event; LOE, lack of efficacy.
*Of the 81 patients who withdrew from second treatment, 51 initiated a third biological drug.
Infliximab n  =  178LOE n  =  80 (45%)n  =  36LOE n  =  26 (31%)
AE n  =  2 (2%)
Other n  =  8 (9%)
AE n  =  60 (34%)n  =  31LOE n  =  16 (19%)
AE n  =  10 (12%)
Other n  =  5 (6%)
Other n  =  38 (21%)n  =  18
Etanercept n  =  18LOE n  =  8 (44%)n  =  4LOE n  =  3 (38%)
AE n  =  0 (0%)
Other n  =  1 (13%)
AE n  =  4 (22%)n  =  1LOE n  =  1 (13%)
AE n  =  0 (0%)
Other n  =  0 (0%)
Other n  =  6 (34%)n  =  3
Adalimumab n  =  39LOE n  =  21 (54%)n  =  7LOR n  =  6 (40%)
AE n  =  1 (7%)
Other n  =  0 (0%)
AE n  =  8 (21%)n  =  2LOE n  =  1 (7%)
AE n  =  1 (7%)
Other n  =  0 (0%)
Other n  =  10 (26%)n  =  6