Table 2: Summary of Effectiveness Probabilities (Percentage of Patients Achieving RS)

Biologic Agent %RS Source

Abatacept after IR to anti-TNF therapy Induction -Month 12 11.1% ATTAIN + LTE study (Genovese 2007)
Maintenance
Month 18 13.9% ATTAIN + LTE study (Genovese 2007)
Month 24 17.1% ATTAIN + LTE study (Genovese 2007)

Anti-TNF agents Induction - Month 18 4% REACT trial (Bombardieri 2007)
Maintenance - Month 24 14.4% ATTAIN reanalysis afterIR to 2 anti-TNF agents

Rituximab after IR to anti-TNF therapy Induction -Month 12 6% REFLEX + LTE study (Keystone 2007)
Maintenance
Month 18 13% REFLEX + LTE study (Keystone 2007)
Month 24 12% Keystone (EULAR 2007)

DMARDS Month 24 1% Clinical experts opinion

IR = Insufficient Response.