I uge 24 krydsede placebogruppen over til infliximab induktionsbehandling (5 mg/ kg) efterfulgt af infliximab vedligeholdelsesbehandling (5 mg/ kg).
At week 24, the placebo group crossed over to infliximab induction therapy (5 mg/ kg) followed by infliximab maintenance therapy (5 mg/ kg).