Enbrel var betydeligt bedre end placebo i alle dele af ACR- kriterierne såvel som andre mål for sygdomsaktiviteten af reumatoid artrit, der ikke er medtaget i ACR - responskriterierne, som f. eks. morgenstivhed.
Enbrel was significantly better than placebo in all components of the ACR criteria as well as other measures of rheumatoid arthritis disease activity not included in the ACR response criteria, such as morning stiffness.