ACR 50 Response

ACR 50 Response

A measure—based on American College of Rheumatology criteria—of at least a 50% improvement in the number of tender and swollen joints, and a 50% improvement in at least 3 of the following: the patient’s global assessment of disease status; the patient’s assessment of pain; the patient’s assessment of function—measured using the Stanford Health Assessment Questionnaire—the physician’s global assessment of disease status; serum C-reactive protein levels.
References in periodicals archive ?
The researchers wanted to find out which of these approaches would sufficiently alleviate symptoms to reach an ACR 50 response, which indicates a 50 percent improvement in the number of tender or swollen joints and other criteria including pain, disability, and the doctor's assessment of disease severity.
More than half of patients are achieving an ACR 50 response, and increasingly that is what we are aiming at.
After 2 years of treatment, 42% of patients in the high-dose doxycycline group met the ACR 50 response outcome, as did 33% of the low-dose doxycycline group.
Two patients had an ACR 50 response, and one achieved an ACR 70, said Dr.
Nearly half of the infliximab patients had an ACR 50 response or better vs.
ACR 50 response rates are around 50% and 37%; ACR 70 response rates are 13% and 9%, respectively.
In this group at 24 weeks, 73% achieved an American College of Rheumatology (ACR) 20 response, 43% achieved an ACR 50 response, and 23% reached an ACR 70 response.
Nearly half of the infliximab patients--46% receiving 3 mg/kg and 50% receiving 6 mg/kg--achieved an ACR 50 response or better versus 32% of the methotrexate-only group.