Special Investigation (Follow-up Survey of the Study of Adalimumab (D2E7) for Prevention of Joint Destruction in Patients With Rheumatoid Arthritis in Japan (M06-859 (NCT00870467))

Matrix Metalloprotease-3 (MMP-3)

MMP-3 level in serum. Positive = \>/= 121.0 ng/mL (male) and 59.7 ng/mL (female)

Time frame: Weeks 0, 26, and 52

Modified Total Sharp Score (mTSS) Change From Week 0 to Week 52

Modified Total Sharp Score (mTSS) is a method of assessing radiographs used in evaluation of inhibition of joint destruction of disease. Digitized X-rays of hands and feet were obtained, then scored in a blinded manner: for erosion (0 \[no damage\] to 5 \[complete collapse or total destruction of joint\]) and for joint space narrowing (0 \[no damage\] to 4 \[complete luxation of joint\]). Sum of scores was given as total mTSS (0 \[normal\] to 380 \[maximal disease\]). Large positive change in mTSS indicates disease progression; small positive/no change indicates slowing/halting of disease progression.

Time frame: Week 0 to Week 52

Health Assessment Questionnaire Disability Index (HAQ-DI)

Participants assessed their ability to perform the following tasks: 1) dress/groom; 2) arise; 3) eat; 4) walk; 5) reach; 6) grip; 7) maintain hygiene; and 8) maintain daily activity. Participants assessed their ability to do these tasks over the past week by marking their response on a questionnaire. Possible responses/scores included the following: without any difficulty (0); with some difficulty (1); with much difficulty (2); and unable to do (3). Negative mean changes from baseline in the disability index of the HAQ-DI indicated improvement.