Trial Outcomes & Findings for This is a Retrospective Observational Study Looking at the Characteristics and Outcomes of Participants Taking Inflectra Using the CorEvitas Rheumatoid Arthritis Registry (NCT NCT05375942)

Data of participants with Rheumatoid Arthritis (RA) who had initiated Inflectra was retrieved from the CorEvitas RA registry and observed in this retrospective observational study.

Data is presented for participants evaluable in Cohort 1 and 2.

Clinical disease activity index (CDAI) was the numerical sum of 4 outcome parameters: tender and swollen joint count based on a 28-joint assessment, participant global assessment and physician global assessment assessed on 0 to 10 millimeter (mm) visual analogue scale (VAS) where 0 mm = minimum possible pain (best) and 100 mm = maximum possible pain (worst). Total score for CDAI ranged from 0 to 76 with higher score indicating greater disease activity. Participants who achieved LDA had CDAI score less than or equal to (\<=)10. Participants with moderate or high disease activity (CDAI greater than \[\>\]10) at baseline were analyzed for this outcome measure.

CDAI was the numerical sum of 4 outcome parameters: tender and swollen joint count based on a 28-joint assessment, participant global assessment and physician global assessment assessed on 0 to 10 mm VAS where 0 mm = minimum possible pain (best) and 100 mm = maximum possible pain (worst). Total score for CDAI ranged from 0 to 76 with higher score indicating greater disease activity. Participants who achieved clinical remission had a CDAI score \<=2.8. Participants with low, moderate or high disease activity (CDAI\>2.8) at baseline were analyzed for this outcome measure.

CDAI was the numerical sum of 4 outcome parameters: tender and swollen joint count based on a 28-joint assessment, participant global assessment and physician global assessment assessed on 0 to 10 mm VAS where 0 mm = minimum possible pain (best) and 100 mm = maximum possible pain (worst). CDAI total score = 0 to 76, higher scores=greater affection due to disease activity. CDAI \<2.8 indicated disease remission, 2.8 to \<10 indicated low disease activity, 10 to \<22 indicated moderate disease activity, and \>=22 indicated high disease activity.

HAQ: participant-reported questionnaire for the assessment of rheumatoid arthritis. It comprised of 20 questions in 8 categories of activities: dress/groom; arise; eat; grip; walk; hygiene; reach; and activities over past week. Each activity was assessed on a 4-point Likert scale from 0 to 3, where 0 = without difficulty, 1 = with some difficulty, 2 = with much difficulty, and 3 = unable to do. Overall score was computed as the sum of domain scores and divided by the number of domains answered. Total possible score ranged from 0 to 3, where 0 = least difficulty and 3 = extreme difficulty, higher scores indicating worse functioning.

Participant pain was measured on a VAS where 0 mm = minimum possible pain (best) and 100 mm = maximum possible pain (worst).

Participant fatigue was measured on a VAS, where 0 mm = no fatigue and 100 mm = worst possible fatigue.

mACR20 response: \>= 20% improvement in tender and swollen joint count and 20% improvement in two of the following four criteria: 1) participant assessment of pain (scored from 0 mm to 100 mm, higher scores indicated worsening of pain); 2) participant global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 3) physician global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 4) self-assessed disability index of the mHAQ (scored from 0 to 3, higher scores indicated worsening of function).

mACR50 response: \>= 50% improvement in tender and swollen joint count and 50% improvement in two of the following four criteria: 1) participant assessment of pain (scored from 0 mm to 100 mm, higher scores indicated worsening of pain); 2) participant global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 3) physician global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 4) self-assessed disability index of the mHAQ (scored from 0 to 3, higher scores indicated worsening of function).

mACR70 response: \>= 70% improvement in tender and swollen joint count and 70% improvement in two of the following four criteria: 1) participant assessment of pain (scored from 0 mm to 100 mm, higher scores indicated worsening of pain); 2) participant global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 3) physician global assessment of disease activity (scored from 0 to 100, higher scores indicated worsening of condition); 4) self-assessed disability index of the mHAQ (scored from 0 to 3, higher scores indicated worsening of function).