Efficacy, Pharmacokinetics, and Safety of BI 695500 Versus Rituximab in Patients With Moderately to Severely Active Rheumatoid Arthritis: a Randomized, Double-blind, Parallel Arm, Multiple Dose, Active Comparator Trial.

PK (Part I Only): AUC0-336 (Area Under the Plasma Concentration Versus Time Curve From Time Zero to 336 Hours)

时间窗: Blood PK samples were collected at -00:05 (hours: min) prior to first infusion and 03:55, 24:00, 335:55, 338:00, 339:55, 342:00, 344:00, 360:00, 432:00, 504:00, 672:00, 1176:00, 1512:00, 2352:00 and 2688:00 after first infusion.

PK (Part I only): AUC0-336 (area under the plasma concentration versus time curve from time zero to 336 hours after the first dose). Time zero was the time the first dose started. Only subjects randomized in part I of this study are included.

PK (Part I Only): Observed Cmax (Maximum Plasma Concentration, Determined After the Second Dose)

时间窗: Blood PK samples were collected at -00:05 (hours: min) prior to first infusion and 03:55, 24:00, 335:55, 338:00, 339:55, 342:00, 344:00, 360:00, 432:00, 504:00, 672:00, 1176:00, 1512:00, 2352:00 and 2688:00 after first infusion.

PK (Part I only): observed Cmax (observed maximum plasma concentration, determined after the second dose). Only subjects randomized in part I of this study are included.

Change of Disease Activity Score 28 Erythrocyte Sedimentation Rate (DAS28 [ESR]) From Baseline to Week 24 (BI 695500 Versus Rituxan®) - Part I

时间窗: Baseline and Week 24

The DAS28 score was derived using the formula: DAS28 (ESR) = 0.56\*√(TJC28) + 0.28\*√(SJC28) + 0.70\*ln(ESR) + 0.014\*(GH), where, TJC28 = 28 joint count for tenderness, SJC28 = 28 joint count for swelling, Ln(ESR) = natural logarithm of ESR, GH = the General Health component of the DAS \[score on a visual analogue scale (VAS) ranging from 0 (very well) to 100 (very poor)\]. DAS28 values range from 2.0 to 10.0 while higher values mean a higher disease activity. Low disease activity is defined as a DAS28 score of ≤ 3.2 and DAS28 remission is defined as a DAS28 score of \< 2.6. A clinically important change in DAS28 score is defined as an improvement in DAS28 score of at least 1.2. The full analysis set (FAS) contained all randomized subjects who received at least one dose of trial medication, had at least one assessment of primary efficacy endpoint at Baseline and at post-baseline visit prior or at Week 24 visit.

PK (Part I Only): AUC0-tz (Area Under the Plasma Concentration Versus Time Curve From Time Zero to the Last Measurable Concentration, Determined Over Both Dosages)

时间窗: Blood PK samples were collected at -00:05 (hours: min) prior to first infusion and 03:55, 24:00, 335:55, 338:00, 339:55, 342:00, 344:00, 360:00, 432:00, 504:00, 672:00, 1176:00, 1512:00, 2352:00 and 2688:00 after first infusion.

Pharmacokinetic (PK) (Part I only): AUC0-tz (area under the plasma concentration versus time curve from time zero to the last measurable concentration, determined over both dosages). Time zero was the time the first dose started. Only subjects randomized in part I of this study are included. As per protocol all the following criteria had to be fulfilled for a patient to be defined as PK evaluable for the Pharmacokinetic analysis set (PKS): Full first and second dose given. Pre-dose concentration available prior to the second dose. Ability to estimate AUC during the infusion phases. Ability to estimate the AUC for the distribution phase after the second dose. Ability to estimate the terminal half-life (t1/2) after the second dose. gMean - Geometric Mean

PK (Part I Only): AUC0-inf Pred (Area Under the Plasma Concentration Versus Time Curve From Time Zero to Infinity, Determined Over Both Dosages)

时间窗: Blood PK samples were collected at -00:05 (hours: min) prior to first infusion and 03:55, 24:00, 335:55, 338:00, 339:55, 342:00, 344:00, 360:00, 432:00, 504:00, 672:00, 1176:00, 1512:00, 2352:00 and 2688:00 after first infusion.

PK (Part I only): AUC0-inf pred (area under the plasma concentration versus time curve from time zero to infinity, determined over both dosages, and extrapolated to infinity using predicted last observed quantifiable concentration). Time zero was the time the first dose started. Only subjects randomized in part I of this study are included.