Skip to content

ARMONIA: An Observational Study of Biologic Drugs in Monotherapy or Combination With DMARDs in Italian Clinical Practice and the Efficacy and Safety of RoActemra/Actemra (Tocilizumab) Monotherapy in Patients With Rheumatoid Arthritis

A Multi-Center Observational Study on the Use of Biologic Drugs as Monotherapy or Combination With DMARDs in Patients With Rheumatoid Arthritis in Italian Clinical Practice (ARMONIA)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01791205
Enrollment
304
Registered
2013-02-13
Start date
2013-05-31
Completion date
2014-10-31
Last updated
2017-01-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rheumatoid Arthritis

Brief summary

This is a multicenter observational study in patients with rheumatoid arthritis in routine clinical practice in Italy. In the retrospective Part 1 of the study, clinical and demographic factors associated with the use of a biologic drug in monotherapy as compared to therapy in combination with Disease-modifying anti-rheumatic drugs (DMARDs) will be evaluated. In the retrospective/prospective Part 2 of the study, efficacy and safety of the use of RoActemra/Actemra (tocilizumab) in monotherapy will be evaluated. Patients will be followed for up to18 months.

Interventions

None listed

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Observational model
COHORT

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Part 1: * Adult patients, \>/= 18 years of age * Diagnosis of rheumatoid arthritis according to American College of Rheumatology (ACR)/ European League Against Rheumatism (EULAR) criteria * Patients who received at least one cycle of biologic therapy, either in monotherapy or in combination, in the 12 months preceding the opening of the first site Part 2: * Patients on monotherapy with RoActemra/Actemra already enrolled in Part 1 of the study

Exclusion criteria

* Patients simultaneously participating in other studies with RoActemra/Actemra at the time of signing informed consent

Design outcomes

Primary

MeasureTime frameDescription
Phase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Demographic characteristics were analyzed in participants at Baseline, where Baseline is considered as the study entry visit (day of informed consent form signed). Demographic characteristics which were taken into account included age in years, race, height in centimeters (cm), weight in Kilograms (Kg), and Body Mass Index (BMI) in Kg/cm\^2. Participants with age =\<, \> 59 years, height =\<, \> 163 cm, weight =\<, \> 65.85 Kg and BMI =\<, \> 24.98 Kg/cm\^2 are reported.
Phase I: Number of Participants With Disease Duration in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The duration of disease is defined as the total time from the diagnosis of rheumatoid arthritis (RA) until the study entry.
Phase I: Number of Participants With Comorbidity in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Comorbidity is the presence of previous or concomitant diseases.
Phase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The autoantibody included seropositive or seronegative participants for rheumatoid factor (RF) and/or anti-cyclic citrullinated protein antibodies (Anti-CCP). RF value higher than 20 Units (U)/milliliter (mL) is considered seropositive and anti-CCP antibodies value higher than 10 U/mL is considered positive.
Phase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The Health Assessment Questionnaire- Disability Index (HAQ-DI) is a participant-reported questionnaire that measured quality of life in terms of physical function of participants with rheumatoid arthritis. It consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity. Participants assessed their ability to do each task over the past seven days. Participants with scores =\< 0.8625 and \> 0.8625 are reported.
Phase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The disease activity included Disease Activity Score 28 (DAS28). The DAS28 is a combined index for measuring disease activity in RA. The index includes swollen joint counts (SJC) and tender joint counts (TJC), acute phase response, and general health status. The DAS28 scale ranges from 0 to 10 (0= no disease activity and 10= maximum disease activity; where higher scores represents higher disease activity. The DAS =\< 2.8 indicates clinical remission, \>2.8 to 10 = low disease activity, \>10 to 22 = moderate disease activity, and \>22 = high disease activity. Participants with DAS28 score =\< 2.6 and \> 2.6 are reported.
Phase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The disease activity included biological markers of inflammation: C-Reactive Protein (CRP) and Erythrocyte Sedimentation Rate (ESR). A reduction in CRP and ESR values indicates improvement. Participants with CRP values =\< 0.28 and \>2.8 milligram/deciliter (mg/dL); and ESR values =\< 11 and \>11 millimeters/hour (mm/hr) are reported.
Phase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The disease activity included Clinical Disease Activity Index (CDAI) which is the numerical sum of four outcome parameters: TJC and SJC based on a 28-joint assessment; and patient's global assessment (PtGA) and physician's global assessment (PhGA) assessed on 0-10 cm visual analog scale (VAS), where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity. Participants with CDAI score =\< 7.75 and \> 7.75 are reported.
Phase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The disease activity included Simplified Disease Activity Index (SDAI) which is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA (based on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity), and CRP. SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 indicates low disease activity, \> 11 to 26 indicates moderate disease activity, and \> 26 indicates high disease activity. Participants with SDAI score =\< 8.17 and \> 8.17 are reported.
Phase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The duration of combination therapy before monotherapy are reported. The duration was estimated by calculating total duration from starting the combination therapy till the participant switched to monotherapy. Participants who started the combination therapy and later switched to monotherapy =\< 337 days, \> 337 days, =\< 336 days, \> 336 days are reported.
Phase I: Number of Participants Treatment Line in Which Monotherapy Has Been Adopted in MonotherapyAt Baseline (Day of informed consent form signed)The first biologic treatment line was defined as the first use of any biologic drug in treatment of rheumatoid arthritis, regardless its association with DMARDs and the second treatment line as the subsequent use of a different biologic drug. Participants who adopted monotherapy as =\< 2 and \> 2 therapy lines are reported. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.
Phase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Participants who received at least one previous treatment with biologics in monotherapy and no previous monotherapy with biologics are reported.
Phase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Participants who had prevalence with at least one previous switch, swaps, and switch/swap to other therapy are reported.
Phase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyAt Baseline (Day of informed consent form signed)Reasons leading to the use of biologic in monotherapy includes DMARDs intolerance, insufficient therapeutic effect, intolerance to biologic drug, low participant's compliance, concomitant pathologies, pregnancy desire, remission from combination therapy, remission from monotherapy, others and unknown. Participants with reason leading to the use of biologic in monotherapy are presented. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.
Phase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyUp to 18 monthsThe probabilities of participant to retain on therapy at various time points are reported.
Phase II: Retention Rate in Therapy, Percentage of Participants Achieving DAS 28 ESR <2.6 and <3.2 at Month 18At month 18Participants who retained the therapy were analyzed for disease activity (DAS28 ESR) at Month 18. The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease.

Secondary

MeasureTime frameDescription
Phase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18Participants who maintained delta DAS28 ESR of \>= 0.6 after 3, 6, 12, and 18 months from the first infusion with tocilizumab as monotherapy are reported. The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); where decrease in score indicated improvement of disease.
Phase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18The DAS28-CRP is a combined index that measured RA disease activity. It is calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). It is calculated by using the formula: DAS28 CRP= 0.56 × square root of TJC (28 joints) + 0.28 square root of SJC (28 joints) + 0.36 × log n at (CRP+1) + 0.014 × PtGA + 0.96. The DAS28 CRP scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease. The DAS28 CRP \< 2.6 indicates disease remission and \>=2.6 to 3.2 indicates low disease activity.
Phase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease. The DAS28 ESR \< 2.6 indicates disease remission and \>=2.6 to 3.2 indicates low disease activity.
Phase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18Percentage of participants achieving CDAI remission \< 2.8, after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy are reported. CDAI is the numerical sum of four outcome parameters: TJC, SJC based on a 28-joint assessment; and PtGA and PhGA assessed on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity.
Phase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18Percentage of participant achieving SDAI remission (\< 3.3), after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy is reported. The SDAI is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA which (based on 0-10 cm VAS, 0 = no disease activity and 10 = worst disease activity, where higher scores represent higher disease activity), and CRP. The SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 = low disease activity, \> 11 to 26 = moderate disease activity, and \> 26 = high disease activity.
Phase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18The mean change from Baseline (day of the first infusion with tocilizumab as monotherapy) in the TJC And SJC after 3, 6, 12 and 18 months is reported. The TJC and SJC were determined for 28 joint counts. The scores ranged from 0 (no disease activity) to 28 (higher/worsen disease activity), where higher scores represents higher disease activity.
Phase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Mean Change From Baseline (day of the first infusion with tocilizumab as monotherapy) in the dose of corticosteroids after 3, 6, 12 and 18 months from Baseline is reported.
Phase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Mean change from baseline in aspartate transaminase (AST), alanine transaminase (ALT), gamma-glutamyl transpeptidase (GGT) and alkaline phosphatase levels are reported.
Phase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18Percentage of participants with change in HAQ (Delta HAQ) of \>= 0.21 after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy are reported. The HAQ consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity.
Phase II: Mean VAS Fatigue Score OvertimeAt Baseline (Day of first administration of TCZ as a monotherapy) and Months 3, 6, 12, and 18The VAS fatigue score ranging from 0 (symptom-free and no arthritis symptoms) to 100 (worsening in symptoms and arthritis disease activity). Higher score indicate worsening.
Phase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular EventsUp to 18 monthsAn adverse event (AE) is any untoward medical occurrence in a participant or clinical investigation subject administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable or unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Pre-existing conditions that worsened during the study were reported as AE. A serious adverse event (SAE) is any untoward medical occurrence that at any dose results in death is life threatening, requires hospitalization or prolongation of hospitalization, or results in disability/incapacity, or congenital anomaly/birth defect. The AE were captured only for Phase II.
Phase II: Number of Participants With Retention in Therapy Without Interruption Due to Side EffectsUp to 18 monthsNumber of participants who retained in therapy without interruption due to side effects is reported.
Phase II: Number of Side Effects That Had Not Induced Discontinuation of TreatmentUp to 18 monthsNumber of side effects (AEs) that had not induced discontinuation of treatment is reported. The AEs were captured only for Phase II.
Phase II: Number of Side Effects That Induced Transient Interruption of TreatmentUp to 18 monthsNumber of side effects (AEs) that induced transient interruption of treatment is reported. The AEs were captured only for Phase II.
Phase II: Mean Change From Baseline in Hemoglobin Levels Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18The mean change in hemoglobin concentration was calculated by subtracting the baseline hemoglobin concentration from the monthly hemoglobin concentration is reported.
Phase I: Median Disease Duration in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The duration of disease is defined as the total time from the diagnosis of RA until the study entry.
Phase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Mean change from baseline in red blood cells (RBC), white blood cells (WBC) and platelets are reported.
Phase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Mean change from baseline in total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides (TG), total bilirubin, direct bilirubin, glucose, creatinine, blood urea nitrogen (BUN) levels are reported.
Phase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Serum electrophoresis parameters includes albumin, alpha-1 globulin, alpha-2 globulin, beta globulin, gamma globulin was reported. Mean change from Baseline values are reported at each time points.
Phase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeFrom Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18Mean Change from Baseline in hematocrit, neutrophils, eosinophils, basophils, lymphocytes, monocytes are reported.
Phase I: Percentage of Participants With Comorbidity in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Comorbidity is the presence of previous or concomitant diseases. Percentage of participants with comorbidity is reported.
Phase I: Mean Health Assessment Questionnaire-Disability Index in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The HAQ-DI is a participant-reported questionnaire that measured quality of life in terms of physical function of participants with rheumatoid arthritis. It consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity. Participants assessed their ability to do each task over the past seven days.
Phase I: Percentage of Participants Who Started Treatment With a Biologic Drug in Monotherapy and Percentage of Participants Who Stopped a DMARDs While Taking a Biologic Drug in Combination TherapyAt Baseline (Day of informed consent form signed)The table below shows percentage participants who started treatment with a biologic drug in monotherapy compared with percentage of participants who stopped DMARDs while taking a biologic drug in combination.
Phase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesAt Baseline (Day of informed consent form signed)The first biologic treatment line was defined as the first use of any biologic drug in treatment of rheumatoid arthritis, regardless its association with DMARDs, the second treatment line as the subsequent use of a different biologic drug and so on for the third, fourth, fifth and sixth treatment line. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.
Phase I: Number of Participants With at Least One Previous Treatment With Biologics Drug as a Monotherapy in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Number of participants who received at least one previous treatment with a biologic drug as a monotherapy in both groups is reported.
Phase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Participants who had prevalence with at least one previous switch, swaps or switch/swap to other therapy either monotherapy or combination therapy are reported.
Phase I: Median DAS28 at Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The DAS28 is a combined index for measuring disease activity in RA. The index includes SJC and TJC, acute phase response, and general health status. The DAS28 scale ranges from 0 to 10 (0= no disease activity and 10= maximum disease activity) where higher scores represents higher disease. The DAS28 \<2.6 indicates disease remission, \>=2.6 and \<3.2 indicates Low disease activity, \>=3.2 and \<=5.1 indicates Moderate disease activity and \>5.1 indicates High disease activity. Median score for DAS28 at the study entry (Baseline) is reported.
Phase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The CDAI is the numerical sum of four outcome parameters: TJC and SJC based on a 28-joint assessment; and PtGA and PhGA assessed on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity. Number of participants with CDAI scores for both the groups at study entry (baseline) are reported.
Phase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The SDAI is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA (assessed on 0-10 cm) VAS; 0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 indicates low disease activity, \> 11 to 26 indicates moderate disease activity, and \> 26 indicates high disease activity.
Phase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Mean of tender and swollen joints was determined by examining 28 joints and identified the joints that were painful under pressure or to passive motion. The number of tender and swollen joints was recorded on the joint assessment as no tenderness = 0 and tenderness = 1.
Phase I: Percentage of Participants Treated With Corticosteroids at Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)The percentage of participants treated with corticosteroids at enrollment is reported.
Phase I: Mean Dose of Corticosteroids At Study Entry in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Mean dose of corticosteroids at study entry (Baseline) is reported.
Phase I: Mean Duration of Previous Treatment With a Biologic Drug in Monotherapy and Combination TherapyAt Baseline (Day of informed consent form signed)Mean duration of previous treatment with a biologic drug in monotherapy are reported.
Phase I: Mean Duration of Treatment With A Biologic Drug in Combination With DMARDs Before MonotherapyAt Baseline (Day of informed consent form signed)Mean duration of treatment with a biologic drug in combination with DMARDs before monotherapy is reported in days.
Phase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18At Months 3, 6, 12, and 18Participants who maintained the change in DAS28 (Delta DAS28) CRP of \>=0.6 after 3, 6, 12, and 18 months from the first infusion with tocilizumab as monotherapy are reported. The DAS28-CRP is a combined index that measured RA disease activity. It is calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). It is calculated by using the formula: DAS28 CRP= 0.56 × square root of TJC 28 + 0.28 square root of SJC 28 + 0.36 × log n at (CRP+1) + 0.014 × PtGA + 0.96. The DAS28 CRP- scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease.

Countries

Italy

Participant flow

Recruitment details

A total of 304 participants were enrolled in the study conducted from May 2013 to October 2014 at 29 centers in Italy.

Participants by arm

ArmCount
Monotherapy
Eligible participants who received any biologic drug as a monotherapy in the 12 months prior to the study entry were observed for Phase I. Participants who were enrolled in Phase I and received TCZ as a monotherapy were observed for 18 months from the first infusion of TCZ in Phase II, where TCZ was prescribed according to the approved product information, local treatment guidelines and/or routine clinical practice.
152
Combination Therapy
Eligible participants who received any biologic drug in combination with disease-modifying anti-rheumatic drugs (DMARDs) in the 12 months prior to study entry were observed for Phase I.
152
Total304

Withdrawals & dropouts

PeriodReasonFG000FG001
Phase IIAdverse Event20
Phase IILack of Efficacy60
Phase IILost to Follow-up10
Phase IIPhysician's decision10
Phase IIRemission of disease10
Phase IISafety10

Baseline characteristics

CharacteristicMonotherapyCombination TherapyTotal
Age, Continuous57.4 years
STANDARD_DEVIATION 12.5
59.4 years
STANDARD_DEVIATION 10.9
58.4 years
STANDARD_DEVIATION 11.8
Gender
Female
130 Participants127 Participants257 Participants
Gender
Male
22 Participants25 Participants47 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
54 / 104
serious
Total, serious adverse events
5 / 104

Outcome results

Primary

Phase II: Percentage of Participants Who Retained on Tocilizumab Monotherapy

The probabilities of participant to retain on therapy at various time points are reported.

Time frame: Up to 18 months

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 32393.3 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 37592.3 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 199.0 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 3397.1 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 6696.2 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 16895.2 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 23694.2 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 41491.3 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 42390.4 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 44289.4 Percentage of participants
MonotherapyPhase II: Percentage of Participants Who Retained on Tocilizumab MonotherapyDay 45988.5 Percentage of participants
Primary

Phase II: Retention Rate in Therapy, Percentage of Participants Achieving DAS 28 ESR <2.6 and <3.2 at Month 18

Participants who retained the therapy were analyzed for disease activity (DAS28 ESR) at Month 18. The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease.

Time frame: At month 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Retention Rate in Therapy, Percentage of Participants Achieving DAS 28 ESR <2.6 and <3.2 at Month 18DAS28 ESR<2.664.71 Percentage of participants
MonotherapyPhase II: Retention Rate in Therapy, Percentage of Participants Achieving DAS 28 ESR <2.6 and <3.2 at Month 18DAS 28 ESR > 2.6 to =<3.280.39 Percentage of participants
Comparison: The relation between retention rate and DAS28 (\<2.6 vs \<3.2) was assayed with the Cox regression.p-value: 0.119495% CI: [0.65, 19.33]Regression, Cox
Primary

Phase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination Therapy

Participants who received at least one previous treatment with biologics in monotherapy and no previous monotherapy with biologics are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination TherapyNo biologics95 Participants
MonotherapyPhase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination TherapyAt least one biologics57 Participants
Combination TherapyPhase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination TherapyNo biologics125 Participants
Combination TherapyPhase I: Number of Biologics Administered as Monotherapy in Monotherapy and Combination TherapyAt least one biologics27 Participants
Primary

Phase I: Number of Participants Treatment Line in Which Monotherapy Has Been Adopted in Monotherapy

The first biologic treatment line was defined as the first use of any biologic drug in treatment of rheumatoid arthritis, regardless its association with DMARDs and the second treatment line as the subsequent use of a different biologic drug. Participants who adopted monotherapy as =\< 2 and \> 2 therapy lines are reported. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants Treatment Line in Which Monotherapy Has Been Adopted in MonotherapyTreatment line, =< 2106 Participants
MonotherapyPhase I: Number of Participants Treatment Line in Which Monotherapy Has Been Adopted in MonotherapyTreatment line, > 246 Participants
Primary

Phase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination Therapy

The autoantibody included seropositive or seronegative participants for rheumatoid factor (RF) and/or anti-cyclic citrullinated protein antibodies (Anti-CCP). RF value higher than 20 Units (U)/milliliter (mL) is considered seropositive and anti-CCP antibodies value higher than 10 U/mL is considered positive.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyRF Positive (n= 128, 128)69 Participants
MonotherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyRF Negative (n= 128, 128)59 Participants
MonotherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyAnti-CCP Positive (n= 100, 103)61 Participants
MonotherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyAnti-CCP Negative (n= 100, 103)39 Participants
Combination TherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyAnti-CCP Negative (n= 100, 103)31 Participants
Combination TherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyRF Positive (n= 128, 128)79 Participants
Combination TherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyAnti-CCP Positive (n= 100, 103)72 Participants
Combination TherapyPhase I: Number of Participants With Autoantibody Status (Rheumatoid Factor and Anti-cyclic Citrullinated Protein Antibodies) in Monotherapy and Combination TherapyRF Negative (n= 128, 128)49 Participants
Primary

Phase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination Therapy

The disease activity included Clinical Disease Activity Index (CDAI) which is the numerical sum of four outcome parameters: TJC and SJC based on a 28-joint assessment; and patient's global assessment (PtGA) and physician's global assessment (PhGA) assessed on 0-10 cm visual analog scale (VAS), where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity. Participants with CDAI score =\< 7.75 and \> 7.75 are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at Baseline are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination TherapyCDAI Score =< 7.7537 Participants
MonotherapyPhase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination TherapyCDAI Score > 7.7537 Participants
Combination TherapyPhase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination TherapyCDAI Score =< 7.7539 Participants
Combination TherapyPhase I: Number of Participants With Clinical Disease Activity Index in Monotherapy and Combination TherapyCDAI Score > 7.7538 Participants
Primary

Phase I: Number of Participants With Comorbidity in Monotherapy and Combination Therapy

Comorbidity is the presence of previous or concomitant diseases.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureValue (NUMBER)
MonotherapyPhase I: Number of Participants With Comorbidity in Monotherapy and Combination Therapy121 Participants
Combination TherapyPhase I: Number of Participants With Comorbidity in Monotherapy and Combination Therapy116 Participants
Primary

Phase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination Therapy

The disease activity included biological markers of inflammation: C-Reactive Protein (CRP) and Erythrocyte Sedimentation Rate (ESR). A reduction in CRP and ESR values indicates improvement. Participants with CRP values =\< 0.28 and \>2.8 milligram/deciliter (mg/dL); and ESR values =\< 11 and \>11 millimeters/hour (mm/hr) are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at Baseline are reported. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyCRP =< 0.28 mg/dL (n= 128, 129)66 Participants
MonotherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyCRP > 0.28 mg/dL (n= 128, 129)62 Participants
MonotherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyESR =< 11 mm/h (n= 135, 136)80 Participants
MonotherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyESR > 11 mm/h (n= 135, 136)55 Participants
Combination TherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyESR > 11 mm/h (n= 135, 136)77 Participants
Combination TherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyESR =< 11 mm/h (n= 135, 136)59 Participants
Combination TherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyCRP > 0.28 mg/dL (n= 128, 129)65 Participants
Combination TherapyPhase I: Number of Participants With C-Reactive Protein Value and Erythrocyte Sedimentation Rate in Monotherapy and Combination TherapyCRP =< 0.28 mg/dL (n= 128, 129)64 Participants
Primary

Phase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination Therapy

Demographic characteristics were analyzed in participants at Baseline, where Baseline is considered as the study entry visit (day of informed consent form signed). Demographic characteristics which were taken into account included age in years, race, height in centimeters (cm), weight in Kilograms (Kg), and Body Mass Index (BMI) in Kg/cm\^2. Participants with age =\<, \> 59 years, height =\<, \> 163 cm, weight =\<, \> 65.85 Kg and BMI =\<, \> 24.98 Kg/cm\^2 are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyHeight >163 cm (n= 149, 150)68 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyRace Caucasian (n= 152, 152)152 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyWeight =< 65.85 Kg (n= 152, 152)84 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyAge > 59 years (n= 152, 152)73 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyWeight > 65.85 Kg, (n= 152, 152)68 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyBMI =< 24.98 Kg/cm^2 (n= 149, 150)77 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyHeight =< 163 cm (n= 149, 150)81 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyBMI > 24.98 Kg/cm^2 (n= 149, 150)72 Participants
MonotherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyAge =< 59 years (n= 152, 152)79 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyBMI > 24.98 Kg/cm^2 (n= 149, 150)76 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyAge =< 59 years (n= 152, 152)75 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyAge > 59 years (n= 152, 152)77 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyRace Caucasian (n= 152, 152)150 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyHeight =< 163 cm (n= 149, 150)69 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyHeight >163 cm (n= 149, 150)81 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyWeight =< 65.85 Kg (n= 152, 152)68 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyBMI =< 24.98 Kg/cm^2 (n= 149, 150)74 Participants
Combination TherapyPhase I: Number of Participants With Demographic Characteristics in Monotherapy and Combination TherapyWeight > 65.85 Kg, (n= 152, 152)84 Participants
Primary

Phase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination Therapy

The disease activity included Disease Activity Score 28 (DAS28). The DAS28 is a combined index for measuring disease activity in RA. The index includes swollen joint counts (SJC) and tender joint counts (TJC), acute phase response, and general health status. The DAS28 scale ranges from 0 to 10 (0= no disease activity and 10= maximum disease activity; where higher scores represents higher disease activity. The DAS =\< 2.8 indicates clinical remission, \>2.8 to 10 = low disease activity, \>10 to 22 = moderate disease activity, and \>22 = high disease activity. Participants with DAS28 score =\< 2.6 and \> 2.6 are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at Baseline are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination TherapyDAS28 with =< 2.6 score67 Participants
MonotherapyPhase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination TherapyDAS28 with >2.6 score54 Participants
Combination TherapyPhase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination TherapyDAS28 with =< 2.6 score55 Participants
Combination TherapyPhase I: Number of Participants With Disease Activity Score 28 in Monotherapy and Combination TherapyDAS28 with >2.6 score67 Participants
Primary

Phase I: Number of Participants With Disease Duration in Monotherapy and Combination Therapy

The duration of disease is defined as the total time from the diagnosis of rheumatoid arthritis (RA) until the study entry.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Disease Duration in Monotherapy and Combination TherapyDuration of disease =< 124 months74 Participants
MonotherapyPhase I: Number of Participants With Disease Duration in Monotherapy and Combination TherapyDuration of disease > 124 months78 Participants
Combination TherapyPhase I: Number of Participants With Disease Duration in Monotherapy and Combination TherapyDuration of disease =< 124 months81 Participants
Combination TherapyPhase I: Number of Participants With Disease Duration in Monotherapy and Combination TherapyDuration of disease > 124 months71 Participants
Primary

Phase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination Therapy

The duration of combination therapy before monotherapy are reported. The duration was estimated by calculating total duration from starting the combination therapy till the participant switched to monotherapy. Participants who started the combination therapy and later switched to monotherapy =\< 337 days, \> 337 days, =\< 336 days, \> 336 days are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 1, =< 337 (n= 81, 74)45 Participants
MonotherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 2, =< 336 (n= 64, 60)36 Participants
MonotherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 1, > 337 (n= 81, 74)36 Participants
MonotherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 2, > 336 (n= 64, 60 )28 Participants
Combination TherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 1, > 337 (n= 81, 74)41 Participants
Combination TherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 1, =< 337 (n= 81, 74)33 Participants
Combination TherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 2, > 336 (n= 64, 60 )34 Participants
Combination TherapyPhase I: Number of Participants With Duration of Combination Therapy Before Monotherapy in Monotherapy and Combination TherapyDuration of combination type 2, =< 336 (n= 64, 60)26 Participants
Primary

Phase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination Therapy

The Health Assessment Questionnaire- Disability Index (HAQ-DI) is a participant-reported questionnaire that measured quality of life in terms of physical function of participants with rheumatoid arthritis. It consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity. Participants assessed their ability to do each task over the past seven days. Participants with scores =\< 0.8625 and \> 0.8625 are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at the time of evaluation are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination TherapyHAQ-DI Score =< 0.862542 Participants
MonotherapyPhase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination TherapyHAQ-DI Score >0.862542 Participants
Combination TherapyPhase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination TherapyHAQ-DI Score =< 0.862540 Participants
Combination TherapyPhase I: Number of Participants With Health Assessment Questionnaire- Disability Index in Monotherapy and Combination TherapyHAQ-DI Score >0.862540 Participants
Primary

Phase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination Therapy

Participants who had prevalence with at least one previous switch, swaps, and switch/swap to other therapy are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one switch30 Participants
MonotherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one swap74 Participants
MonotherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one switch/swap81 Participants
Combination TherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one swap56 Participants
Combination TherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one switch40 Participants
Combination TherapyPhase I: Number of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapyAt least one switch/swap75 Participants
Primary

Phase I: Number of Participants With Reasons Leading to the Use of Biologic in Monotherapy

Reasons leading to the use of biologic in monotherapy includes DMARDs intolerance, insufficient therapeutic effect, intolerance to biologic drug, low participant's compliance, concomitant pathologies, pregnancy desire, remission from combination therapy, remission from monotherapy, others and unknown. Participants with reason leading to the use of biologic in monotherapy are presented. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyDMARDs intolerance41 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyInsufficient therapeutic effect68 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyIntolerance to biologic drug7 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyLow participant compliance5 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyConcomitant pathologies4 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyPregnancy desire3 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyRemission from combination therapy9 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyRemission from monotherapy3 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyOthers8 Participants
MonotherapyPhase I: Number of Participants With Reasons Leading to the Use of Biologic in MonotherapyUnknown3 Participants
Primary

Phase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination Therapy

The disease activity included Simplified Disease Activity Index (SDAI) which is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA (based on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity), and CRP. SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 indicates low disease activity, \> 11 to 26 indicates moderate disease activity, and \> 26 indicates high disease activity. Participants with SDAI score =\< 8.17 and \> 8.17 are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available data at Baseline are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination TherapySDAI Score =< 8.1736 Participants
MonotherapyPhase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination TherapySDAI Score > 8.1736 Participants
Combination TherapyPhase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination TherapySDAI Score =< 8.1735 Participants
Combination TherapyPhase I: Number of Participants With Simplified Disease Activity Index in Monotherapy and Combination TherapySDAI Score > 8.1734 Participants
Secondary

Phase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over Time

Mean change from baseline in aspartate transaminase (AST), alanine transaminase (ALT), gamma-glutamyl transpeptidase (GGT) and alkaline phosphatase levels are reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAST, Month 3 (n= 74)0.75 Units/LiterStandard Deviation 9.35
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAST, Month 6 (n= 74)0.87 Units/LiterStandard Deviation 9.39
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAST, Month 12 (n= 74)0.78 Units/LiterStandard Deviation 8.47
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAST, Month 18 (n= 68)1.53 Units/LiterStandard Deviation 13.4
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeALT, Month 3 (n= 74)3.08 Units/LiterStandard Deviation 20.65
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeALT, Month 6 (n= 76)0.60 Units/LiterStandard Deviation 20.49
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeALT, Month 12 (n= 76)0.08 Units/LiterStandard Deviation 16.15
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeALT, Month 18 (n= 68)0.22 Units/LiterStandard Deviation 18.27
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeGGT, Month 3 (n= 25)-0.84 Units/LiterStandard Deviation 20.45
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeGGT, Month 6 (n= 32)-6.19 Units/LiterStandard Deviation 24.68
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeGGT, Month 12 (n= 30)-4.60 Units/LiterStandard Deviation 21.5
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeGGT, Month 18 (n= 25)-7.48 Units/LiterStandard Deviation 26.5
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAlkaline phosphatase, Month 3 (n= 20)-15.10 Units/LiterStandard Deviation 38.22
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAlkaline phosphatase, Month 6 (n= 21)-21.86 Units/LiterStandard Deviation 38.02
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAlkaline phosphatase, Month 12 (n= 24)-18.17 Units/LiterStandard Deviation 44.29
MonotherapyPhase II: Mean Change From Baseline in Aspartate Transaminase, Alanine Transaminase, Gamma-glutamyl Transpeptidase, and Alkaline Phosphatase Levels Over TimeAlkaline phosphatase, Month 18 (n= 15)-21.60 Units/LiterStandard Deviation 53.45
Secondary

Phase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18

Mean Change From Baseline (day of the first infusion with tocilizumab as monotherapy) in the dose of corticosteroids after 3, 6, 12 and 18 months from Baseline is reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18Month 3 (n= 60)-0.85 milligramsStandard Deviation 4.18
MonotherapyPhase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18Month 6 (n= 54)-1.24 milligramsStandard Deviation 2.28
MonotherapyPhase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18Month 12 (n= 41)-1.71 milligramsStandard Deviation 2.76
MonotherapyPhase II: Mean Change From Baseline in Dose of Corticosteroids at Months 3, 6, 12, and 18Month 18 (n= 38)-1.08 milligramsStandard Deviation 2.12
Secondary

Phase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over Time

Mean Change from Baseline in hematocrit, neutrophils, eosinophils, basophils, lymphocytes, monocytes are reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeHematocrit, Month 3 (n= 60)5.73 Percentage of cellsStandard Deviation 36.25
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeHematocrit, Month 6 (n= 57)-0.11 Percentage of cellsStandard Deviation 7.12
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeHematocrit, Month 12 (n= 57)0.32 Percentage of cellsStandard Deviation 7.26
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeHematocrit, Month 18 (n= 53)-0.35 Percentage of cellsStandard Deviation 8.35
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeNeutrophils, Month 3 (n= 61)-7.82 Percentage of cellsStandard Deviation 11.96
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeNeutrophils, Month 6 (n= 64)-7.69 Percentage of cellsStandard Deviation 11.35
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeNeutrophils, Month 12 (n= 57)-7.16 Percentage of cellsStandard Deviation 11.99
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeNeutrophils, Month 18 (n= 55)-6.69 Percentage of cellsStandard Deviation 13.32
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeEosinophils, Month 3 (n= 58)1.21 Percentage of cellsStandard Deviation 2.54
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeEosinophils, Month 6 (n= 59)1.25 Percentage of cellsStandard Deviation 2.11
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeEosinophils, Month 12 (n= 52)1.30 Percentage of cellsStandard Deviation 2.49
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeEosinophils, Month 18 (n= 51)1.31 Percentage of cellsStandard Deviation 2.16
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeBasophils, Month 3 (n= 58)0.14 Percentage of cellsStandard Deviation 0.67
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeBasophils, Month 6 (n= 59)0.26 Percentage of cellsStandard Deviation 0.63
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeBasophils, Month 12 (n= 52)0.19 Percentage of cellsStandard Deviation 0.47
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeBasophils, Month 18 (n= 51)0.18 Percentage of cellsStandard Deviation 0.41
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeLymphocytes, Month 3 (n= 60)5.58 Percentage of cellsStandard Deviation 9.05
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeLymphocytes, Month 6 (n= 64)5.60 Percentage of cellsStandard Deviation 9.5
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeLymphocytes, Month 12 (n= 57)4.98 Percentage of cellsStandard Deviation 9.67
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeLymphocytes, Month 18 (n= 55)4.55 Percentage of cellsStandard Deviation 11.45
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeMonocytes, Month 3 (n= 58)0.61 Percentage of cellsStandard Deviation 2.87
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeMonocytes, Month 6 (n= 59)1.13 Percentage of cellsStandard Deviation 2.75
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeMonocytes, Month 12 (n= 52)0.46 Percentage of cellsStandard Deviation 2.38
MonotherapyPhase II: Mean Change From Baseline in Hematocrit, Neutrophils, Eosinophils, Basophils, Lymphocytes, and Monocytes Over TimeMonocytes, Month 18 (n= 51)0.59 Percentage of cellsStandard Deviation 2.74
Secondary

Phase II: Mean Change From Baseline in Hemoglobin Levels Over Time

The mean change in hemoglobin concentration was calculated by subtracting the baseline hemoglobin concentration from the monthly hemoglobin concentration is reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Hemoglobin Levels Over TimeMonth 3 (n= 83)0.41 gram/dLStandard Deviation 0.84
MonotherapyPhase II: Mean Change From Baseline in Hemoglobin Levels Over TimeMonth 6 (n= 84)0.34 gram/dLStandard Deviation 0.91
MonotherapyPhase II: Mean Change From Baseline in Hemoglobin Levels Over TimeMonth 12 (n= 80)0.44 gram/dLStandard Deviation 1.01
MonotherapyPhase II: Mean Change From Baseline in Hemoglobin Levels Over TimeMonth 18 (n= 76)0.49 gram/dLStandard Deviation 1.16
Secondary

Phase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over Time

Mean change from baseline in red blood cells (RBC), white blood cells (WBC) and platelets are reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimePlatelets, Month 6 (n= 75)-62.12 10^6 cells/microliterStandard Deviation 72.58
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeRBC, Month 3 (n= 71)0.07 10^6 cells/microliterStandard Deviation 0.32
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeRBC, Month 6 (n= 70)-0.01 10^6 cells/microliterStandard Deviation 0.3
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeRBC, Month 12 (n= 69)0.04 10^6 cells/microliterStandard Deviation 0.32
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeRBC, Month 18 (n= 63)0.05 10^6 cells/microliterStandard Deviation 0.29
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeWBC, Month 3 (n= 83)-1.14 10^6 cells/microliterStandard Deviation 2.01
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeWBC, Month 6 (n= 84)-1.30 10^6 cells/microliterStandard Deviation 2.27
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeWBC, Month 12 (n= 81)-1.30 10^6 cells/microliterStandard Deviation 2.09
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimeWBC, Month 18 (n= 75)-1.48 10^6 cells/microliterStandard Deviation 2.15
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimePlatelets, Month 3 (n= 78)-52.38 10^6 cells/microliterStandard Deviation 71.21
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimePlatelets, Month 12 (n= 73)-54.42 10^6 cells/microliterStandard Deviation 73.4
MonotherapyPhase II: Mean Change From Baseline in Red Blood Cells, White Blood Cells, and Platelets Over TimePlatelets, Month 18 (n= 72)-57.88 10^6 cells/microliterStandard Deviation 76.15
Secondary

Phase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over Time

Serum electrophoresis parameters includes albumin, alpha-1 globulin, alpha-2 globulin, beta globulin, gamma globulin was reported. Mean change from Baseline values are reported at each time points.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlbumin, Month 3 (n= 25)3.92 Percentage of concentrationStandard Deviation 4.23
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlbumin, Month 6 (n= 25)5.23 Percentage of concentrationStandard Deviation 3.29
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlbumin, Month 12 (n= 24)5.35 Percentage of concentrationStandard Deviation 5.14
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlbumin, Month 18 (n= 19)5.95 Percentage of concentrationStandard Deviation 4.45
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-1 globulin, Month 3 (n= 26)-0.85 Percentage of concentrationStandard Deviation 0.94
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-1 globulin, Month 6 (n= 25)-1.09 Percentage of concentrationStandard Deviation 0.91
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-1 globulin, Month 12 (n= 25)-1.00 Percentage of concentrationStandard Deviation 1.1
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-1 globulin, Month 18 (n= 19)-1.11 Percentage of concentrationStandard Deviation 1.03
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-2 globulin, Month 3 (n= 25)-1.74 Percentage of concentrationStandard Deviation 2.12
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-2 globulin, Month 6 (n= 25)-1.68 Percentage of concentrationStandard Deviation 2.3
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-2 globulin, Month 12 (n= 24)-1.91 Percentage of concentrationStandard Deviation 1.95
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeAlpha-2 globulin, Month 18 (n= 19)-2.34 Percentage of concentrationStandard Deviation 1.89
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeBeta globulin, Month 3 (n= 25)-0.94 Percentage of concentrationStandard Deviation 1.36
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeBeta globulin, Month 6 (n= 24)-1.19 Percentage of concentrationStandard Deviation 1.43
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeBeta globulin, Month 12 (n= 24)-0.91 Percentage of concentrationStandard Deviation 1.41
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeBeta globulin, Month 18 (n= 19)-1.07 Percentage of concentrationStandard Deviation 1.18
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeGamma globulin, Month 3 (n= 25)-0.51 Percentage of concentrationStandard Deviation 1.96
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeGamma globulin, Month 6 (n= 26)-1.75 Percentage of concentrationStandard Deviation 3.46
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeGamma globulin, Month 12 (n= 24)-1.51 Percentage of concentrationStandard Deviation 2.44
MonotherapyPhase II: Mean Change From Baseline in Serum Electrophoresis Parameters Over TimeGamma globulin, Month 18 (n= 19)-1.52 Percentage of concentrationStandard Deviation 2.62
Secondary

Phase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18

The mean change from Baseline (day of the first infusion with tocilizumab as monotherapy) in the TJC And SJC after 3, 6, 12 and 18 months is reported. The TJC and SJC were determined for 28 joint counts. The scores ranged from 0 (no disease activity) to 28 (higher/worsen disease activity), where higher scores represents higher disease activity.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18TJC, Month 6 (n= 80)-4.13 JointsStandard Deviation 5.51
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18TJC, Month 12 (n= 72)-4.33 JointsStandard Deviation 6.14
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18SJC, Month 18 (n= 69)-2.46 JointsStandard Deviation 3.75
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18SJC, Month 12 (n= 72)-2.21 JointsStandard Deviation 3.76
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18TJC, Month 3 (n= 78)-2.74 JointsStandard Deviation 6.87
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18TJC, Month 18 (n= 69)-4.30 JointsStandard Deviation 5.89
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18SJC, Month 3 (n= 78)-1.65 JointsStandard Deviation 3.98
MonotherapyPhase II: Mean Change From Baseline in TJC And SJC at Months 3, 6, 12, and 18SJC, Month 6 (n= 80)-2.39 JointsStandard Deviation 3.47
Secondary

Phase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over Time

Mean change from baseline in total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides (TG), total bilirubin, direct bilirubin, glucose, creatinine, blood urea nitrogen (BUN) levels are reported.

Time frame: From Baseline (Day of first administration of TCZ as a monotherapy) to Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Cholesterol, Month 3 (n= 27)10.04 mg/dLStandard Deviation 42.31
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Cholesterol, Month 6 (n= 28)12.61 mg/dLStandard Deviation 49.76
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Cholesterol, Month 12 (n= 31)4.81 mg/dLStandard Deviation 41.59
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Cholesterol, Month 18 (n= 28)5.57 mg/dLStandard Deviation 49
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeLDL Cholesterol, Month 3 (n= 14)-3.63 mg/dLStandard Deviation 24.89
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeLDL Cholesterol, Month 6 (n= 14)13.93 mg/dLStandard Deviation 38.99
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeLDL Cholesterol, Month 12 (n= 16)-2.59 mg/dLStandard Deviation 37.1
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeLDL Cholesterol, Month 18 (n= 14)3.53 mg/dLStandard Deviation 38.31
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeHDL Cholesterol, Month 3 (n= 19)4.16 mg/dLStandard Deviation 6.34
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeHDL Cholesterol, Month 6 (n= 18)0.67 mg/dLStandard Deviation 11.42
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeHDL Cholesterol, Month 12 (n= 19)-1.74 mg/dLStandard Deviation 12.61
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeHDL Cholesterol, Month 18 (n= 18)-1.67 mg/dLStandard Deviation 15.46
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTG, Month 3 (n= 23)-7.91 mg/dLStandard Deviation 45.29
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTG, Month 6 (n= 27)-2.78 mg/dLStandard Deviation 50.39
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTG, Month 12 (n= 26)2.85 mg/dLStandard Deviation 53.05
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTG, Month 18 (n= 27)12.93 mg/dLStandard Deviation 71.09
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Bilirubin, Month 3 (n= 5)0.28 mg/dLStandard Deviation 0.29
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Bilirubin, Month 6 (n= 9)0.18 mg/dLStandard Deviation 0.45
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Bilirubin, Month 12 (n= 9)0.04 mg/dLStandard Deviation 0.28
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeTotal Bilirubin, Month 18 (n= 7)0.36 mg/dLStandard Deviation 0.74
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeDirect Bilirubin, Month 3 (n= 5)0.08 mg/dLStandard Deviation 0.17
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeDirect Bilirubin, Month 6 (n= 9)0.06 mg/dLStandard Deviation 0.28
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeDirect Bilirubin, Month 12 (n= 9)0.03 mg/dLStandard Deviation 0.28
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeDirect Bilirubin, Month 18 (n= 7)0.13 mg/dLStandard Deviation 0.21
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeGlucose, Month 3 (n= 16)2.50 mg/dLStandard Deviation 9
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeGlucose, Month 6 (n= 21)4.13 mg/dLStandard Deviation 29.9
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeGlucose, Month 12 (n= 24)8.24 mg/dLStandard Deviation 27.36
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeGlucose, Month 18 (n= 20)-2.10 mg/dLStandard Deviation 26.15
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeCreatinine, Month 3 (n= 60)-0.02 mg/dLStandard Deviation 0.2
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeCreatinine, Month 6 (n= 64)-0.21 mg/dLStandard Deviation 1.29
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeCreatinine, Month 12 (n= 60)-0.33 mg/dLStandard Deviation 1.6
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeCreatinine, Month 18 (n= 53)-0.38 mg/dLStandard Deviation 1.7
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeBUN, Month 3 (n= 22)1.31 mg/dLStandard Deviation 8.87
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeBUN, Month 6 (n= 25)1.14 mg/dLStandard Deviation 8.8
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeBUN, Month 12 (n= 24)-0.18 mg/dLStandard Deviation 8.31
MonotherapyPhase II: Mean Change From Baseline in Total Cholesterol, Low-density and High-density Lipoprotein Cholesterol, Triglycerides, Total Bilirubin, Direct Bilirubin, Glucose, Creatinine, Blood Urea Nitrogen Levels Over TimeBUN, Month 18 (n= 22)0.06 mg/dLStandard Deviation 8.91
Secondary

Phase II: Mean VAS Fatigue Score Overtime

The VAS fatigue score ranging from 0 (symptom-free and no arthritis symptoms) to 100 (worsening in symptoms and arthritis disease activity). Higher score indicate worsening.

Time frame: At Baseline (Day of first administration of TCZ as a monotherapy) and Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy. Participants with available data at specified time points are denoted as 'n'.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase II: Mean VAS Fatigue Score OvertimeBaseline (n= 19)54.95 Scores on scaleStandard Deviation 25.49
MonotherapyPhase II: Mean VAS Fatigue Score OvertimeMonth 3 (n= 24)40.58 Scores on scaleStandard Deviation 20.67
MonotherapyPhase II: Mean VAS Fatigue Score OvertimeMonth 6 (n= 24)30.42 Scores on scaleStandard Deviation 21.2
MonotherapyPhase II: Mean VAS Fatigue Score OvertimeMonth 12 (n= 17)33.82 Scores on scaleStandard Deviation 23.72
MonotherapyPhase II: Mean VAS Fatigue Score OvertimeMonth 18 (n= 23)23.35 Scores on scaleStandard Deviation 25.01
Secondary

Phase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular Events

An adverse event (AE) is any untoward medical occurrence in a participant or clinical investigation subject administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable or unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Pre-existing conditions that worsened during the study were reported as AE. A serious adverse event (SAE) is any untoward medical occurrence that at any dose results in death is life threatening, requires hospitalization or prolongation of hospitalization, or results in disability/incapacity, or congenital anomaly/birth defect. The AE were captured only for Phase II.

Time frame: Up to 18 months

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular EventsAny SAE5 Participants
MonotherapyPhase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular EventsAny AE56 Participants
MonotherapyPhase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular EventsAE/SAE of special interest10 Participants
MonotherapyPhase II: Number of Participants With Any Adverse Events, Any Serious Adverse Events, Adverse Events of Special Interest, and Tubercular EventsTubercular AE/SAE0 Participants
Secondary

Phase II: Number of Participants With Retention in Therapy Without Interruption Due to Side Effects

Number of participants who retained in therapy without interruption due to side effects is reported.

Time frame: Up to 18 months

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureValue (NUMBER)
MonotherapyPhase II: Number of Participants With Retention in Therapy Without Interruption Due to Side Effects103 Participants
Secondary

Phase II: Number of Side Effects That Had Not Induced Discontinuation of Treatment

Number of side effects (AEs) that had not induced discontinuation of treatment is reported. The AEs were captured only for Phase II.

Time frame: Up to 18 months

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureValue (NUMBER)
MonotherapyPhase II: Number of Side Effects That Had Not Induced Discontinuation of Treatment19 AEs
Secondary

Phase II: Number of Side Effects That Induced Transient Interruption of Treatment

Number of side effects (AEs) that induced transient interruption of treatment is reported. The AEs were captured only for Phase II.

Time frame: Up to 18 months

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureValue (NUMBER)
MonotherapyPhase II: Number of Side Effects That Induced Transient Interruption of Treatment15 AEs
Secondary

Phase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18

Percentage of participant achieving SDAI remission (\< 3.3), after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy is reported. The SDAI is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA which (based on 0-10 cm VAS, 0 = no disease activity and 10 = worst disease activity, where higher scores represent higher disease activity), and CRP. The SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 = low disease activity, \> 11 to 26 = moderate disease activity, and \> 26 = high disease activity.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18Month 312.5 Percentage of participants
MonotherapyPhase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18Month 622.22 Percentage of participants
MonotherapyPhase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18Month 1250.00 Percentage of participants
MonotherapyPhase II: Percentage of Participant Achieving SDAI Remission (< 3.3) at Months 3, 6, 12, and 18Month 1836.36 Percentage of participants
Secondary

Phase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18

Percentage of participants achieving CDAI remission \< 2.8, after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy are reported. CDAI is the numerical sum of four outcome parameters: TJC, SJC based on a 28-joint assessment; and PtGA and PhGA assessed on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18Month 311.11 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18Month 616.67 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18Month 1233.33 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving CDAI Remission (< 2.8) at Months 3, 6, 12, and 18Month 1831.58 Percentage of participants
Secondary

Phase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18

The DAS28-CRP is a combined index that measured RA disease activity. It is calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). It is calculated by using the formula: DAS28 CRP= 0.56 × square root of TJC (28 joints) + 0.28 square root of SJC (28 joints) + 0.36 × log n at (CRP+1) + 0.014 × PtGA + 0.96. The DAS28 CRP scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease. The DAS28 CRP \< 2.6 indicates disease remission and \>=2.6 to 3.2 indicates low disease activity.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 2.6, Month 318.18 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 2.6, Month 643.1 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 2.6, Month 1264.15 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 2.6, Month 1860.78 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 3.2, Month 332.73 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 3.2, Month 667.24 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 3.2, Month 1284.91 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS28 CRP Remission (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 CRP < 3.2, Month 1876.47 Percentage of participants
Secondary

Phase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18

The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease. The DAS28 ESR \< 2.6 indicates disease remission and \>=2.6 to 3.2 indicates low disease activity.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 2.6, Month 314.04 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 2.6, Month 642.62 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 2.6, Month 1253.57 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 2.6, Month 1864.71 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 3.2, Month 324.56 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 3.2, Month 670.49 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 3.2, Month 1283.93 Percentage of participants
MonotherapyPhase II: Percentage of Participants Achieving DAS 28 ESR (< 2.6) and Low Disease Activity (<3.2) at Months 3, 6, 12, and 18DAS28 ESR < 3.2, Month 1880.39 Percentage of participants
Secondary

Phase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18

Participants who maintained the change in DAS28 (Delta DAS28) CRP of \>=0.6 after 3, 6, 12, and 18 months from the first infusion with tocilizumab as monotherapy are reported. The DAS28-CRP is a combined index that measured RA disease activity. It is calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). It is calculated by using the formula: DAS28 CRP= 0.56 × square root of TJC 28 + 0.28 square root of SJC 28 + 0.36 × log n at (CRP+1) + 0.014 × PtGA + 0.96. The DAS28 CRP- scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); decrease in score indicated improvement of disease.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18Month 355.36 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18Month 656.6 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18Month 1260.78 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS 28 CRP of >= 0.6 at Months 3, 6, 12, and 18Month 1860 Percentage of participants
Secondary

Phase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18

Participants who maintained delta DAS28 ESR of \>= 0.6 after 3, 6, 12, and 18 months from the first infusion with tocilizumab as monotherapy are reported. The DAS28 ESR is a measure of the participant's disease activity calculated using TJC (28 joints), SJC (28 joints), PtGA using 0-10 cm VAS (0 = no disease activity and 10 = worst disease activity), and ESR. It is calculated by using the following formula: DAS28 ESR = 0.56 x square root of TJC + 0.28 x square root of SJC + 0.70 x log n at ESR + 0.014 x PtGA. The DAS28 ESR scores ranged from 0.49 (less disease activity) to 9.07 (maximal disease activity); where decrease in score indicated improvement of disease.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18Month 355.00 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18Month 667.86 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18Month 1258.82 Percentage of participants
MonotherapyPhase II: Percentage of Participants Maintaining Delta DAS28 ESR >= 0.6 at Months 3, 6, 12, and 18Month 1872.55 Percentage of participants
Secondary

Phase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18

Percentage of participants with change in HAQ (Delta HAQ) of \>= 0.21 after 3, 6, 12 and 18 months from the first infusion with tocilizumab as monotherapy are reported. The HAQ consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity.

Time frame: At Months 3, 6, 12, and 18

Population: Analysis population included participants who were enrolled in Phase I and received tocilizumab as monotherapy.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18Month 188.11 Percentage of participants
MonotherapyPhase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18Month 38.51 Percentage of participants
MonotherapyPhase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18Month 610.00 Percentage of participants
MonotherapyPhase II: Percentage of Participants With Delta HAQ >= 0.21 at Months 3, 6, 12, and 18Month 1213.89 Percentage of participants
Secondary

Phase I: Mean Dose of Corticosteroids At Study Entry in Monotherapy and Combination Therapy

Mean dose of corticosteroids at study entry (Baseline) is reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants who received corticosteroids were considered for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
MonotherapyPhase I: Mean Dose of Corticosteroids At Study Entry in Monotherapy and Combination Therapy4.64 milligramsStandard Deviation 3
Combination TherapyPhase I: Mean Dose of Corticosteroids At Study Entry in Monotherapy and Combination Therapy4.71 milligramsStandard Deviation 3.12
Secondary

Phase I: Mean Duration of Previous Treatment With a Biologic Drug in Monotherapy and Combination Therapy

Mean duration of previous treatment with a biologic drug in monotherapy are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants who received previous treatment with a biologic drug before monotherapy were considered for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
MonotherapyPhase I: Mean Duration of Previous Treatment With a Biologic Drug in Monotherapy and Combination Therapy1254.7 DaysStandard Deviation 816
Combination TherapyPhase I: Mean Duration of Previous Treatment With a Biologic Drug in Monotherapy and Combination Therapy1188.3 DaysStandard Deviation 995
Secondary

Phase I: Mean Duration of Treatment With A Biologic Drug in Combination With DMARDs Before Monotherapy

Mean duration of treatment with a biologic drug in combination with DMARDs before monotherapy is reported in days.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants who received previous treatment with a biologic drug in combination with DMARDs before monotherapy were considered for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
MonotherapyPhase I: Mean Duration of Treatment With A Biologic Drug in Combination With DMARDs Before Monotherapy1486.1 DaysStandard Deviation 988.4
Combination TherapyPhase I: Mean Duration of Treatment With A Biologic Drug in Combination With DMARDs Before Monotherapy1525.9 DaysStandard Deviation 1132.1
Secondary

Phase I: Mean Health Assessment Questionnaire-Disability Index in Monotherapy and Combination Therapy

The HAQ-DI is a participant-reported questionnaire that measured quality of life in terms of physical function of participants with rheumatoid arthritis. It consisted of 20 questions in eight domains (dressing/grooming, arising, eating, walking, hygiene, reach, grip, and daily activities) rated on a 4-point scale, where 0 (equals) = without difficulties; 1= with some difficulties; 2= with great difficulties; and 3= unable to perform these actions at all. The HAQ-DI scale was an average of all the scores and ranged from 0 (mild disability) to 3 (severe disability), where higher scores represents higher disease activity. Participants assessed their ability to do each task over the past seven days.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureValue (MEAN)Dispersion
MonotherapyPhase I: Mean Health Assessment Questionnaire-Disability Index in Monotherapy and Combination Therapy0.873 Scores on scaleStandard Deviation 0.686
Combination TherapyPhase I: Mean Health Assessment Questionnaire-Disability Index in Monotherapy and Combination Therapy0.915 Scores on scaleStandard Deviation 0.667
p-value: 0.690895% CI: [-0.251, 0.167]t-test, 2 sided
Secondary

Phase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination Therapy

Mean of tender and swollen joints was determined by examining 28 joints and identified the joints that were painful under pressure or to passive motion. The number of tender and swollen joints was recorded on the joint assessment as no tenderness = 0 and tenderness = 1.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available tender and swollen joints at Baseline are reported.

ArmMeasureGroupValue (MEAN)Dispersion
MonotherapyPhase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination TherapyTender Joints2.49 JointsStandard Deviation 3.3
MonotherapyPhase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination TherapySwollen Joints1.29 JointsStandard Deviation 2.34
Combination TherapyPhase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination TherapyTender Joints2.71 JointsStandard Deviation 3.75
Combination TherapyPhase I: Mean Tender Joints and Swollen Joints as Disease Activity at Study Entry in Monotherapy and Combination TherapySwollen Joints1.20 JointsStandard Deviation 2.45
Secondary

Phase I: Median DAS28 at Study Entry in Monotherapy and Combination Therapy

The DAS28 is a combined index for measuring disease activity in RA. The index includes SJC and TJC, acute phase response, and general health status. The DAS28 scale ranges from 0 to 10 (0= no disease activity and 10= maximum disease activity) where higher scores represents higher disease. The DAS28 \<2.6 indicates disease remission, \>=2.6 and \<3.2 indicates Low disease activity, \>=3.2 and \<=5.1 indicates Moderate disease activity and \>5.1 indicates High disease activity. Median score for DAS28 at the study entry (Baseline) is reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available DAS28 score at Baseline are reported.

ArmMeasureValue (MEDIAN)
MonotherapyPhase I: Median DAS28 at Study Entry in Monotherapy and Combination Therapy2.51 Scores on scale
Combination TherapyPhase I: Median DAS28 at Study Entry in Monotherapy and Combination Therapy2.77 Scores on scale
Secondary

Phase I: Median Disease Duration in Monotherapy and Combination Therapy

The duration of disease is defined as the total time from the diagnosis of RA until the study entry.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureValue (MEDIAN)
MonotherapyPhase I: Median Disease Duration in Monotherapy and Combination Therapy125 Months
Combination TherapyPhase I: Median Disease Duration in Monotherapy and Combination Therapy114 Months
p-value: 0.3895Regression, Cox
Secondary

Phase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment Lines

The first biologic treatment line was defined as the first use of any biologic drug in treatment of rheumatoid arthritis, regardless its association with DMARDs, the second treatment line as the subsequent use of a different biologic drug and so on for the third, fourth, fifth and sixth treatment line. According to the study protocol objectives, this analysis was performed only for Monotherapy arm.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 171 Participants
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 235 Participants
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 335 Participants
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 46 Participants
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 54 Participants
MonotherapyPhase I: Number of Participants Receiving a Biologic Drug as Monotherapy at Different Treatment LinesTreatment Line 61 Participants
Secondary

Phase I: Number of Participants With at Least One Previous Treatment With Biologics Drug as a Monotherapy in Monotherapy and Combination Therapy

Number of participants who received at least one previous treatment with a biologic drug as a monotherapy in both groups is reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. One participant in monotherapy group and 4 participants in combination group were not included because they had not received a previous treatment.

ArmMeasureValue (NUMBER)
MonotherapyPhase I: Number of Participants With at Least One Previous Treatment With Biologics Drug as a Monotherapy in Monotherapy and Combination Therapy57 Participants
Combination TherapyPhase I: Number of Participants With at Least One Previous Treatment With Biologics Drug as a Monotherapy in Monotherapy and Combination Therapy27 Participants
Secondary

Phase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination Therapy

The CDAI is the numerical sum of four outcome parameters: TJC and SJC based on a 28-joint assessment; and PtGA and PhGA assessed on 0-10 cm VAS, where 0 = no disease activity and 10 = worst disease activity, where higher scores represents higher disease activity. The CDAI total score ranges from 0 (no disease activity) to 76 (maximal disease activity), where higher scores represents higher disease activity. The CDAI =\< 2.8 indicates clinical remission, \> 2.8 to 10 indicates low disease activity, \> 10 to 22 indicates moderate disease activity, and \> 22 indicates high disease activity. Number of participants with CDAI scores for both the groups at study entry (baseline) are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available CDAI score at Baseline are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyModerate disease activity20 Participants
MonotherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyLow disease activity28 Participants
MonotherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyHigh disease activity8 Participants
MonotherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyDisease remission18 Participants
Combination TherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyHigh disease activity10 Participants
Combination TherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyLow disease activity30 Participants
Combination TherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyModerate disease activity21 Participants
Combination TherapyPhase I: Number of Participants With CDAI Scores at Study Entry in Monotherapy and Combination TherapyDisease remission16 Participants
Secondary

Phase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination Therapy

The SDAI is the numerical sum of five outcome parameters: TJC and SJC (based on a 28-joint assessment), PtGA and PhGA (assessed on 0-10 cm) VAS; 0 = no disease activity and 10 = worst disease activity), and CRP (mg/dL). SDAI total score ranges from 0 (no disease activity) to 86 (maximal disease activity), where higher scores represents higher disease activity. The SDAI =\< 3.3 indicates disease remission, \> 3.4 to 11 indicates low disease activity, \> 11 to 26 indicates moderate disease activity, and \> 26 indicates high disease activity.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. Participants with available SDAI score at Baseline are reported.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyDisease remission19 Participants
MonotherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyModerate disease activity22 Participants
MonotherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyLow disease activity25 Participants
MonotherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyHigh disease activity6 Participants
Combination TherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyLow disease activity26 Participants
Combination TherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyDisease remission17 Participants
Combination TherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyHigh disease activity6 Participants
Combination TherapyPhase I: Number of Participants With SDAI Scores at Study Entry in Monotherapy and Combination TherapyModerate disease activity20 Participants
Secondary

Phase I: Percentage of Participants Treated With Corticosteroids at Study Entry in Monotherapy and Combination Therapy

The percentage of participants treated with corticosteroids at enrollment is reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureValue (NUMBER)
MonotherapyPhase I: Percentage of Participants Treated With Corticosteroids at Study Entry in Monotherapy and Combination Therapy46.05 Percentage of participants
Combination TherapyPhase I: Percentage of Participants Treated With Corticosteroids at Study Entry in Monotherapy and Combination Therapy55.26 Percentage of participants
Secondary

Phase I: Percentage of Participants Who Started Treatment With a Biologic Drug in Monotherapy and Percentage of Participants Who Stopped a DMARDs While Taking a Biologic Drug in Combination Therapy

The table below shows percentage participants who started treatment with a biologic drug in monotherapy compared with percentage of participants who stopped DMARDs while taking a biologic drug in combination.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants. One participant in monotherapy group and 4 participants in combination group were not included because they had not received a previous treatment.

ArmMeasureValue (NUMBER)
MonotherapyPhase I: Percentage of Participants Who Started Treatment With a Biologic Drug in Monotherapy and Percentage of Participants Who Stopped a DMARDs While Taking a Biologic Drug in Combination Therapy49.01 Percentage of Participants
Combination TherapyPhase I: Percentage of Participants Who Started Treatment With a Biologic Drug in Monotherapy and Percentage of Participants Who Stopped a DMARDs While Taking a Biologic Drug in Combination Therapy35.81 Percentage of Participants
p-value: 0.021Pearson's chi-squared test
Secondary

Phase I: Percentage of Participants With Comorbidity in Monotherapy and Combination Therapy

Comorbidity is the presence of previous or concomitant diseases. Percentage of participants with comorbidity is reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureValue (NUMBER)
MonotherapyPhase I: Percentage of Participants With Comorbidity in Monotherapy and Combination Therapy79.61 Percentage of participants
Combination TherapyPhase I: Percentage of Participants With Comorbidity in Monotherapy and Combination Therapy76.32 Percentage of participants
p-value: 0.4995% CI: [0.703, 2.086]Regression, Logistic
Secondary

Phase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination Therapy

Participants who had prevalence with at least one previous switch, swaps or switch/swap to other therapy either monotherapy or combination therapy are reported.

Time frame: At Baseline (Day of informed consent form signed)

Population: Analysis population included all enrolled participants.

ArmMeasureGroupValue (NUMBER)
MonotherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwitch19.74 Percentage of participants
MonotherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwap48.68 Percentage of participants
MonotherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwitch/Swap53.29 Percentage of participants
Combination TherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwitch26.32 Percentage of participants
Combination TherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwap36.84 Percentage of participants
Combination TherapyPhase I: Percentage of Participants With Prevalence of Previous Therapy Switches and Swaps in Monotherapy and Combination TherapySwitch/Swap49.34 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026