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

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

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

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.

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.

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.

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

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

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.

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.

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.

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.

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

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

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

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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

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

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

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

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

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.

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

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.