A Study to Compare FKB327 Efficacy and Safety With Humira® in Rheumatoid Arthritis Patients (ARABESC)
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ClinicalTrials.gov Identifier: NCT02260791 |
Recruitment Status :
Completed
First Posted : October 9, 2014
Results First Posted : September 20, 2017
Last Update Posted : November 28, 2017
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Condition or disease | Intervention/treatment | Phase |
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Arthritis, Rheumatoid | Drug: FKB327 Drug: Humira® | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 728 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomised, Blinded, Active-Controlled Study to Compare FKB327 Efficacy and Safety With the Comparator Humira® in Rheumatoid Arthritis Patients Inadequately Controlled on Methotrexate |
Study Start Date : | December 2014 |
Actual Primary Completion Date : | July 2016 |
Actual Study Completion Date : | July 2016 |

Arm | Intervention/treatment |
---|---|
Experimental: FKB327
Patients will receive FKB327 40 mg every other week by subcutaneous injection. The treatment period will continue for 22 weeks.
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Drug: FKB327
Solution of FKB327 for subcutaneous injection administered in a dose of 40 mg every 2 weeks for 22 weeks. |
Active Comparator: Humira®
Patients will receive Humira® 40 mg every other week by subcutaneous injection. The treatment period will continue for 22 weeks.
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Drug: Humira®
Solution of Humira® for subcutaneous injection administered in a dose of 40 mg every 2 weeks for 22 weeks. |
- American College of Rheumatology (ACR) 20 Response Rate [ Time Frame: Week 24 ]
The primary efficacy endpoint was the ACR20 response rate at Week 24.
An ACR20 response meant that the patient achieved a 20% improvement in Tender Joint Count and Swollen Joint Count and in at least 3 of the other 5 Core Data Set elements listed below.
- Acute phase reactant (CRP)
- Patient global assessment of disease activity
- Physician global assessment of disease activity
- Patient pain scale
- Disability/functional questionnaire (patient completed Health Assessment Questionnaire Disability Index [HAQ-DI])
- Disease Activity Score 28 (DAS28) Based on C-reactive Protein (DAS28-CRP) Score [ Time Frame: Baseline, Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, and Week 24 ]The DAS28-CRP assessment involved evaluating the number of tender (TJC) and swollen (SJC) joints (out of 28 specified joints), serum CRP, and patient global assessment of disease activity (VAS from 0 to 100, very well to extremely bad). The DAS28-CRP is a number on a scale from 0 to 10 indicating the current activity of the patient's RA. A higher score indicates higher disease activity.
- ACR20 Response Rates Over Time [ Time Frame: Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, and Week 24 ]
An ACR20 response meant that the patient achieved a 20% improvement in Tender Joint Count and Swollen Joint Count and in at least 3 of the other 5 Core Data Set elements listed below.
- Acute phase reactant (CRP)
- Patient global assessment of disease activity
- Physician global assessment of disease activity
- Patient pain scale
- Disability/functional questionnaire (patient completed Health Assessment Questionnaire Disability Index [HAQ-DI])
- ACR50 Response Rates Over Time [ Time Frame: Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, and Week 24 ]
An ACR50 response meant that the patient achieved a 50% improvement in Tender Joint Count and Swollen Joint Count and in at least 3 of the other 5 Core Data Set elements listed below.
- Acute phase reactant (CRP)
- Patient global assessment of disease activity
- Physician global assessment of disease activity
- Patient pain scale
- Disability/functional questionnaire (patient completed Health AssessmentQuestionnaire Disability Index [HAQ-DI])
- ACR70 Response Rates Over Time [ Time Frame: Week 2, Week 4, Week 8, Week 12, Week 16, Week 20, and Week 24 ]
An ACR70 response meant that the patient achieved a 70% improvement in Tender Joint Count and Swollen Joint Count and in at least 3 of the other 5 Core Data Set elements listed below.
- Acute phase reactant (CRP)
- Patient global assessment of disease activity
- Physician global assessment of disease activity
- Patient pain scale
- Disability/functional questionnaire (patient completed Health AssessmentQuestionnaire Disability Index [HAQ-DI])
- Swollen Joint Count [ Time Frame: Baseline and Week 24 ]Counts of swollen joints from amongst 66 selected joints performed by a trained and qualified joint assessor using standardised techniques recommended by the European League Against Rheumatism (EULAR). Joints were classified as swollen/not swollen giving a total possible swollen joint count score of 0 to 66 with higher scores indicating severe disease. Swollen joint count is a value of the individual ACR core set variables.
- Tender Joint Count [ Time Frame: Baseline and Week 24 ]Counts of tender joints from amongst 68 selected joints were performed by a trained and qualified joint assessor using standardised techniques recommended by the European League Against Rheumatism (EULAR). Joints were classified as tender/not tender giving a total possible tender joint count score of 0 to 68 with higher scores indicating severe disease.Tender joint count is a value of the individual ACR core set variables.
- Analysis of Serum C-Reactive Protein (CRP) Concentration [ Time Frame: Baseline and Week 24 ]Analysis of serum C-Reactive Protein (CRP) concentrations for inclusion in the ACR20/50/70 and DAS28-CRP scores was performed by a central laboratory. Elevation of CRP is a nonspecific marker of inflammation. Values above 10 mg/L were considered to be abnormally high. Decrease in level of CRP indicates reduction in inflammation.
- Patient Assessment of Disease Activity [ Time Frame: Baseline and Week 24 ]Patient assessment of disease activity visual analogue scale (VAS) will be assessed on 100-point scales (ranging from very well (0) to extremely bad (100)).The patient assessment of disease activity VAS will contribute to the calculation of the DAS28 score. The patient assessment of disease activity VAS will contribute to the calculation of ACR20, ACR50 and ACR70 response.
- Physician Assessment of Disease Activity [ Time Frame: Baseline and Week 24 ]Physician assessment of disease activity visual analogue scale (VAS) will be assessed on 100-point scale (ranging from very low (0) to very high (100)). The physician assessment of disease activity VAS will contribute to the calculation of ACR20, ACR50 and ACR70 response.
- Patient's Assessment of Pain [ Time Frame: Baseline and Week 24 ]An injection site pain visual analogue score (VAS) will be administered to the patient. To determine the extent of the pain, patients will be asked to place a small vertical mark on a horizontal scale from 0 to 100, the ends of which are labelled with the extreme responses to be measured ("No pain" at 0 and "Intolerable pain" at 100). Patient's assessment of pain is a value of the individual ACR core set variables.
- Health Assessment Questionnaire Disability Index (HAQ-DI) [ Time Frame: Baseline and Week 24 ]The HAQ-DI is a 20-question, self-administered instrument that measures the patient's functional ability on a 4-level difficulty scale (0 to 3, with 0 representing normal or no difficulty and 3 representing inability to perform). Eight categories of functioning are included: dressing, rising, eating, walking, hygiene, reach, grip, and usual activities. This scale is sensitive to change and is a good predictor of future disability. HAQ-DI is a value of the individual ACR core set variables.
- DAS28-CRP Score Over Time [ Time Frame: Baseline and Week 24 ]The DAS28 score is a combined index that has been developed to measure the disease activity in patients with RA and has been extensively validated for its use in clinical studies. The DAS28-CRP assessment involved evaluating the number of tender (TJC) and swollen (SJC) joints (out of 28 specified joints), serum CRP, and patient global assessment of disease activity (VAS from 0 to 100, very well to extremely bad). The individual results are summed using a formula. The DAS28 is a number on a scale from 0 to 10 indicating the current activity of the patient's RA. A higher score indicates higher disease activity.
- DAS28 Score Based on Erythrocyte Sedimentation Rate (DAS28-ESR) [ Time Frame: Baseline, Week 12 and Week 24 ]The DAS28 score is a combined index that has been developed to measure the disease activity in patients with RA and has been extensively validated for its use in clinical studies. The DAS28-ESR assessment involved evaluating the number of tender (TJC) and swollen (SJC) joints (out of 28 specified joints), serum ESR, and patient global assessment of disease activity (VAS from 0 to 100, very well to extremely bad). The individual results are summed using a formula. The DAS28 is a number on a scale from 0 to 10 indicating the current activity of the patient's RA. A higher score indicates higher disease activity.
- Percentage of Patients Developing Anti-drug Antibodies (ADAs) [ Time Frame: Baseline and last sampling day ]Blood samples for the assessment of ADA activity were collected at Baseline (Week 0), prior to dosing at Weeks 2, 4, 12, and 24.
- Trough Adalimumab Concentration [ Time Frame: Week 2, Week 4, Week 12, Week 20, and Week 24 ]Blood samples for the quantification of adalimumab concentration in serum were collected at Baseline (Week 0), prior to dosing at Weeks 2, 4, 12 and 20, and Week 24. Samples were taken prior to dosing (trough samples).

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Male or female aged 18 years or over
- Patients have been diagnosed with Rheumatoid Arthritis (RA) for at least 3 months
- Patient has active RA
- Patient has taken a stable dose of methotrexate for at least 3 months
Exclusion Criteria:
- Patient has been previously treated with adalimumab
- Patient has been previously treated or has ongoing treatment with prohibited medications
- Patient has been immunised with a live or attenuated vaccine in past 4 weeks
- Patient has positive result for HIV, HBV, HCV or TB infection
Other Inclusion/Exclusion criteria may apply.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02260791

Principal Investigator: | Josephine Glover, MD | Coephycient Pharmaceutical Consultancy |
Responsible Party: | Fujifilm Kyowa Kirin Biologics Co., Ltd. |
ClinicalTrials.gov Identifier: | NCT02260791 |
Other Study ID Numbers: |
FKB327-002 |
First Posted: | October 9, 2014 Key Record Dates |
Results First Posted: | September 20, 2017 |
Last Update Posted: | November 28, 2017 |
Last Verified: | October 2017 |
Rheumatoid Arthritis |
Arthritis Arthritis, Rheumatoid Joint Diseases Musculoskeletal Diseases Rheumatic Diseases Connective Tissue Diseases |
Autoimmune Diseases Immune System Diseases Adalimumab Tumor Necrosis Factor Inhibitors Anti-Inflammatory Agents Antirheumatic Agents |