Evaluation of the Optimal MTX Dose as an Add-on Therapy to Adalimumab for RA Patients in Japan, South Korea and Taiwan
Rheumatoid Arthritis
About this trial
This is an interventional treatment trial for Rheumatoid Arthritis focused on measuring Methotrexate, Adalimumab, Autoimmune Disease, Connective Tissue Diseases, Rheumatic Disease, Rheumatoid Arthritis
Eligibility Criteria
Inclusion Criteria:
- Patients aged ≥18 years (≥20 years in Taiwan) at the time of informed consent
- Patients who meet the 1987 revised ACR criteria or 2010 ACR/EULAR criteria
- Patients who have RA within 2 years from initial diagnosis to informed consent
- Patients who were previously untreated with MTX, JAK inhibitor, or bDMARDs
- Patients who have disease activity of SDAI >11 at screening
- Patients who are no need for concomitant use of DMARDs other than hydroxychloroquine (only in South Korea and Taiwan) and study drugs during the study as judged by principal investigator/sub-investigator at screening
- Patients who are no need for concomitant use of corticoid steroid equivalent to >10 mg/day prednisolone during the study as judged by principal investigator/sub-investigator at screening.
- Female of child-bearing potential who can use appropriate contraceptive during the study, female in whom time from menopause to informed consent is ≥1 year, or female of no child-bearing potential through sterilization (bilateral tubal ligation, bilateral ovariectomy or hysterectomy, etc.)
- Virile male who can use appropriate contraceptive during the study
- Patients who can adequately understand this study procedures, and voluntarily consent in writing to take part in this study (consent of a legally-acceptable representative is also required for patients aged <20 years in Japan and aged <19 years in South Korea)
Exclusion Criteria:
- Patients who currently have a malignant tumor, except for non-melanoma forms of skin cancer limited within epidermis, and uterine cervix cancer limited within epidermis
- Patients who have serious infections such as sepsis
- Patients who have active tuberculosis
- Patients who have a history or current complication of demyelinating disease such as multiple sclerosis
- Patients who have congestive heart failure
- Pregnant female, or female who intend to conceive during the study period
- Patients who have bone marrow depression and whom investigator considered ineligible
- Patients who have chronic liver disease and whom investigator considered ineligible, and who is positive for HBs antigen
- Patients who have nephropathy and whom investigator considered ineligible
- Lactating female
- Patients who have pleural effusion or ascites
- Patients with a known hypersensitivity to MTX or ADA
- Patients otherwise whom principal investigator/sub-investigator considered medically ineligible to participate in the study
Sites / Locations
- Fujita Health University Hospital
- Chiba University Hospital
- Hiroshima University Hospital
- Kawasaki Municipal Hospital
- Tokai University Hospital
- Tohoku University Hospital
- Nagoya University Hospital
- Seirei Hamamatsu General Hospital
- Keio University Hospital
- National Hospital Organization Tokyo Medical Center
- Nippon Medical School Hospital
- Toho University Ohashi Medical Center
- Chungbuk National University Hospital
- Chungnam National University Hospital
- Gachon University Gil Medical Center
- Seoul National University Bundang Hospital
- Seoul Metropolitan Government Seoul National University Boramae Medical Center
- The Catholic University of Korea, Seoul St. Mary's Hospital
- Chang Gung Medical Foundation, Kaohsiung Chang Gung Memorial Hospital
- Kaohsiung Medical University Chung-Ho Memorial Hospital
- China Medical University Hospital
- National Cheng Kung University Hospital
- National Taiwan University Hospital
- Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
MTX-Monotherapy Group
ADA/MTX-Maximum Tolerated Dose Group
ADA/MTX-Reduced Dose Group
Participants will receive Methotrexate (MTX) at a starting dose of 6 to 8 mg/week, which will be promptly escalated to the maximum tolerated dose (MTD) of ≤25 mg/week up to Week 12, and maintained until Week 24. If the dosage of MTX is maintained ≥ 10 mg/week and simple disease activity index (SDAI) remission is achieved at Week 24, the MTX therapy will continue until Week 48.
Participants will receive Methotrexate (MTX) at a starting dose of 6 to 8 mg/week, which will be promptly escalated to the MTD of ≤25 mg/week up to Week 12, and maintained until Week 24. If the dosage of MTX is maintained ≥ 10 mg/week and SDAI remission is not achieved at Week 24, Adalimumab (ADA) 40 mg will be administered subcutaneously every other week in addition to the MTX therapy until Week 48.
Participants will receive Methotrexate (MTX) at a starting dose of 6 to 8 mg/week, which will be promptly escalated to the MTD of ≤25 mg/week up to Week 12, and maintained until Week 24. If the dosage of MTX is maintained ≥ 10 mg/week and SDAI remission is not achieved at Week 24, Adalimumab (ADA) 40 mg will be administered subcutaneously every other week in addition to low-dose MTX (6 to 8 mg/week) treatment until Week 48.