Association Between Methotrexate Erythrocyte Polyglutamate Concentration and Clinical Response in Rheumatoid Arthritis Patients Treated With Subcutaneous Injectable Methotrexate
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- MTX-PG concentration
研究概览
简要总结
Methotrexate (MTX) is the first-line treatment of rheumatoid arthritis (RA). In case of MTX failure, it is discussed to start a Biologic Disease-modifying Antirheumatic Drug (bDMARDs) according to the latest European recommendations of the EULAR. Before to add a Biologic Disease-modifying Antirheumatic Drug (bDMARDs), an objective estimation of MTX impregnation could be carried out by MTX polyglutamates (MTX-PG). In rheumatoid arthritis patients with active disease estimated by DAS28 (Disease activity Score 28)> 3.2 insufficiently controlled by MTX subcutaneously and patients in remission obtained with a DAS 28 <2.6 with methotrexate prescribed since more than 6 months at stable dose for at least 3 months, a concentration of MTX-PG will be achieved.
详细描述
The assumption is the association between low methotrexate erythrocyte polyglutamate and low clinical response in rheumatoid arthritis patients treated with subcutaneous injectable methotrexate. Adherence to MTX will be assessed by the Compliance Questionnaire Rheumatology (CQR). Measurement of this adherence could optimize MTX treatment prior to the use of biotherapy which is costly with a lower infectious tolerance.
Correlation between its concentration and compliance assessed by CQR questionnaire will be tested.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age > 18 years and have social security affiliation.
- •Patients followed in the Rheumatology Department at the hospital of St Etienne.
- •Patients with rheumatoid arthritis and :
- •Either Rheumatoid arthritis patients in remission (DAS 28<2.6) with MTX treatment for at least 6months, and with a stable dose for 3months.
- •Or patients with a High Disease Activity Rheumatoid Arthritis activity (DAS 28>3.2) with MTX treatment (≥ 15 mg/weeks), taking MTX treatment for at least 6months with a stable subcutaneous weekly MTX injection (≥ 15 mg/weeks) treatment during the previous 3 months.
- •Signed informed consent.
排除标准
- •Patients treated with another conventional synthetic Disease Modifying Anti-Rheumatic Drugs (csDMARD)
- •Another diagnostic than rheumatoid arthritis
结局指标
主要结局
MTX-PG concentration
时间窗: Hour 1
To compare MTX-PG concentration in patients with active rheumatoid arthritis and patients with rheumatoid arthritis in remission
次要结局
- different metabolites dosing of MTX-PG(Hour 1)
- CQR score(Hour 1)