Effects of Probiotics on Rheumatoid Arthritis Patients
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- The primary outcome will be the number of patients that achieve an ACR20 response. So we will compare the number of patients that achieved an ACR20 response in the probiotic group to those that achieved an ACR20 response in the placebo group.
研究概览
简要总结
The purpose of the present study is to examine the utility of probiotics as an adjunctive therapy (in addition to patients' pharmacotherapy) for the treatment of Rheumatoid Arthritis.
We hypothesize that specifically selected probiotics, Lactobacillus rhamnosus GR-1 and L. reuteri RC-14, can alleviate symptoms of RA and thereby increase the daily activity of these patients.
详细描述
Patients between 18 - 80 years old who have Rheumatoid arthritis with at least 4 swollen and tender joints will be randomized to receive by mouth two capsules containing placebo or probiotic, Lactobacillus rhamnosus GR-1 and L. reuteri RC-14, daily. The subjects will continue to take the placebo or probiotic, in addition to their RA medications (i.e. ongoing medication and/or other therapy, such as physiotherapy are permitted, except immunotherapy) for three months.
At day 0 (visit #1) (when recruited and just prior to starting to take capsules), at day 45 (visit #2), and at day 90 (visit #3), blood samples of approximately 40 ml of blood (8 teaspoons) will be collected by clinical technicians working in the Lab Test Centre at St. Joseph's Health Center. The blood samples will be used to evaluate Erythrocyte Sedimentation Rate (ESR) and C-reactive protein level. In addition, immunological markers like TNFα, IL-12, IL-10 and G-CSF will also be measured. Serum creatinine and liver function will be evaluated as parameters of any side effects of the probiotics.
Probiotics/placebo will be dispensed from the pharmacy and provided to the subjects by the study investigator at the first visit (for the first 45 days) and second visit (for the final 45 days).
At day 0, 45 and 90 (visits 1, 2 and 3) a physical exam will be completed, where the physician will count the number of swollen and tender joints and complete the Physician Global Assessment of Disease activity. In addition, at these times, the patients will be asked to complete the following self-administered questionnaires:
- Health Assessment Questionnaire (HAQ);
- Patient's Global Assessment of Disease Activity
- Patient Assessment of Pain and Assessment of Duration of Morning stiffness.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Supportive Care
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Are between the ages of 18 to 80
- •Are clinically diagnosed with RA (according to ACR criteria)
- •Have been on stable RA treatment and are expected to stay on stable RA treatment during the time of the study (i.e. ongoing medication and/or other therapy, such as physiotherapy are permitted, except immunotherapy).
- •Have at least 4 swollen and tender joints on a 64/66 scale
- •Women of childbearing capacity and who agree to an acceptable method of birth control. Acceptable methods of birth control will include: hormone therapy (oral birth control pills, injectable or skin patches), barrier contraceptive with spermacide, an intra uterine device (IUD) or complete abstinence (no sexual intercourse).
- •Patients who did not meet any of the exclusion criteria stated below.
排除标准
- •Receiving ongoing immunotherapy for RA
- •Has inflammatory bowel disease or leaky gut
- •Currently consuming probiotics and refuse to have a two week washout period
- •Have known allergies to any component in the study product or placebo
- •Plan to have surgery during the time of the study
- •Mental illness impairing ability to comply with study
- •Women who are pregnant or plan to get pregnant during the study period
- •Women who are breastfeeding
- •Consumption of probiotic-containing products during study treatment
- •Patients participating in another NHP clinical trial
- •Patients enrolled in another clinical trial in the past 3 month
- •Women who are breastfeeding
研究组 & 干预措施
Treatment group
Will receive two Urex-CAP-5 (probiotic Lactobacillus rhamnosus GR-1 and L. reuteri RC-14) capsules daily for 3 months.
干预措施: Probiotic capsules containing Lactobacillus rhamnosus GR-1 and L. reuteri RC-14 (Dietary Supplement)
结局指标
主要结局
The primary outcome will be the number of patients that achieve an ACR20 response. So we will compare the number of patients that achieved an ACR20 response in the probiotic group to those that achieved an ACR20 response in the placebo group.
时间窗: 4 months
次要结局
- Immunological parameters (TNFα, IL-12, IL-10 and G-CSF) along with the eight components of the ACR20 response will be the secondary outcomes. Serum creatinine and liver function will be evaluated as parameters of any side effects of the probiotics.(4 months)
研究者
Gregor Reid
Principal Investigator
Lawson Health Research Institute