Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 25,871
- 试验地点
- 1
- 主要终点
- Serum Levels of Biomarkers of Systemic Inflammation: Interleukin-6 (IL-6)
研究概览
简要总结
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is a randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among VITAL participants and will examine whether vitamin D or fish oil have effects upon A) autoimmune disease incidence, B) biomarkers of systemic inflammation, and C) chronic knee pain. Blood samples at baseline and in follow-up will be collected in a randomly selected subcohort of 1500 individuals and analyzed for changes in biomarkers of systemic inflammation: C-reactive protein, interleukin-6, and tumor necrosis factor-receptor 2. Approximately 1300 individuals with chronic, frequent knee pain will be followed with annual questionnaires to evaluate the effects of the supplements on chronic knee pain.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Prevention
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 50 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
Fish Oil
Subjects will receive marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]).
干预措施: placebo pill (Other)
Vitamin D
Subjects will receive vitamin D3 (cholecalciferol) 2000 IU a day.
干预措施: Vitamin D (Dietary Supplement)
Fish Oil
Subjects will receive marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]).
干预措施: Fish Oil (Drug)
Vitamin D
Subjects will receive vitamin D3 (cholecalciferol) 2000 IU a day.
干预措施: placebo pill (Other)
placebo
Subjects will receive placebo pill.
干预措施: placebo pill (Other)
Vitamin D and Fish Oil
Subjects will receive marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]).
干预措施: Fish Oil (Drug)
Vitamin D and Fish Oil
Subjects will receive marine omega-3 fatty acids (465 mg of eicosapentaenoic acid [EPA] and 375 mg of docosahexaenoic acid [DHA]).
干预措施: Vitamin D (Dietary Supplement)
结局指标
主要结局
Serum Levels of Biomarkers of Systemic Inflammation: Interleukin-6 (IL-6)
时间窗: Baseline and 1 year
In a subsample of the randomized trial population across the four arms, blood samples at baseline and in follow-up were collected and analyzed for changes in biomarkers of systemic inflammation: C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-receptor 2 (TNFR2). We tested whether either or both supplements were associated with a decrease in the biomarkers of systemic inflammation (blood biomarker levels among those receiving supplements vs. placebo). We also tested whether there were interactions between the two supplements in their effects on changes in the IL-6 serum biomarker of systemic inflammation.
Serum Levels of Biomarkers of Systemic Inflammation: C-reactive Protein (CRP)
时间窗: Baseline and 1 year
In a subsample of the randomized trial population across the four arms, blood samples at baseline and in follow-up were collected and analyzed for changes in biomarkers of systemic inflammation: C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-receptor 2 (TNFR2). We tested whether either or both supplements were associated with a decrease in the biomarkers of systemic inflammation (blood biomarker levels among those receiving supplements vs. placebo). We also tested whether there were interactions between the two supplements in their effects on changes in the CRP serum biomarker of systemic inflammation.
Serum Levels of Biomarkers of Systemic Inflammation: Tumor Necrosis Factor-receptor 2 (TNFR2)
时间窗: Baseline and 1 year
In a subsample of the randomized trial population across the four arms, blood samples at baseline and in follow-up were collected and analyzed for changes in biomarkers of systemic inflammation: C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-receptor 2 (TNFR2). We tested whether either or both supplements were associated with a decrease in the biomarkers of systemic inflammation (blood biomarker levels among those receiving supplements vs. placebo). We also tested whether there were interactions between the two supplements in their effects on changes in the TNFR2 serum biomarker of systemic inflammation.
Incident Autoimmune Diseases
时间窗: 5 years
All participants were followed for the development of new autoimmune diseases, including, but not limited to, rheumatoid arthritis, psoriasis, autoimmune thyroid disease, inflammatory bowel disease and polymyalgia rheumatica. The primary endpoint was all incident autoimmune disease confirmed by extensive medical record review. Participants self-reported all incident autoimmune diseases from baseline through follow-up. We used Cox proportional hazards models to test the effects of vitamin D and n-3 fatty acids upon autoimmune disease incidence. We compared the separate main effects of vitamin D or n-3 fatty acid supplement assignment on AD incidence using Cox regression models. To account for randomization stratification and study design, we additionally adjusted for age, sex, self-reported race, and randomization to the other supplement. Person-time was counted until diagnosis of a new confirmed AD, death, or the end of the trial. We also test interactions between the two supplements
Severity of Knee Pain in Subsample With Chronic, Frequent Knee Pain at Baseline- With n-3 FA & Vitamin D
时间窗: Baseline and 5 years
Western Ontario and McMaster University Osteoarthritis Index (WOMAC) Pain was the primary outcome on a scale of 0-100 with 100= worst pain. Subsample of VITAL participants with chronic, frequent knee pain at trial baseline were followed with annual WOMAC questionnaires to test for change in severity of chronic knee pain in those taking Omega-3 fish oil (n-3 FA) supplements compared to those taking placebo and for those taking Vitamin D supplements compared to those taking placebo. We tested whether n-3 FA supplements and Vitamin D are associated with reduced levels of WOMAC knee pain at the end of the trial (comparing knee pain outcomes in those receiving supplements to placebo). We will also test whether there were multiplicative interactions between the two supplements for the outcome of knee pain severity by WOMAC-Pain index
次要结局
- Incident Autoimmune Disease(extension of follow-up through 2 years post trial closure, up to 7 years)
研究者
Karen H. Costenbader
Associate Physician
Brigham and Women's Hospital