NCT01351805Completed
Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain
Source: ClinicalTrials.gov · Last updated 3 Dec 2025
Brief summary (registry, in English)
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.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 25871 (actual)
- First submitted
- 4 May 2011
- Start date
- Jul 2010
- Primary completion date
- 10 Nov 2018
- Lead sponsor
- Brigham and Women's Hospital
- Diseases
- Psoriasis, Rheumatoid arthritis
- NCT number
- NCT01351805
What you commit to
- Study type: Interventional
- Participants enrolled: 25871
- From Jul 2010 to the primary completion date, 10 Nov 2018
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Criteria the registry did not label
- As for the parent trial, VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259). Individuals with chronic, frequent knee pain at study baseline will be followed as a subcohort. Trial enrollment complete.
Age in the registry: 50 years to - · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Brigham and Women's Hospital Coordinator of this site? Confirm its status | Boston | United States | Unknown status |
Related publications
This page is information, not medical advice. Discuss any trial with your doctor.