NCT01782352

Brief Summary

The VITamin D and OmegA-3 Trial (VITAL; NCT 01169259) is a randomized clinical trial in 25,875 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 participants in VITAL and will examine whether vitamin D or omega-3 fatty acids, compared to placebo, reduce the incidence and/or progression of age-related macular degeneration (AMD).

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
25,871

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2010

Completed
2.6 years until next milestone

First Submitted

Initial submission to the registry

January 31, 2013

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 1, 2013

Completed
6.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
2.7 years until next milestone

Results Posted

Study results publicly available

August 22, 2022

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2024

Completed
Last Updated

August 8, 2023

Status Verified

July 1, 2023

Enrollment Period

9.4 years

First QC Date

January 31, 2013

Results QC Date

October 27, 2021

Last Update Submit

July 28, 2023

Conditions

Keywords

age-related macular degenerationincidenceprogression

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With an AMD Event

    AMD Event = a composite endpoint of incident AMD plus cases of progression to advanced AMD among participants with AMD at baseline

    5 years

Secondary Outcomes (2)

  • Number of Participants With Incident Visually-Significant AMD

    5 years

  • Number of Participants With Incident Advanced AMD

    5 years

Other Outcomes (3)

  • Number of Participants With Incident AMD

    5 years

  • Number of Participants With AMD Progression

    5 years

  • Number of Participants With an AMD Event, Excluding the First Two Years of Follow-up

    5 years (excluding the first two years of follow-up)

Study Arms (4)

Vitamin D + fish oil placebo

ACTIVE COMPARATOR

Vitamin D3 (cholecalciferol), 2000 IU per day Fish oil placebo

Dietary Supplement: Vitamin D3Dietary Supplement: Fish oil placebo

Vitamin D placebo + fish oil

ACTIVE COMPARATOR

Vitamin D placebo Omacor, 1 capsule per day. Each capsule of Omacor contains 840 milligrams of marine omega-3 fatty acids (465 mg. of eicosapentaenoic acid \[EPA\] and 375 mg of docosahexaenoic acid \[DHA\])

Drug: Omega-3 fatty acids (fish oil)Dietary Supplement: Vitamin D3 placebo

Vitamin D placebo + fish oil placebo

PLACEBO COMPARATOR

Vitamin D placebo fish oil placebo

Dietary Supplement: Vitamin D3 placeboDietary Supplement: Fish oil placebo

Vitamin D + fish oil

ACTIVE COMPARATOR

Vitamin D (cholecalciferol), 2000 IU per day Omacor, 1 capsule per day. Each capsule of Omacor contains 840 milligrams of marine omega-3 fatty acids (465 mg. of eicosapentaenoic acid \[EPA\] and 375 mg of docosahexaenoic acid \[DHA\])

Drug: Omega-3 fatty acids (fish oil)Dietary Supplement: Vitamin D3

Interventions

Also known as: Omacor
Vitamin D + fish oilVitamin D placebo + fish oil
Vitamin D3DIETARY_SUPPLEMENT
Also known as: cholecalciferol
Vitamin D + fish oilVitamin D + fish oil placebo
Vitamin D3 placeboDIETARY_SUPPLEMENT
Vitamin D placebo + fish oilVitamin D placebo + fish oil placebo
Fish oil placeboDIETARY_SUPPLEMENT
Vitamin D + fish oil placeboVitamin D placebo + fish oil placebo

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • All participants in VITAL (NCT 01169259) are eligible to participate in this ancillary study.

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02215, United States

Location

Related Publications (1)

  • Christen WG, Cook NR, Manson JE, Buring JE, Chasman DI, Lee IM, Bubes V, Li C, Haubourg M, Schaumberg DA; VITAL Research Group. Effect of Vitamin D and omega-3 Fatty Acid Supplementation on Risk of Age-Related Macular Degeneration: An Ancillary Study of the VITAL Randomized Clinical Trial. JAMA Ophthalmol. 2020 Dec 1;138(12):1280-1289. doi: 10.1001/jamaophthalmol.2020.4409.

Related Links

MeSH Terms

Conditions

Macular DegenerationDisease Progression

Interventions

Fatty Acids, Omega-3Fish OilsOmacorCholecalciferol

Condition Hierarchy (Ancestors)

Retinal DegenerationRetinal DiseasesEye DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Dietary Fats, UnsaturatedDietary FatsFatsLipidsFatty Acids, UnsaturatedFatty AcidsOilsCholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane Lipids

Results Point of Contact

Title
VITAL Study Director
Organization
Brigham and Women's Hospital; 900 Commonwealth Ave, 3rd fl.; Boston, MA 02215

Study Officials

  • Debra A Schaumberg, ScD

    Brigham and Women's Hospital

    PRINCIPAL INVESTIGATOR
  • William G Christen, ScD

    Brigham and Women's Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 31, 2013

First Posted

February 1, 2013

Study Start

July 1, 2010

Primary Completion

December 1, 2019

Study Completion

September 1, 2024

Last Updated

August 8, 2023

Results First Posted

August 22, 2022

Record last verified: 2023-07

Locations