NCT01696435

Brief Summary

The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing 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 participants in VITAL and will examine whether vitamin D or fish oil: 1) reduces risk of clinical depressive syndrome, 2) yields better mood scores over time, compared to placebo.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
18,353

participants targeted

Target at P75+ for not_applicable depression

Timeline
Completed

Started Jul 2010

Longer than P75 for not_applicable depression

Geographic Reach
1 country

1 active site

Status
completed

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
2.2 years until next milestone

First Submitted

Initial submission to the registry

September 24, 2012

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 1, 2012

Completed
9.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

March 14, 2023

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

December 10, 2025

Status Verified

November 1, 2025

Enrollment Period

11.5 years

First QC Date

September 24, 2012

Results QC Date

December 30, 2022

Last Update Submit

November 22, 2025

Conditions

Keywords

DepressionDepressive SymptomsMoodGeriatricPrevention

Outcome Measures

Primary Outcomes (2)

  • Number of Participants With a Depression Event

    Depression syndrome will be determined by presence of clinical diagnosis, treatment and/or above-threshold symptoms on mood questionnaire (e.g., PHQ) items. This is an event outcome, where the depression event was defined as a new self-report of physician/clinician-diagnosed depression, treatment (medication and/or counseling) for depression, or presence of clinically relevant depressive symptoms (PHQ-8 total score \>=10 points) on the annual study questionnaires that were administered over a median 5.3 years of randomized treatment and follow-up. Participants were followed for the depression event until the occurrence of the endpoint, death, or the end of the trial, whichever came first. The Outcome Measure table shows the counts of depression events in each randomized group by treatment.

    From date of randomization until the date of the occurrence of the endpoint, death, or the end of the trial, whichever came first, assessed up to a median of 5.3 years of follow-up

  • Mood Scores

    Mood scores are evaluated by the 8-item Patient Health Questionnaire (PHQ-8). The measured outcome was the total PHQ-8 score. The PHQ-8 includes items corresponding to the criteria for major depression. Each of the 8 items can be scored as 0, 1, 2, or 3 points (higher score means worse symptoms). The 8 items are summed to a total PHQ-8 score. The range for the PHQ-8 score is 0-24 points; higher scores denote worse mood or depressive symptoms. The PHQ-8 was measured annually at baseline and at up to 5 follow-up times (for a maximum of 6 time points). Data from all time points was used to determine the mean differences in change in mood scores over all follow-up by randomized treatment. Per protocol, the Statistical Analysis section shows the results for the primary outcome of mean difference in overall change in PHQ-8 scores comparing active and placebo groups (for each agent).

    Baseline, follow-up year 1, follow-up year 2, follow-up year 3, follow-up year 4, and follow-up year 5

Other Outcomes (2)

  • Number of Participants With an Incident Depression Event

    From date of randomization until the date of the occurrence of the endpoint, death, or the end of the trial, whichever came first, assessed up to a median of 5.3 years of follow-up

  • Number of Participants With a Recurrent Depression Event

    From date of randomization until the date of the occurrence of the endpoint, death, or the end of the trial, whichever came first, assessed up to a median of 5.3 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 D placebo

Vitamin D placebo + fish oil placebo

ACTIVE COMPARATOR

Vitamin D placebo Fish oil placebo

Dietary Supplement: Fish oil placeboDietary Supplement: Vitamin D placebo

Vitamin D + fish oil

ACTIVE COMPARATOR

Vitamin D3 (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 \[DHA\])

Dietary Supplement: vitamin D3Drug: omega-3 fatty acids (fish oil)

Interventions

vitamin D3DIETARY_SUPPLEMENT

Vitamin D3 (cholecalciferol), 2000 IU per day

Also known as: cholecalciferol
Vitamin D + fish oilVitamin D + fish oil 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 \[DHA\]).

Also known as: fish oil
Vitamin D + fish oilVitamin D placebo + fish oil
Fish oil placeboDIETARY_SUPPLEMENT

Fish oil placebo

Vitamin D + fish oil placeboVitamin D placebo + fish oil placebo
Vitamin D placeboDIETARY_SUPPLEMENT

Vitamin D placebo

Vitamin D placebo + fish oilVitamin D placebo + fish oil placebo

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Participants in VITAL (NCT 01169259) who meet the following criteria are eligible to participate in this ancillary study. These are the criteria specific for testing of the primary aims in the VITAL-DEP ancillary study: * no current significant depressive symptoms * no core major depressive disorder symptoms for a period of two or more weeks in the past two years * no history of alcohol and/or substance abuse disorder active in the past 12 months, schizophrenia or other primary psychotic disorder, bipolar disorder, post-traumatic stress disorder or obsessive-compulsive disorder * no current psychotherapy or current use of psychotropics (including non-prescription agents for the treatment of mood disorders), except for limited use of mild sedatives/hypnotics * no history of major neurologic disorder or delirium episode in the past 12 months * no history of clinical (i.e., overt and not sub-clinical) hypothyroidism diagnosis

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02215, United States

Location

Related Publications (9)

  • Vyas CM, Kang JH, Mischoulon D, Cook NR, Reynolds Iii CF, Chang G, Mora S, De Vivo I, Manson JE, Okereke OI. Apolipoprotein E and Its Association With Cognitive Change and Modification of Treatment Effects of Vitamin D3 and Omega-3s on Cognitive Change: Results From the In-Clinic Subset of a Randomized Clinical Trial. J Gerontol A Biol Sci Med Sci. 2024 Mar 1;79(3):glad260. doi: 10.1093/gerona/glad260.

  • Vyas CM, Mischoulon D, Chang G, Cook NR, Weinberg A, Copeland T, Kang JH, Bubes V, Friedenberg G, LeBoff MS, Lee IM, Buring JE, Manson JE, Reynolds CF, Okereke OI. Effects of Vitamin D3 and Marine Omega-3 Fatty Acids Supplementation on Indicated and Selective Prevention of Depression in Older Adults: Results From the Clinical Center Sub-Cohort of the VITamin D and OmegA-3 TriaL (VITAL). J Clin Psychiatry. 2023 Jun 26;84(4):22m14629. doi: 10.4088/JCP.22m14629.

  • Vyas CM, Mischoulon D, Chang G, Reynolds CF 3rd, Cook NR, Weinberg A, Copeland T, Bubes V, Bradwin G, Lee IM, Buring JE, Mora S, Rifai N, Manson JE, Okereke OI. Relation of serum BDNF to major depression and exploration of mechanistic roles of serum BDNF in a study of vitamin D3 and omega-3 supplements for late-life depression prevention. J Psychiatr Res. 2023 Jul;163:357-364. doi: 10.1016/j.jpsychires.2023.05.069. Epub 2023 May 26.

  • Vyas CM, Sadreyev RI, Gatchel JR, Kang JH, Reynolds CF, Mischoulon D, Chang G, Hazra A, Manson JE, Blacker D, De Vivo I, Okereke OI. Pilot Study of Second-Generation DNA Methylation Epigenetic Markers in Relation to Cognitive and Neuropsychiatric Symptoms in Older Adults. J Alzheimers Dis. 2023;93(4):1563-1575. doi: 10.3233/JAD-230093.

  • Okereke OI, Vyas CM, Mischoulon D, Chang G, Cook NR, Weinberg A, Bubes V, Copeland T, Friedenberg G, Lee IM, Buring JE, Reynolds CF 3rd, Manson JE. Effect of Long-term Supplementation With Marine Omega-3 Fatty Acids vs Placebo on Risk of Depression or Clinically Relevant Depressive Symptoms and on Change in Mood Scores: A Randomized Clinical Trial. JAMA. 2021 Dec 21;326(23):2385-2394. doi: 10.1001/jama.2021.21187.

  • Kang JH, Vyas CM, Okereke OI, Ogata S, Albert M, Lee IM, D'Agostino D, Buring JE, Cook NR, Grodstein F, Manson JE. Effect of vitamin D on cognitive decline: results from two ancillary studies of the VITAL randomized trial. Sci Rep. 2021 Dec 1;11(1):23253. doi: 10.1038/s41598-021-02485-8.

  • Okereke OI, Reynolds CF 3rd, Mischoulon D, Chang G, Vyas CM, Cook NR, Weinberg A, Bubes V, Copeland T, Friedenberg G, Lee IM, Buring JE, Manson JE. Effect of Long-term Vitamin D3 Supplementation vs Placebo on Risk of Depression or Clinically Relevant Depressive Symptoms and on Change in Mood Scores: A Randomized Clinical Trial. JAMA. 2020 Aug 4;324(5):471-480. doi: 10.1001/jama.2020.10224.

  • Donneyong M, Reynolds C, Mischoulon D, Chang G, Luttmann-Gibson H, Bubes V, Guilds M, Manson J, Okereke O. Protocol for studying racial/ethnic disparities in depression care using joint information from participant surveys and administrative claims databases: an observational cohort study. BMJ Open. 2020 Jan 7;10(1):e033173. doi: 10.1136/bmjopen-2019-033173.

  • Okereke OI, Reynolds CF 3rd, Mischoulon D, Chang G, Cook NR, Copeland T, Friedenberg G, Buring JE, Manson JE. The VITamin D and OmegA-3 TriaL-Depression Endpoint Prevention (VITAL-DEP): Rationale and design of a large-scale ancillary study evaluating vitamin D and marine omega-3 fatty acid supplements for prevention of late-life depression. Contemp Clin Trials. 2018 May;68:133-145. doi: 10.1016/j.cct.2018.02.017. Epub 2018 Mar 8.

Related Links

MeSH Terms

Conditions

Depression

Interventions

CholecalciferolFatty Acids, Omega-3Fish Oils

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipidsDietary Fats, UnsaturatedDietary FatsFatsFatty Acids, UnsaturatedFatty AcidsOils

Results Point of Contact

Title
Dr. Olivia Okereke/Study Principal Investigator
Organization
Massachusetts General Hospital

Study Officials

  • Olivia I Okereke, MD, SM

    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
Olivia I. Okereke, MD, SM, Principal Investigator, Brigham and Women's Hospital

Study Record Dates

First Submitted

September 24, 2012

First Posted

October 1, 2012

Study Start

July 1, 2010

Primary Completion

December 31, 2021

Study Completion

March 31, 2025

Last Updated

December 10, 2025

Results First Posted

March 14, 2023

Record last verified: 2025-11

Locations