NCT02271230

Brief Summary

This study will examine whether an intervention with vitamin D or fish oil supplements can reduce the risk of heart failure among adult men and women during a follow up period of up to five years (starting from the time of randomization into the parent VITAL trial). The investigators hypotheses are that both vitamin D and fish oil supplements will each reduce the risk of heart failure.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
25,871

participants targeted

Target at P75+ for phase_3 heart-failure

Timeline
Completed

Started Aug 2014

Longer than P75 for phase_3 heart-failure

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2014

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 7, 2014

Completed
15 days until next milestone

First Posted

Study publicly available on registry

October 22, 2014

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
2.3 years until next milestone

Results Posted

Study results publicly available

March 18, 2022

Completed
Last Updated

March 18, 2022

Status Verified

February 1, 2022

Enrollment Period

5.3 years

First QC Date

October 7, 2014

Results QC Date

February 23, 2022

Last Update Submit

February 23, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With New Heart Failure Hospitalization

    We will consider any hospitalization for heart failure among participants enrolled in the parent VITAL trial for this ancillary study. Incident heart failure are initially captured through annual questionnaires with subsequent validation by a team of physicians with expertise in cardiovascular medicine and epidemiology. We excluded 36 participants with prevalent heart failure at the time of randomization for the primary analysis.

    5 years

Secondary Outcomes (1)

  • Number of Recurrent Heart Failure Hospitalization

    5 years

Study Arms (4)

Vitamin D and fish oil

EXPERIMENTAL

2000 IU per day and 1 g per day of fish oil

Drug: Vitamin D and fish oil

Vitamin D alone

PLACEBO COMPARATOR

2000 IU Vitamin D and fish oil placebo

Drug: Vitamin D alone

Fish oil (EPA/DHA) alone

EXPERIMENTAL

1 g per day of fish oil and vitamin D placebo

Dietary Supplement: Fish oil (EPA/DHA) alone

Fish oil and vitamin D placebo

PLACEBO COMPARATOR

Placebo for both vitamin D and fish oil

Other: Placebo

Interventions

2000 IU vitamin D and 1g/d fish oil

Vitamin D and fish oil
Fish oil (EPA/DHA) aloneDIETARY_SUPPLEMENT

1 g/d fish oil

Fish oil (EPA/DHA) alone

2000 IU vitamin D

Vitamin D alone
PlaceboOTHER

Vitamin D placebo and fish oil placebo

Fish oil and vitamin D placebo

Eligibility Criteria

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

You may qualify if:

  • Men aged 50 or older or women aged 55 or older
  • Be consuming no more than 800 IU of vitamin D from all supplemental sources combined (individual vitamin D supplements, calcium+vitamin D supplements, medications with vitamin D \[e.g., Fosamax Plus D\], and multivitamins), or, if taking, willing to decrease or forego such use during the trial;
  • Be consuming no more than 1200 mg/d of calcium from all supplemental sources combined, or, if taking, willing to decrease or forego such use during the trial;
  • Not be taking fish oil supplements, or, if taking, willing to forego their use during the trial

You may not qualify if:

  • prevalent heart failure
  • History of cancer (except non-melanoma skin cancer), heart attack, stroke, transient ischemic attack, angina pectoris, CABG, or PCI
  • History of renal failure or dialysis, hypercalcemia, hypo- or hyperparathyroidism, severe liver disease (cirrhosis), or sarcoidosis or other granulomatous diseases such as active chronic tuberculosis or Wegener's granulomatosis;
  • Allergy to fish or soy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02120, United States

Location

MeSH Terms

Conditions

Heart Failure

Interventions

Vitamin DFish OilsSingle Person

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

SecosteroidsSteroidsFused-Ring CompoundsPolycyclic CompoundsOilsLipidsMarital StatusFamily CharacteristicsDemographyPopulation CharacteristicsSocioeconomic Factors

Results Point of Contact

Title
Dr. Luc Djousse
Organization
Brigham and Women's Hospital

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Research, Associate Professor of Medicine

Study Record Dates

First Submitted

October 7, 2014

First Posted

October 22, 2014

Study Start

August 1, 2014

Primary Completion

December 1, 2019

Study Completion

December 1, 2019

Last Updated

March 18, 2022

Results First Posted

March 18, 2022

Record last verified: 2022-02

Locations