NCT03892395

Brief Summary

An intervention study to investigate the effect of B-vitamin supplementation for 2-years on bone health. This is a dual centre (UCD and University of Ulster) 2-year randomised, placebo controlled, double blind intervention.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2017

Longer than P75 for not_applicable

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

May 5, 2017

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

March 22, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 27, 2019

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2022

Completed
Last Updated

December 8, 2023

Status Verified

December 1, 2023

Enrollment Period

4.9 years

First QC Date

March 22, 2019

Last Update Submit

December 1, 2023

Conditions

Keywords

Healthy ageingB-vitaminsBone health

Outcome Measures

Primary Outcomes (1)

  • Effect of low dose B vitamins on bone mineral density

    A 2 year Randomized Control Trial (RCT) to investigate the effect of low dose B vitamins on bone mineral density (as measured by dual energy X-ray absorptiometry- DXA) in older Irish adults with sub-optimal B-vitamin status at baseline. A DXA bone scan will be performed pre and post the 2-year intervention to evaluate beneficial effects to bone mineral density

    2 years

Secondary Outcomes (6)

  • Metabolomics

    2 years

  • Neurocognitive function I

    2 years

  • Neurocognitive function II

    2 years

  • Neurocognitive function III

    2 years

  • Gut microbiome

    2 years

  • +1 more secondary outcomes

Study Arms (2)

Treatment group

ACTIVE COMPARATOR

Supplementation for 2 years with one of the following treatments in capsule form: Treatment group will receive: B vitamins + vitamin D, a daily capsule containing 200 µg/day folic acid, 10 µg/day vitamin B12, 10 mg/day vitamin B6 and 5 mg/day riboflavin, and 10 µg/day vitamin D combined

Dietary Supplement: B-vitamin supplementation on bone health

Control group

PLACEBO COMPARATOR

Supplementation for 2 years with one of the following treatments in capsule form: Control group will receive: Vitamin D, a daily capsule containing 10 µg/day vitamin D

Dietary Supplement: Control group; Vitamin D, a daily capsule containing 10 µg/day vitamin D

Interventions

An intervention study to investigate the effect of B-vitamin supplementation for 2-years on bone health

Treatment group

Vitamin D, a daily capsule containing 10 µg/day vitamin D

Control group

Eligibility Criteria

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

You may qualify if:

  • years and over
  • Generally healthy, free living in the community
  • Males and females (post menopausal and not taking HRT)

You may not qualify if:

  • Currently taking a supplement containing B vitamins
  • Currently consuming \>4 portions of foods fortified with B vitamins per week
  • Currently taking drugs known to interfere with folate/ B-vitamin metabolism
  • Have a condition of the gastrointestinal system (such as coeliac disease/ chron's disease, ulcerative colitis) or liver disease (hepatitis and NAFLD)
  • Be unable to consent to participate
  • Be currently involved in another research study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University College Dublin

Dublin, Dublin 4, D4, Ireland

Location

Related Publications (1)

  • Clements M, Heffernan M, Ward M, Hoey L, Doherty LC, Hack Mendes R, Clarke MM, Hughes CF, Love I, Murphy S, McDermott E, Grehan J, McCann A, McAnena LB, Strain JJ, Brennan L, McNulty H. A 2-Year Randomized Controlled Trial With Low-Dose B-Vitamin Supplementation Shows Benefits on Bone Mineral Density in Adults With Lower B12 Status. J Bone Miner Res. 2022 Dec;37(12):2443-2455. doi: 10.1002/jbmr.4709. Epub 2022 Oct 14.

MeSH Terms

Interventions

Control GroupsVitamin D

Intervention Hierarchy (Ancestors)

Epidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethodsSecosteroidsSteroidsFused-Ring CompoundsPolycyclic Compounds

Study Officials

  • Lorraine Brennan, PhD

    University College Dublin

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
2 year randomised, placebo controlled, double blinded intervention
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Supplementation for 2 years with one of the following treatments in capsule form: 1. Active: B vitamins + vitamin D, a daily capsule containing 200 µg/day folic acid, 10 µg/day vitamin B12, 10 mg/day vitamin B6 and 5 mg/day riboflavin, and 10 µg/day vitamin D combined. 2. Control/Placebo: Vitamin D, a daily capsule containing 10 µg/day vitamin D
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

March 22, 2019

First Posted

March 27, 2019

Study Start

May 5, 2017

Primary Completion

March 31, 2022

Study Completion

May 31, 2022

Last Updated

December 8, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations