NCT02543671

Brief Summary

The primary aim of the current study was to investigate whether the consumption of vitamin D3 enriched, reduced-fat yellow cheese can counterbalance the expected decrease in serum 25-hydroxyvitamin D concentration during winter in postmenopausal women in Greece, and in what degree it can contribute as a potential food-based strategy for the prevention of vitamin D deficiency. A secondary aim was also to investigate any potential effect of the intervention in several quality of life (QoL) indices in the population of postmenopausal women under study.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2014

Shorter than P25 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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2014

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2015

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

September 3, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 7, 2015

Completed
Last Updated

September 7, 2015

Status Verified

September 1, 2015

Enrollment Period

5 months

First QC Date

September 3, 2015

Last Update Submit

September 4, 2015

Conditions

Keywords

vitamin D status25-hydroxyvitamin DcheeseRandomized controlled trialpostmenopausal womenenrichedvitamin D3

Outcome Measures

Primary Outcomes (1)

  • serum 25-hydroxyvitamin D concentration

    8 weeks

Secondary Outcomes (8)

  • physical functioning scale, Short Form 36 health survey questionnaire (SF-36)

    8 weeks

  • role limitations due to physical health scale, Short Form 36 health survey questionnaire (SF-36)

    8 weeks

  • role limitations due to emotional problems scale, Short Form 36 health survey questionnaire (SF-36)

    8 weeks

  • vitality scale, Short Form 36 health survey questionnaire (SF-36)

    8 weeks

  • emotional well-being scale, Short Form 36 health survey questionnaire (SF-36)

    8 weeks

  • +3 more secondary outcomes

Study Arms (2)

vitamin D3 enriched cheese

ACTIVE COMPARATOR

vitamin D3 enriched, reduced-fat yellow cheese

Other: vitamin D3 enriched, reduced-fat yellow cheese

plain cheese

PLACEBO COMPARATOR

plain (non-fortified) reduced-fat yellow cheese

Other: plain (non-fortified) reduced-fat yellow cheese

Interventions

60 grams of vitamin D3 enriched, reduced-fat yellow cheese provide 5.7 micrograms of vitamin D per day for 8 weeks

vitamin D3 enriched cheese

60 grams of plain (non-fortified), reduced-fat yellow cheese provide 0 micrograms of vitamin D per day for 8 weeks

plain cheese

Eligibility Criteria

Age55 Years - 75 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • subjects are eligible if they are 55-75 years of age
  • being at menopause for more than 5 years
  • they used to consume cheese daily
  • those with a Body Mass Index (BMI) range 20-33kg/m2

You may not qualify if:

  • having any disease/ pathology that interacts with vitamin D metabolism
  • taking medications that interact with vitamin D metabolism or vitamin D supplements for medical reasons (e.g. osteoporosis)
  • planned vacation to a sunny holiday destination during the intervention period
  • having a cow's milk allergy
  • having a drugs and/or alcohol abuse

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Harokopio University of Athens

Kallithea, Attica, 17671, Greece

Location

MeSH Terms

Conditions

Vitamin D Deficiency

Condition Hierarchy (Ancestors)

AvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic Diseases

Study Officials

  • Yannis Manios, Associate Professor

    Harokopio University, Athens

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

September 3, 2015

First Posted

September 7, 2015

Study Start

October 1, 2014

Primary Completion

March 1, 2015

Study Completion

June 1, 2015

Last Updated

September 7, 2015

Record last verified: 2015-09

Locations