Effect of Consumption of Yogurt Fortified in Calcium and Vit. D on Circulating Levels of 25OHD in Postmenopausal Women
Effect of the Consumption of Yogurt Fortified in Calcium and Vitamin D on the Circulating Levels of 25OHD in Postmenopausal Women
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
The active form of vitamin D is produced by skin when it is exposed to ultraviolet-B (UVB) rays. However, because of our sedentary lifestyle and to the low sun exposure during winter, the vitamin D status is most frequently deficient. Hence the consumption of enriched food could be an efficient strategy to improve vitamin D status.
The current recommendation for vitamin D intake is 20 µg per day for adults (19-50 yo) and between 25 and 37.5 µg per day for people over 50 years old according to the French National Medicine Academy. However, the recommended daily allowance (RDA) in France for vitamin D is limited to 5 µg corresponding to the maximum enrichment allowed in a food product. The current study is designed to evaluate if a daily consumption of two CALIN+ yogurts enriched with 5µg of vitamin D is sufficient to improve the vitamin D status in postmenopausal women.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Gières, France, 38610
- Eurofins Optimed
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Female subject, aged between 55 and 75 years inclusive.
- Menopausal female subject for more than 5 years.
- Non smoker or smoker less than 5 cigarettes a day
- Body Mass Index (BMI) between 18 and 28 kg/m² inclusive.
- Subject with a serum 25-hydroxyvitamin D2 + D3 between 10 and 30 ng/mL corresponding to a vitamin D insufficiency.
- Subject with a Mini Nutritional Assessment (MNA) > 20.
- Certified as healthy by a comprehensive clinical assessment (detailed medical history and complete physical examination).
Normal blood pressure (BP) and heart rate (HR) at the screening visit after 10 minutes in supine position:
- 95 mmHg ≤ systolic blood pressure (SBP) ≤ 160 mmHg,
- 50 mmHg ≤ diastolic blood pressure (DBP) ≤ 95 mmHg,
- 40 bpm ≤ HR (heart rate) ≤ 80 bpm.
- Subject with normal dietary habits (no vegetarian, lactose intolerant, gluten-free subject).
- Having given a written informed consent prior to selection.
- Covered by Health Insurance System and / or in compliance with the recommendations of National Law in force relating to biomedical research.
Exclusion Criteria:
- Subject who have taken any form of vitamin D supplementation in the 6 months preceding the study, including through fortified food (milk, dairy products, oil and tofu) or food supplements.
- Subject who consumed more than 3 dairy products per day.
- Functional impotence.
- Concomitant bone disease or affecting mineral metabolism, in whatever form.
- History of bone fracture in the previous year.
- Presence of a primary hyperparathyroidism, chronic gastrointestinal disease or patent hepatic and/or renal impairment or a progressive severe disease.
- Type 1 diabetic subject.
- Subject with eating disorder.
- Subject with a treatment which can interfere with the study purpose at the moment of recruitment or 6 months before (see section 5.6)
- Significant allergies or food intolerance.
- Subject who cannot be contacted in case of emergency.
- History or presence of drug or alcohol abuse (alcohol consumption > 5 glasses / day).
- Medical and surgical history which, in the judgment of the Investigator, is not compatible with this study.
- Subject who, in the judgment of the Investigator, is likely to be non-compliant or uncooperative during the study, or unable to cooperate because of a language problem, or has poor mental development.
- Blood donation within two months before the study beginning.
- Subject in the exclusion period of a previous study or subject who refuse to be on the "Fichier National des Volontaires Sains".
- Subject who refuse to sign the Informed Consent Form.
- Participation to another study within 3 months prior the study beginning.
- Subject under administrative or legal supervision.
- Subject who are deprived of their liberty by judicial of administration decision.
- Subject who would receive more than 4500 euros as indemnities for his participation in biomedical research within the 12 last months, including the indemnities for the present study.
Study Plan
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Group A: 2 yogurts
consumption of 2 CALIN+ pots per day during 16 weeks and follow up without product intake during 8 weeks.
|
Consumption of 2 CALIN+ pots per day during 16 weeks and follow up without product intake during 8 weeks.
Consumption of 1 CALIN+ pot per day during 16 weeks and follow up without product intake during 8 weeks.
|
|
Experimental: Group B: 1 yogurt
consumption of 1 CALIN+ pot per day during 16 weeks and follow up without product during 8 weeks.
|
Consumption of 2 CALIN+ pots per day during 16 weeks and follow up without product intake during 8 weeks.
Consumption of 1 CALIN+ pot per day during 16 weeks and follow up without product intake during 8 weeks.
|
|
No Intervention: Group C: No yogurt
no changes in dietary habits during 24 weeks.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Change of serum 25OHD (D2 + D3) concentration over the 16 weeks
Time Frame: serum 25OHD (D2 + D3) concentration will be evaluated at 4, 8, 12 and 16 weeks
|
serum 25OHD (D2 + D3) concentration will be evaluated at 4, 8, 12 and 16 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Serum ParaThyroid Hormone (PTH) level
Time Frame: Evolution after 16 weeks consumption period
|
Serum (ParaThyroid Hormone) PTH level
|
Evolution after 16 weeks consumption period
|
|
Serum calcium level
Time Frame: Evolution after 16 weeks consumption period
|
Serum calcium level
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Evolution after 16 weeks consumption period
|
|
Serum 25OHD (D2 + D3) level
Time Frame: Evolution after 16 weeks consumption period
|
Serum 25OHD (D2 + D3) level
|
Evolution after 16 weeks consumption period
|
|
Diastolic / systolic blood pressures (mm/Hg)
Time Frame: Evolution after 16 weeks consumption period
|
Diastolic / systolic blood pressures
|
Evolution after 16 weeks consumption period
|
|
Weight (kg)
Time Frame: Evolution after 16 weeks consumption period
|
Weight (kg)
|
Evolution after 16 weeks consumption period
|
|
Waist circumference (cm)
Time Frame: Evolution after 16 weeks consumption period
|
Waist circumference (com)
|
Evolution after 16 weeks consumption period
|
|
Rate constant
Time Frame: over two months
|
Rate constant
|
over two months
|
|
Serum 25OHD (D2 + D3) level
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Serum 25OHD (D2 + D3) level
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Serum ParaThyroid Hormone (PTH) level
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Serum ParaThyroid Hormone (PTH) level
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Serum calcium level
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Serum calcium level
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Diastolic/systolic blood pressures (mm/Hg)
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Diastolic/systolic blood pressures (mm/Hg)
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Weight (kg)
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Weight (kg)
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Waist circumference (cm)
Time Frame: Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
Waist circumference (cm)
|
Evolution over 8 weeks consumption period for women included in study during winter (before March 1, 2015)
|
|
Serum levels of 25OHD (D2 + D3),
Time Frame: Evolution over the 2 months follow up period
|
Serum levels of 25OHD (D2 + D3),
|
Evolution over the 2 months follow up period
|
|
Serum ParaThyroid Hormone (PTH) level
Time Frame: Evolution over the 2 months follow up period
|
Serum ParaThyroid Hormone (PTH) level
|
Evolution over the 2 months follow up period
|
|
Assessment of sun exposure and dietary vitamin D intake using the Garabedian questionnaire
Time Frame: 4 months and 6 months
|
Assessment of sun exposure and dietary vitamin D intake using the Garabedian questionnaire
|
4 months and 6 months
|
|
Assessment of calcium intake using a simplified calcium questionnaire
Time Frame: over the 16-week consumption period and over the first 8 weeks consumption for women included in the study during the winter season, i.e. before March 1, 2015.
|
Assessment of calcium intake using a simplified calcium questionnaire
|
over the 16-week consumption period and over the first 8 weeks consumption for women included in the study during the winter season, i.e. before March 1, 2015.
|
|
Compliance of CALIN+ consumption reported in diary
Time Frame: up to 20 weeks
|
Number of consumed yogurt per day
|
up to 20 weeks
|
|
Acceptability of CALIN+ consumption by questionnaire
Time Frame: up to 20 weeks
|
Change from baseline in acceptability score (0: do not agree at all; 10: agree completely)
|
up to 20 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CATWIN2107
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