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OsteoporosisNCT03420716

Symbiotic Yogurt, Calcium Absorption and Bone Health in Young Adult Women

A study testing yogurt in people with Osteoporosis, run by Universidad de la Republica.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Prebiotics have been linked to increased calcium absorption in animal and human studies (particularly in adolescents and in premenopausal women). Similarly, probiotics have been found to benefit calcium homeostasis in pregnant women, and to promote bio-mineralization in animal models. Read more about this study

Who is it for?
Ages 18 to 35 years, women onlyHealthy volunteers can take part
Conditions the study is for
Osteoporosis
What is being tested?
yogurt
Could I receive a placebo?
No, everyone receives an active treatment
How many people
54 participants
Where
No sites listed yet
Study dates
Sep 2014to Dec 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 35 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • ages 18 to 35 years
  • generally healthy

Who cannot join

  • pregnancy/lactation
  • BMI <18,5 kg/m2
  • BMI> 29 kg/m2
  • metabolic disorders, bone, liver or kidney disease that may affect calcium metabolism
  • smoking

About this study

Official title: Effect of Regular Consumption of a Symbiotic Yogurt on Calcium Absorption and Bone Health in Young Adult Women

Prebiotics have been linked to increased calcium absorption in animal and human studies (particularly in adolescents and in premenopausal women). Similarly, probiotics have been found to benefit calcium homeostasis in pregnant women, and to promote bio-mineralization in animal models. The effect of symbiotic on calcium absorption has been tested in rats, but not in human studies. The primary objective of this study is to investigate the effect of daily consumption of a functional symbiotic yogurt containing inulin and Lactobacillus rhamnosus compared to a control yogurt, on calcium absorption in young adult women. A secondary objective is to relate changes in calcium absorption following yogurt consumption, with calcium metabolism, vitamin D status, bone mass, calcium intake and overall composition of habitual diet.

Read the detailed description

A potential strategy to reduce the risk of osteoporosis later in life is to promote optimal bone mass during early adulthood by including in the diet functional foods that maximize the efficiency of calcium absorption. This approach is specially important in women because of their greater risk for osteoporosis than men. In this study, we hypothesized that the daily consumption of a yogurt containing inulin and Lactobacillus rhamnosus (symbiotic yogurt) increases the efficiency of calcium absorption in young adult women when compared to daily consumption of a yogurt of similar composition but without prebiotic or probiotic (control yogurt). Subjects in this study will be randomly assigned to consume daily the symbiotic yogurt or the control yogurt during two 3-week periods with a wash-out period of 3-weeks, in a cross-over design. Calcium absorption will be measured by stable calcium isotope methodology. Bone mass (BMD, BMC) will be measured by dual-Y ray absorptiometry. Serum intact parathyroid hormone, 25-hydroxyvitamin D and dietary intake will be measured by conventional methods.

Conditions
Osteoporosis
Being tested
yogurt
Keywords
functional foods, dairy foods, calcium absorption, prebiotics and probiotics, young women, bone health
Medical subject headings
Osteoporosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • yogurtDietary supplement

Study groups in NCT03420716
Study groupRoleWhat they receive
functional yogurtExperimentalParticipants are given the symbiotic yogurt daily (180 ml)
Receives: Dietary Supplement: yogurt
control yogurtExperimentalParticipants are given the control yogurt daily (180 ml)
Receives: Dietary Supplement: yogurt

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in calcium absorption

    Fractional calcium absorption measured with stable isotopes

    Measured: Day 21 and Day 63

Secondary outcomes (3)
  1. Serum 25(OH) vitamin D

    Serum 25 (OH) vitamin D values expressed in nmol/liter

    Measured: Day 1

  2. Bone mineral content and bone mineral density

    Bone mineral content and bone mineral density values expressed as Z scores.

    Measured: Day 1

  3. Dietary calcium intake

    Values expressed in mg/d

    Measured: Day 1

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Feb 2018
  2. Study startSep 2014
  3. Primary completionDec 2015
  4. Study completionDec 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Model description
3 weeks on symbiotic yogurt or control yogurt, with a 3 week wash out period in between. Type of yougurt consumed first is randomized.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
54 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03420716
Sponsor's protocol ID
URepublica 01
Status last verified
Feb 2018
First submitted
12 Jan 2018
Last updated
5 Feb 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Cornes R, Sintes C, Pena A, Albin S, O'Brien KO, Abrams SA, Donangelo CM. Daily Intake of a Functional Synbiotic Yogurt Increases Calcium Absorption in Young Adult Women. J Nutr. 2022 Jul 6;152(7):1647-1654. doi: 10.1093/jn/nxac088.

    PubMed 35411924

Questions about this trial

What is this clinical trial studying?

A study testing yogurt in people with Osteoporosis, run by Universidad de la Republica.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in calcium absorption (time frame: Day 21 and Day 63). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03420716, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Feb 2018.

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