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PregnancyB-HipNCT01145573

Bone Health in Pregnancy

A study of Pregnancy, run by UCSF Benioff Children's Hospital Oakland at 1 site in United States.

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

Women between the ages of 18 and 45 are needed for a study that looks at the effect of calcium supplementation on bone health during pregnancy in black and white women. Study subjects will be divided into two groups. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
65 participants
Where
1 siteUnited States
Study dates
May 2010to Dec 2013
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 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • First trimester of pregnancy
  • Between the age of 18-45

Who cannot join

  • Smoke
  • Prepregnancy BMI >35
  • Medical condition that will affect bone
  • Takes a medication that affects bone

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Childrens Hospital Oakland

    Oakland, California, 94609

Other trials in United States

About this study

Official title: Testing the Calcium DRI During Pregnancy: A Study of Bone Health in Black and White Women

Women between the ages of 18 and 45 are needed for a study that looks at the effect of calcium supplementation on bone health during pregnancy in black and white women. Study subjects will be divided into two groups. Each group will take 2 study supplements each day, the supplement will be calcium or placebo (a pill without calcium). The study involves five visits to the Children's Hospital of Oakland Research Institute; each visit will be 1-2 hours in length. There are 3 study visits during pregnancy and 2 in the first year after delivery. At each visit you will have your blood drawn and be asked questions about what you eat and what type of activities you do. At visit 16 and 36 weeks and 4 and 12 months postpartum you will have your bone density measured. You will be paid $240 for completing the study.

Read the detailed description

Women between the ages of 18 and 45 are needed for a study that looks at the effect of calcium supplementation on bone health during pregnancy in black and white women. Study subjects will be divided into two groups. Each group will take 2 study supplements each day, the supplement will be calcium or placebo (a pill without calcium). The study involves five visits to the Children's Hospital of Oakland Research Institute; each visit will be 1-2 hours in length. There are 3 study visits during pregnancy and 2 in the first year after delivery. At each visit you will have your blood drawn and be asked questions about what you eat and what type of activities you do. At visit 16 and 36 weeks and 4 and 12 months postpartum you will have your bone density measured. You will be paid $240 for completing the study.

Conditions
Pregnancy
Being tested
Calcium or Placebo
Keywords
calcium, vitamin D, bone, pregnancy

What participants receive

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

  • Calcium or PlaceboDietary supplement

    Participants are randomized to take either 1000mg of calcium or placebo from week 16 of pregnancy until delivery.

Study groups in NCT01145573
Study groupRoleWhat they receive
PlaceboPlacebo comparatorInactive pill taken daily
Receives: Dietary Supplement: Calcium or Placebo
CalciumActive comparator1000mg of calcium taken daily
Receives: Dietary Supplement: Calcium or Placebo

What is being measured

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

  1. Peripheral cortical and trabecular bone changes during a reproductive cycle in black and white women.

    Measured: 3 years

Secondary outcomes (1)
  1. Bone markers of bone formation and resorption during pregnancy and postpartum

    Measured: 3 years

Timeline

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

  1. First posted16 Jun 2010 (estimated)
  2. Study startMay 2010
  3. Primary completionDec 2013
  4. Study completionDec 2013

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01145573
Sponsor's protocol ID
2009-65
Acronym
B-Hip
Status last verified
Sep 2020
First submitted
11 Jun 2010
Last updated
14 Sep 2020
Results posted
No
Data monitoring committee
Yes

Publications

  • Cullers A, King JC, Van Loan M, Gildengorin G, Fung EB. Effect of prenatal calcium supplementation on bone during pregnancy and 1 y postpartum. Am J Clin Nutr. 2019 Jan 1;109(1):197-206. doi: 10.1093/ajcn/nqy233.

    PubMed 30649176

Questions about this trial

What is this clinical trial studying?

A study of Pregnancy, run by UCSF Benioff Children's Hospital Oakland at 1 site in United States.

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 4 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 14 Sep 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

Peripheral cortical and trabecular bone changes during a reproductive cycle in black and white women. (time frame: 3 years). 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 NCT01145573, 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 14 Sep 2020.

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