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Vitamin D DeficiencyPCVDDPWSNCT02904720

Prevalence and Consequences of Vitamin D Deficiency in Pregnant Women in Switzerland

An observational study of Vitamin D Deficiency, run by Insel Gruppe AG, University Hospital Bern at 1 site in Switzerland.

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

The purpose of this study is to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at the investigators' clinic. Read more about this study

Who is it for?
Any age, women onlyHealthy volunteers can take part
Conditions the study is for
Vitamin D Deficiency
How many people
1,199 participants
Where
1 siteSwitzerland
Study dates
Oct 2015to Feb 2016
Phase
Observational
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 Any age
  • Women only
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: All the pregnant women attending prenatal care and giving birth at birth at our clinic

Who may be able to join

  • Pregnant women attending prenatal care at our clinic who had a vitamin D blood-testing at admission

Who cannot join

  • Pregnant women lost to follow-up, Birth outside our clinic

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Hospital Bern

    Bern, 3010

Other trials in Switzerland

About this study

The purpose of this study is to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at the investigators' clinic. The further purposes are to identify the population at risk for vitamin D deficiency and to analyse whether vitamin D deficiency is associated with pregnancy complications.

Keywords
Vitamin D; Pregnancy
Medical subject headings
Vitamin D Deficiency

What is being measured

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

  1. Prevalence of vitamin D deficiency

    Number of patients with vitamin D deficiency after testing of vitamin D blood level at admission for prenatal care in our clinic

    Measured: Between the 1th and the 36th week of pregnancy

Secondary outcomes (7)
  1. BMI as a risk factor for vitamin D deficiency

    Presence of an association between the patient's BMI and their vitamin D blood level?

    Measured: Between the 1th and the 36th week of pregnancy

  2. Ethnicity as a risk factor for vitamin D deficiency

    Presence of an association between the patient's ethnicity and their vitamin D blood level?

    Measured: Between the 1th and the 36th week of pregnancy

  3. Age as risk factor for vitamin D deficiency

    Presence of an association between the patient's age and their vitamin D blood level ?

    Measured: Between the 1th and the 36th week of pregnancy

  4. Period of the year as risk factor for vitamin D deficiency

    Presence of an association between the period of the year at the time of the blood testing and the vitamin D blood level?

    Measured: Between the 1th and the 36th week of pregnancy

  5. Smoking Status as risk factor for vitamin D deficiency

    Presence of an association between the patient's smoking status and the vitamin D blood level ?

    Measured: Between the 1th and the 36th week of pregnancy

  6. Association between vitamin D blood level and gestational diabetes mellitus

    Presence of an association between the vitamin D blood level and the occurrence of gestational diabetes mellitus?

    Measured: Between the 1th and the 36th week of pregnancy

  7. Association between vitamin D blood level and gestational hypertension and preeclampsia

    Presence of an association between the vitamin D blood level and the occurrence of gestational hypertension and preeclampsia ?

    Measured: Between the 1th and the 36th week of pregnancy

Timeline

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

  1. First posted19 Sep 2016 (estimated)
  2. Study startOct 2015
  3. Primary completionFeb 2016
  4. Study completionFeb 2016

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
1,199 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02904720
Sponsor's protocol ID
2015-00063
Other IDs
2015
Acronym
PCVDDPWS
Status last verified
Sep 2016
First submitted
8 Sep 2016
Last updated
19 Sep 2016
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Christoph P, Challande P, Raio L, Surbek D. High prevalence of severe vitamin D deficiency during the first trimester in pregnant women in Switzerland and its potential contributions to adverse outcomes in the pregnancy. Swiss Med Wkly. 2020 May 28;150:w20238. doi: 10.4414/smw.2020.20238. eCollection 2020 May 18.

    PubMed 32502277

Questions about this trial

What is this clinical trial studying?

An observational study of Vitamin D Deficiency, run by Insel Gruppe AG, University Hospital Bern at 1 site in Switzerland.

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 1 inclusion and 1 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 19 Sep 2016. 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 Switzerland. 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. 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?

Prevalence of vitamin D deficiency (time frame: Between the 1th and the 36th week of pregnancy). 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 NCT02904720, 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 19 Sep 2016.

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