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Infertility, FemaleNCT03503006

Effects of Vitamin D Status on the Outcome of Ivf - Embryo Transfer

An observational study of Infertility, Female, run by Reproductive & Genetic Hospital of CITIC-Xiangya at 1 site in China.

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

At present, there is no agreement on the effect of vitamin D level in serum and follicular fluid on the outcome of IVF-ET pregnancy. Most of these studies were based on the research of total 25 (OH) D, which have ignored that the biological activity of vitamin D molecule is not total 25 (OH) D, but free vitamin D or… Read more about this study

Who is it for?
Ages 18 to 35 years, women only
Conditions the study is for
Infertility, Female
How many people
2,569 participants
Where
1 siteChina
Study dates
21 Mar 2018to 30 Jan 2020
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 18 to 35 years
  • Women only
  • No healthy volunteers
  • Adult

Study population: the study population will be selected from patients of Reproductive and Genetic Hospital of CITIC-Xiangya

Who may be able to join

  • female with only fallopian tube factor or male factor infertility,first IVF/ICSI cycle,18 years old≤age≤35 years old,take a long protocol or super-long protocol,18≤BMI≤25, menstrual regularity(periodic change < 7 days)

Who cannot join

  • Hyperprolactinemia, Thyroid dysfunction, uterine malformation ( inadequacy mediastinal uterus ≥1.0cm, Unicornate uterus, double uterus, T Angle of uterus, etc.), uterus adhesion, untreated hydrosalpinx , hysteromyoma( hysteromyoma≥2.0 cm, and/or Uterine fibroids located within the endometrium≤1cm), endometriosis, diabetes, hypertension, adrenal cortex hyperplasia, Cushing's syndrome, a pituitary amenorrhea

Trial locations and contacts

1 site in 1 country.

China1 site
  • Reproductive & Genetic Hospital of CITIC-XIANGYA

    Changsha, Hunan, 410008

Other trials in China

About this study

At present, there is no agreement on the effect of vitamin D level in serum and follicular fluid on the outcome of IVF-ET pregnancy. Most of these studies were based on the research of total 25 (OH) D, which have ignored that the biological activity of vitamin D molecule is not total 25 (OH) D, but free vitamin D or vitamin D bioavailable, and have flaws in methodology. This project intends to make a prospective cohort study with large sample, based on a complete methodology of total vitamin D and free vitamin D to measure maternal vitamin D levels in blood,to systematically study the effect of maternal vitamin D status on IVF - ET pregnancy outcome. This study is also the first to study the relationship between maternal vitamin D status and the outcome of IVF-ET pregnancy using a complete methodology.

Medical subject headings
Infertility, Female

What is being measured

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

  1. clinical pregnancy rate

    Measured: Until 28 day after embryo transferred

Timeline

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

  1. First posted19 Apr 2018
  2. Study start21 Mar 2018
  3. Primary completion30 Oct 2019
  4. Study completion30 Jan 2020

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
Prospective
Enrolment
2,569 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03503006
Sponsor's protocol ID
LCYJ-201802
Status last verified
Mar 2018
First submitted
11 Apr 2018
Last updated
23 Mar 2020
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Liu Y, Hocher JG, Ma S, Hu L, Chen H, Zhang X, Gong F, Kramer BK, Lin G, Hocher B. Pre-pregnancy LDL/HDL and total Cholesterol/HDL ratios are strong predictors of gestational diabetes mellitus in women undergoing assisted reproductive technologies. Reprod Biol Endocrinol. 2024 Dec 5;22(1):155. doi: 10.1186/s12958-024-01320-9.

    PubMed 39639281

Questions about this trial

What is this clinical trial studying?

An observational study of Infertility, Female, run by Reproductive & Genetic Hospital of CITIC-Xiangya at 1 site in China.

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 23 Mar 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 China. 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?

clinical pregnancy rate (time frame: Until 28 day after embryo transferred). 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 NCT03503006, 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 23 Mar 2020.

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