ARTARTNCT03804294
Effect of Vitamin D on Outcome of Assisted Reproductive Technology(ART);
An observational study of ART, run by Peking University Third Hospital at 1 site in China.
Trial summary
Vitamin D has many biological functions. Vitamin D receptors are widely distributed in the male and female reproductive system. Animal experiments have shown that vitamin D deficiency can affect hormone synthesis and gamete formation, reduce sperm motility, and may be related to diseases such as PCOS and… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- ART
- How many people
- 4,000 participants
- Where
- 1 siteChina
- Study dates
- 28 Nov 2018to 1 Jul 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: infertile couples
Who may be able to join
- infertile couples who undergo their first IVF/ICSI and IUI cycle at Reproductive Medicine Center of Peking University Third Hospital.
Who cannot join
- refusing to be recruited.
Trial locations and contacts
1 site in 1 country.
China1 site, 1 recruiting
- Recruiting
Peking University Third Hospital
Beijing, Beijing Municipality, 100091
XU ZHI, 01082266757, zhixujp@163.com
About this study
Official title: Effect of Vitamin D on Outcome of Assisted Reproductive Technology(ART)
Vitamin D has many biological functions. Vitamin D receptors are widely distributed in the male and female reproductive system. Animal experiments have shown that vitamin D deficiency can affect hormone synthesis and gamete formation, reduce sperm motility, and may be related to diseases such as PCOS and endometriosis. Population studies suggest that vitamin D may be related to androgen levels and sperm quality, but whether vitamin D affects the outcome of assisted reproduction is controversial and inconclusive. This study intends to explore whether vitamin D affects the outcome of assisted reproduction through a large sample cohort study.
Read the detailed description
Vitamin D plays an important role in reproduction, while there is high prevalence of vitamin D deficiency. Serum 25(OH)D was categorized according to clinically accepted ranges for vitamin D deficiency (<20 ng/mL), insufficiency (20-30 ng/mL), and replete (>30 ng/mL).
This is a retrospective cohort study of about 2000 infertile couples who undergo their first IVF/ICSI and IUI cycle at Reproductive Medicine Center of Peking University Third Hospital. Patients will be excluded if they refuse to be recruited. Serum samples are collected the day when patients first time to Reproductive Medicine Center and were stored at -20℃ until assayed. Life style of patients is collected by questionair. Vitamin D status is measured by assessing circulating levels of 25(OH)D in frozen, never previously thawed serum samples using radioimmunoassay.
The investigators will comapere the ART outcomes in different groups according to serum 25(OH)D status.
In female, the primary outcome is clinical pregnancy rates defined as the presence of an intrauterinesac with an embryonic pole demonstrating cardiacactivity at 7 weeks of gestation. Secondary outcomes are quality of embryo, positive hCG rates and live birth rates.
In male, the primary outcome is semen quality, such as semen volume, sperm concentration, sperm motility, morphologically normal percent and progressive motile spermatozoa percent. Secondary outcomes are clinical pregnancy rates and live birth rates.
- Conditions
- ART
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| vitamin D-ART | Infertile couples who undergo their first IVF/ICSI and IUI cycle in Reproductive Medicin Center of Peking university Third Hosiptal. |
What is being measured
The primary outcome is the main question the study is designed to answer.
clinical pregnancy rates
Time Frame:
the presence of an intrauterinesac with an embryonic pole demonstrating cardiacactivity
Measured: 12 weeks after transplantation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Jan 2019
- Study start28 Nov 2018
- Primary completion1 Dec 2019 (estimated)
- Study completion1 Jul 2020 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for ARTStudies of the same condition, open and under way.
- More trials run by Peking University Third HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 4,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Peking University Third Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Zhi Xu, Peking University Third Hospital
- Investigators
- XU ZHI, Study chair, Peking University Third Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03804294
- Sponsor's protocol ID
- Vitamin D and ART
- Acronym
- ART
- Status last verified
- Jan 2019
- First submitted
- 11 Jan 2019
- Last updated
- 17 Jan 2019
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Chen Y, Liu D, Zeng L, Xu H, Jiang H, Yang R, Wang H, Yan L, Li R, Qiao J, Zhi X. Effect of serum 25-hydroxyvitamin D levels on sperm quality and assisted reproductive technology outcomes for men of infertile Chinese couples. Andrology. 2020 Sep;8(5):1277-1286. doi: 10.1111/andr.12818. Epub 2020 Jun 3.
PubMed 32412142
Study at a glance
From the registry record, last updated by the sponsor on 17 Jan 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Vitamin D on Outcome of Assisted Reproductive Technology(ART)
- ClinicalTrials.gov ID
- NCT03804294
- Acronym / sponsor ID
- ART / Vitamin D and ART
- Conditions
- ART
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 4,000 participants (estimated)
- Lead sponsor
- Peking University Third HospitalUniversity, hospital or other
- Study start
- 28 Nov 2018 (actual)
- Primary completion
- 1 Dec 2019 (estimated)
- Study completion
- 1 Jul 2020 (estimated)
- First posted
- 15 Jan 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Vitamin D has many biological functions. Vitamin D receptors are widely distributed in the male and female reproductive system. Animal experiments have shown that vitamin D deficiency can affect hormone synthesis and gamete formation, reduce sperm motility, and may be related to diseases such as PCOS and endometriosis. Population studies suggest that vitamin D may be related to androgen levels and sperm quality, but whether vitamin D affects the outcome of assisted reproduction is controversial and inconclusive. This study intends to explore whether vitamin D affects the outcome of assisted reproduction through a large sample cohort study.
Detailed description
Vitamin D plays an important role in reproduction, while there is high prevalence of vitamin D deficiency. Serum 25(OH)D was categorized according to clinically accepted ranges for vitamin D deficiency (<20 ng/mL), insufficiency (20-30 ng/mL), and replete (>30 ng/mL).
This is a retrospective cohort study of about 2000 infertile couples who undergo their first IVF/ICSI and IUI cycle at Reproductive Medicine Center of Peking University Third Hospital. Patients will be excluded if they refuse to be recruited. Serum samples are collected the day when patients first time to Reproductive Medicine Center and were stored at -20℃ until assayed. Life style of patients is collected by questionair. Vitamin D status is measured by assessing circulating levels of 25(OH)D in frozen, never previously thawed serum samples using radioimmunoassay.
The investigators will comapere the ART outcomes in different groups according to serum 25(OH)D status.
In female, the primary outcome is clinical pregnancy rates defined as the presence of an intrauterinesac with an embryonic pole demonstrating cardiacactivity at 7 weeks of gestation. Secondary outcomes are quality of embryo, positive hCG rates and live birth rates.
In male, the primary outcome is semen quality, such as semen volume, sperm concentration, sperm motility, morphologically normal percent and progressive motile spermatozoa percent. Secondary outcomes are clinical pregnancy rates and live birth rates.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| vitamin D-ART | – | –Infertile couples who undergo their first IVF/ICSI and IUI cycle in Reproductive Medicin Center of Peking university Third Hosiptal. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- infertile couples
Key inclusion criteria (1 listed)
- infertile couples who undergo their first IVF/ICSI and IUI cycle at Reproductive Medicine Center of Peking University Third Hospital.
Key exclusion criteria (1 listed)
- refusing to be recruited.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
clinical pregnancy rates
Time frame: 12 weeks after transplantation
Time Frame: the presence of an intrauterinesac with an embryonic pole demonstrating cardiacactivity
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Jan 2019.
- Derived from this study: PubMed 32412142Chen Y, Liu D, Zeng L, Xu H, Jiang H, Yang R, Wang H, Yan L, Li R, Qiao J, Zhi X. Effect of serum 25-hydroxyvitamin D levels on sperm quality and assisted reproductive technology outcomes for men of infertile Chinese couples. Andrology. 2020 Sep;8(5):1277-1286. doi: 10.1111/andr.12818. Epub 2020 Jun 3.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
XU ZHI study chair
Peking University Third Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of ART, run by Peking University Third Hospital 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: status not confirmed, as of the sponsor's last update on 17 Jan 2019. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact XU ZHI, doctor (01082266757 ext. 01082266757, zhixujp@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
clinical pregnancy rates (time frame: 12 weeks after transplantation). 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 NCT03804294, 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 17 Jan 2019; AzTrials last refreshed its copy on 7 Nov 2026.