Infertility Clinical Trial
Official title:
Effect of Vitamin D on Vaginal / Endometrial Biomarkers and Endometrial Receptivity in Women With Fertility Problems
NCT number | NCT04721899 |
Other study ID # | UW19-134 |
Secondary ID | |
Status | Recruiting |
Phase | |
First received | |
Last updated | |
Start date | January 15, 2021 |
Est. completion date | August 1, 2026 |
Verified date | May 2024 |
Source | The University of Hong Kong |
Contact | Jennifer KY Ko |
Phone | 22554647 |
jenko[@]hku.hk | |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This is a prospective study comparing vaginal and endometrial biomarkers and the trophoblast spheroid attachment rate in women with fertility problems before and after taking Vitamin D for 8 weeks.
Status | Recruiting |
Enrollment | 105 |
Est. completion date | August 1, 2026 |
Est. primary completion date | February 1, 2025 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years to 40 Years |
Eligibility | Inclusion Criteria: - Age of women < 40years old - Normal uterine cavity as demonstrated by pelvic scanning with or without saline infusion sonogram or hysteroscopy - Regular ovulatory cycles They will be divided into three groups: - RIF patients (n=35)- those who have failed to get pregnant after replacing four or more cleavage stage embryos or two or more blastocysts in two consecutive transfers. - RPL patients (n=35)- those who have failed in three pregnancies before 24 weeks of gestation and includes embryonic and fetal losses. - 'Infertile group'(n=35)- infertility except RIF and RPL, e.g. those seeking for preimplantation genetic testing, male factor infertility, unexplained infertility. Exclusion Criteria: - History of any medical condition or medications that may predispose to vitamin D sensitivity, altered vitamin D metabolism and/ or hypercalcemia, including active tuberculosis or current therapy for tuberculosis, sarcoidosis, history of renal/ ureteral stones, parathyroid disease, renal or liver failure or current use of anti-convulsants - Taking vitamin D supplement - Endometrial polyp or fibroid distorting the uterine cavity - Presence of hydrosalpinx not corrected surgically - Refusal to join the study • Discontinuation criteria- - If the woman becomes pregnant during the study - Pelvic inflammatory disease/ uterine perforation after endometrial biopsy - Vitamin D toxicity (hypercalcemia) - Withdrawal by patient |
Country | Name | City | State |
---|---|---|---|
Hong Kong | Queen Mary Hospital | Hong Kong |
Lead Sponsor | Collaborator |
---|---|
The University of Hong Kong |
Hong Kong,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in endometrial receptivity | Assessed by the attachment rate of trophoblast spheroid attachment assay onto the isolated endometrial epithelial cells | 8 weeks |
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