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Spots Global Cancer Trial Database for Vitamin D and Pregnancy Outcome in PCOS Patients

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Trial Identification

Brief Title: Vitamin D and Pregnancy Outcome in PCOS Patients

Official Title: Vitamin D Supplementation Prior to in Vitro Fertilization in Women With Polycystic Ovary Syndrome: a Protocol of a Multicenter Randomised Double-blind Placebo-controlled Clinical Trial

Study ID: NCT04082650

Interventions

vitamin D
Placebo

Study Description

Brief Summary: This multicenter double-blinded placebo-controlled randomised trial aims to evaluate the effectiveness of vitamin D supplementation prior to IVF on the live birth rate in women with PCOS. Women with PCOS scheduled for IVF will be enrolled. Eligible participants will be randomised 1:1 to receive oral capsules of 4000IU vitamin D per day or placebo for around 12 weeks until the day of triggering.

Detailed Description: Polycystic ovary syndrome (PCOS) is one of the leading causes of female infertility, affecting around 5% of women with a child-bearing age in China. Vitamin D insufficiency is common in women with PCOS and is associated with lower live birth rates in these women. However, evidence regarding the effectiveness of vitamin D treatment in women with PCOS is inconclusive. This multicenter double-blinded placebo-controlled randomised trial aims to evaluate the effectiveness of vitamin D supplementation prior to IVF on the live birth rate in women with PCOS. The investigators plan to enroll women with PCOS scheduled for IVF. Eligible participants will be randomised 1:1 to receive oral capsules of 4000IU vitamin D per day or placebo for around 12 weeks until the day of triggering. All IVF procedures will be carried out following a routine method in each center. Women will be followed up until six months after randomisation for those who fail to get pregnant after the completion of the first embryo transfer or delivery for those who get pregnant after the first embryo transfer. The primary outcome is live birth after the first embryo transfer. Primary analysis will be by intention-to-treat analysis. The investigators plan to recruit 860 women to demonstrate women treated with vitamin D have a higher live birth rate than those treated with placebo (48% versus 38%), accounting for 10% loss to follow-up with a significance level at 0.05 and a power of 80%.

Eligibility

Minimum Age: 20 Years

Eligible Ages: ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

Peking University Third Hospital, Beijing, Beijing, China

Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China

Contact Details

Name: Dan Zhang, M.D. Ph.D.

Affiliation: Women's Hospital School Of Medicine Zhejiang University

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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