跳至主要内容
临床试验/CTRI/2025/10/096015
CTRI/2025/10/096015尚未招募不适用

Impact of Probiotic supplementation on endometrial microbiome in unexplained infertility

Aashima Atrey1 个研究点 分布在 1 个国家目标入组 40 人开始时间: 2025年11月1日最近更新:

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
40
试验地点
1
主要终点
The proportion of woman with lactobacillus crispatus dominant endometrium versus non-dominant endometrium before and after 3 months of probiotic/placebo supplementation

研究概览

简要总结

Rationale

Unexplained infertility, accounting for nearly 15-30% of infertility cases, lacks an identifiable cause despite normal routine investigations. Emerging evidence highlights the role of the endometrial microbiome, particularly the predominance of Lactobacillus crispatus, in successful implantation and pregnancy. Dysbiosis, characterized by a reduction in Lactobacillus dominance, is associated with poor reproductive outcomes. Probiotic supplementation, especially oral probiotics containing L. crispatus, has shown promise in restoring microbial balance and potentially improving pregnancy outcomes. However, research evaluating its direct impact on the endometrial microbiome in unexplained infertility remains limited. This study aims to bridge that gap by investigating whether probiotic supplementation can favourably modify the endometrial microbial environment and enhance fertility outcomes.

The Mechanism of Action - Orally administered probiotics (Lactobacillus crispatus) migrate from intestine to the anus and finally to the vagina. This mechanism seems to combine mucosa-adhesive features of Lactobacilli and chemotactic factors that guide their migration towards the vaginal mucosa (Reid, 2008; Borges et al, 2014).

Orally consumed probiotics have shown beneficial effects in studies investigating Bacterial Vaginosis (reduced U gent score) and Bacterial Vaginosis associated symptoms in comparison to both placebo and conventional antibiotic treatment and prolonged remission in recurrent BV as adjunct to conventional antibiotic therapy. Vaginal colonization by orally consumed probiotics has been reported both with strain-leve detection and as elevation of the supplemented species. Commensal bacterial in vagina represents one of the first lines of defence against vaginal infection. Lactobacillus crispatus play important roles in this defence, thus regulating the vaginal immune system. In the vaginal tract probiotics are considered to promote antimicrobial activity by reducing vaginal pay via lactic acid production, producing bacteriocins

研究设计

研究类型
Interventional
分配方式
Coin toss, Lottery, toss of dice, shuffling cards etc
盲法
Participant and Investigator Blinded

入排标准

年龄范围
21.00 Year(s) 至 35.00 Year(s)(—)
性别
All

入选标准

  • Women with normal ovulating cycles, normal uterine cavity, and at least unilateral patent tube Men with normal HSA.

排除标准

  • Couples with HIV hepatitis B, hepatitis and hepatitis C Woman with PID Couples with systemic disease like diabetes, hypertension and tuberculosis.

结局指标

主要结局

The proportion of woman with lactobacillus crispatus dominant endometrium versus non-dominant endometrium before and after 3 months of probiotic/placebo supplementation

时间窗: The proportion of woman with lactobacillus crispatus dominant endometrium versus non-dominant endometrium before and after 3 months of probiotic/placebo supplementation

次要结局

  • 1. The number of women with positive UPT after a missed period in each group(2. Number of women with confirmed card activity 6 to 7 weeks of gestation in each group.)

研究者

发起方
Aashima Atrey
申办方类型
Other [self]
责任方
Principal Investigator
主要研究者

Aashima Atrey

Guru teg Bahadur hospital Dilshad garden, shahdara Delhi

研究点 (1)

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