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Study on the Mechanism and Early Warning Value of Lactobacillus Mediated Histone Lactylation of Decidual Macrophages in Improving Recurrent Implantation Failure

Study on the Mechanism and Early Warning Value of Lactobacillus Mediated Histone Lactylation of Decidual Macrophages in Improving Recurrent Implantation Failure

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500098609
Enrollment
Unknown
Registered
2025-03-11
Start date
2025-03-22
Completion date
Unknown
Last updated
2025-03-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Implantation Failure

Interventions

Hysteroscopy RIF group (Part One Research Group):no intervention
Hysteroscopy control group (Part One Control Group):no intervention
RIF study group (Part Two Research Group):Live Lactobacillus Capsule for Vaginal Use were administered to patients in the RIF study group
RIF control group (Part Two Control Group):According to standard medical procedures, there is no intervention

Sponsors

Peking University Shenzhen Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
25 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. This study includes subjects aged 25-40 years who underwent hysteroscopy 4-7 days after ovulation or progesterone conversion. 2. Previous embryo transfer >=3 times, and a total of more than 3 high-quality subjects who have not yet obtained pregnancy are included in the RIF study group. The control group consisted of participants who had given birth and were currently undergoing routine hysteroscopy for endometrial polyps. 3. The chromosomes of both husband and wife of the experimental subjects are normal. 4. Agree to sign the informed consent form. RIF Study Group Inclusion Criteria: 1. This study included subjects aged 25-40 years old, with >=3 previous embryo transfers, and a total of more than 3 high-quality transfers that had not yet obtained pregnancy, to be included in the RIF cohort. 2. Both husband and wife have normal chromosomes. 3. Agree to sign the informed consent form.

Exclusion criteria

Exclusion criteria: Hysteroscopic RIF Group Exclusion Criteria: 1. Low ovarian reserve, FSH>12mIU/ml or AMH12mIU/ml or AMH<=1.1ng/ml; 2. Organic lesions such as uterine malformations, intrauterine adhesions, uterine submucosal fibroids, and large intramural fibroids; 3. Ultrasound shows that there is more hydrosalpinx untreated; 4. Subjects who have undergone vaginal washing, vaginal medication or oral antibiotic therapy in the past 1 week.

Design outcomes

Primary

MeasureTime frame
clinical pregnancy rate;

Secondary

MeasureTime frame
Vaginal microbiome;lactate;short-chain fatty acids;

Countries

China

Contacts

Public ContactFu Min

Peking University Shenzhen Hospital

fumin0222@163.com+86 135 0006 2302

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026