Skip to content

Study on the Correlation Between BPA-Induced Regulation of Estrogen Receptors (ERs) and Polycystic Ovary Syndrome (PCOS) and Its Underlying Mechanisms

Study on the Correlation Between BPA-Induced Regulation of Estrogen Receptors (ERs) and Polycystic Ovary Syndrome (PCOS) and Its Underlying Mechanisms

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500108016
Enrollment
Unknown
Registered
2025-08-22
Start date
2024-12-01
Completion date
Unknown
Last updated
2025-08-25

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

Conditions

polycystic ovary syndrome (PCOS)

Interventions

Study Group:None
Control Group:None

Sponsors

Sichuan Maternal and Child Health Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 37 Years

Inclusion criteria

Inclusion criteria: Study Group: (1) Meet the 2003 Rotterdam diagnostic criteria for PCOS (fulfill at least two of the following): 1). Oligo-ovulation or anovulation 2). Clinical and/or biochemical signs of hyperandrogenism 3). Polycystic ovarian morphology (PCOM) on ultrasound (2) Age 20-37 years; (3) Normal semen parameters in partner (per WHO 6th edition); (4) Meet indications for IVF-assisted reproduction; (5) Normal karyotype analysis in both partners; Control Group: (1) Diagnosed with tubal obstructive infertility by hysterosalpingography (HSG) or laparoscopy; (2) Regular menstrual cycles (21-35 days); (3) Normal serum sex hormone levels (FSH<10 IU/L, LH<10 IU/L, E2 20-300 pg/mL); (4) Normal uterine/ovarian structure on ultrasound (absence of PCOM features); (5) Age 20-37 years; (6) Normal semen parameters in partner (per WHO 6th edition); (7) Meet indications for IVF-assisted reproduction; (8) Normal karyotype analysis in both partners;

Exclusion criteria

Exclusion criteria: Exclusion Criteria (Both Groups): (1)Failure to meet the aforementioned inclusion criteria; (2)Other disorders causing hyperandrogenism or ovulatory dysfunction (e.g., androgen-secreting tumors, non-classic adrenal hyperplasia); (3)Severe systemic diseases, including:Uncontrolled cardiovascular, hepatic, or renal dysfunction;Active malignancy or autoimmune disorders; (4)Unwillingness/inability to provide informed consent or comply with study procedures. (5)Comorbidities confounding assessments:Immunodeficiency disorders; Ovarian tumors or genital tract malformations; (6)Concurrent participation in other interventional trials or treatments that may interfere with study outcomes; (7)History of hypersensitivity to BPA-related compounds or multiple drug allergies (>=3 classes); (8)Recent interventions affecting endocrine/reproductive status: Hormonal medication use (contraceptives, glucocorticoids, etc.) within 6 months; Intrauterine procedures (e.g., hysteroscopy) within 3 months.

Design outcomes

Primary

MeasureTime frame
Clinical pregnancy rate;

Secondary

MeasureTime frame
Fertilized oocytes (2PN);No. of MII oocytes ;No. of available embryos of Day 3;Rate of high quality blastocysts;Pregnancy rate;Miscarriage rate;

Countries

China

Contacts

Public ContactJiuzhi Zeng

Sichuan Maternal and Child Health Hospital

zengjiuzhi9@163.com+86 189 0809 8215

Outcome results

None listed

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