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A cohort study on the efficacy and safety of two estradiol valerate preparations in hormone replacement therapy for frozen-thawed embryo transfer

A cohort study on the efficacy and safety of two estradiol valerate preparations in hormone replacement therapy for frozen-thawed embryo transfer

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600118453
Enrollment
Unknown
Registered
2026-02-05
Start date
2026-03-01
Completion date
Unknown
Last updated
2026-02-09

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

Conditions

infertility

Interventions

Experimental group:In the hormone replacement therapy-frozen embryo transfer (HRT-FET) protocol, domestic estradiol valerate tablets are used as estrogen supplementation.
Control group:In the hormone replacement therapy frozen-thawed embryo transfer (HRT-FET) protocol, imported estradiol valerate tablets are used as estrogen supplementation

Sponsors

Sichuan Provincial Women and Children's Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
20 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. Patients undergoing HRT-FET at the Reproductive Medicine Center of Sichuan Provincial Women and Children’s Hospital; 2. Aged 20-40 years; 3. Transferring blastocysts; 4. Voluntarily participating in the study and signing the informed consent form.

Exclusion criteria

Exclusion criteria: 1. FET using embryos derived from frozen eggs or sperm; 2. Preimplantation genetic testing (PGT) cycles; 3. Factors affecting embryo implantation, such as submucosal or intramural fibroids, adenomyosis, intrauterine adhesions, uterine malformations, or thin endometrium; 4. Severe chronic diseases of the cardiovascular, respiratory, or digestive systems, or serious endocrine or autoimmune diseases such as diabetes or systemic lupus erythematosus; 5. Participation in other drug or device clinical trials within the 3 months prior to treatment, and use of investigational drugs or devices; 6. Allergy to estradiol valerate; 7. Body mass index (BMI) =28 (obese); 8. Other medical conditions that the investigator deems may affect the assessment of this study.

Design outcomes

Primary

MeasureTime frame
Clinical pregnancy rate;

Secondary

MeasureTime frame
Sex hormone levels;Ultrasound assessment indicators of endometrial receptivity;Embryo implantation rate;Spontaneous abortion rate;Ectopic pregnancy rate;Ongoing pregnancy rate;Live birth rate;

Countries

China

Contacts

Public ContactGong Yan

Sichuan Provincial Women’s and Children’s Hospital

gongyan_496181657@qq.com+86 152 0839 3996

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 15, 2026