Effect of flexible low-dose GnRH-ant protocol on in vitro fertilization outcome in patients with normal ovarian response

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000037629

Enrollment

Unknown

Registered

2020-08-29

Start date

2020-10-01

Completion date

Unknown

Last updated

2020-11-02

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

Conditions

Infertility

Interventions

Experimental group: low-dose GnRH-ant

Control group:Conventional dose GnRH-ant

Eligibility

Sex/Gender

Female

Age

20 Years to 40 Years

Inclusion criteria

Inclusion criteria: Aged 1 year; normal ovarian response, that is, the number of basal antral follicles (AFC) between 5 and 15.

Exclusion criteria

Exclusion criteria: (1) Before enrollment: couples with chromosomal abnormalities; history of oophorectomy; history of pelvic chemoradiotherapy; polycystic ovary (PCO) or polycystic ovary syndrome (PCOS); severe endometriosis; untreated hydrosalpinx; history of recurrent IVF failure; (2) After enrollment: whole embryo freezing (see in vitro fertilization procedures in the experimental protocol for the reasons); 3 days after oocyte retrieval, no transferable embryos.

Design outcomes

Primary

Measure	Time frame
Ongoing pregnancy;	—

Countries

China

Contacts

Public ContactSun Zhengao

Affiliated Hospital of Shandong University of Traditional Chinese Medicine

sunzhengao77@126.com+86 13708938621

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 9, 2026