The clinical pregant outcome of different doses of Letrozole used for endometrium preparation in non-PCOS women: a randomized controlled trial

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR1800019884

Enrollment

Unknown

Registered

2018-12-07

Start date

2019-01-01

Completion date

Unknown

Last updated

2018-12-10

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

Conditions

infertility

Interventions

Group 2:low Letrozole group

Group 1:high dose Letrozole

Eligibility

Sex/Gender

Female

Age

20 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. Aged between 20 and 40 years old; 2. Women have at least one good quality embyro; 3. Women with regular menstrual cycles; 4. Sign informed consent

Exclusion criteria

Exclusion criteria: 1. Women who have previously been diagnosed with a uterine abnormality; 2. Women or their partners with an abnormal chromosome karyotype not including chromosome polymorphisms; 3. Women who have experienced recurrent spontaneous abortions; 4. Women with chronic medical conditions that have confirmed effects on pregnancy; 5. Women who has high risk of ovarian hyperstimulation syndrome (OHSS) during controlled ovarian hyperstimulation; 6. Women who are unable to comply with the study procedures.

Design outcomes

Primary

Measure	Time frame
live birth rate;	—

Contacts

Public ContactYun Wang

Shanghai Ninth People's Hospital

sammy20080228@icloud.com+86 021-53078108

Outcome results

None listed

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