900
Participants
Start Date
March 1, 2018
Primary Completion Date
April 30, 2022
Study Completion Date
April 30, 2023
Letrozole
Daily 150-300 IU human menopausal gonadotrophin (HMG) / Follicle stimulating hormone (FSH) from cycle day 2-4 (at least 5 days after stopping the oral contraceptive pill) and co-treatment with letrozole 2.5 mg daily from stimulation day 5 until the day before hCG administration. GnRH antagonist (cetrotide or orgalutran) 0.25 mg daily from stimulation day 5 until the day of hCG administration.
Peking University Third Hospital, Beijing
Department of Obstetrics and Gynaecology, Hong Kong
Peking University Third Hospital
OTHER
The University of Hong Kong
OTHER