200
Participants
Start Date
March 1, 2024
Primary Completion Date
October 1, 2025
Study Completion Date
October 1, 2026
Venous blood collection
Peripheral blood was collected on the day of embryo transfer. And if the pregnancy test was positive at 14 days after embryo transfer, peripheral blood was collected at 21 days after the transfer and every 2 weeks thereafter until 12 weeks of gestation.
RECRUITING
Peking University Third Hospital, Beijing
Peking University Third Hospital
OTHER