Prolonging the time of progesterone supplementation to improve the pregnancy outcomes of single day 6 blastocyst transfer in frozen-thawed cycles: study protocol for a randomized controlled trial

DiscussionThis is the first randomized controlled trial to compare the transfer of day 6 blastocysts on the 6th and 7th day of progesterone supplementation. The results of this study will provide evidence for whether to prolong the duration of exposure to progesterone prior to embryo transfer.Trial registrationClinicalTrials.gov, ID: NCT04938011. Registered on 19 June 2021.
Source: Trials - Category: Research Source Type: clinical trials