An observational study in Infertility, sponsored by Bruce Shapiro M.D.. Completed at 1 site in United States. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-10-15.
Sponsored by Bruce Shapiro M.D. · Observational
The purpose of this study is to prospectively define a set of data suitable for developing models of pregnancy viability. Those models will be based on serum hCG concentration measured during the peri-implantation period in patients that received fresh embryo transfer and those that received transfer of frozen-thawed embryos, and to compare and contrast these models. This may reveal insights into differences between these types of IVF cycles.
The current study seeks to examine the effect of the timing of implantation (as indicated by the first increase in serum hCG level) on the viability of pregnancies and to determine if such effect of timing differs between fresh embryo transfers and frozen-thawed embryos transfers. In this case, the timing of implantation will be measured through serum hCG analysis on days 3, 4, 5, and 7 after blastocyst transfer.
2,506 studies on the registry are indexed under Infertility; 407 are open to participants now.
This study's enrollment of 451 is above the median of 200 across 714 observational studies indexed under Infertility.
Browse Infertility studies →Bruce Shapiro M.D. is the lead sponsor of 4 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
IVF patients
Exclusion Criteria:
Patients who received fresh blastocyst transfer
Patients who received transfers of frozen/thawed embryos
Ongoing pregnancy
Fetal heart motion at 10 weeks gestation.
Time frame: 10 weeks gestation
This study is completed, as verified in Oct 2012. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Bruce Shapiro M.D.