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Graduated Embryo Score (GES) in the Fresh Cycle Predicts Outcome From Frozen Embryo Transfer (GES/FET)

This study has been completed.
Information provided by:
Sher Institute for Reproductive Medicine, Las Vegas Identifier:
First received: June 6, 2008
Last updated: June 9, 2008
Last verified: June 2008
Evaluation of embryo quality in the fresh cycle as a predictor of outcome from frozen embryo transfer.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Graduated Embryo Score (GES) Int he Fresh Cycle Predicts Outcome From Frozen Embryo Transfer

Further study details as provided by Sher Institute for Reproductive Medicine, Las Vegas:

Primary Outcome Measures:
  • On-going gestation (beyond 8 wks) [ Time Frame: Fetal heart activity at 8 weeks of gestation ]

Secondary Outcome Measures:
  • Implantation rate (gestational sacs/ embryos transferred) [ Time Frame: 8 weeks of gestation ]

Enrollment: 183
Study Start Date: January 2002
Study Completion Date: December 2007
Primary Completion Date: December 2007 (Final data collection date for primary outcome measure)
Patients with 2 or more frozen blastocyst that scored GES 70 or better in the fresh cycle.
Patients with 2 or more frozen blastocysts scoring GES <70 in the fresh cycle.

Detailed Description:
Outcomes from frozen embryo transfer reviewed based on the quality of the embryos in the ftresh cycle as assessed by the Graduatede embryo score.

Ages Eligible for Study:   21 Years to 44 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
All IVF patients at our center between 2002 and 2007 with at least 2 frozen blastocysts undergoing frozen embryo transfer.

Inclusion Criteria:

  • 2 frozen blastocysts
  Contacts and Locations
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Please refer to this study by its identifier: NCT00694434

United States, Nevada
Sher Institute for Reproductive Medicine
Las Vegas, Nevada, United States, 89118
Sponsors and Collaborators
Sher Institute for Reproductive Medicine, Las Vegas
Principal Investigator: Jeffrey D Fisch, M.D. Sher Institute
  More Information

Responsible Party: Jeffrey Fisch, M.D., Sher Institute Identifier: NCT00694434     History of Changes
Other Study ID Numbers: 1-Fisch
Study First Received: June 6, 2008
Last Updated: June 9, 2008

Keywords provided by Sher Institute for Reproductive Medicine, Las Vegas:
Frozen embryo transfer
Graduated Embryo Score

Additional relevant MeSH terms:
Genital Diseases, Male
Genital Diseases, Female processed this record on April 26, 2017