Comparison Between Three Freezing Protocols to Preserve Human Embryos
Randomized Comparison to Freeze Human Embryos by Either Vitrification or Slow Freezing Protocols
1 other identifier
interventional
584
1 country
1
Brief Summary
This randomized study compares three different freezing methods to store human in vitro fertilization (IVF) embryos: vitrification with two commercial kits or slow freezing. After information, all patients undergoing IVF treatment can be included in the study. If qualified, embryos at different developmental stages will be allocated between the three methods. At the end of the first year survival and developmental rates, and implantation and pregnancy rates will be analyzed in order to determine the best method.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Apr 2009
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2009
CompletedFirst Submitted
Initial submission to the registry
May 28, 2009
CompletedFirst Posted
Study publicly available on registry
May 29, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2011
CompletedJuly 26, 2016
July 1, 2016
6 months
May 28, 2009
July 25, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Survival embryo rate
one year
Secondary Outcomes (1)
Delivery rate
one year
Study Arms (3)
Slow Freezing
PLACEBO COMPARATORStandard freezing protocol (slow freezing) of preimplantation embryos
VIT-Irvine
EXPERIMENTALVitrification with Irvine solution (rapid freezing) of preimplantation embryos
VIT-Vitrolife
EXPERIMENTALVitrification (rapid freezing) with Vitrolife solution
Interventions
Embryos at different developmental stages will be frozen using a solution that contains propanediol and sucrose, individually placed in high security straws, cooled with a programmator and stored in liquid nitrogen.
Embryos at different developmental stages will be frozen using the vitrification solution according to the manufacturer's instructions, individually placed in high security vitrification devices and plunged directly in liquid nitrogen for storing.
Embryos at different developmental stages will be frozen using the vitrification solution according to the manufacturer's instructions, individually placed in high security vitrification devices and plunged directly in liquid nitrogen for storing.
Eligibility Criteria
You may qualify if:
- Infertility requiring IVF
You may not qualify if:
- Women's age \> 43 years
- Patients positive for hepatitis B or C
- Patients positive for HIV
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
IVF laboratory, Hospital Erasme, Route de Lennik 808
Brussels, 1070, Belgium
Related Publications (19)
Al-Hasani S, Ozmen B, Koutlaki N, Schoepper B, Diedrich K, Schultze-Mosgau A. Three years of routine vitrification of human zygotes: is it still fair to advocate slow-rate freezing? Reprod Biomed Online. 2007 Mar;14(3):288-93. doi: 10.1016/s1472-6483(10)60869-3.
PMID: 17359578BACKGROUNDBalaban B, Urman B, Ata B, Isiklar A, Larman MG, Hamilton R, Gardner DK. A randomized controlled study of human Day 3 embryo cryopreservation by slow freezing or vitrification: vitrification is associated with higher survival, metabolism and blastocyst formation. Hum Reprod. 2008 Sep;23(9):1976-82. doi: 10.1093/humrep/den222. Epub 2008 Jun 10.
PMID: 18544577BACKGROUNDDesai N, Blackmon H, Szeptycki J, Goldfarb J. Cryoloop vitrification of human day 3 cleavage-stage embryos: post-vitrification development, pregnancy outcomes and live births. Reprod Biomed Online. 2007 Feb;14(2):208-13. doi: 10.1016/s1472-6483(10)60789-4.
PMID: 17298725BACKGROUNDEscriba MJ, Zulategui JF, Galan A, Mercader A, Remohi J, de los Santos MJ. Vitrification of preimplantation genetically diagnosed human blastocysts and its contribution to the cumulative ongoing pregnancy rate per cycle by using a closed device. Fertil Steril. 2008 Apr;89(4):840-6. doi: 10.1016/j.fertnstert.2007.04.035. Epub 2007 Aug 6.
PMID: 17681342BACKGROUNDHuang CC, Lee TH, Chen SU, Chen HH, Cheng TC, Liu CH, Yang YS, Lee MS. Successful pregnancy following blastocyst cryopreservation using super-cooling ultra-rapid vitrification. Hum Reprod. 2005 Jan;20(1):122-8. doi: 10.1093/humrep/deh540. Epub 2004 Oct 7.
PMID: 15471932BACKGROUNDKasai M, Mukaida T. Cryopreservation of animal and human embryos by vitrification. Reprod Biomed Online. 2004 Aug;9(2):164-70. doi: 10.1016/s1472-6483(10)62125-6.
PMID: 15333245BACKGROUNDKattera S, Chen C. Cryopreservation of embryos by vitrification: current development. Int Surg. 2006 Sep-Oct;91(5 Suppl):S55-62.
PMID: 17436605BACKGROUNDKuwayama M, Vajta G, Ieda S, Kato O. Comparison of open and closed methods for vitrification of human embryos and the elimination of potential contamination. Reprod Biomed Online. 2005 Nov;11(5):608-14. doi: 10.1016/s1472-6483(10)61169-8.
PMID: 16409712BACKGROUNDKuwayama M. Highly efficient vitrification for cryopreservation of human oocytes and embryos: the Cryotop method. Theriogenology. 2007 Jan 1;67(1):73-80. doi: 10.1016/j.theriogenology.2006.09.014. Epub 2006 Oct 20.
PMID: 17055564BACKGROUNDLiebermann J, Nawroth F, Isachenko V, Isachenko E, Rahimi G, Tucker MJ. Potential importance of vitrification in reproductive medicine. Biol Reprod. 2002 Dec;67(6):1671-80. doi: 10.1095/biolreprod.102.006833.
PMID: 12444040BACKGROUNDLiebermann J, Dietl J, Vanderzwalmen P, Tucker MJ. Recent developments in human oocyte, embryo and blastocyst vitrification: where are we now? Reprod Biomed Online. 2003 Dec;7(6):623-33. doi: 10.1016/s1472-6483(10)62084-6.
PMID: 14748959BACKGROUNDLiebermann J, Tucker MJ. Comparison of vitrification and conventional cryopreservation of day 5 and day 6 blastocysts during clinical application. Fertil Steril. 2006 Jul;86(1):20-6. doi: 10.1016/j.fertnstert.2006.01.029. Epub 2006 Jun 8.
PMID: 16762345BACKGROUNDLoutradi KE, Kolibianakis EM, Venetis CA, Papanikolaou EG, Pados G, Bontis I, Tarlatzis BC. Cryopreservation of human embryos by vitrification or slow freezing: a systematic review and meta-analysis. Fertil Steril. 2008 Jul;90(1):186-93. doi: 10.1016/j.fertnstert.2007.06.010. Epub 2007 Nov 5.
PMID: 17980870BACKGROUNDNawroth F, Rahimi G, Isachenko E, Isachenko V, Liebermann M, Tucker MJ, Liebermann J. Cryopreservation in assisted reproductive technology: new trends. Semin Reprod Med. 2005 Nov;23(4):325-35. doi: 10.1055/s-2005-923390.
PMID: 16317621BACKGROUNDRama Raju GA, Haranath GB, Krishna KM, Prakash GJ, Madan K. Vitrification of human 8-cell embryos, a modified protocol for better pregnancy rates. Reprod Biomed Online. 2005 Oct;11(4):434-7. doi: 10.1016/s1472-6483(10)61135-2.
PMID: 16274602BACKGROUNDStehlik E, Stehlik J, Katayama KP, Kuwayama M, Jambor V, Brohammer R, Kato O. Vitrification demonstrates significant improvement versus slow freezing of human blastocysts. Reprod Biomed Online. 2005 Jul;11(1):53-7. doi: 10.1016/s1472-6483(10)61298-9.
PMID: 16102287BACKGROUNDTakahashi K, Mukaida T, Goto T, Oka C. Perinatal outcome of blastocyst transfer with vitrification using cryoloop: a 4-year follow-up study. Fertil Steril. 2005 Jul;84(1):88-92. doi: 10.1016/j.fertnstert.2004.12.051.
PMID: 16009162BACKGROUNDVajta G, Nagy ZP. Are programmable freezers still needed in the embryo laboratory? Review on vitrification. Reprod Biomed Online. 2006 Jun;12(6):779-96. doi: 10.1016/s1472-6483(10)61091-7.
PMID: 16792858BACKGROUNDYoussry M, Ozmen B, Zohni K, Diedrich K, Al-Hasani S. Current aspects of blastocyst cryopreservation. Reprod Biomed Online. 2008 Feb;16(2):311-20. doi: 10.1016/s1472-6483(10)60591-3.
PMID: 18284893BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Anne Delbaere, Ph.D.
Fertility Clinic, Hospital Erasme
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Embryologist
Study Record Dates
First Submitted
May 28, 2009
First Posted
May 29, 2009
Study Start
April 1, 2009
Primary Completion
October 1, 2009
Study Completion
May 1, 2011
Last Updated
July 26, 2016
Record last verified: 2016-07
Data Sharing
- IPD Sharing
- Will not share