Study Stopped
Insufficient enrollment
Effect of Assisted Hatching on Vitrified Embryo Transfer Clinical Outcome
VitHatSZMC
1 other identifier
interventional
18
1 country
1
Brief Summary
The objective of study is to assess the possible impact of assisted hatching on the implantation, pregnancy rate and delivery rate after transfer of vitrified-warmed human embryos.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jun 2014
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
First Submitted
Initial submission to the registry
April 23, 2014
CompletedFirst Posted
Study publicly available on registry
April 28, 2014
CompletedStudy Start
First participant enrolled
June 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2016
CompletedApril 26, 2017
April 1, 2017
1.5 years
April 23, 2014
April 24, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
delivery rate
9 months
Secondary Outcomes (2)
implantation rate
1 month
clinical pregnancy rate
2 months
Other Outcomes (1)
multifetal pregnancy
2 months
Study Arms (2)
No Assisted Hatching
NO INTERVENTIONNo Assisted Hatching
Assisted Hatching
ACTIVE COMPARATORMechanical Assisted Hatching - artificial rupture of the embryo external glycoprotein layer (Zona Pellucida) before embryo transfer.
Interventions
The technique of assisted hatching using partial zona pellucida dissection to create an artificial opening of the zona pellucida of early cleaved embryos. While the embryo is stabilized by a holding pipette of micromanipulator, the zona pellucida is pierced with a microneedle that is pushed tangentially through the space between the zona pellucida and blastomeres until it pierces through the zona pellucida again.
Eligibility Criteria
You may qualify if:
- women age 18-42,
- cleavage-stage embryo transfer,
- less than seven IVF cycles with fresh embryo transfer,
- high quality embryos.
You may not qualify if:
- out of 18-42 y.o.
- blastocyst embryo transfer
- more or equal to seven IVF cycles with fresh embryo transfer
- low quality embryos
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Shaare Zedek Medical Center
Jerusalem, 3235, Israel
Related Publications (9)
Sagoskin AW, Levy MJ, Tucker MJ, Richter KS, Widra EA. Laser assisted hatching in good prognosis patients undergoing in vitro fertilization-embryo transfer: a randomized controlled trial. Fertil Steril. 2007 Feb;87(2):283-7. doi: 10.1016/j.fertnstert.2006.07.1498. Epub 2006 Nov 13.
PMID: 17094975BACKGROUNDFang C, Li T, Miao BY, Zhuang GL, Zhou C. Mechanically expanding the zona pellucida of human frozen thawed embryos: a new method of assisted hatching. Fertil Steril. 2010 Sep;94(4):1302-1307. doi: 10.1016/j.fertnstert.2009.08.014. Epub 2009 Sep 26.
PMID: 19782973BACKGROUNDValojerdi MR, Eftekhari-Yazdi P, Karimian L, Ashtiani SK. Effect of laser zona pellucida opening on clinical outcome of assisted reproduction technology in patients with advanced female age, recurrent implantation failure, or frozen-thawed embryos. Fertil Steril. 2008 Jul;90(1):84-91. doi: 10.1016/j.fertnstert.2007.06.005. Epub 2007 Sep 24.
PMID: 17889864BACKGROUNDNg EH, Naveed F, Lau EY, Yeung WS, Chan CC, Tang OS, Ho PC. A randomized double-blind controlled study of the efficacy of laser-assisted hatching on implantation and pregnancy rates of frozen-thawed embryo transfer at the cleavage stage. Hum Reprod. 2005 Apr;20(4):979-85. doi: 10.1093/humrep/deh724. Epub 2005 Jan 21.
PMID: 15665025BACKGROUNDMartins WP, Rocha IA, Ferriani RA, Nastri CO. Assisted hatching of human embryos: a systematic review and meta-analysis of randomized controlled trials. Hum Reprod Update. 2011 Jul-Aug;17(4):438-53. doi: 10.1093/humupd/dmr012. Epub 2011 Apr 7.
PMID: 21474527BACKGROUNDValojerdi MR, Eftekhari-Yazdi P, Karimian L, Hassani F, Movaghar B. Effect of laser zona thinning on vitrified-warmed embryo transfer at the cleavage stage: a prospective, randomized study. Reprod Biomed Online. 2010 Feb;20(2):234-42. doi: 10.1016/j.rbmo.2009.11.002. Epub 2009 Nov 18.
PMID: 20113961BACKGROUNDCarney SK, Das S, Blake D, Farquhar C, Seif MM, Nelson L. Assisted hatching on assisted conception (in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI). Cochrane Database Syst Rev. 2012 Dec 12;12(12):CD001894. doi: 10.1002/14651858.CD001894.pub5.
PMID: 23235584BACKGROUNDGabrielsen A, Agerholm I, Toft B, Hald F, Petersen K, Aagaard J, Feldinger B, Lindenberg S, Fedder J. Assisted hatching improves implantation rates on cryopreserved-thawed embryos. A randomized prospective study. Hum Reprod. 2004 Oct;19(10):2258-62. doi: 10.1093/humrep/deh434. Epub 2004 Aug 19.
PMID: 15319388BACKGROUNDWan CY, Song C, Diao LH, Li GG, Bao ZJ, Hu XD, Zhang HZ, Zeng Y. Laser-assisted hatching improves clinical outcomes of vitrified-warmed blastocysts developed from low-grade cleavage-stage embryos: a prospective randomized study. Reprod Biomed Online. 2014 May;28(5):582-9. doi: 10.1016/j.rbmo.2014.01.006. Epub 2014 Jan 27.
PMID: 24631166BACKGROUND
Study Officials
- PRINCIPAL INVESTIGATOR
Alexander Volodarsky-Perel, MD
Shaare Zedek Medical Center, Jerusalem, Israel.
- STUDY CHAIR
Avi Tsafrir, MD
Shaare Zedek Medical Center, Jerusalem, Israel
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD
Study Record Dates
First Submitted
April 23, 2014
First Posted
April 28, 2014
Study Start
June 1, 2014
Primary Completion
December 1, 2015
Study Completion
June 1, 2016
Last Updated
April 26, 2017
Record last verified: 2017-04