NCT03734120|Completed
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Sponsor study identifier
observational
52
1 country
1
Study Start
June 1, 2012
Actual (reported)Primary Completion
August 1, 2012
Actual (reported)Study Completion
August 1, 2013
Actual (reported)The reference technique for the conservation of gametes is storage in liquid nitrogen but new vats of nitrogen vapor (storage over liquid nitrogen) or in dry phase (storage in an insulated compartment of liquid nitrogen in a tank Liquid nitrogen) also allow the storage of flakes. The purpose of this work is to evaluate the dry-phase cryopreservation technique of liquid nitrogen compared with liquid-phase storage, depending on the duration of cryopreservation.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
August 1, 2013
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
June 1, 2012
Actual (reported)August 1, 2012
Actual (reported)August 1, 2013
Actual (reported)October 23, 2018
Actual (reported)November 7, 2018
Actual (reported)Sperm DNA integrity
the spermatic DNA integrity can be quantified by TUNEL method. The result will be expressed as a percentage of fragmented DNA
at 3 months
Sperm DNA integrity
the spermatic DNA integrity can be quantified by TUNEL method. The result will be expressed as a percentage of fragmented DNA
at 6 months
Sperm parameter post cryopreservation
at 3 and 6 months
Lab parameter post cryopreservation
at 3 and 6 months
Spermatic DNA Compaction
at 3 and 6 months
Acrosomal integrity
at 3 and 6 months
men undergoing routine semen analysis for infertility
Samples were frozen with a programmable freezing unit. Each semen sample was divided into two aliquots. One aliquot was plunged into liquid nitrogen and the other was stored in dry-phase nitrogen for 3 or 6 month. Thawing was performed at room temperature
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Men undergoing routine semen analysis for infertility for reproductive medicine of university hospital in Clermont-Ferrand
Chu Clermont-Ferrand
Clermont-Ferrand, 63003, France
Florence BRUGNON
University Hospital, Clermont-Ferrand
52 participants (actual enrollment reported by the registry).
First Submitted
October 23, 2018
First Posted
November 7, 2018
Study Start
June 1, 2012
Actual (reported)Natural Cycle Versus Stimulated Cycle Before Frozen Embryo Transfer
Contact the study team to confirm eligibility.
Primary Completion
August 1, 2012
Actual (reported)Study Completion
August 1, 2013
Actual (reported)Last Updated
November 7, 2018
Record last verified: 2018-11
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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