Ignite Creation Date:
2025-12-25 @ 4:11 AM
Ignite Modification Date:
2026-03-01 @ 5:54 PM
Study NCT ID:
NCT03734120
Status:
COMPLETED
Last Update Posted:
2018-11-07
First Post:
2018-10-23
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Cryogenic Preservation of Spermatozoa
Sponsor:
University Hospital, Clermont-Ferrand
Organization:
Study Overview
Official Title:
Cryogenic Preservation of Spermatozoa : Comparative Study Between Both Dry and Liquid Phase Nitrogen Storages
Status:
COMPLETED
Status Verified Date:
2018-11
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
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.
Detailed Description:
Objective: To evaluate the effects of cryopreserved sperm in dry and liquid phase nitrogen at 3 and 6 month on sperm numeration, motility, vitality, morphology, acrosomal integrity and DNA fragmentation.
Design: Experimental study, investigator was blinded to the type of Cryopreservation.
Patient(s): Semen samples were collected from patients who came in laboratory for semen analysis
Intervention: 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.
Design: Experimental study, investigator was blinded to the type of Cryopreservation.
Patient(s): Semen samples were collected from patients who came in laboratory for semen analysis
Intervention: 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.
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: