Evaluation of DNA damage in original sperm and sperm selected by each sperm preparation method

Evaluation of DNA damage in original sperm and sperm selected by each sperm preparation method - Evaluation of DNA damage in original sperm and sperm selected by each sperm preparation method

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000040355

Enrollment

100

Registered

2020-05-11

Start date

2020-04-13

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Male infertility in general

Interventions

None listed

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Age of 20 over Patients with written informed consent to participate in the study

Exclusion criteria

Exclusion criteria: Waste sample with total sperm concentration of 1 million / mL or less Discarded specimens with original semen motility of 10% Patients who the investigator / co-investigator determined to be inappropriate for inclusion in the study

Design outcomes

Primary

Measure	Time frame
SDF values before and after each sperm preparation method	—

Secondary

Measure	Time frame
Total sperm concentration, motility, malformation rate, Zn + value of sperm before and after various sperm adjustments	—

Countries

Japan

Contacts

Public ContactHiroki Takeuchi

Mie Univercity Department Obstetrics and Gynecology, Graduate School of Medicine

fertility-repro@clin.medic.mie-u.ac.jp059-232-1111

Outcome results