Male Reproduction COVID Sequelae Study (MARCOS).

Withdrawn

• Conditions: Infertility, Male

• Registration Number: NCT04665258
• Lead Sponsor: University of Miami

Brief Summary

The purpose of this study is to investigate the effects of COVID-19 Vaccination on semen parameters and to determine how long these possible changes may last following vaccination.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2020-12-10
• Study First Submitted QC: 2020-12-10
• Study First Posted: 2020-12-11
• Study Start: 2020-12-14
• Status Verified: 2023-11
• Primary Completion: 2023-11-28
• Study Completion: 2023-11-28
• Last Update Submitted: 2023-11-28
• Last Update Posted: 2023-12-04

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: Male
• Target Recruitment: Not specified

Inclusion Criteria

1. Receiving COVID-19 vaccines
2. Male age 18-50 years old

Exclusion Criteria

1. Adults unable to consent
2. Women
3. Prisoners
4. Men who have been receiving Testosterone replacement therapy or anabolic steroids within the last year
5. Men with a history of Azoospermia
6. Men with a genetic or other medical condition known to be associated with decreased semen parameters (i.e. Klinefelter's syndrome, Y-Chromosome Microdeletion (YCMD), post-chemotherapy treatment, etc.)
7. Positive COVID-19 test within the last 3 weeks

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Sperm concentration	up to 6 months	As measured from semen samples.
Sperm motility	up to 6 months	As measured from semen samples.