Semen Analysis Parameters Following Pfizer's COVID-19 Vaccine
The Effect of BNT162b2 mRNA COVID-19 Vaccine on Semen Analysis Parameters Among 75 Fertile Men
1 other identifier
observational
75
1 country
1
Brief Summary
In this study the investigators will explore the effect of the BNT162b2 COVID-19 Vaccine on semen analysis parameters among 75 fertile men. Fertile men will be regarded as such if they previously successfully impregnated their partners without the use of artificial reproductive technology, or men who previously had a normal sperm analysis exam by WHO criteria (2010). Those recruited will supply a single sperm sample 1-2 months following the second dose of the vaccination. In addition, the participants will fill a brief questionnaire with information regarding their medical and reproductive history. The investigators will examine the macroscopic and microscopic properties of the semen samples and compare them to the WHO semen analysis reference range in an attempt to ascertain whether the vaccine influences sperm parameters.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Feb 2021
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 8, 2021
CompletedStudy Start
First participant enrolled
February 9, 2021
CompletedFirst Posted
Study publicly available on registry
March 2, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 10, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2021
CompletedMarch 2, 2021
February 1, 2021
2 months
February 8, 2021
February 27, 2021
Conditions
Outcome Measures
Primary Outcomes (10)
Sperm Concentration (10^6/ml)
Semen concentration (10\^6/ml)
1-2 months after the second COVID-19 vaccine
Sperm Motility (%)
Sperm percentage with proper forward progression
1-2 months after the second COVID-19 vaccine
White Blood Cells (10^6/ml) in Semen
Amount of white blood cells (10\^6/ml) in semen
1-2 months after the second COVID-19 vaccine
Sperm Morphology (%)
Sperm morphology (%)
1-2 months after the second COVID-19 vaccine
Sperm Vitality (%)
Sperm vitality (%)
1-2 months after the second COVID-19 vaccine
Semen Liquefaction (normal/abnormal)
Macroscopic appearance - Semen liquefaction appearance
1-2 months after the second COVID-19 vaccine
Semen Viscosity (normal/abnormal)
Macroscopic appearance - Semen viscosity appearance
1-2 months after the second COVID-19 vaccine
Semen Color
Macroscopic appearance - Semen color appearance
1-2 months after the second COVID-19 vaccine
Semen PH
Semen PH
1-2 months after the second COVID-19 vaccine
Semen Volume (ml)
Semen Volume (ml)
1-2 months after the second COVID-19 vaccine
Study Arms (1)
Vaccinated Men
Fertile men who were vaccinated with the BNT162b2 COVID-19 Vaccine
Interventions
Those recruited will supply a single sperm sample 1-2 months following the second dose of the vaccination. The sample will be analyzed for macroscopic and microscopic features in the IVF laboratory and will be discarded immediately afterwards.
Eligibility Criteria
Fertile men 1-2 months following the second dose of BNT162b2 COVID-19 Vaccine
You may qualify if:
- Previously impregnated their partner without the use of assisted reproduce technology, or previously had a normal sperm analysis exam by WHO 2010 criteria.
- months following the second dose of BNT162b2 COVID-19 Vaccine.
You may not qualify if:
- Known abnormal semen parameters.
- Age above 45.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Sheba medical center
Ramat Gan, Israel
Biospecimen
Semen
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Gynecologist and Obstetrician
Study Record Dates
First Submitted
February 8, 2021
First Posted
March 2, 2021
Study Start
February 9, 2021
Primary Completion
April 10, 2021
Study Completion
May 1, 2021
Last Updated
March 2, 2021
Record last verified: 2021-02
Data Sharing
- IPD Sharing
- Will not share