# Semen Analysis Parameters Following Pfizer's COVID-19 Vaccine

> **NCT04778033** · — · UNKNOWN · sponsor: **Sheba Medical Center** · enrollment: 75 (estimated)

## Conditions studied

- Covid19
- Fertility Issues

## Interventions

- **OTHER:** Sperm collection

## Key facts

- **NCT ID:** NCT04778033
- **Lead sponsor:** Sheba Medical Center
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-02-09
- **Primary completion:** 2021-04-10
- **Final completion:** 2021-05-01
- **Target enrollment:** 75 (ESTIMATED)
- **Last updated:** 2021-03-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04778033

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04778033, "Semen Analysis Parameters Following Pfizer's COVID-19 Vaccine". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04778033. Licensed CC0.

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