# Retrieval of Sperm From Men With Azoospermia Using Ultrasound-guided Rete Testis Aspiration

> **NCT03291522** · — · ACTIVE_NOT_RECRUITING · sponsor: **University of Pittsburgh** · enrollment: 50 (estimated)

## Conditions studied

- Azoospermia, Nonobstructive
- Infertility, Male

## Interventions

- **PROCEDURE:** Ultrasound-guided rete testis flushing and aspiration

## Key facts

- **NCT ID:** NCT03291522
- **Lead sponsor:** University of Pittsburgh
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2019-05-10
- **Primary completion:** 2027-01-01
- **Final completion:** 2027-09-01
- **Target enrollment:** 50 (ESTIMATED)
- **Last updated:** 2025-12-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03291522

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03291522, "Retrieval of Sperm From Men With Azoospermia Using Ultrasound-guided Rete Testis Aspiration". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT03291522. Licensed CC0.

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