- Conditions
- Oligospermia, Azoospermia, Nonobstructive, Infertility
- Interventions
- isotretinoin, Human chorionic gonadotrophin (hCG)
- Drug
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years to 50 Years · Male only
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
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- Conditions
- Primary Ovarian Insufficiency, Azoospermia, Oligospermia
- Interventions
- Not listed
- Lead sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- NIH
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 500 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2031
- U.S. locations
- 2
- States / cities
- Bethesda, Maryland • Rockville, Maryland
- Conditions
- Male Infertility, Nonobstructive Azoospermia, Azoospermia
- Interventions
- Platelet rich plasma
- Biological
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Azoospermia, Nonobstructive, Infertility, Male
- Interventions
- Ultrasound-guided rete testis flushing and aspiration
- Procedure
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2027
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania