Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jul 21, 2026, 5:35 PM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
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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
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