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Male Infertility clinical trials recruiting in the U.S.

7 studies for Male Infertility are recruiting participants at sites across the United States.

Infertility is when a woman can't get pregnant after a year or keeps having miscarriages. Read about the causes of male infertility and treatments.

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Recently updated studies

Experimental Round Spermatid Injection (ROSI) to Treat Infertile Couples

Recruiting
Ages 18 and older · Men · Updated Sep 17, 2026 · NCT04298255

Male Infertility and Assisted Reproductive Technologies Research Biobank

RecruitingObservational study
All ages · Men · Updated Jun 2, 2026 · NCT06880302

Spermatogonial Stem Cell (SSC) Transplant and Testicular Tissue Grafting

Recruiting
All ages · Men · Updated Apr 22, 2026 · NCT04452305

Improvement of Reproductive Function in Men With Spinal Cord Injury (SCI)

RecruitingPhase 3
Ages 18 and older · Men · Updated Mar 2, 2026 · NCT05903859

Platelet Rich Plasma Testis Treatment for Infertile Men

Recruiting
Ages 18 and older · Men · Updated Jan 13, 2026 · NCT05479474

Prospective Study on Power Prenatal Vitamins for Males on YO Score At-home Sperm Test Results

RecruitingHealthy volunteers welcome
Ages 18 to 50 · Men · Updated Apr 8, 2025 · NCT05951075

Spermatogonial Differentiation Via Testicular Organoid

RecruitingPhase 1/2Healthy volunteers welcome
Ages 18 to 60 · Men · Updated Feb 24, 2025 · NCT06841861

From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.