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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Sterility, Male Clear all
Withdrawn No phase listed Observational Accepts healthy volunteers

A Clinical Evaluation of Semen Quality Using the MiOXSYS™ System 2.0

NCT02839447
View directory record Official record
Conditions
Male Infertility
Interventions
Diagnostic
Diagnostic Test
Lead sponsor
Aytu BioPharma, Inc.
Industry
Eligibility
21 Years to 45 Years · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
6
States / cities
Miami, Florida • New Orleans, Louisiana • Rochester, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Choline Dehydrogenase and Sperm Function: Effects of Betaine

NCT02122211
View directory record Official record
Conditions
Men Carrying 2 Minor Alleles for Choline Dehydrogenase rs12676, Male Infertility
Interventions
Betaine supplement
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 60 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 7, 2016 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Environmental Exposures on the Egg Fertilizing Ability of Human Sperm

NCT00012480
View directory record Official record
Conditions
Male Infertility, Testicular Diseases, Urologic and Male Genital Diseases, Lead Poisoning
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
21 Years to 55 Years · Male only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2007
U.S. locations
3
States / cities
Los Angeles, California • Manhasset, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Sep 25, 2026, 10:55 PM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Validation of New Devices Against Ambient Electromagnetic Radiation

NCT04541459
View directory record Official record
Conditions
Male Infertility
Interventions
new device against ambient electromagnetic radiation, sham device against ambient electromagnetic radiation
Device
Lead sponsor
Waveguard GmbH
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 5, 2020 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Effect of Metformin Added to Clomiphene Citrate on Pregnancy Rates in Hyperandrogenic, Chronic Oligoovulatory or Anovulatory Women

NCT00413179
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Anovulation, Oligoovulation, Infertility, Hyperandrogenism
Interventions
Metformin, Clomiphene citrate, Placebo
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
18 Years to 40 Years · Female only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2003
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2006 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Phase 2 Interventional Results available

Clomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Administration

NCT01880086
View directory record Official record
Conditions
Hypogonadism, Opioid-Related Disorders, Male Infertility
Interventions
Clomiphene citrate, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Not applicable Interventional

Effect of Walnuts on Sperm Parameters and Male Fertility

NCT01954498
View directory record Official record
Conditions
Oligozoospermia, Asthenozoospermia, Teratozoospermia, Fertility
Interventions
Walnuts, OTC multivitamin
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years and older · Male only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 25, 2026, 10:55 PM EDT
Not listed Phase 2 Interventional

Pulsatile GnRH in Anovulatory Infertility

NCT00383656
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism, Amenorrhea, Kallmann's Syndrome
Interventions
GnRH, Pump
Drug · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1989 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Phase 2 Interventional

Nerve-Sparing Radical Prostatectomy With or Without Nerve Grafting Followed by Standard Therapy for Erectile Dysfunction in Treating Patients With Localized Prostate Cancer

NCT00080808
View directory record Official record
Conditions
Prostate Cancer
Interventions
Alprostadil (E1), Papaverine, Phentolamine mesylate, Sildenafil citrate, conventional surgery
Drug · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Up to 65 Years · Male only
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 29, 2012 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational

Correlating In Vitro Fertilization Outcomes After Euploid Blastocyst Transfer With Sperm DNA Fragmentation

NCT02268123
View directory record Official record
Conditions
Male Infertility
Interventions
Not listed
Lead sponsor
Reproductive Medicine Associates of New Jersey
Other
Eligibility
35 Years to 40 Years
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
2
States / cities
Basking Ridge, New Jersey • Allentown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Sep 25, 2026, 10:55 PM EDT
Recruiting No phase listed Observational

Identifying Genome Variants in Non-Obstructive Azoospermia (NOA) or Primary Ovarian Insufficiency (POI)

NCT07357701
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 25, 2026, 10:55 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Androxal in Male Infertility

NCT02160704
View directory record Official record
Conditions
Infertility
Interventions
Enclomiphene citrate, Placebo
Drug · Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 35 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Sep 25, 2026, 10:55 PM EDT
Recruiting Not applicable Interventional

Platelet Rich Plasma Testis Treatment for Infertile Men

NCT05479474
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of a Supplement on Markers of Male Fertility

NCT07740161
View directory record Official record
Conditions
Male Infertility, Low Sperm Quality, Low Testosterone, Low Energy, Low Libido
Interventions
WeNatal For Him Supplement
Dietary Supplement
Lead sponsor
WeNatal
Industry
Eligibility
30 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational

The Clinical Study of Sex Chromosome Variants

NCT01661010
View directory record Official record
Conditions
Male Factor Infertility, Female Factor Infertility
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational Results available

Retrospective Study on the Use, Efficiency, and Safety of the At-home Mosie Kit

NCT04646291
View directory record Official record
Conditions
Infertility, Infertility, Female, Infertility, Male
Interventions
Insemination with the Mosie Baby Kit
Device
Lead sponsor
Mosie Baby
Industry
Eligibility
Not listed
Enrollment
350 participants
Timeline
2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 23, 2021 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational

Sperm Banking Among Adolescents Newly Diagnosed With Cancer: Development of a Profiling and Referral Tool

NCT01152268
View directory record Official record
Conditions
Cancer
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
13 Years to 21 Years · Male only
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
8
States / cities
Duarte, California • Los Angeles, California • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 9, 2015 · Synced Sep 25, 2026, 10:55 PM EDT
Completed No phase listed Observational

Regulation of Stem Spermatogonia in the Mature Testis

NCT02756923
View directory record Official record
Conditions
Male Infertility
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

FemaSeed LOCAL Artificial Insemination Trial

NCT04968847
View directory record Official record
Conditions
Infertility, Male Factor
Interventions
FemaSeed Localized Directional Insemination
Device
Lead sponsor
Femasys Inc.
Industry
Eligibility
19 Years to 40 Years · Female only
Enrollment
314 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
18
States / cities
Mobile, Alabama • Newark, Delaware • Clearwater, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Not applicable Interventional

Laser-Assisted Versus Conventional Intracytoplasmic Sperm Injection

NCT00114725
View directory record Official record
Conditions
Infertility, Infertility, Male
Interventions
Laser-assisted intracytoplasmic sperm injection
Procedure
Lead sponsor
Shady Grove Fertility Reproductive Science Center
Other
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 25, 2026, 10:55 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Impact of Escitalopram on Sperm DNA Fragmentation

NCT03527043
View directory record Official record
Conditions
Sperm DNA Fragmentation, Infertility, Male
Interventions
Escitalopram, Placebo
Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Sep 25, 2026, 10:55 PM EDT
Recruiting Not applicable Interventional

SISTER: Sibling Oocyte Insemination With Frozen Sperm From Third Party Donors: Evaluation of Reproductive Techniques

NCT07175571
View directory record Official record
Conditions
Infertility, Female, Reproductive Techniques, Assisted, Fertilization in Vitro
Interventions
Intracytoplasmic Sperm Injection (ICSI), Conventional Insemination (IVF)
Procedure
Lead sponsor
Shady Grove Fertility Reproductive Science Center
Other
Eligibility
Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 25, 2026, 10:55 PM EDT
Not listed No phase listed Observational

Relationship of the Microenvironment and Male Fertility

NCT04704141
View directory record Official record
Conditions
Male Infertility, Male Hypogonadism
Interventions
Hormone replacement therapy
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older · Male only
Enrollment
150 participants
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 19, 2023 · Synced Sep 25, 2026, 10:55 PM EDT
Completed Not applicable Interventional

Ablation of Prostate Tissue Utilizing Sterile Water Vapor in Patients With Intermediate Risk Localized Prostate Cancer

NCT04087980
View directory record Official record
Conditions
Prostate Cancer
Interventions
Poseidon System
Device
Lead sponsor
Francis Medical Inc.
Industry
Eligibility
45 Years to 80 Years · Male only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
5
States / cities
Baltimore, Maryland • Minneapolis, Minnesota • Woodbury, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2022 · Synced Sep 25, 2026, 10:55 PM EDT