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ClinicalTrials.gov public records Last synced Oct 25, 2026, 1:48 PM EDT

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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Semen Analysis Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Broccoli Sprout/Broccoli Seed Extract Supplement in Decreasing Toxicity in Heavy Smokers

NCT03402230
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma, Tobacco-Related Carcinoma
Interventions
Broccoli Sprout/Broccoli Seed Extract Supplement, Laboratory Biomarker Analysis, Questionnaire Administration
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
2
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Exogenous Ketones on Indices of Keto-Adaptation in Obese Subjects on Weight Reducing Diets.

NCT06449287
View directory record Official record
Conditions
Ketogenic Diet, Weight Loss
Interventions
Diet, Blood Draw, Ketone/Glucose Monitoring, Body Composition, Urine Analysis, Neuropsychological Measures - ANAM
Other · Biological · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional

Semen Analysis After Proton Therapy for Prostate Cancer

NCT01072513
View directory record Official record
Conditions
Prostate Cancer
Interventions
Semen analysis
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older · Male only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 6, 2016 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Sibling Oocyte Study- Comparison of ZyMotTM Microfluidics Device to Density Gradient for Sperm Selection During ICSI

NCT04818593
View directory record Official record
Conditions
ART
Interventions
ZyMot Multi Sperm Separation Device (850 ul), Density Gradient Centrifugation
Device · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced Oct 25, 2026, 1:48 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Relationship Between Fertility Hormone Patterns and Pregnancy Rates.

NCT05033366
View directory record Official record
Conditions
Pregnancy Related, Hormone Deficiency
Interventions
Proov Test
Diagnostic Test
Lead sponsor
MFB Fertility
Industry
Eligibility
18 Years and older · Female only
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 25, 2026, 1:48 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Impact of Dietary Intervention on Inflammation and Microbiome Composition Post-Colonoscopy

NCT06603519
View directory record Official record
Conditions
Colorectal Polyp, Inflammation, Dietary Intervention, Microbiota, Colorectal Neoplasms, Metabolomics
Interventions
Modified Plant-Based Mediterranean Diet
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Impact of Sperm DNA Integrity on Artificial Reproductive Treatment (ART)

NCT00875095
View directory record Official record
Conditions
Sperm DNA Impact on ART Outcomes
Interventions
Not listed
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Sep 8, 2016 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional Results available

A Prospective Study Using Implanted Fiducial Markers to Assess Treatment Accuracy and Esophageal Toxicity in Spinal Stereotactic Body Radiation Therapy

NCT01624220
View directory record Official record
Conditions
Spinal Tumor
Interventions
Spinal SBRT (Standard Dose), Spinal SBRT (Higher Dose), Gold Seed Implantation, Questionnaires
Radiation · Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Completed No phase listed Observational

A Study of the Pre- and Post-operative Semen Analyses and Reproductive Hormone Levels of Men Undergoing Weight-reduction Surgery

NCT00596739
View directory record Official record
Conditions
Male Infertility
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2016 · Synced Oct 25, 2026, 1:48 PM EDT
Terminated Phase 3 Interventional Results available

Microsurgical Varicocelectomy Versus No Surgery in Men With a Palpable Varicocele and an Abnormal Semen Analysis

NCT00767338
View directory record Official record
Conditions
Pregnancy, Infertility
Interventions
Timed intercourse, Microsurgical varicocelectomy, Intrauterine insemination
Behavioral · Procedure
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
9
States / cities
Aurora, Colorado • New Haven, Connecticut • Ann Arbor, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2013 · Synced Oct 25, 2026, 1:48 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

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

NCT05951075
View directory record Official record
Conditions
Spermatogenesis and Semen Disorders, Infertility, Male
Interventions
Power Prenatal for Sperm
Dietary Supplement
Lead sponsor
The Bird and Be Co Inc
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Encino, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 25, 2026, 1:48 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Testicular Evaluation of Azoospermia Using Micro-Ultrasound

NCT06941922
View directory record Official record
Conditions
Azoospermia
Interventions
Not listed
Lead sponsor
Paul Shin
Other
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 25, 2026, 1:48 PM EDT
Enrolling by invitation Early Phase 1 Interventional Accepts healthy volunteers

Systemic and Topical Geroprotective Rejuvenation Assessed by START/REST Aging Clocks

NCT07888595
View directory record Official record
Conditions
Aging
Interventions
Topical anti-aging peptide serum
Drug
Lead sponsor
Frontiers in Bioscience Research Institute and Aging
Other
Eligibility
50 Years to 100 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional Results available

Home Semen Testing in Men Beginning Attempts to Conceive

NCT05503862
View directory record Official record
Conditions
Male Infertility
Interventions
YoSperm
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Male only
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

PET-MRI for Functional Imaging of the Testis: A Feasibility Study

NCT02669108
View directory record Official record
Conditions
Infertility, Non-obstructive Azoospermia, Vasectomy
Interventions
PET/ MRI of the Testis
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 27, 2017 · Synced Oct 25, 2026, 1:48 PM EDT
Completed No phase listed Observational

Changes in Semen or Sperm Caused by Temozolomide in Patients With Newly Diagnosed, Progressive, or Recurrent Primary Malignant Brain Tumors

NCT00499798
View directory record Official record
Conditions
Brain and Central Nervous System Tumors, Chemotherapeutic Agent Toxicity, Infertility
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 60 Years · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 25, 2026, 1:48 PM EDT
Completed No phase listed Observational

Biospecimen Analysis in Determining Effects of Chemotherapy on Fertility in Osteosarcoma Survivors

NCT03206450
View directory record Official record
Conditions
Osteosarcoma
Interventions
Biospecimen Collection, Laboratory Biomarker Analysis, Questionnaire Administration
Procedure · Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
18 Years to 50 Years · Male only
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
93
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 76 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Oct 25, 2026, 1:48 PM EDT
Terminated No phase listed Observational

Fertility Assessment in Patients With Klinefelter Syndrome

NCT02461303
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
Counseling
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years to 25 Years · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 24, 2018 · Synced Oct 25, 2026, 1:48 PM EDT
Enrolling by invitation Phase 2 Interventional

Isotretinoin vs hCG for Male Infertility Due to Low or Absent Sperm

NCT07481370
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pesticides--Health Fertility and Reproductive Risk

NCT00015561
View directory record Official record
Conditions
Birth Defects, Miscarriages, Cancer
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 70 Years
Enrollment
1,803 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2001
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 4, 2006 · Synced Oct 25, 2026, 1:48 PM EDT
Withdrawn No phase listed Observational

Trial of Prostate Cancer Patients Undergoing Active Surveillance With or Without MRI-Guided Management

NCT01838265
View directory record Official record
Conditions
Prostate Cancer, Prostate Adenocarcinoma
Interventions
Transrectal Ultrasound-Guided Biopsy, MRI Ultrasound Biopsy, Expanded Prostate Cancer index Composite Questionnaire, Short-Form 12 of Health Related Quality of Life Questionnaire, Memorial Anxiety Scale for Prostate Cancer, Plasma/Serum Sample for biomarkers, Urine Sample for Biomarkers, Blood Tests for Blood Urea Nitrogen and Creatinine, Blood Test for Serum PSA
Procedure · Behavioral
Lead sponsor
University of Miami
Other
Eligibility
35 Years to 75 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 8, 2014 · Synced Oct 25, 2026, 1:48 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Household Participants

NCT06590649
View directory record Official record
Conditions
Type 2 Diabetes, Hypertension, Dyslipidemias, Overweight and Obesity
Interventions
Household-level effects
Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Honolulu, Hawaii • Kapolei, Hawaii
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional

Fast Track to Fertility

NCT07154888
View directory record Official record
Conditions
Infertility
Interventions
Fast Track to Fertility Algorithmic Text Messaging Platform
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 25, 2026, 1:48 PM EDT
Completed Not applicable Interventional

The Value of HBA in the Evaluation of Idiopathic Infertility

NCT01683435
View directory record Official record
Conditions
Infertility
Interventions
HBA binding assay
Other
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 40 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 2, 2015 · Synced Oct 25, 2026, 1:48 PM EDT