Clinical trials: Spermatogenesis
Spermatogenesis and Semen Disorders, Infertility, Male
Power Prenatal Supplements for Sperm Quality
Male factor infertility is a leading cause of primary and secondary infertility. Poor sperm quality is defined as having an abnormal semen analysis [WHO 2020 - https://www.who.int/publications/i/item/9789240030787].
- Trial name
- NCT05410782
- Testing
- Power Prenatal for Sperm
- Where
- Canada
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- The Bird and Be Co Inc
Erectile Dysfunction
Effect of TPN171H on Spermatogenesis
This study is a phaseⅠstudy to determine the acute effects of TPN171H on semen function in healthy male subjects.
- Trial name
- NCT05585931
- Testing
- TPN171H 10mg
- Where
- China
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Vigonvita Life Sciences
Human Volunteer
A Study to Examine the Effects of Minocycline Extended-Release Tablets on Sperm Production in Human Males.
Researchers want to find out how Minocycline Extended-Release Tablets affect sperm-production in healthy males. The study will include Minocycline Extended-Release Tablets, a new once-daily formulation of minocycline, compared…
- Trial name
- NCT00765336
- Testing
- minocycline extended release
- Where
- 10 sites in United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Medicis Pharmaceutical Corporation
Contraception
NES Gel-1, To Evaluate Nestorone Gel in Combination With Testosterone Gel
The purpose of this study is to determine the usefulness of two transdermal gels to be used in the future development for a male contraceptive.
- Trial name
- NES-1 (NCT00229593)
- Testing
- Nestorone gel, Testosterone Gel
- Where
- 2 sites in United States
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- University of Washington
Spermatogenesis and Semen Disorders, Infertility, Male
Evaluation of FPT-20 for the Treatment of Spermatogenesis and Semen Disorders
This clinical study aims to evaluate the efficacy and safety of a novel, natural-derived formulation (FPT-20) in supporting spermatogenesis.
- Trial name
- NCT05399212
- Testing
- FPT-20
- Where
- Vietnam
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Trieu, Nguyen Thi, M.D.
Contraception
Manipulation of the Intratesticular Hormonal Milieu With Exogenous Testosterone (HOP 5) Testicular Aspiration Addendum
This study is being offered to all participants of the ACY-5 study as an optional addition to the male contraceptive study in which they participated. Participation is voluntary.
- Trial name
- IHOP-5 (NCT00156650)
- Testing
- Acyline, Testosterone Gel, Depo-Medroxyprogesterone
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- University of Washington
Infertility, Non-obstructive Azoospermia
PET-MRI for Functional Imaging of the Testis: A Feasibility Study
The primary objective of this study is to explore feasibility of testis functionality assessment and testis imaging obtained from Positron Emissions Tomography (PET) /Magnetic Resonance Imagine (MRI).
- Conditions
- Infertility, Non-obstructive Azoospermia, Vasectomy
- Trial name
- NCT02669108
- Testing
- PET/ MRI of the Testis
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- NYU Langone Health
Spermatogenesis and Semen Disorders, Infertility, Male
Prospective Study on Power Prenatal Vitamins for Males on YO Score At-home Sperm Test Results
Male factor infertility is a leading cause of primary and secondary infertility. Poor sperm quality is defined as having an abnormal semen analysis.
- Trial name
- NCT05951075
- Testing
- Power Prenatal for Sperm
- Where
- United States
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- The Bird and Be Co Inc
Healthy, Men
Study of Spermatogenesis Suppression With DMAU Alone or With LNG Versus Placebo Alone in Normal Men
This is a Phase IIa multicenter, double-blind, placebo-controlled study in healthy men to evaluate the spermatogenesis suppression after oral administration of Dimethandrolone Undecanoate (DMAU) alone or with Levonorgestrel (LNG)…
- Conditions
- Healthy, Men, Male Contraception
- Trial name
- NCT03455075
- Testing
- Dimethandrolone-Undecanoate, Levonorgestrel 0.03 MG
- Where
- 2 sites in United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Premier Research
Erectile Dysfunction
Study Evaluating the Effects of Avanafil on Semen Parameters
The purpose of this study is to determine whether avanafil will affect different aspects of sperm production.
- Trial name
- NCT01768676
- Testing
- avanafil
- Where
- 15 sites in United States
- Volunteers
- 181 people, healthy volunteers welcome
- Sponsor
- VIVUS LLC
Male Infertility
Tobacco and Sperm Genome: Effects of Smoking Cessation
Tobacco is a male infertility risk factor. Many studies comparing smokers to non-smokers have shown effects on spermatogenesis and the quality of the male gamete.
- Trial name
- TABAGERM (NCT03552081)
- Testing
- Fragmented DNA evaluation in blood and semen samples
- Where
- France
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Gonadotropin Deficiency
ITT-5 Mechanisms of Spermatogenesis in Man
The purpose of this investigational drug study is to determine how much male hormone, testosterone, is needed to maintain sperm production in the testis.
- Trial name
- ITT-5 (NCT02147964)
- Testing
- Testosterone 1% Gel, Acyline, Dutasteride
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Washington
Male Contraception
Open Label, Dose Escalation, Repeat Dose Study Evaluating YCT-529 in Healthy Males
This is a Phase 1b/2a open-label, dose escalation 3 part-study, 28-day, 90-day or 180 day repeat dose study of YCT-529 in healthy males who have decided to have a vasectomy and are waiting for the procedure and for men who have…
- Trial name
- NCT06542237
- Testing
- YCT-529
- Where
- New Zealand
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- YourChoice Therapeutics, Inc.
Contraception
Male Hormonal Contraceptive Development-ACY-5
The purpose of this research study is to help in the development of male contraception (birth control).
- Trial name
- ACY-5 (NCT00161447)
- Testing
- Acyline, Testosterone Gel, Depo-Medroxyprogesterone
- Where
- United States
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- University of Washington
Erectile Dysfunction
Assess the Effect of Daily Treatment of Vardenafil 20mg or Sildenafil 100mg and Placebo on Sperm Function
Assess the effect of daily treatment of vardenafil 20mg or sildenafil 100mg and placebo on sperm function
- Trial name
- NCT00655590
- Testing
- Levitra (Vardenafil, BAY38-9456), Sildenafil
- Where
- 18 sites in United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Bayer
Spermatogenesis, Erectile Dysfunction
Effect of Udenafil on Spermatogenesis
Study of udenafil daily in subjects with mild or no erectile dysfunction to evaluate effects on semen characteristics.
- Trial name
- NCT01230541
- Testing
- Udenafil
- Where
- 23 sites in United States
- Volunteers
- 239 people, healthy volunteers welcome
- Sponsor
- Warner Chilcott
Cancer, Hematologic Diseases
Autologous Transplantation of Human Cryopreserved Testis Tissue
For pre-pubertal boys undergoing gonadotoxic therapies, freezing immature testicular tissue (ITT) containing spermatogonial stem cells (SSCs) is currently the only option to potentially preserve future fertility.
- Conditions
- Cancer, Hematologic Diseases, Infertility, Male, Azoospermia, Nonobstructive
- Trial name
- ReSTORE (NCT07364409)
- Testing
- Autologous Transplantation of Testis Tissue
- Where
- Denmark
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Herlev and Gentofte Hospital
Infertility, Male, Infertility Unexplained
Using of Testes Shocker in Improving the Spermatogenesis and Sperms Activity
Infertility was reported in approximately 15% of all heterozygous couples, with male factor accounting for nearly half the cases.
- Conditions
- Infertility, Male, Infertility Unexplained, Infertility Due to Complete Spermatogenic Arrest, Oligospermia
- Trial name
- NCT05506722
- Testing
- Testes shocker
- Where
- Iraq
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Healthy
Evaluate the Pharmacokinetics and Gonadotropin Suppression of Nestorone®-Testosterone (NES/T) Combination Gel in Men
This is a prospective, randomized, double-blinded, two-center trial to evaluate the gonadotropin suppressive activity of transdermal treatment with a combined NES/T gel, or T gel alone, for 28 days.
- Trial name
- NCT02432261
- Testing
- Nestorone® /testosterone gel, Testosterone only gel
- Where
- 2 sites in United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Kimberly Myer
Hypogonadism
Influence of Administration Route of Testosterone on Male Fertility
Exogenously administered testosterone will override the normal negative feedback of endogenous testosterone on the hypothalamus and pituitary.
- Trial name
- NCT00705796
- Testing
- MPP10, testosterone, Testosterone
- Where
- Netherlands
- Volunteers
- healthy volunteers welcome
- Sponsor
- Acerus Pharmaceuticals Corporation