Oligospermia clinical trials
The registry lists 62 studies for Oligospermia across more than 10 countries. 16 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-23.
Status
- Completed
- 28
- Status unknown
- 13
- Recruiting
- 13
- Terminated
- 4
- Not yet recruiting
- 2
- Withdrawn
- 1
Phase
- Phase 2
- 9
- Phase 3
- 7
- Phase 1
- 5
- Phase 4
- 4
- Early Phase 1
- 2
Where
- China
- 9
- United States
- 7
- Spain
- 6
- Egypt
- 5
- Israel
- 4
- Italy
- 3
Who runs them
Staidson (Beijing) Biopharmaceuticals Co., Ltd (2) · Jinling Hospital, China (2) · Clinique Ovo (2) · Reproductive & Genetic Hospital of CITIC-Xiangya (2) · Mansoura University (1) · Stella Maris Women and Children Hospital (1) · Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (1) · Charite University, Berlin, Germany (1)
Studies
Recruiting first, then most recently updated. Showing 50 of 62 — search for more.
- Efficacy and Safety of a New Sperm Capacitation MethodRecruitingNCT067424371 country
- Sperm, Exposure and Endocrine DisruptorsNot yet recruitingNCT07703046Not applicable1 country
- Maternal Inheritance of a Pathogenic MT-ND1 Mutation Causes Mitochondrial Dysfunction and Spermatogenic Failure in MenRecruitingNCT076918271 country
- A Study to Evaluate the Safety and Tolerability of Single and Multiple Dose of STSP-0902 in Healthy SubjectsRecruitingNCT06948799Phase 11 country
- Hyperbaric Oxygen Therapy for Men Suffering From Infertility Due to Oligospermia.RecruitingNCT05842239Not applicable1 country
- Fertility Restoration With Autografting of Cryopreserved Immature Testicular TissueRecruitingNCT07542626Not applicable1 country
- Isotretinoin vs hCG for Male Infertility Due to Low or Absent SpermEnrolling by invitationNCT07481370Phase 21 country
- Identifying Genome Variants in Non-Obstructive Azoospermia (NOA) or Primary Ovarian Insufficiency (POI)RecruitingNCT073577011 country
- Effect of Daily Intake of Gazpacho on Semen Quality and Oxidative StressRecruitingNCT07375238Not applicable1 country
- Probiotics on Sperm Quality in Male Infertility PatientsRecruitingNCT07345455Not applicable1 country
- Efficacy and Safety Study of Products Based on Tribulus Terrestris, L. in Men With OligospermiaRecruitingNCT06260007Phase 41 country
- Study of Tolerability, Safety, Pharmacokinetics, Pharmacodynamics and Preliminary Efficacy of the Medicinal Product MediReg®RecruitingNCT06869863Phase 1/21 country
- The Association of Gut Microbiota and Spermatogenic DysfunctionRecruitingNCT056289871 country
- Study of the ZyMōt Sperm Selection Method and Its Effect on Embryo Ploidy.RecruitingNCT06384794Not applicable1 country
- Evaluation of Treatment With Coenzyme Q10 and L-Carnitine on Semen Parameters in Infertile Men With Idiopathic OligoasthenoteratospermiaRecruitingNCT06342856Early Phase 11 country
- Effect of Intravesical B.C.G and Gemcitabine on Semen Quality and Testicular VolumeNot yet recruitingNCT05701332Phase 4
- Evaluating Traditional Medicine Syndromes in Male Infertility With OligoasthenoteratozoospermiaCompletedNCT075292881 country
- DHEA Plus Coenzyme Q10 Verus Coenzyme Q10 Alone on Sperm Concentration in Subfertile Male With Oligospermia.CompletedNCT07771153Not applicable1 country
- Varicocelectomy for Cryptozoospermic Men.CompletedNCT07759713Not applicable1 country
- Comparative Evaluation of the Efficacy of Letrozole, L-Carnitine, and Their Combination on Sperm Quality, Oxidative Stress, and ART Outcomes in Men With Idiopathic Oligoasthenoteratozoospermia.CompletedNCT07669402Phase 2/31 country
- PRP Improves Blastocyst Formation in ICSI CyclesCompletedNCT07579858Phase 31 country
- Effect of Walnuts on Sperm Parameters and Male FertilityCompletedNCT01954498Not applicable1 country
- Identifying Candidates for Limited Dissection at Microdissection TESE.CompletedNCT072862791 country
- Timing of Oocyte Retrieval and Micro Testicular Sperm ExtractionCompletedNCT072682351 country
- A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of STSP-0902 in Healthy SubjectsCompletedNCT06563713Phase 11 country
- Safety of Cultured Allogeneic Adult Umbilical Cord Derived Mesenchymal Stem Cells for Testicular Injury and OligospermiaWithdrawnNCT05158114Phase 11 country
- Comparison of ICSI Outcomes in Cycles Using Testicular and Ejaculate Sperm From Couples With High SDFCompletedNCT04795440Not applicable1 country
- Creatine and Ubiquinol for Sperm QualityCompletedNCT06202469Not applicable1 country
- Effects of a Fasting Mimicking Diet on Sperm QualityCompletedNCT04908774Not applicable1 country
- The Role of Electroacupuncture With Standard Therapy on Sperm Analysis and SOD Levels in Oligozoospermia.CompletedNCT06088693Not applicable1 country
- Using of Testes Shocker in Improving the Spermatogenesis and Sperms ActivityStatus unknownNCT05506722Not applicable1 country
- Myo-inositol on Human Semen ParametersCompletedNCT01828710Not applicable1 country
- A Clinical Study of Gulingji Capsule in the Treatment of Idiopathic Oligospermia, Asthenia, and TeratozoospermiaStatus unknownNCT05320536Phase 41 country
- Detection of Microdeletions in the Azoospermia Factor (AZF) Regions in Infertile Male PatientsTerminatedNCT034977281 country
- Efficacy Comparison of Tamoxifen and Tamoxifen With Antioxidants on Semen Quality of Male With Idiopathic InfertilityStatus unknownNCT05200663Phase 21 country
- Effect of Pentoxifylline and Zinc Co-administration in Patients With OligoasthenoteratozoospermiaStatus unknownNCT05156684Not applicable
- Omega-3 PUFA for Treatment of Patients With Idiopathic OligoasthenoteratospermiaStatus unknownNCT03634644Phase 11 country
- Is Oxidative Stress in Semen Reduced by Lifestyle InterventionCompletedNCT03898752Not applicable1 country
- Semen Parameters and COVID-19 in Infertile MenCompletedNCT046435221 country
- Autologous Adipose-Derived Adult Stromal Vascular Cell Administration for Male Patients With InfertilityStatus unknownNCT03762967Phase 21 country
- Impact of Immunotherapy on the Sperm Count of Patients With CancerStatus unknownNCT045540301 country
- Seminal Fluid's Changes Over 20 YearsCompletedNCT04349345
- Sperm Pathology Samples and MorphokineticsCompletedNCT021551791 country
- A Retrospective Study on the Effect of Male Progressive Sperm Count After Semen Pretreatment on ICSI Fertilization OutcomeCompletedNCT035942011 country
- Androgen for Leydig Cell ProliferationCompletedNCT01206270Phase 2/31 country
- Pilot Study on the Effects of FSH Treatment on the Epigenetic Characteristics of Spermatozoa in Infertile Patients With Severe OligozoospermiaTerminatedNCT02605070Phase 31 country
- The Role of Artery-Preserving Varicocelectomy in Subfertile Men With Severe Oligozoospermia.CompletedNCT03344588Not applicable1 country
- Effect of Letrozole on Seminal Parameters in Men With Non Obstructive Azoospermia and Severe Oligozoospermia.CompletedNCT02900105Phase 31 country
- Ramipril for the Treatment of OligospermiaTerminatedNCT01856361Not applicable1 country
- Severe Male Factor Infertility ManagementStatus unknownNCT02752555Not applicable1 country