{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Testosterone",
    "query": {
      "condition": "Testosterone"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 393,
    "total_pages": 40,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Testosterone&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T11:39:07.912Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT04363164",
      "title": "Sequential Testosterone and Enzalutamide Prevents Unfavorable Progression",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Castration Resistant Metastatic Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Testosterone cypionate",
          "type": "DRUG"
        },
        {
          "name": "Enzalutamide",
          "type": "DRUG"
        },
        {
          "name": "Testosterone enanthate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "18 Years to 90 Years · Male only"
      },
      "enrollment_count": 150,
      "start_date": "2020-08-19",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 6,
      "location_summary": "San Diego, California • Baltimore, Maryland • Boston, Massachusetts + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04363164"
    },
    {
      "nct_id": "NCT03734653",
      "title": "Testosterone Therapy in Castration Resistant Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Prostate Cancer",
        "Castration-Resistant Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Transdermal Testosterone",
          "type": "DRUG"
        },
        {
          "name": "Standard of Care, Enzalutamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "MALE",
        "summary": "18 Years to 100 Years · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2019-01-18",
      "completion_date": "2025-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-06",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03734653"
    },
    {
      "nct_id": "NCT00351819",
      "title": "Effects of Testosterone Replacement on Pain Sensitivity and Pain Perception",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain",
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "AndroGel",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "MALE",
        "summary": "18 Years to 100 Years · Male only"
      },
      "enrollment_count": 84,
      "start_date": "2006-04",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2017-06-28",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00351819"
    },
    {
      "nct_id": "NCT04460872",
      "title": "Locomotor Training With Testosterone to Promote Bone and Muscle Health After Spinal Cord Injury",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Spinal Cord Injury",
        "Spinal Cord Injuries",
        "Trauma, Nervous System",
        "Wounds and Injury",
        "Central Nervous System Diseases",
        "Spinal Cord Diseases",
        "Gonadal Disorders",
        "Endocrine System Diseases",
        "Hypogonadism",
        "Genital Diseases, Male",
        "Spinal Cord Trauma",
        "Injuries, Spinal Cord",
        "Walking, Difficulty",
        "Gait Disorders, Neurologic",
        "Locomotion Disorder, Neurologic",
        "Wounds and Injuries",
        "Nervous System Diseases",
        "Testosterone Deficiency",
        "Androgen Deficiency",
        "Hormone Deficiency"
      ],
      "interventions": [
        {
          "name": "Testosterone Enanthate",
          "type": "DRUG"
        },
        {
          "name": "Locomotor Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "North Florida Foundation for Research and Education",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 21,
      "start_date": "2021-01-31",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-05-06",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 2,
      "location_summary": "Gainesville, Florida • Jacksonville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04460872"
    },
    {
      "nct_id": "NCT06998238",
      "title": "Evaluating the Influence of Diet-induced Weight Loss on Fat (Adipose) Tissue's Insulin Sensitivity and Testosterone Synthesis in Women With Overweight or Obesity, Insulin Resistance, and Hyperandrogenemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity",
        "Hyperandrogenemia",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Mediterranean-based, carbohydrate restricted, calorie reduced diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 45 Years · Female only"
      },
      "enrollment_count": 8,
      "start_date": "2024-01-07",
      "completion_date": "2026-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-17",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06998238"
    },
    {
      "nct_id": "NCT01904734",
      "title": "Clomid in Men With Low Testosterone With and Without Prior Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypogonadism, Male"
      ],
      "interventions": [
        {
          "name": "Clomiphene",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phoenix VA Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "30 Years to 70 Years · Male only"
      },
      "enrollment_count": 42,
      "start_date": "2012-10",
      "completion_date": "2018-10-31",
      "has_results": false,
      "last_update_posted_date": "2021-03-10",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01904734"
    },
    {
      "nct_id": "NCT02147964",
      "title": "ITT-5 Mechanisms of Spermatogenesis in Man",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Gonadotropin Deficiency"
      ],
      "interventions": [
        {
          "name": "Testosterone 1% Gel",
          "type": "DRUG"
        },
        {
          "name": "Acyline",
          "type": "DRUG"
        },
        {
          "name": "Dutasteride",
          "type": "DRUG"
        },
        {
          "name": "Ketoconazole",
          "type": "DRUG"
        },
        {
          "name": "HCG",
          "type": "DRUG"
        },
        {
          "name": "placebo dutasteride",
          "type": "DRUG"
        },
        {
          "name": "placebo ketoconazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 0,
      "start_date": "2019-06",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2019-12-18",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02147964"
    },
    {
      "nct_id": "NCT01127659",
      "title": "Testosterone Replacement in Men With Diabetes and Obesity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "testosterone",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "30 Years to 65 Years · Male only"
      },
      "enrollment_count": 137,
      "start_date": "2010-05",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2022-11-29",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Williamsville, New York",
      "locations": [
        {
          "city": "Williamsville",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01127659"
    },
    {
      "nct_id": "NCT00304213",
      "title": "Does Testosterone Improve Function in Hypogonadal Older Men",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Testosterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "North Florida Foundation for Research and Education",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "60 Years to 80 Years · Male only"
      },
      "enrollment_count": 0,
      "start_date": "2006-03",
      "completion_date": "2009-04",
      "has_results": false,
      "last_update_posted_date": "2015-02-13",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00304213"
    },
    {
      "nct_id": "NCT00431197",
      "title": "Steady-State Feedback Actions of Testosterone on Luteinizing Hormone Secretion in Young and Older Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Ketoconazole, Dexamethesone, Androgel,GnRH",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "18 Years to 80 Years · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2004-02",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2010-01-28",
      "last_synced_at": "2026-07-24T11:39:07.912Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00431197"
    }
  ]
}