{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+testosterone+undecanoate",
    "query": {
      "intervention": "Oral testosterone undecanoate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+testosterone+undecanoate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T08:46:46.093Z",
  "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": "NCT04134091",
      "title": "The Efficacy, Safety and Tolerability of Oral LPCN 1144 in Subjects With Nonalcoholic Steatohepatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nonalcoholic Steatohepatitis (NASH)"
      ],
      "interventions": [
        {
          "name": "LPCN 1144 Formulation A",
          "type": "DRUG"
        },
        {
          "name": "LPCN 1144 Formulation B",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lipocine Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "18 Years to 80 Years · Male only"
      },
      "enrollment_count": 56,
      "start_date": "2019-08-27",
      "completion_date": "2021-06-24",
      "has_results": true,
      "last_update_posted_date": "2023-12-14",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 19,
      "location_summary": "El Cajon, California • Murrieta, California • Rialto, California + 14 more",
      "locations": [
        {
          "city": "El Cajon",
          "state": "California"
        },
        {
          "city": "Murrieta",
          "state": "California"
        },
        {
          "city": "Rialto",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04134091"
    },
    {
      "nct_id": "NCT00911586",
      "title": "Pharmacokinetic Study to Determine Time to Steady-state",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Male Hypogonadism",
        "Primary Hypogonadism",
        "Secondary Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Testosterone undecanoate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clarus Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "MALE",
        "summary": "18 Years to 75 Years · Male only"
      },
      "enrollment_count": 15,
      "start_date": "2009-07",
      "completion_date": "2010-01",
      "has_results": true,
      "last_update_posted_date": "2020-12-11",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00911586"
    },
    {
      "nct_id": "NCT03973840",
      "title": "Assessment of Blood From Men Receiving Oral TU in Various Collection Tubes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypogonadism, Male"
      ],
      "interventions": [
        {
          "name": "Testosterone Undecanoate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clarus Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 13,
      "start_date": "2018-07-15",
      "completion_date": "2018-07-31",
      "has_results": false,
      "last_update_posted_date": "2019-07-09",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 1,
      "location_summary": "Northbrook, Illinois",
      "locations": [
        {
          "city": "Northbrook",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03973840"
    },
    {
      "nct_id": "NCT01699178",
      "title": "Open-label, Follow-up Study of Oral Testosterone Undecanoate in Hypogonadal Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Male Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Oral testosterone undecanoate",
          "type": "DRUG"
        },
        {
          "name": "Transdermal testosterone gel (AndroGel)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clarus Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "MALE",
        "summary": "18 Years to 75 Years · Male only"
      },
      "enrollment_count": 182,
      "start_date": "2012-08",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2021-06-28",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • Calera, Alabama • Huntsville, Alabama + 20 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Calera",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01699178"
    },
    {
      "nct_id": "NCT07742553",
      "title": "Testosterone Therapy With or Without Finasteride After Spinal Cord Injury: TRT-SCI Trial",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Spinal Cord Injury",
        "Spinal Cord Injuries",
        "Injuries, Spinal Cord",
        "Spinal Cord Contusion",
        "Spinal Cord Trauma",
        "Trauma, Nervous System",
        "Wounds and Injuries",
        "Spinal Cord Compression",
        "Nervous System Diseases",
        "Spinal Cord Diseases",
        "Gonadal Disorders",
        "Endocrine System Diseases",
        "Hypogonadism",
        "Genital Diseases, Male"
      ],
      "interventions": [
        {
          "name": "testosterone cypionate",
          "type": "DRUG"
        },
        {
          "name": "finasteride",
          "type": "DRUG"
        },
        {
          "name": "placebo injection",
          "type": "DRUG"
        },
        {
          "name": "placebo pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 300,
      "start_date": "2027-10-01",
      "completion_date": "2032-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • Gainesville, Florida • Tampa, Florida + 1 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07742553"
    },
    {
      "nct_id": "NCT02222558",
      "title": "Oral Testosterone for the Treatment of Hypogonadism in Males",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "TSX-002",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "TesoRx Pharma, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "18 Years to 70 Years · Male only"
      },
      "enrollment_count": 25,
      "start_date": "2014-09",
      "completion_date": "2015-05",
      "has_results": true,
      "last_update_posted_date": "2016-05-30",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02222558"
    },
    {
      "nct_id": "NCT06082817",
      "title": "An Open-Label Study of 50 Mg Oral Testosterone Undecanoate (Kyztrex) in Menopausal Women with Low Testosterone and HSDD",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypoactive Sexual Desire Disorder"
      ],
      "interventions": [
        {
          "name": "Oral Testosterone Undecanoate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "San Diego Sexual Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 75 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2025-01-01",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-11-13",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06082817"
    },
    {
      "nct_id": "NCT02921386",
      "title": "The Effect of Various Amounts of Fat on PK of Oral Testosterone Undecanoate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Oral Testosterone Undecanoate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clarus Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 18,
      "start_date": "2016-10",
      "completion_date": "2017-01-21",
      "has_results": true,
      "last_update_posted_date": "2018-05-17",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 2,
      "location_summary": "Torrance, California • Orlando, Florida",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02921386"
    },
    {
      "nct_id": "NCT06393634",
      "title": "Comparing Direct and Indirect Detection Methods of Multiple Routes of Testosterone Administration",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Testosterone injection",
          "type": "DRUG"
        },
        {
          "name": "Testosterone gel",
          "type": "DRUG"
        },
        {
          "name": "Testosterone Oral",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sports Medicine Research and Testing Laboratory",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "MALE",
        "summary": "18 Years to 60 Years · Male only"
      },
      "enrollment_count": 14,
      "start_date": "2024-11-27",
      "completion_date": "2024-11-27",
      "has_results": false,
      "last_update_posted_date": "2024-12-03",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 1,
      "location_summary": "South Jordan, Utah",
      "locations": [
        {
          "city": "South Jordan",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06393634"
    },
    {
      "nct_id": "NCT01765179",
      "title": "Safety and Efficacy Trial of Testosterone Undecanoate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Male Hypogonadism"
      ],
      "interventions": [
        {
          "name": "Oral testosterone undecanoate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Clarus Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "MALE",
        "summary": "18 Years to 75 Years · Male only"
      },
      "enrollment_count": 144,
      "start_date": "2013-01",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2017-12-12",
      "last_synced_at": "2026-09-24T08:46:46.093Z",
      "location_count": 27,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 22 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01765179"
    }
  ]
}