{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=GTx-758",
    "query": {
      "intervention": "GTx-758"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T17:18:18.519Z",
  "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": "NCT01393119",
      "title": "Phase II, Dose Finding Study of GTx-758",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "GTx-758",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GTx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "45 Years to 80 Years · Male only"
      },
      "enrollment_count": 77,
      "start_date": "2011-08",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2024-04-22",
      "last_synced_at": "2026-09-06T17:18:18.519Z",
      "location_count": 21,
      "location_summary": "Glendale, Arizona • Phoenix, Arizona • La Mesa, California + 18 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "San Bernardino",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01393119"
    },
    {
      "nct_id": "NCT01326312",
      "title": "Effect of GTx-758 on Total and Free Testosterone Levels in Men With Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "GTx-758 1000mg",
          "type": "DRUG"
        },
        {
          "name": "Lupron Depot",
          "type": "DRUG"
        },
        {
          "name": "GTx-758 2000mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GTx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "45 Years to 80 Years · Male only"
      },
      "enrollment_count": 159,
      "start_date": "2011-06",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-09-06T17:18:18.519Z",
      "location_count": 36,
      "location_summary": "Phoenix, Arizona • La Mesa, California • Los Angeles, California + 33 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Bernardino",
          "state": "California"
        },
        {
          "city": "Middlebury",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01326312"
    },
    {
      "nct_id": "NCT01615120",
      "title": "Study of the Effect of GTx-758 on Serum PSA and Testosterone in Men With Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "GTx-758 125 mg",
          "type": "DRUG"
        },
        {
          "name": "GTx-758 250 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GTx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 77,
      "start_date": "2012-08-14",
      "completion_date": "2016-11-09",
      "has_results": true,
      "last_update_posted_date": "2021-03-24",
      "last_synced_at": "2026-09-06T17:18:18.519Z",
      "location_count": 26,
      "location_summary": "Burbank, California • Los Angeles, California • San Bernardino, California + 21 more",
      "locations": [
        {
          "city": "Burbank",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Bernardino",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01615120"
    },
    {
      "nct_id": "NCT01420861",
      "title": "GTx-758 on Serum Prostate-specific Antigen (PSA) in Men With Castrate Resistant Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "GTx-758",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GTx",
      "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": 18,
      "start_date": "2011-09",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2023-10-06",
      "last_synced_at": "2026-09-06T17:18:18.519Z",
      "location_count": 7,
      "location_summary": "San Bernardino, California • Jeffersonville, Indiana • Albuquerque, New Mexico + 4 more",
      "locations": [
        {
          "city": "San Bernardino",
          "state": "California"
        },
        {
          "city": "Jeffersonville",
          "state": "Indiana"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Syracuse",
          "state": "New York"
        },
        {
          "city": "Bala-Cynwyd",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01420861"
    }
  ]
}