{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Niraparib+Tablet",
    "query": {
      "intervention": "Niraparib Tablet"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-13T01:43:32.969Z",
  "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": "NCT04812366",
      "title": "Genomic Biomarker-Selected Umbrella Neoadjuvant Study for High Risk Localized Prostate Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Apalutamide 60mg Tab",
          "type": "DRUG"
        },
        {
          "name": "Abiraterone Acetate 250mg",
          "type": "DRUG"
        },
        {
          "name": "Prednisone 5mg Tab",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Niraparib 100mg Oral Capsule",
          "type": "DRUG"
        },
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Tazemetostat Pill",
          "type": "DRUG"
        },
        {
          "name": "Capivasertib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of British Columbia",
      "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": 315,
      "start_date": "2021-09-21",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 5,
      "location_summary": "Sacramento, California • Boston, Massachusetts • Ann Arbor, Michigan + 2 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04812366"
    },
    {
      "nct_id": "NCT04037254",
      "title": "Testing the Addition of a New Anti-Cancer Drug, Niraparib, to the Usual Treatment (Hormone and Radiation Therapy) for Prostate Cancer With a High Chance of Recurring",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Prostate Adenocarcinoma",
        "Stage IIC Prostate Cancer AJCC v8",
        "Stage III Prostate Cancer AJCC v8",
        "Stage IIIA Prostate Cancer AJCC v8",
        "Stage IIIB Prostate Cancer AJCC v8",
        "Stage IIIC Prostate Cancer AJCC v8",
        "Stage IVA Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Gonadotrophin Releasing Hormone",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Niraparib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "NRG Oncology",
      "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": 22,
      "start_date": "2019-10-08",
      "completion_date": "2025-12-23",
      "has_results": true,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 94,
      "location_summary": "Gilbert, Arizona • Tucson, Arizona • Duarte, California + 77 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04037254"
    },
    {
      "nct_id": "NCT04641247",
      "title": "A Long-term Treatment Extension Study of Niraparib in Participants Who Completed a Prior GlaxoSmithKline/TESARO-sponsored Niraparib Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ovarian Neoplasms",
        "Breast Neoplasms"
      ],
      "interventions": [
        {
          "name": "Niraparib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2021-04-16",
      "completion_date": "2026-12-28",
      "has_results": false,
      "last_update_posted_date": "2026-06-24",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 13,
      "location_summary": "Tucson, Arizona • Encinitas, California • Los Angeles, California + 10 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04641247"
    },
    {
      "nct_id": "NCT06329830",
      "title": "177Lu-PSMA, Niraparib/AA Plus Prednisone for Prostate Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Prostate Cancer",
        "Castration-resistant Prostate Cancer",
        "Metastatic Castration-resistant Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "177Lu-PSMA-617",
          "type": "DRUG"
        },
        {
          "name": "Niraparib abiraterone acetate",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baptist Health South Florida",
      "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": 0,
      "start_date": "2024-10",
      "completion_date": "2028-10",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06329830"
    },
    {
      "nct_id": "NCT06161493",
      "title": "ZEN003694 Combined With Niraparib in Patients With Metastatic or Recurrent Solid Tumors",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Ovarian Cancer",
        "Recurrent Solid Tumors"
      ],
      "interventions": [
        {
          "name": "ZEN003694",
          "type": "DRUG"
        },
        {
          "name": "Niraparib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Haider Mahdi",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2024-01-23",
      "completion_date": "2029-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-15",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06161493"
    },
    {
      "nct_id": "NCT03748641",
      "title": "A Study of Niraparib in Combination With Abiraterone Acetate and Prednisone Versus Abiraterone Acetate and Prednisone for Treatment of Participants With Metastatic Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Castration-Resistant Prostatic Cancer"
      ],
      "interventions": [
        {
          "name": "Niraparib",
          "type": "DRUG"
        },
        {
          "name": "Abiraterone Acetate",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "New Formulation of Niraparib and Abiraterone Acetate (AA)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "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": 765,
      "start_date": "2019-01-25",
      "completion_date": "2027-02-27",
      "has_results": true,
      "last_update_posted_date": "2026-07-31",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 47,
      "location_summary": "Homewood, Alabama • Phoenix, Arizona • Tucson, Arizona + 40 more",
      "locations": [
        {
          "city": "Homewood",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Riverside",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03748641"
    },
    {
      "nct_id": "NCT06412120",
      "title": "Study Evaluating Safety, Tolerability, and Metabolism of Niraparib",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Niraparib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 70,
      "start_date": "2026-07-28",
      "completion_date": "2031-07-28",
      "has_results": false,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 3,
      "location_summary": "Fort Lauderdale, Florida • Jacksonville, Florida • Miami, Florida",
      "locations": [
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06412120"
    },
    {
      "nct_id": "NCT03154281",
      "title": "Evaluation of the Safety and Tolerability of Niraparib With Everolimus in Advanced Gynecologic Malignancies and Breast",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer",
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "niraparib",
          "type": "DRUG"
        },
        {
          "name": "everolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Avera McKennan Hospital & University Health Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2017-07-26",
      "completion_date": "2023-05-01",
      "has_results": true,
      "last_update_posted_date": "2024-08-01",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 1,
      "location_summary": "Sioux Falls, South Dakota",
      "locations": [
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03154281"
    },
    {
      "nct_id": "NCT03329001",
      "title": "Crossover Study to Assess the Relative Bioavailability and Bioequivalence of Niraparib Tablet Compared to Niraparib Capsule",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "Niraparib Tablet",
          "type": "DRUG"
        },
        {
          "name": "Niraparib Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tesaro, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 236,
      "start_date": "2017-12-04",
      "completion_date": "2023-06-15",
      "has_results": true,
      "last_update_posted_date": "2024-07-25",
      "last_synced_at": "2026-09-13T01:43:32.969Z",
      "location_count": 16,
      "location_summary": "Encinitas, California • Fresno, California • Denver, Colorado + 13 more",
      "locations": [
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03329001"
    }
  ]
}