{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Frozen+ovarian+tissue",
    "query": {
      "intervention": "Frozen ovarian tissue"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Frozen+ovarian+tissue&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T11:21:00.904Z",
  "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": "NCT01682525",
      "title": "Ovarian Tissue Cryopreservation for Fertility Preservation",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Frozen ovarian tissue",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston IVF",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2012-05",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2016-02-04",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 2,
      "location_summary": "Newton, Massachusetts • Waltham, Massachusetts",
      "locations": [
        {
          "city": "Newton",
          "state": "Massachusetts"
        },
        {
          "city": "Waltham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01682525"
    },
    {
      "nct_id": "NCT00902720",
      "title": "Ovarian Tissue Freezing For Fertility Preservation",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Malignancy",
        "Fertility"
      ],
      "interventions": [
        {
          "name": "Tissue sample storage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "41 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 41 Years · Female only"
      },
      "enrollment_count": 25,
      "start_date": "2009-05",
      "completion_date": "2025-03",
      "has_results": false,
      "last_update_posted_date": "2023-07-05",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00902720"
    },
    {
      "nct_id": "NCT02646384",
      "title": "Ovarian Tissue Cryopreservation in Children",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Ovarian tissue cryopreservation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "FEMALE",
        "summary": "Up to 17 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2017-03-16",
      "completion_date": "2040-01-22",
      "has_results": false,
      "last_update_posted_date": "2026-04-20",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02646384"
    },
    {
      "nct_id": "NCT02429349",
      "title": "Preservation of Ovarian Tissue and Chemo-Radiotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Endocrine Disorders of Female Reproductive System",
        "Secondary Infertility",
        "Infertility Involuntary"
      ],
      "interventions": [
        {
          "name": "surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Tennessee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "8 Years to 40 Years · Female only"
      },
      "enrollment_count": 2,
      "start_date": "2015-05",
      "completion_date": "2020-06-30",
      "has_results": false,
      "last_update_posted_date": "2020-11-13",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 7,
      "location_summary": "Germantown, Tennessee • Memphis, Tennessee",
      "locations": [
        {
          "city": "Germantown",
          "state": "Tennessee"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02429349"
    },
    {
      "nct_id": "NCT06710769",
      "title": "Ovarian Tissue Cryopreservation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility, Female"
      ],
      "interventions": [
        {
          "name": "Ovarian tissue removal will be performed laparoscopically",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Phoenix Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "25 Years",
        "sex": "FEMALE",
        "summary": "1 Year to 25 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2020-07-30",
      "completion_date": "2031-07",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06710769"
    },
    {
      "nct_id": "NCT03496636",
      "title": "Autologous Ovarian Tissue Transplantation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Female Infertility"
      ],
      "interventions": [
        {
          "name": "Ovarian tissue transplant",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2021-03-01",
      "completion_date": "2030-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03496636"
    },
    {
      "nct_id": "NCT05299710",
      "title": "Ovarian Tissue Cryopreservation in Pre-Pubertal (OTC-Pre Pubertal)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancers"
      ],
      "interventions": [
        {
          "name": "Laparoscopic surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Erin Rowell",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "11 Years",
        "sex": "FEMALE",
        "summary": "Up to 11 Years · Female only"
      },
      "enrollment_count": 250,
      "start_date": "2018-05-29",
      "completion_date": "2035-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05299710"
    },
    {
      "nct_id": "NCT01057745",
      "title": "Ovarian Freezing Before Cancer Treatment",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Effects of Chemotherapy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "42 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 42 Years · Female only"
      },
      "enrollment_count": 31,
      "start_date": "2007-06-12",
      "completion_date": "2020-03-31",
      "has_results": false,
      "last_update_posted_date": "2021-04-15",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01057745"
    },
    {
      "nct_id": "NCT04948658",
      "title": "Gonadal Tissue Freezing for Fertility Preservation in Individuals at Risk for Ovarian Dysfunction, Premature Ovarian Insufficiency and Clinically Indicated Gonadectomy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Turner Syndrome",
        "Post-menarcheal Adolescents",
        "Ovarian Disfunction",
        "Galactosemia",
        "Variations in Sex Characteristics",
        "Differences in Sex Development"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "2 Years to 35 Years"
      },
      "enrollment_count": 200,
      "start_date": "2021-09-13",
      "completion_date": "2030-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04948658"
    },
    {
      "nct_id": "NCT02678910",
      "title": "Ovarian Tissue Freezing For Fertility Preservation In Women Facing A Fertility Threatening Medical Diagnosis/Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer",
        "Hematologic Disorder",
        "Rheumatologic Disorder",
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Ovarian Cryopreservation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vlad Radulescu",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "41 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 41 Years · Female only"
      },
      "enrollment_count": 2,
      "start_date": "2017-02-01",
      "completion_date": "2017-06-21",
      "has_results": false,
      "last_update_posted_date": "2020-12-09",
      "last_synced_at": "2026-09-22T11:21:00.904Z",
      "location_count": 2,
      "location_summary": "Lexington, Kentucky • Louisville, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02678910"
    }
  ]
}