{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fertility+Preservation&page=2",
    "query": {
      "condition": "Fertility Preservation",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fertility+Preservation&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-25T14:44:45.045Z",
  "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": "NCT05829928",
      "title": "Testicular Tissue Cryopreservation in the Setting of Gender-Affirming Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gender Dysphoria",
        "Transgender"
      ],
      "interventions": [
        {
          "name": "Infectious Disease Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Gonadal Tissue Removal",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "9 Years and older · Male only"
      },
      "enrollment_count": 150,
      "start_date": "2019-05-09",
      "completion_date": "2029-05",
      "has_results": false,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05829928"
    },
    {
      "nct_id": "NCT00507780",
      "title": "Effect of Cetrorelex Acetate on Ovarian Function in Women Undergoing Chemotherapy",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ovarian Function",
        "Preservation of Ovarian Function"
      ],
      "interventions": [
        {
          "name": "GnRH antagonist",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "21 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 21 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2007-07-18",
      "completion_date": "2010-07-22",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00507780"
    },
    {
      "nct_id": "NCT06518746",
      "title": "Gonadal Dysgenesis Tissue Cryopreservation for Fertility Preservation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Cryopreservation of gonadal tissue",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 50,
      "start_date": "2021-08-16",
      "completion_date": "2031-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-18",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06518746"
    },
    {
      "nct_id": "NCT01035099",
      "title": "RCT of Fixed vs Titrated Letrozole in Breast Cancer Patient Undergoing IVF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Breast Cancer",
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 45 Years · Female only"
      },
      "enrollment_count": 41,
      "start_date": "2009-11",
      "completion_date": "2022-09-30",
      "has_results": true,
      "last_update_posted_date": "2022-12-13",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01035099"
    },
    {
      "nct_id": "NCT00504699",
      "title": "Safety of Ovarian Stimulation With Letrozole and Gonadotropins in Breast Cancer Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Ovarian stimulation in vitro fertilization cryopreservation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "New York Medical College",
      "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": 120,
      "start_date": "2002-01",
      "completion_date": "2018-03-01",
      "has_results": false,
      "last_update_posted_date": "2018-03-29",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Valhalla, New York",
      "locations": [
        {
          "city": "Valhalla",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00504699"
    },
    {
      "nct_id": "NCT05842070",
      "title": "The Stanford Egg Freezing Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fertility Issues",
        "Reproductive Issues"
      ],
      "interventions": [
        {
          "name": "Low-Intensity Egg Freezing Protocol",
          "type": "PROCEDURE"
        },
        {
          "name": "High-Intensity Egg Freezing Protocol",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "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": 168,
      "start_date": "2023-07-26",
      "completion_date": "2025-04-04",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Sunnyvale, California",
      "locations": [
        {
          "city": "Sunnyvale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05842070"
    },
    {
      "nct_id": "NCT01232972",
      "title": "Oocyte Cryopreservation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fertility"
      ],
      "interventions": [
        {
          "name": "vitrification of oocytes",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwell Health",
      "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": 23,
      "start_date": "2010-10",
      "completion_date": "2013-03",
      "has_results": false,
      "last_update_posted_date": "2013-04-23",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Manhasset, New York",
      "locations": [
        {
          "city": "Manhasset",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01232972"
    },
    {
      "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": "2026-06-25T14:44:45.045Z",
      "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": "NCT00839839",
      "title": "Egg Freezing Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility",
        "Egg Freezing"
      ],
      "interventions": [
        {
          "name": "Oocyte Vitrification",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University Reproductive Associates",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 10,
      "start_date": "2009-02",
      "completion_date": "2011-02",
      "has_results": false,
      "last_update_posted_date": "2015-12-03",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "Hasbrouck Heights, New Jersey",
      "locations": [
        {
          "city": "Hasbrouck Heights",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00839839"
    },
    {
      "nct_id": "NCT01843140",
      "title": "Assessing Reproductive Outcomes in Young Female Cancer Survivors Through a National Fertility Preservation Registry",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Infertilty"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 44 Years · Female only"
      },
      "enrollment_count": 55,
      "start_date": "2011-05",
      "completion_date": "2028-04-01",
      "has_results": false,
      "last_update_posted_date": "2024-10-30",
      "last_synced_at": "2026-06-25T14:44:45.045Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01843140"
    }
  ]
}