{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oocyte+cryopreservation",
    "query": {
      "intervention": "Oocyte cryopreservation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 26,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oocyte+cryopreservation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T05:38:26.628Z",
  "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": "NCT00451009",
      "title": "Safety and Efficacy of Freezing and Thawing of Human Eggs in Assisted Reproductive Technology",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Viacell's product Media Kits",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "ViaCell",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 35 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2007-03",
      "completion_date": "2009-04",
      "has_results": false,
      "last_update_posted_date": "2014-05-29",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 4,
      "location_summary": "San Ramon, California • South Miami, Florida • Iowa City, Iowa + 1 more",
      "locations": [
        {
          "city": "San Ramon",
          "state": "California"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Waltham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00451009"
    },
    {
      "nct_id": "NCT07225660",
      "title": "Hormonal Optimization: Late vs. Immediate Start After Discontinuation of Oral Contraceptives in Assisted Reproductive technologY (HOLIDAY)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fertility Preservation"
      ],
      "interventions": [
        {
          "name": "OCP pause",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Shady Grove Fertility Reproductive Science Center",
      "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": 394,
      "start_date": "2026-02-25",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-02",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 3,
      "location_summary": "Orange, Connecticut • Rockville, Maryland • New York, New York",
      "locations": [
        {
          "city": "Orange",
          "state": "Connecticut"
        },
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07225660"
    },
    {
      "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": "2026-09-08T05:38:26.628Z",
      "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": "NCT00699400",
      "title": "Oocyte Cryopreservation Registry (HOPE Registry)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Oocyte Cryopreservation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 204,
      "start_date": "2008-06",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2014-01-24",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 15,
      "location_summary": "Fountain Valley, California • Laguna Hills, California • Newport Beach, California + 11 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00699400"
    },
    {
      "nct_id": "NCT00716118",
      "title": "Oocyte Cryopreservation: The Impact of Cryopreservation on the Meiotic Spindle and Mitochondria of Human Oocytes.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infertility"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "West Coast Fertility Centers",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "37 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 37 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2008-07",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2011-01-06",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Fountain Valley, California",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00716118"
    },
    {
      "nct_id": "NCT00986687",
      "title": "Oocyte Cryopreservation Comparing Fresh and Vitrified Sibling Oocytes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infertility"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "UConn Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "37 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 37 Years · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2009-08",
      "completion_date": "2013-02",
      "has_results": false,
      "last_update_posted_date": "2015-12-03",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00986687"
    },
    {
      "nct_id": "NCT03031990",
      "title": "Stress and Fertility: How to Lower Stress When Trying to Conceive",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anxiety",
        "Infertility, Female"
      ],
      "interventions": [
        {
          "name": "In-person yoga for fertility group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Online yoga for fertility group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "In person discussion only group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Fertility Centers of Illinois",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "24 Years",
        "maximum_age": "42 Years",
        "sex": "FEMALE",
        "summary": "24 Years to 42 Years · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2017-01",
      "completion_date": "2017-04",
      "has_results": false,
      "last_update_posted_date": "2017-02-20",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03031990"
    },
    {
      "nct_id": "NCT00963625",
      "title": "Comparison of Transfers of Fresh and Thawed Embryos in Normal Responder Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Embryo cryopreservation",
          "type": "PROCEDURE"
        },
        {
          "name": "Fresh blastocyst transfer",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Fertility Center of Las Vegas",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2007-10",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2010-10-13",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00963625"
    },
    {
      "nct_id": "NCT07175571",
      "title": "SISTER: Sibling Oocyte Insemination With Frozen Sperm From Third Party Donors: Evaluation of Reproductive Techniques",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility, Female",
        "Reproductive Techniques, Assisted",
        "Fertilization in Vitro"
      ],
      "interventions": [
        {
          "name": "Intracytoplasmic Sperm Injection (ICSI)",
          "type": "PROCEDURE"
        },
        {
          "name": "Conventional Insemination (IVF)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Shady Grove Fertility Reproductive Science Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 95,
      "start_date": "2025-09-15",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Rockville, Maryland",
      "locations": [
        {
          "city": "Rockville",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07175571"
    },
    {
      "nct_id": "NCT03483298",
      "title": "Split Cohort Trial Comparing IVF Outcomes After the Use of Testicular vs. Ejaculated Sperm for ICSI",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "ICSI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Reproductive Medicine Associates of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 7,
      "start_date": "2018-06-23",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-01-28",
      "last_synced_at": "2026-09-08T05:38:26.628Z",
      "location_count": 1,
      "location_summary": "Basking Ridge, New Jersey",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03483298"
    }
  ]
}