{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Rare+Disorder",
    "query": {
      "condition": "Rare Disorder"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 406,
    "total_pages": 41,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Rare+Disorder&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T03:00:23.148Z",
  "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": "NCT00004458",
      "title": "Longitudinal and Biological Study of Childhood Disintegrative Disorder",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pervasive Child Development Disorders",
        "Autism"
      ],
      "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": "9 Years",
        "sex": "ALL",
        "summary": "2 Years to 9 Years"
      },
      "enrollment_count": 220,
      "start_date": "1997-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 2,
      "location_summary": "New Haven, Connecticut • Chicago, Illinois",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004458"
    },
    {
      "nct_id": "NCT00016458",
      "title": "Phase II Pilot Study of Cyclophosphamide and Rabbit Anti-Thymocyte Globulin as Salvage Therapy in Patients With Diffuse Systemic Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systemic Sclerosis"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "Up to 64 Years"
      },
      "enrollment_count": 20,
      "start_date": "2000-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-09-03",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • Durham, North Carolina • Seattle, Washington",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00016458"
    },
    {
      "nct_id": "NCT02432144",
      "title": "A Study of UX003 Recombinant Human Beta-Glucuronidase (rhGUS) Enzyme Replacement Therapy in Subjects With Mucopolysaccharidosis Type 7, Sly Syndrome (MPS 7)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sly Syndrome",
        "MPS VII",
        "Mucopolysaccharidosis",
        "Mucopolysaccharidosis VII"
      ],
      "interventions": [
        {
          "name": "UX003",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ultragenyx Pharmaceutical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2015-11-10",
      "completion_date": "2019-01-14",
      "has_results": true,
      "last_update_posted_date": "2020-07-30",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 4,
      "location_summary": "Oakland, California • Orange, California • Minneapolis, Minnesota + 1 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02432144"
    },
    {
      "nct_id": "NCT06938542",
      "title": "Palliative Care Needs of Children With Rare Diseases and Their Families",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Trisomy 13 Syndrome",
        "Arthrogryposis Congenita Multiplex With Intestinal Atresia",
        "Asparagine Synthetase Deficiency",
        "CHARGE Syndrome",
        "Early Infantile Epileptic Encephalopathy",
        "FOXG1 Syndrome",
        "KBG Syndrome",
        "Noonan Syndrome",
        "Severe Hemophilia A",
        "Short Bowel Syndrome",
        "Beta-Propeller Protein-Associated Neurodegeneration",
        "Brain Injury of Prematurity With Periventricular Leukomalacia",
        "Chromosome 17p13.3 Microdeletion Syndrome",
        "Chromosome 1q43-1q44 Deletion",
        "Cockayne Syndrome",
        "Congenital Diaphragmatic Hernia",
        "End-Stage Renal Disease With Cloacal Anomaly",
        "Mitochondrial Depletion Disorder",
        "Severe Factor VII Deficiency"
      ],
      "interventions": [
        {
          "name": "Family Centered pediatric palliative care for family caregivers of children with rare diseases.",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's National Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "12 Months to 99 Years"
      },
      "enrollment_count": 480,
      "start_date": "2025-10-02",
      "completion_date": "2029-08-02",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06938542"
    },
    {
      "nct_id": "NCT00006394",
      "title": "Randomized Study of Growth Hormone on Bone Mineral Density in Patients With Adult Onset Growth Hormone Deficiency",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoporosis",
        "Growth Hormone Deficiency"
      ],
      "interventions": [
        {
          "name": "growth hormone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Center for Research Resources (NCRR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "1997-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 7,
      "location_summary": "Boston, Massachusetts • Rochester, Minnesota • St Louis, Missouri + 4 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006394"
    },
    {
      "nct_id": "NCT03041324",
      "title": "Ascending Dose Study of Genome Editing by the Zinc Finger Nuclease (ZFN) Therapeutic SB-913 in Subjects With MPS II",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Mucopolysaccharidosis II",
        "MPS II"
      ],
      "interventions": [
        {
          "name": "SB-913",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sangamo Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "5 Years to 65 Years"
      },
      "enrollment_count": 9,
      "start_date": "2017-05-11",
      "completion_date": "2021-05-07",
      "has_results": true,
      "last_update_posted_date": "2022-10-25",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 5,
      "location_summary": "Oakland, California • Chicago, Illinois • New York, New York + 2 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03041324"
    },
    {
      "nct_id": "NCT04931342",
      "title": "A Study Evaluating the Efficacy and Safety of Biomarker-Driven Therapies in Patients With Persistent or Recurrent Rare Epithelial Ovarian Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Ipatasertib",
          "type": "DRUG"
        },
        {
          "name": "Cobimetinib",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab Emtansine",
          "type": "DRUG"
        },
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Giredestrant",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        },
        {
          "name": "Inavolisib",
          "type": "DRUG"
        },
        {
          "name": "Palbociclib",
          "type": "DRUG"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Luteinizing Hormone-Releasing Hormone (LHRH) Agonists",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 176,
      "start_date": "2021-10-07",
      "completion_date": "2028-05-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 8,
      "location_summary": "San Francisco, California • St Louis, Missouri • Charlotte, North Carolina + 5 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04931342"
    },
    {
      "nct_id": "NCT00004842",
      "title": "Pilot Study of Budesonide for Patients With Primary Sclerosing Cholangitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cholangitis, Sclerosing",
        "Liver Cirrhosis, Biliary"
      ],
      "interventions": [
        {
          "name": "budesonide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 22,
      "start_date": "1997-05",
      "completion_date": "1999-04",
      "has_results": false,
      "last_update_posted_date": "2017-05-31",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004842"
    },
    {
      "nct_id": "NCT04771416",
      "title": "Study of Safety, Tolerability and Efficacy of PBKR03 in Pediatric Subjects With Early Infantile Krabbe Disease",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Leukodystrophy, Globoid Cell"
      ],
      "interventions": [
        {
          "name": "PBKR03",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Gemma Biotherapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "9 Months",
        "sex": "ALL",
        "summary": "1 Month to 9 Months"
      },
      "enrollment_count": 24,
      "start_date": "2022-02-24",
      "completion_date": "2030-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • New York, New York • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04771416"
    },
    {
      "nct_id": "NCT04482309",
      "title": "A Phase 2 Study of T-DXd in Patients With Selected HER2 Expressing Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Part 1: Bladder, Biliary Tract, Cervical, Endometrial, Ovarian, Pancreatic Cancer, Rare Tumors, Any Tumor Type Excluding Breast, Gastric, Colorectal Cancer",
        "Part 2: HER2 Expressing/Amplified Solid Tumors Excluding Breast, Gastric, Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Trastuzumab deruxtecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 477,
      "start_date": "2020-08-18",
      "completion_date": "2027-03-23",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-07-22T03:00:23.148Z",
      "location_count": 12,
      "location_summary": "Duarte, California • Santa Rosa, California • Chicago, Illinois + 8 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Santa Rosa",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Muncie",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04482309"
    }
  ]
}