{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=MAS",
    "query": {
      "condition": "MAS"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 38,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=MAS&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T09:47:32.554Z",
  "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": "NCT00006174",
      "title": "Effects of Letrozole on Precocious Puberty Due to McCune Albright Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "McCune Albright Syndrome",
        "Polyostotic Fibrous Dysplasia",
        "Precocious Puberty"
      ],
      "interventions": [
        {
          "name": "Letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "8 Years",
        "sex": "FEMALE",
        "summary": "1 Year to 8 Years · Female only"
      },
      "enrollment_count": 25,
      "start_date": "2000-08-03",
      "completion_date": "2009-05-18",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006174"
    },
    {
      "nct_id": "NCT00001973",
      "title": "Studies on Abnormal Bone From Patients With Polyostotic Fibrous Dysplasia and McCune Albright Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Polyostotic Fibrous Dysplasia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": "1996-12-18",
      "completion_date": "2008-12-12",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001973"
    },
    {
      "nct_id": "NCT03512314",
      "title": "Therapeutic Use of Tadekinig Alfa in NLRC4 Mutation and XIAP Deficiency As Open Label Extension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "XIAP Deficiency",
        "NLRC4-MAS"
      ],
      "interventions": [
        {
          "name": "Tadekinig alfa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AB2 Bio Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 11,
      "start_date": "2018-01-24",
      "completion_date": "2024-05-08",
      "has_results": false,
      "last_update_posted_date": "2025-03-17",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 8,
      "location_summary": "La Jolla, California • Gainsville, Florida • Atlanta, Georgia + 5 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Gainsville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03512314"
    },
    {
      "nct_id": "NCT01966367",
      "title": "CD34+ (Non-Malignant) Stem Cell Selection for Patients Receiving Allogeneic Stem Cell Transplantation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Bone Marrow Failure Syndrome",
        "Severe Aplastic Anemia",
        "Severe Congenital Neutropenia",
        "Amegakaryocytic Thrombocytopenia",
        "Diamond-Blackfan Anemia",
        "Schwachman Diamond Syndrome",
        "Primary Immunodeficiency Syndromes",
        "Acquired Immunodeficiency Syndromes",
        "Histiocytic Syndrome",
        "Familial Hemophagocytic Lymphocytosis",
        "Lymphohistiocytosis",
        "Macrophage Activation Syndrome",
        "Langerhans Cell Histiocytosis (LCH)",
        "Hemoglobinopathies",
        "Sickle Cell Disease",
        "Sickle Cell-beta-thalassemia"
      ],
      "interventions": [
        {
          "name": "CD34 Stem Cell Selection Therapy",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Diane George",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "Up to 40 Years"
      },
      "enrollment_count": 37,
      "start_date": "2013-03",
      "completion_date": "2030-02",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01966367"
    },
    {
      "nct_id": "NCT06339177",
      "title": "Hemophagocytic Lymphohistiocytosis (HLH) Evaluation and Research of Clinical, ImmUnoLogic and TranscriptomE Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lymphohistiocytosis, Hemophagocytic",
        "Secondary Hemophagocytic Lymphohistiocytosis",
        "Macrophage Activation Syndrome",
        "Hyperinflammatory Syndromes"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 300,
      "start_date": "2024-07-02",
      "completion_date": "2031-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-20",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06339177"
    },
    {
      "nct_id": "NCT02061800",
      "title": "CD34+ (Malignant) Stem Cell Selection for Patients Receiving Allogenic Stem Cell Transplant",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Myeloid Leukemia (CML)",
        "Acute Myelogenous Leukemia (AML)",
        "Myelodysplastic Syndrome (MDS)",
        "Juvenile Myelomonocytic Leukemia (JMML)",
        "Acute Lymphoblastic Leukemia (ALL)",
        "Lymphoma (Hodgkin's and Non-Hodgkin's)"
      ],
      "interventions": [
        {
          "name": "CliniMACS CD34+ Reagent System",
          "type": "DEVICE"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Diane George",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "Up to 22 Years"
      },
      "enrollment_count": 14,
      "start_date": "2013-06-03",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2024-06-04",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02061800"
    },
    {
      "nct_id": "NCT06063083",
      "title": "Tell Me More (\"Dime Mas\")",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV",
        "Mental Health Issue"
      ],
      "interventions": [
        {
          "name": "Tell Me More (\"Dime Mas\")",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peer Ambassador Stories [Listen Miami (\"Oye Miami\")]",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Community Outreach",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 90,
      "start_date": "2024-01-12",
      "completion_date": "2026-04-20",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "Coral Gables, Florida",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06063083"
    },
    {
      "nct_id": "NCT02743377",
      "title": "PET Imaging of Phosphodiesterase-4 (PDE4) in Brain and Peripheral Organs of McCune-Albright Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Nervous System Disease"
      ],
      "interventions": [
        {
          "name": "Brain PET Imaging with 11C Rolipram",
          "type": "OTHER"
        },
        {
          "name": "Whole Body PET Baseline with 11C Rolipram",
          "type": "DRUG"
        },
        {
          "name": "Whole Body PET Blocked with Roflumilast",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2018-04-04",
      "completion_date": "2020-05-19",
      "has_results": true,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02743377"
    },
    {
      "nct_id": "NCT03520153",
      "title": "Characterization of Diabetes Mellitus in Fibrous Dysplasia/McCune-Albright Syndrome",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "McCune-Albright Syndrome",
        "Fibrous Dysplasia",
        "Intraductal Papillary Mucinous Neoplasm",
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Hyperinsulinemic Euglycemic Clamp and 2H20",
          "type": "PROCEDURE"
        },
        {
          "name": "Hyperglycemic Clamp",
          "type": "PROCEDURE"
        },
        {
          "name": "Oral Glucose Tolerance Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2018-08-07",
      "completion_date": "2021-08",
      "has_results": false,
      "last_update_posted_date": "2019-09-04",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03520153"
    },
    {
      "nct_id": "NCT03827343",
      "title": "Retrospective Study of Immunotherapy Related Toxicities and Factors Impacting Outcomes in Children and Adults With Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Macrophage Activation Syndrome",
        "Primary Hemophagocytic Lymphohistiocytosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "1 Month to 120 Years"
      },
      "enrollment_count": 500,
      "start_date": "2019-01-23",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-07-23T09:47:32.554Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03827343"
    }
  ]
}