{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Stiff+Person+Syndrome",
    "query": {
      "condition": "Stiff Person Syndrome"
    },
    "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?condition=Stiff+Person+Syndrome&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-21T22:54:47.857Z",
  "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": "NCT06528392",
      "title": "Efgartigimod for Stiff Person Syndrome (ESPS)",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stiff-Person Syndrome"
      ],
      "interventions": [
        {
          "name": "Efgartigimod",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 10,
      "start_date": "2025-04-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-11",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06528392"
    },
    {
      "nct_id": "NCT00030940",
      "title": "Cause, Development, and Progression of Stiff-Person Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stiff-Person Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "25 Years to 80 Years"
      },
      "enrollment_count": 40,
      "start_date": "2002-02-11",
      "completion_date": "2007-12-28",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00030940"
    },
    {
      "nct_id": "NCT00716066",
      "title": "Autologous Stem Cell Transplant for Neurologic Autoimmune Diseases",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Autoimmune Disease",
        "Neurologic Autoimmune Disease",
        "Autologous Transplant Autoimmune",
        "Multiple Sclerosis Transplant",
        "MS Stem Cell Transplant",
        "Multiple Sclerosis Stem Cell Transplant",
        "Stiff Person Syndrome",
        "HCT for Neurologic Autoimmune Disorders",
        "CIDP Transplant",
        "Myasthenia Gravis Transplant",
        "Autoimmune Nervous System Disorder",
        "Central Nervous System Vasculitis",
        "Cerebellar Degeneration",
        "Chronic Inflammatory Demyelinating Polyneuropathy",
        "Lambert Eaton Myasthenic Syndrome",
        "Myasthenia Gravis",
        "Neuromyelitis Optica",
        "Opsoclonus Myoclonus Syndrome",
        "Rasmussen Subacute Encephalitis"
      ],
      "interventions": [
        {
          "name": "Anti-Thymocyte Globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Autologous Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Carmustine",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Syngeneic Bone Marrow Transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "71 Years",
        "sex": "ALL",
        "summary": "Up to 71 Years"
      },
      "enrollment_count": 53,
      "start_date": "2008-06",
      "completion_date": "2030-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • Seattle, Washington",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00716066"
    },
    {
      "nct_id": "NCT03749096",
      "title": "Randomized Placebo Controlled Trial of IVIg in Glycine Receptor Antibody Positive Stiff-person Syndrome",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stiff-Person Syndrome"
      ],
      "interventions": [
        {
          "name": "Intravenous Immunoglobulins, Human",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2018-12-07",
      "completion_date": "2019-04-26",
      "has_results": false,
      "last_update_posted_date": "2019-06-13",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03749096"
    },
    {
      "nct_id": "NCT02282514",
      "title": "Stem Cell Transplantation for Stiff Person Syndrome (SPS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Stiff-Person Syndrome"
      ],
      "interventions": [
        {
          "name": "Autologous Hematopoietic Stem Cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Mesna",
          "type": "DRUG"
        },
        {
          "name": "rATG",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "G-CSF",
          "type": "DRUG"
        },
        {
          "name": "Rituxan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 23,
      "start_date": "2014-10",
      "completion_date": "2019-08-30",
      "has_results": true,
      "last_update_posted_date": "2021-01-27",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02282514"
    },
    {
      "nct_id": "NCT07403188",
      "title": "A Long-Term Follow-Up Study for Participants Previously Treated With KYV-101",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractory Lupus Nephritis",
        "Myasthaenia Gravis",
        "Stiff Person Syndrome",
        "Rheumatoid Arthritis (RA)",
        "Multiple Sclerosis",
        "Dermatomyositis",
        "Systemic Sclerosis (SSc)"
      ],
      "interventions": [
        {
          "name": "KYV-101",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyverna Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2025-11-24",
      "completion_date": "2041-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07403188"
    },
    {
      "nct_id": "NCT06242678",
      "title": "Evaluating Spinal Cord Stimulation for Stiff Person Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stiff-Person Syndrome"
      ],
      "interventions": [
        {
          "name": "SCS trial lead",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2024-11-01",
      "completion_date": "2025-10-27",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06242678"
    },
    {
      "nct_id": "NCT06375993",
      "title": "A Phase 1 Study of Prulacabtagene Leucel (Prula-cel, Formerly ADI-001) in Autoimmune Disease",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lupus Nephritis",
        "Autoimmune Diseases",
        "Systemic Sclerosis (SSc)",
        "Systemic Lupus Erythematosus (SLE)",
        "ANCA-Associated Vasculitis (AAV)",
        "Idiopathic Inflammatory Myopathies",
        "Stiff Person Syndrome"
      ],
      "interventions": [
        {
          "name": "ADI-001",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Adicet Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 180,
      "start_date": "2024-11-10",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 2,
      "location_summary": "Redwood City, California • Buffalo, New York",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06375993"
    },
    {
      "nct_id": "NCT00091897",
      "title": "Rituximab to Treat Stiff Person Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stiff Person Syndrome"
      ],
      "interventions": [
        {
          "name": "Rituximab",
          "type": "DRUG"
        },
        {
          "name": "rituximab or placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "25 Years to 80 Years"
      },
      "enrollment_count": 24,
      "start_date": "2004-09",
      "completion_date": "2009-05",
      "has_results": false,
      "last_update_posted_date": "2011-08-31",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00091897"
    },
    {
      "nct_id": "NCT06588491",
      "title": "KYSA-8: A Study of Anti-CD19 Chimeric Antigen Receptor T-Cell (CD19 CAR T) Therapy, in Subjects With Treatment Refractory Stiff Person Syndrome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stiff-Person Syndrome",
        "SPS"
      ],
      "interventions": [
        {
          "name": "Standard lymphodepletion regimen",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Kyverna Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 25,
      "start_date": "2024-09-25",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-22",
      "last_synced_at": "2026-05-21T22:54:47.857Z",
      "location_count": 3,
      "location_summary": "Aurora, Colorado • Rochester, Minnesota • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06588491"
    }
  ]
}