{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Multiple+Sclerosis%2C+Primary+Progressive",
    "query": {
      "condition": "Multiple Sclerosis, Primary Progressive"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 56,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Multiple+Sclerosis%2C+Primary+Progressive&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T02:55:08.682Z",
  "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": "NCT01854359",
      "title": "Idebenone for Primary Progressive Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis",
        "Primary Progressive Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Idebenone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2013-03-12",
      "completion_date": "2018-10-31",
      "has_results": true,
      "last_update_posted_date": "2021-05-19",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01854359"
    },
    {
      "nct_id": "NCT02253264",
      "title": "A Phase 1 Trial of Intrathecal Rituximab for Progressive Multiple Sclerosis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Primary Progressive Multiple Sclerosis",
        "Secondary Progressive Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Rituximab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2014-11",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2017-08-30",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02253264"
    },
    {
      "nct_id": "NCT01466114",
      "title": "Estriol Treatment in Multiple Sclerosis (MS): Effect on Cognition",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Relapsing-remitting Multiple Sclerosis",
        "Secondary-progressive Multiple Sclerosis",
        "Primary-progressive Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "estriol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Norethindrone",
          "type": "DRUG"
        },
        {
          "name": "Progestin Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 64,
      "start_date": "2011-10",
      "completion_date": "2022-04",
      "has_results": false,
      "last_update_posted_date": "2019-11-06",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Albuquerque, New Mexico + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01466114"
    },
    {
      "nct_id": "NCT01915433",
      "title": "Wahls Paleo Diet and Progressive Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Wahls Paleo Plus",
          "type": "OTHER"
        },
        {
          "name": "Wahls Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Terry L. Wahls",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 15,
      "start_date": "2013-07",
      "completion_date": "2016-11",
      "has_results": false,
      "last_update_posted_date": "2018-06-26",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01915433"
    },
    {
      "nct_id": "NCT07222956",
      "title": "A Study of Remibrutinib Using MR Imaging in Relapsing or Progressive MS",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis (MS) - Relapsing-remitting",
        "Multiple Sclerosis (MS) Secondary Progressive",
        "Multiple Sclerosis (MS) Primary Progressive"
      ],
      "interventions": [
        {
          "name": "Remibrutinib (Open Label)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Moein Amin",
      "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": 20,
      "start_date": "2026-06-30",
      "completion_date": "2030-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-20",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07222956"
    },
    {
      "nct_id": "NCT04548999",
      "title": "A Study to Evaluate the Efficacy, Safety and Pharmacokinetics (PK) of a Higher Dose of Ocrelizumab in Adults With Primary Progressive Multiple Sclerosis (PPMS)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Ocrelizumab",
          "type": "DRUG"
        },
        {
          "name": "Antihistamine",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 769,
      "start_date": "2020-12-03",
      "completion_date": "2027-09-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-30",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 24,
      "location_summary": "Homewood, Alabama • Phoenix, Arizona • Irvine, California + 21 more",
      "locations": [
        {
          "city": "Homewood",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04548999"
    },
    {
      "nct_id": "NCT07067463",
      "title": "A Study of Orelabrutinib in Patients With Primary Progressive Multiple Sclerosis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis (MS) Primary Progressive"
      ],
      "interventions": [
        {
          "name": "Orelabrutinib",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Zenas BioPharma (USA), LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 705,
      "start_date": "2026-03-23",
      "completion_date": "2030-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 11,
      "location_summary": "Pheonix, Arizona • Scottsdale, Arizona • West Hollywood, California + 8 more",
      "locations": [
        {
          "city": "Pheonix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "West Hollywood",
          "state": "California"
        },
        {
          "city": "Bradenton",
          "state": "Florida"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07067463"
    },
    {
      "nct_id": "NCT06841068",
      "title": "Intrathecal Amniotic Fluid Stem Cells for Progressive Multiple Sclerosis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis, Progressive"
      ],
      "interventions": [
        {
          "name": "Amniotic fluid or placental CD117 stem cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 0,
      "start_date": "2026-02",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06841068"
    },
    {
      "nct_id": "NCT05232825",
      "title": "A Phase III, Non-Inferiority, Randomized, Open-Label, Parallel Group, Multicenter Study To Investigate The Pharmacokinetics, Pharmacodynamics, Safety And Radiological And Clinical Effects Of Subcutaneous Ocrelizumab Versus Intravenous Ocrelizumab In Patients With Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis",
        "Primary Progressive Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Ocrelizumab IV",
          "type": "DRUG"
        },
        {
          "name": "Ocrelizumab SC",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone IV",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine IV",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone given orally",
          "type": "DRUG"
        },
        {
          "name": "Desloratadine given orally",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 236,
      "start_date": "2022-05-03",
      "completion_date": "2025-06-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-06",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 7,
      "location_summary": "Maitland, Florida • Tampa, Florida • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Owosso",
          "state": "Michigan"
        },
        {
          "city": "Dayton",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05232825"
    },
    {
      "nct_id": "NCT02549703",
      "title": "Mitochondrial Dysfunction and Disease Progression",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Clinically Isolated Syndrome",
        "Relapsing-Remitting Multiple Sclerosis",
        "Secondary Progressive Multiple Sclerosis",
        "Primary Progressive Multiple Sclerosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 47,
      "start_date": "2015-09",
      "completion_date": "2018-09-27",
      "has_results": false,
      "last_update_posted_date": "2019-02-20",
      "last_synced_at": "2026-06-11T02:55:08.682Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02549703"
    }
  ]
}