{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Long-Term+Follow-Up+of+Patients+who+Received+Placebo",
    "query": {
      "intervention": "Long-Term Follow-Up of Patients who Received Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T18:09:30.263Z",
  "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": "NCT03961204",
      "title": "Long-Term Outcomes and Durability of Effect Following Treatment With Cladribine Tablets for MS (CLASSIC-MS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis (MS)"
      ],
      "interventions": [
        {
          "name": "Data Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "EMD Serono Research & Development Institute, Inc.",
      "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": 662,
      "start_date": "2019-08-15",
      "completion_date": "2021-05-13",
      "has_results": true,
      "last_update_posted_date": "2023-10-31",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 7,
      "location_summary": "Atlanta, Georgia • Chicago, Illinois • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Latham",
          "state": "New York"
        },
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03961204"
    },
    {
      "nct_id": "NCT04055090",
      "title": "Extension of Phase 3 Gene Therapy for Painful Diabetic Neuropathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Painful Diabetic Neuropathy",
        "Diabetic Neuropathy, Painful"
      ],
      "interventions": [
        {
          "name": "Long-Term Follow-Up of Patients who Received Engensis (VM202)",
          "type": "GENETIC"
        },
        {
          "name": "Long-Term Follow-Up of Patients who Received Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "DRUG"
      ],
      "sponsor": "Helixmith Co., Ltd.",
      "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": 101,
      "start_date": "2019-02-04",
      "completion_date": "2019-07-24",
      "has_results": true,
      "last_update_posted_date": "2025-10-09",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 14,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Sacramento, California + 11 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04055090"
    },
    {
      "nct_id": "NCT02573467",
      "title": "An Extension Study of the Efficacy, Safety and Tolerability of BYM338 (Bimagrumab) in Patients With Sporadic Inclusion Body Myositis Who Previously Participated in the Core Study CBYM338B2203",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sporadic Inclusion Body Myositis"
      ],
      "interventions": [
        {
          "name": "Bimagrumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "36 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "36 Years and older"
      },
      "enrollment_count": 211,
      "start_date": "2015-11-02",
      "completion_date": "2017-02-13",
      "has_results": true,
      "last_update_posted_date": "2018-03-13",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • Orange, California • Sacramento, California + 8 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02573467"
    },
    {
      "nct_id": "NCT03842969",
      "title": "An Open-Label Extension Study to Evaluate Long-Term Safety and Tolerability of RO7234292 (RG6042) in Huntington's Disease Participants Who Participated in Prior Roche and Genentech Sponsored Studies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Huntington Disease"
      ],
      "interventions": [
        {
          "name": "RO7234292 (RG6042)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "25 Years and older"
      },
      "enrollment_count": 236,
      "start_date": "2019-04-23",
      "completion_date": "2022-03-30",
      "has_results": true,
      "last_update_posted_date": "2023-08-31",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • La Jolla, California • Palo Alto, California + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03842969"
    },
    {
      "nct_id": "NCT02349295",
      "title": "A Study of Ixekizumab (LY2439821) in Participants With Active Psoriatic Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ixekizumab 80 mg Q4W",
          "type": "DRUG"
        },
        {
          "name": "Ixekizumab 80 mg Q2W",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 363,
      "start_date": "2014-12-31",
      "completion_date": "2019-06-26",
      "has_results": true,
      "last_update_posted_date": "2020-07-01",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 59,
      "location_summary": "Birmingham, Alabama • Glendale, Arizona • Mesa, Arizona + 50 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02349295"
    },
    {
      "nct_id": "NCT02510261",
      "title": "The Study of an Investigational Drug, Patisiran (ALN-TTR02), for the Treatment of Transthyretin (TTR)-Mediated Amyloidosis in Participants Who Have Already Been Treated With ALN-TTR02 (Patisiran)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Amyloidosis"
      ],
      "interventions": [
        {
          "name": "Patisiran",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alnylam Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 211,
      "start_date": "2015-07-16",
      "completion_date": "2022-11-23",
      "has_results": true,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-10-04T18:09:30.263Z",
      "location_count": 14,
      "location_summary": "La Mesa, California • Aurora, Colorado • Jacksonville, Florida + 10 more",
      "locations": [
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02510261"
    }
  ]
}