{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=levodopa&page=4",
    "query": {
      "intervention": "levodopa",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 253,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=levodopa&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=levodopa&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T09:01:46.507Z",
  "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": "NCT00314288",
      "title": "Sarizotan in Parkinson Patients With L-dopa-induced Dyskinesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Dyskinesia"
      ],
      "interventions": [
        {
          "name": "Sarizotan HCl",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 360,
      "start_date": "2002-07",
      "completion_date": "2003-07",
      "has_results": false,
      "last_update_posted_date": "2017-01-23",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 17,
      "location_summary": "Fountain Valley, California • Sunnyvale, California • Miami, Florida + 14 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Sunnyvale",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00314288"
    },
    {
      "nct_id": "NCT02125825",
      "title": "Ambulatory Parkinson's Disease Dyskinesia Monitor for Drug Therapy Titration",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Great Lakes NeuroTechnologies Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2014-07",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2016-01-12",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Rochester, New York",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02125825"
    },
    {
      "nct_id": "NCT00203177",
      "title": "Rasagiline in Advanced Parkinson's Disease Patients With Motor Fluctuations Treated With Levodopa/Carbidopa Therapy.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "rasagiline mesylate",
          "type": "DRUG"
        },
        {
          "name": "rasagiline mesylate 1.0 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Branded Pharmaceutical Products R&D, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 254,
      "start_date": "2001-10",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2010-03-09",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 7,
      "location_summary": "Fresno, California • Atlanta, Georgia • Chicago, Illinois + 4 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00203177"
    },
    {
      "nct_id": "NCT01092065",
      "title": "Efficacy and Safety of AFQ056 When Combined With Increased Doses of L-dopa in Parkinson's Disease Patients With Moderate-severe L-dopa Induced Dyskinesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "AFQ056 with L-dopa",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "30 Years to 80 Years"
      },
      "enrollment_count": 23,
      "start_date": "2010-03",
      "completion_date": "2011-07",
      "has_results": false,
      "last_update_posted_date": "2020-12-23",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 4,
      "location_summary": "Sunnyvale, California • Englewood, Colorado • Indianapolis, Indiana + 1 more",
      "locations": [
        {
          "city": "Sunnyvale",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01092065"
    },
    {
      "nct_id": "NCT02153632",
      "title": "Efficacy and Safety of Amantadine Hydrogen Chloride (HCl) ER Tablets in Parkinson's Disease Subjects With LID",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Levodopa Induced Dyskinesia (LID)"
      ],
      "interventions": [
        {
          "name": "amantadine HCl ER",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Adamas Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 135,
      "start_date": "2014-07-30",
      "completion_date": "2016-05-20",
      "has_results": true,
      "last_update_posted_date": "2022-02-16",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 24,
      "location_summary": "Tucson, Arizona • Fountain Valley, California • Irvine, California + 21 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Ventura",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02153632"
    },
    {
      "nct_id": "NCT02136914",
      "title": "ADS-5102 for the Treatment of Levodopa Induced Dyskinesia (EASE LID Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dyskinesia",
        "Levodopa Induced Dyskinesia (LID)",
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "ADS-5102",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Adamas Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 126,
      "start_date": "2014-05",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2018-02-06",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 43,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 37 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02136914"
    },
    {
      "nct_id": "NCT00219284",
      "title": "Effects of Carbidopa/Levodopa/Entacapone on Motor Function and Quality of Life in Patients With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Parkinson's Disease With End of Dose Wearing Off"
      ],
      "interventions": [
        {
          "name": "Carbidopa/levodopa/entacapone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 359,
      "start_date": "2005-01",
      "completion_date": "2008-07",
      "has_results": true,
      "last_update_posted_date": "2017-03-30",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 41,
      "location_summary": "Phoenix, Arizona • Fullerton, California • Irvine, California + 38 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00219284"
    },
    {
      "nct_id": "NCT05708274",
      "title": "Pharmacological Agents for Chronic Spinal Cord Injury (SCI)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "CPH + hand training",
          "type": "DRUG"
        },
        {
          "name": "CD-LD + hand training",
          "type": "DRUG"
        },
        {
          "name": "ATX + hand training",
          "type": "DRUG"
        },
        {
          "name": "Placebo + hand training",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bronx VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 25,
      "start_date": "2023-01-20",
      "completion_date": "2025-10-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-08",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05708274"
    },
    {
      "nct_id": "NCT00467597",
      "title": "Developing Objective Measures of Levodopa Induced Dyskinesia: (Study 1)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dyskinesias",
        "Movement Disorders",
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Levodopa (delivered intravenously)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2006-04",
      "completion_date": "2013-10",
      "has_results": true,
      "last_update_posted_date": "2014-11-26",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00467597"
    },
    {
      "nct_id": "NCT02439125",
      "title": "A Study of Efficacy and Safety of Eltoprazine HCl for Treating Levodopa-induced Dyskinesia in Parkinson's Disease Patients",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Dyskinesia"
      ],
      "interventions": [
        {
          "name": "Eltoprazine HCl",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amarantus BioScience Holdings, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 60,
      "start_date": "2015-05",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2016-04-22",
      "last_synced_at": "2026-10-25T09:01:46.507Z",
      "location_count": 1,
      "location_summary": "Boca Raton, Florida",
      "locations": [
        {
          "city": "Boca Raton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02439125"
    }
  ]
}