{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?page=9&q=levodopa",
    "query": {
      "q": "levodopa",
      "page": 9
    },
    "page_size": 10
  },
  "pagination": {
    "page": 9,
    "page_size": 10,
    "total_count": 343,
    "total_pages": 35,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=10&q=levodopa&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=8&q=levodopa&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T23:44:39.418Z",
  "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": "NCT00360568",
      "title": "Safety/Efficacy Study of Levodopa-Carbidopa Intestinal Gel in Parkinson's Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dyskinesias",
        "Parkinson's Disease",
        "Severe Motor Fluctuations"
      ],
      "interventions": [
        {
          "name": "Levodopa-carbidopa intestinal gel",
          "type": "DRUG"
        },
        {
          "name": "CADD-Legacy® 1400 ambulatory infusion pump",
          "type": "DEVICE"
        },
        {
          "name": "PEG tube",
          "type": "DEVICE"
        },
        {
          "name": "J-tube",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "AbbVie (prior sponsor, Abbott)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 62,
      "start_date": "2009-06",
      "completion_date": "2012-10",
      "has_results": true,
      "last_update_posted_date": "2015-01-16",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 16,
      "location_summary": "Birmingham, Alabama • Fountain Valley, California • Los Angeles, California + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00360568"
    },
    {
      "nct_id": "NCT00880620",
      "title": "A Study To Evaluate The Safety And Efficacy Of IPX066 In Subjects With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "IPX066 95 mg LD",
          "type": "DRUG"
        },
        {
          "name": "IPX066 145 mg LD",
          "type": "DRUG"
        },
        {
          "name": "IPX066 195 mg LD",
          "type": "DRUG"
        },
        {
          "name": "IPX066 245 mg LD",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Impax Laboratories, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 381,
      "start_date": "2009-04",
      "completion_date": "2010-11",
      "has_results": true,
      "last_update_posted_date": "2019-10-29",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 27,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Garden Grove, California + 22 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00880620"
    },
    {
      "nct_id": "NCT05094050",
      "title": "Study to Assess How ABBV-951 is Absorbed When Administered at Different Subcutaneous Sites of Adult Participants With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "ABBV-951",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2022-01-18",
      "completion_date": "2023-03-17",
      "has_results": false,
      "last_update_posted_date": "2023-03-24",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 10,
      "location_summary": "Aurora, Colorado • Washington D.C., District of Columbia • Chicago, Illinois + 7 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        },
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05094050"
    },
    {
      "nct_id": "NCT00165789",
      "title": "A Study to Explore the Safety And Tolerability of Doses of E2007 Up to a Maximum of 8 mg In Patients With Parkinson's Disease Who Experience End-of-Dose Wearing Off Motor Fluctuations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "E2007",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2005-09",
      "completion_date": "2006-09",
      "has_results": true,
      "last_update_posted_date": "2015-06-02",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • Oxnard, California • New Haven, Connecticut + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Oxnard",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Delray Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00165789"
    },
    {
      "nct_id": "NCT02706977",
      "title": "The Effect of Dopamine on Diabetic Retinopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Low Dose Sinemet CR",
          "type": "DRUG"
        },
        {
          "name": "High Dose Sinemet CR",
          "type": "DRUG"
        },
        {
          "name": "RETeval Electroretinogram (ERG) Testing",
          "type": "DEVICE"
        },
        {
          "name": "Contrast Sensitivity Testing",
          "type": "OTHER"
        },
        {
          "name": "Visual Acuity Testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 60,
      "start_date": "2016-01",
      "completion_date": "2019-08-15",
      "has_results": false,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02706977"
    },
    {
      "nct_id": "NCT00829439",
      "title": "Study on Tolerability of Levodopa/Carbidopa in Children With Angelman Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Angelman Syndrome"
      ],
      "interventions": [
        {
          "name": "Levodopa/Carbidopa (4:1)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "4 Years to 12 Years"
      },
      "enrollment_count": 16,
      "start_date": "2009-01",
      "completion_date": "2010-06",
      "has_results": true,
      "last_update_posted_date": "2016-11-21",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00829439"
    },
    {
      "nct_id": "NCT02168842",
      "title": "Efficacy of Isradipine in Early Parkinson Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Isradipine",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for Isradipine)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 336,
      "start_date": "2014-11",
      "completion_date": "2018-11",
      "has_results": true,
      "last_update_posted_date": "2020-01-14",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 47,
      "location_summary": "Birmingham, Alabama • Sun City, Arizona • Fountain Valley, California + 40 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02168842"
    },
    {
      "nct_id": "NCT03000569",
      "title": "A Study to Evaluate SAGE-217 in Participants With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "SAGE-217",
          "type": "DRUG"
        },
        {
          "name": "Levodopa",
          "type": "DRUG"
        },
        {
          "name": "Antiparkinsonian Agent(s)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 29,
      "start_date": "2016-11-30",
      "completion_date": "2017-09-11",
      "has_results": true,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 11,
      "location_summary": "Panorama City, California • Jacksonville, Florida • Miami, Florida + 7 more",
      "locations": [
        {
          "city": "Panorama City",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03000569"
    },
    {
      "nct_id": "NCT00094601",
      "title": "Relationship of Dopamine to Cognitive Function in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "40 Years to 85 Years"
      },
      "enrollment_count": 75,
      "start_date": "2004-10-18",
      "completion_date": "2008-01-22",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00094601"
    },
    {
      "nct_id": "NCT01468012",
      "title": "Imaging the Neurobiology of Behavioral and Medication Treatment for Cocaine Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Cocaine Dependence"
      ],
      "interventions": [
        {
          "name": "levodopa carbidopa and entacapone (LCE)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 23,
      "start_date": "2014-07",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2018-05-22",
      "last_synced_at": "2026-10-13T23:44:39.418Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01468012"
    }
  ]
}