{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parkinson%27s+Disease&page=17&q=levodopa",
    "query": {
      "q": "levodopa",
      "condition": "Parkinson's Disease",
      "page": 17
    },
    "page_size": 10
  },
  "pagination": {
    "page": 17,
    "page_size": 10,
    "total_count": 256,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parkinson%27s+Disease&page=18&q=levodopa&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Parkinson%27s+Disease&page=16&q=levodopa&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T08:25:49.876Z",
  "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": "NCT01399905",
      "title": "High and Low Dose Carbidopa Treatment of Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "carbidopa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "35 Years to 85 Years"
      },
      "enrollment_count": 14,
      "start_date": "2009-03",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2020-01-09",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01399905"
    },
    {
      "nct_id": "NCT01331122",
      "title": "Study to Assess Droxidopa in the Treatment of Freezing Of Gait Symptoms in Patients With Parkinson's Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Gait Disorders, Neurologic"
      ],
      "interventions": [
        {
          "name": "droxidopa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Chelsea Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2012-04",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2013-03-29",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "West Bloomfield, Michigan",
      "locations": [
        {
          "city": "West Bloomfield",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01331122"
    },
    {
      "nct_id": "NCT03007888",
      "title": "A Study to Assess the PK and Pharmacodynamics of IPX203 in Subjects With Advanced Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Sinemet",
          "type": "DRUG"
        },
        {
          "name": "IPX203",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Impax Laboratories, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "40 Years to 100 Years"
      },
      "enrollment_count": 28,
      "start_date": "2016-11-14",
      "completion_date": "2017-08-01",
      "has_results": true,
      "last_update_posted_date": "2022-06-06",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 11,
      "location_summary": "Little Rock, Arkansas • Boca Raton, Florida • Naples, Florida + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Naples",
          "state": "Florida"
        },
        {
          "city": "Port Charlotte",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03007888"
    },
    {
      "nct_id": "NCT04956939",
      "title": "Levodopa Response and Gut Microbiome in Patients With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Low dose levodopa",
          "type": "DRUG"
        },
        {
          "name": "High dose levodopa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 38,
      "start_date": "2018-07-17",
      "completion_date": "2021-03-31",
      "has_results": false,
      "last_update_posted_date": "2022-11-07",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04956939"
    },
    {
      "nct_id": "NCT04928287",
      "title": "Randomized, Double-Blind Clinical Trial for Parkinson's Disease (Early and Moderate)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "HB-adMSCs",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Hope Biosciences Research Foundation",
      "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": 24,
      "start_date": "2021-06-28",
      "completion_date": "2023-02-06",
      "has_results": true,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "Sugar Land, Texas",
      "locations": [
        {
          "city": "Sugar Land",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04928287"
    },
    {
      "nct_id": "NCT04295642",
      "title": "A 2-Part Trial of CVL-751 in Subjects With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "CVL-751",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cerevel Therapeutics, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "45 Years to 75 Years"
      },
      "enrollment_count": 24,
      "start_date": "2020-01-08",
      "completion_date": "2021-07-23",
      "has_results": false,
      "last_update_posted_date": "2021-08-31",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 2,
      "location_summary": "Long Beach, California • Atlanta, Georgia",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04295642"
    },
    {
      "nct_id": "NCT06295458",
      "title": "Gamma Sensory Flicker for Parkinson's Disease Patients With Freezing of Gait",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gait Disorders, Neurologic",
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "David Delight Plus Device",
          "type": "DEVICE"
        },
        {
          "name": "Sham Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 24,
      "start_date": "2024-07-08",
      "completion_date": "2026-05-04",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06295458"
    },
    {
      "nct_id": "NCT02549092",
      "title": "A Study to Examine the Effect of Levodopa-Carbidopa Intestinal Gel (LCIG) Therapy Relative to That of Optimized Medical Treatment (OMT) on Non-motor Symptoms (NMS) Associated With Advanced Parkinson's Disease (PD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Advanced Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Optimized Medical Treatment",
          "type": "DRUG"
        },
        {
          "name": "Levodopa-Carbidopa Intestinal Gel",
          "type": "DRUG"
        },
        {
          "name": "Nasojejunal (NJ) tube",
          "type": "DEVICE"
        },
        {
          "name": "Percutaneous endoscopic gastrostomy with a jejunal (PEG-J) tube",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "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": 89,
      "start_date": "2015-10-26",
      "completion_date": "2022-11-18",
      "has_results": true,
      "last_update_posted_date": "2023-11-28",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 8,
      "location_summary": "Fountain Valley, California • Boca Raton, Florida • Jacksonville, Florida + 5 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Port Charlotte",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02549092"
    },
    {
      "nct_id": "NCT06482268",
      "title": "Transplantation of Human iPS Cell-derived Dopaminergic Progenitors (CT1-DAP001) for Parkinson's Disease (Phase I/II)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "PD - Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Human induced pluripotent stem cell-derived dopaminergic progenitors (CT1-DAP001)",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 7,
      "start_date": "2024-06-01",
      "completion_date": "2028-05",
      "has_results": false,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06482268"
    },
    {
      "nct_id": "NCT02542696",
      "title": "Open-Label Phase 3 Study to Examine the Long-Term Safety, Tolerability and Efficacy of APL-130277 for the Acute Treatment of \"OFF\" Episodes in Patients With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "APL-130277",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma America, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 496,
      "start_date": "2015-08-31",
      "completion_date": "2022-11-08",
      "has_results": true,
      "last_update_posted_date": "2023-11-22",
      "last_synced_at": "2026-10-15T08:25:49.876Z",
      "location_count": 48,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 42 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02542696"
    }
  ]
}