{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbidopa&page=3",
    "query": {
      "intervention": "Carbidopa",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 136,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbidopa&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbidopa&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T10:52:35.784Z",
  "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": "NCT02339064",
      "title": "Infusion of Apomorphine: Long-term Safety Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Idiopathic Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "apomorphine infusion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "MDD US Operations, LLC a subsidiary of Supernus Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2015-02",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2025-06-19",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 18,
      "location_summary": "Phoenix, Arizona • Loma Linda, California • Los Angeles, California + 13 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02339064"
    },
    {
      "nct_id": "NCT01951105",
      "title": "Effect of L-dopa In Subacute Back Pain Population",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sub-acute Back Pain"
      ],
      "interventions": [
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Carbidopa/Levodopa",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2015-02-24",
      "completion_date": "2017-09-25",
      "has_results": true,
      "last_update_posted_date": "2021-03-24",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01951105"
    },
    {
      "nct_id": "NCT04246437",
      "title": "[18F]F-DOPA Imaging in Patients With Autonomic Failure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autonomic Failure",
        "Pure Autonomic Failure",
        "Parkinson Disease",
        "Multiple System Atrophy",
        "Dementia With Lewy Bodies"
      ],
      "interventions": [
        {
          "name": "[18F]FDOPA",
          "type": "DRUG"
        },
        {
          "name": "Carbidopa 200mg oral dose",
          "type": "DRUG"
        },
        {
          "name": "Entacapone 400mg oral dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Daniel Claassen",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2020-02-04",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04246437"
    },
    {
      "nct_id": "NCT02553265",
      "title": "Carbidopa for the Treatment of Excessive Blood Pressure Variability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Dysautonomia, Familial",
        "Baroreflex Failure Syndrome"
      ],
      "interventions": [
        {
          "name": "Carbidopa Low-Dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Carbidopa High-Dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "10 Years to 60 Years"
      },
      "enrollment_count": 22,
      "start_date": "2015-09",
      "completion_date": "2019-05-10",
      "has_results": true,
      "last_update_posted_date": "2022-02-09",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 2,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02553265"
    },
    {
      "nct_id": "NCT05463367",
      "title": "Project 1 Aim 2, Adaptations of the Brain in Chronic Pain With Opioid Exposure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Use",
        "Opioid Dependence",
        "Opioid-use Disorder",
        "Narcotic Use",
        "Back Pain",
        "Back Injuries",
        "Chronic Pain",
        "Chronic Low-back Pain",
        "Pain, Chronic",
        "Pain;Back Low;Chronic",
        "Pain, Back"
      ],
      "interventions": [
        {
          "name": "Carbidopa-Levodopa 25 Mg-100 Mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Naproxen 500 Mg",
          "type": "DRUG"
        },
        {
          "name": "Opioids",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-01-01",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463367"
    },
    {
      "nct_id": "NCT02633007",
      "title": "A Study of the Safety and Pharmacokinetics of Levodopa Following Administration of CVT 301 (Levodopa Inhalation Powder) in Adults With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "CVT-301 (levodopa inhalation powder)",
          "type": "DRUG"
        },
        {
          "name": "Carbidopa",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Acorda Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "25 Years to 65 Years"
      },
      "enrollment_count": 25,
      "start_date": "2015-12",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-06-13",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 3,
      "location_summary": "Daytona Beach, Florida • North Dartmouth, Massachusetts • Dallas, Texas",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        },
        {
          "city": "North Dartmouth",
          "state": "Massachusetts"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02633007"
    },
    {
      "nct_id": "NCT02615873",
      "title": "A Study of AP-CD/LD in Fluctuating Parkinson's Disease Patients Who Completed IN 11 004",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Accordion Pill™ Carbidopa/Levodopa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Intec Pharma Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "30 Years to 100 Years"
      },
      "enrollment_count": 460,
      "start_date": "2016-07",
      "completion_date": "2019-12",
      "has_results": false,
      "last_update_posted_date": "2018-08-14",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 37,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Sun City, Arizona + 33 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02615873"
    },
    {
      "nct_id": "NCT01351168",
      "title": "Use of Zolpidem in Parkinson's Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Levodopa",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem first dose",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem second dose",
          "type": "DRUG"
        },
        {
          "name": "sugar pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "30 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2012-12-03",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01351168"
    },
    {
      "nct_id": "NCT05471609",
      "title": "Sustained Release Oral Formulation for Treatment of Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "levodopa/carbidopa oral formulation A",
          "type": "DRUG"
        },
        {
          "name": "levodopa/carbidopa oral formulation B",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 6,
      "start_date": "2025-06-12",
      "completion_date": "2025-08-14",
      "has_results": false,
      "last_update_posted_date": "2026-06-25",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05471609"
    },
    {
      "nct_id": "NCT03591757",
      "title": "Short-term Effects of TOLCAPONE on Transthyretin Stability in Subjects With Leptomeningeal TTR Amyloidosis (ATTR)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Transthyretin Amyloidosis",
        "Amyloidosis, Leptomeningeal, Transthyretin-Related"
      ],
      "interventions": [
        {
          "name": "Tolcapone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2018-10-30",
      "completion_date": "2019-04-26",
      "has_results": false,
      "last_update_posted_date": "2019-06-14",
      "last_synced_at": "2026-10-17T10:52:35.784Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03591757"
    }
  ]
}