{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ropinirole+Immediate+Release",
    "query": {
      "intervention": "Ropinirole Immediate Release"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T08:46:56.026Z",
  "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": "NCT00144300",
      "title": "Ophthalmologic Safety Study of Pramipexole Immediate Release (IR) Versus Ropinirole in Early Parkinson's Disease (PD) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Mirapex",
          "type": "DRUG"
        },
        {
          "name": "Requip",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 246,
      "start_date": "2005-01",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2014-03-14",
      "last_synced_at": "2026-09-16T08:46:56.026Z",
      "location_count": 21,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Fountain Valley, California + 15 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00144300"
    },
    {
      "nct_id": "NCT00256854",
      "title": "Converting From Ropinirole Immediate Release (IR) To Ropinirole Controlled-Release for RLS (Restless Legs Syndrome)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Restless Legs Syndrome",
        "Restless Legs Syndrome (RLS)"
      ],
      "interventions": [
        {
          "name": "Ropinirole IR 1 mg",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole IR 2 mg",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole IR 1 mg Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole IR 2 mg Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole CR 2 mg",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole CR 3 mg",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole CR 2 mg Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole CR 3 mg Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 135,
      "start_date": "2005-11-14",
      "completion_date": "2006-09-21",
      "has_results": true,
      "last_update_posted_date": "2019-03-15",
      "last_synced_at": "2026-09-16T08:46:56.026Z",
      "location_count": 30,
      "location_summary": "Laguna Hills, California • Oxnard, California • Pasadena, California + 27 more",
      "locations": [
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Oxnard",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Reseda",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00256854"
    },
    {
      "nct_id": "NCT03250117",
      "title": "Relative Bioavailability Study of Ropinirole Implants in Parkinson's Patients on L-Dopa Switched From Oral Ropinirole",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Ropinirole oral product",
          "type": "DRUG"
        },
        {
          "name": "Ropinirole Implant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Titan Pharmaceuticals",
      "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": 6,
      "start_date": "2017-10-10",
      "completion_date": "2018-05-22",
      "has_results": true,
      "last_update_posted_date": "2023-05-06",
      "last_synced_at": "2026-09-16T08:46:56.026Z",
      "location_count": 3,
      "location_summary": "Orlando, Florida • Farmington Hills, Michigan • Kirkland, Washington",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Farmington Hills",
          "state": "Michigan"
        },
        {
          "city": "Kirkland",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03250117"
    },
    {
      "nct_id": "NCT00140712",
      "title": "Ropinirole Tablets In Young Patients With Restless Legs Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Restless Legs Syndrome"
      ],
      "interventions": [
        {
          "name": "Ropinirole Immediate Release",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 9,
      "start_date": "2005-06-10",
      "completion_date": "2008-02-28",
      "has_results": false,
      "last_update_posted_date": "2017-09-11",
      "last_synced_at": "2026-09-16T08:46:56.026Z",
      "location_count": 7,
      "location_summary": "Washington D.C., District of Columbia • Macon, Georgia • Chicago, Illinois + 4 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Macon",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00140712"
    },
    {
      "nct_id": "NCT00314860",
      "title": "RLS In Adults: Comparing Immediate Release Formulation With Extended Release Formulation Of Ropinirole",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Restless Legs Syndrome",
        "Restless Legs Syndrome (RLS)"
      ],
      "interventions": [
        {
          "name": "ropinirole Extended Release (XR)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 568,
      "start_date": "2006-02",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2016-10-18",
      "last_synced_at": "2026-09-16T08:46:56.026Z",
      "location_count": 28,
      "location_summary": "Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00314860"
    }
  ]
}