{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+%28placebo%29+group",
    "query": {
      "intervention": "Control (placebo) group"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5198,
    "total_pages": 520,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+%28placebo%29+group&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-11T22:12:32.844Z",
  "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": "NCT01747915",
      "title": "A Safety, Efficacy and Tolerability Trial of Pregabalin as Add-On Treatment in Pediatric and Adult Subjects With Primary Generalized Tonic-Clonic (i.e., Grand Mal) Seizures.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Generalized Tonic Clonic Seizures"
      ],
      "interventions": [
        {
          "name": "Pregabalin Dose Level 1",
          "type": "DRUG"
        },
        {
          "name": "Pregabalin Dose Level 2",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer's Upjohn has merged with Mylan to form Viatris Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "5 Years to 65 Years"
      },
      "enrollment_count": 219,
      "start_date": "2013-04-03",
      "completion_date": "2019-02-20",
      "has_results": true,
      "last_update_posted_date": "2021-01-20",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 12,
      "location_summary": "Loxahatchee Groves, Florida • Orlando, Florida • Port Charlotte, Florida + 6 more",
      "locations": [
        {
          "city": "Loxahatchee Groves",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Port Charlotte",
          "state": "Florida"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01747915"
    },
    {
      "nct_id": "NCT03182725",
      "title": "Effect of Ivabradine on Patients With Postural Orthostatic Tachycardia Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Ivabradine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 37,
      "start_date": "2018-02-06",
      "completion_date": "2020-05-08",
      "has_results": true,
      "last_update_posted_date": "2021-06-29",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03182725"
    },
    {
      "nct_id": "NCT02689713",
      "title": "Pilot Study to Compare Topical Voriconazole to Placebo as a Pain Reducing Agent",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain",
        "Thermal Injury",
        "Burns",
        "Hyperalgesia"
      ],
      "interventions": [
        {
          "name": "Voriconazole (topical)",
          "type": "DRUG"
        },
        {
          "name": "Topical Sterile Water Placebo Group",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kenneth Hargreaves",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 0,
      "start_date": "2018-06-15",
      "completion_date": "2018-11-14",
      "has_results": false,
      "last_update_posted_date": "2018-12-17",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02689713"
    },
    {
      "nct_id": "NCT03030248",
      "title": "Vancomycin for C Difficile NAAT+/EIA- Hematology Oncology Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clostridium Difficile Infection",
        "Hematologic Diseases",
        "Bone Marrow Transplant",
        "Oncologic Disorders"
      ],
      "interventions": [
        {
          "name": "Vancomycin Oral Capsule",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2018-06-01",
      "completion_date": "2020-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03030248"
    },
    {
      "nct_id": "NCT00953043",
      "title": "Lubiprostone, Colonic Motility and Sensation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "lubiprostone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Bowel preparation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "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": 60,
      "start_date": "2007-09",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2012-02-27",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00953043"
    },
    {
      "nct_id": "NCT04201106",
      "title": "A Neuroimaging Study of Open-label Placebo in Depressed Adolescents",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Open Label Placebo with Rationale",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Open Label Placebo without Rationale",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "13 Years to 18 Years"
      },
      "enrollment_count": 16,
      "start_date": "2020-05-14",
      "completion_date": "2022-04-28",
      "has_results": false,
      "last_update_posted_date": "2026-07-29",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04201106"
    },
    {
      "nct_id": "NCT01898884",
      "title": "Safety and Pharmacology Study of VP 20629 in Adults With Friedreich's Ataxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Friedreich's Ataxia"
      ],
      "interventions": [
        {
          "name": "VP 20629",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Shire",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 46,
      "start_date": "2013-08-13",
      "completion_date": "2015-06-18",
      "has_results": true,
      "last_update_posted_date": "2021-06-02",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Tampa, Florida • Atlanta, Georgia + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01898884"
    },
    {
      "nct_id": "NCT04126213",
      "title": "Study of Safety, Reactogenicity and Immunogenicity of GlaxoSmithKline's (GSK)Respiratory Syncytial Virus (RSV)Maternal Unadjuvanted Vaccine in Healthy Pregnant Women (Aged 18 to 40 Years) and Their Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "RSV MAT 60 µg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSV MAT 120 µg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 534,
      "start_date": "2019-11-05",
      "completion_date": "2021-05-14",
      "has_results": true,
      "last_update_posted_date": "2021-12-13",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Huntington Park, California • Los Angeles, California + 10 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Nampa",
          "state": "Idaho"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04126213"
    },
    {
      "nct_id": "NCT06670040",
      "title": "Theta Burst Stimulation for Refractory Depression in Autism Spectrum Disorder",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "ASD",
        "Autism Spectrum Disorder",
        "Autism",
        "Depression - Major Depressive Disorder",
        "MDD"
      ],
      "interventions": [
        {
          "name": "Transcranial Magnetic Stimulation",
          "type": "PROCEDURE"
        },
        {
          "name": "Transcranial Magnetic Stimulation Sham",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "13 Years to 26 Years"
      },
      "enrollment_count": 24,
      "start_date": "2024-09-16",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06670040"
    },
    {
      "nct_id": "NCT01838681",
      "title": "Brexpiprazole as Adjunctive Treatment in Patients With Major Depressive Disorder With an Inadequate Response to Antidepressant Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Brexpiprazole",
          "type": "DRUG"
        },
        {
          "name": "ADT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lundbeck A/S",
      "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": 1986,
      "start_date": "2013-06",
      "completion_date": "2016-06",
      "has_results": true,
      "last_update_posted_date": "2017-08-09",
      "last_synced_at": "2026-09-11T22:12:32.844Z",
      "location_count": 8,
      "location_summary": "Little Rock, Arkansas • Cerritos, California • Temecula, California + 4 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Temecula",
          "state": "California"
        },
        {
          "city": "Flowood",
          "state": "Mississippi"
        },
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01838681"
    }
  ]
}