{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+4-weeks&page=2",
    "query": {
      "intervention": "Placebo 4-weeks",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+4-weeks&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T08:08:50.329Z",
  "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": "NCT01443858",
      "title": "Meclizine as a Potential Smoking Cessation Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Meclizine",
          "type": "DRUG"
        },
        {
          "name": "Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "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": 146,
      "start_date": "2011-08",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2014-08-01",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 4,
      "location_summary": "Charlotte, North Carolina • Durham, North Carolina • Raleigh, North Carolina + 1 more",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01443858"
    },
    {
      "nct_id": "NCT04205136",
      "title": "Spironolactone to Improve Apnea and Cardiovascular Markers in Obstructive Sleep Apnea Patients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-03",
      "completion_date": "2023-04",
      "has_results": false,
      "last_update_posted_date": "2022-04-19",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04205136"
    },
    {
      "nct_id": "NCT06047444",
      "title": "A Study to Evaluate the Effectiveness and Safety of Dysport® for the Prevention of Chronic Migraine in Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Migraine"
      ],
      "interventions": [
        {
          "name": "Botulinum toxin type A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Ipsen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 759,
      "start_date": "2023-10-12",
      "completion_date": "2026-11-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 72,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 61 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Colton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06047444"
    },
    {
      "nct_id": "NCT01392963",
      "title": "The Treatment of Depression With Botulinum Type A Toxin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "botulinum toxin type A neurotoxin complex",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Seton Healthcare Family",
      "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": 30,
      "start_date": "2011-07",
      "completion_date": "2013-06",
      "has_results": true,
      "last_update_posted_date": "2018-07-26",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01392963"
    },
    {
      "nct_id": "NCT05774184",
      "title": "A Study of CDX-0159 in Patients With Eosinophilic Esophagitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Eosinophilic Esophagitis"
      ],
      "interventions": [
        {
          "name": "barzolvolimab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Celldex Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 86,
      "start_date": "2023-06-01",
      "completion_date": "2026-01-23",
      "has_results": false,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 24,
      "location_summary": "Birmingham, Alabama • Scottsdale, Arizona • Sun City, Arizona + 20 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Chula Vista",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05774184"
    },
    {
      "nct_id": "NCT01672255",
      "title": "Hypoglycemia Associated Autonomic Failure in Type 1 Diabetes Mellitus (DM)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Type 1 Diabetes",
        "Hypoglycemia Associated Autonomic Failure"
      ],
      "interventions": [
        {
          "name": "Fluoxetine",
          "type": "DRUG"
        },
        {
          "name": "Placebo control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 64,
      "start_date": "2012-10",
      "completion_date": "2025-05",
      "has_results": false,
      "last_update_posted_date": "2025-10-06",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01672255"
    },
    {
      "nct_id": "NCT05357040",
      "title": "Antidepressant Effects of Nitrous Oxide",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Major Depressive Disorder",
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Nitrous oxide gas for inhalation",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2021-06-30",
      "completion_date": "2026-02-27",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05357040"
    },
    {
      "nct_id": "NCT04079010",
      "title": "The Effect of Blood Flow Restriction With and Without Arginine on Physical Performance and Growth Hormone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Flow Restriction",
        "Growth Hormone",
        "Strength Outcomes",
        "Arginine"
      ],
      "interventions": [
        {
          "name": "BFR",
          "type": "PROCEDURE"
        },
        {
          "name": "Arginine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Pill",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Mary Hardin-Baylor",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 25 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2019-09-04",
      "completion_date": "2019-11-25",
      "has_results": false,
      "last_update_posted_date": "2020-04-02",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 1,
      "location_summary": "Belton, Texas",
      "locations": [
        {
          "city": "Belton",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04079010"
    },
    {
      "nct_id": "NCT06920043",
      "title": "A Study of Efimosfermin Alfa in Participants With Biopsy-confirmed Cirrhosis (Compensated) Due to MASH",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metabolic Dysfunction-Associated Steatohepatitis",
        "Non-alcoholic Fatty Liver Disease"
      ],
      "interventions": [
        {
          "name": "Efimosfermin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "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": 42,
      "start_date": "2025-04-09",
      "completion_date": "2028-07-10",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 28,
      "location_summary": "Chandler, Arizona • Mesa, Arizona • Tucson, Arizona + 22 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06920043"
    },
    {
      "nct_id": "NCT00570258",
      "title": "Randomized, Double Blind Multicenter Phase II Study of Time to Progression on Fulvestrant in Combination With Erlotinib or Placebo in Hormone Receptor-Positive Metastatic Breast Cancer (MBC) Subjects Who Progressed on First Line Hormonal Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "erlotinib",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2006-09",
      "completion_date": "2017-12",
      "has_results": true,
      "last_update_posted_date": "2021-03-30",
      "last_synced_at": "2026-09-26T08:08:50.329Z",
      "location_count": 6,
      "location_summary": "Jonesboro, Arkansas • Little Rock, Arkansas • Springdale, Arkansas + 3 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00570258"
    }
  ]
}