{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Comparator+Challenge&page=2",
    "query": {
      "intervention": "Placebo Comparator Challenge",
      "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+Comparator+Challenge&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T15:05:27.716Z",
  "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": "NCT06615557",
      "title": "Fasedienol Nasal Spray for the Acute Treatment of Anxiety in Adults With Social Anxiety Disorder (PALISADE-4)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Social Anxiety Disorder (SAD)"
      ],
      "interventions": [
        {
          "name": "Fasedienol Nasal Spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo Nasal Spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VistaGen Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 238,
      "start_date": "2024-09-16",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 26,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Bellflower, California + 21 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06615557"
    },
    {
      "nct_id": "NCT03158831",
      "title": "Drug Challenges Without Prior Skin Testing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Hypersensitivity",
        "Penicillin Allergy",
        "Antibiotic Allergy"
      ],
      "interventions": [
        {
          "name": "Placebo-Controlled Graded Drug Challenge",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 166,
      "start_date": "2016-01-13",
      "completion_date": "2021-10-01",
      "has_results": false,
      "last_update_posted_date": "2021-11-16",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03158831"
    },
    {
      "nct_id": "NCT03112577",
      "title": "Study of REGN3500 and Dupilumab in Patients With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Asthma, Allergic"
      ],
      "interventions": [
        {
          "name": "REGN3500",
          "type": "DRUG"
        },
        {
          "name": "Dupilumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone propionate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 32,
      "start_date": "2017-06-15",
      "completion_date": "2019-12-09",
      "has_results": false,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Cypress, California",
      "locations": [
        {
          "city": "Cypress",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03112577"
    },
    {
      "nct_id": "NCT03142919",
      "title": "Lipopolysaccharide (LPS) Challenge in Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Lipopolysaccharide",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Laureate Institute for Brain Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 64,
      "start_date": "2017-09-07",
      "completion_date": "2020-12-01",
      "has_results": true,
      "last_update_posted_date": "2025-07-02",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03142919"
    },
    {
      "nct_id": "NCT01965600",
      "title": "A Study To Evaluate The Safety And Effects On The Body Of An Investigational Drug Using An Endotoxin-Induced Inflammatory Response Model",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "PF-06282999",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "LPS",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 23,
      "start_date": "2014-03",
      "completion_date": "2015-02",
      "has_results": true,
      "last_update_posted_date": "2016-08-02",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01965600"
    },
    {
      "nct_id": "NCT02766322",
      "title": "Alcohol and Bariatric Surgery",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Oral Alcohol challenge test Alcohol visit first",
          "type": "OTHER"
        },
        {
          "name": "Oral Alcohol challenge test Placebo visit first",
          "type": "OTHER"
        },
        {
          "name": "Intravenous Alcohol Challenge Test (Clamp)",
          "type": "OTHER"
        },
        {
          "name": "Intravenous Alcohol Self-administration Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "64 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 64 Years · Female only"
      },
      "enrollment_count": 54,
      "start_date": "2016-03",
      "completion_date": "2022-05-25",
      "has_results": false,
      "last_update_posted_date": "2025-03-11",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02766322"
    },
    {
      "nct_id": "NCT05027919",
      "title": "Assessing a Clinically-meaningful Opioid Withdrawal Phenotype",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Withdrawal",
        "Opioid Use Disorder",
        "Opioid Craving"
      ],
      "interventions": [
        {
          "name": "Hydromorphone",
          "type": "DRUG"
        },
        {
          "name": "Naloxone + lofexidine pretreatment",
          "type": "DRUG"
        },
        {
          "name": "Naloxone + placebo pretreatment",
          "type": "DRUG"
        },
        {
          "name": "Lofexidine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "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": 60,
      "start_date": "2021-12-01",
      "completion_date": "2027-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05027919"
    },
    {
      "nct_id": "NCT00118729",
      "title": "Study In Adolescent And Adult Subjects 12 Years Of Age And Older With Seasonal Allergic Rhinitis To Assess Onset of Action",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Rhinitis, Allergic, Seasonal"
      ],
      "interventions": [
        {
          "name": "GW685698X Aqueous Nasal Spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 380,
      "start_date": "2005-04",
      "completion_date": "2005-08",
      "has_results": false,
      "last_update_posted_date": "2016-09-15",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Woodstock, Georgia",
      "locations": [
        {
          "city": "Woodstock",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00118729"
    },
    {
      "nct_id": "NCT02688270",
      "title": "Efficacy and Safety of Vascana® in Subjects With Secondary Raynaud's Phenomenon",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Raynaud's Phenomenon Secondary to Connective Tissue Disease"
      ],
      "interventions": [
        {
          "name": "Vascana (0.9% nitroglycerin cream)",
          "type": "DRUG"
        },
        {
          "name": "Vehicle Cream (placebo)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Covis Pharma S.à.r.l.",
      "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": 65,
      "start_date": "2016-06",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2022-11-02",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Multiple Locations, Pennsylvania",
      "locations": [
        {
          "city": "Multiple Locations",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02688270"
    },
    {
      "nct_id": "NCT01597375",
      "title": "Therapeutic Control of Aspirin-Exacerbated Respiratory Disease (Aspirin)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma, Aspirin-Induced",
        "Aspirin Exacerbated Asthma"
      ],
      "interventions": [
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Prasugrel Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Elliot Israel, MD",
      "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": 46,
      "start_date": "2012-08-31",
      "completion_date": "2016-12-14",
      "has_results": true,
      "last_update_posted_date": "2019-09-19",
      "last_synced_at": "2026-09-25T15:05:27.716Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01597375"
    }
  ]
}