{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+THC",
    "query": {
      "intervention": "Placebo THC"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 225,
    "total_pages": 23,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+THC&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T07:14:48.515Z",
  "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": "NCT01394185",
      "title": "Effects of Dronabinol (Oral THC) on Cannabis Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Marijuana Smoking"
      ],
      "interventions": [
        {
          "name": "Dronabinol 120mg/day",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dronabinol 240mg/day",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 25,
      "start_date": "2011-02",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2017-08-03",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01394185"
    },
    {
      "nct_id": "NCT04130633",
      "title": "Behavioral Pharmacology of THC and Alpha-pinene",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "THC",
        "Alpha-pinene"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "THC",
          "type": "DRUG"
        },
        {
          "name": "Alpha-Pinene",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 33,
      "start_date": "2020-11-05",
      "completion_date": "2024-03-08",
      "has_results": true,
      "last_update_posted_date": "2025-05-22",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04130633"
    },
    {
      "nct_id": "NCT03471585",
      "title": "Effects of THC on Emotional Memory Retrieval",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "THC",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 24,
      "start_date": "2017-02-15",
      "completion_date": "2017-10-04",
      "has_results": false,
      "last_update_posted_date": "2019-05-30",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03471585"
    },
    {
      "nct_id": "NCT05974293",
      "title": "A Phase IIb Study of Nabiximols for Spasticity Due to Neuromyelitis Optica Spectrum Disorders",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "NMO Spectrum Disorder",
        "Spasticity, Muscle"
      ],
      "interventions": [
        {
          "name": "Nabiximols",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Michael, Levy M.D.,Ph.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2026-12-31",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-16",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05974293"
    },
    {
      "nct_id": "NCT04269993",
      "title": "Impact of Cannabis on Pain and Inflammation Among Patients With Rheumatoid or Psoriatic Arthritis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rheumatoid Arthritis",
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Cannabis: placebo and medium THC/medium CBD",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brown University",
      "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": 3,
      "start_date": "2022-05-18",
      "completion_date": "2023-07-31",
      "has_results": true,
      "last_update_posted_date": "2025-04-01",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04269993"
    },
    {
      "nct_id": "NCT01771731",
      "title": "Vaporized Cannabis for Chronic Pain Associated With Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Cannabis",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2014-08",
      "completion_date": "2017-05-19",
      "has_results": true,
      "last_update_posted_date": "2020-08-18",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01771731"
    },
    {
      "nct_id": "NCT06059677",
      "title": "Cannabis Consumption and Driving Impairment Assessment on a Closed Course",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cannabis Smoking",
        "Driving Impaired"
      ],
      "interventions": [
        {
          "name": "Active smoked cannabis",
          "type": "DRUG"
        },
        {
          "name": "Placebo smoked cannabis",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayliss J. Camp, PhD",
      "sponsor_class": "OTHER_GOV",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 300,
      "start_date": "2023-10-03",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-09-29",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06059677"
    },
    {
      "nct_id": "NCT00373399",
      "title": "Effects of Smoked Marijuana on Risk Taking and Decision Making Tasks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Marijuana Use Disorder"
      ],
      "interventions": [
        {
          "name": "Inactive Marijuana (0% THC)",
          "type": "DRUG"
        },
        {
          "name": "Low THC marijuana (1.8 %THC)",
          "type": "DRUG"
        },
        {
          "name": "High THC marijuana (3.9% THC)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "21 Years to 45 Years"
      },
      "enrollment_count": 36,
      "start_date": "2006-05",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2018-12-19",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00373399"
    },
    {
      "nct_id": "NCT04360044",
      "title": "Efficacy of Inhaled Cannabis for Acute Migraine Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Migraine",
        "Cannabis",
        "THC",
        "CBD"
      ],
      "interventions": [
        {
          "name": "THC ~5%",
          "type": "DRUG"
        },
        {
          "name": "CBD ~12%",
          "type": "DRUG"
        },
        {
          "name": "THC ~5% and CBD ~12%",
          "type": "DRUG"
        },
        {
          "name": "Sham Cannabis",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 92,
      "start_date": "2020-11-20",
      "completion_date": "2023-02-23",
      "has_results": false,
      "last_update_posted_date": "2023-02-28",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04360044"
    },
    {
      "nct_id": "NCT00708994",
      "title": "Cannabinoids, Neural Synchrony, and Information Processing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cannabis",
        "Psychotic Disorders"
      ],
      "interventions": [
        {
          "name": "THC",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 42,
      "start_date": "2008-02-25",
      "completion_date": "2012-12-03",
      "has_results": false,
      "last_update_posted_date": "2022-03-09",
      "last_synced_at": "2026-09-06T07:14:48.515Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00708994"
    }
  ]
}