{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Choice+of+cannabis+product",
    "query": {
      "intervention": "Choice of cannabis product"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T10:27:22.854Z",
  "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": "NCT04429568",
      "title": "THC Crossover Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "THC",
        "Cannabis",
        "Cannabis Smoking",
        "Cannabis Use, Unspecified",
        "Cigarette Smoking",
        "Tobacco Use",
        "Nicotine Dependence",
        "Nicotine Withdrawal",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Smoked Cannabis",
          "type": "OTHER"
        },
        {
          "name": "Vaped Cannabis",
          "type": "OTHER"
        },
        {
          "name": "Tobacco Cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2020-10-30",
      "completion_date": "2024-06-25",
      "has_results": false,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 2,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04429568"
    },
    {
      "nct_id": "NCT04040153",
      "title": "Guiding Good Choices for Health",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adolescent Substance Use"
      ],
      "interventions": [
        {
          "name": "Guiding Good Choices",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "11 Years to 12 Years"
      },
      "enrollment_count": 3636,
      "start_date": "2019-09-30",
      "completion_date": "2025-05-31",
      "has_results": false,
      "last_update_posted_date": "2024-06-03",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 3,
      "location_summary": "Oakland, California • Aurora, Colorado • Detroit, Michigan",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04040153"
    },
    {
      "nct_id": "NCT04358705",
      "title": "C-FLASH (Cigarillo Flavor and Abuse Liability, Attention, and Substitution in youtH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Behaviors"
      ],
      "interventions": [
        {
          "name": "Aim 1: Online survey",
          "type": "OTHER"
        },
        {
          "name": "Eye Tracking Activity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Eye tracking survey",
          "type": "OTHER"
        },
        {
          "name": "Online Experimental Marketplace (ETM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Aim 3 survey",
          "type": "OTHER"
        },
        {
          "name": "Cognitive Interviews",
          "type": "OTHER"
        },
        {
          "name": "Supplemental Aim 1 Interviews",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "28 Years",
        "sex": "ALL",
        "summary": "16 Years to 28 Years"
      },
      "enrollment_count": 658,
      "start_date": "2020-05-29",
      "completion_date": "2023-02-10",
      "has_results": false,
      "last_update_posted_date": "2024-03-06",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04358705"
    },
    {
      "nct_id": "NCT03617692",
      "title": "Cannabis Use in Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Solid Tumor, Adult"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "21 Years to 100 Years"
      },
      "enrollment_count": 27,
      "start_date": "2018-12-04",
      "completion_date": "2022-12-12",
      "has_results": true,
      "last_update_posted_date": "2024-06-11",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Boulder, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03617692"
    },
    {
      "nct_id": "NCT07701304",
      "title": "Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cannabis Use",
        "Risk Perception",
        "Decision Making"
      ],
      "interventions": [
        {
          "name": "Discrete choice experiment (DCE) survey-experiment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2026-05-19",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-27",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07701304"
    },
    {
      "nct_id": "NCT04827992",
      "title": "Evaluation of Medical Cannabis and Prescription Opioid Taper Support for Reduction of Pain and Opioid Dose in Patients With Chronic Non-Cancer Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid Use",
        "Pain",
        "Marijuana Use"
      ],
      "interventions": [
        {
          "name": "Cannabis",
          "type": "DRUG"
        },
        {
          "name": "Prescription Opioid Taper Support (POTS)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 87,
      "start_date": "2021-08-23",
      "completion_date": "2025-10-31",
      "has_results": true,
      "last_update_posted_date": "2026-06-24",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 3,
      "location_summary": "Portland, Maine • Boston, Massachusetts • Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Portland",
          "state": "Maine"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04827992"
    },
    {
      "nct_id": "NCT05188404",
      "title": "Aging and Marijuana: Benefits, Effects, and Risks",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cannabis Use"
      ],
      "interventions": [
        {
          "name": "Choice of cannabis product",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Boulder",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 326,
      "start_date": "2021-09-20",
      "completion_date": "2025-05-25",
      "has_results": false,
      "last_update_posted_date": "2025-06-18",
      "last_synced_at": "2026-10-02T10:27:22.854Z",
      "location_count": 1,
      "location_summary": "Boulder, Colorado",
      "locations": [
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05188404"
    }
  ]
}