{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Harm+Perception",
    "query": {
      "condition": "Harm Perception"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T14:26:05.726Z",
  "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": "NCT06919276",
      "title": "Nicotine and Cannabis Vape Labeling Experiment - Spring 2025",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaping",
        "Adolescent",
        "Electronic Cigarette Use",
        "Nicotine",
        "Cannabis"
      ],
      "interventions": [
        {
          "name": "Vaping Device Labeling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "11 Years to 19 Years"
      },
      "enrollment_count": 3048,
      "start_date": "2025-03-03",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-22T14:26:05.726Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06919276"
    },
    {
      "nct_id": "NCT06358144",
      "title": "Cannabis Edibles Packaging Imagery Experiment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cannabis Use"
      ],
      "interventions": [
        {
          "name": "Packaging imagery",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No Imagery (Control)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 1260,
      "start_date": "2024-05-23",
      "completion_date": "2024-06-19",
      "has_results": true,
      "last_update_posted_date": "2025-06-08",
      "last_synced_at": "2026-07-22T14:26:05.726Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06358144"
    },
    {
      "nct_id": "NCT06171399",
      "title": "Cannabis Edibles Packaging Descriptors Experiment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cannabis Use"
      ],
      "interventions": [
        {
          "name": "\"All Natural\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Gluten-free\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Vegan\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"100% Organic\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Handcrafted\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Made with live resin\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Fast-acting\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Relax\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Energy Boost\" descriptor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No descriptor (control)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 2521,
      "start_date": "2024-03-15",
      "completion_date": "2024-04-15",
      "has_results": true,
      "last_update_posted_date": "2025-05-09",
      "last_synced_at": "2026-07-22T14:26:05.726Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06171399"
    },
    {
      "nct_id": "NCT05157048",
      "title": "Acute Effects of Cigarette Packaging and Charcoal Filtration on Perceptions, Use Behaviors, and Harm Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Behaviors"
      ],
      "interventions": [
        {
          "name": "Charcoal-filtered cigarette",
          "type": "OTHER"
        },
        {
          "name": "Non-charcoal filtered cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 42,
      "start_date": "2022-03-10",
      "completion_date": "2023-02-14",
      "has_results": true,
      "last_update_posted_date": "2024-11-07",
      "last_synced_at": "2026-07-22T14:26:05.726Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05157048"
    },
    {
      "nct_id": "NCT05317663",
      "title": "Developing and Testing Waterpipe-specific Health Warning Labels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Waterpipe Smoking",
        "Health Warning Label",
        "Harm Perception",
        "Puffing Behaviour",
        "Quitting Smoking",
        "Health Risk Behaviors"
      ],
      "interventions": [
        {
          "name": "Test Health Warning Label (HWL)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Test without Health Warning Label (no-HWL)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Florida International University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "21 Years to 35 Years"
      },
      "enrollment_count": 44,
      "start_date": "2022-10-03",
      "completion_date": "2024-12-09",
      "has_results": false,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-07-22T14:26:05.726Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05317663"
    }
  ]
}