{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Graphic+Warning",
    "query": {
      "intervention": "Graphic Warning"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Graphic+Warning&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T21:38:00.575Z",
  "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": "NCT06179043",
      "title": "Impact of Front-of-package Warning Labels on Perceived Weight Stigmatization",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Weight Stigma"
      ],
      "interventions": [
        {
          "name": "Nutrient warning labels",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text-only health warning labels",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Graphic health warning labels",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control labels",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 2522,
      "start_date": "2024-01-18",
      "completion_date": "2024-01-26",
      "has_results": false,
      "last_update_posted_date": "2024-02-13",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06179043"
    },
    {
      "nct_id": "NCT04381481",
      "title": "Studying the Impact of Product Packaging in a Virtual Store Environment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity, Childhood"
      ],
      "interventions": [
        {
          "name": "Experimental Drink: Nutrition claim on fruit drinks",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Drink: No nutrition claim",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Experimental snack: Text warning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Experimental snack: Graphic warning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control snack: barcode label",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 2374,
      "start_date": "2020-05-14",
      "completion_date": "2020-07-24",
      "has_results": true,
      "last_update_posted_date": "2021-06-18",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04381481"
    },
    {
      "nct_id": "NCT02947802",
      "title": "Sugar Sweetened Beverage Labeling Support",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Consumer Behavior"
      ],
      "interventions": [
        {
          "name": "Effectiveness of Labels in Reducing Purchasing of Sugar Sweetened Beverages",
          "type": "OTHER"
        },
        {
          "name": "Control condition",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Harvard University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2016-10",
      "completion_date": "2016-11",
      "has_results": false,
      "last_update_posted_date": "2023-10-04",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02947802"
    },
    {
      "nct_id": "NCT04382599",
      "title": "Designing Impactful Warnings for Sugary Drinks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Text warning with square background",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text warning with octagon background",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Icon warning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Graphic warning",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 1078,
      "start_date": "2019-10-07",
      "completion_date": "2019-11-04",
      "has_results": false,
      "last_update_posted_date": "2021-01-25",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04382599"
    },
    {
      "nct_id": "NCT03446170",
      "title": "Effect of Cigarette Pack Warnings and Packaging Among Young Adult Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Graphic cigarette warning labels, plain packaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 400,
      "start_date": "2014-09-01",
      "completion_date": "2020-08-31",
      "has_results": false,
      "last_update_posted_date": "2022-01-04",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03446170"
    },
    {
      "nct_id": "NCT04259385",
      "title": "Effects of Sugary Drink Warning Labels on Parent Choices",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Food Preferences"
      ],
      "interventions": [
        {
          "name": "Exposure to sugar-sweetened beverage warning labels",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Exposure to beverage calorie information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2020-03-11",
      "completion_date": "2020-03-12",
      "has_results": false,
      "last_update_posted_date": "2021-09-20",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04259385"
    },
    {
      "nct_id": "NCT03654586",
      "title": "Effects of Sugary Drink Warning Labels",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Diabetes",
        "Weight Gain"
      ],
      "interventions": [
        {
          "name": "Sugary drink warning labels",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 337,
      "start_date": "2018-07-30",
      "completion_date": "2020-03-12",
      "has_results": false,
      "last_update_posted_date": "2021-04-23",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03654586"
    },
    {
      "nct_id": "NCT03499340",
      "title": "Pictorial Warning Labels & Memory for Relative & Absolute Cigarette Health-risk Information Over Time in Adult Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Smoking, Cigarette"
      ],
      "interventions": [
        {
          "name": "text-only PWL",
          "type": "BEHAVIORAL"
        },
        {
          "name": "low arousal graphic PWL",
          "type": "BEHAVIORAL"
        },
        {
          "name": "high arousal graphic PWL",
          "type": "BEHAVIORAL"
        },
        {
          "name": "absolute risk",
          "type": "BEHAVIORAL"
        },
        {
          "name": "relative risk",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "19 Years to 64 Years"
      },
      "enrollment_count": 3213,
      "start_date": "2017-07-10",
      "completion_date": "2017-10-03",
      "has_results": false,
      "last_update_posted_date": "2018-04-17",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03499340"
    },
    {
      "nct_id": "NCT07365813",
      "title": "Testing Alcohol Cancer Risk Messages",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Text-only messages",
          "type": "BEHAVIORAL"
        },
        {
          "name": "AI-developed Neutral pictorial messages",
          "type": "BEHAVIORAL"
        },
        {
          "name": "AI-developed graphic pictorial messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 850,
      "start_date": "2026-04-21",
      "completion_date": "2028-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07365813"
    },
    {
      "nct_id": "NCT01782053",
      "title": "Communicating Smoking Risks Through Graphic Warning Labels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lung Cancer",
        "Heart Disease"
      ],
      "interventions": [
        {
          "name": "Picture warning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 245,
      "start_date": "2013-01",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2014-12-02",
      "last_synced_at": "2026-09-03T21:38:00.575Z",
      "location_count": 2,
      "location_summary": "Columbus, Ohio • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01782053"
    }
  ]
}