{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Message+Perception",
    "query": {
      "condition": "Message Perception"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Message+Perception&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T17:48:24.785Z",
  "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": "NCT04377581",
      "title": "COVID-19 Health Messaging Efficacy and Its Impact on Public Perception, Anxiety, and Behavior",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Public Health",
        "Demography",
        "Pandemics",
        "Corona Virus Infection",
        "News",
        "Global Health",
        "Perception"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18251,
      "start_date": "2020-04-09",
      "completion_date": "2020-07-10",
      "has_results": false,
      "last_update_posted_date": "2020-07-16",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04377581"
    },
    {
      "nct_id": "NCT05509270",
      "title": "Efficacy of Communication Modalities for Promoting Flu Shots",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza Vaccination",
        "Health Promotion",
        "Health Behavior",
        "Risk Reduction"
      ],
      "interventions": [
        {
          "name": "Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient portal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SMS",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43225,
      "start_date": "2022-09-06",
      "completion_date": "2022-10-04",
      "has_results": false,
      "last_update_posted_date": "2022-10-12",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05509270"
    },
    {
      "nct_id": "NCT04740008",
      "title": "Impact of Low Nicotine Cigarette Messaging on Perceptions and Cigarette Choices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Smoking",
        "Cigarette"
      ],
      "interventions": [
        {
          "name": "Low Nicotine Content Cigarettes",
          "type": "DRUG"
        },
        {
          "name": "Control message",
          "type": "OTHER"
        },
        {
          "name": "Test message",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2021-04-20",
      "completion_date": "2022-08-24",
      "has_results": false,
      "last_update_posted_date": "2024-02-26",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04740008"
    },
    {
      "nct_id": "NCT02498899",
      "title": "Message 2: The Effect of Message Content and Clinical Outcome on Patient's Perception of Physician Compassion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Advanced Cancers"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 148,
      "start_date": "2015-07",
      "completion_date": "2018-12-06",
      "has_results": false,
      "last_update_posted_date": "2019-03-19",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02498899"
    },
    {
      "nct_id": "NCT07702435",
      "title": "Oral Nicotine Product Messaging to Communicate Risk of Use for Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Behavioral Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 607,
      "start_date": "2025-08-01",
      "completion_date": "2025-12-29",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07702435"
    },
    {
      "nct_id": "NCT04637412",
      "title": "Perceived Effectiveness of Added Sugar Labels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Knowledge",
        "Attitude to Health"
      ],
      "interventions": [
        {
          "name": "Menu label",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1448,
      "start_date": "2020-11-13",
      "completion_date": "2020-12-26",
      "has_results": false,
      "last_update_posted_date": "2021-01-08",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04637412"
    },
    {
      "nct_id": "NCT02724969",
      "title": "A Mobile, Semi-automated Text Message-based Intervention to Prevent Perceived Low or Insufficient Milk Supply",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Feeding"
      ],
      "interventions": [
        {
          "name": "MILK or Text4Baby text message intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 250,
      "start_date": "2017-02-10",
      "completion_date": "2019-05-13",
      "has_results": true,
      "last_update_posted_date": "2025-02-12",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02724969"
    },
    {
      "nct_id": "NCT04450537",
      "title": "PACE Vape Messaging Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaping",
        "E-cigarette Use",
        "Electronic Cigarette Use"
      ],
      "interventions": [
        {
          "name": "Vape Messaging Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "18 Years to 24 Years"
      },
      "enrollment_count": 569,
      "start_date": "2020-06-23",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2020-11-03",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04450537"
    },
    {
      "nct_id": "NCT07802054",
      "title": "Messages That Motivate: Communicating Alcohol-Related Breast Cancer Risk to Young Adult Women",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Communication",
        "Message Perception",
        "Alcohol",
        "Cancer Prevention",
        "Behavior, Risk"
      ],
      "interventions": [
        {
          "name": "Risk Message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Efficacy Message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Industry Deception",
          "type": "BEHAVIORAL"
        },
        {
          "name": "YAW Susceptibility",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mechanisms",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 25 Years · Female only"
      },
      "enrollment_count": 900,
      "start_date": "2026-10",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07802054"
    },
    {
      "nct_id": "NCT02676193",
      "title": "Effect of Packaging on Smoking Perceptions and Behavior",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Effect of Packaging on Smoking Perceptions and Behavior",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 359,
      "start_date": "2016-02",
      "completion_date": "2022-09",
      "has_results": false,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-09-04T17:48:24.785Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02676193"
    }
  ]
}