{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Message&page=42",
    "query": {
      "intervention": "Message",
      "page": 42
    },
    "page_size": 10
  },
  "pagination": {
    "page": 42,
    "page_size": 10,
    "total_count": 3117,
    "total_pages": 312,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Message&page=43&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Message&page=41&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T02:04:24.261Z",
  "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": "NCT04315506",
      "title": "A Text-based Reduction Intervention for Smokeless Tobacco Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smokeless Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "#EnufSnuff.TXT Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enough Snuff Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 532,
      "start_date": "2020-10-16",
      "completion_date": "2023-01-28",
      "has_results": true,
      "last_update_posted_date": "2024-07-17",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04315506"
    },
    {
      "nct_id": "NCT05742685",
      "title": "Refinement and Adaption of Reinforcement Learning to Personalize Behavioral Messaging for Healthy Habits",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 2",
        "Medication Adherence"
      ],
      "interventions": [
        {
          "name": "Reinforcement Learning",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "18 Years to 84 Years"
      },
      "enrollment_count": 28,
      "start_date": "2023-08-23",
      "completion_date": "2025-12-17",
      "has_results": false,
      "last_update_posted_date": "2026-03-20",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05742685"
    },
    {
      "nct_id": "NCT03672578",
      "title": "Reducing Sugar-sweetened Beverage Consumption Among Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intention",
        "Health Knowledge, Attitudes, Practice"
      ],
      "interventions": [
        {
          "name": "loss-frame",
          "type": "OTHER"
        },
        {
          "name": "gain-frame",
          "type": "OTHER"
        },
        {
          "name": "text-only",
          "type": "OTHER"
        },
        {
          "name": "icon",
          "type": "OTHER"
        },
        {
          "name": "attribution",
          "type": "OTHER"
        },
        {
          "name": "no attribution",
          "type": "OTHER"
        },
        {
          "name": "No 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": 2971,
      "start_date": "2018-08-18",
      "completion_date": "2018-11-17",
      "has_results": false,
      "last_update_posted_date": "2019-01-23",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03672578"
    },
    {
      "nct_id": "NCT03972293",
      "title": "2018 Intern Health Study Micro-randomized Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Mood",
        "Sleep",
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "Intern Health Study behavioral change mobile notification",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intern Health Study mobile app",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2134,
      "start_date": "2018-04-01",
      "completion_date": "2019-07-01",
      "has_results": false,
      "last_update_posted_date": "2019-08-13",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03972293"
    },
    {
      "nct_id": "NCT07103525",
      "title": "Initiative for Chinese Sex Workers to Promote Wellbeing and Improve HIV Prevention by Reducing intersEctional Stigma",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Prevention",
        "Wellbeing"
      ],
      "interventions": [
        {
          "name": "INSPIRE Initiative",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "NYU Langone Health",
      "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": 70,
      "start_date": "2026-06",
      "completion_date": "2028-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 3,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07103525"
    },
    {
      "nct_id": "NCT04801524",
      "title": "Text-based Reminders to Promote COVID-19 Vaccinations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19, Vaccines"
      ],
      "interventions": [
        {
          "name": "Self-benefit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Prosocial-benefit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Early access",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fresh start",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250000,
      "start_date": "2021-02-07",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-09-13",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Westwood, Los Angeles, California",
      "locations": [
        {
          "city": "Westwood, Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04801524"
    },
    {
      "nct_id": "NCT03652688",
      "title": "Group-based Intervention for Club Patrons",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Drink Too Much",
        "Drinking, Binge",
        "Drunk",
        "Drug Use",
        "Aggression",
        "Aggression Sexual",
        "Peer Group",
        "Safety Issues",
        "Harm Reduction"
      ],
      "interventions": [
        {
          "name": "Nightlife Safety Plans (NSP)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fire Safety",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Pacific Institute for Research and Evaluation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 959,
      "start_date": "2016-06-15",
      "completion_date": "2017-10-01",
      "has_results": true,
      "last_update_posted_date": "2025-01-14",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 2,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03652688"
    },
    {
      "nct_id": "NCT02279017",
      "title": "mHealth Messages to Sustain Recent Weight Loss - Phase 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "mHealth Texting for Weight Loss",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 100,
      "start_date": "2014-10",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-01-26",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02279017"
    },
    {
      "nct_id": "NCT03803423",
      "title": "Dissemination of the Donor Application: Utilizing Social Media to Identify Potential Live Organ Donors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "End Stage Renal Disease",
        "End Stage Liver Disease"
      ],
      "interventions": [
        {
          "name": "The Donor App",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2017-11-27",
      "completion_date": "2026-11-27",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 6,
      "location_summary": "San Diego, California • New Haven, Connecticut • Chicago, Illinois + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Portland",
          "state": "Maine"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03803423"
    },
    {
      "nct_id": "NCT06730646",
      "title": "Testing Different Anti-smoking Messages Among Chinese Young Adult Smokers and Nonsmokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Prevention"
      ],
      "interventions": [
        {
          "name": "Health effects",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Tobacco industry manipulation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Secondhand smoke",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mentral health",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social acceptability",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Georgia State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 1541,
      "start_date": "2025-09-01",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-14",
      "last_synced_at": "2026-10-21T02:04:24.261Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06730646"
    }
  ]
}