{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+messages",
    "query": {
      "intervention": "Control messages"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1418,
    "total_pages": 142,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+messages&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-01T18:46:36.718Z",
  "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": "NCT01453790",
      "title": "Parent Specific Depression Education and Motivation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depressive Symptoms"
      ],
      "interventions": [
        {
          "name": "Parent-Specific Depression Education and Motivation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "General Depression Education-Motivation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 104,
      "start_date": "2011-04",
      "completion_date": "2012-01",
      "has_results": false,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01453790"
    },
    {
      "nct_id": "NCT03300180",
      "title": "Caregiver Outcomes of Alzheimer's Disease Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alzheimer Disease"
      ],
      "interventions": [
        {
          "name": "Collaborative Dementia Care Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Screening Only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 1822,
      "start_date": "2018-10-15",
      "completion_date": "2023-09-30",
      "has_results": true,
      "last_update_posted_date": "2025-05-02",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03300180"
    },
    {
      "nct_id": "NCT07220018",
      "title": "Colorectal Cancer Screening in the Homeless",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "mHealth for Colorectal cancer screening in Homeless Persons",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control SMS Messages",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "45 Years to 75 Years"
      },
      "enrollment_count": 588,
      "start_date": "2026-09",
      "completion_date": "2030-10",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "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/NCT07220018"
    },
    {
      "nct_id": "NCT07102290",
      "title": "Pragmatic Trial of Text Messages to Recruit Unassisted Tobacco Users Into Quitline Service",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation Counselling"
      ],
      "interventions": [
        {
          "name": "Free Help",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Free Nicotine message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spanish: Free help message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spanish: Free nicotine message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4171,
      "start_date": "2022-04-01",
      "completion_date": "2022-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07102290"
    },
    {
      "nct_id": "NCT00923624",
      "title": "Patient Portal to Support Treatment Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Antiretroviral Medication Adherence"
      ],
      "interventions": [
        {
          "name": "attention control",
          "type": "OTHER"
        },
        {
          "name": "adherence intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 304,
      "start_date": "2009-06",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2017-10-13",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 2,
      "location_summary": "Oakland, California • Seattle, Washington",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00923624"
    },
    {
      "nct_id": "NCT05762835",
      "title": "Neonatal Intensive Care Unit Virtual Family-Centered Rounds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pediatric Disorder",
        "Neonatal Disease"
      ],
      "interventions": [
        {
          "name": "Virtual family-centered rounds (FCR)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 514,
      "start_date": "2023-03-13",
      "completion_date": "2024-07-13",
      "has_results": true,
      "last_update_posted_date": "2025-08-17",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05762835"
    },
    {
      "nct_id": "NCT05145868",
      "title": "Just-In-Time Intervention to Reduce Alcohol-Facilitated Intimate Partner Violence Perpetration",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Drinking",
        "Aggression",
        "Emotion Regulation"
      ],
      "interventions": [
        {
          "name": "Alcohol Skills and Emotion Regulation Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Attention Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Georgia State University",
      "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": 400,
      "start_date": "2023-01-03",
      "completion_date": "2026-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05145868"
    },
    {
      "nct_id": "NCT06156215",
      "title": "PROmotion of COVID-19 BOOSTer VA(X)Ccination in the Emergency Department - PROBOOSTVAXED",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Vaccine Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vaccine Acceptance Question",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 919,
      "start_date": "2024-01-19",
      "completion_date": "2024-08-18",
      "has_results": true,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 7,
      "location_summary": "San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06156215"
    },
    {
      "nct_id": "NCT03736876",
      "title": "A Healthy Relationships Program for Vulnerable Youth",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy, Unplanned",
        "Sexually Transmitted Diseases"
      ],
      "interventions": [
        {
          "name": "About Us",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "ETR Associates",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "14 Years to 18 Years"
      },
      "enrollment_count": 550,
      "start_date": "2018-02-01",
      "completion_date": "2021-05-12",
      "has_results": false,
      "last_update_posted_date": "2022-03-24",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 3,
      "location_summary": "Oakland, California • San Diego, California • Scotts Valley, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Scotts Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03736876"
    },
    {
      "nct_id": "NCT02031185",
      "title": "A Wearable mHealth Device to Promote Teenagers' Physical Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "FitBit only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "FitBit and Text Messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Seattle Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "14 Years to 18 Years"
      },
      "enrollment_count": 40,
      "start_date": "2014-03",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-04-13",
      "last_synced_at": "2026-09-01T18:46:36.718Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02031185"
    }
  ]
}