{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=2",
    "query": {
      "intervention": "No message",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T00:58:06.617Z",
  "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": "NCT03294551",
      "title": "HPV Centralized R/R RCT #2 - New York State",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccines"
      ],
      "interventions": [
        {
          "name": "HPV Vaccine Reminder Recall - Autodialer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "HPV Vaccine Reminder Recall - Texting",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "11 Years to 14 Years"
      },
      "enrollment_count": 37003,
      "start_date": "2017-10-27",
      "completion_date": "2019-11-05",
      "has_results": false,
      "last_update_posted_date": "2021-05-27",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03294551"
    },
    {
      "nct_id": "NCT02955537",
      "title": "MI-BP: mHealth to Improve Blood Pressure Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "MI-BP",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "25 Years to 70 Years"
      },
      "enrollment_count": 162,
      "start_date": "2018-01-11",
      "completion_date": "2021-04-15",
      "has_results": false,
      "last_update_posted_date": "2023-03-01",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan • Detroit, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02955537"
    },
    {
      "nct_id": "NCT06300242",
      "title": "Incentives for Influenza Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza Vaccination"
      ],
      "interventions": [
        {
          "name": "Reminders",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69972,
      "start_date": "2024-01-17",
      "completion_date": "2024-02-29",
      "has_results": false,
      "last_update_posted_date": "2024-05-13",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Martinez, California",
      "locations": [
        {
          "city": "Martinez",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06300242"
    },
    {
      "nct_id": "NCT06359392",
      "title": "Palliative Care Messaging for American Indians",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knowledge, Attitudes, Practice"
      ],
      "interventions": [
        {
          "name": "No message",
          "type": "OTHER"
        },
        {
          "name": "Culture-centric message",
          "type": "OTHER"
        },
        {
          "name": "General messge",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "South Dakota State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 408,
      "start_date": "2024-04-29",
      "completion_date": "2024-06-13",
      "has_results": false,
      "last_update_posted_date": "2024-06-27",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Rapid City, South Dakota",
      "locations": [
        {
          "city": "Rapid City",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06359392"
    },
    {
      "nct_id": "NCT03700281",
      "title": "Investigating the Effectiveness of a Seasonal Influenza Vaccination Promotion Campaign for Members of a Non-Profit, Community-Based Health Insurance Plan: 2018-2019",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza, Vaccination"
      ],
      "interventions": [
        {
          "name": "Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentive",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Texas Health Science Center at Tyler",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22584,
      "start_date": "2018-10-06",
      "completion_date": "2019-08-31",
      "has_results": false,
      "last_update_posted_date": "2019-04-23",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03700281"
    },
    {
      "nct_id": "NCT01545609",
      "title": "A Trial Assessing the Effectiveness of Text Messages in Improving Continuation of Birth Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Initiation of a Birth Control Method"
      ],
      "interventions": [
        {
          "name": "Text messaging",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "19 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 19 Years · Female only"
      },
      "enrollment_count": 220,
      "start_date": "2012-03",
      "completion_date": "2013-11",
      "has_results": false,
      "last_update_posted_date": "2013-12-24",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01545609"
    },
    {
      "nct_id": "NCT05821205",
      "title": "Michigan Youth Violence Prevention Center: Building Evidence for Gun Violence Prevention - SafERteens Implementation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Violence in Adolescence"
      ],
      "interventions": [
        {
          "name": "Narrative Persuasion",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reciprocity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personalized Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Commitment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 171,
      "start_date": "2023-02-28",
      "completion_date": "2026-04-13",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 6,
      "location_summary": "Ann Arbor, Michigan • Fruitport, Michigan • Muskegon, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Fruitport",
          "state": "Michigan"
        },
        {
          "city": "Muskegon",
          "state": "Michigan"
        },
        {
          "city": "Muskegon",
          "state": "Michigan"
        },
        {
          "city": "Muskegon",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05821205"
    },
    {
      "nct_id": "NCT07771270",
      "title": "Kosmos Guidance Performance Evaluation Data Annotation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart",
        "Ultrasound",
        "Cardiac Ultrasound",
        "Cardiac Disease"
      ],
      "interventions": [
        {
          "name": "Category 1: Corrective Guidance",
          "type": "DEVICE"
        },
        {
          "name": "Category 2: Incorrect Scanning Window",
          "type": "DEVICE"
        },
        {
          "name": "Category 3: Incorrect Probe Orientation",
          "type": "DEVICE"
        },
        {
          "name": "Category 4: Low Confidence Prediction",
          "type": "DEVICE"
        },
        {
          "name": "Auto-Capture Frame-Level Re-Annotation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EchoNous Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 81,
      "start_date": "2026-06-05",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Redmond, Washington",
      "locations": [
        {
          "city": "Redmond",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07771270"
    },
    {
      "nct_id": "NCT04998019",
      "title": "PositiveLinks: mHealth for DC Cohort",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV/AIDS"
      ],
      "interventions": [
        {
          "name": "PositiveLinks",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 682,
      "start_date": "2022-12-12",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-19",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 13,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04998019"
    },
    {
      "nct_id": "NCT06444295",
      "title": "Testing the Impact of Thrive App Versions on Alcohol Use and Posttraumatic Stress After Recent Sexual Assault",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Posttraumatic Stress Symptom",
        "Alcohol Drinking",
        "Alcohol Problem"
      ],
      "interventions": [
        {
          "name": "Activity scheduling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive restructuring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Coaching calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Non-core intervention components",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 464,
      "start_date": "2024-07-29",
      "completion_date": "2027-07-15",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-09-08T00:58:06.617Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06444295"
    }
  ]
}