{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=21",
    "query": {
      "intervention": "No message",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 635,
    "total_pages": 64,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T10:52:35.002Z",
  "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": "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": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03700281"
    },
    {
      "nct_id": "NCT04923334",
      "title": "Nonpharmacologic Pain Management in FQHC Primary Care Clinics",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Low Back Pain",
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Brief Pain Teleconsult",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Telehealth Physical Therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 500,
      "start_date": "2021-11-04",
      "completion_date": "2026-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 2,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04923334"
    },
    {
      "nct_id": "NCT01736111",
      "title": "Text Messaging for Weight Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "one way text",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personal feedback",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 91,
      "start_date": "2012-10",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2015-11-10",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01736111"
    },
    {
      "nct_id": "NCT06980090",
      "title": "Neural Mechanisms of Interpersonal Expectations on Negative Affect",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Negative Affectivity",
        "Non-invasive Brain Stimulation",
        "Placebo Effect",
        "Expectations"
      ],
      "interventions": [
        {
          "name": "Session A: Positive Placebo + Active tTIS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Session B: Positive Placebo + Sham tTIS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Session C: Negative Placebo + Active tTIS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Session D: Negative Placebo + Sham tTIS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Session E: On-Placebo + Sham tTIS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Session F: Off-Placebo + Sham tTIS",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Trustees of Dartmouth College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 196,
      "start_date": "2025-09-01",
      "completion_date": "2028-03-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-11",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Hanover, New Hampshire",
      "locations": [
        {
          "city": "Hanover",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06980090"
    },
    {
      "nct_id": "NCT04887922",
      "title": "Preoperative and Postoperative Incentive Spirometry in Patients Undergoing Major Abdominal Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Abdominal Surgery"
      ],
      "interventions": [
        {
          "name": "MIR Spirobank G",
          "type": "DEVICE"
        },
        {
          "name": "ZEPHYRx®",
          "type": "DEVICE"
        },
        {
          "name": "Conventional spirometer",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2022-05-03",
      "completion_date": "2022-12-27",
      "has_results": true,
      "last_update_posted_date": "2023-05-17",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04887922"
    },
    {
      "nct_id": "NCT01182480",
      "title": "Chronic Care Management/Patient Relationship Management Proof of Concept",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Patient Relationship Management (PRM) Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Denver Health and Hospital Authority",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "76 Years",
        "sex": "ALL",
        "summary": "18 Years to 76 Years"
      },
      "enrollment_count": 47,
      "start_date": "2010-05",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2014-11-05",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01182480"
    },
    {
      "nct_id": "NCT03238456",
      "title": "Smoking Cessation for Young Adult Pacific Islanders: Motivating Pacifika Against Cigarettes and Tobacco",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Tobacco Smoking",
        "Tobacco Use Cessation",
        "Smoking",
        "Smoking Cessation",
        "Smoking, Cigarette"
      ],
      "interventions": [
        {
          "name": "Motivating Pacifika Against Cigarettes and Tobacco",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Claremont Graduate 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": 278,
      "start_date": "2013-07-11",
      "completion_date": "2015-05-31",
      "has_results": false,
      "last_update_posted_date": "2017-08-04",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 2,
      "location_summary": "Claremont, California • Fullerton, California",
      "locations": [
        {
          "city": "Claremont",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03238456"
    },
    {
      "nct_id": "NCT04155736",
      "title": "Testing a Self-Management App for Symptoms of Posttraumatic Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PTSD"
      ],
      "interventions": [
        {
          "name": "Renew",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Palo Alto Veterans Institute for Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-07-11",
      "completion_date": "2021-02-06",
      "has_results": false,
      "last_update_posted_date": "2021-03-25",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Menlo Park, California",
      "locations": [
        {
          "city": "Menlo Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04155736"
    },
    {
      "nct_id": "NCT02619487",
      "title": "The Impact of Mobile Technology on Clinical Outcomes in Children and Adolescents With Type 1 Diabetes",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 1"
      ],
      "interventions": [
        {
          "name": "text message to parent only",
          "type": "OTHER"
        },
        {
          "name": "text message to parent and adolescent",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Louisville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "8 Years to 18 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-03",
      "completion_date": "2019-12-13",
      "has_results": false,
      "last_update_posted_date": "2018-12-17",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02619487"
    },
    {
      "nct_id": "NCT02194387",
      "title": "Energy Balance Interventions in Increasing Physical Activity in Breast Cancer Gene Positive Patients, Lynch Syndrome-Positive Patients, CLL Survivors or High-Risk Family Members",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Body Mass Index 25 or Greater",
        "BRCA1 Gene Mutation",
        "BRCA2 Gene Mutation",
        "Breast Carcinoma",
        "Cancer Survivor",
        "Chronic Lymphocytic Leukemia",
        "Fatigue",
        "Health Status Unknown",
        "Lynch Syndrome",
        "Ovarian Carcinoma",
        "Overweight"
      ],
      "interventions": [
        {
          "name": "Dietary Intervention",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Internet-Based Intervention",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Telephone-Based Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "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": "2014-09-17",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-16",
      "last_synced_at": "2026-10-23T10:52:35.002Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02194387"
    }
  ]
}