{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=20",
    "query": {
      "intervention": "No message",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 635,
    "total_pages": 64,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+message&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T04:59:44.442Z",
  "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": "NCT02701998",
      "title": "The Stroke and Exercise Program",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Exercise",
        "Sedentary Lifestyle",
        "Ischemic Attack, Transient"
      ],
      "interventions": [
        {
          "name": "mHealth-Enhance Physical Activity Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Physical Activity Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "The Miriam Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 70,
      "start_date": "2015-11",
      "completion_date": "2019-11",
      "has_results": false,
      "last_update_posted_date": "2019-03-06",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02701998"
    },
    {
      "nct_id": "NCT04267263",
      "title": "A Novel Approach to Reducing Adiposity Among Young Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Weight Loss",
        "Men",
        "Lifestyle Risk Reduction",
        "Cardiovascular Diseases",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Self-guided lifestyle intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "MALE",
        "summary": "18 Years to 35 Years · Male only"
      },
      "enrollment_count": 35,
      "start_date": "2021-01-20",
      "completion_date": "2021-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-07-26",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04267263"
    },
    {
      "nct_id": "NCT05674110",
      "title": "Screening and Nutrition for Patients With Diabetes: A Pilot Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "DSMES Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Villanova University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2023-01-09",
      "completion_date": "2024-12-15",
      "has_results": false,
      "last_update_posted_date": "2024-05-14",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Villanova, Pennsylvania",
      "locations": [
        {
          "city": "Villanova",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05674110"
    },
    {
      "nct_id": "NCT06915428",
      "title": "Personalized Care for Prenatal Stress Reduction & Prevention of Preterm Birth (PTB) Disparities",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preterm Birth Complication",
        "Preterm Birth",
        "Preterm Birth Recurrence",
        "Preeclampsia",
        "Preeclampsia (PE)",
        "Hypertensive Disorders of Pregnancy",
        "Support Program",
        "Stress",
        "Resilience, Psychological",
        "Empowerment, Patient",
        "Emotional Stress",
        "Pregnancy",
        "Pregnancy Complications",
        "Pregnancy Induced Hypertension",
        "Neonates and Preterm Infants",
        "Cervical Insufficiency",
        "Social Determinants of Health (SDOH)",
        "Cervical Shortening",
        "Disparities in Pregnancy Complications",
        "Disparities",
        "Prenatal Care",
        "Care Coordination"
      ],
      "interventions": [
        {
          "name": "Care coordination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Electronic massage",
          "type": "BEHAVIORAL"
        },
        {
          "name": "support gift #1",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Support gift #2",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Support gift #3",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Support gift #4",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Additional PTBCARE+ support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress reduction toolkit - Visit 1 (V1)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "PTBCARE+ mobile application (app) and website",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sleep, meditation, and Wellness app",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Emergency low blood sugar kit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Low dose aspirin (LDA)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Visit #2 Stress Reduction Toolkit",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1228,
      "start_date": "2026-10-01",
      "completion_date": "2029-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06915428"
    },
    {
      "nct_id": "NCT05135325",
      "title": "Encouraging Blood Donation in Patients With a Blood Type in Short Supply",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Patient portal message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social responsibility",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 59093,
      "start_date": "2021-11-15",
      "completion_date": "2022-06-06",
      "has_results": false,
      "last_update_posted_date": "2022-07-26",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05135325"
    },
    {
      "nct_id": "NCT03749473",
      "title": "Evaluation of the Novel Use of Gamification With Alternative Goal-setting Experiences",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atherosclerotic Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Choice + Immediate",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Choice + Gradual",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Assigned + Immediate",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Assigned + Gradual",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Daily performance feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Gamification",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2019-01-14",
      "completion_date": "2020-06-01",
      "has_results": false,
      "last_update_posted_date": "2020-06-04",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03749473"
    },
    {
      "nct_id": "NCT02204956",
      "title": "Smoking Cessation Following Psychiatric Hospitalization",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Sustained Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 422,
      "start_date": "2015-07",
      "completion_date": "2019-06",
      "has_results": false,
      "last_update_posted_date": "2018-05-11",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02204956"
    },
    {
      "nct_id": "NCT04567342",
      "title": "Effect of Varied Outreach Methods on Appointment Scheduling, Appointment Completion, and Receipt of MMR Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preventable Disease, Vaccine",
        "Health Care Utilization"
      ],
      "interventions": [
        {
          "name": "1 automated message",
          "type": "OTHER"
        },
        {
          "name": "2 automated messages",
          "type": "OTHER"
        },
        {
          "name": "No personal contact attempt",
          "type": "OTHER"
        },
        {
          "name": "1 personal contact attempt",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "4 Years",
        "sex": "ALL",
        "summary": "12 Months to 4 Years"
      },
      "enrollment_count": 1312,
      "start_date": "2020-11-27",
      "completion_date": "2021-09-05",
      "has_results": true,
      "last_update_posted_date": "2024-08-12",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04567342"
    },
    {
      "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": "2026-10-23T04:59:44.442Z",
      "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": "NCT05469477",
      "title": "Increasing Seat Belt Wearing and Decreasing Handheld Phone Use While Driving",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Distracted Driving",
        "Impaired Driving",
        "Driving Behaviors"
      ],
      "interventions": [
        {
          "name": "Persuasive education",
          "type": "BEHAVIORAL"
        },
        {
          "name": "WOOP (aka, mental contrasting with implementation intentions., Wish, Outcome, Obstacle, Plan)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Customized Habit Tips",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Raffle Financial Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Shared Pot Financial Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Weekly SMS Support text",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Weekly SMS Encouragement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1139,
      "start_date": "2023-03-12",
      "completion_date": "2023-06-29",
      "has_results": false,
      "last_update_posted_date": "2023-10-03",
      "last_synced_at": "2026-10-23T04:59:44.442Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05469477"
    }
  ]
}