{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Smartphone+Text+Messaging",
    "query": {
      "intervention": "Smartphone Text Messaging"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 161,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Smartphone+Text+Messaging&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T09:59:01.874Z",
  "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": "NCT07556380",
      "title": "Sun Exposure and Activities After Skin Cancer: Optimization of mHealth Interventions",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Melanoma (Skin Cancer)"
      ],
      "interventions": [
        {
          "name": "UV Real-Time Alerts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Track Your Sun Protection",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Current Conditions",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Health Coaching",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Action Planning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Core Components",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2025-04-01",
      "completion_date": "2027-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07556380"
    },
    {
      "nct_id": "NCT06994962",
      "title": "Multi-Component Breath Alcohol Intervention Phase 3",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Use",
        "Alcohol Drinking",
        "Drinking Behavior"
      ],
      "interventions": [
        {
          "name": "Alcohol-related mobile health technologies",
          "type": "DEVICE"
        },
        {
          "name": "Motivational interview and psychoeducation on blood/breath alcohol concentration",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lower tech facilitation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Higher tech facilitation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Alcohol Education",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Alcohol Education Technology",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Northeastern 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": 90,
      "start_date": "2025-05-01",
      "completion_date": "2027-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-20",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06994962"
    },
    {
      "nct_id": "NCT02046811",
      "title": "Reducing Skin Cancer Risk in Childhood Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Skin Neoplasms"
      ],
      "interventions": [
        {
          "name": "Patient activation and education (PAE)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "PAE plus physician activation (PAE + MD)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "PAE physician activation, plus teledermoscopy (PAE +MD +TD)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 726,
      "start_date": "2015-03",
      "completion_date": "2018-01-01",
      "has_results": false,
      "last_update_posted_date": "2018-06-20",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02046811"
    },
    {
      "nct_id": "NCT05052281",
      "title": "Promoting Healthy Brain Development: Wellness for 2 Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prenatal Stress"
      ],
      "interventions": [
        {
          "name": "Mothers and Babies (MB) Course",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Just in Time Intervention (JITI) Content",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Biostamp nPoint Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2019-07-15",
      "completion_date": "2024-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-02-19",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05052281"
    },
    {
      "nct_id": "NCT03731533",
      "title": "WellStart Reboot Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "WellStart",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2018-12-01",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2020-09-16",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Athens, Ohio",
      "locations": [
        {
          "city": "Athens",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03731533"
    },
    {
      "nct_id": "NCT07493252",
      "title": "A Behavioral Application for Improving Smoking Cessation Among Smokers",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Smartphone app-based Intervention (Actify! A app)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smartphone app-based Intervention (Actify! B app)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Health Promotion and Education",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson 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": 1812,
      "start_date": "2026-11-01",
      "completion_date": "2029-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07493252"
    },
    {
      "nct_id": "NCT04629755",
      "title": "A Smartphone Intervention for Relational and Mental Well Being",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Loneliness",
        "Relation, Interpersonal",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1765,
      "start_date": "2020-04-04",
      "completion_date": "2020-08-03",
      "has_results": false,
      "last_update_posted_date": "2020-11-19",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04629755"
    },
    {
      "nct_id": "NCT05602779",
      "title": "Leverage Noninvasive Transcutaneous Vagus Nerve Stimulation to Reduce Suicidal Behaviors in Vulnerable Adolescents",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Self Harm",
        "Suicidal Ideation"
      ],
      "interventions": [
        {
          "name": "tVNS Program",
          "type": "DEVICE"
        },
        {
          "name": "Phone App Program",
          "type": "OTHER"
        },
        {
          "name": "tVNS and Phone App Program",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Sham tNVS and Control App",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of Notre Dame",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "13 Years to 17 Years"
      },
      "enrollment_count": 200,
      "start_date": "2024-11-15",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 2,
      "location_summary": "South Bend, Indiana • Rochester, New York",
      "locations": [
        {
          "city": "South Bend",
          "state": "Indiana"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05602779"
    },
    {
      "nct_id": "NCT03417440",
      "title": "A Smartphone App to Improve Physical Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sedentary Lifestyle"
      ],
      "interventions": [
        {
          "name": "Physical Activity (PA) Tracker App",
          "type": "OTHER"
        },
        {
          "name": "On Your Feet",
          "type": "OTHER"
        },
        {
          "name": "Coach Me",
          "type": "OTHER"
        },
        {
          "name": "Proof Positive",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "65 Years to 84 Years"
      },
      "enrollment_count": 111,
      "start_date": "2018-04-23",
      "completion_date": "2021-01-12",
      "has_results": true,
      "last_update_posted_date": "2022-11-21",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 2,
      "location_summary": "Glendale, California • Los Angeles, California",
      "locations": [
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03417440"
    },
    {
      "nct_id": "NCT07754448",
      "title": "Libre Del Cigarrillo: Development of an mHealth Smoking Cessation App to Extend Reach of a Validated Smoking Cessation Intervention for Spanish-speaking Smokers",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Libre del Cigarrillo Smartphone App",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Libre del Cigarrillo Printed Booklets",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SmokefreeTXT en Español",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2026-08",
      "completion_date": "2028-02",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-09-08T09:59:01.874Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07754448"
    }
  ]
}