{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Smartphone",
    "query": {
      "intervention": "Smartphone"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1635,
    "total_pages": 164,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Smartphone&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T08:43:50.065Z",
  "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": "NCT03836391",
      "title": "Precision Public Health: Enhancing Connections to Develop Just-in-Time Adaptive Intervention Strategies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity",
        "Overweight",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Nudge",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 53,
      "start_date": "2019-02-12",
      "completion_date": "2019-09-16",
      "has_results": false,
      "last_update_posted_date": "2019-11-13",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03836391"
    },
    {
      "nct_id": "NCT02841735",
      "title": "Young Adult Naturalistic Alcohol Study (YANAS) Using Smartphone Technology in a Simulated Laboratory Environment",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alcohol Use",
        "Alcohol Drinking",
        "Drinking Behavior"
      ],
      "interventions": [
        {
          "name": "Smartphone breathalyzer device/app use",
          "type": "DEVICE"
        },
        {
          "name": "BAC estimator app use",
          "type": "DEVICE"
        },
        {
          "name": "Text messaging procedure",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "21 Years to 25 Years"
      },
      "enrollment_count": 9,
      "start_date": "2016-07",
      "completion_date": "2018-02-03",
      "has_results": false,
      "last_update_posted_date": "2018-12-03",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02841735"
    },
    {
      "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": "2026-09-02T08:43:50.065Z",
      "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": "NCT01217710",
      "title": "Promoting Physical Activity in Chronic Obstructive Pulmonary Disease (COPD) Through New Technology and Health Coaching",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease",
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "Activity monitor/smartphone health coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 38,
      "start_date": "2012-04",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2015-05-13",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01217710"
    },
    {
      "nct_id": "NCT02037360",
      "title": "Mobile Mindfulness Training for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Active Comparator App/Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Experimental App/Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 1251,
      "start_date": "2015-08",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2018-01-30",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02037360"
    },
    {
      "nct_id": "NCT04912531",
      "title": "Virtual Reality and Olfactory Stimuli Multimodal Intervention to Reduce Post-Operative Pain and Anxiety in Patients Undergoing Cardiothoracic Surgery",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Pain",
        "Anxiety Postoperative",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "Virtual Realty using a Microsoft Hololens, Empatica HR wristband, and EEG",
          "type": "DEVICE"
        },
        {
          "name": "Essence Olfactory Necklace",
          "type": "DEVICE"
        },
        {
          "name": "Bedside Olfaction Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2022-10-01",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04912531"
    },
    {
      "nct_id": "NCT05180383",
      "title": "Examining Feasibility, Acceptability, and Sustainability of a Novel Personalized Smartphone Intervention for Suicide - Open Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Suicide and Self-harm",
        "Suicide",
        "Suicide, Attempted",
        "Suicidal Ideation"
      ],
      "interventions": [
        {
          "name": "Mobile Application to Prevent Suicide (MAPS)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Butler Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 10,
      "start_date": "2023-12-05",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 2,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05180383"
    },
    {
      "nct_id": "NCT05595629",
      "title": "App-based Remote Blood Pressure Monitoring",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gestational Hypertension",
        "Preeclampsia",
        "Chronic Hypertension Complicating Pregnancy"
      ],
      "interventions": [
        {
          "name": "App-based remote blood pressure monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "text-message based remote blood pressure monitoring",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Women and Infants Hospital of Rhode Island",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2022-11-07",
      "completion_date": "2023-08-30",
      "has_results": true,
      "last_update_posted_date": "2025-02-19",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05595629"
    },
    {
      "nct_id": "NCT04689256",
      "title": "Pilot Randomized Controlled Study of the Impact of MedRhythms' MR-010 in Acute Stroke",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke, Acute"
      ],
      "interventions": [
        {
          "name": "MR-010",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2021-11-03",
      "completion_date": "2023-01-30",
      "has_results": true,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04689256"
    },
    {
      "nct_id": "NCT03776422",
      "title": "Homeless Youth Study - Stepping Stone 2.0",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mental Health Issue (E.G., Depression, Psychosis, Personality Disorder, Substance Abuse)"
      ],
      "interventions": [
        {
          "name": "Mobile self-help intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "16 Years to 25 Years"
      },
      "enrollment_count": 100,
      "start_date": "2017-12-21",
      "completion_date": "2019-07-08",
      "has_results": false,
      "last_update_posted_date": "2019-09-27",
      "last_synced_at": "2026-09-02T08:43:50.065Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03776422"
    }
  ]
}