{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fitbit+Charge+HR",
    "query": {
      "intervention": "Fitbit Charge HR"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fitbit+Charge+HR&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T09:44:02.046Z",
  "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": "NCT03265665",
      "title": "physicAl aCtiviTy In minOrity womeN With Asthma Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "ACTION Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced usual care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 70 Years · Female only"
      },
      "enrollment_count": 53,
      "start_date": "2017-10-01",
      "completion_date": "2019-09-30",
      "has_results": true,
      "last_update_posted_date": "2022-02-23",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03265665"
    },
    {
      "nct_id": "NCT03757182",
      "title": "Digitally-Captured Step Counts for Evaluating Performance Status in Advanced Cancer Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Cancer, Metastatic",
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "Wearable activity monitor",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "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": "2018-12-05",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-08-27",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03757182"
    },
    {
      "nct_id": "NCT02786628",
      "title": "Assessing Physical Fitness in Cancer Patients With Cardiopulmonary Exercise Testing and Wearable Data Generation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Malignant Solid Tumour",
        "Hematologic Malignancies",
        "Planned Hematopoietic Cell Transplantation"
      ],
      "interventions": [
        {
          "name": "Physical performance testing and patient-generated health data",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43,
      "start_date": "2016-02",
      "completion_date": "2018-02",
      "has_results": false,
      "last_update_posted_date": "2018-03-22",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02786628"
    },
    {
      "nct_id": "NCT04575402",
      "title": "Digitally Captured Activity Data and PROs to Monitor Physical Function in Prostate Cancer Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Wearable Activity Monitor",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2021-02-19",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-08-27",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04575402"
    },
    {
      "nct_id": "NCT02556567",
      "title": "Exploring the Effects of Sleep Patterns and Physical Activity on Asthma in Adolescents With Wrist-worn Smart Devices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Fitbit® Charge Heart Rate (HR) wristband",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arkansas Children's Hospital Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "14 Years to 17 Years"
      },
      "enrollment_count": 23,
      "start_date": "2015-08",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2024-07-31",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02556567"
    },
    {
      "nct_id": "NCT02659358",
      "title": "Evaluating the Use of Wearable Biosensors and PROs to Assess Performance Status in Patients With Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "Fitbit Charge HR®",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2016-01-24",
      "completion_date": "2017-08-24",
      "has_results": false,
      "last_update_posted_date": "2017-09-25",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02659358"
    },
    {
      "nct_id": "NCT03069716",
      "title": "A Mobile Health Intervention in Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension",
        "Idiopathic Pulmonary Arterial Hypertension",
        "Heritable Pulmonary Arterial Hypertension",
        "Associated Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Smartphone Text Messaging",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Charge HR",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 49,
      "start_date": "2017-08-02",
      "completion_date": "2020-04-24",
      "has_results": true,
      "last_update_posted_date": "2021-06-25",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03069716"
    },
    {
      "nct_id": "NCT03157713",
      "title": "Financial Incentives for Weight Reduction Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obese"
      ],
      "interventions": [
        {
          "name": "Goal-Directed Financial Incentives",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Usual Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Outcome-based Financial Incentives",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "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": 668,
      "start_date": "2017-10-16",
      "completion_date": "2021-03-22",
      "has_results": false,
      "last_update_posted_date": "2023-05-30",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 2,
      "location_summary": "Sylmar, California • Brooklyn, New York",
      "locations": [
        {
          "city": "Sylmar",
          "state": "California"
        },
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03157713"
    },
    {
      "nct_id": "NCT02507791",
      "title": "Impact of Fitbit Plus Weight Management Program on Physical Activity and Metabolic Disease in Obese Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Fitbit Charge HR plus weekly phone calls to review physical activity data",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "7 Years to 18 Years"
      },
      "enrollment_count": 60,
      "start_date": "2015-05",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2022-02-15",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02507791"
    },
    {
      "nct_id": "NCT02932215",
      "title": "Use of a Mobile Health Sensor in an Open Label Trial of Lorcaserin for the Treatment of Cannabis Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cannabis Use Disorder"
      ],
      "interventions": [
        {
          "name": "lorcaserin",
          "type": "DRUG"
        },
        {
          "name": "Fitbit Charge HR",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 17,
      "start_date": "2016-10",
      "completion_date": "2019-01-17",
      "has_results": false,
      "last_update_posted_date": "2019-10-11",
      "last_synced_at": "2026-09-10T09:44:02.046Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02932215"
    }
  ]
}