{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart+rate+and+heart+rate+variability+comparison+device",
    "query": {
      "intervention": "Heart rate and heart rate variability comparison device"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T16:19:21.018Z",
  "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": "NCT03915587",
      "title": "Bedside Resources to Gauge Intravascular Volume Status",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypovolemia",
        "Craniosynostoses"
      ],
      "interventions": [
        {
          "name": "CardioQ-EDM and CipherOx-CRI",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "2 Years",
        "sex": "ALL",
        "summary": "3 Months to 2 Years"
      },
      "enrollment_count": 23,
      "start_date": "2019-04-08",
      "completion_date": "2020-03-12",
      "has_results": true,
      "last_update_posted_date": "2023-06-29",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03915587"
    },
    {
      "nct_id": "NCT07463144",
      "title": "Evaluation of a Mobile Wellness Application and Wearable Fitness Tracker on Weight Management and Health Outcomes",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity & Overweight"
      ],
      "interventions": [
        {
          "name": "App + Fitness Tracker",
          "type": "BEHAVIORAL"
        },
        {
          "name": "App Only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "BetterMe Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2026-03",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07463144"
    },
    {
      "nct_id": "NCT05035420",
      "title": "A Noninvasive Multimodal Biosensing Device for Screening and Monitoring Response to Treatment of Infectious Respiratory Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "Upper Respiratory Infection",
        "Lower Respiratory Infection"
      ],
      "interventions": [
        {
          "name": "Fitbit",
          "type": "DEVICE"
        },
        {
          "name": "Douglas Bag",
          "type": "DEVICE"
        },
        {
          "name": "Periflux 6000 EPOS",
          "type": "DEVICE"
        },
        {
          "name": "BIOPAC",
          "type": "DEVICE"
        },
        {
          "name": "Flowmet",
          "type": "DEVICE"
        },
        {
          "name": "NIRS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "78 Years",
        "sex": "ALL",
        "summary": "18 Years to 78 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-05-26",
      "completion_date": "2025-08-27",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05035420"
    },
    {
      "nct_id": "NCT03257189",
      "title": "Evaluation of Performance, Usability, and Reliability of a Novel Device for Continuous Collection of Physiological Data",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Normals"
      ],
      "interventions": [
        {
          "name": "Physiological signal monitor",
          "type": "DEVICE"
        },
        {
          "name": "Heart rate and heart rate variability comparison device",
          "type": "DEVICE"
        },
        {
          "name": "Respiration rate comparison device",
          "type": "DEVICE"
        },
        {
          "name": "Activity classification",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "MC10 Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 30,
      "start_date": "2017-07-31",
      "completion_date": "2017-08-30",
      "has_results": true,
      "last_update_posted_date": "2019-01-25",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03257189"
    },
    {
      "nct_id": "NCT07596030",
      "title": "Self-applied taVNS for CIPN",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chemotherapy Induced Peripheral Neuropathy"
      ],
      "interventions": [
        {
          "name": "Transcutaneous Auricular Vagus Nerve Stimulation (taVNS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Miami",
      "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": 36,
      "start_date": "2026-06-02",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Coral Gables, Florida",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07596030"
    },
    {
      "nct_id": "NCT07638267",
      "title": "Does Style Matter: Comparison of Moderate- to Low-intensity Styles of Yoga",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insomnia",
        "Health Adult Subjects",
        "Insomnia Disorder",
        "Heart Health Markers"
      ],
      "interventions": [
        {
          "name": "Vinyasa yoga",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Gentle yoga",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Non-active control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Caitlin Cheruka",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 42,
      "start_date": "2026-06-01",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2026-08-13",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07638267"
    },
    {
      "nct_id": "NCT06784934",
      "title": "Mindful Minds: Mindfulness-Based Neurofeedback for Underrepresented College Students",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Academic Performance",
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "NeuroSky Mindfulness-Based Neurofeedback",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Florida International 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": 39,
      "start_date": "2025-01-28",
      "completion_date": "2025-03-25",
      "has_results": true,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-10-06T16:19:21.018Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06784934"
    }
  ]
}