{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HRV",
    "query": {
      "condition": "HRV"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 44,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HRV&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T14:25:59.210Z",
  "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": "NCT05260489",
      "title": "Apollo Remote Observational Sleep Study",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sleep Quality",
        "Heart Rate"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Apollo Neuroscience, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2022-01-18",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2024-07-09",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05260489"
    },
    {
      "nct_id": "NCT03207750",
      "title": "This Study Will Evaluate the Immunogenicity, Reactogenicity and Safety of the Routine Infant Vaccines Pediarix®, Hiberix® and Prevenar 13® When Co-administered With GlaxoSmithKline (GSK) Biologicals' Liquid Human Rotavirus Vaccine (HRV) as Compared to GSK's Licensed Lyophilized Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Rotavirus Infection",
        "Rotavirus Vaccines"
      ],
      "interventions": [
        {
          "name": "Rotarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pediarix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hiberix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevenar 13",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Weeks",
        "maximum_age": "12 Weeks",
        "sex": "ALL",
        "summary": "6 Weeks to 12 Weeks"
      },
      "enrollment_count": 1280,
      "start_date": "2017-09-14",
      "completion_date": "2019-03-01",
      "has_results": true,
      "last_update_posted_date": "2020-12-29",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 47,
      "location_summary": "Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 40 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Daly City",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03207750"
    },
    {
      "nct_id": "NCT06365723",
      "title": "Effects of Walking in Greenspace and the Built Environment in Adults With Prediabetes: A Randomized Crossover Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes",
        "Heart Rate Variability (HRV)",
        "Stress and Anxiety",
        "Stress Biomarkers"
      ],
      "interventions": [
        {
          "name": "Nature-based Walking",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Built-environment/Commercial Walking",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "25 Years to 64 Years"
      },
      "enrollment_count": 216,
      "start_date": "2024-06-06",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 3,
      "location_summary": "Lake Forest, Illinois • Winfield, Illinois • Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Lake Forest",
          "state": "Illinois"
        },
        {
          "city": "Winfield",
          "state": "Illinois"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06365723"
    },
    {
      "nct_id": "NCT02426476",
      "title": "HRV Biofeedback in Pain Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Neuromuscular Pain"
      ],
      "interventions": [
        {
          "name": "active heart rate variability biofeedback training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "sham HRVB training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 116,
      "start_date": "2015-06-10",
      "completion_date": "2020-09-30",
      "has_results": true,
      "last_update_posted_date": "2021-06-02",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Columbia, South Carolina",
      "locations": [
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02426476"
    },
    {
      "nct_id": "NCT05659277",
      "title": "The Effects of Stress & Irregular Shift Hours on First Responders",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Workplace Stress",
        "Mental Health",
        "HRV",
        "EEG",
        "PTSD"
      ],
      "interventions": [
        {
          "name": "Workplace Stress and Irregular shift hours",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Endominance",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2022-10-12",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2022-12-22",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Irvine, California",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05659277"
    },
    {
      "nct_id": "NCT03692624",
      "title": "Use of Heart Rate Variability (HRV) Biofeedback for Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Biofeedback",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Prisma Health-Upstate",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2015-05-10",
      "completion_date": "2020-02-07",
      "has_results": false,
      "last_update_posted_date": "2020-03-06",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Greenville, South Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03692624"
    },
    {
      "nct_id": "NCT06964100",
      "title": "Exploring the Relationship Between Heart Rate Variability (HRV), Training Load, and Endurance Performance",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Rate Variability"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "PepsiCo Global R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 200,
      "start_date": "2025-04-04",
      "completion_date": "2025-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-05-09",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06964100"
    },
    {
      "nct_id": "NCT03077945",
      "title": "A Cognitive Behavioral Stress Intervention for Women Who Smoke",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Cigarette",
        "Smoking Cessation",
        "Stress",
        "Stress, Emotional",
        "Stress Reaction"
      ],
      "interventions": [
        {
          "name": "heart rate variability biofeedback and cognitive reappraisal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "control tasks",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": 70,
      "start_date": "2016-12-01",
      "completion_date": "2017-05-30",
      "has_results": false,
      "last_update_posted_date": "2018-03-14",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03077945"
    },
    {
      "nct_id": "NCT01184755",
      "title": "RCT of Effects of Device-guided Breathing on Ambulatory BP",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Relaxation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "RESPeRate",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": 253,
      "start_date": "2008-05",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2017-05-16",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 2,
      "location_summary": "New Brunswick, New Jersey • New York, New York",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01184755"
    },
    {
      "nct_id": "NCT06093100",
      "title": "Wearable Technology to Evaluate Hyperglycemia and HRV in DMD - Longitudinal Aim",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Duchenne Muscular Dystrophy"
      ],
      "interventions": [
        {
          "name": "wearable technology",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "10 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2024-07-10",
      "completion_date": "2030-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-06",
      "last_synced_at": "2026-07-22T14:25:59.210Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06093100"
    }
  ]
}