{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart+Rate+Variability-+Biofeedback&page=2",
    "query": {
      "intervention": "Heart Rate Variability- Biofeedback",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Heart+Rate+Variability-+Biofeedback&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T15:11:28.907Z",
  "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": "NCT00852878",
      "title": "The Treatment of Recurrent Abdominal Pain in Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Recurrent Abdominal Pain"
      ],
      "interventions": [
        {
          "name": "Biofeedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral Protocol",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 0,
      "start_date": "2009-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-06-23",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00852878"
    },
    {
      "nct_id": "NCT03023332",
      "title": "Tailored Health Self-Management Interventions for Highly Distressed Family Caregivers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Distress",
        "Caregiver"
      ],
      "interventions": [
        {
          "name": "Resourcefulness Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Biofeedback training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Bipolar Education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 310,
      "start_date": "2017-06-12",
      "completion_date": "2021-06-30",
      "has_results": true,
      "last_update_posted_date": "2023-11-15",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03023332"
    },
    {
      "nct_id": "NCT03972137",
      "title": "Heart Rate Variability Biofeedback for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Cognitive-Behavioral Smoking Cessation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Heart Rate Variability Biofeedback (HRVB)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Transdermal Nicotine patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 10,
      "start_date": "2019-04-24",
      "completion_date": "2020-02-20",
      "has_results": true,
      "last_update_posted_date": "2020-08-25",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03972137"
    },
    {
      "nct_id": "NCT04738084",
      "title": "Meru Health Program Versus Waitlist Control for Adults With Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Meru Health Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Meru Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-08-21",
      "completion_date": "2021-12-30",
      "has_results": false,
      "last_update_posted_date": "2023-07-13",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04738084"
    },
    {
      "nct_id": "NCT05913505",
      "title": "Heart Rate Variability Biofeedback Following Traumatic Brain Injury",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "OSC-",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham Young University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-02-15",
      "completion_date": "2024-04-24",
      "has_results": false,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "Provo, Utah",
      "locations": [
        {
          "city": "Provo",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05913505"
    },
    {
      "nct_id": "NCT03271086",
      "title": "Relaxation Breathing Training for Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress Disorder",
        "Biofeedback"
      ],
      "interventions": [
        {
          "name": "The StressEraser",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Breathe2Relax",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reminder text messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Boston Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Years to 11 Years"
      },
      "enrollment_count": 0,
      "start_date": "2020-10",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2020-11-17",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03271086"
    },
    {
      "nct_id": "NCT01568177",
      "title": "Cardiac Autonomic Function in Women with Microvascular Coronary Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Microvascular Coronary Dysfunction"
      ],
      "interventions": [
        {
          "name": "Mental Stress Testing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peripheral Arterial Tonometry (PAT) Testing",
          "type": "OTHER"
        },
        {
          "name": "Heart Rate Variability (HRV)",
          "type": "OTHER"
        },
        {
          "name": "RESPeRATE Breathing Trial",
          "type": "OTHER"
        },
        {
          "name": "SPECT cardiac scan with 123I-mIBG and Myoview",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 105,
      "start_date": "2011-02",
      "completion_date": "2024-02",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01568177"
    },
    {
      "nct_id": "NCT07218237",
      "title": "Mindfulness and Wearable Biosensors to Prevent Hypertensive Disorders of Pregnancy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Mindfulness training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Garmin Vivoactive 4 watch",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 90,
      "start_date": "2026-04-28",
      "completion_date": "2028-10",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 2,
      "location_summary": "Providence, Rhode Island • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07218237"
    },
    {
      "nct_id": "NCT03241732",
      "title": "PET-MRI in Chronic Traumatic Brain Injury (CTBI)",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Anti-inflammatory Diet",
          "type": "OTHER"
        },
        {
          "name": "N-acetyl Cysteine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Neuro Emotive Technique",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Jefferson University",
      "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": 150,
      "start_date": "2017-06-07",
      "completion_date": "2027-07-08",
      "has_results": false,
      "last_update_posted_date": "2025-07-29",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Villanova, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Villanova",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03241732"
    },
    {
      "nct_id": "NCT05224050",
      "title": "Heart Rate Variability Biofeedback for Smoking Cessation Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Cognitive-Behavioral Smoking Cessation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Heart Rate Variability Biofeedback",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 28,
      "start_date": "2021-11-29",
      "completion_date": "2023-06-15",
      "has_results": true,
      "last_update_posted_date": "2024-05-01",
      "last_synced_at": "2026-09-08T15:11:28.907Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05224050"
    }
  ]
}