{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Rhythm+control&page=5",
    "query": {
      "intervention": "Rhythm control",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 164,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Rhythm+control&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Rhythm+control&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-26T07:53:05.894Z",
  "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": "NCT02454283",
      "title": "Safety and Efficacy of Vanoxerine for the Conversion of Subjects With Recent Onset Atrial Fibrillation or Flutter to Normal Sinus Rhythm",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrial Fibrillation or Flutter"
      ],
      "interventions": [
        {
          "name": "Vanoxerine HCl",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Laguna Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2015-09",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2016-10-17",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 4,
      "location_summary": "Littleton, Colorado • Washington D.C., District of Columbia • Iowa City, Iowa + 1 more",
      "locations": [
        {
          "city": "Littleton",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02454283"
    },
    {
      "nct_id": "NCT07103733",
      "title": "PRIMARY Ancillary Substudy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mitral Valve Prolapse",
        "Left Ventricular Fibrosis",
        "Ventricular Arrhythmias"
      ],
      "interventions": [
        {
          "name": "Cardiac Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "ZioPatch Monitoring",
          "type": "DEVICE"
        },
        {
          "name": "Myocardial Tissue Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Annetine Gelijns",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2023-10-16",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 16,
      "location_summary": "Los Angeles, California • San Francisco, California • Stanford, California + 11 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07103733"
    },
    {
      "nct_id": "NCT04556149",
      "title": "imPulse™ Una Full-spectrum, Over Clothing E-stethoscope",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Corona Virus Infection",
        "Coronavirus"
      ],
      "interventions": [
        {
          "name": "imPulse™ Una e-stethoscope",
          "type": "DEVICE"
        },
        {
          "name": "Philips Lumify Ultrasound System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Level 42 AI, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 34,
      "start_date": "2020-10-01",
      "completion_date": "2020-12-02",
      "has_results": false,
      "last_update_posted_date": "2020-12-21",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04556149"
    },
    {
      "nct_id": "NCT00490945",
      "title": "Safety and Efficacy of VEC-162 on Circadian Rhythm in Healthy Adult Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Circadian Rhythm Sleep Disorders"
      ],
      "interventions": [
        {
          "name": "VEC-162",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 45,
      "start_date": "2004-07",
      "completion_date": "2005-03",
      "has_results": true,
      "last_update_posted_date": "2014-08-26",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Detroit, Michigan",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00490945"
    },
    {
      "nct_id": "NCT07441265",
      "title": "Does Circadian Misalignment Have Sex-Specific Effects on Metabolism?",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Misalignment",
        "Sex Differences"
      ],
      "interventions": [
        {
          "name": "Day shift",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Night shift",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "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": 36,
      "start_date": "2026-10-01",
      "completion_date": "2030-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07441265"
    },
    {
      "nct_id": "NCT00691574",
      "title": "Melatonin Levels in Smith Magenis Syndrome (SMS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chromosome Disorders"
      ],
      "interventions": [
        {
          "name": "Melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Enviro-light artificial light box",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DEVICE"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "3 Years to 85 Years"
      },
      "enrollment_count": 5,
      "start_date": "1998-09",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00691574"
    },
    {
      "nct_id": "NCT04327596",
      "title": "Radiofrequency (RF) Ablation for Atrial Fibrillation (AF) in Patients With Heart Failure With Preserved Ejection Fraction",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Preserved Ejection Fraction"
      ],
      "interventions": [
        {
          "name": "RF ablation of AF using CARTO 3 and a Thermocool ST SF ablation catheter",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2021-01-25",
      "completion_date": "2021-09-21",
      "has_results": false,
      "last_update_posted_date": "2022-02-23",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 2,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04327596"
    },
    {
      "nct_id": "NCT07634926",
      "title": "Early Time-Restricted Eating for Cardiovascular Health",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension",
        "Breakfast Skipper"
      ],
      "interventions": [
        {
          "name": "Early Time-Restricted Eating (eTRE)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2026-11-30",
      "completion_date": "2029-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07634926"
    },
    {
      "nct_id": "NCT03775954",
      "title": "Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "High Risk Pregnancy",
        "Congenital Heart Disease",
        "Fetal Hydrops",
        "Twin Monochorionic Monoamniotic Placenta",
        "Gastroschisis",
        "Fetal Demise",
        "Stillbirth",
        "Fetal Arrhythmia",
        "Long QT Syndrome",
        "Intrauterine Fetal Death",
        "Sudden Infant Death",
        "Pregnancy Loss",
        "Twin Twin Transfusion Syndrome",
        "Birth Defect",
        "Fetal Cardiac Anomaly",
        "Fetal Cardiac Disorder",
        "Fetal Death",
        "Brugada Syndrome",
        "Fetal Tachycardia"
      ],
      "interventions": [
        {
          "name": "Fetal Magnetocardiogram and Neonatal Electrocardiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Substudy only: Maternal/Infant Pharmacogenomic assessment postnatally",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "GENETIC"
      ],
      "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": 30,
      "start_date": "2018-07-01",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 2,
      "location_summary": "Madison, Wisconsin • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03775954"
    },
    {
      "nct_id": "NCT00891189",
      "title": "Determine the Relationship Between Circadian Rhythms and Nocturnal Asthma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 20,
      "start_date": "2009-01",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2016-09-23",
      "last_synced_at": "2026-10-26T07:53:05.894Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00891189"
    }
  ]
}