{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Orthostatic+Tachycardia&page=4",
    "query": {
      "condition": "Orthostatic Tachycardia",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 95,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Orthostatic+Tachycardia&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Orthostatic+Tachycardia&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-05T06:38:35.335Z",
  "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": "NCT05043051",
      "title": "Autoimmune Basis for Postural Tachycardia Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Vagal stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 80,
      "start_date": "2022-01-14",
      "completion_date": "2026-07-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-29",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05043051"
    },
    {
      "nct_id": "NCT03919773",
      "title": "IVIG (Gamunex-C) Treatment Study for POTS Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "IVIG",
          "type": "DRUG"
        },
        {
          "name": "Albumin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern 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": 30,
      "start_date": "2018-10-29",
      "completion_date": "2023-12-01",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03919773"
    },
    {
      "nct_id": "NCT00262470",
      "title": "Treatment of Orthostatic Intolerance",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Tachycardia",
        "Chronic Orthostatic Intolerance"
      ],
      "interventions": [
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        },
        {
          "name": "Atomoxetine",
          "type": "DRUG"
        },
        {
          "name": "NO Drug",
          "type": "OTHER"
        },
        {
          "name": "Clonidine",
          "type": "DRUG"
        },
        {
          "name": "Entacapone",
          "type": "DRUG"
        },
        {
          "name": "Entacapone & Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Atomoxetine & Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Indomethacin",
          "type": "DRUG"
        },
        {
          "name": "Mecamylamine",
          "type": "DRUG"
        },
        {
          "name": "Isosorbide Dinitrate",
          "type": "DRUG"
        },
        {
          "name": "Melatonin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Midodrine",
          "type": "DRUG"
        },
        {
          "name": "Modafinil",
          "type": "DRUG"
        },
        {
          "name": "Octreotide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "RADIATION"
        },
        {
          "name": "Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Modafinil & Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Sertraline",
          "type": "DRUG"
        },
        {
          "name": "IV Saline",
          "type": "PROCEDURE"
        },
        {
          "name": "Drinking Water",
          "type": "OTHER"
        },
        {
          "name": "Breathing Device",
          "type": "DEVICE"
        },
        {
          "name": "memantine",
          "type": "DRUG"
        },
        {
          "name": "Abdominal binder",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "DIETARY_SUPPLEMENT",
        "RADIATION",
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Satish R. Raj",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 150,
      "start_date": "1997-04",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2025-10-08",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00262470"
    },
    {
      "nct_id": "NCT01978535",
      "title": "Iron Sucrose in Adolescents With Iron Deficiency and Postural Orthostatic Tachycardia Syndrome (POTS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "Iron infusion",
          "type": "DRUG"
        },
        {
          "name": "Normal saline infusion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "12 Years to 21 Years"
      },
      "enrollment_count": 3,
      "start_date": "2014-12-17",
      "completion_date": "2017-09-08",
      "has_results": true,
      "last_update_posted_date": "2017-11-17",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01978535"
    },
    {
      "nct_id": "NCT03602482",
      "title": "Standing Cognition and Co-morbidities of POTS Evaluation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Tachycardia Syndrome",
        "Ehlers-Danlos Syndrome"
      ],
      "interventions": [
        {
          "name": "Standing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Supine",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "13 Years to 60 Years"
      },
      "enrollment_count": 139,
      "start_date": "2018-06-23",
      "completion_date": "2019-12-17",
      "has_results": true,
      "last_update_posted_date": "2021-04-14",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03602482"
    },
    {
      "nct_id": "NCT06524739",
      "title": "Double-blind, Randomized, Placebo-controlled Study Evaluating Efficacy and Safety of IgPro20 in Post-COVID-19 POTS",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Post-COVID Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "IgPro20",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "CSL Behring",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2024-08-28",
      "completion_date": "2025-07-11",
      "has_results": true,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 34,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 29 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06524739"
    },
    {
      "nct_id": "NCT07189936",
      "title": "Effect of 2-HOBA in Persistent Immune Activation in Long COVID POTS",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Post-Acute COVID-19 Syndrome",
        "Postural Tachycardia Syndrome (POTS)",
        "SARS CoV 2 Infection",
        "Long COVID19"
      ],
      "interventions": [
        {
          "name": "To Measure levels of circulating monocyte/ T cell doublets at Baseline",
          "type": "DRUG"
        },
        {
          "name": "To measure levels of circulating monocyte/ T cell doublets after 28 days of 2 HOBA treatment",
          "type": "DRUG"
        },
        {
          "name": "To measure levels of circulating monocyte/ T cell doublets after 28 days of Placebo treatment",
          "type": "DRUG"
        },
        {
          "name": "To Measure Splanchnic venous capacitance after 28 days of Treatment with 2HOBA",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "To Measure Splanchnic venous capacitance after 28 days of Treatment with Placebo",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "To Measure Orthostatic Tachycardia after 28 days of Treatment with 2HOBA",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "To Measure Orthostatic Tachycardia after 28 days of Treatment with Placebo",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "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": 50,
      "start_date": "2025-12-18",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07189936"
    },
    {
      "nct_id": "NCT07657507",
      "title": "Presentation of Young Adults With and Without Joint Hypermobility",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypermobile Ehlers-Danlos Syndrome",
        "Postural Orthostatic Tachycardia Syndrome (POTS)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Clarkson 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": 100,
      "start_date": "2026-06-20",
      "completion_date": "2036-06-20",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Potsdam, New York",
      "locations": [
        {
          "city": "Potsdam",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07657507"
    },
    {
      "nct_id": "NCT07143669",
      "title": "Screening Study for KIT D816V Mutated Mast Cell Disease in Select Populations",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Clonal Mast Cell Disease",
        "KIT D816V Mutation",
        "Suspected KITD816V Mutated Clonal Mast Cell Disease"
      ],
      "interventions": [
        {
          "name": "Screening",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Blueprint Medicines Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 750,
      "start_date": "2025-10-17",
      "completion_date": "2028-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • San Diego, California • Walnut Creek, California + 18 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07143669"
    },
    {
      "nct_id": "NCT04806620",
      "title": "Unhide® Project: A Digital Health Platform to Collect Lifestyle Data for Brain Inflammation Research",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Post-Acute COVID-19 Syndrome",
        "ME/CFS",
        "Rheumatic Arthritis",
        "Juvenile Rheumatoid Arthritis (JRA)",
        "Psoriatic Arthritis (PsA)",
        "Ankylosing Spondylitis (AS)",
        "Autoimmune Encephalitis",
        "Celiac Disease",
        "Celiac Disease in Children",
        "Chronic Lyme Disease",
        "Post-treatment Lyme Disease Syndrome",
        "Crohn's Disease",
        "Dysautonomia",
        "Anorexia Nervosa",
        "Bulimia Nervosa",
        "ARFID",
        "Avoidant / Restrictive Food Intake Disorder",
        "Ehlers Danlos Syndrome",
        "Endometriosis",
        "Fibromyalgia (FM)",
        "Long COVID",
        "Lupus",
        "Migraines",
        "Mast Cell Activation Syndrome",
        "Multiple Sclerosis",
        "Myalgic Encephalomyelitis (ME)",
        "Myasthenia Gravis, Generalized",
        "Myasthenia Gravis in Children",
        "Narcolepsy",
        "Obsessive Compulsive Disorder (OCD)",
        "PANDAS",
        "Pediatric Acute-onset Neuropsychiatric Syndrome (PANS)",
        "POTS - Postural Orthostatic Tachycardia Syndrome",
        "General Anxiety Disorder, Social Anxiety Disorder",
        "PTSD - Post Traumatic Stress Disorder",
        "Psoriasis",
        "Traumatic Brain Injury",
        "Tourette's Syndrome",
        "Inflammatory Bowel Disease (IBD)",
        "Autoimmune Diseases",
        "Neurological Diseases or Conditions",
        "Psychiatric Disorder",
        "Sjogren's Syndrome",
        "Ulcerative Colitis and Crohn's Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Brain Inflammation Collaborative",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 10000,
      "start_date": "2023-07-05",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-10-05T06:38:35.335Z",
      "location_count": 1,
      "location_summary": "Delafield, Wisconsin",
      "locations": [
        {
          "city": "Delafield",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04806620"
    }
  ]
}