{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sympathetic+response",
    "query": {
      "intervention": "Sympathetic response"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 50,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sympathetic+response&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T21:13:48.670Z",
  "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": "NCT05413928",
      "title": "Effect of Meal Composition and Timing Modification on Glucose Metabolism, Body Temperature and Sleep",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes",
        "Type 2 Diabetes",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Time Restrictive Eating- late",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Time Restrictive Eating- early",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Time Restrictive Eating- early with early caloric intake",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Macronutrient-controlled meals",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2023-02-01",
      "completion_date": "2024-10-28",
      "has_results": false,
      "last_update_posted_date": "2026-04-24",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05413928"
    },
    {
      "nct_id": "NCT05521919",
      "title": "Acute Plasma Abeta Responses to Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress Reaction",
        "Stress Physiology"
      ],
      "interventions": [
        {
          "name": "Sympathetic Nervous System Activation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No-stress",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 38,
      "start_date": "2023-12-05",
      "completion_date": "2024-12-10",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05521919"
    },
    {
      "nct_id": "NCT05923840",
      "title": "Chemoreflex and Baroreflex Alterations Causing Postural Tachycardia Syndrome With Orthostatic Hyperpnea and Hypocapnia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome",
        "Hypocapnia",
        "Hyperventilation"
      ],
      "interventions": [
        {
          "name": "Chemoreflex Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Baroreflex testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Orthostatic stress testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "New York Medical College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 39 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2022-09-23",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2023-06-28",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Hawthorne, New York",
      "locations": [
        {
          "city": "Hawthorne",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05923840"
    },
    {
      "nct_id": "NCT02034331",
      "title": "IR and Microvascular Blood Flow in SCI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injury",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Insulin iontophoresis",
          "type": "DRUG"
        },
        {
          "name": "Placebo Iontophoresis",
          "type": "DRUG"
        },
        {
          "name": "Acetylcholine Iontophoresis",
          "type": "DRUG"
        },
        {
          "name": "Heat application",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "James J. Peters Veterans Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "20 Years to 69 Years"
      },
      "enrollment_count": 68,
      "start_date": "2012-12",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-03-07",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02034331"
    },
    {
      "nct_id": "NCT03558022",
      "title": "Vascular Responses to Sympathetic Activation and Altered Shear Rate: The Impact of Hypertension and Sodium Intake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Salt Pills",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Pills",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 34,
      "start_date": "2018-05-15",
      "completion_date": "2021-11-05",
      "has_results": false,
      "last_update_posted_date": "2023-01-13",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03558022"
    },
    {
      "nct_id": "NCT00748059",
      "title": "The Pathophysiology of Orthostatic Hypotension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autonomic Nervous System Diseases",
        "Orthostatic Hypotension",
        "Dopamine Beta-Hydroxylase Deficiency",
        "Orthostatic Intolerance"
      ],
      "interventions": [
        {
          "name": "Standing or upright tilt",
          "type": "PROCEDURE"
        },
        {
          "name": "Microneurography",
          "type": "PROCEDURE"
        },
        {
          "name": "QSweat",
          "type": "PROCEDURE"
        },
        {
          "name": "neck cuff stimulation",
          "type": "DEVICE"
        },
        {
          "name": "phenylephrine,isoproterenol,nitroprusside,propranolol,edrophonium,atropine,tyramine",
          "type": "DRUG"
        },
        {
          "name": "clonidine,yohimbine,metoclopramide,alpha-methyldopa",
          "type": "DRUG"
        },
        {
          "name": "BodPod",
          "type": "PROCEDURE"
        },
        {
          "name": "Eye exam",
          "type": "PROCEDURE"
        },
        {
          "name": "Sleep study",
          "type": "PROCEDURE"
        },
        {
          "name": "Pain response testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Metabolic chamber",
          "type": "PROCEDURE"
        },
        {
          "name": "Brain function studies",
          "type": "PROCEDURE"
        },
        {
          "name": "Bicycle Exercise Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "12 Years to 70 Years"
      },
      "enrollment_count": 10,
      "start_date": "1996-12",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2021-05-12",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00748059"
    },
    {
      "nct_id": "NCT00608725",
      "title": "Pathophysiology of Orthostatic Intolerance",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tachycardia",
        "Postural Orthostatic Tachycardia Syndrome"
      ],
      "interventions": [
        {
          "name": "DAXOR",
          "type": "RADIATION"
        },
        {
          "name": "QSweat",
          "type": "PROCEDURE"
        },
        {
          "name": "Intrinsic Heart Rate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Satish R. Raj",
      "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": 260,
      "start_date": "1996-12",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2025-10-08",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00608725"
    },
    {
      "nct_id": "NCT06533345",
      "title": "VCOM Pain Free Research Collaborative",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Behavior Change Coaching",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nutrition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Autonomic Recalibration",
          "type": "OTHER"
        },
        {
          "name": "Dry Needling",
          "type": "PROCEDURE"
        },
        {
          "name": "Osteopathic Manipulative Treatment",
          "type": "OTHER"
        },
        {
          "name": "Counseling Psychology",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Multiple Treatments",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Edward Via Virginia College of Osteopathic Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 120,
      "start_date": "2024-08-30",
      "completion_date": "2027-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Auburn, Alabama",
      "locations": [
        {
          "city": "Auburn",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06533345"
    },
    {
      "nct_id": "NCT07238465",
      "title": "Exploring Sympathetic Nervous System Function in Individuals With Down Syndrome",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Down Syndrome",
        "Autonomic Dysfunction"
      ],
      "interventions": [
        {
          "name": "Fear Response",
          "type": "OTHER"
        },
        {
          "name": "Cold Stress",
          "type": "OTHER"
        },
        {
          "name": "Pain Response",
          "type": "OTHER"
        },
        {
          "name": "Caffeine",
          "type": "OTHER"
        },
        {
          "name": "12-Hour Fast",
          "type": "OTHER"
        },
        {
          "name": "Maximal Dynamic Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 200,
      "start_date": "2026-04-06",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07238465"
    },
    {
      "nct_id": "NCT02068677",
      "title": "Evaluation of Injection Techniques in Celiac Plexus Neurolysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreatic Cancer",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Sympathetic response",
          "type": "OTHER"
        },
        {
          "name": "no sympathetic response",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AdventHealth",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "19 Years to 89 Years"
      },
      "enrollment_count": 51,
      "start_date": "2013-08",
      "completion_date": "2014-11",
      "has_results": false,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-09-07T21:13:48.670Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02068677"
    }
  ]
}