{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=plethysmography&page=2",
    "query": {
      "intervention": "plethysmography",
      "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=plethysmography&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T10:54:21.701Z",
  "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": "NCT07430254",
      "title": "Finger Plethysmography to Predict Fluid Responsiveness in Healthy Pregnancy and Severe Preeclampsia",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pre-Eclampsia, Severe",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Noninvasive finger plethysmographic cardiac output monitoring",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Standard transthoracic echocardiographic assessment",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Stanford University",
      "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": 88,
      "start_date": "2026-07-01",
      "completion_date": "2028-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07430254"
    },
    {
      "nct_id": "NCT00004575",
      "title": "Effects of Miconazole on Blood Flow",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Miconazole, L-NMMA, Bradykinin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 15,
      "start_date": "2000-02",
      "completion_date": "2001-10",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004575"
    },
    {
      "nct_id": "NCT05350332",
      "title": "Effects of Lung Volume on Upper Airway Patency During Drug Induced Sleep Endoscopy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Negative Pressure Ventilator",
          "type": "DEVICE"
        },
        {
          "name": "Pulmonary Function Testing (PFT)",
          "type": "DEVICE"
        },
        {
          "name": "Transcutaneous Phrenic Nerve Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Percutaneous Phrenic Nerve Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 151,
      "start_date": "2022-06-30",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05350332"
    },
    {
      "nct_id": "NCT04926077",
      "title": "DreamKit Respiratory Effort Signal Validation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea, Obstructive",
        "Sleep Apnea, Central"
      ],
      "interventions": [
        {
          "name": "DreamKit",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Philips Clinical & Medical Affairs Global",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2021-06-22",
      "completion_date": "2021-10-07",
      "has_results": true,
      "last_update_posted_date": "2022-11-30",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04926077"
    },
    {
      "nct_id": "NCT03709199",
      "title": "Long Term Follow up of Children Enrolled in the REDvent Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Respiratory Distress Syndrome, Adult",
        "Ventilator-Induced Lung Injury",
        "Neurocognitive Dysfunction",
        "Quality of Life",
        "Respiration Disorders"
      ],
      "interventions": [
        {
          "name": "Ventilation Inhomogeneity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Diaphragm Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Respiratory Inductance Plethysmography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Functional Residual Capacity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MIP/MEP",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "6 minute walk test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Neurocognitive Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Emotional Health Assessment",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Health Related Quality of Life",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Functional Status",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Respiratory Status Questionnaire",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Hospital Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Month to 18 Years"
      },
      "enrollment_count": 176,
      "start_date": "2018-10-01",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-04-17",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03709199"
    },
    {
      "nct_id": "NCT01909947",
      "title": "Prediction of Extubation Readiness in Extreme Preterm Infants by the Automated Analysis of CardioRespiratory Behavior",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prediction of Extubation Readiness"
      ],
      "interventions": [
        {
          "name": "Cardiorespiratory signal acquisition",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "McGill University Health Centre/Research Institute of the McGill University Health Centre",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 266,
      "start_date": "2013-09",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2019-04-01",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 2,
      "location_summary": "Detroit, Michigan • Providence, Rhode Island",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01909947"
    },
    {
      "nct_id": "NCT04649866",
      "title": "Coronary Artery Disease in Patients With Friedreich's Ataxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Friedreich Ataxia"
      ],
      "interventions": [
        {
          "name": "plethysmography",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 7,
      "start_date": "2021-02-15",
      "completion_date": "2023-09-01",
      "has_results": false,
      "last_update_posted_date": "2023-09-08",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04649866"
    },
    {
      "nct_id": "NCT05587751",
      "title": "Evaluation of Gender-Affirming Treatments on Pulmonary Function in Transgender and Gender Diverse Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hormonal Gender-Affirming Therapy"
      ],
      "interventions": [
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Plethysmography",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2023-02-01",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-18",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05587751"
    },
    {
      "nct_id": "NCT04121923",
      "title": "Validation of a Novel Device for Screening Patients With Symptoms of Obstructive Sleep Apnea",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea, Obstructive"
      ],
      "interventions": [
        {
          "name": "Belun Ring Pulse Oximeter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Belun Technology Company Limited",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 70,
      "start_date": "2018-03-01",
      "completion_date": "2019-05-30",
      "has_results": true,
      "last_update_posted_date": "2026-05-26",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04121923"
    },
    {
      "nct_id": "NCT04349475",
      "title": "Therapeutic Omegas for Triglyceride Suppression",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Intervention Omega 3 Supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Soybean Oil",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "0 Years to 39 Years"
      },
      "enrollment_count": 40,
      "start_date": "2021-11-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-25T10:54:21.701Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04349475"
    }
  ]
}