{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Measurement+of+PPG+waveforms",
    "query": {
      "intervention": "Measurement of PPG waveforms"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T20:17:16.184Z",
  "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": "NCT07362641",
      "title": "Clinical Validation of Non-Contact Vital Signs",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vital Sign Evaluation"
      ],
      "interventions": [
        {
          "name": "SmartSpectra Vital Signs Monitor measurement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Presage Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 111,
      "start_date": "2025-03-28",
      "completion_date": "2025-04-21",
      "has_results": true,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07362641"
    },
    {
      "nct_id": "NCT05035420",
      "title": "A Noninvasive Multimodal Biosensing Device for Screening and Monitoring Response to Treatment of Infectious Respiratory Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "Upper Respiratory Infection",
        "Lower Respiratory Infection"
      ],
      "interventions": [
        {
          "name": "Fitbit",
          "type": "DEVICE"
        },
        {
          "name": "Douglas Bag",
          "type": "DEVICE"
        },
        {
          "name": "Periflux 6000 EPOS",
          "type": "DEVICE"
        },
        {
          "name": "BIOPAC",
          "type": "DEVICE"
        },
        {
          "name": "Flowmet",
          "type": "DEVICE"
        },
        {
          "name": "NIRS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "78 Years",
        "sex": "ALL",
        "summary": "18 Years to 78 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-05-26",
      "completion_date": "2025-08-27",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05035420"
    },
    {
      "nct_id": "NCT03430102",
      "title": "Indicor Validation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Indicor",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Vixiar Medical, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 289,
      "start_date": "2018-02-14",
      "completion_date": "2020-03-12",
      "has_results": false,
      "last_update_posted_date": "2020-06-17",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 4,
      "location_summary": "Newark, Delaware • Browns Mills, New Jersey • Stony Brook, New York + 1 more",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Browns Mills",
          "state": "New Jersey"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        },
        {
          "city": "Lancaster",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03430102"
    },
    {
      "nct_id": "NCT01831583",
      "title": "Assessment of PPG & PAT to Detect Upper Airway Obstruction in Patients With Obstructive Sleep Apnea",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea, Obstructive"
      ],
      "interventions": [
        {
          "name": "Measurement of PPG waveforms",
          "type": "DEVICE"
        },
        {
          "name": "Measurement of Pulse Arrival Time (PAT)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sotera Wireless, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2013-05",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2013-04-15",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 1,
      "location_summary": "Escondido, California",
      "locations": [
        {
          "city": "Escondido",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01831583"
    },
    {
      "nct_id": "NCT05856422",
      "title": "Respiratory Rate Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [],
      "conditions": [
        "Measure Accuracy of Respiratory Rate"
      ],
      "interventions": [
        {
          "name": "Respiratory rate measure based on PPG",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Gabi SmartCare",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Minute",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "1 Minute to 12 Years"
      },
      "enrollment_count": 24,
      "start_date": "2022-12-05",
      "completion_date": "2022-12-29",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 1,
      "location_summary": "Louisville, Colorado",
      "locations": [
        {
          "city": "Louisville",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05856422"
    },
    {
      "nct_id": "NCT04510753",
      "title": "Data Collection of Arterial Line Waveform and BP Values",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Blood Pressure Measurement"
      ],
      "interventions": [
        {
          "name": "Arterial catheterization kit",
          "type": "DEVICE"
        },
        {
          "name": "GE Datex-Ohmeda Finger Clip Pulse Oximeter Sensor",
          "type": "DEVICE"
        },
        {
          "name": "NIBP Cuff (GE Healthcare)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sensifree Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 100,
      "start_date": "2019-11-22",
      "completion_date": "2020-12-09",
      "has_results": false,
      "last_update_posted_date": "2022-06-07",
      "last_synced_at": "2026-09-07T20:17:16.184Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04510753"
    }
  ]
}