{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photoplethysmography&page=2",
    "query": {
      "intervention": "Photoplethysmography",
      "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=Photoplethysmography&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T11:17:38.329Z",
  "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": "NCT07817550",
      "title": "Multimodal Digital Biomarker Prediction of Acute Clinical Deterioration",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Disease",
        "Disease Progression",
        "Critical Illness",
        "Biomarkers",
        "Aging",
        "Digital Health",
        "Wearable Electronic Devices",
        "Remote Patient Monitoring"
      ],
      "interventions": [
        {
          "name": "Multimodal Digital Biomarker Monitoring",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Truway Health, 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": 10000,
      "start_date": "2026-09-01",
      "completion_date": "2039-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07817550"
    },
    {
      "nct_id": "NCT02978560",
      "title": "Indocyanine Green Tissue Perfusion Monitoring",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Regional Blood Flow",
        "Wound Heal"
      ],
      "interventions": [
        {
          "name": "fluorescence-mediated photoplethysmography",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2018-03-05",
      "completion_date": "2018-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Towson, Maryland",
      "locations": [
        {
          "city": "Towson",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02978560"
    },
    {
      "nct_id": "NCT06574113",
      "title": "Validation of Cuffless Blood Pressure Measurements Using the Perin Health Patch",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Perin Health Patch",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Perin Health Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 85,
      "start_date": "2024-08-15",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-08-28",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Woodland Hills, California",
      "locations": [
        {
          "city": "Woodland Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06574113"
    },
    {
      "nct_id": "NCT06610448",
      "title": "Wearable Evaluation of Ambulatory Readings for Blood Pressure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Normal Blood Pressure",
        "Controlled Hypertension",
        "Uncontrolled Hypertension"
      ],
      "interventions": [
        {
          "name": "ABPMPro",
          "type": "DEVICE"
        },
        {
          "name": "Spacelabs Ambulatory Blood Pressure Monitoring",
          "type": "DEVICE"
        },
        {
          "name": "Aktiia Blood Pressure",
          "type": "DEVICE"
        },
        {
          "name": "LiveMetric",
          "type": "DEVICE"
        },
        {
          "name": "Bpro",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stephen Juraschek",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-06-06",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-11",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06610448"
    },
    {
      "nct_id": "NCT05279066",
      "title": "Validation of Ejection Fraction and Cardiac Output Using Biostrap Wristband",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Biostrap Wristband",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2022-03-15",
      "completion_date": "2022-07-15",
      "has_results": false,
      "last_update_posted_date": "2022-03-15",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05279066"
    },
    {
      "nct_id": "NCT05830773",
      "title": "Resonance Breathing Intervention Opioid Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Resonance Breathing Exercises",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-03-09",
      "completion_date": "2023-08-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-09",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05830773"
    },
    {
      "nct_id": "NCT05440318",
      "title": "Use of Wearable Digital Sensors After mRNA Vaccination in Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Wireless wearable digital devices",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "ModernaTX, 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": 62,
      "start_date": "2022-06-16",
      "completion_date": "2023-02-07",
      "has_results": false,
      "last_update_posted_date": "2023-04-04",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 4,
      "location_summary": "Lenexa, Kansas • Lincoln, Nebraska • Austin, Texas + 1 more",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Lincoln",
          "state": "Nebraska"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05440318"
    },
    {
      "nct_id": "NCT05090995",
      "title": "A PPG Sensor-Based Feedback Intervention for Heavy Drinking Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heavy Drinking",
        "Harmful; Use, Alcohol"
      ],
      "interventions": [
        {
          "name": "Behavioral Self-Management and Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral Self-Management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 60,
      "start_date": "2022-02-23",
      "completion_date": "2023-06-01",
      "has_results": true,
      "last_update_posted_date": "2024-12-13",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05090995"
    },
    {
      "nct_id": "NCT06680700",
      "title": "Controlled Desaturation Study for Perin Health Patch Validation",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Oxygen Saturation Measurement"
      ],
      "interventions": [
        {
          "name": "Perin Health Patch",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Perin Health Devices",
      "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": 25,
      "start_date": "2024-10-21",
      "completion_date": "2025-03-31",
      "has_results": false,
      "last_update_posted_date": "2024-11-08",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Woodland Hills, California",
      "locations": [
        {
          "city": "Woodland Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06680700"
    },
    {
      "nct_id": "NCT05465018",
      "title": "Performance Assessment Study VitalSigns Camera",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Humans",
        "Vital Signs Monitoring"
      ],
      "interventions": [
        {
          "name": "Happy Flow / Baseline",
          "type": "DEVICE"
        },
        {
          "name": "Make-up",
          "type": "DEVICE"
        },
        {
          "name": "Sunglasses",
          "type": "DEVICE"
        },
        {
          "name": "Face mask",
          "type": "DEVICE"
        },
        {
          "name": "Minimum requirements camera",
          "type": "DEVICE"
        },
        {
          "name": "Worst case hardware",
          "type": "DEVICE"
        },
        {
          "name": "Damaged lens",
          "type": "DEVICE"
        },
        {
          "name": "Face or chest outside test frame",
          "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": 30,
      "start_date": "2022-07-07",
      "completion_date": "2022-09-30",
      "has_results": false,
      "last_update_posted_date": "2022-08-18",
      "last_synced_at": "2026-09-26T11:17:38.329Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05465018"
    }
  ]
}