{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optical+measurement",
    "query": {
      "intervention": "Optical measurement"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 155,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optical+measurement&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T07:58:56.614Z",
  "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": "NCT05746117",
      "title": "Continual vs. Routine Home Blood Pressure Monitoring and Management in Diverse Community Practice: CHANGE-BP",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Aktiia Device",
          "type": "DEVICE"
        },
        {
          "name": "Upper arm cuff",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Aktiia SA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2024-12-15",
      "completion_date": "2026-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-02-18",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05746117"
    },
    {
      "nct_id": "NCT02780063",
      "title": "Medications Effect on Lenstar Measurements",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "Lenstar Biometer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2015-09-18",
      "completion_date": "2018-07-24",
      "has_results": false,
      "last_update_posted_date": "2019-01-25",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02780063"
    },
    {
      "nct_id": "NCT03694626",
      "title": "Objectively Diagnose and Monitor Treatment of Light Sensitivity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Photophobia",
        "Traumatic Brain Injury",
        "Migraine"
      ],
      "interventions": [
        {
          "name": "Pupillography",
          "type": "DEVICE"
        },
        {
          "name": "Ocular Coherence Tomography (OCT)",
          "type": "DEVICE"
        },
        {
          "name": "Wrist-watch sensor device",
          "type": "DEVICE"
        },
        {
          "name": "Videography",
          "type": "DEVICE"
        },
        {
          "name": "Electrophysiology",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Randy Kardon",
      "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": 120,
      "start_date": "2019-07-11",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-24",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03694626"
    },
    {
      "nct_id": "NCT06994949",
      "title": "Assessing CSF Flow Dynamics in Pediatric Hemorrhagic Hydrocephalus",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Post-hemorrhagic Hydrocephalus (PHH)"
      ],
      "interventions": [
        {
          "name": "fCTOT cap",
          "type": "DEVICE"
        },
        {
          "name": "NIRF planar imaging",
          "type": "DEVICE"
        },
        {
          "name": "ICG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Eva Sevick",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "6 Months",
        "sex": "ALL",
        "summary": "Up to 6 Months"
      },
      "enrollment_count": 20,
      "start_date": "2025-01-14",
      "completion_date": "2029-01-03",
      "has_results": false,
      "last_update_posted_date": "2025-05-29",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06994949"
    },
    {
      "nct_id": "NCT06063148",
      "title": "Neonatal Pulse Oximetry Disparities Due to Skin Pigmentation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Skin Pigment",
        "Pulse Oximetry"
      ],
      "interventions": [
        {
          "name": "Enrolled Participant",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "10 Days",
        "sex": "ALL",
        "summary": "Up to 10 Days"
      },
      "enrollment_count": 163,
      "start_date": "2022-04-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-18",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 2,
      "location_summary": "Sacramento, California • Jackson, Mississippi",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06063148"
    },
    {
      "nct_id": "NCT02508298",
      "title": "Surrogate Markers of Portal Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Portal Hypertension",
        "Cirrhosis"
      ],
      "interventions": [
        {
          "name": "HVPG",
          "type": "PROCEDURE"
        },
        {
          "name": "Indocyanine Green Retention test",
          "type": "DRUG"
        },
        {
          "name": "Liver stiffness measurement",
          "type": "DEVICE"
        },
        {
          "name": "Spleen stiffness measurement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "VA Connecticut Healthcare System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 41,
      "start_date": "2014-04",
      "completion_date": "2019-07",
      "has_results": false,
      "last_update_posted_date": "2019-11-25",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 2,
      "location_summary": "New Haven, Connecticut • West Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02508298"
    },
    {
      "nct_id": "NCT03161327",
      "title": "Digital Ankle Brachial Index (ABI) as a Screening Tool in Detecting Peripheral Arterial Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Artery Disease",
        "Amputation",
        "Smoking",
        "Diabetes",
        "Hypercholesterolemia",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "ABI using QuantaFlo™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "St. Louis University",
      "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": 238,
      "start_date": "2017-07-15",
      "completion_date": "2017-09-14",
      "has_results": true,
      "last_update_posted_date": "2018-12-11",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03161327"
    },
    {
      "nct_id": "NCT00488332",
      "title": "An Exploratory Study on Optical Assessment of Oral Mucositis",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Cancer",
        "Oral Mucositis"
      ],
      "interventions": [
        {
          "name": "Optical Coherence Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorescence Spectroscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Pain Scale Questionnaire",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2006-03",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2012-07-20",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00488332"
    },
    {
      "nct_id": "NCT05784103",
      "title": "Comparison of Tissue Oxygenation Measurement Using Multimodal Devices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oxygen Saturation"
      ],
      "interventions": [
        {
          "name": "Clarifi Modulum",
          "type": "DEVICE"
        },
        {
          "name": "Perimed PeriFlux 5000",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch Oxygen Sensor",
          "type": "DEVICE"
        },
        {
          "name": "Innovo iP 900AP",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Indiana University",
      "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": 20,
      "start_date": "2022-03-09",
      "completion_date": "2022-07-07",
      "has_results": true,
      "last_update_posted_date": "2023-11-29",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05784103"
    },
    {
      "nct_id": "NCT06565780",
      "title": "Evaluation of the Performance and Safety of the Aktiia Spot-check Optical Blood Pressure Monitoring Device At Wrist Against Double Auscultation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Device under test evaluation against references",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Aktiia SA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "22 Years to 59 Years"
      },
      "enrollment_count": 140,
      "start_date": "2024-09-23",
      "completion_date": "2025-01-10",
      "has_results": false,
      "last_update_posted_date": "2025-02-18",
      "last_synced_at": "2026-09-03T07:58:56.614Z",
      "location_count": 1,
      "location_summary": "Broomfield, Colorado",
      "locations": [
        {
          "city": "Broomfield",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06565780"
    }
  ]
}