{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=optical+measurements",
    "query": {
      "intervention": "optical measurements"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 156,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=optical+measurements&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-11T16:24:10.944Z",
  "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      "overall_status": "WITHDRAWN",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": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05746117"
    },
    {
      "nct_id": "NCT03318549",
      "title": "BCI and Evaluation of Visual and Task Performance in Subjects With Eye Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma",
        "Macular Degeneration",
        "Glaucoma Suspect",
        "Optic Neuropathy",
        "Retinal Degeneration",
        "Visual Pathway Disorder"
      ],
      "interventions": [
        {
          "name": "Visual Performance tests",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Brain-computer interface",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DEVICE"
      ],
      "sponsor": "University of Miami",
      "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": 115,
      "start_date": "2018-10-29",
      "completion_date": "2023-05-31",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03318549"
    },
    {
      "nct_id": "NCT01476644",
      "title": "How Has Glaucoma Affected Your Quality of Life?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Clinical evaluation",
          "type": "OTHER"
        },
        {
          "name": "Performance based measures",
          "type": "OTHER"
        },
        {
          "name": "Subjective measures of vision-related quality of life",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 161,
      "start_date": "2011-10",
      "completion_date": "2017-06",
      "has_results": true,
      "last_update_posted_date": "2019-11-15",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01476644"
    },
    {
      "nct_id": "NCT00540540",
      "title": "Measurements of Breast Tissue Optical Properties",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Accessory; Breast Tissue"
      ],
      "interventions": [
        {
          "name": "Diffuse Optical Spectroscopy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 75 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "1995-12",
      "completion_date": "2018-07",
      "has_results": false,
      "last_update_posted_date": "2022-10-20",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 4,
      "location_summary": "Costa Mesa, California • Irvine, California • La Jolla San Diego, California + 1 more",
      "locations": [
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla San Diego",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00540540"
    },
    {
      "nct_id": "NCT07679048",
      "title": "Measuring How Quickly the Eye Focuses After Sustained Viewing of Close-up Images and Videos",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Distance Viewing",
        "Prolonged Near Viewing"
      ],
      "interventions": [
        {
          "name": "Near viewing first",
          "type": "OTHER"
        },
        {
          "name": "Distant viewing first",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rochester Institute of Technology",
      "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": 20,
      "start_date": "2026-06-25",
      "completion_date": "2026-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07679048"
    },
    {
      "nct_id": "NCT06892496",
      "title": "Patient-reported Outcomes of Donor Site Healing Using Different Palatal Protection Techniques",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mucosal Erosion",
        "Gingival Recession"
      ],
      "interventions": [
        {
          "name": "Visual Analog scale (VAS) questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Vacuum-formed retainer (VFR) technique",
          "type": "OTHER"
        },
        {
          "name": "3-D printed acrylic resin stent (3DS) technique",
          "type": "OTHER"
        },
        {
          "name": "Flowable resin composite stent (FRC) technique",
          "type": "OTHER"
        },
        {
          "name": "Photographs of the patient's palate",
          "type": "OTHER"
        },
        {
          "name": "Measuring graft dimensions",
          "type": "OTHER"
        },
        {
          "name": "Chairside Polymer Stent",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2025-03-07",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06892496"
    },
    {
      "nct_id": "NCT02130180",
      "title": "DKA Optic Ultrasound",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Ketoacidosis",
        "Uncontrolled Type 1 Diabetes Mellitus"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Hospitals and Clinics of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "7 Years to 18 Years"
      },
      "enrollment_count": 108,
      "start_date": "2014-04",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2015-07-30",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Minneapolis and Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Minneapolis and Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02130180"
    },
    {
      "nct_id": "NCT03804684",
      "title": "visuALL Field Analyzer (vFA) Compared to Standard Humphrey Automated Perimetry",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma, Open-Angle"
      ],
      "interventions": [
        {
          "name": "Standard Automatic Perimetry Humphrey Field Analyzer",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "visuALL Field Analyzer",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 72,
      "start_date": "2019-01-08",
      "completion_date": "2020-10-20",
      "has_results": true,
      "last_update_posted_date": "2022-06-29",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03804684"
    },
    {
      "nct_id": "NCT04336163",
      "title": "Skin Imaging to Inform Laser Treatments",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Port-Wine Stain",
        "Rosacea",
        "Telangiectasia",
        "Angioma"
      ],
      "interventions": [
        {
          "name": "Optical Coherence Tomography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2019-09-20",
      "completion_date": "2022-07-08",
      "has_results": true,
      "last_update_posted_date": "2024-01-30",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Irvine, California",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04336163"
    },
    {
      "nct_id": "NCT04031521",
      "title": "Near Infrared Spectroscopy in Sickle Cell Pediatric Patients",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Near infrared spectroscopy",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's National Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Years to 21 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-06-26",
      "completion_date": "2023-09-03",
      "has_results": false,
      "last_update_posted_date": "2023-09-14",
      "last_synced_at": "2026-09-11T16:24:10.944Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04031521"
    }
  ]
}