{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Spherical+Lenses&page=2",
    "query": {
      "intervention": "Spherical Lenses",
      "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=Spherical+Lenses&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T00:26:29.642Z",
  "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": "NCT04535310",
      "title": "Wear Experience With Daily Contact Lenses Over a Long Day",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contact Lens"
      ],
      "interventions": [
        {
          "name": "Precision1® Daily Disposable Contact Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 35,
      "start_date": "2020-10-13",
      "completion_date": "2021-03-31",
      "has_results": true,
      "last_update_posted_date": "2023-02-08",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04535310"
    },
    {
      "nct_id": "NCT06408649",
      "title": "Post-market Clinical Follow-up Study of Alcon TOTAL30® Contact Lenses (Lehfilcon A)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ametropia",
        "Myopia",
        "Hyperopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Lehfilcon A spherical contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Lehfilcon A toric contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2024-11-15",
      "completion_date": "2025-04-22",
      "has_results": false,
      "last_update_posted_date": "2025-07-20",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06408649"
    },
    {
      "nct_id": "NCT02624791",
      "title": "Evaluating and Improving Functional Driving Vision of Patients With Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "1-DAY ACUVUE® MOIST contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "No contact lenses",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 11,
      "start_date": "2012-09",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2020-03-06",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02624791"
    },
    {
      "nct_id": "NCT02310126",
      "title": "Handling Comparison Between Two Contact Lens Types",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "etafilcon A (multi-focal)",
          "type": "DEVICE"
        },
        {
          "name": "etafilcon A (sphere)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 195,
      "start_date": "2014-11-01",
      "completion_date": "2014-12-01",
      "has_results": true,
      "last_update_posted_date": "2018-06-19",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 8,
      "location_summary": "Jacksonville, Florida • Sarasota, Florida • Winter Park, Florida + 3 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Winter Park",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02310126"
    },
    {
      "nct_id": "NCT07176429",
      "title": "Pseudoaccommodation of the Light Adjustable Lens: A Comparitive Study",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amplitude of Pseudoaccommodation"
      ],
      "interventions": [
        {
          "name": "Measurement of refractive error and amplitude of pseudoaccommodation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Helm Vision Group",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 180,
      "start_date": "2025-09-22",
      "completion_date": "2026-04",
      "has_results": false,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 1,
      "location_summary": "Valencia, California",
      "locations": [
        {
          "city": "Valencia",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07176429"
    },
    {
      "nct_id": "NCT03970512",
      "title": "Apioc Toric/Spherical Single Vision Contact Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Apioc-A and Apioc-S Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Lentechs, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 51,
      "start_date": "2019-05-31",
      "completion_date": "2021-03-18",
      "has_results": false,
      "last_update_posted_date": "2022-01-19",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 2,
      "location_summary": "Athens, Ohio • Powell, Ohio",
      "locations": [
        {
          "city": "Athens",
          "state": "Ohio"
        },
        {
          "city": "Powell",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03970512"
    },
    {
      "nct_id": "NCT00766168",
      "title": "High Refractive Index Material 510(k)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "HDS HI 1.54; pahrifocon A",
          "type": "OTHER"
        },
        {
          "name": "FluoroPerm 30 RGP; paflufocon C",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 76,
      "start_date": "2008-01",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2012-06-14",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 8,
      "location_summary": "Lake Elsinore, California • Englewood, Colorado • East Lansing, Michigan + 5 more",
      "locations": [
        {
          "city": "Lake Elsinore",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "East Lansing",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00766168"
    },
    {
      "nct_id": "NCT04534517",
      "title": "Clinical Evaluation of a Daily Wear Reusable Multifocal Optical Design in a Presbyopic Population",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "JJV Investigational Multifocal Contact Lens",
          "type": "DEVICE"
        },
        {
          "name": "ACUVUE OASYS® with HYDRACLEAR® PLUS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 119,
      "start_date": "2020-08-07",
      "completion_date": "2020-09-29",
      "has_results": true,
      "last_update_posted_date": "2022-01-13",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 11,
      "location_summary": "Jacksonville, Florida • Longwood, Florida • Maitland, Florida + 8 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Longwood",
          "state": "Florida"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Roswell",
          "state": "Georgia"
        },
        {
          "city": "Bloomington",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04534517"
    },
    {
      "nct_id": "NCT02759471",
      "title": "One Month Dispensing Study Comparing the Clinical Performance of the Comfilcon A Sphere Lenses Compared to Comfilcon A Asphere Lenses.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "comfilcon A sphere lens (control)",
          "type": "DEVICE"
        },
        {
          "name": "comfilcon A asphere lens (test)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "18 Years to 34 Years"
      },
      "enrollment_count": 54,
      "start_date": "2016-04",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2020-07-29",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 4,
      "location_summary": "Whittier, California • Medina, Minnesota • Vestal, New York + 1 more",
      "locations": [
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Medina",
          "state": "Minnesota"
        },
        {
          "city": "Vestal",
          "state": "New York"
        },
        {
          "city": "Athens",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02759471"
    },
    {
      "nct_id": "NCT03707821",
      "title": "Design Validation of Senofilcon A With New UV-blocking Additive",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "senofilcon A TEST Lens",
          "type": "DEVICE"
        },
        {
          "name": "senofilcon A CONTROL Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 253,
      "start_date": "2018-10-01",
      "completion_date": "2018-11-01",
      "has_results": true,
      "last_update_posted_date": "2019-12-05",
      "last_synced_at": "2026-09-28T00:26:29.642Z",
      "location_count": 10,
      "location_summary": "Cupertino, California • Maitland, Florida • Tallahassee, Florida + 7 more",
      "locations": [
        {
          "city": "Cupertino",
          "state": "California"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Tallahassee",
          "state": "Florida"
        },
        {
          "city": "Bloomington",
          "state": "Illinois"
        },
        {
          "city": "Pittsburg",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03707821"
    }
  ]
}