{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+Lens+%28comfilcon+A%29",
    "query": {
      "intervention": "Control Lens (comfilcon A)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+Lens+%28comfilcon+A%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T15:43:54.295Z",
  "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": "NCT02669095",
      "title": "Clinical Evaluation of Approved and Investigational Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Disorder"
      ],
      "interventions": [
        {
          "name": "Investigational Contact Lenses (Test)",
          "type": "DEVICE"
        },
        {
          "name": "Marketed Contact Lenses (Control)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 150,
      "start_date": "2016-01",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2017-06-09",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 4,
      "location_summary": "Sarasota, Florida • Winter Park, Florida • Pickens, South Carolina + 1 more",
      "locations": [
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Winter Park",
          "state": "Florida"
        },
        {
          "city": "Pickens",
          "state": "South Carolina"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02669095"
    },
    {
      "nct_id": "NCT06232590",
      "title": "Performance Comparison of Two Monthly Replacement Silicone Hydrogel Multifocal Lens Types",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Control Lens (comfilcon A)",
          "type": "DEVICE"
        },
        {
          "name": "Test Lens (lehfilcon A)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "42 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "42 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-02-23",
      "completion_date": "2024-07-09",
      "has_results": true,
      "last_update_posted_date": "2025-02-12",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 4,
      "location_summary": "Medina, Minnesota • Vestal, New York • Granville, Ohio + 1 more",
      "locations": [
        {
          "city": "Medina",
          "state": "Minnesota"
        },
        {
          "city": "Vestal",
          "state": "New York"
        },
        {
          "city": "Granville",
          "state": "Ohio"
        },
        {
          "city": "New Bremen",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06232590"
    },
    {
      "nct_id": "NCT02719353",
      "title": "A Dispensing Clinical Trial of Comfilcon A Extended Range Multifocal Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "comfilcon A Extended Range test lens",
          "type": "DEVICE"
        },
        {
          "name": "comfilcon A control lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2016-03",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2020-07-30",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02719353"
    },
    {
      "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": "2026-09-12T15:43:54.295Z",
      "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": "NCT02185105",
      "title": "Clinical Validation of Biofinity Toric MTO (Made To Order) Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "comfilcon A MTO",
          "type": "DEVICE"
        },
        {
          "name": "comfilcon A",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2014-06",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2017-03-07",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02185105"
    },
    {
      "nct_id": "NCT06119191",
      "title": "Clinical Evaluation of Reusable Soft Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Control Lenses (comfilcon A with current process)",
          "type": "DEVICE"
        },
        {
          "name": "Test Lenses (comfilcon A with novel process)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 77,
      "start_date": "2023-11-14",
      "completion_date": "2024-03-01",
      "has_results": true,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 5,
      "location_summary": "Berkeley, California • Bloomington, Indiana • New York, New York + 2 more",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Bloomington",
          "state": "Indiana"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Granville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06119191"
    },
    {
      "nct_id": "NCT01952665",
      "title": "A Multi-Center Study Comparing the Clinical Performance of Two Silicone Hydrogel Lenses Over 1 Month of Daily Wear",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "comfilcon A",
          "type": "DEVICE"
        },
        {
          "name": "lotrafilcon B",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 63,
      "start_date": "2013-10",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2017-06-26",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 6,
      "location_summary": "Campbell, California • Whittier, California • Athens, Georgia + 3 more",
      "locations": [
        {
          "city": "Campbell",
          "state": "California"
        },
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Athens",
          "state": "Georgia"
        },
        {
          "city": "Oak Lawn",
          "state": "Illinois"
        },
        {
          "city": "Pittsburg",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01952665"
    },
    {
      "nct_id": "NCT02642991",
      "title": "Dispensing Study for a New Study Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Phenacite",
          "type": "DEVICE"
        },
        {
          "name": "comfilcon A",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 44,
      "start_date": "2015-11",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2020-12-01",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 2,
      "location_summary": "Berkeley, California • Bloomington, Indiana",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02642991"
    },
    {
      "nct_id": "NCT00597467",
      "title": "Study of Soft Contact Lens Use With 7 Day Extended Wear",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ametropia"
      ],
      "interventions": [
        {
          "name": "VISA (comfilcon A) Silicone Hydrogel Soft contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Acuvue 2 Soft Contact Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 460,
      "start_date": "2006-03",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2020-07-17",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 23,
      "location_summary": "La Mesa, California • San Diego, California • Santa Monica, California + 17 more",
      "locations": [
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00597467"
    },
    {
      "nct_id": "NCT03417557",
      "title": "Clinical Validation Study of Comfilcon A Multifocal Toric Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Comfilcon A lens (test)",
          "type": "DEVICE"
        },
        {
          "name": "Omafilcon B lens (control)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2018-01-12",
      "completion_date": "2018-04-03",
      "has_results": true,
      "last_update_posted_date": "2020-05-04",
      "last_synced_at": "2026-09-12T15:43:54.295Z",
      "location_count": 1,
      "location_summary": "Bloomington, Indiana",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03417557"
    }
  ]
}