{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Precision1+Sphere",
    "query": {
      "intervention": "Precision1 Sphere"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T06:17:35.581Z",
  "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": "NCT04527978",
      "title": "Clinical Comparison of 2 Daily Disposable Contact Lenses - Pilot Study 1",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors",
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Verofilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Nesofilcon A contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2020-09-15",
      "completion_date": "2020-11-06",
      "has_results": true,
      "last_update_posted_date": "2021-11-23",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 4,
      "location_summary": "Maitland, Florida • Medina, Minnesota • Powell, Ohio + 1 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Medina",
          "state": "Minnesota"
        },
        {
          "city": "Powell",
          "state": "Ohio"
        },
        {
          "city": "Wichita Falls",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04527978"
    },
    {
      "nct_id": "NCT04840563",
      "title": "Surface Refractive Index Shift of Kalifilcon A Compared With Dailies Total1 and Precision1 Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contact Lens Wear"
      ],
      "interventions": [
        {
          "name": "kalifilcon A daily disposable spherical soft contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Dailies Total1 (delefilcon A) daily disposable spherical soft contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Precision1 (verofilcon A) daily disposable spherical soft contact lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2021-04-07",
      "completion_date": "2021-04-15",
      "has_results": true,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04840563"
    },
    {
      "nct_id": "NCT05138783",
      "title": "Clinical Performance of Two Daily Disposable Soft Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Verofilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Nesofilcon A contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2022-01-12",
      "completion_date": "2022-03-07",
      "has_results": true,
      "last_update_posted_date": "2023-04-18",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 8,
      "location_summary": "Maitland, Florida • Tallahassee, Florida • Franklin Park, Illinois + 5 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Tallahassee",
          "state": "Florida"
        },
        {
          "city": "Franklin Park",
          "state": "Illinois"
        },
        {
          "city": "Shawnee Mission",
          "state": "Kansas"
        },
        {
          "city": "Medina",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05138783"
    },
    {
      "nct_id": "NCT04296877",
      "title": "Evaluation of Wear Experience With a Daily Disposable Contact Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contact Lens"
      ],
      "interventions": [
        {
          "name": "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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2020-03-10",
      "completion_date": "2020-12-01",
      "has_results": true,
      "last_update_posted_date": "2023-03-07",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04296877"
    },
    {
      "nct_id": "NCT04772560",
      "title": "Toric Contact Lens Digital Performance and Comfort Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Precision1 for Astigmatism",
          "type": "DEVICE"
        },
        {
          "name": "Precision1 Sphere",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Kathryn Richdale",
      "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": 30,
      "start_date": "2021-03-16",
      "completion_date": "2021-12-13",
      "has_results": true,
      "last_update_posted_date": "2022-03-10",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04772560"
    },
    {
      "nct_id": "NCT04865354",
      "title": "Clinical Comparison of Two Daily Disposable Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Verofilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Somofilcon A contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 170,
      "start_date": "2021-05-17",
      "completion_date": "2021-06-27",
      "has_results": true,
      "last_update_posted_date": "2022-07-06",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 8,
      "location_summary": "San Francisco, California • Maitland, Florida • Tallahassee, Florida + 5 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Tallahassee",
          "state": "Florida"
        },
        {
          "city": "Franklin Park",
          "state": "Illinois"
        },
        {
          "city": "Shawnee Mission",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04865354"
    },
    {
      "nct_id": "NCT05096156",
      "title": "Evaluation of Wear Experience With Daily Contact Lenses",
      "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": 30,
      "start_date": "2021-05-28",
      "completion_date": "2021-12-17",
      "has_results": true,
      "last_update_posted_date": "2023-11-08",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05096156"
    },
    {
      "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": "2026-09-04T06:17:35.581Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04535310"
    },
    {
      "nct_id": "NCT04528017",
      "title": "Clinical Comparison of 2 Daily Disposable Contact Lenses - Pilot Study 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors",
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Verofilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Somofilcon A contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2020-09-01",
      "completion_date": "2020-10-16",
      "has_results": true,
      "last_update_posted_date": "2021-11-11",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 4,
      "location_summary": "Maitland, Florida • Medina, Minnesota • Powell, Ohio + 1 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Medina",
          "state": "Minnesota"
        },
        {
          "city": "Powell",
          "state": "Ohio"
        },
        {
          "city": "Wichita Falls",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04528017"
    },
    {
      "nct_id": "NCT06462456",
      "title": "Post-market Clinical Follow-up Study of Alcon PRECISION1™ Spherical and PRECISION1™ for Astigmatism Soft Contact Lenses",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Verofilcon A spherical soft contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Verofilcon A toric soft contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 140,
      "start_date": "2024-08-30",
      "completion_date": "2025-03-11",
      "has_results": false,
      "last_update_posted_date": "2025-07-20",
      "last_synced_at": "2026-09-04T06:17:35.581Z",
      "location_count": 12,
      "location_summary": "San Diego, California • Jacksonville, Florida • Orlando, Florida + 9 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Blue Island",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06462456"
    }
  ]
}