{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+estimation",
    "query": {
      "intervention": "Visual estimation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 36,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+estimation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T09:44:49.362Z",
  "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": "NCT04858477",
      "title": "Use of the Napoleon to Improve Polyp Measurement in Gastroenterology Fellows",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Colonic Polyp"
      ],
      "interventions": [
        {
          "name": "Visual estimation of polyp size",
          "type": "OTHER"
        },
        {
          "name": "Napoleon measurement of polyp size",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2021-06-14",
      "completion_date": "2023-09-26",
      "has_results": false,
      "last_update_posted_date": "2026-02-25",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 4,
      "location_summary": "Brooklyn, New York • New York, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04858477"
    },
    {
      "nct_id": "NCT03546387",
      "title": "Determining Whether Multiple Anesthesia Exposures Affect Cognitive Function for Retinoblastoma Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric Retinoblastoma",
        "Retinoblastoma"
      ],
      "interventions": [
        {
          "name": "Wechsler Intelligence Scale for Children, Fifth Edition (WISC-V)",
          "type": "OTHER"
        },
        {
          "name": "California Verbal Learning Test, Children's Version",
          "type": "OTHER"
        },
        {
          "name": "Beery Developmental Test of Visual Motor Integration, 6th edition",
          "type": "OTHER"
        },
        {
          "name": "Grooved Pegboard Test",
          "type": "OTHER"
        },
        {
          "name": "Behavior Assessment System for Children/Parent Report",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 75,
      "start_date": "2018-05-07",
      "completion_date": "2027-05-07",
      "has_results": false,
      "last_update_posted_date": "2026-06-03",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03546387"
    },
    {
      "nct_id": "NCT04399941",
      "title": "Intravascular Ultrasound in Patients With End-stage Renal Disease on Dialysis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Venography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Intravascular ultrasound (IVUS)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Image processing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Boston Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 50,
      "start_date": "2021-08-03",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2025-12-01",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04399941"
    },
    {
      "nct_id": "NCT05538832",
      "title": "Remote State Representation in Early Psychosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Psychosis",
        "Schizophrenia",
        "Schizo Affective Disorder",
        "Schizoaffective Disorder",
        "Schizophreniform Disorders",
        "Psychotic Disorders",
        "Psychotic Mood Disorders",
        "Psychoses, Affective",
        "Psychosis Nos/Other",
        "Schizophrenia Spectrum and Other Psychotic Disorders"
      ],
      "interventions": [
        {
          "name": "BrainHQ Computerized Cognitive Training - Visual Perception Training Paradigm",
          "type": "DEVICE"
        },
        {
          "name": "BrainHQ Computerized Cognitive Training - Visual Cognitive Control Training Paradigm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 152,
      "start_date": "2022-07-27",
      "completion_date": "2025-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-10-03",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05538832"
    },
    {
      "nct_id": "NCT04577573",
      "title": "Cognitive-based Prosthetics to Improve Grasp and Reaching After SCI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries",
        "Hand Weakness"
      ],
      "interventions": [
        {
          "name": "Cognition glove",
          "type": "DEVICE"
        },
        {
          "name": "Sensory brace",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 13,
      "start_date": "2021-05-17",
      "completion_date": "2023-11-30",
      "has_results": true,
      "last_update_posted_date": "2025-04-25",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04577573"
    },
    {
      "nct_id": "NCT00167362",
      "title": "Cognitive Enhancement Therapy for Early-Stage Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Cognitive enhancement therapy (CET)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enriched supportive therapy (EST)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "51 Years",
        "sex": "ALL",
        "summary": "16 Years to 51 Years"
      },
      "enrollment_count": 67,
      "start_date": "2001-08",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-01-10",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00167362"
    },
    {
      "nct_id": "NCT06853275",
      "title": "The Influence of Movement Velocity Biofeedback on Muscle Activation and Self Perception in Older Adults With Sarcopenia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sarcopenia",
        "Sarcopenia in Elderly",
        "Age-associated Muscle Loss"
      ],
      "interventions": [
        {
          "name": "Experimental: External Focus",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Other: Internal Focus",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "60 Years to 95 Years"
      },
      "enrollment_count": 60,
      "start_date": "2025-08-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06853275"
    },
    {
      "nct_id": "NCT06517901",
      "title": "Fusion or Cognitive Ultrasound-guided Biopsy to Detect Prostate Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer",
        "Diagnosis"
      ],
      "interventions": [
        {
          "name": "Software fusion prostate biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cognitive fusion prostate biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Albany Medical College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 1306,
      "start_date": "2025-04-18",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-10-03",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 3,
      "location_summary": "Burlington, Massachusetts • Albany, New York • Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Burlington",
          "state": "Massachusetts"
        },
        {
          "city": "Albany",
          "state": "New York"
        },
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06517901"
    },
    {
      "nct_id": "NCT01964638",
      "title": "Use of Multi-Parametric MRI With Prostate Biopsy for Cancer Diagnosis.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Targeted Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "MALE",
        "summary": "40 Years to 75 Years · Male only"
      },
      "enrollment_count": 126,
      "start_date": "2012-06",
      "completion_date": "2013-03",
      "has_results": false,
      "last_update_posted_date": "2013-10-17",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01964638"
    },
    {
      "nct_id": "NCT01212731",
      "title": "Skull Base and Low Grade Glioma Neurocognitive Magnetic Resonance Imaging (MRI) Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Malignancy",
        "Glioma",
        "Radiotherapy"
      ],
      "interventions": [
        {
          "name": "Photon treatment plans",
          "type": "RADIATION"
        },
        {
          "name": "Proton Treatment Plans",
          "type": "RADIATION"
        },
        {
          "name": "Neurocognitive evaluation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Advanced MRI imaging",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2010-09",
      "completion_date": "2017-10-17",
      "has_results": false,
      "last_update_posted_date": "2020-04-08",
      "last_synced_at": "2026-09-07T09:44:49.362Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01212731"
    }
  ]
}