{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cognitive+performance&page=17",
    "query": {
      "intervention": "Cognitive performance",
      "page": 17
    },
    "page_size": 10
  },
  "pagination": {
    "page": 17,
    "page_size": 10,
    "total_count": 479,
    "total_pages": 48,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cognitive+performance&page=18&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cognitive+performance&page=16&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T10:55:51.192Z",
  "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": "NCT04048122",
      "title": "Feasibility and Effect of a Strategy-Based Cognitive Intervention for Parkinson Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "MultiContext for PD Strategy Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 57,
      "start_date": "2019-11-04",
      "completion_date": "2022-07-01",
      "has_results": true,
      "last_update_posted_date": "2024-11-08",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04048122"
    },
    {
      "nct_id": "NCT03032796",
      "title": "Characterizing the Synergistic Effects of Physical and Cognitive Training on Attention and Working Memory",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "Body-Brain Trainer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Body Trainer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brain Trainer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Expectancy Matched Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "55 Years to 80 Years"
      },
      "enrollment_count": 49,
      "start_date": "2017-01",
      "completion_date": "2020-03",
      "has_results": true,
      "last_update_posted_date": "2025-09-15",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03032796"
    },
    {
      "nct_id": "NCT06489873",
      "title": "Lutein, Zeaxathin, and Fish Oil Supplementation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Performance",
        "Age-Related Macular Degeneration",
        "Bone Loss"
      ],
      "interventions": [
        {
          "name": "Active Comparator (Lutein, zeaxanthin, and fish oil supplement (LZF)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Comparator",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Texas A&M University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 80,
      "start_date": "2024-02-07",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "College Station, Texas",
      "locations": [
        {
          "city": "College Station",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06489873"
    },
    {
      "nct_id": "NCT06062186",
      "title": "Acute Effects of Naturally Occurring Tea and Coffee-based Ingredients on Cognitive Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Change"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "AmaTea Guayusa Extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Lion's Mane",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "The Center for Applied Health Sciences, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 40,
      "start_date": "2023-04-05",
      "completion_date": "2023-09-15",
      "has_results": false,
      "last_update_posted_date": "2023-10-02",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Canfield, Ohio",
      "locations": [
        {
          "city": "Canfield",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06062186"
    },
    {
      "nct_id": "NCT03293823",
      "title": "HARP-Project 1 Cognitive Training",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Social Isolation"
      ],
      "interventions": [
        {
          "name": "VSOP training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "MLA control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2017-10-04",
      "completion_date": "2018-12-14",
      "has_results": false,
      "last_update_posted_date": "2019-07-05",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 4,
      "location_summary": "Fairport, New York • Pittsford, New York • Rochester, New York",
      "locations": [
        {
          "city": "Fairport",
          "state": "New York"
        },
        {
          "city": "Pittsford",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03293823"
    },
    {
      "nct_id": "NCT03752697",
      "title": "Metacognition in Neurological Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain Injuries"
      ],
      "interventions": [
        {
          "name": "metacognitive performance",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Nebraska Lincoln",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "19 Years to 70 Years"
      },
      "enrollment_count": 30,
      "start_date": "2018-12-13",
      "completion_date": "2023-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03752697"
    },
    {
      "nct_id": "NCT03698123",
      "title": "Performance Nutrition for Residents and Fellows",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physician Well-being",
        "Cognitive Function",
        "Diet Modification",
        "Diet Habit",
        "Shift-Work Related Sleep Disturbance",
        "Sleep Deprivation"
      ],
      "interventions": [
        {
          "name": "Dietary Modification",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2018-10-29",
      "completion_date": "2019-05-11",
      "has_results": false,
      "last_update_posted_date": "2022-02-15",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03698123"
    },
    {
      "nct_id": "NCT00297934",
      "title": "Spinal Manipulative Therapy: Dual-Task Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Balance"
      ],
      "interventions": [
        {
          "name": "Pro-adjuster mechanical spinal manipulative device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Logan College of Chiropractic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "20 Years to 40 Years"
      },
      "enrollment_count": 20,
      "start_date": "2006-03",
      "completion_date": "2006-03",
      "has_results": false,
      "last_update_posted_date": "2008-12-18",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Chesterfield, Missouri",
      "locations": [
        {
          "city": "Chesterfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00297934"
    },
    {
      "nct_id": "NCT01036711",
      "title": "Effects of Nicotine on Cognitive Task Performance and Brain Activity as Measured by fMRI",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Nicotine Dependence",
        "Drug Abuse"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute on Drug Abuse (NIDA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 249,
      "start_date": "2002-09-17",
      "completion_date": "2012-11-26",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01036711"
    },
    {
      "nct_id": "NCT02518165",
      "title": "The Effects of A Proprietary Spearmint Extract on Cognitive Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mood",
        "Cognitive Performance",
        "Sleep"
      ],
      "interventions": [
        {
          "name": "Proprietary spearmint extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Kemin Foods LC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 142,
      "start_date": "2015-04",
      "completion_date": "2017-04",
      "has_results": false,
      "last_update_posted_date": "2018-01-31",
      "last_synced_at": "2026-10-24T10:55:51.192Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02518165"
    }
  ]
}