{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Antioxidant+supplement&page=2",
    "query": {
      "intervention": "Antioxidant supplement",
      "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=Antioxidant+supplement&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T02:14:48.435Z",
  "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": "NCT01221714",
      "title": "Toxicity and Safety Evaluation of an Omega-3 Fatty Acid and a Multivitamin and Antioxidant Nutritional Preparation",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "AmeriSciences LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 200,
      "start_date": "2010-10",
      "completion_date": "2013-11",
      "has_results": false,
      "last_update_posted_date": "2018-01-24",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 3,
      "location_summary": "Pearl, Mississippi • Charlotte, North Carolina • Logan, West Virginia",
      "locations": [
        {
          "city": "Pearl",
          "state": "Mississippi"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Logan",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01221714"
    },
    {
      "nct_id": "NCT01289925",
      "title": "Effect of Selenium Intervention on Inflammation in Older Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Selenium",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Sugar Pill Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": "110 Years",
        "sex": "ALL",
        "summary": "70 Years to 110 Years"
      },
      "enrollment_count": 182,
      "start_date": "2006-02",
      "completion_date": "2012-01-20",
      "has_results": false,
      "last_update_posted_date": "2018-04-09",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01289925"
    },
    {
      "nct_id": "NCT06071728",
      "title": "Restoring Glycocalyx Thickness in Older Adults to Improve Vascular Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aging",
        "Vascular Stiffness",
        "Endothelial Dysfunction"
      ],
      "interventions": [
        {
          "name": "Endocalyx Pro (Microvascular Health Solutions, US Patent Number: 9943572)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 24,
      "start_date": "2022-10-10",
      "completion_date": "2024-01-31",
      "has_results": false,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06071728"
    },
    {
      "nct_id": "NCT03486145",
      "title": "Effect of Nitrate-rich Fruit and Vegetable Supplement on Blood Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Blood Pressure",
        "Flow Mediated Dilation"
      ],
      "interventions": [
        {
          "name": "fruit and vegetable juice supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Arizona 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": 57,
      "start_date": "2015-11-16",
      "completion_date": "2016-03-30",
      "has_results": false,
      "last_update_posted_date": "2018-04-03",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03486145"
    },
    {
      "nct_id": "NCT03646825",
      "title": "Effect of Natural Antioxidant Supplement on Sperm DNA Fragmentation",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Observe Effect of Antioxidant on Sperm DNA Fragmention"
      ],
      "interventions": [
        {
          "name": "Natural Antioxidant supplement",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Colorado Center for Reproductive Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 54,
      "start_date": "2018-08-01",
      "completion_date": "2022-10-01",
      "has_results": false,
      "last_update_posted_date": "2023-02-23",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Lone Tree, Colorado",
      "locations": [
        {
          "city": "Lone Tree",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03646825"
    },
    {
      "nct_id": "NCT02213588",
      "title": "Effects of Plant Concentrate Blend on Oxidative Stress in Healthy Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "AOX blend",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Access Business Group",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 120,
      "start_date": "2013-07",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2014-08-11",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Buena Park, California",
      "locations": [
        {
          "city": "Buena Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02213588"
    },
    {
      "nct_id": "NCT05648630",
      "title": "Improving Exercise Rehabilitation Efficacy Outcomes Veterans Peripheral Artery Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Artery Disease (D058729)",
        "Oxidative Stress (D018384)",
        "Inflammation (D007249)"
      ],
      "interventions": [
        {
          "name": "PB125",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Exercise Rehabilitation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2023-07-03",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 2,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05648630"
    },
    {
      "nct_id": "NCT02802566",
      "title": "BMI-based Vitamins in Obese Pregnant Women",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "BMI-based prenatal vitamin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Standard prenatal vitamin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 146,
      "start_date": "2014-12",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02802566"
    },
    {
      "nct_id": "NCT04234529",
      "title": "Impact of AMATEA™️ on Physiological Measures and Gaming Performance in Active Gamers: a Placebo Controlled, Double-blind, Randomized Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "AMATEA™",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Caffeine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Memphis",
      "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": 59,
      "start_date": "2020-02-01",
      "completion_date": "2021-06-11",
      "has_results": false,
      "last_update_posted_date": "2021-12-09",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04234529"
    },
    {
      "nct_id": "NCT03241732",
      "title": "PET-MRI in Chronic Traumatic Brain Injury (CTBI)",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Anti-inflammatory Diet",
          "type": "OTHER"
        },
        {
          "name": "N-acetyl Cysteine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Neuro Emotive Technique",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 150,
      "start_date": "2017-06-07",
      "completion_date": "2027-07-08",
      "has_results": false,
      "last_update_posted_date": "2025-07-29",
      "last_synced_at": "2026-09-27T02:14:48.435Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Villanova, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Villanova",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03241732"
    }
  ]
}