{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Bioavailability+of+Carotenoids",
    "query": {
      "condition": "Bioavailability of Carotenoids"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-27T10:49:52.924Z",
  "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": "NCT01696773",
      "title": "Carotenoid and Flavonoid Absorption From Red and Tangerine-Type Tomatoes",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Carotenoid and Flavonoid Absorption"
      ],
      "interventions": [
        {
          "name": "Tangerine tomato juice",
          "type": "OTHER"
        },
        {
          "name": "Red tomato juice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 12,
      "start_date": "2012-10",
      "completion_date": "2027-12",
      "has_results": true,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01696773"
    },
    {
      "nct_id": "NCT00680355",
      "title": "Bioavailability of Golden Rice Carotenoids in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "golden rice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "corn oil 0g",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "corn oil 10g",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "coren oil 5 g",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 14,
      "start_date": "2004-08",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2013-07-01",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00680355"
    },
    {
      "nct_id": "NCT05319548",
      "title": "Plant Pigments for Human Health: Impact of Lycopene and Anthocyanins on Bioefficacy of Provitamin A Carotenoids From Carrots",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Purple-Red Carrot Juice",
          "type": "OTHER"
        },
        {
          "name": "Red Carrot Juice",
          "type": "OTHER"
        },
        {
          "name": "Purple Carrot Juice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": 12,
      "start_date": "2022-10-31",
      "completion_date": "2023-05-11",
      "has_results": false,
      "last_update_posted_date": "2025-12-18",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05319548"
    },
    {
      "nct_id": "NCT02679794",
      "title": "Impact of Egg Consumption on Carotenoid and Vitamin D Bioavailability in Pre- and Post-menopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Menopause"
      ],
      "interventions": [
        {
          "name": "Egg consumption",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "19 Years and older · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2015-12",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2018-01-11",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02679794"
    },
    {
      "nct_id": "NCT02348164",
      "title": "Human Lycopene and Beta-cryptoxanthin Absorption From Citrus Fruit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bioavailability of Carotenoids"
      ],
      "interventions": [
        {
          "name": "Pink grapefruit first followed by tangerines two weeks later",
          "type": "OTHER"
        },
        {
          "name": "Tangerines first followed by pink grapefruit two weeks later",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "USDA, Western Human Nutrition Research Center",
      "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": 23,
      "start_date": "2007-12",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2015-01-28",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02348164"
    },
    {
      "nct_id": "NCT00636350",
      "title": "Bioavailability of Pepper Carotenoids in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Pepper",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 5,
      "start_date": "2007-09",
      "completion_date": "2010-06-30",
      "has_results": false,
      "last_update_posted_date": "2017-10-12",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00636350"
    },
    {
      "nct_id": "NCT01748916",
      "title": "Comparison of Carotenoid Bioavailability From Fresh Papaya, Tomato and Carrot",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Focus of Study: Carotenoid Absorption"
      ],
      "interventions": [
        {
          "name": "Papaya",
          "type": "OTHER"
        },
        {
          "name": "Carrot",
          "type": "OTHER"
        },
        {
          "name": "Tomato",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 16,
      "start_date": "2011-06",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01748916"
    },
    {
      "nct_id": "NCT00356252",
      "title": "Biological Functions of Carotenoids in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oxidative DNA Damage"
      ],
      "interventions": [
        {
          "name": "mixed carotenoids",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 70 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2002-04",
      "completion_date": "2003-12",
      "has_results": false,
      "last_update_posted_date": "2008-07-24",
      "last_synced_at": "2026-06-27T10:49:52.924Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00356252"
    }
  ]
}