{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=astaxanthin",
    "query": {
      "intervention": "astaxanthin"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 21,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=astaxanthin&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T01:50:06.755Z",
  "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": "NCT03664466",
      "title": "Astaxanthin Effects on Osteoarthritis Associated Pain and Inflammatory Indicators",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "astaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Saint Luke's Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2021-04-29",
      "completion_date": "2022-01-25",
      "has_results": false,
      "last_update_posted_date": "2022-04-19",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03664466"
    },
    {
      "nct_id": "NCT03209895",
      "title": "Study to Evaluate the Safety and Efficacy of a Proprietary \"Joint Health\" Dietary Supplement in Subjects With Joint and Connective Tissue Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Joint Pain"
      ],
      "interventions": [
        {
          "name": "Joint Health Product",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucosamine / Chondroitin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "U.S. Nutraceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 135,
      "start_date": "2010-10-08",
      "completion_date": "2011-06-13",
      "has_results": false,
      "last_update_posted_date": "2017-07-06",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Sausalito, California",
      "locations": [
        {
          "city": "Sausalito",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03209895"
    },
    {
      "nct_id": "NCT02397811",
      "title": "Astaxanthin Formulation Bioavailability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bioavailability of Astaxanthin Formulations"
      ],
      "interventions": [
        {
          "name": "Enteric Coated Softgels",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Liposomal astaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Standard Softgel",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Astaxanthin Water Soluble Emulsion",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Astaxanthin Water Dispersible Powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Standard Softgel with Astaxanthin Gel",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Cyanotech Corporation",
      "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": 12,
      "start_date": "2015-06",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-08-09",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02397811"
    },
    {
      "nct_id": "NCT06429059",
      "title": "ROAR-DIGAP: A Widely Inclusive, Largely Virtual Pilot Trial Utilizing DIGAP (Deep Integrated Genomics Analysis Platform) To Personalize Treatments",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Amyotrophic Lateral Sclerosis ALS"
      ],
      "interventions": [
        {
          "name": "Astaxanthin",
          "type": "DRUG"
        },
        {
          "name": "Protandim",
          "type": "DRUG"
        },
        {
          "name": "Melatonin",
          "type": "DRUG"
        },
        {
          "name": "MitoQ",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2024-06-12",
      "completion_date": "2025-06-24",
      "has_results": false,
      "last_update_posted_date": "2025-09-26",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06429059"
    },
    {
      "nct_id": "NCT06460181",
      "title": "Impact of Astaxanthin on Cognition in Recreationally Active Females",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Mental Fatigue"
      ],
      "interventions": [
        {
          "name": "Astaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of North Alabama",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 26,
      "start_date": "2024-08-01",
      "completion_date": "2024-12-14",
      "has_results": true,
      "last_update_posted_date": "2026-05-26",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Florence, Alabama",
      "locations": [
        {
          "city": "Florence",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06460181"
    },
    {
      "nct_id": "NCT04048031",
      "title": "Efficacy and Safety of a Nutraceutical Supplement With Standardized Botanicals in Peri-menopausal and Menopausal Women With Thinning Hair",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hair Thinning"
      ],
      "interventions": [
        {
          "name": "Nutrafol Supplement Capsules",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Capsules",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Ablon Skin Institute Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 70,
      "start_date": "2019-06-19",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-04-06",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Manhattan Beach, California",
      "locations": [
        {
          "city": "Manhattan Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04048031"
    },
    {
      "nct_id": "NCT07063056",
      "title": "Curcumin & Astaxanthin for Lowering Triglyceride Readings and Inflammation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Triglycerides"
      ],
      "interventions": [
        {
          "name": "Curcumin (Longvida™)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Half Dose Curcumin (Longvida™)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Astaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Medinutra LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "21 Years to 59 Years"
      },
      "enrollment_count": 64,
      "start_date": "2025-07-18",
      "completion_date": "2026-09-25",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Dublin, Ohio",
      "locations": [
        {
          "city": "Dublin",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07063056"
    },
    {
      "nct_id": "NCT06768970",
      "title": "Investigating the Effect of Daily CARDIO® Capsules Supplementation on Improved Sleep in Healthy, Urban-Dwelling Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Pollution; Exposure",
        "Cough"
      ],
      "interventions": [
        {
          "name": "CARDIO® salmon oil",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Hofseth Biocare ASA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 131,
      "start_date": "2024-05-14",
      "completion_date": "2025-01-05",
      "has_results": false,
      "last_update_posted_date": "2025-01-10",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06768970"
    },
    {
      "nct_id": "NCT06848101",
      "title": "Eye and Carotenoid Augmentation Research and Evaluation (EyeCARE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vision",
        "Eye Health"
      ],
      "interventions": [
        {
          "name": "Carotenoid Group",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control (placebo) group",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "20 Years to 45 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-03-15",
      "completion_date": "2025-03-14",
      "has_results": false,
      "last_update_posted_date": "2025-02-26",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06848101"
    },
    {
      "nct_id": "NCT04784234",
      "title": "Vision Preservation and Restoration Following a 6 Month Trial of GlaucoCetin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Open Angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "GlaucoCetin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2021-02-01",
      "completion_date": "2022-10-27",
      "has_results": false,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-09-07T01:50:06.755Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04784234"
    }
  ]
}