{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=chondroitin+sulfate",
    "query": {
      "intervention": "chondroitin sulfate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 43,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=chondroitin+sulfate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T01:58:21.297Z",
  "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": "NCT01271218",
      "title": "Effects of Glucosamine and Chondroitin Supplementation in Women With Knee Osteoarthritis Participating in an Exercise and Weight Loss Program",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Diet",
          "type": "OTHER"
        },
        {
          "name": "Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Texas A&M University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 70 Years · Female only"
      },
      "enrollment_count": 36,
      "start_date": "2005-11",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2011-01-06",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "College Station, Texas",
      "locations": [
        {
          "city": "College Station",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01271218"
    },
    {
      "nct_id": "NCT03963323",
      "title": "Glucosamine and Chondroitin in Gut in Preventing People From Inflammation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Subject"
      ],
      "interventions": [
        {
          "name": "Glucosamine Sulfate/Chondroitin Sulfate Tablet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 9,
      "start_date": "2018-05-11",
      "completion_date": "2019-03-31",
      "has_results": false,
      "last_update_posted_date": "2019-05-24",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03963323"
    },
    {
      "nct_id": "NCT01689363",
      "title": "Evaluation of the Allergenicity of AMPHADASE INJECTION (Hyaluronidase Injection USP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Allergic Skin Reaction"
      ],
      "interventions": [
        {
          "name": "Hyaluronidase",
          "type": "DRUG"
        },
        {
          "name": "Histamine",
          "type": "DRUG"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amphastar Pharmaceuticals, Inc.",
      "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": 253,
      "start_date": "2012-09",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2017-01-20",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 5,
      "location_summary": "Eugene, Oregon • Lake Oswego, Oregon • Portland, Oregon + 2 more",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        },
        {
          "city": "Lake Oswego",
          "state": "Oregon"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Renton",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01689363"
    },
    {
      "nct_id": "NCT00198458",
      "title": "Hypersensitivity Reaction to Vitrase (Ovine Hyaluronidase)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Hypersensitivity"
      ],
      "interventions": [
        {
          "name": "Vitrase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2004-07",
      "completion_date": "2004-09",
      "has_results": false,
      "last_update_posted_date": "2013-03-18",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00198458"
    },
    {
      "nct_id": "NCT00198549",
      "title": "Evaluation of Vitrase as an Adjuvant to Increase Absorption and Dispersion of Other Injected Anesthetics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Vitrase (ovine hyaluronidase) Lyophilized",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2004-09",
      "completion_date": "2005-03",
      "has_results": false,
      "last_update_posted_date": "2013-03-19",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00198549"
    },
    {
      "nct_id": "NCT01682694",
      "title": "Glucosamine and Chondroitin Effects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Glucosamine and Chondroitin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 20,
      "start_date": "2012-09",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2014-05-28",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01682694"
    },
    {
      "nct_id": "NCT00198484",
      "title": "Evaluation of Vitrase as a Spreading Agent",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Vitrase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 108,
      "start_date": "2004-10",
      "completion_date": "2005-02",
      "has_results": false,
      "last_update_posted_date": "2013-03-14",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 18,
      "location_summary": "Newport Beach, California • Sacramento, California • Littleton, Colorado + 15 more",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Littleton",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Fort Oglethorpe",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00198484"
    },
    {
      "nct_id": "NCT05322148",
      "title": "Cyclosporine 0.1% / Loteprednol 0.2% Effect on Anterior Segment Normalization",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dry Eye"
      ],
      "interventions": [
        {
          "name": "Klarity CL, Cylcosporine 0.1%/Loteprednol Etabonate 0.2% Preservative Free",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Research Insight LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2022-06-03",
      "completion_date": "2022-11-21",
      "has_results": false,
      "last_update_posted_date": "2023-01-04",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 3,
      "location_summary": "Hemet, California • Laguna Hills, California • Brecksville, Ohio",
      "locations": [
        {
          "city": "Hemet",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Brecksville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05322148"
    },
    {
      "nct_id": "NCT00691678",
      "title": "Glucosamine and Chondroitin for Aromatase Inhibitor Induced Joint Symptoms in Women With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Joint Pain"
      ],
      "interventions": [
        {
          "name": "Chondroitin",
          "type": "DRUG"
        },
        {
          "name": "Glucosamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dawn L. Hershman",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 53,
      "start_date": "2008-10",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2022-11-08",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00691678"
    },
    {
      "nct_id": "NCT00198510",
      "title": "Safety and Efficacy Study of Vitrase for Clearance of Severe Vitreous Hemorrhage",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Vitreous Hemorrhage",
        "Diabetic Retinopathy"
      ],
      "interventions": [
        {
          "name": "Vitrase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 750,
      "start_date": "1998-11",
      "completion_date": "2003-03",
      "has_results": false,
      "last_update_posted_date": "2013-03-15",
      "last_synced_at": "2026-09-27T01:58:21.297Z",
      "location_count": 61,
      "location_summary": "Tucson, Arizona • Beverly Hills, California • Chula Vista, California + 51 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00198510"
    }
  ]
}