{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Zinc+Sulfate",
    "query": {
      "intervention": "Zinc Sulfate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Zinc+Sulfate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T14:20:57.019Z",
  "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": "NCT00683644",
      "title": "Zinc to Treat Tinnitus in the Elderly",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tinnitus"
      ],
      "interventions": [
        {
          "name": "Zinc",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 116,
      "start_date": "2008-01",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2017-12-13",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00683644"
    },
    {
      "nct_id": "NCT01062009",
      "title": "Safety and Dose Escalation Study of Zinc Supplementation in Critically Ill Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "Zinc sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Days",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "30 Days to 10 Years"
      },
      "enrollment_count": 24,
      "start_date": "2008-11",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2019-08-20",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01062009"
    },
    {
      "nct_id": "NCT03819088",
      "title": "Effects on Quality of Life With Zinc Supplementation in Patients With Gastrointestinal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastric Carcinoma",
        "Liver and Intrahepatic Bile Duct Carcinoma",
        "Unresectable Esophageal Carcinoma",
        "Unresectable Pancreatic Carcinoma"
      ],
      "interventions": [
        {
          "name": "Zinc",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 17,
      "start_date": "2019-04-17",
      "completion_date": "2022-03-22",
      "has_results": false,
      "last_update_posted_date": "2025-10-09",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03819088"
    },
    {
      "nct_id": "NCT04370782",
      "title": "Hydroxychloroquine and Zinc With Either Azithromycin or Doxycycline for Treatment of COVID-19 in Outpatient Setting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "Zinc Sulfate",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. Francis Hospital, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2020-04-28",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2020-12-09",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Roslyn, New York",
      "locations": [
        {
          "city": "Roslyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04370782"
    },
    {
      "nct_id": "NCT01899521",
      "title": "Examination of Zinc, S-adenosylmethionine, and Combination Therapy Versus Placebo in Alcoholics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcoholism"
      ],
      "interventions": [
        {
          "name": "Bronchoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Zinc sulfate 220 mg once daily",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "S-adenosylmethionine 400 mg twice daily",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 113,
      "start_date": "2013-05-01",
      "completion_date": "2017-07-31",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01899521"
    },
    {
      "nct_id": "NCT04482686",
      "title": "Trial of Combination Therapy to Treat COVID-19 Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID",
        "Covid-19",
        "Corona Virus Infection",
        "Coronavirus Infection",
        "Coronavirus-19",
        "SARS-CoV2",
        "SARS-CoV Infection"
      ],
      "interventions": [
        {
          "name": "Ivermectin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline Hcl",
          "type": "DRUG"
        },
        {
          "name": "Zinc",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "ProgenaBiome",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31,
      "start_date": "2020-12-09",
      "completion_date": "2022-07-15",
      "has_results": false,
      "last_update_posted_date": "2024-09-24",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Ventura, California",
      "locations": [
        {
          "city": "Ventura",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04482686"
    },
    {
      "nct_id": "NCT00981448",
      "title": "Nutrigenomics of Zinc Supplementation in Insulin Secretion and Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Zinc acetate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 57,
      "start_date": "2009-09",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2022-01-20",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Lancaster, Pennsylvania",
      "locations": [
        {
          "city": "Lancaster",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00981448"
    },
    {
      "nct_id": "NCT01474486",
      "title": "Feasibility and Effectiveness of Micronutrients as Palliative Care Therapy in Patients With Congestive Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure",
        "Ischemic Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "Micronutrients",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phoenix VA Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 40,
      "start_date": "2010-04",
      "completion_date": "2016-02",
      "has_results": true,
      "last_update_posted_date": "2021-06-10",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01474486"
    },
    {
      "nct_id": "NCT04072822",
      "title": "Trial of Anakinra (Plus Zinc) or Prednisone in Patients With Severe Alcoholic Hepatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Alcoholic Hepatitis"
      ],
      "interventions": [
        {
          "name": "Anakinra and Zinc",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 147,
      "start_date": "2020-07-10",
      "completion_date": "2022-08-12",
      "has_results": true,
      "last_update_posted_date": "2025-02-10",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Jacksonville, Florida • Indianapolis, Indiana + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04072822"
    },
    {
      "nct_id": "NCT00109551",
      "title": "Community Trial of Zinc Supplementation on Preschool Child Mortality and Morbidity in Southern Nepal",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nutrition"
      ],
      "interventions": [
        {
          "name": "zinc sulphate dietary supplement",
          "type": "DRUG"
        },
        {
          "name": "iron sulphate-folic acid dietary supplement",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "1 Month to 36 Months"
      },
      "enrollment_count": 58000,
      "start_date": "2001-10",
      "completion_date": "2006-01",
      "has_results": false,
      "last_update_posted_date": "2013-05-01",
      "last_synced_at": "2026-09-02T14:20:57.019Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Ithaca, New York",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Ithaca",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00109551"
    }
  ]
}