{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Iron+Sulfate&page=2",
    "query": {
      "intervention": "Iron Sulfate",
      "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=Iron+Sulfate&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T22:33:08.550Z",
  "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": "NCT00136266",
      "title": "Adherence With Iron Sprinkles Among High-Risk Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia",
        "Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Ferrous sulphate drops with vitamins A, D, and C",
          "type": "DRUG"
        },
        {
          "name": "Ferrous fumarate sprinkles with vitamins and minerals",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Centers for Disease Control and Prevention",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Months",
        "maximum_age": "7 Months",
        "sex": "ALL",
        "summary": "5 Months to 7 Months"
      },
      "enrollment_count": 128,
      "start_date": "2005-03",
      "completion_date": "2005-12",
      "has_results": false,
      "last_update_posted_date": "2016-02-03",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00136266"
    },
    {
      "nct_id": "NCT04839185",
      "title": "Placental Lesions in Fetal Growth Restrictions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Fetal Growth Retardation"
      ],
      "interventions": [
        {
          "name": "Ferumoxytol infusion",
          "type": "DRUG"
        },
        {
          "name": "MRI scan",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 3,
      "start_date": "2021-04-15",
      "completion_date": "2021-10-06",
      "has_results": true,
      "last_update_posted_date": "2025-08-22",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04839185"
    },
    {
      "nct_id": "NCT02245321",
      "title": "Strategies to Reduce Iron Deficiency",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Ferrous gluconate- 19 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ferrous gluconate- 38 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Letter Group- Information Provided",
          "type": "OTHER"
        },
        {
          "name": "Letter - No Information Provided",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Westat",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 702,
      "start_date": "2011-06",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 4,
      "location_summary": "Farmington, Connecticut • Rockville, Maryland • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02245321"
    },
    {
      "nct_id": "NCT03706638",
      "title": "Daily vs Intermittent Iron Therapy in Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron Deficiency Anemia of Pregnancy"
      ],
      "interventions": [
        {
          "name": "Ferrous Sulfate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "UConn Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 46,
      "start_date": "2018-10-25",
      "completion_date": "2020-03-23",
      "has_results": false,
      "last_update_posted_date": "2020-04-21",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03706638"
    },
    {
      "nct_id": "NCT04018300",
      "title": "Iron Supplementation and Side Effects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron Deficiency Anemia",
        "Iron Overload"
      ],
      "interventions": [
        {
          "name": "Ferrous sulfate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Aspiron",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Iowa State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2018-01-08",
      "completion_date": "2018-04-18",
      "has_results": false,
      "last_update_posted_date": "2019-07-12",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Ames, Iowa",
      "locations": [
        {
          "city": "Ames",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04018300"
    },
    {
      "nct_id": "NCT05007899",
      "title": "Alternate Day Versus Daily Oral Iron Therapy in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Iron Deficiency Anemia",
        "Heavy Menstrual Bleeding",
        "Abnormal Uterine Bleeding"
      ],
      "interventions": [
        {
          "name": "Ferrous sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "22 Years",
        "sex": "FEMALE",
        "summary": "9 Years to 22 Years · Female only"
      },
      "enrollment_count": 13,
      "start_date": "2020-12-21",
      "completion_date": "2022-12-22",
      "has_results": true,
      "last_update_posted_date": "2023-09-13",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05007899"
    },
    {
      "nct_id": "NCT04497012",
      "title": "Iron Supplementation and Intestinal Health",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anemia of Prematurity",
        "Very Low Birth Weight Infant"
      ],
      "interventions": [
        {
          "name": "2mg/kg/day Iron Sulfate",
          "type": "DRUG"
        },
        {
          "name": "6 mg/kg/day Iron Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "6 Months",
        "sex": "ALL",
        "summary": "1 Day to 6 Months"
      },
      "enrollment_count": 183,
      "start_date": "2020-11-17",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-01-22",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04497012"
    },
    {
      "nct_id": "NCT03991169",
      "title": "Oral Iron in Children With Chronic Kidney Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chronic Kidney Insufficiency",
        "Chronic Kidney Diseases"
      ],
      "interventions": [
        {
          "name": "Ferrous Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 40,
      "start_date": "2019-04-19",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-11",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 2,
      "location_summary": "New York, New York • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03991169"
    },
    {
      "nct_id": "NCT00364104",
      "title": "Helicobacter Pylori Eradication Trial to Reduce Iron Deficiency in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Quadruple sequential Helicobacter pylori eradication + iron sulfate",
          "type": "DRUG"
        },
        {
          "name": "Quadruple sequential Helicobacter pylori eradication therapy",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "36 Months",
        "maximum_age": "120 Months",
        "sex": "ALL",
        "summary": "36 Months to 120 Months"
      },
      "enrollment_count": 125,
      "start_date": "2007-03",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2009-06-30",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "El Paso, Texas",
      "locations": [
        {
          "city": "El Paso",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00364104"
    },
    {
      "nct_id": "NCT01772680",
      "title": "Zinc and Diabetes in Patients With Thalassemia: a Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Thalassemia"
      ],
      "interventions": [
        {
          "name": "Zinc Supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2012-11",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2020-11-24",
      "last_synced_at": "2026-09-28T22:33:08.550Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01772680"
    }
  ]
}