{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ferrous+Sulfate+Tablets",
    "query": {
      "intervention": "Ferrous Sulfate Tablets"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 79,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ferrous+Sulfate+Tablets&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T04:50:43.631Z",
  "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": "NCT00994318",
      "title": "Ferric Carboxymaltose (FCM) Assessment in Subjects With Iron Deficiency Anaemia and Non-dialysis-dependent Chronic Kidney Disease (NDD-CKD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Iron Deficiency Anaemia",
        "Chronic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "FCM (Ferric carboxymaltose) high ferritin target",
          "type": "DRUG"
        },
        {
          "name": "FCM (Ferric carboxymaltose) low ferritin target",
          "type": "DRUG"
        },
        {
          "name": "Oral Iron (Ferrous sulphate)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vifor Pharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 626,
      "start_date": "2009-12",
      "completion_date": "2014-02",
      "has_results": true,
      "last_update_posted_date": "2014-05-20",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Wilmington, North Carolina",
      "locations": [
        {
          "city": "Wilmington",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00994318"
    },
    {
      "nct_id": "NCT05314062",
      "title": "Effect of Iron Source on the Growth of Enteric Pathogens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron-deficiency",
        "Iron Deficiency Anemia",
        "Iron Deficiency Anemia Treatment"
      ],
      "interventions": [
        {
          "name": "FeSO4",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ao iron",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Florida State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 10,
      "start_date": "2022-03-18",
      "completion_date": "2022-06-20",
      "has_results": false,
      "last_update_posted_date": "2022-06-22",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Tallahassee, Florida",
      "locations": [
        {
          "city": "Tallahassee",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05314062"
    },
    {
      "nct_id": "NCT00704353",
      "title": "Safety and Tolerability of a Single Dose of FCM vs. Standard of Care in Treating Iron Deficiency Anemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia"
      ],
      "interventions": [
        {
          "name": "Ferric Carboxymaltose",
          "type": "DRUG"
        },
        {
          "name": "Standard Medical Care (SMC)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "American Regent, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 735,
      "start_date": "2008-06",
      "completion_date": "2011-03",
      "has_results": true,
      "last_update_posted_date": "2018-02-20",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Norristown, Pennsylvania",
      "locations": [
        {
          "city": "Norristown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00704353"
    },
    {
      "nct_id": "NCT03457701",
      "title": "Anemia Studies in CKD: Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat- Iron (ASCEND: Fe)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anaemia"
      ],
      "interventions": [
        {
          "name": "Daprodustat",
          "type": "DRUG"
        },
        {
          "name": "rhEPO",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate containing the stable iron isotope (57Fe)",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate containing the stable iron isotope (58Fe)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2019-07-30",
      "completion_date": "2022-07-05",
      "has_results": true,
      "last_update_posted_date": "2024-03-27",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 3,
      "location_summary": "Fort Worth, Texas • Lufkin, Texas • San Antonio, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        },
        {
          "city": "Lufkin",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03457701"
    },
    {
      "nct_id": "NCT01904864",
      "title": "Comparison of NovaFerrum® vs Ferrous Sulfate Treatment in Young Children With Nutritional Iron Deficiency Anemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Iron Deficiency Anemia"
      ],
      "interventions": [
        {
          "name": "elemental iron (NovaFerrum®)",
          "type": "DRUG"
        },
        {
          "name": "elemental iron (Ferrous Sulfate)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Months",
        "maximum_age": "48 Months",
        "sex": "ALL",
        "summary": "9 Months to 48 Months"
      },
      "enrollment_count": 80,
      "start_date": "2013-07",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2017-12-14",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01904864"
    },
    {
      "nct_id": "NCT03438227",
      "title": "Intravenous Iron for Iron-deficiency Anemia in Pregnancy: a Randomized Controlled Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Iron Deficiency Anemia of Pregnancy",
        "Iron Malabsorption"
      ],
      "interventions": [
        {
          "name": "Iron dextran",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate 325mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 38,
      "start_date": "2018-04-15",
      "completion_date": "2019-12-31",
      "has_results": true,
      "last_update_posted_date": "2024-06-11",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana • St Louis, Missouri",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03438227"
    },
    {
      "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": "2026-09-05T04:50:43.631Z",
      "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": "NCT06366698",
      "title": "Intravenous Iron Versus Oral Iron for the Treatment of Iron Deficiency Anemia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Iron Deficiency Anemia of Pregnancy"
      ],
      "interventions": [
        {
          "name": "Venofer 200 MG Per 10 ML Injection",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Arrowhead Regional Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 900,
      "start_date": "2023-11-21",
      "completion_date": "2025-12-30",
      "has_results": false,
      "last_update_posted_date": "2024-04-16",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Colton, California",
      "locations": [
        {
          "city": "Colton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06366698"
    },
    {
      "nct_id": "NCT00224055",
      "title": "Effect of Ferrlecit® Versus Oral Iron on Iron Deficient Chronic Kidney Disease (CKD) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anemia, Iron-Deficiency",
        "Kidney Failure, Chronic"
      ],
      "interventions": [
        {
          "name": "Sodium Ferric Gluconate Complex in Sucrose Injection",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Watson Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2003-04",
      "completion_date": "2004-09",
      "has_results": true,
      "last_update_posted_date": "2012-03-29",
      "last_synced_at": "2026-09-05T04:50:43.631Z",
      "location_count": 23,
      "location_summary": "Tucson, Arizona • Los Angeles, California • Palo Alto, California + 20 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Hines",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00224055"
    },
    {
      "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": "2026-09-05T04:50:43.631Z",
      "location_count": 1,
      "location_summary": "Ames, Iowa",
      "locations": [
        {
          "city": "Ames",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04018300"
    }
  ]
}