{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fer-In-Sol+%28ferrous+sulfate%29",
    "query": {
      "intervention": "Fer-In-Sol (ferrous sulfate)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 97,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fer-In-Sol+%28ferrous+sulfate%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-23T10:05:38.361Z",
  "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": "NCT00236977",
      "title": "Comparison of Safety and Efficacy of Intravenous Iron Versus Oral Iron in Chronic Renal Failure Subjects With Anemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia"
      ],
      "interventions": [
        {
          "name": "Venofer",
          "type": "DRUG"
        },
        {
          "name": "Ferrous Sulfate",
          "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": 182,
      "start_date": "2003-08",
      "completion_date": "2004-10",
      "has_results": true,
      "last_update_posted_date": "2020-10-06",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Valley Forge, Pennsylvania",
      "locations": [
        {
          "city": "Valley Forge",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00236977"
    },
    {
      "nct_id": "NCT02327546",
      "title": "Effects of Ferrous Sulfate on the Pharmacokinetics of AKB-6548",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "AKB-6548",
          "type": "DRUG"
        },
        {
          "name": "Ferrous Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Akebia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2014-12",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2018-11-14",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02327546"
    },
    {
      "nct_id": "NCT00760890",
      "title": "Iron and the Breast-Fed Infant: Iron Status and Two Regimens of Iron Supplementation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Fer-In-Sol (ferrous sulfate)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Iron fortified cereal",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Institutes of Health (NIH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "24 Months",
        "sex": "ALL",
        "summary": "1 Month to 24 Months"
      },
      "enrollment_count": 171,
      "start_date": "2001-06",
      "completion_date": "2005-10",
      "has_results": false,
      "last_update_posted_date": "2008-09-26",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00760890"
    },
    {
      "nct_id": "NCT00207610",
      "title": "Iron Supplementation Among Low-Income Postpartum Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anemia"
      ],
      "interventions": [
        {
          "name": "Daily iron supplements of 65 mg a day for 3 months",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Universal anemia screening and treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Selective anemia screening and treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Centers for Disease Control and Prevention",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "13 Years and older · Female only"
      },
      "enrollment_count": 959,
      "start_date": "2003-06",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2009-02-03",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Hattiesburg, Mississippi",
      "locations": [
        {
          "city": "Hattiesburg",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00207610"
    },
    {
      "nct_id": "NCT03523117",
      "title": "Multicenter Randomized Active-controlled Study to Investigate Efficacy & Safety of IV FCM in Pediatric Patients With IDA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Iron Deficiency Anemia"
      ],
      "interventions": [
        {
          "name": "Ferric carboxymaltose",
          "type": "DRUG"
        },
        {
          "name": "Ferrous Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "American Regent, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Year to 17 Years"
      },
      "enrollment_count": 79,
      "start_date": "2019-01-31",
      "completion_date": "2021-01-29",
      "has_results": true,
      "last_update_posted_date": "2022-06-22",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 16,
      "location_summary": "Little Rock, Arkansas • Doral, Florida • Miami, Florida + 10 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Doral",
          "state": "Florida"
        },
        {
          "city": "Doral",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03523117"
    },
    {
      "nct_id": "NCT07199244",
      "title": "The Immediate and Long-term Effects of a Novel Marine-based Iron Supplement in Adult Females",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anemia",
        "Iron Deficiency (Without Anemia)",
        "Iron Absorption"
      ],
      "interventions": [
        {
          "name": "marine-based heme iron",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Nutraceuticals Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "42 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 42 Years · Female only"
      },
      "enrollment_count": 61,
      "start_date": "2024-08-01",
      "completion_date": "2025-10",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Huntsville, Alabama",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07199244"
    },
    {
      "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": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "El Paso, Texas",
      "locations": [
        {
          "city": "El Paso",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00364104"
    },
    {
      "nct_id": "NCT07053475",
      "title": "IRONICA: IRON Repletion In Heart Failure - A Comparison of Oral and IV Approaches",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure",
        "Heart Failure With Reduced Ejection Fraction (HFrEF)",
        "Heart Failure With Preserved Ejection Fraction (HFPEF)",
        "Iron Deficiency",
        "Iron-deficiency Anemia (IDA)"
      ],
      "interventions": [
        {
          "name": "Ferric Carboxymaltose",
          "type": "DRUG"
        },
        {
          "name": "Ferrous Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Syed Hamza Mufarrih",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 42,
      "start_date": "2025-04-02",
      "completion_date": "2026-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 1,
      "location_summary": "Bowling Green, Kentucky",
      "locations": [
        {
          "city": "Bowling Green",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07053475"
    },
    {
      "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": "2026-09-23T10:05:38.361Z",
      "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": "NCT05462704",
      "title": "Intravenous Versus Oral Iron for Treating Iron-Deficiency Anemia in Pregnancy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Iron Deficiency Anemia",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Ferric derisomaltose",
          "type": "DRUG"
        },
        {
          "name": "Ferrous sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Women and Infants Hospital of Rhode Island",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2023-01-17",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2025-06-10",
      "last_synced_at": "2026-09-23T10:05:38.361Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Miami, Florida • Ann Arbor, Michigan + 4 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05462704"
    }
  ]
}