{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?page=2&sponsor=Ironwood+Pharmaceuticals%2C+Inc.",
    "query": {
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 38,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=3&sponsor=Ironwood+Pharmaceuticals%2C+Inc.&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=1&sponsor=Ironwood+Pharmaceuticals%2C+Inc.&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T08:56:22.207Z",
  "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": "NCT04110145",
      "title": "Linaclotide Safety and Efficacy in 2 to 5-Year-Old Participants With Functional Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Functional Constipation"
      ],
      "interventions": [
        {
          "name": "Linaclotide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "2 Years to 5 Years"
      },
      "enrollment_count": 35,
      "start_date": "2019-10-14",
      "completion_date": "2021-04-20",
      "has_results": true,
      "last_update_posted_date": "2022-04-26",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Hot Springs, Arkansas • Little Rock, Arkansas + 15 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Corona",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04110145"
    },
    {
      "nct_id": "NCT02030925",
      "title": "Ph2a Study to Evaluate IW-3718 in Patients With Gastroesophageal Reflux Not Completely Responsive to Proton Pump Inhibitors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Gastroesophageal Reflux"
      ],
      "interventions": [
        {
          "name": "IW-3718",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 93,
      "start_date": "2014-02",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2016-08-01",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 10,
      "location_summary": "North Little Rock, Arkansas • Anaheim, California • Monroe, Louisiana + 7 more",
      "locations": [
        {
          "city": "North Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Monroe",
          "state": "Louisiana"
        },
        {
          "city": "Chesterfield",
          "state": "Michigan"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02030925"
    },
    {
      "nct_id": "NCT05740007",
      "title": "A Phase 2 Study of IW-3300 for the Treatment of Bladder Pain in Subjects With Interstitial Cystitis/Bladder Pain Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Interstitial Cystitis",
        "Bladder Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "IW-3300 rectal foam",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 98,
      "start_date": "2023-03-28",
      "completion_date": "2025-02-06",
      "has_results": false,
      "last_update_posted_date": "2025-02-28",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 53,
      "location_summary": "Mobile, Alabama • Scottsdale, Arizona • Tucson, Arizona + 47 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05740007"
    },
    {
      "nct_id": "NCT00948818",
      "title": "Trial of Linaclotide Administered to Patients With Irritable Bowel Syndrome With Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Irritable Bowel Syndrome Characterized by Constipation"
      ],
      "interventions": [
        {
          "name": "Linaclotide 290 micrograms",
          "type": "DRUG"
        },
        {
          "name": "Matching placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 803,
      "start_date": "2009-07",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2013-01-30",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 111,
      "location_summary": "Birmingham, Alabama • Hueytown, Alabama • Huntsville, Alabama + 94 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Hueytown",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00948818"
    },
    {
      "nct_id": "NCT00765999",
      "title": "An Open-Label, Long-Term Safety Study of Linaclotide in Patients With Chronic Constipation or Irritable Bowel Syndrome With Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Constipation",
        "Irritable Bowel Syndrome With Constipation"
      ],
      "interventions": [
        {
          "name": "Linaclotide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1559,
      "start_date": "2008-10-31",
      "completion_date": "2012-01-31",
      "has_results": true,
      "last_update_posted_date": "2019-02-15",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 110,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 94 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00765999"
    },
    {
      "nct_id": "NCT00460811",
      "title": "Randomized, Double-blind, Dose-range-finding, Phase 2 Study of Linaclotide Administered to Patients With Irritable Bowel Syndrome With Constipation (IBS-C)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Irritable Bowel Syndrome With Constipation"
      ],
      "interventions": [
        {
          "name": "Linaclotide Acetate",
          "type": "DRUG"
        },
        {
          "name": "Matching placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 420,
      "start_date": "2007-04",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2013-02-04",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 79,
      "location_summary": "Huntsville, Alabama • Chandler, Arizona • Tuscon, Arizona + 76 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Tuscon",
          "state": "Arizona"
        },
        {
          "city": "Sherwood",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00460811"
    },
    {
      "nct_id": "NCT02637557",
      "title": "A Trial of IW-3718 for 8 Weeks in Patients With Symptomatic Gastroesophageal Reflux Disease (GERD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Gastroesophageal Reflux Disease"
      ],
      "interventions": [
        {
          "name": "IW-3718",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        },
        {
          "name": "PPI",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 282,
      "start_date": "2016-03-01",
      "completion_date": "2017-04-26",
      "has_results": true,
      "last_update_posted_date": "2019-10-15",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 62,
      "location_summary": "Dothan, Alabama • Phoenix, Arizona • Tucson, Arizona + 54 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02637557"
    },
    {
      "nct_id": "NCT00730171",
      "title": "An Open-label, Long-term Safety Study of Linaclotide in Patients With Chronic Constipation or Irritable Bowel Syndrome With Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Irritable Bowel Syndrome With Constipation",
        "Chronic Constipation"
      ],
      "interventions": [
        {
          "name": "Linaclotide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1743,
      "start_date": "2008-09",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2018-02-19",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 116,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 106 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00730171"
    },
    {
      "nct_id": "NCT04166058",
      "title": "Long-term Safety of Linaclotide in Pediatric Participants With FC or IBS-C",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Irritable Bowel Syndrome With Constipation",
        "Functional Constipation"
      ],
      "interventions": [
        {
          "name": "Irritable Bowel Syndrome with Constipation (IBS-C) participants (LIN-MD-63 and LIN-MD-64 completers)",
          "type": "DRUG"
        },
        {
          "name": "Functional Constipation (FC) participants (LIN-MD-62 and LIN-MD-64 completers)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 381,
      "start_date": "2019-11-19",
      "completion_date": "2025-06-05",
      "has_results": true,
      "last_update_posted_date": "2026-01-06",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 65,
      "location_summary": "Birmingham, Alabama • Foley, Alabama • Saraland, Alabama + 50 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Foley",
          "state": "Alabama"
        },
        {
          "city": "Saraland",
          "state": "Alabama"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04166058"
    },
    {
      "nct_id": "NCT00730015",
      "title": "Trial of Linaclotide in Patients With Chronic Constipation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Constipation"
      ],
      "interventions": [
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        },
        {
          "name": "Linaclotide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ironwood Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 643,
      "start_date": "2008-08",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2013-01-30",
      "last_synced_at": "2026-10-13T08:56:22.207Z",
      "location_count": 105,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 98 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00730015"
    }
  ]
}