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COMPANY

Ironwood Pharmaceuticals

HQ: Boston, MA source · ironwoodpharma.com ↗

Clinical Phase 2

Keywords: gastroenterology Irritable Bowel Syndrome With Constipation Chronic Constipation Irritable Bowel Syndrome Characterized by Constipation Gastroesophageal Reflux Disease Interstitial Cystitis Bladder Pain Syndrome Gout Chronic Kidney Disease Irritable Bowel Syndrome With Diarrhea Chronic Idiopathic Constipation Diabetic Gastroparesis Gastroesophageal Reflux Dyspepsia Functional Gastrointestinal Disorders Constipation Hypercholesterolemia Irritable Bowel Syndrome Linaclotide IW-3718 IW-3300 IW-9179 MD-1100 IW-6118 MD-7246 MD-0727

Location: Boston, MA · source · Oct 12, 2026

Profile checked Oct 10, 2026

25Trials (company is sponsor)

Timeline

  1. Trial start 2: A Phase 2 Study of IW-3300 for the Treatment of Bladder Pain in Subjects With Interstitial Cystitis/Bladder Pain Syndrome source ↗
  2. Trial start Phase 1: A Study of Multiple-ascending Doses of IW-3300 in Healthy Subjects source ↗
  3. Trial start Phase 1: A Study of Single Ascending Doses of IW-3300 in Healthy Volunteers source ↗
  4. Trial start Phase 2: A Study of MD-7246 to Treat Abdominal Pain in Patients With Diarrhea-predominant Irritable Bowel Syndrome source ↗
  5. Trial start Phase 1: Study to Evaluate the Effect of IW-3718 on the Pharmacokinetics of Oral Contraceptive, Levothyroxine, Glyburide, and Digoxin in Healthy Adult Volunteers source ↗
  6. Trial start Phase 3: Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs) source ↗
  7. Trial start Phase 3: A Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs) source ↗
  8. Trial start Phase 3: A Trial of Linaclotide 290 μg in Patients With Irritable Bowel Syndrome With Constipation (IBS-C) source ↗
  9. Trial start 4: A Phase 4 Safety and Efficacy Study to Evaluate Lesinurad 200 mg in Participants With Gout and Renal Impairment source ↗
  10. Trial start Phase 4: A Study of the Effect of Linaclotide on Abdominal Girth in Participants With Irritable Bowel Syndrome With Constipation (IBS-C) source ↗
  11. Trial start Phase 2: A Trial of IW-3718 for 8 Weeks in Patients With Symptomatic Gastroesophageal Reflux Disease (GERD) source ↗
  12. Trial start Phase 2: Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C) source ↗
  13. Trial start Phase 3: Trial of Linaclotide in Patients With Chronic Idiopathic Constipation source ↗
  14. Trial start Phase 2: Trial of IW-9179 in Patients With Diabetic Gastroparesis (DGP) source ↗
  15. Trial start Phase 2: Ph2a Study to Evaluate IW-3718 in Patients With Gastroesophageal Reflux Not Completely Responsive to Proton Pump Inhibitors source ↗
  16. Trial start 2: Phase 2a Study of IW-9179 to Treat Functional Dyspepsia source ↗
  17. Trial start Phase 2: Study to Evaluate Efficacy and Safety of IW-6118 in Patients Undergoing Third Molar Extraction source ↗
  18. Trial start Phase 3: Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C) source ↗
  19. Trial start Phase 3: An Open-label, Long-term Safety Study of Linaclotide in Patients With Chronic Constipation or Irritable Bowel Syndrome With Constipation source ↗
  20. Trial start Phase 3: Trial of Linaclotide in Patients With Chronic Constipation source ↗
  21. Trial start 2: Randomized, Double-blind, Dose-range-finding, Phase 2 Study of Linaclotide Administered to Patients With Irritable Bowel Syndrome With Constipation (IBS-C) source ↗
  22. Trial start 2: Dose-range-finding, Phase 2 Trial of Oral Linaclotide Acetate Administered to Patients With Chronic Constipation source ↗
  23. Trial start Phase 2: Study of Oral MD-0727 Administered to Patients With Primary Hypercholesterolemia source ↗
  24. Trial start 2: Phase 2 Study of MD-1100 Acetate Administered for 14 Days to Patients Meeting Criteria for Chronic Constipation source ↗
  25. Trial start 2: Phase 2 Study of MD-1100 Acetate on Gastrointestinal Transit in Patients With C-IBS source ↗

Clinical trials (lead sponsor) 25

RecordTitlePhaseStatusStartPrimary completion
NCT05740007A Phase 2 Study of IW-3300 for the Treatment of Bladder Pain in Subjects With Interstitial Cystitis/Bladder Pain Syndrome2TerminatedMar 28, 2023Jan 23, 2025 (actual)
NCT05362695A Study of Multiple-ascending Doses of IW-3300 in Healthy SubjectsPhase 1CompletedMay 17, 2022Jun 30, 2022 (actual)
NCT05188261A Study of Single Ascending Doses of IW-3300 in Healthy VolunteersPhase 1CompletedJan 18, 2022Mar 9, 2022 (actual)
NCT01107236Study to Evaluate Efficacy and Safety of IW-6118 in Patients Undergoing Third Molar ExtractionPhase 2Completed2010-062010-08 (actual)
NCT02837783A Study of the Effect of Linaclotide on Abdominal Girth in Participants With Irritable Bowel Syndrome With Constipation (IBS-C)Phase 4TerminatedDec 21, 2016Oct 31, 2018 (actual)
NCT03226899A Phase 4 Safety and Efficacy Study to Evaluate Lesinurad 200 mg in Participants With Gout and Renal Impairment4TerminatedJul 19, 2017Feb 25, 2019 (actual)
NCT03561090A Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs)Phase 3TerminatedJun 20, 2018Oct 7, 2020 (actual)
NCT03561883Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs)Phase 3CompletedSep 6, 2018Jul 28, 2020 (actual)
NCT03931785A Study of MD-7246 to Treat Abdominal Pain in Patients With Diarrhea-predominant Irritable Bowel SyndromePhase 2CompletedMay 1, 2019Feb 26, 2020 (actual)
NCT03573908A Trial of Linaclotide 290 μg in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)Phase 3CompletedJun 20, 2018Mar 13, 2019 (actual)
NCT02559206Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)Phase 2CompletedOct 22, 2015Sep 30, 2016 (actual)
NCT02637557A Trial of IW-3718 for 8 Weeks in Patients With Symptomatic Gastroesophageal Reflux Disease (GERD)Phase 2CompletedMar 1, 2016Apr 26, 2017 (actual)
NCT03856970Study to Evaluate the Effect of IW-3718 on the Pharmacokinetics of Oral Contraceptive, Levothyroxine, Glyburide, and Digoxin in Healthy Adult VolunteersPhase 1CompletedMar 11, 2019Jun 25, 2019 (actual)
NCT00730171An Open-label, Long-term Safety Study of Linaclotide in Patients With Chronic Constipation or Irritable Bowel Syndrome With ConstipationPhase 3Completed2008-092012-03 (actual)
NCT02291679Trial of Linaclotide in Patients With Chronic Idiopathic ConstipationPhase 3Completed2014-102015-08 (actual)
NCT02289846Trial of IW-9179 in Patients With Diabetic Gastroparesis (DGP)Phase 2Completed2014-102015-12 (actual)
NCT02030925Ph2a Study to Evaluate IW-3718 in Patients With Gastroesophageal Reflux Not Completely Responsive to Proton Pump InhibitorsPhase 2Completed2014-022014-12 (actual)
NCT01712412Phase 2a Study of IW-9179 to Treat Functional Dyspepsia2Terminated2012-102014-02 (actual)
NCT00938717Trial of Linaclotide in Patients With Irritable Bowel Syndrome With Constipation (IBS-C)Phase 3Completed2009-072010-09 (actual)
NCT00402337Dose-range-finding, Phase 2 Trial of Oral Linaclotide Acetate Administered to Patients With Chronic Constipation2Completed2006-112007-12 (actual)
NCT00460811Randomized, Double-blind, Dose-range-finding, Phase 2 Study of Linaclotide Administered to Patients With Irritable Bowel Syndrome With Constipation (IBS-C)2Completed2007-042008-02 (actual)
NCT00730015Trial of Linaclotide in Patients With Chronic ConstipationPhase 3Completed2008-082009-08 (actual)
NCT00306748Phase 2 Study of MD-1100 Acetate Administered for 14 Days to Patients Meeting Criteria for Chronic Constipation2Completed2006-03Not listed
NCT00404001Study of Oral MD-0727 Administered to Patients With Primary HypercholesterolemiaPhase 2Completed2006-11Not listed
NCT00258193Phase 2 Study of MD-1100 Acetate on Gastrointestinal Transit in Patients With C-IBS2Completed2006-01Not listed
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