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Phase 3 Completed N=1,054 Randomized Triple-blind Treatment

The Plecanatide Irritable Bowel Syndrome With Constipation Study (IBS-C)

Irritable Bowel Syndrome Characterized by Constipation
Source: ClinicalTrials.gov NCT02387359 ↗
Enrolled (actual)
1,054
Serious AEs
1.1%
Results posted
Jun 2019
Primary outcomePrimary: Number of Overall Responders - ITT Population — 63; 106; 103 Participants
◆ Published Evidence
Emerging
13citations · ~2 / year
Evaluation of Plecanatide for the Treatment of Chronic Idiopathic Constipation and Irritable Bowel Syndrome With Constipation in Patients 65 Years or Older.
Clinical therapeutics · 2020 · Open access · Likely link

Summary

This study in patients with IBS-C is a randomized, double-blind, placebo-controlled, parallel-group clinical trial with 12 weeks of study drug therapy.

Linked Publications (3)

  • Evaluation of Plecanatide for the Treatment of Chronic Idiopathic Constipation and Irritable Bowel Syndrome With Constipation in Patients 65 Years or Older.
    Clinical therapeutics · 2020 · 13 citations · Open access · Likely link
  • Plecanatide for the treatment of chronic idiopathic constipation and irritable bowel syndrome with constipation: Post hoc analyses of placebo-controlled trials in adults with severe constipation.
    Neurogastroenterology and motility · 2023 · 9 citations · Open access · Likely link
  • The Effectiveness of Plecanatide for Treating Constipation and Bloating in Patients Aged 18 to 40 Years With Irritable Bowel Syndrome: Utilization of a New Composite Trisymptom Endpoint.
    Journal of gastroenterology and hepatology · 2025 · 3 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Number of Overall Responders - ITT Population
63; 106; 103
PRIMARY
Number of Abdominal Pain Responders for at Least 6 of 12 Treatment Weeks
112; 145; 156
PRIMARY
Number of Stool Frequency Responder for at Least 6 of the 12 Treatment Weeks
124; 169; 157
SECONDARY
Number of Sustained Efficacy Responders
61; 99; 96
SECONDARY
Change From Baseline in Stool Consistency
2.06; 2.02; 1.98; 1.06; 1.59; 1.86
SECONDARY
Change From Baseline in Straining
6.39; 6.47; 6.50; -1.87; -2.69; -2.88
SECONDARY
Change From Baseline in CSBM Frequency Rate
0.23; 0.22; 0.28; 0.86; 1.46; 1.41
SECONDARY
Number of Patients With a SBM Within 24 Hours After the First Dose
118; 168; 175
SECONDARY
Change From Baseline in Abdominal Pain
6.10; 5.94; 5.95; -1.79; -2.11; -2.46

Eligibility Criteria

Inclusion Criteria

•Adult patients between the ages of 18 and 85 years (inclusive) with a diagnosis of IBS based on ROME III diagnostic criteria and meeting criteria for diagnosis of the constipation predominant subtype - IBS-C

Exclusion Criteria

  • Refusal or inability to sign informed consent for the trial
  • Refusal or inability to complete daily Episodic (real-time) BM / RM calls, End of Day daily Calls, and/or complete electronic questionnaires
  • BMI > 35 or 3X ULN in the absence of a conjugation defect
  • Any laboratory value > 3X ULN unless discussed and approved by the study Medical Monitor
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02387359) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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