Suspended

A Randomized, Double-Blind, Trial Comparing the Efficacy of Linaclotide to Senna in Relieving Symptoms in Patients With Chronic Idiopathic Constipation (CIC)

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What is being tested

Senna

+ Linzess

Drug
Who is being recruted

Constipation+1

+ Signs and Symptoms

+ Signs and Symptoms, Digestive

From 18 to 70 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Interventional
Study Start: September 2014
See protocol details

Summary

Principal SponsorTriHealth Inc.
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: September 1, 2014

Actual date on which the first participant was enrolled.

In this prospective, randomized, double blind study, the aim is to determine the efficacy of Linaclotide in relation to Senna in relieving the symptoms of chronic idiopathic constipation (CIC). Our hypothesis is that Senna is not inferior to Linaclotide in the treatment of CIC. Seventy patients aged 18-70 diagnosed with CIC and seen by a gastroenterologist affiliated with TriHealth or a patient of the Faculty Medical Center clinic will be included in the study. After enrollment, subjects will be randomized to receive either Linaclotide or Senna over a 12-week period after a 1 week wash-out period. During th study period, subjects will complete a log to record the number of daily bowel movements. The subjects will also complete 3 validated surveys on a weekly basis: Subject's Global Assessment SGA of Relief, Subject's Global Assessment SGA of Bowel Habit, and SGA of Satisfaction with their Bowel Habit. A research nurse will meet with subjects at the beginning of the study and then at 3 monthly visits to administer the study medication and distribute the surveys. The main outcomes measures are change in # of bowel movements and SGA survey scores.

Official TitleA Randomized, Double-Blind, Trial Comparing the Efficacy of Linaclotide to Senna in Relieving Symptoms in Patients With Chronic Idiopathic Constipation (CIC)
Principal SponsorTriHealth Inc.
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

9 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.


Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 70 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

ConstipationSigns and SymptomsSigns and Symptoms, DigestivePathological Conditions, Signs and Symptoms

Criteria

Inclusion Criteria: Males and females 18 - 70 years of age. Diagnosed with CIC according to Rome III criteria. Coherent and mentally competent patient to understand and consent for the trial Unremarkable colonoscopy done in past 5 years Exclusion Criteria: Significant diarrhea (defined as loose or watery stool and or more than three bowel movements daily associated with urgency more than 25% of the days in preceding 3 months) Untreated hypothyroidism Organic or structural disease as the cause of patient's symptoms (stricture or tumor) Diseases that affect bowel transit time (Gastroparesis, short bowel syndrome) Evidence of cathartic colon History of alcohol, laxative abuse or illicit drug use Pregnant or lactating women Planning pregnancy or become pregnant during study period Concomitant use of any medication that could alter gastrointestinal motility (Calcium channel blockers, Narcotics, anticholinergics, calcium and aluminium containing antacids, phenothiazines, ferrous sulfate)

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Active Comparator
1 capsule (50 mg) Senna daily for 12 weeks

Group II

Active Comparator
1 capsule (145 mcg) once daily for 12 weeks

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

TriHealth

Cincinnati, United StatesOpen TriHealth in Google Maps
SuspendedOne Study Center