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Chronic Idiopathic ConstipationPhase 2/3NCT01469819

Lubiprostone Effect on Gastrointestinal Tract Transit Times Measured by Smartpill in Patients With Chronic Constipation

A Phase 2/3 study testing Lubiprostone in people with Chronic Idiopathic Constipation, run by Texas Tech University Health Sciences Center, El Paso at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine if lubiprostone may change the rate of movement of food and activities in the stomach and intestines in subjects whose gastrointestinal (GI) tract is slower due to constipation. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Chronic Idiopathic Constipation
What is being tested?
Lubiprostone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
37 participants
Where
1 siteUnited States
Study dates
Jun 2012to Feb 2015
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18-65 years old
  • At least a 6 months history of constipation. Constipation defined as follows:
  • Less than three complete spontaneous bowel movements per week and one or more of the following:
  • At least 25% of stools are very hard and/or hard stools
  • Sensation of incomplete evacuation following at least 25% of bowel movements.
  • Straining on at least 25% of defecations. The above criteria are only applicable to spontaneous bowel movements. Patients who have no spontaneous bowel movements (bowel movements are preceded by laxative intake) are considered constipated and are eligible for this study.
  • For patients ≥ 50 years of age, normal colonic anatomy as documented by colonoscopy, double-contrast barium enema, or flexible sigmoidoscopy performed within the previous 5 years.

Who cannot join

  • Pregnancy or lactation.
  • Subjects unwilling to practice adequate contraception throughout the period of screening through 14 days after the study termination.
  • Use of laxatives 3 days immediately prior to randomization (except fiber or bulking agents).
  • Use of any of the following drugs within 3 days prior to randomization:
  • Prokinetic agents (tegaserod, domperidone, cisapride, metoclopramide, erythromycin).
  • Medication containing opiates.
Show all 16Show fewer
  • Anti-spasmodic (e.g., atropine, hyoscyamine, scopolamine, glycopyrrolate).
  • Use of illegal drugs
  • Regular consumption of 2 drinks of alcohol per day.
  • Chronic nonsteroidal antiinflammatory drugs (NSAIDs) use
  • Chronic use of H2 receptor antagonist or proton pump inhibitors (PPIs) within 14 days prior to screening.
  • History of gastric or duodenal ulcer, inflammatory bowel disease(IBD), or chronic non-ulcer dyspepsia.
  • Diabetes Mellitus (DM) type 1, Parkinson's disease.
  • Existence of any medical condition that requires chronic therapy.
  • Positive H. pylori serology
  • Chronic active diverticulosis

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Texas Tech University Health Sciences Center

    El Paso, Texas, 79905

Other trials in United States

About this study

Official title: The Effect of Lubiprostone on Transit Times Within the Alimentary Tract, Measured by Novel Smartpill Methodology in Patients With Chronic Constipation

The purpose of this study is to determine if lubiprostone may change the rate of movement of food and activities in the stomach and intestines in subjects whose gastrointestinal (GI) tract is slower due to constipation.

To be able to measure the time difference in the duration of transit of the FDA approved SmartPill capsule in all segments of gastrointestinal (GI) tract before and after exposure to lubiprostone.

The investigators anticipate to capture the possibility to reduce/eliminate the small intestinal bacterial overgrowth in chronically constipated patients after administration of study drug- lubiprostone.

Read the detailed description

Lubiprostone is an effective treatment for chronic constipation. The mechanism of action of lubiprostone is through increasing fluid and mucus secretion and improving lubrication of the intestinal lumen. The effects of lubiprostone on gastrointestinal (GI) transit and small bacterial overgrowth (SIBO) have not been sufficiently explored.

The current study was designed to investigate whether: (a) lubiprostone alters GI transit and (b) affects SIBO in constipated patients.

Twenty nine female patients (mean age of 39 year: range 19-64) with chronic constipation received 2 weeks of lubiprostone (24 mcg b.i.d., P.O.). Stool consistency based on Bristol stool scale and the frequency of bowel movements were recorded. Gastric emptying time (GET), small bowel transit time (SBTT), colon transit time (CTT), combined small \& large bowel transit time (SLBTT) and whole gut transit time (WGT) were measured using wireless motility capsule. Small bacterial overgrowth (SIBO) status was assessed by the lactulose breath test.

Being tested
Lubiprostone
Keywords
chronic constipation, constipation, idiopathic constipation, SmartPill, Wireless Motility Capsule, lubiprostone (Amitiza), small intestinal bacterial overgrowth
Medical subject headings
Constipation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LubiprostoneDrug

    Also called Amitiza

    24 mcg twice a day (BID) for 2 weeks.

Study groups in NCT01469819
Study groupRoleWhat they receive
LubiprostoneExperimentalLubiprostone 24 mcg by mouth twice a day (BID) for 2 weeks.
Receives: Drug: Lubiprostone

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Time Reduction (Hours and Minutes) of Gastric Emptying (GE), Small Bowel (SB), Large Bowel (LB) and Whole Gut (WG) Transits Measured by SmartPill in Chronically Constipated Patients Before and After 2 Weeks of Therapy With Lubiprostone 24mcg Twice a Day.

    The change in transit time (TT), in hours and minutes, of gastric emptying (GE), small bowel (SB), large bowel (LB) and whole gut (WG) measured by SmartPill in 29 patients with chronic constipation after taking lubiprostone 24 micrograms twice a day (BID) for 2 weeks.

    Measured: Measured at baseline and 2 weeks after baseline.

Secondary outcomes (4)
  1. Changes in Number of Bowel Movements in Chronically Constipated Patients After 2 Weeks of Therapy With Lubiprostone 24mcg Twice a Day (BID).

    Measured: Measured at baseline and 2 weeks after baseline

  2. Changes in Time of GE, SB, LB and WG Transits Measured by SmartPill After 2 Weeks of Lubiprostone 24mcg BID in Chronically Constipated Patients.

    Changes in Time of GE, SB, LB and WG transits measured by SmartPill after 2 weeks of lubiprostone 24mcg BID in chronically constipated patients who increased stool frequency to ≥ 2 times increase per week vs. patients who increased stool frequency < 2 times increase per week.

    Measured: Measured at baseline and 2 weeks after baseline.

  3. Changes in Number of Bowel Movements Per Week Changes GE, SB, LB and WG Transit Times Measured by SmartPill in Chronically Constipated Patients Treated for 2 Weeks With Lubiprostone 24mcg Twice a Day.

    Measured: Measured at baseline and 2 weeks after baseline.

  4. Elimination of Small Intestine Bacterial Overgrowth (SIBO) in Chronically Constipated Patients Treated With Lubiprostone 24mcg Twice a Day for 2 Weeks.

    Measured: Measured at baseline and 2 weeks after baseline.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Nov 2011 (estimated)
  2. Study startJun 2012
  3. Primary completionFeb 2015
  4. Study completionFeb 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
37 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01469819
Sponsor's protocol ID
LUB-119
Status last verified
May 2017
First submitted
28 Oct 2011
Last updated
9 Jun 2017
Data monitoring committee
No
Individual data sharing
No

Publications

  • Sarosiek I, Bashashati M, Alvarez A, Hall M, Shankar N, Gomez Y, McCallum RW, Sarosiek J. Lubiprostone Accelerates Intestinal Transit and Alleviates Small Intestinal Bacterial Overgrowth in Patients With Chronic Constipation. Am J Med Sci. 2016 Sep;352(3):231-8. doi: 10.1016/j.amjms.2016.05.012. Epub 2016 May 24.

    PubMed 27650225

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Lubiprostone in people with Chronic Idiopathic Constipation, run by Texas Tech University Health Sciences Center, El Paso at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Aug 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time Reduction (Hours and Minutes) of Gastric Emptying (GE), Small Bowel (SB), Large Bowel (LB) and Whole Gut (WG) Transits Measured by SmartPill in Chronically Constipated Patients Before and After 2 Weeks of Therapy With Lubiprostone 24mcg Twice a Day. (time frame: Measured at baseline and 2 weeks after baseline.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01469819, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jun 2017.

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