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Chronic Idiopathic ConstipationPhase 3NCT01993875

Pharmacodynamic, Pharmacokinetic, and Tolerability Study of a Liquid Form of Lubiprostone in Adult Subjects With Chronic Idiopathic Constipation

A Phase 3 study testing Lubiprostone in people with Chronic Idiopathic Constipation, run by Mallinckrodt at 11 sites 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

To evaluate the pharmacodynamics and tolerability of a liquid formulation of lubiprostone, as compared to matching placebo, when administered orally to subjects with chronic idiopathic constipation. Read more about this study

Who is it for?
Ages 18 years and older
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?
Yes, some participants may receive a placebo
How many people
164 participants
Where
11 sitesUnited States
Study dates
Oct 2013to Jan 2014
Phase
Phase 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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Medically-confirmed diagnosis of chronic idiopathic constipation
  • Willing to discontinue use of prescribed or over-the-counter (OTC) medication that affects gastrointestinal motility during the study
  • Stable dose of selective serotonin re-uptake inhibitors (SSRIs), serotonin-specific reuptake inhibitor (SNRIs), or monoamine oxidase inhibitors (MAO) inhibitors

Who cannot join

  • Any gastrointestinal (GI) condition, other than constipation, affecting GI motility or defecation.
  • Medical/surgical condition that might interfere with the absorption, distribution, metabolism, or excretion of the study medication.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Study site

    Anaheim, California, 92801

  • Study site

    Anniston, Alabama, 36207

  • Study site

    DeLand, Florida, 32720

  • Study site

    Hollywood, Florida, 33024

  • Study site

    Marlton, New Jersey, 08053

  • Study site

    Orlando, Florida, 32809

  • Study site

    Overland Park, Kansas, 66212

  • Study site

    Raleigh, North Carolina, 27612

  • Study site

    Salt Lake City, Utah, 84106

  • Study site

    South Miami, Florida, 33143

  • Study site

    West Bend, Wisconsin, 53095

Other trials in United States

About this study

Official title: A Randomized, Placebo-controlled, Double-blinded, Multicenter Study of the Pharmacodynamics, Pharmacokinetics, and Tolerability of a Liquid Form of Lubiprostone in Adult Subjects With Chronic Idiopathic Constipation

To evaluate the pharmacodynamics and tolerability of a liquid formulation of lubiprostone, as compared to matching placebo, when administered orally to subjects with chronic idiopathic constipation. Additionally, liquid formulation pharmacokinetics, including a comparison of fed and fasted pharmacokinetics, of the liquid formulation will be performed in a subset of subjects.

Being tested
Lubiprostone, Placebo

What participants receive

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

  • LubiprostoneDrug

    Liquid formulation, 12 mcg x 2 pumps administered orally twice daily (BID)

  • PlaceboDrug

    Matching liquid placebo, 0 mcg x 2 pumps administered orally twice daily (BID)

Study groups in NCT01993875
Study groupRoleWhat they receive
LubiprostoneExperimentalNot described
Receives: Drug: Lubiprostone
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. Number of Spontaneous Bowel Movements (SBMs) Within 1 Week

    SBM is defined as any bowel movement (BM) that did not occur within the 24-hour period following use of a rescue medication.

    Measured: within 1 week

Secondary outcomes (5)
  1. Consistency of SBMs at Week 1

    Stool consistency was rated according to the 7-point Bristol Stool Form Scale: Type 1 = separate hard lumps, like nuts (hard to pass), Type 2 = sausage-shaped but lumpy, Type 3 = like a sausage but with cracks on the surface, Type 4 = like a sausage or snake, smooth and soft, Type 5 = soft blobs with clear-cut edges (passed easily), Type 6 = fluffy pieces with ragged edges, a mushy stool, Type 7 = watery, no solid pieces; entirely liquid.

    Measured: at Week 1

  2. Overall Stool Consistency at Week 1

    Overall stool consistency was rated according to the 7-point Bristol Stool Form Scale: Type 1 = separate hard lumps, like nuts (hard to pass), Type 2 = sausage-shaped but lumpy, Type 3 = like a sausage but with cracks on the surface, Type 4 = like a sausage or snake, smooth and soft, Type 5 = soft blobs with clear-cut edges (passed easily), Type 6 = fluffy pieces with ragged edges, a mushy stool, Type 7 = watery, no solid pieces; entirely liquid.

    Measured: at Week 1

  3. Mean Change From Baseline in Stool Consistency at Week 1

    Stool consistency was rated according to the 7-point Bristol Stool Form Scale: Type 1 = separate hard lumps, like nuts (hard to pass), Type 2 = sausage-shaped but lumpy, Type 3 = like a sausage but with cracks on the surface, Type 4 = like a sausage or snake, smooth and soft, Type 5 = soft blobs with clear-cut edges (passed easily), Type 6 = fluffy pieces with ragged edges, a mushy stool, Type 7 = watery, no solid pieces; entirely liquid. The change from baseline was calculated as post-treatment value (mean) minus the baseline value (mean).

    Measured: Baseline and Week 1

  4. Overall Straining at Week 1

    Bowel straining was rated on a scale of 0 to 4 (0 = absent, 1 = mild, 2 = moderate, 3 = severe, 4 = very severe).

    Measured: Week 1

  5. Mean Change From Baseline in Straining at Week 1

    Bowel straining was rated as 0 = absent, 1 = mild, 2 = moderate, 3 = severe, 4 = very severe. The change from baseline was calculated as post-treatment value minus the baseline value.

    Measured: Week 1

Timeline

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

  1. First posted25 Nov 2013 (estimated)
  2. Study startOct 2013
  3. Primary completionJan 2014
  4. Study completionJan 2014

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
164 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01993875
Sponsor's protocol ID
SCMP-0211-301
Status last verified
Jul 2015
First submitted
19 Nov 2013
Last updated
13 Dec 2019
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Lubiprostone in people with Chronic Idiopathic Constipation, run by Mallinckrodt at 11 sites 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 3 inclusion and 2 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 13 Dec 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

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 13 Dec 2019). 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?

Number of Spontaneous Bowel Movements (SBMs) Within 1 Week (time frame: within 1 week). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 Dec 2019; AzTrials last refreshed its copy on 7 Nov 2026.

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