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Trial · NCT02651155

Lubiprostone for the Treatment of Chronic Idiopathic Constipation

NCT02651155, Phase 3, Completed, Takeda; results first posted 2018-08-13

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Lubiprostone for the Treatment of Chronic Idiopathic Constipation. Trials, record NCT02651155. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02651155

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Lubiprostone for the Treatment of Chronic Idiopathic Constipation
NCT number
NCT02651155
Status
Completed
Phases
Phase 3
Enrollment
204 participants, actual
Lead sponsor
Takeda
Conditions
Constipation
Interventions
Lubiprostone, Placebo
First posted
2016-01-08
Last updated
2018-08-13
Results first posted
2018-08-13

Source ClinicalTrials.gov

Registered outcomes6

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimarySpontaneous Bowel Movement (SBM) Frequency at Week 1Week 1
A SBM is defined as any bowel movement (BM) that does not occur within 24 hours after rescue medication use (laxative, suppository, or enema). SBM frequency data was collected in a diary. Participants were given a diary to complete at home where they recorded the date and time of each BM.
SecondarySBM Frequency at Weeks 2, 3 and 4Weeks 2, 3 and 4
A SBM is defined as any BM that does not occur within 24 hours after rescue medication use. SBM frequency data was collected in a diary. Participants were given a diary to complete at home where they recorded the date and time of each BM.
SecondaryPercentage of Participants Who Had a SBM Within 24 Hours After the First Dose of Study MedicationUp to 24 hours after the first dose of study medication
A SBM is defined as any BM that does not occur within 24 hours after rescue medication use. Percentage of participants who had a SBM within 24 hours after the first dose was assessed and derived from the data on SBMs collected in the participant diary.
SecondaryMean Degree of Straining ScoreWeeks 1, 2, 3 and 4
For each participant, the mean degree of straining was averaged for all SBMs in a given week. The degree of straining for each SBM was collected in the participant diary. The degree of straining is scored on a 5-point scale where: 0=No straining, 1=Mild straining, 2=Moderate straining, 3=Strong straining or 4=Very strong straining with higher scores indicating more severe straining.
SecondaryMean Degree Stool Consistency ScoreWeeks 1, 2, 3 and 4
For each participant, the mean stool consistency score was averaged for all SBMs in a given week. The mean degree of stool consistency for each SBM was collected in the participant diary based on the Bristol Stool Chart. The Bristol Stool Chart is a visual medical aid designed to classify the form of human feces into seven categories where: 1=Hard and round (difficult-to-pass), 2=Sausage-shaped but hard stool, 3=Sausage-shaped stool with cracks on the surface, 4=Sausage-shaped, soft stool with smooth surface, or coiled stool, 5=Soft, half-solid (and easy-to-pass) stool with clear crease, 6=Unshaped, loose stool with small, irregular-shaped pieces, or mushy stool or 7=Watery stool without solid pieces (entirely liquid).
SecondaryWeekly Abdominal Symptoms ScoreWeeks 1, 2, 3 and 4
The abdominal symptoms (bloating and discomfort upon waking in the morning) were scored weekly on a 5-point scale, where: 0=None, 1=Mild, 2=Moderate, 3=Severe or 4=Very severe, with a higher score indicating more severe symptoms. Assessment of weekly abdominal symptoms were recorded by the participant in the diary.

Outcomes6

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYSpontaneous Bowel Movement (SBM) Frequency at Week 1Week 1FAS included all participants who were randomized to receive study treatment whether or not they received treatment. Missing values were imputed by last observation carried forward (LOCF) method.SBMs/weekMEAN
SECONDARYSBM Frequency at Weeks 2, 3 and 4Weeks 2, 3 and 4FAS included all participants who were randomized to receive study treatment whether or not they received treatment. Missing values were imputed by LOCF method.SBMs/weekMEAN
SECONDARYPercentage of Participants Who Had a SBM Within 24 Hours After the First Dose of Study MedicationUp to 24 hours after the first dose of study medicationFAS included all participants who were randomized to receive study treatment whether or not they received treatment.percentage of participantsNUMBER
SECONDARYMean Degree of Straining ScoreWeeks 1, 2, 3 and 4FAS included all participants who were randomized to receive study treatment whether or not they received treatment. Missing values were imputed by LOCF method.scores on a scaleMEAN
SECONDARYMean Degree Stool Consistency ScoreWeeks 1, 2, 3 and 4FAS included all participants who were randomized to receive study treatment whether or not they received treatment. Missing values were imputed by LOCF method.scores on a scaleMEAN
SECONDARYWeekly Abdominal Symptoms ScoreWeeks 1, 2, 3 and 4FAS included all participants who were randomized to receive study treatment whether or not they received treatment. Missing values were imputed by LOCF method.scores on a sclaeMEAN

Results by group42

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Spontaneous Bowel Movement (SBM) Frequency at Week 1Placebo3.6Standard Deviation 2.51SBMs/week
Spontaneous Bowel Movement (SBM) Frequency at Week 1Lubiprostone 24 μg5.0Standard Deviation 2.94SBMs/week
SBM Frequency at Weeks 2, 3 and 4PlaceboWeek 23.9Standard Deviation 2.52SBMs/week
SBM Frequency at Weeks 2, 3 and 4Lubiprostone 24 μgWeek 25.0Standard Deviation 2.82SBMs/week
SBM Frequency at Weeks 2, 3 and 4PlaceboWeek 33.8Standard Deviation 2.87SBMs/week
SBM Frequency at Weeks 2, 3 and 4Lubiprostone 24 μgWeek 35.1Standard Deviation 2.72SBMs/week
SBM Frequency at Weeks 2, 3 and 4PlaceboWeek 43.7Standard Deviation 2.72SBMs/week
SBM Frequency at Weeks 2, 3 and 4Lubiprostone 24 μgWeek 45.2Standard Deviation 2.61SBMs/week
Percentage of Participants Who Had a SBM Within 24 Hours After the First Dose of Study MedicationPlacebo35.4percentage of participants
Percentage of Participants Who Had a SBM Within 24 Hours After the First Dose of Study MedicationLubiprostone 24 μg46.7percentage of participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo99
Overall StudySTARTEDLubiprostone 24 μg105
Overall StudyCOMPLETEDPlacebo93
Overall StudyCOMPLETEDLubiprostone 24 μg103
Overall StudyNOT COMPLETEDPlacebo6
Overall StudyNOT COMPLETEDLubiprostone 24 μg2

Adverse events6

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherNauseaGastrointestinal disordersPlacebo399
otherNauseaGastrointestinal disordersLubiprostone 24 μg11105
otherDiarrhoeaGastrointestinal disordersPlacebo399
otherDiarrhoeaGastrointestinal disordersLubiprostone 24 μg8105
seriousHaemorrhagic strokeNervous system disordersPlacebo199
seriousHaemorrhagic strokeNervous system disordersLubiprostone 24 μg0105

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo
Total, all-cause mortalityLubiprostone 24 μg
Total, other adverse eventsPlacebo699
Total, other adverse eventsLubiprostone 24 μg16105
Total, serious adverse eventsPlacebo199
Total, serious adverse eventsLubiprostone 24 μg0105

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
Lubiprostone 24 μg vs Placebo: serious adverse events

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT02651155

GET https://conductscience.org/api/trials/v1/NCT02651155/results?page=2