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CompletedNCT01429987Updated May 28, 2019Results posted

The Plecanatide Chronic Idiopathic Constipation (CIC) Study

A Phase 2/3 interventional study of plecanatide and Placebo in Chronic Idiopathic Constipation, sponsored by Bausch Health Americas, Inc.. Completed at 121 sites in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2019-05-28.

Sponsored by Bausch Health Americas, Inc. · Phase 2/3, Interventional, and Treatment

Phase
Phase 2/3
Study type
Interventional
Enrollment
951
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a randomized, double-blind, placebo controlled, 12 week repeat oral dose, dose ranging study to determine the efficacy and safety of 3 doses of plecanatide compared to placebo in patients with Chronic Idiopathic Constipation (CIC).

Read the detailed description

This is a Phase IIb/III, randomized, double-blind, placebo-controlled, 12-Week, Repeat, Oral Dose Ranging, study to determine the safety and efficacy of plecanatide in patients with chronic idiopathic constipation (CIC). Subjects diagnosed with CIC via modified Rome III criteria will be screened against the inclusion and exclusion criteria for the study and enter a 2 Week pre treatment screening. During this phase patients will be required to call in their bowel movements (BM diary) as they occur, and call at least once daily to complete a patient diary of questions on their symptoms (Symptom Diary) associated with CC, as they will throughout the trial. Patients who complete at least 5 days of dosing per week, 6 of each 7 day period of BM diary calls, and continue to have less than 3 complete spontaneous movements per week (as well as meeting other inclusion and exclusion criteria) will be enrolled and randomized to one of three plecanatide doses 0.3 mg, 1.0 mg, and 3.0 mg or placebo. 880 patients will be randomized with the intent of having 200 patients per treatment group (each group the same size) included in efficacy analyses. All subjects receiving at least one dose of plecanatide or matching placebo will be included in the safety analyses.

02

Conditions studied

  • Chronic Idiopathic Constipation

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Keywords

  • Chronic Idiopathic Constipation
  • Constipation
  • Sign and Symptoms: Digestive
03

In context

Constipation

1,018 studies on the registry are indexed under Constipation; 139 are open to participants now.

This study's enrollment of 951 is above the median of 80 across 850 interventional studies indexed under Constipation.

Browse Constipation studies →

Lead sponsor

Bausch Health Americas, Inc. is the lead sponsor of 209 studies on the registry; 9 are open to participants now.

Of its 23 completed or terminated interventional studies of FDA-regulated products, 16 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male or female aged 18-75, inclusive
  • Body Mass Index = 18-35 kg/m2, inclusive
  • Meets modified Rome III criteria for functional chronic idiopathic constipation for at least 3 months with symptom onset for at least 6 months. Note: For this trial, patients with manual maneuvers required for >25% of defecations will not be eligible for participation.
  • Less than 3 CSBMs per week at baseline and during pretreatment
  • Completed a colonoscopy in accordance with medical guidelines as appropriate, with no clinically significant findings
  • Patient is willing to discontinue use of supplemental fiber, laxatives, prescription and nonprescription medications, herbal or dietary supplements intended to treat constipation during the screening, pre-treatment, treatment and 2-week post-treatment periods
  • Willing to maintain a stable diet during the study.
  • Patients with hemorrhoids and/or diverticulosis (NOT diverticulitis) CAN be entered into the study.

Exclusion criteria

Exclusion Criteria:

  • Loose stool (mushy) or watery (Bristol score- 6 or 7) stool in the absence of any laxative or prohibited medicine for > 25% of BMs during the 3 months prior to screening visit OR during the 14 day treatment period
  • Patient meets the Rome III criteria for Irritable Bowel Syndrome (IBS-C)
  • Active peptic ulcer disease not adequately treated or not stable
  • History of cathartic colon, laxative, enema abuse, or ischemic colitis.
  • Fecal impaction within 3 months of screening
  • Patient has had /has any: diseases or conditions associated with constipation (GI or CNS), structural abnormality of the GI tract or gastric bypass surgery, pelvic floor dysfunction, pseudo-obstruction, active infectious gastritis, diverticulitis, anal fissures or any disease or condition that can affect GI motility or defecation or can be associated with abdominal pain
  • Unexplained and clinically significant "alarm symptoms" including lower GI bleeding, iron-deficiency anemia, weight loss or systemic signs of infection or colitis.
  • Major surgery within 60 days of screening.
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
951 participants (actual)

Study arms

  • Experimental
    plecanatide 0.3 mg

    Subjects receive plecanatide 0.3 mg for 12 consecutive weeks

    Drug: plecanatide

  • Experimental
    plecanatide 1.0 mg

    Subjects receive plecanatide 1.0 mg for 12 consecutive weeks

    Drug: plecanatide

  • Experimental
    plecanatide 3.0 mg

    Subjects receive plecanatide 3.0 mg for 12 consecutive weeks

    Drug: plecanatide

  • Placebo comparator
    Placebo

    Subjects receive placebo for 12 consecutive weeks

    Other: Placebo

Interventions

  • Drugplecanatide

    Subjects receive experimental study drug for 12 weeks.

    Also known as: Trulance

  • OtherPlacebo

    Subjects receive experimental study drug for 12 weeks.

06

What researchers measure

Primary outcomes

  1. Overall Responder 9/12 Weeks

    A Complete Spontaneous Bowel Movement (CSBM) is a Bowel Movement (BM) that occurs in the absence of laxative use within 24 hours of the BM and the patient reports a feeling of complete evacuation. A weekly responder will have 3 or more CSBMs and an increase of at least one CSBM from baseline in the same week. An overall responder is a patient who is a weekly responder for at least 9 of the 12 treatment weeks, including at least 3 of the last 4 weeks.

    Time frame: 12-Week Treatment Period

Secondary outcomes

  1. Change From Baseline in 12-week CSBM Weekly Frequency Rate

    The number of Complete Spontaneous Bowel Movements (CSBMs) per week

    Time frame: 12-Week Treatment Period

  2. Change From Baseline in 12-week SBM Weekly Frequency Rate

    The number of Spontaneous Bowl Movements experienced per week.

    Time frame: 12-Week Treatment Period

  3. Change From Baseline in Stool Consistency (BSFS) to Over Treatment Period

    The stool consistency of each bowel movement (BM) was assessed by patients using the 7-point Bristol Stool Form Scale \[BSFS\] from 1 to 7. 1. = separate hard lumps like nuts (difficult to pass) 2. = sausage shaped but lumpy 3. = like a sausage but with cracks on its surface 4. = like a sausage or snake, smooth and soft 5. = soft blobs with clear-cut edges (passed easily) 6. = fluffy pieces with ragged edges, a mushy stool 7. = watery, no solid pieces (entirely liquid)

    Time frame: 12-Week Treatment Period

  4. Change From Baseline in 12-week Patient Reported Symptoms Associated With Constipation - Straining Score

    The severity of straining (Straining Score) was reported by the patients using a 11-point scale (0-10) where 0 = none and 10 = the worst

    Time frame: 12-Week Treatment Period

07

Results

Posted Nov 29, 2017

Participant flow

Participant flow — Overall Study
MilestonePlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Started238238238237
Completed189176202171
Not completed49623666

Outcome measures

PrimaryOverall Responder 9/12 Weeks

A Complete Spontaneous Bowel Movement (CSBM) is a Bowel Movement (BM) that occurs in the absence of laxative use within 24 hours of the BM and the patient reports a feeling of complete evacuation. A weekly responder will have 3 or more CSBMs and an increase of at least one CSBM from baseline in the same week. An overall responder is a patient who is a weekly responder for at least 9 of the 12 treatment weeks, including at least 3 of the last 4 weeks.

Time frame:
12-Week Treatment Period
Reported as:
Number · % of Overall Responder 9/12 weeks
Overall Responder 9/12 Weeks
% of Overall Responder 9/12 weeksPlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Overall Responder 9/12 Weeks18.616.819.010.7
SecondaryChange From Baseline in 12-week CSBM Weekly Frequency Rate

The number of Complete Spontaneous Bowel Movements (CSBMs) per week

Time frame:
12-Week Treatment Period
Reported as:
Least squares mean · CSBMs per week
Change From Baseline in 12-week CSBM Weekly Frequency Rate
CSBMs per weekPlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Change From Baseline in 12-week CSBM Weekly Frequency Rate1.60 ± 0.1591.81 ± 0.1572.18 ± 0.1591.09 ± 0.162
SecondaryChange From Baseline in 12-week SBM Weekly Frequency Rate

The number of Spontaneous Bowl Movements experienced per week.

Time frame:
12-Week Treatment Period
Reported as:
Least squares mean · SBMs per week
Change From Baseline in 12-week SBM Weekly Frequency Rate
SBMs per weekPlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Change From Baseline in 12-week SBM Weekly Frequency Rate2.20 ± 0.1902.38 ± 0.1883.00 ± 0.1911.35 ± 0.194
SecondaryChange From Baseline in Stool Consistency (BSFS) to Over Treatment Period

The stool consistency of each bowel movement (BM) was assessed by patients using the 7-point Bristol Stool Form Scale \[BSFS\] from 1 to 7. 1. = separate hard lumps like nuts (difficult to pass) 2. = sausage shaped but lumpy 3. = like a sausage but with cracks on its surface 4. = like a sausage or snake, smooth and soft 5. = soft blobs with clear-cut edges (passed easily) 6. = fluffy pieces with ragged edges, a mushy stool 7. = watery, no solid pieces (entirely liquid)

Time frame:
12-Week Treatment Period
Reported as:
Least squares mean · scores on a scale
Change From Baseline in Stool Consistency (BSFS) to Over Treatment Period
scores on a scalePlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Change From Baseline in Stool Consistency (BSFS) to Over Treatment Period1.28 ± 0.0901.70 ± 0.0901.97 ± 0.0890.87 ± 0.091
SecondaryChange From Baseline in 12-week Patient Reported Symptoms Associated With Constipation - Straining Score

The severity of straining (Straining Score) was reported by the patients using a 11-point scale (0-10) where 0 = none and 10 = the worst

Time frame:
12-Week Treatment Period
Reported as:
Least squares mean · scores on a scale
Change From Baseline in 12-week Patient Reported Symptoms Associated With Constipation - Straining Score
scores on a scalePlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Change From Baseline in 12-week Patient Reported Symptoms Associated With Constipation - Straining Score-1.25 ± 0.142-1.46 ± 0.142-1.73 ± 0.143-1.04 ± 0.144

Adverse events

Non-serious events are listed at a 2% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Plecanatide 0.3 mg—1/237 (0.4%)55/237 (23.2%)
Plecanatide 1.0 mg—1/238 (0.4%)79/238 (33.2%)
Plecanatide 3.0 mg—2/237 (0.8%)92/237 (38.8%)
Placebo—5/236 (2.1%)45/236 (19.1%)
Most frequent serious events
Most frequent serious events
EventPlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
Non-cardiac chest painGeneral disorders1/2370/2380/2371/236
GastroenteritisInfections and infestations0/2370/2380/2371/236
Abortion spontaneousPregnancy, puerperium and perinatal conditions0/2370/2380/2371/236
AsthmaRespiratory, thoracic and mediastinal disorders0/2370/2380/2371/236
HypertensionVascular disorders0/2370/2380/2371/236
AstheniaGeneral disorders0/2370/2381/2370/236
Cholecystitis AcuteHepatobiliary disorders0/2370/2381/2370/236
HypoaesthesiaNervous system disorders0/2370/2381/2370/236
EndometriosisReproductive system and breast disorders0/2371/2380/2370/236
Most frequent other events
Most frequent other events
EventPlecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlacebo
DiarrhoeaGastrointestinal disorders13/23720/23823/2373/236
FlatulenceGastrointestinal disorders5/2373/23814/2375/236
Abdominal PainGastrointestinal disorders6/2379/23812/23711/236
NauseaGastrointestinal disorders5/23712/2388/2375/236
HeadacheNervous system disorders10/23711/2389/2375/236
Abdominal DistensionGastrointestinal disorders5/23710/2389/2375/236
Upper Respiratory tract infectionInfections and infestations6/2375/2389/2375/236
Urinary Tract InfectionInfections and infestations5/2379/2388/2376/236

Baseline characteristics

The mITT population included all randomized patients who received ≥ 1 dose of study drug and ≥ 1 post-baseline BM assessment. 951 patients were randomized; 3 were not treated and 2 received study drug but did not complete a post-dose assessment, yielding 946 patients in the mITT population.

Age, Continuous
Age, Continuous(years)Plecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlaceboTotal
Mean47.8 (20 to 75)47.1 (18 to 75)47.1 (18 to 75)46.3 (19 to 75)47.1 (18 to 75)
Sex: Female, Male
Sex: Female, Male(Participants)Plecanatide 0.3 mgPlecanatide 1.0 mgPlecanatide 3.0 mgPlaceboTotal
Female203202205207817
Male34363227129
08

Study locations

121 sites
  • Coastal Clinical Research, Inc.
    Mobile, Alabama 36608, United States
  • East Valley Gastroenterology and Hepatology Associates, PC
    Chandler, Arizona 85224, United States
  • Genova Clinical Research
    Tucson, Arizona 85704, United States
  • Desert Sun Clinical Research, LLC
    Tucson, Arizona 85710, United States
  • Adobe Clinical Research, LLC
    Tucson, Arizona 85712, United States
  • Preferred Research Partners, Inc
    Little Rock, Arkansas 72211, United States
  • ACRI-Phase 1,LLC
    Anaheim, California 92801, United States
  • Translational Research Group, INC., d/b/a Providence Clinical Research
    Burbank, California 91505, United States
  • GW Research, Inc
    Chula Vista, California 91910, United States
  • Community Clinical Trials
    Orange, California 92868, United States
  • Dormir Clinical Trials, Inc
    Redlands, California 92373, United States
  • Inland Gastroenterology Medical Associates, Inc.
    Redlands, California 92374, United States
  • Superior Research LLC
    Sacramento, California 95825, United States
  • Medical Center for Clinical Research
    San Diego, California 92108, United States
  • Medical Associates Research Group, Inc.
    San Diego, California 92123, United States
  • Progressive Clinical Research
    Vista, California 92083, United States
  • Horizons Clinical Research Center, LLC
    Denver, Colorado 80220, United States
  • Consultants for Clinical Research of S. Florida
    Boynton Beach, Florida 33426, United States
  • Medical Research Unlimited, LLC
    Hialeah, Florida 33012, United States
  • Nature Coast Clinical Research
    Inverness, Florida 34452, United States
  • Health Awareness, Inc.
    Jupiter, Florida 33458, United States
  • Jupiter Research, Inc.
    Jupiter, Florida 33458, United States
  • Miami Gastroenterology Consultants, PA
    Miami, Florida 33156, United States
  • Advance Medical Research Service Corp
    Miami, Florida 33165, United States
  • Advance Medical Research Service
    Miami, Florida 33165, United States
  • Florida International Research Center
    Miami, Florida 33166, United States
  • Columbus Clinical Services, LLC
    Miami, Florida 33174, United States
  • South Medical Research Group, Inc
    Miami, Florida 33186, United States
  • Compass Research, LLC
    Orlando, Florida 32806, United States
  • Gold Coast Research, LLC
    Plantation, Florida 33317, United States
  • DMI Research
    Seminole, Florida 33777, United States
  • Meridien Research
    Tampa, Florida 33606, United States
  • Palm Beach Research Center
    West Palm Beach, Florida 33409, United States
  • Gastro Specialists Research Center, LLC
    Decatur, Georgia 30032, United States
  • Mount Vernon Clinical Research, LLC
    Sandy Springs, Georgia 30328, United States
  • CTL Research
    Eagle, Idaho 83616, United States
  • Advanced Clinical Research
    Meridian, Idaho 83642, United States
  • Medex Healthcare Research, Inc.
    Chicago, Illinois 60602, United States
  • Southwest Gastroenterology Assoc
    Oak Lawn, Illinois 60453, United States
  • Rockford Gastroenterology Associates, Ltd.
    Rockford, Illinois 61107, United States
  • Investigators Research Group, LLC
    Brownsburg, Indiana 46112, United States
  • MediSphere Medical Research Center, LLC
    Evansville, Indiana 47714, United States
  • Memorial Health System, Inc., d/b/a LaPorte Medical Group
    LaPorte, Indiana 46350, United States
  • Memorial Health System, Inc., d/b/a Ireland Road Medical Group
    South Bend, Indiana 46614, United States
  • Iowa Digestive Disease Center
    Clive, Iowa 50325, United States
  • Heartland Research Associates, LLC
    Augusta, Kansas 67010, United States
  • Hutchinson Clinic, P.A
    Hutchinson, Kansas 67502, United States
  • Heartland Research Associates, LLC
    Newton, Kansas 67114, United States
  • Heartland Research Associates, LLC
    Wichita, Kansas 67205, United States
  • Heartland Research Associates, LLC
    Wichita, Kansas 67207, United States
  • Research Integrity
    Owensboro, Kentucky 42303, United States
  • Horizon Research Group, LLC
    Baton Rouge, Louisiana 70808, United States
  • Gastroenterology Associates, LLC
    Baton Rouge, Louisiana 70809, United States
  • Women Under Study, LLC
    New Orleans, Louisiana 70115, United States
  • Willis-Knighton Physician Network / Pinnacle Gastroenterology
    Shreveport, Louisiana 71103, United States
  • Mid-Atlantic Medical Research Centers
    Hollywood, Maryland 20636, United States
  • Boston Clinical Trials, Inc
    Boston, Massachusetts 02135, United States
  • NECCR Internal Medicine and Cardiology Associates, LLC
    Fall River, Massachusetts 02720, United States
  • Clinical Research Institute of Michigan, LLC
    Chesterfield, Michigan 48047, United States
  • Beyer Research
    Kalamazoo, Michigan 49009, United States
  • Remedica LLC
    Rochester, Michigan 48307, United States
  • American Center for Clinical Trials
    Southfield, Michigan 48034, United States
  • Ridgeview Research
    Chaska, Minnesota 55318, United States
  • The Center for Pharmaceutical Research, PC
    Kansas City, Missouri 64114, United States
  • Midwest Center for Clinical Research
    Lee's Summit, Missouri 64064, United States
  • St. Louis Center for Clinical Research
    Saint Louis, Missouri 63128, United States
  • Internal Medical Associates of Grand Island, PC
    Grand Island, Nebraska 68803, United States
  • Quality Clinical Research Inc.
    Omaha, Nebraska 68114, United States
  • Central Jersey Medical Research Center
    Elizabeth, New Jersey 07202, United States
  • South Jersey Gastroenterology, PA
    Marlton, New Jersey 08053, United States
  • Jeffrey Danzig
    Ridgewood, New Jersey 07450, United States
  • Albuquerque Clinical Trials, Inc
    Albuquerque, New Mexico 87102, United States
  • Lovelace Scientific Resources, Inc
    Albuquerque, New Mexico 87108, United States
  • NY Total Medical Care
    Brooklyn, New York 11215, United States
  • Synergy First
    Brooklyn, New York 11230, United States
  • Long Island Gastrointestinal Research Group LLP
    Great Neck, New York 11023, United States
  • Premier Medical Group of the Hudson Valley, PC
    Poughkeepsie, New York 12601, United States
  • North American Partners in Pain Management
    Valley Stream, New York 11580, United States
  • Paddu and Associates, LLP
    Woodside, New York 11377, United States
  • MediSpect, LLC
    Boone, North Carolina 28607, United States
  • Clinical and Translational Research Center Hospital
    Chapel Hill, North Carolina 27599-7600, United States
  • Carolina Digestive Health Associates
    Charlotte, North Carolina 28210, United States
  • Carolina Digestive Health Associates
    Davidson, North Carolina 28036, United States
  • LeBauer Research Associates, PA
    Greensboro, North Carolina 27403, United States
  • Medoff Medical / Vital re:Search
    Greensboro, North Carolina 27408, United States
  • Carolina Digestive Health Associates
    Harrisburg, North Carolina 28075, United States
  • Burke Primary Care
    Morgantown, North Carolina 28655, United States
  • Wake Research associates, LLC
    Raleigh, North Carolina 27612, United States
  • PMG Research of Wilmington
    Wilmington, North Carolina 28401, United States
  • PMG Research of Winston-Salem
    Winston-Salem, North Carolina 27103, United States
  • Valley Medical Research
    Centerville, Ohio 45459, United States
  • Hometown Urgent Care
    Columbus, Ohio 43214, United States
  • Hometown Urgent Care and Research
    Dayton, Ohio 45432, United States
  • Hometown Urgent Care
    Groveport, Ohio 43125, United States
  • Great Lakes Gastroenterology
    Mentor, Ohio 44060, United States
  • Hometown Urgent Care and Research
    Springfield, Ohio 45504, United States
  • Clinical Research Associates, LLC
    Oklahoma City, Oklahoma 73112, United States
  • Consultants in Gastroenerology
    Columbia, South Carolina 29203, United States
  • ClinSearch, LLC
    Chattanooga, Tennessee 37421, United States
  • Associates in Gastroenterology
    Hermitage, Tennessee 37076, United States

Showing the first 100 of 121 sites.

09

References and documents

Related links

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 28, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01429987
Lead sponsor
Bausch Health Americas, Inc.
Collaborators
Parexel
Responsible party
Sponsor
First posted
Sep 7, 2011
Start date
Oct 2011
Primary completion
Dec 2012
Completion
Dec 2012
Results posted
Nov 29, 2017
Last update
May 28, 2019

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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