A Safety and Efficacy Study of a Range of Linaclotide Doses Administered Orally to Children Ages 6-17 Years Who Fulfill Modified Rome III Criteria for Child/Adolescent Functional Constipation (FC)
Functional Constipation in Children Ages 6-17 Years
About this trial
This is an interventional treatment trial for Functional Constipation in Children Ages 6-17 Years focused on measuring Functional constipation in children, LINZESS
Eligibility Criteria
Inclusion Criteria:
- Participant weighs at least 18 kg (kilograms) (39.7 lbs)
- Participant meets modified Rome III criteria for child/adolescent FC: For at least 2 months before the Screening Visit, the participant has had 2 or fewer defecations (with each defecation occurring in the absence of any laxative, suppository, or enema use during the preceding 24 hours) in the toilet per week. In addition, at least once per week, patient meets 1 or more of the following:
- a) History of retentive posturing or excessive volitional stool retention
- b) History of painful or hard bowel movements (BMs)
- c) Presence of a large faecal mass in the rectum
- d) History of large diameter stools that may obstruct the toilet
- e) At least one episode of fecal incontinence per week
- Participant is willing to discontinue any laxatives used before the Pretreatment Visit in favor of the protocol-permitted rescue medicine
- Participant has an average of fewer than 3 spontaneous BMs (SBMs) per week during the 14 days before the randomization day and up to the randomization. An SBM is defined as a BM that occurs in the absence of laxative, enema, or suppository use on the calendar day of the BM or the calendar day before the BM
- Participant or participant/guardian/legally authorized representative (LAR) or caregiver is compliant with electronic diary (eDiary) by completing both the morning and evening assessments for 10 out of the 14 days immediately preceding the Randomization Visit
Exclusion Criteria:
- Participant meets Rome III criteria for Child/Adolescent irritable bowel syndrome (IBS): At least once per week for at least 2 months before the Screening Visit, the participant has experienced abdominal discomfort (an uncomfortable sensation not described as pain) or pain associated with 2 or more of the following at least 25% of the time:
- 1. Improvement with defecation
- 2. Onset associated with a change in frequency of stool
- 3. Onset associated with a change in form (appearance) of stool
- Participant reports having more than 1 loose, mushy stool (eDiary-recorded stool consistency of 6 on the Pediatric Bristol Stool Form Scale [p-BSFS]) or any watery stool (eDiary-recorded stool consistency of 7 on the p-BSFS) with any SBM that occurred in the absence of laxative use on the calendar day of the BM or the calendar day before the BM during the 14 days before the randomization day and up to the randomization
- Select medical history or conditions that may be related to other causes of constipation or may interfere with safety and efficacy analyses
- Participant has required manual or hospital-based disimpassion any time prior to randomization
- Participant is unable to tolerate the placebo during the Screening Period
Sites / Locations
- HealthStar Research, LLC
- Applied Research Center of Arkansas
- Advanced Research Center
- Kindred Medical Institute for Clinical Trials, LLC
- WCCT Global, LLC
- Ark Clinical Research
- ACTCA, Inc
- Children's Hospital Los Angeles
- Orange County Research Institute
- Center for Clinical Trials, LLC
- UCSD Rady Children's Hospital
- University of California at San Francisco
- Ventura Clinical Trials
- Colorado Springs Health Partners, HCP-Clinical Research, LLC
- Nova Southeastern University
- Homestead Research Institute
- RM Medical Research
- Advanced Medical Research Center
- SCORE Physician Alliance, LLC
- Children's Center for Digestive Health Care LLC
- Sleepcare Clinical Research Institute
- Riley Hospital for Children at Indiana University Health
- Heartland Research Associates, LLC
- Kentucky Pediatric/ Adult Research
- Kosair Children's Hospital - Pediatric Clinical Research Unit
- Michael W. Simon, MD, PSC
- Willis-Knighton Physician Network
- University of Maryland Children's Hospital
- Massachusetts General Hospital
- University Of Minnesota
- GI Associates and Endoscopy Center
- Craig A. Speigel, MD
- Midwest Children Health Research Institute
- Midwest Children Health Research Institute
- Goryeb Children's Hospital
- Columbia University Medical Center and Morgan Stanley
- Asheboro Research Associates
- University of North Carolina at Chapel Hill
- Capital Pediatrics and Adolescent Center PLLC
- Ohio Pediatric Research Association
- IPS Research Company
- Pediatric Care Specialists
- St. Christopher's Hospital for Children
- Children's Hospital of Pittsburgh of UPMC
- Preferred Primary Care Physicians, Inc.
- Frontier Clinical Research, LLC
- Montgomery Medical Inc.
- Rhode Island Hospital
- Coastal Pediatric Research
- Coastal Pediatrics Associates
- Cook Children's Medical Center
- Texas Children's Hospital/Baylor College Medicine
- Houston Clinical Research Associates
- Sun Research Institute
- Southwest Children's Research Associates, P.A.
- ClinPoint Trials
- Foothill Family Clinic South / J. Lewis Research, Inc.
- Pediatric Specialists of Virginia
- Virginia Tech Carilion School of Medicine Pediatric
- Seattle Children's Hospital
- Stollery Children's Hospital
- Children's Hospital of Western Ontario
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Placebo Comparator
Experimental
Experimental
Experimental
Experimental
Placebo
LIN Dose A (9 ug or 18 ug)
LIN Dose B (18 ug or 36 ug)
LIN Dose C (36 ug or 72 ug)
LIN 145 µg
Participants aged 6 to 11 or 12 to 17 years received matching placebo linaclotide (LIN), 30 minutes before evening meal, once daily for 4 weeks. Administered as liquid oral solution for participants 6 to 11 years of age and solid oral capsule or liquid oral solution for participants 12 to 17 years of age.
Participants aged 6 to 11 years with weight 18 to <35 kg received LIN 9 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 6 to 11 years with weight ≥35 kg received LIN 18 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 12 to 17 years received LIN 18 ug, oral solution or solid capsules, 30 minutes before evening meal, once daily for 4 weeks.
Participants aged 6 to 11 years with weight 18 to <35 kg received LIN 18 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 6 to 11 years with weight ≥35 kg received LIN 36 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 12 to 17 years received LIN 36 ug, oral solution or solid capsules, 30 minutes before evening meal, once daily for 4 weeks.
Participants aged 6 to 11 years with weight 18 to <35 kg received LIN 36 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 6 to 11 years with weight ≥35 kg received LIN 72 ug, oral solution, 30 minutes before evening meal, once daily for 4 weeks. Participants aged 12 to 17 years received LIN 72 ug, oral solution or solid capsules, 30 minutes before evening meal, once daily for 4 weeks.
Participants aged 12 to 17 years received LIN 145 ug, oral solution or solid capsules, 30 minutes before evening meal, once daily for 4 weeks.