A Study to Assess Adverse Events and Change in Symptoms With Linaclotide Versus Placebo in Pediat… (NCT05652205) | Clinical Trial Compass
CompletedPhase 3
A Study to Assess Adverse Events and Change in Symptoms With Linaclotide Versus Placebo in Pediatric Subjects, Ages 2 to 5 Years, With Functional Constipation
United States, Bulgaria, Netherlands123 participantsStarted 2022-12-29
Plain-language summary
Functional constipation (FC) is a common healthcare problem in children of all ages, potentially due to genetic predisposition, inadequate fiber and fluid intake, and immobility. Currently, there are no pharmacological therapies approved for the treatment of FC. This study will assess adverse events and change in disease activity with linaclotide therapy in participants with FC.
Linaclotide is an approved drug being developed for the treatment of FC in pediatric patients, ages 2 to 5, who meet modified Rome IV criteria for childhood FC. In Part 1 of this study, participants are placed in 1 of 2 groups, called treatment arms. Each group receives a different treatment. There is a 1 in 2 chance that participants will be assigned to placebo. All participants in Part 2 will receive linaclotide. Approximately 116 participants aged 2 to 5 years with FC will be enrolled in this study at around 45 sites worldwide.
Participants will receive daily doses of oral Linaclotide capsules or matching placebo for 12 weeks in Part 1 of the study. In Part 2, the open label long-term safety extension, participants with FC who completed study intervention in Part 1 of Study M21-572 or the Phase 2 Study LIN-MD-67 will receive linaclotide for 24 weeks.
There may be higher treatment burden for participants in this trial compared to their standard of care (due to study procedures). Participants will attend visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
Who can participate
Age range
2 Years – 5 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Caregiver/parent/guardian/legally authorized representative (LAR) is willing and able to comply with procedures required in this protocol, prior to the initiation of any screening or study-specific procedures. In addition, the caregiver/parent/guardian/LAR who will be completing the electronic diary (eDiary) must be able to read and understand the assessments in the eDiary device and undergo training.
* Participant meets modified Rome IV criteria for FC: For at least 1 month before Screening (Visit 1), 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) per week. In addition, at least once per week, participant must meet 1 or more of the following:
* History of retentive posturing or excessive volitional stool retention.
* History of painful or hard bowel movements (BMs).
* Presence of a large fecal mass in the rectum.
* History of large diameter stools.
* At least 1 episode of fecal incontinence per week after the acquisition of toileting skills, if applicable.
Exclusion Criteria:
* Participant history of:
* Celiac disease, or positive serological test for celiac disease or the condition is suspected but has not been ruled out by endoscopic biopsy
* Cystic fibrosis
* Hypothyroidism that is untreated or treated with thyroid hormone at a dose that has not been stable for at least 3 months prior to Screening (Visit 1)
*…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change From Baseline in 12-week Spontaneous Bowel Movement (SBM) Frequency Rate (SBMs/Week) Observed by the Primary Caregiver During the Double-blind Study Intervention Period
Timeframe: Baseline to Week 12
2
Number of Participants With Treatment-Emergent Adverse Events
Timeframe: From the time of study drug administration until 30 days or 5 half-lives after the last dose, up to 126 days in Period 1 and 226 days in Period 2