A Phase 1/2 interventional study of CLENPIQ and MIRALAX in Bowel Preparation, sponsored by Ferring Pharmaceuticals. Recruiting at 4 sites in United States. Open to participants aged 12 Months to 8 Years. Per ClinicalTrials.gov, last updated 2026-09-04.
Sponsored by Ferring Pharmaceuticals · Phase 1/2, Interventional, and Screening
Bowel preparation for pediatric colonoscopy.
Ferring Pharmaceuticals is the lead sponsor of 249 studies on the registry; 4 are open to participants now.
Of its 15 completed or terminated interventional studies of FDA-regulated products, 14 (93%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CLENPIQ administered using "split-dose" method and consists of two separate doses: the first dose (½ bottle \[approximately 80 mL\]) one day before colonoscopy between 5:00 PM and 9:00 PM, and the second dose (½ bottle \[approximately 80 mL\]) the next day, at least 5 hours prior but no more than 9 hours prior to the colonoscopy. Following each dose, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL.
Drug: CLENPIQ
MIRALAX 3.4 to 4.9 g/kg up to a maximum of 238 g is reconstituted with non-carbonated, clear beverage, or water and administered in increments of 4 ounce (oz) for every 30 minutes, one day before colonoscopy between 5:00 PM and 9:00 PM. Following dosing, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL total weight-based maximum.
Drug: MIRALAX · Drug: SENNA
CLENPIQ administered using "split-dose" method and consists of two separate doses: the first dose (1 bottle \[approximately 160 mL\]) one day before colonoscopy between 5:00 PM and 9:00 PM, and the second dose (½ bottle \[approximately 80 mL\]) the next day, at least 5 hours prior but no more than 9 hours prior to the colonoscopy. Following each dose, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL total weight-based maximum.
Drug: CLENPIQ
MIRALAX 3.4 to 4.9 g/kg up to a maximum of 238 g is reconstituted with non-carbonated, clear beverage, or water and administered in increments of 8 oz for every 30 minutes one day before colonoscopy between 5:00 PM and 9:00 PM. Following dosing, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL total weight-based maximum.
Drug: MIRALAX · Drug: SENNA
CLENPIQ administered using "split-dose" method and consists of two separate doses: the first dose (1/4 bottle \[approximately 40 mL\]) one day before colonoscopy between 5:00 PM and 9:00 PM, and the second dose (1/4 bottle \[approximately 40 mL\]) the next day, at least 5 hours prior but no more than 9 hours prior to the colonoscopy. Following each dose, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL.
Drug: CLENPIQ
MIRALAX 3.4 to 4.9 g/kg up to a maximum of 238 g is reconstituted with non-carbonated, clear beverage, or water and administered in increments of 8 oz for every 30 minutes one day before colonoscopy between 5:00 PM and 9:00 PM. Following dosing, participants will consume 50 mL/kg of clear liquids, up to a limit of 1,000 mL total weight-based maximum.
Drug: MIRALAX · Drug: SENNA
CLENPIQ consists of sodium picosulfate 10.0 mg + magnesium oxide 3.5 g + citric acid, anhydrous 12.0 g. Supplied as a pre-mixed, ready-to-drink oral solution in two bottles, each containing 160 mL.
MIRALAX powder for oral solution, supplied in a 8.3 oz multi-dose bottle containing 238 g of laxative powder (polyethylene glycol \[PEG\] 3350). MIRALAX is mixed with non-carbonated, clear beverage, or water and consumed at specified intervals until the total required dose.
SENNA Liquid (chocolate flavor) is an oral solution to be taken according to body weight (8.8 mg for 10-22 kg, 17.6 mg for 22-34 kg and 26.4 mg for \>34 kg) prior to MIRALAX.
Percentage of participants classified as responders, defined by "excellent" or "good" in the Modified Aronchick scale
The efficacy of overall colon cleansing in terms of responders will be graded by a blinded endoscopist using the Modified Aronchick Scale. It is a 4-point scale that grades colon cleansing as Excellent (\>90% of mucosa seen, mostly liquid stool, minimal suctioning needed for adequate visualization), Good (\>90% of mucosa seen, mostly liquid stool, significant suctioning needed for adequate visualization), Fair (\>90% of mucosa seen, mixture of liquid and semisolid stool, could be suctioned and/or washed) or Inadequate (\<90% of mucosa seen, mixture of semisolid and solid stool which could not be suctioned or washed).The participant is considered to be a responder if overall colon cleansing is "excellent" or "good" on this 4-point scale.
Time frame: On the day of colonoscopy (Day 1)
Percentage of participants classified as "excellent" in the Modified Aronchick scale
The efficacy of overall colon cleansing in terms of responders will be graded by a blinded endoscopist using the Modified Aronchick Scale. It is a 4-point scale that grades colon cleansing as Excellent (\>90% of mucosa seen, mostly liquid stool, minimal suctioning needed for adequate visualization), Good (\>90% of mucosa seen, mostly liquid stool, significant suctioning needed for adequate visualization), Fair (\>90% of mucosa seen, mixture of liquid and semisolid stool, could be suctioned and/or washed) or Inadequate (\<90% of mucosa seen, mixture of semisolid and solid stool which could not be suctioned or washed). Percentage of participants classified as "excellent" in the Modified Aronchick scale will be reported.
Time frame: On the day of colonoscopy (Day 1)
Percentage of participants who completed the assigned dose of CLENPIQ among participants in whom nasogastric tube was not utilized to assist with CLENPIQ dosing
A nasogastric tube may be inserted if the participant is likely to fail to drink the prescribed amount of cleanout preparation within the required time. Percentage of participants who completed the assigned dose of CLENPIQ without utilizing nasogastric tube will be reported.
Time frame: From randomization (Day -1) up to second dose of CLENPIQ (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How easy was it for you/the child to drink the bowel cleanout medicine?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/ parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=very easy, 2=easy, 3=okay, 4=difficult, 5=very difficult, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How did the bowel cleanout medicine taste?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/ parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=very well, 2=well, 3=okay, 4=bad, 5=very bad, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How often did your/the child's tummy hurt since you/the child started the cleanout?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=never, 2=rarely, 3=sometimes, 4=often, 5=very often, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How often did you/the child feel fullness in your/the child's tummy since you/the child started the cleanout?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/ parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=never, 2=rarely, 3=sometimes, 4=often, 5=very often, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How often did you/the child wake up last night?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/ parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=never, 2=rarely, 3=sometimes, 4=often, 5=very often, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How often did you/the child feel sick to your/the child's stomach (nausea) since you/the child started the cleanout?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/ parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=never, 2=rarely, 3=sometimes, 4=often, 5=very often, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Frequency of each category of the Modified Tolerability and Satisfaction Questionnaire: How much were you/the child bothered by going to the bathroom since you/the child started the cleanout?
The tolerability and satisfaction of colon cleansing preparation for colonoscopy will be assessed by the child/parent(s)/caregiver(s)/guardian(s) using modified tolerability and satisfaction questionnaire. The above question will be answered on a 6-point scale: (1=never, 2=rarely, 3=sometimes, 4=often, 5=very often, 6=do not know).
Time frame: On the day of colonoscopy (Day 1)
Systemic concentrations of picosulfate and bis-(p-hydroxyphenyl)-pyridyl-2-methane (BHPM, active metabolite of picosulfate)
Time frame: 3 to 6 hours after the second dose of CLENPIQ prior to colonoscopy (Day 1).
Systemic concentrations of magnesium at screening
At screening, PK assessments of magnesium concentrations will be performed for all participants.
Time frame: Screening (≤21 days before scheduled colonoscopy)
Systemic concentrations of magnesium after randomization
After randomisation, PK assessments of magnesium concentrations will be performed only for the participants randomized to CLENPIQ.
Time frame: 3 to 6 hours after second dose of CLENPIQ prior to colonoscopy (Day 1); 1 or 2 days after the colonoscopy (Day 2 or 3)
Percentage of participants with adverse events (AEs)
An AE is defined as any untoward medical occurrence in a participant participating in a clinical study. Percentage of participants with any AE (serious or non-serious) will be presented.
Time frame: From screening (≤21 days before scheduled colonoscopy) up to Day 28±7 after colonoscopy
Percentage of participants with abnormal findings in vital signs
Percentage of participants with abnormal findings (clinically significant) in vital signs will be reported.
Time frame: From screening (≤21 days before scheduled colonoscopy) up to Day 28±7 after colonoscopy
Percentage of participants with abnormal findings in clinical laboratory tests
Percentage of participants with abnormal findings (clinically significant) in clinical laboratory tests will be reported.
Time frame: From screening (≤21 days before scheduled colonoscopy) up to Day 28±7 after colonoscopy
Plan to share: No
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Started Jun 2022 (actual). Primary completion is estimated for Dec 2027, 66 months after the start.
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