Clinical trial Recruiting at 41 sites Phase 3 Interventional Ages 1 Year to 17

PLENVU versus sodium picosulfate bowel preparation for children having a colonoscopy

Official title: A Phase 3, Multicentre, Randomised (1:1), Parallel-group, Active-controlled, Central Reader Colonoscopist-blind Study to Evaluate the Bowel Cleansing Efficacy, Safety, Tolerability, Palatability, and Acceptability of PLENVU® as Compared to Sodium Picosulfate in Paediatric Participants From 1 to < 18 Years of Age in Preparation for Colonoscopy (CLARITY)

Run by Norgine · NCT07218523 · Data updated 2026-11-12

This trial will try whether PLENVU® cleans the bowel as well and is as safe and tolerable as sodium picosulfate in children under 18 preparing for a colonoscopy.

More Bowel Cleansing Prior to Clinical Procedures trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages1 Year to 17 Years
SexAll
Enrollment212 (estimated)
SponsorNorgine
Industry-sponsored
Locations46 sites (Edegem, Antwerp and 45 other locations)
StatusRecruiting
StartedDecember 29, 2025
Main results expectedJanuary 6, 2027
Study endsJanuary 6, 2027
Registry record updatedOctober 7, 2026
Trial IDNCT07218523 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 1 to under 18 years who require a colonoscopy, weigh at least 10 kg (with ages 1 to <4 years above the 10th weight percentile), are not breastfeeding or pregnant, and can be admitted to the clinical research unit for dosing and the procedure.

Probably not a fit

Patients with recent severe constipation requiring repeated interventions, known or suspected GI obstruction, ileus, perforation, toxic or ischemic colitis, megacolon, or those who cannot take the oral preparations or are breastfeeding/pregnant are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a multicentre, randomized (1:1), active-controlled Phase 3 trial comparing PLENVU® to sodium picosulfate using a two-day split dosing regimen in paediatric participants scheduled for colonoscopy. Participants are admitted to a clinical research unit on Day 1 for intervention administration and remain for the colonoscopy on Day 2, with a safety follow-up by call or visit around Day 9. Bowel cleansing success will be measured using standard scales (e.g., Harefield and Boston bowel preparation scales) along with safety and tolerability assessments. The trial is being conducted at three Belgian centres and includes screening up to 28 days prior to dosing.

Why it matters

Potential benefit: If successful, the intervention could offer a more effective or better-tolerated bowel preparation option for children, improving colon visualization and diagnostic accuracy.

How similar studies have gone: Low-volume bowel preparations like PLENVU® have shown good efficacy and tolerability in adults, but randomized pediatric data are limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants who require a colonoscopy.
* Must weigh a minimum of 10 kg, and participants aged 1 to \< 4 years of age must be above the 10th percentile of weight for age.
* Must have a negative urine pregnancy test (or serum if a urine pregnancy test cannot be confirmed as negative \[e.g. three ambiguous results\]) within 24 hours before the first dose of study intervention.
* Must use a highly effective method of contraception (failure rate \< 1% per year) from Day 1 and throughout the Safety Follow-up Period.
* Must not be breastfeeding.
* Participant is able to receive regular external feeding without breastfeeding.

Exclusion Criteria:

* Has a past history within last 12 months or current episode of severe constipation (requiring repeated use of laxatives/enema or physical intervention before resolution).
* Has known or suspected ileus, GI obstruction, gastric retention, bowel perforation, toxic colitis, ischaemic colitis, or megacolon.
* Has ongoing severe acute inflammatory bowel disease that contraindicates colonoscopy.
* Participant has history of significant GI surgeries.
* Has known glucose-6-phosphate dehydrogenase (G6PD) deficiency or phenylketonuria.
* Participant has a past history within the last 12 months or evidence of any ongoing clinically relevant electrocardiogram (ECG) abnormalities (e.g. arrhythmias).
* Has a history of uncontrolled hypertension.
* Participant has regularly used laxatives or colon motility altering drugs in the last month (i.e. more than two times per week) and/or has used one or more laxatives within 72 hours prior to administration of the preparation.
* Has known hypersensitivity or allergic reaction to PEG, ascorbic acid, sodium picosulfate, magnesium oxide, or any other component of the investigational product or comparator.
* Received or scheduled to receive any vaccines or devices within one week prior to first dose of study intervention.
* Has a significant neurological disorder or a past history of seizures (excluding simple febrile seizures) or is currently on medication lowering seizure threshold (e.g. tricyclic antidepressants) or has used seizure threshold lowering medication within 14 days prior to administration of the preparation.

Where it's running

  • Universitair Ziekenhuis Antwerpen (UZA)
    Edegem, Antwerp, Belgium
    Recruiting
  • Universitair Ziekenhuis Brussel (AZ-VUB - Academisch Ziekenhuis der Vrije Universiteit Brussel)
    Jette, Brussels Capital, Belgium
    Recruiting
  • Clinique CHC MontLegia
    Alleur, Liege, Belgium
    Recruiting
  • Clinical Hospital Centre Rijeka
    Rijeka, Primorje-Gorski Kotar County, Croatia
    Recruiting
  • Krankenhaus Barmherzige Brueder Regensburg - Klinik fuer Kinder- und Jugendmedizin
    Regensburg, Bavaria, Germany
    Recruiting
  • Universitaetsklinikum Muenster (UKM) - Klinik fuer Kinder- und Jugendmedizin - Allgemeine Paediatrie
    Münster, North Rhine-Westphalia, Germany
    Recruiting
Show 40 more locations
  • Charité Universitätsmedizin Berlin
    Berlin, State of Berlin, Germany
    Recruiting
  • Semmelweis Egyetem Gyermekgyogyaszati Klinika Bokay Utcai Reszleg
    Budapest, Budapest, Hungary
    Recruiting
  • Heim Pal Orszagos Gyermekgyogyaszati Intezet
    Budapest, Budapest, Hungary
    Recruiting
  • Borsod-Abauj-Zemplen Megyei Kozponti Korhaz es Egyetemi Oktato Korhaz
    Miskolc, Miskolc, Hungary
    Recruiting
  • Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII
    Bergamo, Bergamo, Italy
    Recruiting
  • Azienda Ospedaliera Universitaria Meyer IRCCS
    Florence, Firenze, Italy
    Recruiting
  • Azienda Ospedaliera Universitaria Gaetano Martino
    Messina, Messina, Italy
    Recruiting
  • Ospedale Maggiore Policlinico, Fondazione IRCCS Ca' Granda
    Milan, Milano, Italy
    Recruiting
  • Azienda Ospedaliera di Rilievo Nazionale (AORN) Santobono Pausilipon
    Naples, Napoli, Italy
    Recruiting
  • Azienda Ospedaliera Universitaria Federico II - Pediatria Generale
    Naples, Napoli, Italy
    Recruiting
  • AOU Università degli studi della Campania Luigi Vanvitelli, Policlinico di Napoli - Pediatria
    Naples, Napoli, Italy
    Recruiting
  • Azienda Ospealiero Universitaria Policlinico Umberto I
    Roma, Roma, Italy
    Recruiting
  • Policlinico Gemelli - Endoscopia Digestiva Chirurgica
    Roma, Roma, Italy
    Recruiting
  • Amphia Hospital - Pediatrics
    Breda, North Brabant, Netherlands
    Recruiting
  • Amsterdam UMC - Pediatrics
    Amsterdam, North Holland, Netherlands
    Recruiting
  • Isala Klinieken
    Zwolle, Overijssel, Netherlands
    Recruiting
  • Wojewodzki Szpital Zespolony im. L. Rydygiera w Toruniu - Oddzial Pediatrii i Gastroenterologii
    Torun, Kuyavian-Pomeranian Voivodeship, Poland
    Recruiting
  • Uniwersytecki Szpital Dzieciecy w Krakowie
    Krakow, Lesser Poland Voivodeship, Poland
    Recruiting
  • Instytut "Pomnik - Centrum Zdrowia Dziecka" - Oddzial Gastroenterologii, Hepatologii, Zaburzen Odzywiania i Pediatrii
    Warsaw, Masovian Voivodeship, Poland
    Recruiting
  • Uniwersytecki Dzieciecy Szpital Kliniczny Imienia Ludwika Zamenhofa w Bialymstoku - Klinika Pediatrii, Gastroenterologii, Hepato
    Bialystok, Podlaskie Voivodeship, Poland
    Recruiting
  • Samodzielny Publiczny Szpital Kliniczny Nr 1 im. prof. Stanislawa Szyszko SUM w Katowicach Oddzial Gastroenterologii i Hepatolog
    Zabrze, Silesian Voivodeship, Poland
    Recruiting
  • Centro Clínico Académico(CCA) - Braga, Associação (2CA-Braga)
    Braga, Braga District, Portugal
    Recruiting
  • Hospital da Luz S.A.
    Lisbon, Lisbon District, Portugal
    Recruiting
  • Unidade Local De Saude De Santo Antonio E.P.E.
    Porto, Porto District, Portugal
    Recruiting
  • Complejo Hospitalario Universitario de Ferrol
    Ferrol, A Coruña, Spain
    Recruiting
  • Hospital Universitario Son Espases
    Palma de Mallorca, Balearic Islands, Spain
    Recruiting
  • Parc Tauli Hospital Universitarli
    Sabadell, Barcelona, Spain
    Recruiting
  • Hospital Infantil Universitario Niño Jesús
    Madrid, Madrid, Spain
    Recruiting
  • Hospital Materno Infantil de Málaga
    Málaga, Málaga, Spain
    Recruiting
  • NHS Lothian - Royal Hospital for Children & Young People
    Edinburgh, Edinburgh, City of, United Kingdom
    Recruiting
  • Great North Children's Hospital - Royal Victoria Infirmary
    Newcastle upon Tyne, Newcastle Upon Tyne, United Kingdom
    Recruiting
  • Sheffield Children's NHS Foundation Trust - Sheffield Children's Hospital
    Sheffield, Sheffield, United Kingdom
    Recruiting
  • King's College Hospital NHS Foundation Trust
    London, York, United Kingdom
    Recruiting
  • Birmingham Women's and Children's NHS Foundation Trust - Birmingham Children's Hospital
    Birmingham, United Kingdom
    Recruiting
  • Barts Health NHS Trust
    London, United Kingdom
    Recruiting
  • Helios Uniklinikum Wuppertal
    Wuppertal, North Rhine-Westphalia, Germany
    Withdrawn
  • Universitätsmedizin Der Johannes Gutenberg-Universität Mainz KöR
    Mainz, Rhineland-Palatinate, Germany
    Withdrawn
  • Azienda Ospedaliero-Universitaria Sant'Andrea - Pediatria
    Roma, Roma, Italy
    Withdrawn
  • Gdanski Uniwersytet Medyczny (GUMed) - Katedra i Klinika Pediatrii, Gastroenterologii, Alergologii i Zywienia Dzieci
    Gdansk, Pomeranian Voivodeship, Poland
    Withdrawn
  • Hospital Pediatrico da Unidad Local de Saude de Coimbra
    Coimbra, Coimbra District, Portugal
    Not yet recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.