Ascending Doses of Crofelemer Powder for Oral Solution in Pediatric Microvillus Inclusion Disease (MVID)

Running, not enrolling · Phase 2/Phase 3 · Has a placebo group

Conditions studied: Microvillus Inclusion Disease, Congenital Disorders, Rare Diseases

In brief

A study that will evaluate the safety, tolerability and preliminary efficacy of multiple ascending doses of crofelemer, compared to placebo, using a randomized cross-over design within each dose level, when administered to participants with MVID receiving parenteral support (PS, defined as TPN with or without supplementary IV fluid requirements). Blinded study drug will be administered as a novel crofelemer formulation, Crofelemer Powder for Oral Solution, or a matching placebo powder formulation for oral solution. Assigned study drug will be reconstituted and administered orally (or enterally) three times daily (TID) as a concentrated liquid formulation in each of the three dose levels.

Key facts

Study ID: NCT06721871
Run by: Napo Pharmaceuticals, Inc.
People needed: 6
Starts: 2025-05-01
Expected to finish: 2026-12-01
Last updated by the study team: 2026-06-09

Who can join

Age: any, up to 17. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

Participants (assent for participants older than 7 years of age) and/or their legal parent/guardian sign an Informed Consent Form (ICF) indicating that they understand the purpose of the procedures required for the study and are willing to participate
When appropriate, pediatric participants, whose age, cognitive skills, reading abilities and maturity allow the understanding of the study protocol should provide written assent to participate.
Male or female participants from birth to < 18 years at the time of signing the informed consent or providing assent
Have a confirmed diagnosis (genetic and/or histologic) of MVID
Are able to ingest reconstituted Crofelemer Powder for Oral Solution either orally (PO) or through a previously-placed G-tube or GJ-Tube (not via J-Tube)
Have, during the 8 weeks prior to baseline, an average weekly volume of PS that represents at least 50% (≥ 50%) of the participant's weekly hydration volume requirements
If female participants have reached menarche, the participant (and caregiver) agree that the participant will remain abstinent or use two accepted methods of birth control during the course of the treatment period and for an additional 30 days following the last dose of study drug.
Male participants (and caregiver) agree that the participant will remain abstinent or use contraception during the course of the treatment period and continue on for an additional 90 days following the last dose of study drug.

You may not qualify if…

Within the last 4 weeks before study initiation, participants have:
had significant changes to PS requirements (i.e., ± > 20%)
had a new requirement for diuretics
had any infection requiring IV antibiotic administration
had a documented active gastrointestinal infection
initiated any new anti-diarrheal drug
had an increase in ALT, AST, or total bilirubin that is ≥2 times the participant's usual laboratory values
previously received an organ transplant
any currently-diagnosed malignancy
is pregnant or breastfeeding
any investigator determined criteria for inability to participate in this study
Known hypersensitivity to any of the components of study drug

Where it is running

Boston Children's Hospital — Boston, Massachusetts, United States
UOS Gastroenterolgia e Riabilitazione nutrizionale Piazza Sant' Onofrio 4 — Rome, Italy
Al Jalila Children's Hospital — Dubai, United Arab Emirates

Full record on ClinicalTrials.gov

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