Ambroxol Hydrochloride for Sanfilippo Syndrome (MPS III)

This study is testing Ambroxol Hydrochloride in adults (18 years and older) with Sanfilippo Syndrome (MPS III). Researchers want to see how safe Ambroxol Hydrochloride is and how well your body handles different doses (9 mg/kg/day, 18 mg/kg/day, or 27 mg/kg/day). The main goal is to check for any side effects and how well the drug is tolerated over 52 weeks. You can join if you have a confirmed genetic diagnosis of MPS III. This is an open-label study, meaning both you and the study team will know which dose you are receiving. Ten participants are planned for this study.

Study design
This is an open-label dose escalation study, meaning you and the study team will know which dose of Ambroxol Hydrochloride you are receiving. It plans to enroll 10 adult participants.
What's involved
You would participate in a screening period, followed by 52 weeks of treatment with Ambroxol Hydrochloride, taken orally. This involves blood and urine collections, questionnaires, motor skills assessments, and evaluations by the study doctor.
Compensation
Not stated in the trial record.
Follow-up
After the 52-week treatment period, there will be a 4-week withdrawal and safety follow-up period.

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NCT06614894

An Open Label Dose Escalation Study to Assess the Safety, Tolerability, and Pharmacologic Properties of High Dose Ambroxol Hydrochloride in Adult (≥ 18 Years of Age) Subjects With MPS III

Recruiting
PHASE2Ages 18–99InterventionalTreatment
Ozlem Goker-Alpan
~10 participants
Updated 2025-08-20 on ClinicalTrials.gov
What's tested:Ambroxol Hydrochloride 30 mg tablet - 9 mg/kg/dayAmbroxol Hydrochloride 30 mg tablet - 18 mg/kg/dayAmbroxol Hydrochloride 30 mg tablet - 27 mg/kg/day

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Safety and Tolerability
Measured over From baseline to 52 weeks
Sanfilippo Syndrome
MPS3
1 sites across 1 states
Virginia1
  • Ozlem Goker-Alpan, MD · PRINCIPAL_INVESTIGATOR · Lysosomal & Rare Disorders Research & Treatment Center, Inc.

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  • Safety and TolerabilityFrom baseline to 52 weeks

    1\. Safety and tolerability as measured by number of Participants with at least one serious and at least one non-serious Treatment Emergent Adverse Events (TEAEs), assessed by CTCAE v4.0.