A Single Patient Study of Sapropterin for Multisystem Smooth Muscle Dysfunction Syndrome
NCT07574034 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 1
Last updated 2026-05-07
Summary
There is currently no approved treatment for multisystem smooth muscle dysfunction syndrome (MSMDS). This single-patient study is the first to be conducted in a child with MSMDS in Canada and was designed to provide the child with access to sapropterin treatment. The molecule we will be using, sapropterin (Kuvan), is already approved and available for other indications. This disease is caused by a genetic variant in the ACTA2 gene. This variant prevents the small units of actin fibers, which are the molecular motors of the smooth muscle cell, from assembling correctly. The goal is to gather data so that the drug can be approved for this indication and thus treat the patient.
Conditions
- Multisystemic Smooth Muscle Dysfunction Syndrome
Interventions
- DRUG
-
Kuvan (Sapropterine)
Sapropterine is already approved in Canada for the treatment of phenylketonuria (PKU) and has shown promise as an agent against multisystem smooth muscle dysfunction syndrome (MSMS) in an animal model. No clinical trials are currently underway with sapropteride for MSMS.
Sponsors & Collaborators
-
Gregor Andelfinger
lead OTHER
Study Design
- Allocation
- NA
- Purpose
- TREATMENT
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 1 Month
- Max Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2026-06-01
- Primary Completion
- 2028-06-01
- Completion
- 2030-06-01
Countries
- Canada
Study Locations
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