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CompletedNCT01416467CPPGALUpdated Oct 11, 2018

Characterization of the Patient Population With Galactosialidosis

An observational study in Galactosialidosis, sponsored by St. Jude Children's Research Hospital. Completed at 1 site in United States. Open to participants aged 6 Months and older. Per ClinicalTrials.gov, last updated 2018-10-11.

Sponsored by St. Jude Children's Research Hospital · Observational

Study type
Observational
Model
Case-only
Time perspective
Other
Enrollment
3
Ages
6 Months and older
Sex
All
01

Study summary

The late infantile form of galactosialidosis is potentially amenable to treatment by gene transfer with an adeno-associated viral vector encoding Protective Protein Cathepsin A (PPCA) or by infusion of purified protein. The published literature contains limited descriptions of the disease nor is it known how many patients with the disorder are potentially available for protocol enrollment. This preliminary study is designed to define the demographics and clinical characteristics of the patient population with galactosialidosis. Individuals for whom DNA diagnosis has been performed at St. Jude Children's Research Hospital (SJCRH) will be contacted telephonically to learn their current status. In addition, a letter requesting information regarding patients with galactosialidosis will be sent to all pediatric geneticists throughout the United States. Selected physicians with expertise in lysosomal storage diseases throughout the world will also be contacted. Foundations and Associations for the lysosomal storage disorders will also be contacted in an effort to identify additional potential patients with galactosialidosis. The information to be collected in this preliminary study will facilitate development of specific eligibility criteria for future therapeutic studies.

Read the detailed description

Individual patient/families will be interviewed by telephone to learn basic demographic information and disease status. Medical records will be requested from primary care providers to provide further information regarding their disorder. Individual patients identified through our survey of pediatric geneticists or via the disease foundations or associations will be sent a letter describing our purpose and which includes a consent form for a subsequent telephonic interview. Their medical records will also be requested.

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Conditions studied

  • Galactosialidosis

Keywords

  • lysosomal storage disease
  • AAV vector
  • gene transfer
  • disease characterization
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In context

Lysosomal Storage Diseases

62 studies on the registry are indexed under Lysosomal Storage Diseases; 14 are open to participants now.

This study's enrollment of 3 is below the median of 78 across 26 observational studies indexed under Lysosomal Storage Diseases.

Browse Lysosomal Storage Diseases studies →

Lead sponsor

St. Jude Children's Research Hospital is the lead sponsor of 434 studies on the registry; 99 are open to participants now.

Of its 60 completed or terminated interventional studies of FDA-regulated products, 35 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Months and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Individuals with suspected or diagnosed galactosialidosis.

Inclusion criteria

  • Individuals with suspected or confirmed molecular diagnosis of galactosialidosis who are ≥ 6 months of age.

Exclusion criteria

Exclusion Criteria:

  • Individuals with a lysosomal storage disorder who have been shown to have a mutation in a gene other than that encoding PPCA.
05

Study design

Observational model
Case-only
Time perspective
Other
Enrollment
3 participants (actual)
Biospecimen retention
Samples with dna
06

What researchers measure

Primary outcomes

  1. Mean, median and standard deviation of age distribution of patients with galactosialidosis.

    The clinical and demographic data will be tabulated and analyzed for age distribution and disease manifestations with a goal of defining eligibility criteria for future therapeutic protocols.

    Time frame: At enrollment

Secondary outcomes

  1. Number and type of PPCA gene mutations in patients with galactosialidosis.

    The genotyping data will be tabulated and analyzed to determine the spectrum of mutations that result in the late infantile form of galactosialidosis.

    Time frame: At enrollment

07

Study locations

1 site
  • St. Jude Children's Research Hospital
    Memphis, Tennessee 38105, United States
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References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 11, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01416467
Lead sponsor
St. Jude Children's Research Hospital
Collaborators
Assisi Foundation, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Responsible party
Sponsor
First posted
Aug 15, 2011
Start date
Feb 8, 2012
Primary completion
Apr 12, 2012
Completion
Apr 12, 2012
Last update
Oct 11, 2018

Study contacts

Ulrike Reiss, MD
principal investigator · St. Jude Children's Research Hospital
Alessandra D'Azzo-Grosveld, PhD
principal investigator · St. Jude Children's Research Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.

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