Intrathecal Enzyme Replacement for Hurler Syndrome - Full Text View

Sponsor:	Masonic Cancer Center, University of Minnesota
Information provided by:	Masonic Cancer Center, University of Minnesota
ClinicalTrials.gov Identifier:	NCT00638547

Purpose

This protocol will examine whether the enzyme -L-iduronidase, delivered into the spinal fluid of patients with Hurler syndrome at intervals before and after bone marrow transplant, is a safe and effective approach to slow the neurologic degeneration seen in Hurler patients undergoing transplantation.

Condition	Intervention	Phase
MPS IH (Hurler Syndrome)	Drug: IRT Laronidase	Phase I

Study Type:	Interventional
Study Design:	Treatment, Open Label, Uncontrolled, Single Group Assignment, Safety/Efficacy Study
Official Title:	Intrathecal Enzyme Replacement Therapy For Patients With Mucopolysaccharidosis Type I (Hurler Syndrome)

Resource links provided by NLM:

Genetics Home Reference related topics: mucopolysaccharidosis type I

Drug Information available for: Laronidase

U.S. FDA Resources

Further study details as provided by Masonic Cancer Center, University of Minnesota:

Primary Outcome Measures:

To demonstrate the efficacy of intrathecally delivering alpha-L-iduronidase in patients with mucopolysaccharidosis type I in decreasing neurodevelopmental deterioration [ Time Frame: 1 year ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

To determine the safety and toxicity of intrathecally delivering alpha-L-iduronidase in patients with mucopolysaccharidosis type I [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]
To determine brain changes with magnetic resonance imaging [ Time Frame: 1 and 2 years ] [ Designated as safety issue: No ]
To determine neurocognitive changes present in patients with Hurler syndrome [ Time Frame: 6, 12, and 24 months ] [ Designated as safety issue: No ]
To evaluate memory/encoding [ Time Frame: 12 and 24 months after hematopoietic stem cell transplantation ] [ Designated as safety issue: No ]
To determine cerebral spinal fluid levels of glycosaminoglycans, cytokines and antibodies to Laronidase at baseline and at each point CSF is obtained [ Time Frame: through 1 year ] [ Designated as safety issue: Yes ]

Estimated Enrollment:	25
Study Start Date:	December 2007
Estimated Study Completion Date:	December 2014
Estimated Primary Completion Date:	December 2012 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Intent-to-Treat: Experimental All patients who have received at least one dose of Laronidase.	Drug: IRT Laronidase Laronidase belongs to a class of drugs called enzyme replacement therapies or ERT that provides people with sufficient quantities of an important enzyme that they cannot create on their own. The main ingredient in laronidase is a protein that is identical to a naturally occurring form of the human enzyme alpha-L-iduronidase. Laronidase replaces the missing enzyme alpha-L-iduronidase and restores sufficient enzyme activity to break down GAG buildup. Subjects will receive an infusion of Laronidase into his/her spinal fluid approximately 12 weeks before, 2 weeks before, 100 days after and 6 months after transplant. This procedure is done by lumbar puncture

Arms

Assigned Interventions

Intent-to-Treat: Experimental

All patients who have received at least one dose of Laronidase.

Drug: IRT Laronidase

Laronidase belongs to a class of drugs called enzyme replacement therapies or ERT that provides people with sufficient quantities of an important enzyme that they cannot create on their own. The main ingredient in laronidase is a protein that is identical to a naturally occurring form of the human enzyme alpha-L-iduronidase. Laronidase replaces the missing enzyme alpha-L-iduronidase and restores sufficient enzyme activity to break down GAG buildup.

Subjects will receive an infusion of Laronidase into his/her spinal fluid approximately 12 weeks before, 2 weeks before, 100 days after and 6 months after transplant. This procedure is done by lumbar puncture

Detailed Description:

Subjects will receive an infusion of Laronidase into his/her spinal fluid approximately 12 weeks before, 2 weeks before, 100 days after and 6 months after transplant (performed on another study protocol). This procedure is done by lumbar puncture (also called a "spinal tap").

Eligibility

Ages Eligible for Study:	6 Months to 3 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Patients with a diagnosis of MPS IH (Hurler syndrome) are candidates for this protocol if they are being considered for hematopoietic stem cell transplantation according the University of Minnesota guidelines.

Exclusion Criteria:

Patients are less than 8 months old, or older than 3 years of age.
There is a history of clinically-severe hypersensitivity to Laronidase.
There is a contraindication for repeated lumbar puncture.
The family is not willing to undergo the necessary procedures and evaluations inherent in the study.
Consent has not been signed for participation in the 2004-09 study of intravenous Laronidase administration.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00638547

Contacts

Contact: Paul Orchard, MD	612-626-1926	orcha001@umn.edu
Contact: Teresa Kvisto, RN	612-273-2800	tkvist1@fairview.org

Locations

United States, Minnesota
University of MInnesota, Fairview	Recruiting
Minneapolis, Minnesota, United States, 55455
Contact: Tim Krepski, RN 612-273-2800
Contact: Teresa Kvisto, RN 612-273-2800 tkvist!@fairview.org

Sponsors and Collaborators

Masonic Cancer Center, University of Minnesota

Investigators

Principal Investigator:

Paul Orchard, MD

University of Minnesota Medical Center

More Information

No publications provided

Responsible Party:	Masonic Cancer Center, University of Minnesota ( Paul Orchard, M.D. )
Study ID Numbers:	0707M11762, MT2007-10
Study First Received:	March 11, 2008
Last Updated:	November 19, 2009
ClinicalTrials.gov Identifier:	NCT00638547 History of Changes
Health Authority:	United States: Food and Drug Administration

Keywords provided by Masonic Cancer Center, University of Minnesota:

Hurler Syndrome
mucopolysaccharidosis type I
Iduronidase deficiency

Additional relevant MeSH terms:

Metabolism, Inborn Errors
Mucopolysaccharidoses
Pathologic Processes
Disease
Metabolic Diseases
Genetic Diseases, Inborn

Lysosomal Storage Diseases
Syndrome
Connective Tissue Diseases
Mucinoses
Carbohydrate Metabolism, Inborn Errors
Mucopolysaccharidosis I

ClinicalTrials.gov processed this record on November 30, 2009