Naglazyme After Allo Transplant for Maroteaux-Lamy Syndrome
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ClinicalTrials.gov Identifier: NCT02156674 |
Recruitment Status :
Terminated
(Slow accrual)
First Posted : June 5, 2014
Results First Posted : December 23, 2020
Last Update Posted : December 23, 2020
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Condition or disease | Intervention/treatment | Phase |
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Maroteaux-Lamy Syndrome | Drug: Naglazyme® | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 1 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Study of Administration of Intravenous Naglazyme® Following Allogeneic Transplantation for Maroteaux-Lamy Syndrome |
Actual Study Start Date : | January 26, 2016 |
Actual Primary Completion Date : | December 1, 2019 |
Actual Study Completion Date : | December 1, 2019 |

Arm | Intervention/treatment |
---|---|
Experimental: Naglazyme®
weekly Naglazyme® infusion for 2 years
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Drug: Naglazyme®
1 mg per kg of body weight administered once weekly as an intravenous infusion |
- Change in Urinary Glycosaminoglycan (GAG) Excretion [ Time Frame: Baseline and 2 years ]Change in urinary glycosaminoglycan (GAG) excretion from baseline to 2 years
- Change in Distance Traveled [ Time Frame: Baseline and 2 years ]Change in distance traveled in 6 minute walk and standard tests of range of motion and mobility. Improvement in distance walked from the start to study to end of the study is reported
- Change in Neurocognitive Ability [ Time Frame: Baseline and 2 years ]Subjects will undergo full neuropsychological testing annually and abbreviated testing for attention and adaptive skills at the six-month interval visits
- Number of Participants With Development of Neutralizing Antibodies to Naglazyme Therapy [ Time Frame: 6 months ]
Development of antibodies including neutralizing antibodies with weekly Naglazyme therapy and the impact of these antibodies on cardiorespiratory and skeletal parameters as measured by the 6--minute walk test and standard tests of range of motion and mobility, and the change in neurocognitive ability.
Anti-rhASB antibodies in patient's sera were tested in the Biomarin Laboratory using an in-house test of ELISA.
- Number of Participants With Development of Neutralizing Antibodies to Naglazyme Therapy [ Time Frame: 2 years ]
Development of antibodies including neutralizing antibodies with weekly Naglazyme therapy and the impact of these antibodies on cardiorespiratory and skeletal parameters as measured by the 6--minute walk test and standard tests of range of motion and mobility, and the change in neurocognitive ability.
Anti-rhASB antibodies in patient's sera were tested in the Biomarin Laboratory using an in-house test of ELISA.

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Ages Eligible for Study: | 3 Years and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Mucopolysaccharidosis type VI (MPS VI, Maroteaux-Lamy syndrome) treated with a prior allogeneic transplant >2 years previously
- Persons currently receiving Naglazyme may be accepted into the study
- Age > 2 years
- >10% engrafted based on most recent testing
- Willing to commit to traveling to the University of Minnesota every 6 months
- Written informed consent with parent/guardian consent for children < 18 years of age or persons unable to consent with minor assent if appropriate
Exclusion Criteria:
- History of cardiac or pulmonary insufficiency or those requiring continuous supplemental oxygen
- Pregnant or breastfeeding
- Any condition that, in the view of the investigator, places the patient at high risk of poor treatment compliance or of not completing the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02156674
United States, Minnesota | |
University of Minnesota Medical Center, Fairview | |
Minneapolis, Minnesota, United States, 55455 |
Principal Investigator: | Elizabeth Braulin, M.D. | University of Minnesota |
Documents provided by Masonic Cancer Center, University of Minnesota:
Responsible Party: | Masonic Cancer Center, University of Minnesota |
ClinicalTrials.gov Identifier: | NCT02156674 |
Other Study ID Numbers: |
2014LS014 MT2014-08R ( Other Identifier: University of Minnesota Blood and Marrow Transplant Program ) |
First Posted: | June 5, 2014 Key Record Dates |
Results First Posted: | December 23, 2020 |
Last Update Posted: | December 23, 2020 |
Last Verified: | December 2020 |
Maroteaux-Lamy Syndrome mucopolysaccharide VI MPS VI |
Mucopolysaccharidosis VI Syndrome Disease Pathologic Processes Mucopolysaccharidoses Carbohydrate Metabolism, Inborn Errors |
Metabolism, Inborn Errors Genetic Diseases, Inborn Lysosomal Storage Diseases Mucinoses Connective Tissue Diseases Metabolic Diseases |