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Mucopolysaccharidosis IPhase 4NCT00144781

A Dose-optimization Study of Aldurazyme® (Laronidase) in Patients With Mucopolysaccharidosis I (MPS I) Disease

A Phase 4 study testing Aldurazyme (Recombinant Human Alpha-L-Iduronidase) in people with Mucopolysaccharidosis I and Hurler's Syndrome, run by Genzyme, a Sanofi Company at 5 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The main purpose of this study is to evaluate differences in the pharmacodynamic response of 4 Aldurazyme® (laronidase) dose regimens in patients with Mucopolysaccharidosis I (MPS I). Read more about this study

Who is it for?
Any age
What is being tested?
Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
5 sitesin 2 countries
Study dates
Dec 2004to Jan 2006
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Have a documented diagnosis of MPS I, confirmed by measurable clinical signs and symptoms of MPS I, and a documented fibroblast or leukocyte α-L-iduronidase enzyme activity level of less than 10% of the lower limit of the normal range of the measuring laboratory.
  • Weigh at least 12.5 kg.
  • Have serum creatinine and blood urea nitrogen (BUN) values within age appropriate normal ranges.
  • Provide signed, written informed consent prior to any protocol-related procedures being performed. Consent of a legally authorized guardian(s) is (are) required for patients under 18 years. If the patient is under 18 years old and can understand the consent, written informed consent will be required from both the patient and the authorized guardian(s).

Who cannot join

  • Have previously received Aldurazyme® (laronidase).
  • Have a suspected hypersensitivity to Aldurazyme® (laronidase) or known hypersensitivity to components of the infusion solution.
  • Have previously undergone hematopoietic stem cell transplantation (HSCT; i.e., from bone marrow [BMT], peripheral blood, or umbilical cord blood) or other major organ transplantation.
  • Have a medical condition, serious inter-current illness, or other extenuating circumstance that may interfere with study compliance including all prescribed evaluations and follow-up activities, except the 6MWT. (Note: All patients may not be capable of performing the 6MWT due to age and/or maturity level. Exemption from performing the 6MWT must be obtained in writing by the investigator from the sponsor's medical monitor prior to enrollment).
  • Have an acute illness that requires surgical intervention, and/or anticipates surgery during study participation, and/or has had surgery within 30 days prior to study enrollment.
  • Have received an investigational drug within 30 days prior to study enrollment.
  • Is pregnant or lactating. Female patients of childbearing potential must have a negative pregnancy test [urine β-human chronic gonadotropin (hCG)] at entry (prior to the first infusion). Note: All female patients of childbearing potential and sexually mature males must be advised to use a medically accepted method of contraception throughout the study.

Trial locations and contacts

5 sites in 2 countries.

5 sites in 2 countries

Brazil4 sites
  • Universidade Federal de Minas Gerais

    Belo Horizonte, CEP 30130-100

  • Hospital Infantil Joana de Gusmao

    Florianópolis, Santa Catarina, CEP 88025-601

  • Hospital de Clinical de Porto Alegre

    Porto Alegre, CEP 90035-003

  • Universidade Federal de Sao Paulo

    São Paulo, CEP 04023-062

Other trials in Brazil

Canada1 site
  • Division of Clinical and Metabolic Genetics

    Toronto, Ontario, M5G 1X8

Other trials in Canada

About this study

Official title: A Multicenter, Multinational, Randomized, Dose-Optimization Study of the Safety and Pharmacodynamic Response of Aldurazyme® (Laronidase) in Patients With Mucopolysaccharidosis I

The main purpose of this study is to evaluate differences in the pharmacodynamic response of 4 Aldurazyme® (laronidase) dose regimens in patients with Mucopolysaccharidosis I (MPS I).

Being tested
Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
Medical subject headings
Mucopolysaccharidosis I

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Aldurazyme (Recombinant Human Alpha-L-Iduronidase)Biological

    0.58 mg/kg every week

  • Aldurazyme (Recombinant Human Alpha-L-Iduronidase)Biological

    1.2 mg/kg every week

  • Aldurazyme (Recombinant Human Alpha-L-Iduronidase)Biological

    1.2 mg/kg every other week

  • Aldurazyme (Recombinant Human Alpha-L-Iduronidase)Biological

    1.8 mg/kg every other week

Study groups in NCT00144781
Study groupRoleWhat they receive
1Active comparator0.58 mg Aldurazyme/kg of body weight (100 U/kg) administered every week (labeled dose). Final Visit is Week 27 for patients randomized to every week regimen.
Receives: Biological: Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
2Active comparator1.2 mg Aldurazyme/kg of body weight (200 U/kg) administered every week. Final Visit is Week 27 for patients randomized to every week regimen.
Receives: Biological: Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
3Active comparator1.2 mg Aldurazyme/kg of body weight (200 U/kg) administered every 2 weeks. Final Visit is Week 26 for patients randomized to every 2 week regimen.
Receives: Biological: Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
4Active comparator1.8 mg Aldurazyme/kg of body weight (300 U/kg) administered every 2 weeks. Final Visit is Week 26 for patients randomized to every 2 week regimen.
Receives: Biological: Aldurazyme (Recombinant Human Alpha-L-Iduronidase)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percent Change From Baseline to Week 26 in Urinary Glycosaminoglycan (GAG) Level

    Urinary GAG Level - Concentration of GAG relative to creatinine in urine. A greater decrease in GAG level indicates a greater response.

    Measured: Baseline to 26 Weeks

Secondary outcomes (2)
  1. Percent Change From Baseline to Week 26 in Liver Organ Volume

    A greater decrease in liver volume indicates a greater response.

    Measured: Baseline to 26 Weeks

  2. Change From Baseline to Week 26 in Six Minute Walk Test (6MWT)

    Six Minute Walk Test: Distance walked (measured in Meters) in 6 minutes. A longer distance indicates a greater response.

    Measured: Baseline to 26 Weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Sep 2005 (estimated)
  2. Study startDec 2004
  3. Primary completionJan 2006
  4. Study completionJan 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00144781
Sponsor's protocol ID
ALID-017-03
Status last verified
Mar 2015
First submitted
2 Sep 2005
Last updated
3 Apr 2015

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Aldurazyme (Recombinant Human Alpha-L-Iduronidase) in people with Mucopolysaccharidosis I and Hurler's Syndrome, run by Genzyme, a Sanofi Company at 5 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Apr 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in Brazil, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jun 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percent Change From Baseline to Week 26 in Urinary Glycosaminoglycan (GAG) Level (time frame: Baseline to 26 Weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Apr 2015.

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