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Mucopolysaccharidosis IPhase 2NCT00146757

A Study Evaluating the Safety and Pharmacokinetics of Aldurazyme® (Laronidase) in MPS I Patients Less Than 5 Years Old

A Phase 2 study testing Aldurazyme (Recombinant Human Alpha-L-Iduronidase) in people with Mucopolysaccharidosis I and Hurler Syndrome, run by Genzyme, a Sanofi Company at 4 sites in 4 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 objectives of this study are to evaluate the safety and pharmacokinetics (PK) of enzyme replacement therapy with recombinant human alpha-L-iduronidase [Aldurazyme® (laronidase)] in mucopolysaccharidosis I (MPS I) patients less than 5 years old. Efficacy measurements will also be evaluated in this study. Read more about this study

Who is it for?
Ages Up to 5 years
What is being tested?
Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
4 sitesin 4 countries
Study dates
Oct 2002to May 2005
Phase
Phase 2
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 Up to 5 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Written informed consent is required from the parent(s) or legal guardian(s) prior to any protocol-related procedures being performed. (A separate informed consent will be requested from the parent(s) for their genotyping, which is independent of the inclusion.)
  • Be less than 5 years of age at the time of enrollment.
  • Have confirmed iduronidase deficiency with a fibroblast or leukocyte alpha-L-iduronidase enzyme activity level of less than 10.0 % of the lower limit of the normal range, or below the detection range of the measuring laboratory.
  • Have a clinical diagnosis of MPS I based on genotyping.
  • Documentation in his/her medical record that the parent(s) or legal guardian(s) have had counseling or a consultation regarding HSCT in order to assure that the parent(s) or legal guardian(s) are fully informed regarding the risks and benefits of this alternative treatment for patients eligible for the trial and with the severe manifestations of MPS I with neurodegeneration.

Who cannot join

  • The patient is under consideration for or has undergone hematopoietic stem cell transplantation (HSCT).
  • The patient has acute hydrocephalus at the time of enrollment.
  • The patient has a clinically significant organic disease (with the exception of symptoms relating to MPS I) including: cardiovascular, hepatic, pulmonary, neurologic, or renal disease, other serious intercurrent illness, or extenuating circumstances that, in the opinion of the Investigator, would preclude participation in the trial or potentially decrease survival.
  • The patient has received any investigational product within 30 days prior to trial enrollment.
  • The patient has known severe hypersensitivity to Aldurazyme® (laronidase) or components of the delivery solution.

Trial locations and contacts

4 sites in 4 countries.

4 sites in 4 countries

France1 site
  • Hôpital E. Herriot

    Lyon

Other trials in France

Germany1 site
  • Johannes Gutenberg Universität

    Kinderklinik, Mainz

Other trials in Germany

Netherlands1 site
  • Sophia Children's Hospital

    Rotterdam

Other trials in Netherlands

United Kingdom1 site
  • Willink Biochemical Genetics Unit Royal Hospital for Children

    Manchester

Other trials in United Kingdom

About this study

Official title: A Phase II Open-Label Clinical Trial of Recombinant Human Alpha-L-iduronidase (Aldurazyme®) to Evaluate the Safety and Pharmacokinetics in Mucopolysaccharidosis I (MPS I) Patients Less Than 5 Years Old

The main objectives of this study are to evaluate the safety and pharmacokinetics (PK) of enzyme replacement therapy with recombinant human alpha-L-iduronidase [Aldurazyme® (laronidase)] in mucopolysaccharidosis I (MPS I) patients less than 5 years old. Efficacy measurements will also be evaluated in this study.

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

    100 U/kg every week

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

    200 U/kg every week (Week 26 onwards)

Study groups in NCT00146757
Study groupRoleWhat they receive
Aldurazyme (rhIDU) 100 U/kg ONLY every weekExperimentalPatients received Aldurazyme (recombinant human alpha-L-iduronidase (rhIDU)) once per week at a dose of 100 Units/kg (approximately 0.58 mg/kg) for up to 52 weeks - labeled dose.
Receives: Biological: Aldurazyme (Recombinant Human Alpha-L-Iduronidase)
Aldurazyme (rhIDU) 100-200 U/kg every weekExperimentalAfter receiving 100 Units/kg dose of Aldurazyme (rhIDU) for the first 25 weeks, patients enrolling after January 1, 2004 were eligible to receive an increased dose of 200 Units/kg from Week 26 onwards if the patient's urinary glycosaminoglycan (uGAG) levels were >200µg/mg creatinine at Week 22.
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. Safety Evaluation

    Overall Safety Summary of Adverse Events (AEs) during Treatment Safety assessment was based on the incidence of AE reports.

    Measured: 52 weeks

  2. Pharmacokinetics - Area Under the (Plasma Concentration-time) Curve (AUC∞)

    AUC∞ is a measure of the total exposure to a drug.

    Measured: 52 weeks

  3. Pharmacokinetics - Elimination Half Life (t1/2)

    Half-life is the time it takes for the concentration of drug in plasma to decline by 50%.

    Measured: 52 weeks

  4. Pharmacokinetics - Total Plasma Clearance (CL)

    CL is volume of the body fluid cleared of the drug per unit of time.

    Measured: 52 weeks

  5. Pharmacokinetics - Volume of Distribution (Vz)

    Vz is the volume that relates the amount of drug in the body after absorption is complete to the concentration of drug in the plasma.

    Measured: 52 weeks

Timeline

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

  1. First posted7 Sep 2005 (estimated)
  2. Study startOct 2002
  3. Primary completionMay 2005
  4. Study completionMay 2005

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 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00146757
Sponsor's protocol ID
ALID-014-02
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 2 study testing Aldurazyme (Recombinant Human Alpha-L-Iduronidase) in people with Mucopolysaccharidosis I and Hurler Syndrome, run by Genzyme, a Sanofi Company at 4 sites in 4 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 5 inclusion and 5 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 4 sites in France, Germany, Netherlands, United Kingdom. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

Safety Evaluation (time frame: 52 weeks). The study lists 5 primary outcomes in all. 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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