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Hurler SyndromePhase 1NCT01173016

Administration of IV Laronidase Post Bone Marrow Transplant in Hurler

A Phase 1 study testing Laronidase in people with Hurler Syndrome, run by Masonic Cancer Center, University of Minnesota at 1 site in United States.

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

This is a single center pilot study in which Laronidase will be given weekly for two years in patients with Hurler syndrome, also known as mucopolysaccharide IH (MPS I, Hurler syndrome), that have previously been treated with an allogeneic transplant. Read more about this study

Who is it for?
Ages Up to 14 years
Conditions the study is for
Hurler Syndrome
What is being tested?
Laronidase
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited States
Study dates
29 May 2012to 4 Mar 2016
Phase
Phase 1
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 14 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Mucopolysaccharidosis type IH (MPS I, Hurler syndrome) treated with a prior allogeneic transplant >2 years previously
  • Age <14 years old
  • >10% engrafted based on recent testing (<4 months prior to enrollment)
  • Willing to commit to traveling to the University of Minnesota every 6 months
  • Written informed consent prior to the performance of any study related procedures

Who cannot join

  • Previous administration of Laronidase enzyme > 3 months post transplantation
  • Anticipated survival less than 2 years
  • History of cardiac or pulmonary insufficiency, including an ejection fraction (EF) < 40% or those requiring continuous supplemental oxygen

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Masonic Cancer Center, University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Pilot Study of Administration of Intravenous Laronidase Following Allogeneic Transplantation for Hurler Syndrome

This is a single center pilot study in which Laronidase will be given weekly for two years in patients with Hurler syndrome, also known as mucopolysaccharide IH (MPS I, Hurler syndrome), that have previously been treated with an allogeneic transplant.

Read the detailed description

This 2-year open-label pilot study of laronidase includes patients (age 5-13 years) who are at least 2 years post-hematopoietic cell transplantation (HCT) and donor engrafted. Outcomes are assessed semi-annually and compared to historic controls. Eligible patients will receive Laronidase as an infusion over several hours once a week at a local site. The dosing of enzyme will be the standard doses recommended by Genzyme.

The findings of this Pilot Study will be used to assess whether a subsequent larger study can be conducted.

Conditions
Hurler Syndrome
Being tested
Laronidase
Keywords
mucopolysaccharide IH (MPS IH)
Medical subject headings
Mucopolysaccharidosis I

What participants receive

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

  • LaronidaseDrug

    Also called Aldurazyme

    Laronidase 0.58 mg/kg intravenously (IV) once a week for a maximum of 2 years

Study groups in NCT01173016
Study groupRoleWhat they receive
Laronidase After TransplantationExperimentalPatients with Mucopolysaccharidosis type IH (MPS I, Hurler syndrome) treated with a prior allogeneic transplant >2 years previously and treated with Laronidase weekly for 2 years after transplant.
Receives: Drug: Laronidase

What is being measured

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

  1. Percentage of Adherence to the Scheduled Weekly Infusion by the Participants

    To determine the feasibility of giving weekly Laronidase for 2 years in patients with Hurler syndrome after allogeneic transplantation, compliance throughout the study with drug administration, the percentage of adherence to the scheduled weekly infusion for each participant is measured.

    Measured: 24 months

  2. Number of Participants Experiencing Severe Adverse Events

    Number of participants experiencing severe adverse events that occur after administration with Laronidase to determine the feasibility of giving weekly Laronidase

    Measured: 24 months

Secondary outcomes (7)
  1. Changes in Growth Velocity

    difference between baseline and month 24 growth velocities

    Measured: Baseline, Month 24

  2. Change in Muscle Strength

    Handgrip strength is measured three times in both hands with a mechanical handheld Biodex System 3 dynamometer (Biodex medical Systems, Inc., Shirley, NY) with the subject in a seated position at each visit; the average for each hand is presented.

    Measured: Assessed from baseline every 6 months through 2 years; change between baseline and 24 months reported.If baseline and/or 24-month data were not available, the longest interval between measurements was reported, with a minimum requirement of 12 months

  3. Change in Peak Heart Rate to Monitor "Fitness"

    A modified Balke Treadmill Test was performed. Briefly, patients began walking at 2.0 mph with a 2% increase in grade every 2 min. A 12-lead electrocardiogram was monitored continuously throughout the test for the determination of heart rate and dysrhythmias or ischemic changes. Heart rate was measured at the end of each stage (i.e. every 2 min) .

    Measured: Assessed from baseline every 6 months through 2 years; change between baseline and 24 months reported.If baseline and/or 24-month data were not available, the longest interval between measurements was reported, with a minimum requirement of 12 months

  4. Number of Participants Showing Improvements in Joint Range of Motion (ROM)

    Bilateral shoulder flexion, elbow extension, and hip extension were measured using goniometry. Improvements are defined for all joints as >5°.

    Measured: Assessed from baseline every 6 months through 2 years; change between baseline and 24 months reported.If baseline and/or 24-month data were not available, the longest interval between measurements was reported, with a minimum requirement of 12 months

  5. Shortening Fraction to Determine Systolic Cardiac Function

    Cardiac ultrasounds were obtained at baseline and month 24. Two-dimensional imaging was obtained for determination of anatomy. Shortening fraction (SF [normal > 27%]) was calculated by standard methods to determine the normal systolic cardiac function

    Measured: Baseline and month 24

  6. Number of Participants With Changes in Cardiac Echo Structural Parameters

    Pulse-wave and color Doppler interrogation of cardiac valves was performed for determination of valve regurgitation

    Measured: Baseline and month 24

  7. Correlation of 6 Minute Walk Test With Anti-laronidase Antibody + Status

    6 minute walk test (6MWT) was performed to assess overall physical function and health status. In brief, a 30m hospital corridor marked by colored tape at each end was used. Subjects were instructed to walk from end to end at their self-selected pace, while attempting to cover as much distance as possible in the 6 min. The patients were instructed to walk around the mark as they changed direction. The time and distance covered was recorded, as was the heart rate prior to and immediately after completion of the walk test.

    To find the association between the rate of change in 6MWT, and anti drug antibody (ADA) titer, a statistical test is performed adjusting for age at the time of enrollment.

    Measured: Assessed from baseline every 6 months through 2 years; change between baseline and 24 months reported.If baseline and/or 24-month data were not available, the longest interval between measurements was reported, with a minimum requirement of 12 months

Timeline

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

  1. First posted30 Jul 2010 (estimated)
  2. Study start29 May 2012
  3. Primary completion4 Mar 2016
  4. Study completion4 Mar 2016

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01173016
Sponsor's protocol ID
2009LS090
Other IDs
MT2009-20, 1004M80513
Status last verified
Mar 2020
First submitted
28 Jul 2010
Last updated
20 Mar 2020
Data monitoring committee
Yes

Publications

  • Lund TC, Miller WP, Liao AY, Tolar J, Shanley R, Pasquali M, Sando N, Bigger BW, Polgreen LE, Orchard PJ. Post-transplant laronidase augmentation for children with Hurler syndrome: biochemical outcomes. Sci Rep. 2019 Oct 1;9(1):14105. doi: 10.1038/s41598-019-50595-1.

    PubMed 31575939

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Laronidase in people with Hurler Syndrome, run by Masonic Cancer Center, University of Minnesota at 1 site in United States.

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 3 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 20 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 20 Mar 2020). 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?

Percentage of Adherence to the Scheduled Weekly Infusion by the Participants (time frame: 24 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01173016, which also lists 1 linked publication.

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 20 Mar 2020.

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