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Alpha MannosidosisPhase 2NCT01285700

Dose Finding Study of Recombinant Human Alpha-mannosidase for the Treatment of Patients With Alpha-mannosidosis

A Phase 2 study testing Lamazym in people with Alpha Mannosidosis, run by Zymenex A/S at 1 site in Denmark.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is a single-center, open-label, multiple-dose study of the efficacy and long-term safety of Lamazym for the treatment of patients with alpha-mannosidosis. Read more about this study

Who is it for?
Ages 5 to 21 years
Conditions the study is for
Alpha Mannosidosis
What is being tested?
Lamazym
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteDenmark
Study dates
Jan 2011to Nov 2012
Phase
Phase 2
Are there results?
None posted in the registry

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 5 to 21 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • The patient must have a confirmed diagnosis of alpha-Mannosidosis as defined by alpha-mannosidase activity < 10% of normal activity in blood leukocytes
  • The patient must have an age at the time of screening ≥ 5 year and ≤ 21 years
  • The patient must have physical ability to perform 6-minutes walk test (6MWT), 3 minute-stair climb test (3MSCT) and pulmonary lung function test (spirometry, body plethysmography).
  • The patient must have the ability to mentally cooperate in the cognitive and motor function tests
  • The patient must have the ability to hear and follow a request. Hearing aids can be worn.
  • Patient or patient's legally authorized guardian(s) must provide signed, informed consent prior to performing any study-related activities (trial-related activities are any procedures that would not have been performed during normal management of the subject)
  • The patient and his/her guardian(s) must have the ability to comply with the protocol

Who cannot join

  • The patient cannot walk without support.
  • Presence of known chromosomal abnormality and syndromes affecting psychomotor development, other than alpha-Mannosidosis
  • History of bone marrow transplantation
  • Presence of known clinically significant cardiovascular, hepatic, pulmonary or renal disease or other medical conditions that, in the opinion of the Investigator, would preclude participation in the trial
  • Presence of an ECHO with abnormalities within half a year that, in the opinion of the Investigator, would preclude participation in the trial
  • Any other medical condition or serious intercurrent illness, or extenuating circumstance that, in the opinion of the investigator, would preclude participation in the trial
  • Pregnancy
  • Psychosis within the last 3 months

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department of Clinical Genetics, Juliane Marie Centre, Copenhagen University Hospital, Blegdamsvej 9

    Copenhagen, 2100

Other trials in Denmark

About this study

Official title: A Single Center, Randomized, Open-label, Multiple-dose Study of the Efficacy and Long-term Safety of rhLAMAN (Recombinant Human Alpha-mannosidase or Lamazym) for the Treatment of Patients With Alpha-mannosidosis.

This is a single-center, open-label, multiple-dose study of the efficacy and long-term safety of Lamazym for the treatment of patients with alpha-mannosidosis.

Being tested
Lamazym
Medical subject headings
alpha-Mannosidosis

What participants receive

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

  • LamazymDrug

    Also called rhLAMAN

    ERT, infusion weekly

Study groups in NCT01285700
Study groupRoleWhat they receive
Lamazym 25Active comparator25 U/kg
Receives: Drug: Lamazym
Lamazym 50Active comparator50 U/kg
Receives: Drug: Lamazym

What is being measured

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

  1. Reduction of Oligosaccharides in urine

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

Secondary outcomes (9)
  1. Reduction of Oligosaccharides in serum

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

  2. Reduction of Oligosaccharides in CSF

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

  3. The distance walked in 6 minutes

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

  4. The number of steps climbed in 3 minutes

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

  5. Pulmonary Function

    Efficacy endpoint evaluation as change from baseline

    Measured: 3 months (interim evaluation) + 6 months

  6. Adverse events

    Safety endpoint assessed weekly throughout the trial

    Measured: 1 week

  7. Development of clinically significant changes in vital signs and change in physical examination

    Safety endpoint assessed weekly throughout the trial

    Measured: 1 week

  8. Development of clinically significant changes in the clinical laboratory parameters (hematology, biochemistry and urinalysis)

    Safety endpoint assessed every 4th week throughout the trial

    Measured: 4 weeks

  9. Development of rhLAMAN antibodies and neutralizing/inhibitory antibodies

    Safety endpoint assessed every other week throughout the trial

    Measured: 2 weeks

Timeline

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

  1. First posted28 Jan 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionJan 2012
  4. Study completionNov 2012 (estimated)

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01285700
Sponsor's protocol ID
rhLAMAN-03
Other IDs
2010-022085-26
Status last verified
Sep 2012
First submitted
25 Jan 2011
Last updated
26 Sep 2012
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Lamazym in people with Alpha Mannosidosis, run by Zymenex A/S at 1 site in Denmark.

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 7 inclusion and 8 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: status not confirmed, as of the sponsor's last update on 26 Sep 2012. 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 Denmark. 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?

Results are not available in the source record.

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?

Reduction of Oligosaccharides in urine (time frame: 3 months (interim evaluation) + 6 months). 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 26 Sep 2012.

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