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Alpha MannosidosisPhase 1NCT01268358

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

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

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, open-label, dose escalation study of patients with alpha-mannosidosis. 10 patients will be enrolled in this study receiving intravenous infusions of Lamazym. Read more about this study

Who is it for?
Ages 5 to 20 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
No sites listed yet
Study dates
Oct 2010to Jan 2011
Phase
Phase 1
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 20 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 ≤ 20 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

About this study

Official title: A Single Center, Open-label, Dose Escalation Study of the Safety and Pharmacokinetics of rhLAMAN (Recombinant Human Alpha-mannosidase or Lamazym) for the Treatment of Patients With Alpha-mannosidosis.

This is a single-center, open-label, dose escalation study of patients with alpha-mannosidosis. 10 patients will be enrolled in this study receiving intravenous infusions of Lamazym. In order to avoid development of delayed hypersensitivity all patients will continue weekly treatment at the designated dose until the Safety Committee approves transfer to the rhLAMAN-03 protocol.

It is the hypothesis that Lamazym is safe to use.

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

    Lamazym, ERT, infusion weekly

Study groups in NCT01268358
Study groupRoleWhat they receive
Lamazym 6.25ExperimentalNot described
Receives: Drug: Lamazym
Lamazym 12.5ExperimentalNot described
Receives: Drug: Lamazym
Lamazym 25ExperimentalNot described
Receives: Drug: Lamazym
Lamazym 50ExperimentalNot described
Receives: Drug: Lamazym
Lamazym 100ExperimentalNot described
Receives: Drug: Lamazym

What is being measured

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

  1. To evaluate the safety profile of rhLAMAN (Lamazym)

    Measured: 1-5 weeks

Secondary outcomes (2)
  1. To determine the PK profile of rhLAMAN (Lamazym) in patients with alpha-mannosidosis as measured by rhLAMAN levels in plasma

    Measured: 1 dosis

  2. To collect baseline measurements that are to be used for efficacy evaluation in the following trial (rhLAMAN-03)

    Measured: 1 week

Timeline

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

  1. First posted30 Dec 2010 (estimated)
  2. Study startOct 2010
  3. Primary completionJan 2011
  4. Study completionJan 2011

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01268358
Sponsor's protocol ID
rhLAMAN-02
Other IDs
2010-022084-36
Status last verified
Jul 2020
First submitted
29 Dec 2010
Last updated
3 Aug 2020
Results posted
No
Data monitoring committee
Yes

Publications

  • Borgwardt L, Thuesen AM, Olsen KJ, Fogh J, Dali CI, Lund AM. Cognitive profile and activities of daily living: 35 patients with alpha-mannosidosis. J Inherit Metab Dis. 2015 Nov;38(6):1119-27. doi: 10.1007/s10545-015-9862-4. Epub 2015 May 28.

    PubMed 26016802
  • Borgwardt L, Dali CI, Fogh J, Mansson JE, Olsen KJ, Beck HC, Nielsen KG, Nielsen LH, Olsen SO, Riise Stensland HM, Nilssen O, Wibrand F, Thuesen AM, Pearl T, Haugsted U, Saftig P, Blanz J, Jones SA, Tylki-Szymanska A, Guffon-Fouiloux N, Beck M, Lund AM. Enzyme replacement therapy for alpha-mannosidosis: 12 months follow-up of a single centre, randomised, multiple dose study. J Inherit Metab Dis. 2013 Nov;36(6):1015-24. doi: 10.1007/s10545-013-9595-1. Epub 2013 Mar 14.

    PubMed 23494656
  • Borgwardt L, Stensland HM, Olsen KJ, Wibrand F, Klenow HB, Beck M, Amraoui Y, Arash L, Fogh J, Nilssen O, Dali CI, Lund AM. Alpha-mannosidosis: correlation between phenotype, genotype and mutant MAN2B1 subcellular localisation. Orphanet J Rare Dis. 2015 Jun 6;10:70. doi: 10.1186/s13023-015-0286-x.

    PubMed 26048034

Questions about this trial

What is this clinical trial studying?

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

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: finished, as of the sponsor's last update on 3 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

To evaluate the safety profile of rhLAMAN (Lamazym) (time frame: 1-5 weeks). 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 NCT01268358, which also lists 3 linked publications.

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 Aug 2020.

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