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Mucopolysaccharidosis IINCT01602601

A Study to Test the Possibility of Cross Reaction Induced by the Idursulfase Drug to GSK2788723

An observational study of Mucopolysaccharidosis II, run by GlaxoSmithKline at 1 site in Japan.

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

Study IDS116406 will be a non-interventional, phlebotomy study in Hunter Syndrome patients who are currently being treated with idursulfase, an enzyme replacement therapy, and in at least a single patient who is naïve to treatment, if possible to recruit. Read more about this study

Who is it for?
Any age
Conditions the study is for
Mucopolysaccharidosis II
What is being tested?
Idursulfase and GSK2788723
Type of treatment
Injection or infusion
How many people
10 participants
Where
1 siteJapan
Study dates
9 Apr 2012to 11 Jun 2012
Phase
Observational
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Approximately 11 subjects will be enrolled in the study.

Who may be able to join

  • A subject will be eligible for inclusion in this study only if patient meets criteria 1 and 2 or 1 and 3:
  • Diagnosed with Hunter syndrome
  • Patients with Hunter syndrome who are being treated with idursulfase
  • Patients with Hunter syndrome who are naïve of idursulfase treatment (if possible*) *This study will also attempt to recruit 1 patient who has never received idursulfase. If a naïve patient has not been identified within an agreed amount of time between GSK and the investigator, the study will concluded without this sample

Who cannot join

  • Subjects who are currently participating in another clinical trial are not permitted to be enrolled in this study.

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • GSK Investigational Site

    Tokyo, 157-8535

Other trials in Japan

About this study

Official title: A Study to Test the Possibility of Cross Reaction of the Antibodies Induced by the ELAPRASE (R) to GSK2788723 ELAPRASE is a Trade Mark Owned by a Third Party

Study IDS116406 will be a non-interventional, phlebotomy study in Hunter Syndrome patients who are currently being treated with idursulfase, an enzyme replacement therapy, and in at least a single patient who is naïve to treatment, if possible to recruit. All patients enrolled into the study will have a single blood draw for the analysis of antibodies induced by this enzyme replacement therapy (idursulfase). Patient samples with positive responses to antibodies induced by idursulfase will be used to further evaluate whether the antibodies induced by idursulfase bind to GSK2788723 molecules in vitro and if these antibodies neutralize the bioactivity of GSK2788723 in vitro. Each subject will have a screening visit, which may occur at their regularly scheduled out-patient visit. If the patient consents to participate in the study, a blood sample (total volume of approximately 3mL) for immunogenicity analysis will be drawn before their current treatment infusion

Read the detailed description

Study IDS116406 will be a non-interventional, phlebotomy study in Hunter Syndrome patients who are currently being treated with idursulfase, an enzyme replacement therapy, and in at least a single patient who is naïve to treatment, if possible to recruit. All patients enrolled into the study will have a single blood draw for the analysis of antibodies induced by this enzyme replacement therapy (idursulfase). Patient samples with positive responses to antibodies induced by idursulfase will be used to further evaluate whether the antibodies induced by idursulfase bind to GSK2788723 molecules in vitro and if these antibodies neutralize the bioactivity of GSK2788723 in vitro. Each subject will have a screening visit, which may occur at their regularly scheduled out-patient visit. If the patient consents to participate in the study, a blood sample (total volume of approximately 3mL) for immunogenicity analysis will be drawn before their current treatment infusion

Being tested
Idursulfase, GSK2788723
Keywords
Hunter syndrome, immunogenicity, antibodies
Medical subject headings
Mucopolysaccharidosis II

What participants receive

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

  • IdursulfaseDrug

    Also called recombinant IDS

    recombinant version of IDS produced from human fibroblast. idursulfase is approved for every week (EW) intravenous (IV) administration.

  • GSK2788723Drug

    GSK2788723 is being developed by JCR and GSK for the treatment of Hunter syndrome

Study groups in NCT01602601
Study groupRoleWhat they receive
Cohort 1Patients will have a single blood draw for the analysis of antibodies induced by idursulfase. Samples will be used to further evaluate whether the antibodies induced by idursulfase bind to GSK2788723 molecules in vitro and if these antibodies neutralize the bioactivity of GSK2788723 in vitro.
Receives: Drug: Idursulfase; Drug: GSK2788723

What is being measured

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

  1. Level and capability of binding and neutralizing antibodies induced by idursulfase after the administration of idursulfase

    To assess the cross-reactivity of the antibodies induced by idursulfase to GSK2788723, in vitro

    Measured: 1 Day

Timeline

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

  1. First posted21 May 2012 (estimated)
  2. Study start9 Apr 2012
  3. Primary completion11 Jun 2012
  4. Study completion11 Jun 2012

Resources

More details

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

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01602601
Sponsor's protocol ID
116406
Status last verified
Sep 2017
First submitted
17 May 2012
Last updated
25 Sep 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Mucopolysaccharidosis II, run by GlaxoSmithKline at 1 site in Japan.

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 1 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 25 Sep 2017. 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 Japan. 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.

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?

Level and capability of binding and neutralizing antibodies induced by idursulfase after the administration of idursulfase (time frame: 1 Day). 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 25 Sep 2017.

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