Collection and Study of Cerebrospinal Fluid in Patients With Hunter Syndrome

May 24, 2021 updated by: Shire

A Cerebrospinal Fluid Collection Study in Pediatric and Adult Patients With Hunter Syndrome

The purpose of the study is to collect data on CSF biomarkers in patients with Hunter Syndrome that would serve as reference data for comparison with cognitively impaired patients with Hunter syndrome, patients with other lysosomal storage diseases, or other diseases with CNS involvement.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

To determine levels of glycosaminoglycans (GAGs), including dermatan sulfate (DS) and heparan sulfate (HS), GAG-degradation products, and other biomarkers of central nervous system (CNS) and lysosomal function in cerebrospinal fluid (CSF) in pediatric and adult patients with Hunter syndrome.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Manchester, United Kingdom, M13 9WL
        • Central Manchester University Hospitals NHS Foundation Trust, St. Mary's Hospital
      • Salford, United Kingdom, M6 8HD
        • Salford Royal NHS Foundation Trust
  • United States
    • Georgia
      • Decatur, Georgia, United States, 30033
        • Emory University
    • Illinois
      • Chicago, Illinois, United States, 60611-2605
        • Ann & Robert H. Lurie Children's Hospital of Chicago
    • Minnesota
      • Minneapolis, Minnesota, United States, 55404
        • Children's Hospitals and Clinics of Minnesota
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • University of North Carolina, Division of Genetics and Metabolism
    • Utah
      • Salt Lake City, Utah, United States, 84113
        • University of Utah School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 70 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Sampling Method

Non-Probability Sample

Study Population

The study population will consist of pediatric (<18 years of age) and adult (≥18 years of age) male patients with Hunter syndrome. Up to approximately 60 patients (approximately 30 adults and 30 children) may be enrolled in this study.

Description

Inclusion Criteria:

  • The patient is male and has a documented diagnosis of Hunter syndrome (MPSII).
  • The adult patient has completed a cognitive assessment at screening/baseline or within the previous 3 months and has been determined to have an intelligence quotient (IQ) ≥78. Note: cognitive evaluation of pediatric patients is not required.
  • The adult patient or the adult patient's legally authorized representative(s) has voluntarily signed an Institutional Review Board/Independent Ethics Committee-approved informed consent form after all relevant aspects of the study have been explained and discussed.
  • The pediatric patient must be scheduled to undergo a non-study related lumbar puncture or other medical or diagnostic procedure that requires the administration of general anesthesia. The pediatric patient's parent(s) or legally authorized representative(s) must have provided written informed consent (with patient assent as relevant), after all relevant aspects of the study have been explained and discussed, to allow CSF sample collection for this study in conjunction with performance of the non-study related procedure requiring general anesthesia.

Exclusion Criteria:

  • The patient has a history of complications from a previous lumbar puncture(s) or technical challenges in conducting lumbar puncture.
  • The patient has received a hematopoietic stem cell transplant.
  • The patient has taken aspirin, non-steroidal anti-inflammatory drugs (NSAIDs), or other over-the-counter or prescription medications that could affect blood clot formation within the 7 days prior to lumbar puncture, or has ingested such medications within 7 days prior to any study-related procedure in which a change in potential blood clot formation would be deleterious.
  • The patient is currently receiving treatment with intrathecal idursulfase-IT.
  • The patient is currently enrolled in an interventional clinical trial.
  • The patient has participated in a clinical trial of any investigational drug, including idursulfase-IT, or device within the 30 days prior to study entry.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
No treatment
Approximately 5 adults (equal to or not less than 18yrs old) and 5 children (equal to or not over 18yrs old)
Other: No treatment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Levels of Total Glycosaminoglycan (GAG) in CSF
Time Frame: Day 1
The concentration of total GAG, including heparan sulfate (HS) and dermatan sulfate (DS) oligosaccharides, in CSF was measured using an enzymatic assay.
Day 1

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Levels of GAG in Urine
Time Frame: Day 1
The levels of GAG (including sulfated DS/HS oligosaccharides) in urine were determined by the Blyscan sulfated GAG assay kit. The concentration of GAG in urine was normalized to the urine creatinine value and reported as mg GAG/mmol creatinine.
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Shire

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 12, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 20, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 20, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 6, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 7, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 10, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 9, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 24, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HGT-HIT-072

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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