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Extension Study of Idursulfase-IT Along With Elaprase in Children and Adults With Hunter Syndrome and Cognitive Impairment

Primary Purpose

Hunter Syndrome

Status
Not yet recruiting
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
Idursulfase-IT
Elaprase
Sponsored by
Takeda
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hunter Syndrome focused on measuring Drug Therapy

Eligibility Criteria

3 Years - 19 Years (Child, Adult)MaleDoes not accept healthy volunteers

Inclusion Criteria: The participant must have completed end of study assessments in studies HGT-HIT-046 [NCT01506141] or SHP609-302 [NCT02412787] and received a clinical benefit from idursulfase-IT in the opinion of the investigator. The participant, or participant's legally designated representative, must have been informed of the nature of this open-label extension and must have voluntarily signed an Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved informed consent form after all relevant aspects of the study have been explained and discussed. Written consent of the participant's legally designated representative (if applicable) and the participant's consent/assent, as relevant, must be obtained. The participant has continued to receive elaprase on a regular basis in studies HGT-HIT-046 or SHP609-302. Exclusion Criteria: The participant has experienced, in the opinion of the investigator, a safety or medical issue that contraindicates treatment with idursulfase-IT, including, but not limited to, uncontrolled seizure disorder, bleeding disorder, and clinically relevant hypertension. The participant has clinically relevant intracranial hypertension. The participant is enrolled in another clinical study, other than studies HGT-HIT-046 or SHP609-302, that involves clinical investigations or use of any investigational product (drug or [intrathecal/spinal] device) within 30 days prior to study enrolment or at any time during the study.

Sites / Locations

  • M.A.G.I.C. Clinic LTD
  • University of British Columbia
  • The Hospital for Sick Children
  • Hospices Civils de Lyon

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Idursulfase-IT

Arm Description

Participants will receive idursulfase-IT once monthly and weekly IV infusions of elaprase at the dose used in previous studies (HGT-HIT-045/SHP609-302) via IDDD until benefit is no longer derived from the treatment, or treatment is no longer tolerable, or up to approximately 10.4 years.

Outcomes

Primary Outcome Measures

Number of Participants with Adverse Events (AEs) by Type and Severity
An adverse event (AE) means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. The severity of AEs will be determined per the investigator's assessment.
Number of Participants with AEs Related to Idursulfase-IT
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to idursulfase-IT will be reported in this outcome measure.
Number of Participants with AEs Related to the IDDD
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to the IDDD will be reported in this outcome measure.
Number of Participants with AEs Related to Device Surgical Procedure
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to device surgical procedure will be reported in this outcome measure.
Number of Participants with AEs Related to IT Administration Process
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to IT administration process will be reported in this outcome measure.
Number of Participants with AEs Related to IV Elaprase Infusion
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to IV elaprase infusion will be reported in this outcome measure.

Secondary Outcome Measures

Full Information

First Posted
September 4, 2023
Last Updated
September 27, 2023
Sponsor
Takeda
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1. Study Identification

Unique Protocol Identification Number
NCT06031259
Brief Title
Extension Study of Idursulfase-IT Along With Elaprase in Children and Adults With Hunter Syndrome and Cognitive Impairment
Official Title
An Open-Label Extension for Subjects in Studies HGT-HIT-046 and SHP609-302 Evaluating Long-Term Safety of Intrathecal Idursulfase-IT Administered in Conjunction With Intravenous Elaprase® in Subjects With Hunter Syndrome and Cognitive Impairment
Study Type
Interventional

2. Study Status

Record Verification Date
September 2023
Overall Recruitment Status
Not yet recruiting
Study Start Date
January 1, 2024 (Anticipated)
Primary Completion Date
January 1, 2034 (Anticipated)
Study Completion Date
June 1, 2034 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Takeda

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
Yes
Data Monitoring Committee
No

5. Study Description

Brief Summary
The study is an extension of two previous studies (HGT-HIT-046 [NCT01506141] and SHP609-302 [NCT02412787]). Participants must have completed one of the previous studies. The main aim of this study is to collect more information about the safety of the treatments, idursulfase-IT and elaprase, in children and adults with Hunter syndrome and cognitive impairment. Participants will receive the same treatment as in the previous studies.
Detailed Description
The drug being tested in this study is called idursulfase. Idursulfase is being tested for long term safety in participants with Hunter syndrome and cognitive impairment. The study will enroll up to approximately 8 patients. Participants will receive idursulfase-IT via intrathecal drug delivery device (IDDD) once monthly along with elaprase intravenous (IV) infusion, weekly. This multi-center trial will be conducted in France and Canada. The overall time to participate in this study is approximately 10.4 years.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hunter Syndrome
Keywords
Drug Therapy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2, Phase 3
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
8 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Idursulfase-IT
Arm Type
Experimental
Arm Description
Participants will receive idursulfase-IT once monthly and weekly IV infusions of elaprase at the dose used in previous studies (HGT-HIT-045/SHP609-302) via IDDD until benefit is no longer derived from the treatment, or treatment is no longer tolerable, or up to approximately 10.4 years.
Intervention Type
Drug
Intervention Name(s)
Idursulfase-IT
Intervention Description
Idursulfase-IT intrathecally via IDDD.
Intervention Type
Drug
Intervention Name(s)
Elaprase
Intervention Description
Elaprase IV infusion.
Primary Outcome Measure Information:
Title
Number of Participants with Adverse Events (AEs) by Type and Severity
Description
An adverse event (AE) means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. The severity of AEs will be determined per the investigator's assessment.
Time Frame
Up to approximately 10.4 years
Title
Number of Participants with AEs Related to Idursulfase-IT
Description
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to idursulfase-IT will be reported in this outcome measure.
Time Frame
Up to approximately 10.4 years
Title
Number of Participants with AEs Related to the IDDD
Description
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to the IDDD will be reported in this outcome measure.
Time Frame
Up to approximately 10.4 years
Title
Number of Participants with AEs Related to Device Surgical Procedure
Description
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to device surgical procedure will be reported in this outcome measure.
Time Frame
Up to approximately 10.4 years
Title
Number of Participants with AEs Related to IT Administration Process
Description
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to IT administration process will be reported in this outcome measure.
Time Frame
Up to approximately 10.4 years
Title
Number of Participants with AEs Related to IV Elaprase Infusion
Description
An AE means any untoward medical occurrence in a participant or participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. Any adverse event related to IV elaprase infusion will be reported in this outcome measure.
Time Frame
Up to approximately 10.4 years

10. Eligibility

Sex
Male
Gender Based
Yes
Minimum Age & Unit of Time
3 Years
Maximum Age & Unit of Time
19 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: The participant must have completed end of study assessments in studies HGT-HIT-046 [NCT01506141] or SHP609-302 [NCT02412787] and received a clinical benefit from idursulfase-IT in the opinion of the investigator. The participant, or participant's legally designated representative, must have been informed of the nature of this open-label extension and must have voluntarily signed an Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved informed consent form after all relevant aspects of the study have been explained and discussed. Written consent of the participant's legally designated representative (if applicable) and the participant's consent/assent, as relevant, must be obtained. The participant has continued to receive elaprase on a regular basis in studies HGT-HIT-046 or SHP609-302. Exclusion Criteria: The participant has experienced, in the opinion of the investigator, a safety or medical issue that contraindicates treatment with idursulfase-IT, including, but not limited to, uncontrolled seizure disorder, bleeding disorder, and clinically relevant hypertension. The participant has clinically relevant intracranial hypertension. The participant is enrolled in another clinical study, other than studies HGT-HIT-046 or SHP609-302, that involves clinical investigations or use of any investigational product (drug or [intrathecal/spinal] device) within 30 days prior to study enrolment or at any time during the study.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Takeda Contact
Phone
+1-877-825-3327
Email
medinfoUS@takeda.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Study Director
Organizational Affiliation
Takeda
Official's Role
Study Director
Facility Information:
Facility Name
M.A.G.I.C. Clinic LTD
City
Calgary
State/Province
Alberta
ZIP/Postal Code
T2E 7Z4
Country
Canada
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Site Contact
Phone
4039557587
Email
Aneal.khan@ahs.ca
First Name & Middle Initial & Last Name & Degree
Aneal Khan
Facility Name
University of British Columbia
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V6T1Z3
Country
Canada
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Site Contact
Phone
6048755905
Email
sstockler@cw.bc.ca
First Name & Middle Initial & Last Name & Degree
Sylvia Stockler
Facility Name
The Hospital for Sick Children
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M5G1X8
Country
Canada
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Site Contact
Phone
4168135753
Email
Michal.inbar-feigenberg@sickkids.ca
First Name & Middle Initial & Last Name & Degree
Michal Inbar- Feigenberg
Facility Name
Hospices Civils de Lyon
City
Lyon Cedex
ZIP/Postal Code
69229
Country
France
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Site Contact
Phone
+33472129537
Email
Nathalie.guffon-fouilhoux@chu-lyon.fr
First Name & Middle Initial & Last Name & Degree
Nathalie Guffon

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.
IPD Sharing Access Criteria
IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
IPD Sharing URL
https://vivli.org/ourmember/takeda/
Links:
URL
https://clinicaltrials.takeda.com/study-detail/5684362136074625?idFilter=%5B%22TAK-609-3001%22%5D
Description
To obtain more information on the study, click here on this link

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Extension Study of Idursulfase-IT Along With Elaprase in Children and Adults With Hunter Syndrome and Cognitive Impairment

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