Clinical trial • Phase III • Rare Disease

REBISUFLIGENE ETISPARVOVEC for Mucopolysaccharidosis type IIIA

Phase III trial of REBISUFLIGENE ETISPARVOVEC for Mucopolysaccharidosis type IIIA. open-label, none/not specified-controlled. 24 participants.

Overview

Trial Therapeutic Area
Rare Disease
Trial Disease
Mucopolysaccharidosis type IIIA
Trial Stage
Phase III
Drug Modality
Gene therapy
Paediatric Trial
Yes
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
01-02-2024
First CTIS Authorization Date
07-02-2024

Trial design

open-label, none/not specified-controlled Phase III trial across 3 sites in Spain.

Open Label
Yes
Comparator
None/Not specified
Target Sample Size
24

Eligibility

Recruits 24 paediatric patients.

Vulnerable Population
isVulnerablePopulationSelected: true. Informed consent is provided by parent(s)/legal guardian(s) as specified: "Parent(s)/legal guardian(s) of participant willing and able to complete the informed consent process and comply with study procedures and visit schedule." Assent handling is not specified in the available criteria.

Inclusion criteria

  • {"criterion_text":"- Participants that have participated in a prior clinical trial in which they received UX111\n- Parent(s)/legal guardian(s) of participant willing and able to complete the informed consent process and comply with study procedures and visit schedule."}

Exclusion criteria

  • {"criterion_text":"- Planned or current participation in another clinical trial that may confound the safety or efficacy evaluation of UX111 during this study\n- Any other situation or medical condition that precludes the participant from undergoing procedures required in this study."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Safety: Incidence of treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (SAEs)","definition_or_measurement_approach":"Incidence will be measured by recording and reporting treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (SAEs) as counted/reported during follow-up."}
  • {"endpoint_text":"- Efficacy: Bayley Scales of Infant and Toddler Development - Third Edition (BSITD-III) Cognitive raw score","definition_or_measurement_approach":"Measured using the Bayley Scales of Infant and Toddler Development - Third Edition (BSITD-III) Cognitive raw score."}

Secondary endpoints

  • {"endpoint_text":"- Cerebrospinal fluid (CSF) heparan sulfate (HS) (disaccharide) exposure","definition_or_measurement_approach":"Measured as CSF heparan sulfate (HS) (disaccharide) exposure in cerebrospinal fluid samples."}
  • {"endpoint_text":"- CSF HS percentage change from baseline in prior trial","definition_or_measurement_approach":"Calculated as percentage change in CSF heparan sulfate (HS) from baseline values recorded in the prior trial."}
  • {"endpoint_text":"- BSITD-III Receptive Communication raw score","definition_or_measurement_approach":"Measured using the Bayley Scales of Infant and Toddler Development - Third Edition (BSITD-III) Receptive Communication raw score."}
  • {"endpoint_text":"- BSITD-III Expressive Communication raw score","definition_or_measurement_approach":"Measured using the Bayley Scales of Infant and Toddler Development - Third Edition (BSITD-III) Expressive Communication raw score."}
  • {"endpoint_text":"- Total cortical volume (cm 3) annualized percentage change from baseline in prior trial","definition_or_measurement_approach":"Measured as total cortical volume (cm3) and reported as the annualized percentage change from baseline values in the prior trial."}
  • {"endpoint_text":"- Survival","definition_or_measurement_approach":"Measured as survival status/time during the follow-up period."}

Recruitment

Planned Sample Size
24
Recruitment Window Months
87
Consent Approach
Informed consent to be obtained from parent(s)/legal guardian(s) as specified: "Parent(s)/legal guardian(s) of participant willing and able to complete the informed consent process and comply with study procedures and visit schedule." Subject information and informed consent form documents are present (site-specific ICFs listed); languages and assent procedures are not specified in the available data.

Geography

Total Number Of Sites
3
Total Number Of Participants
24

Spain

Earliest CTIS Part Ii Submission Date
31-01-2024
Latest Decision Or Authorization Date
20-10-2025
Processing Time Days
629
Number Of Sites
3
Number Of Participants
24

Sites

Site Name
Hospital Universitari Vall D Hebron
Department Name
Pediatrics
Principal Investigator Name
Mireia del Toro Riera
Principal Investigator Email
mireia.deltoro@vallhebron.net
Contact Person Name
Mireia del Toro Riera
Contact Person Email
mireia.deltoro@vallhebron.net
Site Name
Complexo Hospitalario Universitario De Santiago
Department Name
Neurology
Principal Investigator Name
María Luz Couce Pico
Principal Investigator Email
Maria.Luz.Couce.Pico@sergas.es
Contact Person Name
María Luz Couce Pico
Contact Person Email
Maria.Luz.Couce.Pico@sergas.es
Site Name
Complexo Hospitalario Universitario De Santiago
Department Name
Pediatrics
Principal Investigator Name
Eines Monteagudo Vilavedra
Principal Investigator Email
eines.monteagudo.vilavedra@sergas.es
Contact Person Name
Eines Monteagudo Vilavedra

Sponsor

Primary sponsor

Full Name
Ultragenyx Pharmaceutical Inc.
Organisation Type
Pharmaceutical company
Country Of Registered Address
United States

Contract research organisations

Name
Pharmapace Inc.
Name
DF/Net Research
Name
Fortrea Inc.
Responsibilities
Home Health
Name
Primevigilance Limited
Responsibilities
Pharmacovigilance Services

Third parties

  • {"country":"United States","full_name":"Bioagilytix Labs LLC","duties_or_roles":"Anti-AAV9 ELISA, Anti-SGSH ELISA, NABs","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"Patient Primary","duties_or_roles":"Patient reimburment","organisation_type":"Industry"}
  • {"country":"Germany","full_name":"MARKEN Germany GmbH","duties_or_roles":"Collection/shipping of lab kits, shipment samples","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Pharmapace Inc.","duties_or_roles":"","organisation_type":"Pharmapace Inc."}
  • {"country":"Australia","full_name":"Sa Pathology","duties_or_roles":"","organisation_type":"Hospital/Clinic/Other health care facility"}
  • {"country":"United States","full_name":"Marken LLP","duties_or_roles":"Lab Sample Courier","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Pharmapace Inc.","duties_or_roles":"","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Fortrea Inc.","duties_or_roles":"Home Health","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Trulab","duties_or_roles":"Lab Sample Management","organisation_type":"Industry"}
  • {"country":"United States","full_name":"Quantims, LLC (Igor Nestrasil)","duties_or_roles":"Central MRI reader","organisation_type":"Industry"}
  • {"country":"United States","full_name":"EPL Archives, LLC","duties_or_roles":"Samples storage","organisation_type":"Health care"}
  • {"country":"United States","full_name":"Lumanity Patient Centered Outcomes LLC","duties_or_roles":"Qualitative Interviews","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United Kingdom","full_name":"Primevigilance Limited","duties_or_roles":"Pharmacovigilance Services","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Life Courier (fka Optimize Courier)","duties_or_roles":"Lab Sample Courier","organisation_type":"Industry"}
  • {"country":"United States","full_name":"DF/Net Research","duties_or_roles":"","organisation_type":"Industry"}

Investigational products

Investigational Product Name
ABO-102
Active Substance
REBISUFLIGENE ETISPARVOVEC
Modality
Gene therapy
Routes Of Administration
INTRAVENOUS USE
Route
Intravenous
Authorisation Status
1
Orphan Designation
Yes

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