A Long Term, Post-marketing Study of Immune Response in Patients Receiving Palynziq Treatment for PKU (PALisade)
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Pegvaliase.
- Who it may be relevant to
- Registry conditions: Phenylketonuria (PKU). Basic parameters: No limits · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
A Multi-Center, Prospective, Longitudinal, Study Evaluating Immunologic, Inflammatory, and Laboratory Parameters Associated With Long-Term Palynziq® (Pegvaliase) Treatment in Subjects With Phenylketonuria (PKU) in the United States
Overview
This is a 10-year multi-center, prospective, longitudinal, single arm study evaluating immunologic, inflammatory and laboratory parameters associated with long-term Palynziq treatment in subjects with phenylketonuria (PKU) in the United States (US). Subjects in the US for whom a clinical decision has been made that they will receive pegvaliase to treat their PKU within 30 days following the date of enrollment in Study 165-501 (incident-users) or who have previously started treatment with pegvaliase at the date of enrollment in Study 165-501 (prevalent-users) are eligible for participation in Study 165-503.
Detailed description
This is a 10-year multi-center, prospective, longitudinal, single arm study evaluating immunologic, inflammatory and laboratory parameters associated with long-term Palynziq treatment in subjects with phenylketonuria (PKU) in the United States (US). Subjects in the US for whom a clinical decision has been made that they will receive pegvaliase to treat their PKU within 30 days following the date of enrollment in Study 165-501 (incident-users) or who have previously started treatment with pegvaliase at the date of enrollment in Study 165-501 (prevalent-users) are eligible for participation in Study 165-503. Subjects participating in the 165-501 study who consent to participate in this study (165-503) will be requested to provide pre-dose blood samples for Phe, immunologic and inflammatory marker testing approximately every 3 months for the first 3 years of participation, then every 6 months for the remainder of the study. Subjects will be requested to provide additional pre-dose blood samples at the time of Study 165-501 -protocol defined safety events. Additional pre-dose samples will be drawn as per standard of care as detailed in protocol 165-501. The blood Phe, immunologic (PAL IgG, PEG IgG, PEG IgM, anti-pegvaliase IgE), and inflammatory (C3/C4, hsCRP) markers, will be sent to a central laboratory for processing. Data collected in the 165-501 study will be combined with the data collected in this study to decrease burden on sites for data entry and to avoid duplication of ADR reporting (see Criteria for Evaluation). The combined data will be reported in the Clinical Study Report for this study. Subjects can withdraw from Study 165-503 and remain on Study 165-501, but they cannot withdraw from Study 165-501 and remain on Study 165-503 as safety events and other data-points are collected in Study 165-501.
Interventions
- Drug Pegvaliase
Must be enrolled in the 165-501 PALace study. Subjects currently receiving or who plan to receive pegvaliase treatment within 30 days after the date of enrollment in the 165-501 study, including subjects who previously received pegvaliase as part of the clinical development program and have completed study participation
Primary outcome measures
- To evaluate immunologic and inflammatory responses associated with occurrences of [Time frame: A maximum of 10 years treatment duration.]
Secondary outcome measures (2)
- Evaluation of immunologic and/or inflammatory responses over time [Time frame: A maximum of 10 years treatment duration.]
- Evaluation of immunologic responses over time [Time frame: A maximum of 10 years treatment duration.]
Eligibility criteria
Inclusion criteria
- Subjects enrolled at US sites participating in the 165-501 study.
Exclusion criteria
- Legal incapacity or limited legal capacity without legal guardian representation.
- Subject is unable or unwilling to provide informed consent for the additional interventional burden of the study (blood sampling).
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
United States · 11 centers
- University of Colorado — Aurora
- Emory University — Atlanta
- Northwestern University — Chicago
- Riley Children's Hospital/ Indiana University Health — Indianapolis
- Tulane University School of Medicine — New Orleans
- Boston Children's Hospital — Boston
- Oregon Health & Science University — Portland
- University of Pittsburgh Medical Center — Pittsburgh
- … and 3 more centers
Identifiers
NCT: NCT06305234 · 165-503