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Study to Evaluate the Safety and Efficacy of Pegvaliase in Adolescents (Ages 12-17) With Phenylketonuria

Phase 3
Active, not recruiting
Conditions
Phenylketonuria (PKU)
Interventions
Other: Diet Only
Registration Number
NCT05270837
Lead Sponsor
BioMarin Pharmaceutical
Brief Summary

This is a Phase 3 open-label randomized controlled study enrolling approximately 54 adolescents with PKU. The study is designed to assess the safety and efficacy of pegvaliase injections.

Detailed Description

This Phase 3 multicenter study is designed to evaluate the safety and efficacy of pegvaliase administered daily to adolescents (ages 12 to 17 years old (US), inclusive, and 12 to 15 years old (EU), inclusive 12-17) with phenylketonuria (PKU). Participants will be randomized in a 2:1 ratio to the active (pegvaliase) and control (diet-only) treatment arms, respectively, with 36 participants receiving pegvaliase and 18 participants managing their PKU with diet alone.

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
55
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Drug: Diet OnlyDiet OnlyParticipants will be managing their PKU with diet alone. Participants in the diet-only control arm will be required to maintain and adjust dietary and medical protein food intake through Week 72, initiating pegvaliase treatment beginning Week 73 and, from Weeks 73 through 215.
PegvaliasePegvaliase-
Primary Outcome Measures
NameTimeMethod
Change in blood Phe concentrationTreatment naïve baseline following 72 weeks on study
Incidence of treatment-emergent adverse events as assessed by CTCAE v5.0Treatment naïve baseline following 72 weeks on study
Secondary Outcome Measures
NameTimeMethod
Change in total dietary protein intakeTreatment naïve baseline following 72 weeks on study

Trial Locations

Locations (16)

Ann and Robert H. Lurie Children's Hospital of Chicago

🇺🇸

Chicago, Illinois, United States

University of Pittsburgh Medical Center

🇺🇸

Pittsburgh, Pennsylvania, United States

Phoenix Children's Hospital

🇺🇸

Phoenix, Arizona, United States

Arkansas Children's Hospital

🇺🇸

Little Rock, Arkansas, United States

University of South Florida

🇺🇸

Tampa, Florida, United States

Boston Children's Hospital

🇺🇸

Boston, Massachusetts, United States

University of Utah Medical Center

🇺🇸

Salt Lake City, Utah, United States

Children's Hospital of Wisconsin

🇺🇸

Milwaukee, Wisconsin, United States

Charité - Universitätsmedizin Berlin

🇩🇪

Berlin, Germany

McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth)

🇺🇸

Houston, Texas, United States

IU Health University Hospital

🇺🇸

Indianapolis, Indiana, United States

Children's Hospital of Colorado

🇺🇸

Aurora, Colorado, United States

University of Kentucky College of Medicine

🇺🇸

Lexington, Kentucky, United States

University of Virginia School of Medicine

🇺🇸

Charlottesville, Virginia, United States

Universitat Mainz

🇩🇪

Mainz, Germany

Universitätsklinikum Hamburg-Eppendorf

🇩🇪

Hamburg, Germany

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