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A Global, Multicenter Study to Assess Maternal, Fetal and Infant Outcomes of Exposure to Palynziq® (Pegvaliase) During Pregnancy and Breastfeeding

A Global, Multicenter Study to Assess Maternal, Fetal and Infant Outcomes of Exposure to Palynziq® (Pegvaliase) During Pregnancy and Breastfeeding

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05579548
Acronym
PALomino
Enrollment
50
Registered
2022-10-14
Start date
2022-11-22
Completion date
2032-10-04
Last updated
2026-03-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Phenylketonuria, Maternal

Keywords

Phase 4, Observational, Maternal, Pregnancy Outcomes, Exposure, Breastfeeding Outcomes

Brief summary

This is a Phase 4 observational study designed to assess the impact of Palynziq ® (pegvaliase) treatment in pregnant women with PKU and on their offspring who were exposed to pegvaliase at any time during pregnancy and breastfeeding.

Detailed description

Women prescribed pegvaliase by their healthcare provider (HCP) who become pregnant during treatment may decide to participate in the study and enroll via a centralized call center model. Upon consent, data will be collected from the patient's HCP(s) retrospectively for at least 3 months prior to Last Menstrual Period (LMP). Data will be collected during pregnancy and throughout the infant's first year of life. Pegvaliase exposure will be recorded during pregnancy and breastfeeding including exposure during each trimester of pregnancy. Duration of individual subject participation will be up to approximately 21 months.

Interventions

Pregnant women exposed to pegvaliase within 2 weeks prior to LMP.

Sponsors

BioMarin Pharmaceutical
Lead SponsorINDUSTRY
Syneos Health
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE

Inclusion criteria

* Subject (or a legally authorized representative) consent obtained prior to enrollment. Consent will be obtained in compliance with any country-specific regulations or requirements * Confirmation of ongoing pregnancy. Subjects with unknown outcomes will be classified as prospective pregnancies; subjects who have undergone prenatal testing (eg, targeted ultrasound, amniocentesis) regardless of findings will be classified as retrospective pregnancies * Diagnosed with PKU per local standard of care * Documentation that the subject was treated with pegvaliase at any point starting from 2 weeks prior to the date of LMP * Agrees to permit the Investigator (ie, CRP, CCA, PI) to contact the subject's HCPs (eg, PCP, PKU-treating physician, OB, nurse, midwife) and the infant's HCP (eg, pediatrician, neonatologist) for medical information

Exclusion criteria

• Currently participating in a BioMarin sponsored interventional study of any investigational product, device, or procedure

Design outcomes

Primary

MeasureTime frameDescription
Pregnancy outcome and infant development for women who have been treated with Palynziq (pegvaliase) within 2 weeks of their last menstrual period10 yearsTo estimate the frequency of pregnancy outcomes (eg, spontaneous abortion, stillbirth, live birth, and termination) among subjects with PKU treated with pegvaliase during pregnancy and fetal/infant outcomes (all major congenital malformations \[MCMs\] and specifically microcephaly and congenital heart defects\], FGR, small for gestational age \[SGA\], low birth weight, preterm birth, failure to thrive, and developmental delays) among their offspring exposed to pegvaliase during pregnancy.

Secondary

MeasureTime frameDescription
Pregnancy Outcomes10 yearsTo compare the frequency of pregnancy outcomes (eg, spontaneous abortion, stillbirth, live birth, and termination) and fetal/infant outcomes (all MCMs and specifically microcephaly and congenital heart defects, FGR, SGA, low birth weight, preterm birth, failure to thrive, and developmental delays) among subjects with PKU treated with pegvaliase during pregnancy and their offspring to information on those same outcomes in non-pegvaliase exposed, pregnant women with PKU as described in reference literature
Serious Adverse Events10 yearsTo estimate the frequency of serious adverse events (SAEs) other than CMs in infants exposed to pegvaliase during pregnancy through their first year of life
Maternal Pegvaliase use during breastfeeding10 yearsTo estimate the frequency of selected outcomes in subjects with PKU treated with pegvaliase during breastfeeding (low milk supply) and their infants (failure to thrive and SAEs) through their first year of life

Countries

Canada, Germany, Italy, United States

Contacts

CONTACT165-504 Program Director
medinfo@bmrn.com1-800-983-4587
STUDY_DIRECTORMedical Director, MD

BioMarin Pharmaceutical

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026