Skip to content

Maternal and Postnatal Outcomes Study (MOS): A Global Observational Registry Assessing the Safety of Elfabrio® in Women With Fabry Disease and Their Infants During Pregnancy and Breastfeeding

Maternal and Postnatal Outcomes Study (MOS) A Worldwide Decentralized Observational Registry to Evaluate the Safety in Women With Fabry Disease and Their Infants Exposed to Elfabrio® (Pegunigalsidase Alfa-iwxj/Pegunigalsidase Alfa) During Pregnancy and/or Lactation

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06941025
Acronym
MOS
Enrollment
10
Registered
2025-04-23
Start date
2025-05-23
Completion date
2034-12-01
Last updated
2026-03-19

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

Conditions

Fabry Disease, Pregnancy, Pregnancy Complications

Brief summary

The goal of this observational registry is to evaluate the safety and outcomes of pregnancy and lactation in women with Fabry disease who are exposed to pegunigalsidase alfa within 30 days prior to conception and/or during pregnancy and lactation. The main objectives are to: * Assess pregnancy outcomes, including maternal and infant health. * Evaluate the occurrence of congenital malformations and other neonatal outcomes. This is a global, decentralized, single-arm, prospective and retrospective registry planned to enroll participants over a 10-year period. Eligible patients may be enrolled by their physician or may self-enroll, where permitted by local regulations. Data will be collected through a secure web-based platform, allowing patients and physicians to enter information via electronic case report forms (eCRFs). Pregnancy and clinical outcomes will be documented throughout pregnancy and up to 12 months post-birth. Data from self-enrolled patients will be confirmed by their primary care or attending physician. This registry is observational and does not impact clinical care or treatment decisions.

Detailed description

This is a global, decentralized, single-arm, prospective and retrospective observational registry designed to evaluate pregnancy and infant outcomes in women with Fabry disease who have been exposed to pegunigalsidase alfa within 30 days prior to conception and/or during pregnancy and lactation. The registry aims to assess maternal and infant safety, pregnancy outcomes, and the occurrence of congenital malformations and other neonatal conditions. The registry will enroll patients over a 10-year period. Eligible patients may be enrolled by their physician or may self-enroll, where permitted by local regulations. Data collection will be facilitated through a secure, centralized web-based platform, where patients and physicians can enter information using electronic case report forms (eCRFs). Enrollment & Data Collection: Patients can be enrolled at any time, either during pregnancy or after delivery. Depending on the timing of enrollment, data will be collected retrospectively and/or prospectively. Pregnancy and clinical outcomes will be monitored from enrollment until the infant reaches 12 months of age. Collected data includes maternal health, pregnancy complications, delivery outcomes, congenital malformations, and infant health parameters. Reported congenital malformations will be classified according to established criteria (e.g., MACDP, EUROCAT) and adjudicated by an independent Scientific Advisory Committee. The registry is observational and does not alter clinical care, physician treatment decisions, or patient management.

Interventions

OTHERNot applicable- observational study

Not applicable - observational study

Sponsors

Chiesi Farmaceutici S.p.A.
Lead SponsorINDUSTRY
ICON plc
CollaboratorINDUSTRY

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
No

Inclusion criteria

* Female patients with Fabry disease who have been exposed to at least 1 dose of pegunigalsidase alfa at any time during pregnancy (defined as having received pegunigalsidase alfa within 30 days prior to the DOC and/or during pregnancy) and/or during lactation, and their infants. o DOC, defined as 20/7 gestational weeks, will be calculated from last menstrual period \[LMP\] or ultrasound * Patient or parent/legally authorized representative must be able to understand and provide consent through an Institutional Review Board / Independent Ethics Committee (IRB/IEC) approved Informed Consent Form.

Exclusion criteria

* None

Design outcomes

Primary

MeasureTime frame
Pregnancy outcome: Number of pregnancy losses (number of spontaneous abortions , number of pregnancy terminations, number of foetal deaths or stillbirths)spontaneous abortions: up to 20 weeks of pregnancy; pregnancy terminations: through the pregnancy; number of foetal deaths or stillbirths: greater than 20 weeks of pregnancy and through the pregnancy, average of 40 weeks
Pregnancy outcome: Number of live birthsat the delivery, after an average of 40 weeks of pregnancy
Pregnancy outcome: Number of preterm birthat delivery, prior to 37 weeks of gestation

Secondary

MeasureTime frame
Number of ectopic or molar pregnanciesthrough the pregnancy, an average of 40 weeks
Number of women with obstetric and delivery complicationsat the delivery, an average of 40 weeks of pregnancy
Number of women with complications of preeclampsia or eclampsiathrough the pregnancy, an average of 40 weeks
Number of women with complications of preterm prelabour rupture of membraneat delivery, prior to 37 weeks of gestation
Number of neonates/infants with minor congenital malformationsthrough the pregnancy, an average of 40 weeks and up to 12 months of infant age
Number of infants with developmental deficiencyup to 12 months of infant age
Number of hospitalisations in infantsup to 12 months of infant age
Mortality in infants, including neonatal death and infant deathup to 12 months of infant age
Head circumference in infants (cm)up to 12 months of infant age
Weight in infants (kilograms)up to 12 months of infant age
Length in infants (cm)up to 12 months of infant age
Number of infants born as SGAup to 12 months of infant age
Number of adverse events in infants exposed to pegunigalsidase alfa during breastfeedingup to 12 months of infant age
Number of infants with postnatal growth deficiency or FTTup to 12 months of infant age
Duration of breastfeeding, number of exclusively breastfeeding women and number of breastfeeding women supplemented with formulaup to 12 months of infant age
Number of neonates/infants with MCMsthrough the pregnancy, an average of 40 weeks and up to 12 months of infant age

Countries

Germany, Italy, Spain, United Kingdom, United States

Contacts

CONTACTChiesi Clinical Trial
clinicaltrials_info@chiesi.com+3905212791

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026