Skip to content

A Study of Safety of Weekly Subcutaneous Pegzilarginase in Subjects With Arginase 1 Deficiency

A Phase 3 Open-Label Study of Safety of Weekly Subcutaneous Pegzilarginase in Subjects With Arginase 1 Deficiency

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05676853
Enrollment
3
Registered
2023-01-09
Start date
2023-04-04
Completion date
2023-04-27
Last updated
2023-07-27

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

Conditions

Arginase I Deficiency, Hyperargininemia

Keywords

ARG1-D

Brief summary

This is an open-label, multicenter study to evaluate the safety of weekly SC administration of pegzilarginase over 12 months in subjects with ARG1-D. The study consists of a screening period of up to 4 weeks, a subsequent 12-month treatment period, and a Safety Follow-Up Visit 2 weeks after the last treatment.

Detailed description

Open-label, multicenter study to evaluate the safety of weekly SC administration of pegzilarginase over 12 months in subjects with ARG1-D. The study consists of a screening period of up to 4 weeks, a subsequent 12-month treatment period, and a Safety Follow-Up Visit 2 weeks after the last treatment.

Interventions

Individualized disease management which includes severe protein restriction, essential amino acid supplementation and the ammonia scavengers when indicated

Sponsors

Aeglea Biotherapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Prior enrollment in pegzilarginase clinical studies, with completion of treatment or continued dosing as of the study termination date 2. Written informed consent by subject/parent/legal guardian, which includes compliance with the requirements and restrictions listed in the informed consent form and in this protocol 3. Negative pregnancy test within 7 days prior to dosing in childbearing subjects if they are sexually active 4. If the subject (male or female) is engaging in sexual activity that could lead to pregnancy, must be surgically sterile, post-menopausal (female), or must agree to use a highly effective method of birth control during the study and for a minimum of 30 days after the last study drug administration. Highly effective methods of contraception include combined (estrogen and progestogen-containing) hormonal contraception associated with inhibition of ovulation, progesterone-only hormonal contraception associated with inhibition of ovulation, intrauterine device, or intrauterine hormone-releasing system

Exclusion criteria

1. Subjects with acute or ongoing hyperammonemia within 6 weeks of the first dose 2. Subjects with medical conditions or underlying issues that, in the opinion of the Investigator, would preclude participation in the study

Design outcomes

Primary

MeasureTime frameDescription
Treatment emergent adverse eventsBaseline through week 54To evaluate the safety of long-term subcutaneous pegzilarginase in subjects with arginase 1 deficiency (ARG1-D)

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026