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A Study to Assess the Long-term Safety and Clinical Activity of mRNA-3927 in Participants Previously Enrolled in the mRNA-3927-P101 Study

A Phase 1/2, Global, Open-Label, Extension Study to Evaluate the Long-Term Safety and Clinical Activity of mRNA-3927 in Participants Previously Enrolled in the mRNA-3927-P101 Study

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05130437
Enrollment
50
Registered
2021-11-23
Start date
2021-11-09
Completion date
2031-12-04
Last updated
2026-03-23

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

Conditions

Propionic Acidemia

Keywords

mRNA-3927, Propionic Aciduria, Metabolism, Inborn Errors, Genetic Diseases, Inborn Amino Acid Metabolism, Inborn Errors, Acidosis, Acid-Base Imbalance, Metabolic Diseases, Organic Acidemias, Moderna, mRNA

Brief summary

The main purpose of this study is to evaluate the long-term safety of mRNA-3927 administered to participants with propionic acidemia (PA) who have previously participated in Study mRNA-3927-P101 (NCT04159103).

Detailed description

The study will assess long-term safety of mRNA-3927. Participants with PA who were previously enrolled and completed the end-of-treatment (EOT)/early termination (ET) visit of the mRNA-3927-P101 study will have the option to enroll into this extension study provided all eligibility criteria have been met. The study will include 2 periods: 1) Treatment Period and 2) Follow-up Period (90 days after the EOT visit). All participants will enter the study receiving mRNA-3927 at the same dose and at the same dosing interval last received in the mRNA-3927-P101 study.

Interventions

BIOLOGICALmRNA-3927

mRNA-3927 dispersion for IV infusion

Sponsors

ModernaTX, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
1 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participated in Study mRNA-3927-P101. * Completed the EOT/ET visit in Study mRNA-3927-P101 and enroll in this study such that the first dose in this study is planned to be within 14±3 days of the last dose of mRNA-3927 in the mRNA-3927-P101 study.

Exclusion criteria

* Not expected to receive clinical benefit from continued mRNA-3927 administration, in the opinion of the Investigator. * Any clinical or laboratory abnormality or medical condition that, at the discretion of the Investigator, may put the individual at increased risk by participating in this study. * History of liver and/or kidney transplant.

Design outcomes

Primary

MeasureTime frame
Number of Participants with Adverse Events (AEs), Serious AEs (SAEs), and AEs Leading to DiscontinuationBaseline through End of Study Visit (up to 8 years)

Secondary

MeasureTime frame
Annualized Frequency of Investigator-reported Metabolic Decompensation Events (MDEs)Baseline through End of Study Visit (up to 8 years)
Annualized Frequency of Investigator-reported MDE-related HospitalizationsBaseline through End of Study Visit (up to 8 years)
Annualized Frequency of Investigator-reported PA-related HospitalizationsBaseline through End of Study Visit (up to 8 years)
Annualized Frequency of Investigator-reported PA-related Urgent Healthcare EncountersBaseline through End of Study Visit (up to 8 years)

Countries

Canada, France, Japan, Netherlands, Saudi Arabia, Spain, United Kingdom, United States

Contacts

CONTACTModerna WeCare Team
WeCareClinicalTrials@modernatx.com1-866-663-3762

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026