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Study identifier: NCT04159103 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Open-Label Study of mRNA-3927 in Participants With Propionic Acidemia

Condition: Propionic Acidemia  ·  Sponsor: ModernaTX, Inc.

PhasePhase 1/Phase 2
Planned participants77
Who can joinAll sexes, N/A to no upper limit
Healthy volunteersNo

About this study

This 3-part, Phase 1/2 study is designed to characterize the safety, tolerability, and pharmacological activity (as assessed by biomarker measurements) and to determine the selected dose of mRNA-3927 in participants with genetically confirmed propionic acidemia (PA). After establishing a dose with an acceptable safety and pharmacodynamic (PD) response for participants ≥1 year of age in Part 1, participants will be enrolled in Part 2 (which will serve as the pivotal study) to allow for determination of the efficacy, safety, and PD of mRNA-3927. Part 3 will evaluate the safety, efficacy and PD response of mRNA-3927 in infants (\<1 year of age).

This description comes directly from the study's public registry record.

Talk to the study team

Moderna WeCare Team  ·  1-866-663-3762  ·  WeCareClinicalTrials@modernatx.com

Always discuss trial participation with your own doctor first.

Locations (35)

UCSD Altman Clinical and Transalational Research Institute BuildingLos Angeles, California, United StatesNot Yet Recruiting
Ronald Reagan UCLA Medical CenterLos Angeles, California, United StatesRecruiting
Lucile Packard Children's Hospital StanfordStanford, California, United StatesRecruiting
Nicklaus Children's HospitalMiami, Florida, United StatesNot Yet Recruiting
University of South Florida - 12901 Bruce B DownsTampa, Florida, United StatesNot Yet Recruiting
Ann and Robert H Lurie Childrens Hospital of ChicagoChicago, Illinois, United StatesRecruiting
Johns Hopkins Hospital, Adult Outpatient Clinical Research UnitBaltimore, Maryland, United StatesCompleted
Boston Children's HospitalBoston, Massachusetts, United StatesCompleted
University of Michigan HospitalsAnn Arbor, Michigan, United StatesRecruiting
Icahn School of Medicine at Mount Sinai - Clinical Research UnitNew York, New York, United StatesRecruiting
Duke University Medical System (Duke Health)Durham, North Carolina, United StatesRecruiting
Cincinnati Children's Hospital Medical CenterCincinnati, Ohio, United StatesCompleted

+ 23 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT04159103