Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 7:18 PM
Ignite Modification Date:
2025-12-24 @ 7:18 PM
NCT ID:
NCT04159103
Brief Summary:
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).
Detailed Description:
During the Dose Optimization Stage, after each dose cohort is fully enrolled (≥1 year of age), and the dose-limiting toxicity (DLT) observation window of at least 14 days is complete for the final participant in that cohort, the Sponsor will review the totality of available safety data in conjunction with all available PK/PD data. Based on this review, the Sponsor will recommend a revised dose and/or dosing interval. The Sponsor will abide by predefined constraints as to the maximum percentage change in dose and dose interval. A maximum of 9 cohorts will be enrolled in Part 1 (Dose Optimization).
Upon establishment of a dose with an acceptable safety and PD activity in Part 1 (participants ≥1 year of age), additional participants will be enrolled into the study in Part 2 (participants ≥1 year of age) to allow for determination of the safety, efficacy, and PD of mRNA-3927. Part 3 will evaluate the safety, efficacy and PD response in infants (\<1 year of age).
Participants in all the phases will participate in a predosing observational period, followed by a treatment period, and then a follow-up period after withdrawal of treatment.
Study:
NCT04159103
Study Brief:
Protocol Section:
NCT04159103