MAR-103 is a randomized, double-blind, parallel-group, placebo-controlled study with two parts (Part A and Part B).
In both Part A and Part B, participants will be randomized at Day 1. The study will include a screening period (up to 8 weeks), a 24-week treatment period, and a 12-week safety follow-up period. The 12-week safety follow-up period will include 2 clinic visits at Week 28 and Week 36 (End of Study).
Part A: Approximately 216 participants with baseline TG between 150 to 880 mg/dL will be enrolled in Part A at a 3:1 ratio of MAR001 to placebo for dosing every 4 weeks (Q4W). Three doses of MAR001 will be administered.
Part B: Approximately 100 participants with baseline TG between 450 and 2000 mg/dL will be enrolled in Part B at a 1:1 ratio of MAR001 to placebo for dosing every 4 weeks (Q4W). The MAR001 dose will be within the range tested during Part A and will be selected based on emerging Part A data.
