At a glance
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Randomized, Double-blind, Placebo-controlled, Multicenter Phase 2 Trial Assessing the Effect of IMU-838 on Disease Activity, as Measured by Magnetic Resonance Imaging (MRI), as Well as Safety and Tolerability in Patients With Relapsing-remitting Multiple Sclerosis (RRMS)
In Brief
A Phase 2 clinical trial evaluating IMU-838 (30 mg/day), IMU-838 (45 mg/day), and 2 other interventions for Relapsing-Remitting Multiple Sclerosis (RRMS). Active but no longer recruiting, targeting 210 participants across 38 sites in 4 countries.
Detailed Summary
This is a Phase 2 multicenter, double-blind, placebo-controlled, randomized, parallel-group trial to assess the efficacy and safety of 2 once-daily oral doses of IMU-838 (vidofludimus calcium), a small molecule inhibitor of dihydroorotate dehydrogenase (DHODH), 30 mg/day and 45 mg/day in the main study, cohort 1 (and 10 mg/day for the patients in the cohort 2 substudy), in patients with RRMS and evidence of active disease. The trial consists of a screening period, a blinded 24-week main treatment period, and an optional initially blinded, then open-label extended treatment period of up to 9.5 years. About 40 centers are planned to participate in Romania, Bulgaria, Ukraine, and Poland; potential additional centers in Hungary and Croatia were not used. The study started with 195 patients in the main group (cohort 1) planned to be randomized 1:1:1 to treatment with 30 mg/day or 45 mg/day IMU-838, or placebo (65 patients each) in the main treatment period. During the extended treatment period, patients were initially re-randomized so that patients previously on placebo were re-randomized 1:1 to treatment with 30 g/day or 45 mg/day IMU-838, all other patients were re-randomized to the same treatment they previously received. With approval of Protocol Version 3.0, a sub-study patient group (cohort 2) has been added with up to 60 patients, randomized to placebo or 10 mg IMU-838 for 24 weeks after which the option is available to continue into the extended treatment period and the recommended dose of 30 mg/day. However, based on discussion between investigator and patient 45 mg/day IMU-838/day may also be used.
Study Details
Timeline
Interventions
* Main treatment period: All patients will receive half the assigned dose during the first 7 days of the main treatment period (one 15 mg tablet IMU-838 daily) and then start taking the full assigned dose from Day 7 onwards (two 15 mg tablets IMU-838 once daily). * Optional extended treatment period (optional): Participants who were re-randomized to a 30 mg/day dose will take the full assigned dose which consists of two 15 mg tablets IMU-838 once daily.
* Main treatment period: All patients will receive half the assigned dose during the first 7 days of the main treatment period (one 22.5 mg tablet per day) and then start taking the full assigned dose from Day 7 onwards (two 22.5 mg tablets once daily). * Optional extended treatment period (optional): Participants who were re-randomized to a 45 mg/day dose will take the full assigned dose of two 22.5 mg tablets IMU-838 once daily.
* Main treatment period (Cohort 1 and Cohort 2): All patients will receive 1 tablet per day during the first 7 days of the main treatment period and then start taking 2 tablets once daily from Day 7 onwards. * Optional extended treatment period: Placebo not applicable as participants were re-randomized to a 30 mg/day dose or a 45 mg/day dose.
* Main treatment period for Cohort 2: All patients will receive half the assigned dose during the first 7 days of the main treatment period (one 5 mg tablet per day) and then start taking the full assigned dose from Day 7 onwards (two 5 mg tablets once daily). * Optional extended treatment period (not applicable to Cohort 2): IMU-838 10 mg/day not applicable.