Mitsubishi Tanabe Pharma America, Inc. today announced the publication of results from the global, multi-center, open-label, Phase 3 clinical trial (MT-1186-A01) evaluating the long-term safety and tolerability of RADICAVA ORS® in the treatment of amyotrophic lateral sclerosis (ALS) over 48 weeks of treatment. Results from the study, which was completed in March 2022, showed RADICAVA ORS was generally well tolerated during the treatment period, with no new safety signals identified. Study findings were published in Muscle & Nerve.

"We're encouraged by the data that we continue to collect from the global Phase 3 trial of RADICAVA ORS, demonstrating a favorable safety profile after 48 weeks of treatment," said Gustavo A. Suarez Zambrano, M.D., Vice President of Medical Affairs at MTPA. "These data build upon the study's 24-week findings that supported the FDA approval of RADICAVA ORS and underscore our commitment to growing our body of knowledge regarding the use of this treatment in people with ALS."

RADICAVA ORS was approved by the U.S. Food and Drug Administration (FDA) on May 12, 2022, as an oral suspension form of edaravone, the active ingredient in RADICAVA® (edaravone) – an FDA-approved intravenous (IV) treatment shown to slow the loss of physical function in ALS.1 The approval of RADICAVA ORS was supported by several studies, including 24-week results from Study MT-1186-A01 demonstrating the safety and tolerability profile of the treatment in 185 ALS patients. In prior clinical trials for RADICAVA, the most common adverse events (AEs) reported in participants were contusion (15%), gait disturbance (13%) and headache (10%).1 In the pivotal safety trial for RADICAVA ORS (MT-1186-A01), the most common AEs reported at 24 weeks in participants were muscular weakness (16.2%), fall (15.7%) and fatigue (7.6%). RADICAVA and RADICAVA ORS are contraindicated in people with a history of hypersensitivity to edaravone or any of the inactive ingredients.1 To learn more about RADICAVA ORS, visit RADICAVA.com. See Important Safety Information below.

Study MT-1186-A01 enrolled 185 patients with ALS across 50 sites in the in the U.S., Canada, Europe and Japan. The most common treatment-emergent adverse events (TEAEs) reported by ≥10% of participants at 48 weeks were fall (22.2%), muscular weakness (21.1%), constipation (17.8%), dyspnea (10.8%), dysphagia (10.3%) and back pain (10.3%). No serious TEAEs related to the study drug were reported during the 48-week study period. Additionally, the discontinuation rate during the treatment period was 25%, with 8.6% of participants discontinuing the drug due to TEAEs. Finally, a total of 12 deaths were reported due to 13 TEAEs (respiratory failure, worsening of ALS, pneumonia, acute respiratory failure, lung disorder, diabetic ketoacidosis, feeding disorder and suicide). None of the TEAEs leading to death were considered to be related to the study drug.

"The 48-week results from this trial suggest that RADICAVA ORS was well tolerated, and support its long-term use as a treatment for ALS," said Gary L. Pattee, M.D., a neurologist and ALS specialist based in Lincoln, Neb. "Our hope is for these data to provide additional information to physicians who are considering this oral treatment option for their patients."

This study was funded and conducted by MTPA and Mitsubishi Tanabe Pharma Development America, Inc. (MTDA).

Source:prnewswire.com