MediciNova, Inc., a biopharmaceutical company traded on the NASDAQ Global Market (NASDAQ:MNOV) and the Standard Market of the Tokyo Stock Exchange (Code Number: 4875), today announces the study update and interim analysis results from the Company's COMBAT-ALS Phase 2b/3 clinical trial of MN-166 (ibudilast) in Amyotrophic Lateral Sclerosis (ALS) will be presented at the 35th International Symposium on ALS/MND held December 6-8, 2024 in Montreal, Canada.

The highlights of the presentation, titled, "COMBAT-ALS Phase 2b/3 Trial of MN-166 (Ibudilast) in ALS: Trial Update and Interim Analysis Results" (Abstract # 302), include:

• Study Update: As of November 15, 2024, a total of 217 participants have been enrolled and 183 participants were assigned to either MN-166 or placebo group.
• Pre-defined interim analysis was conducted to evaluate the correlation between the 6-month and 12-month data and assess the 12-month double-blind phase trial design.
• A subset of patients from the full analysis set who had ALSFRS-R data at 6 months and at least one post-6-month data point. Correlation analysis of the Combined Assessment of Function and Survival (CAFS) scores at 6 and 12 months as well as modified CAFS scores and ALSFRS-R scores were evaluated.
• Positive correlations were observed between the 6-month and 12-month data for CAFS score (0.71), modified CAFS score (0.70), and ALSFRS-R (0.69). [Note: Values in parentheses are Spearman Rank Correlation coefficients]
• Positive correlations were also observed for Bulbar score (0.74), Fine motor score (0.71), and Gross motor score (0.67), but not for Respiratory score. [Note: Values in parentheses are Spearman Rank Correlation coefficients]
• Interim analysis results were reviewed and validated by an external independent Data Safety Monitoring Board (DSMB), which recommended that the trial continue as per the protocol.