AB Science: Revenues for the first half of 2024 and update on AB Science’s activities

In This Article:

AB Science
AB Science

       PRESS RELEASE

AB SCIENCE PRESENTS ITS FINANCIAL RESULTS FOR THE FIRST HALF OF 2024 AND THE KEY EVENTS OF THE PERIOD

  • Clinical development

    • Masitinib platform:

      • Ongoing re-examination by EMA and Health Canada of the marketing authorisation application for masitinib in amyotrophic lateral sclerosis (ALS)

      • Update on the development of masitinib in progressive forms of multiple sclerosis following the ECTRIMS 2024 conference

      • Positive results from the phase 2 study of masitinib in Covid-19

      • Strengthening the intellectual property of masitinib in mastocytosis

    • Microtubule platform:

      • Update on the AB8939 microtubule program and in in particular on the ability of AB8939 to generate a response on MECOM rearrangement

  • Financial and corporate situation

    • Operating deficit of 3.6 million euros as of June 30, 2024, down 59.5% compared to the first half of 2023

    • Cash position of 9.1 million euros as of June 30, 2023, to which is added 5 million euros from the capital increase by private placement announced in September 2024

    • Completion of the settlement and delivery of the 5 million euros capital increase

Paris, October 10, 2024, 8.30am CET

AB Science SA (Euronext - FR0010557264 - AB) today announces its half-year financial results as of June 30, 2024 and provides an update on its activities.

KEY EVENTS RELATED TO CLINICAL DEVELOPMENT DURING THE FIRST HALF OF 2024 AND SINCE JUNE 30, 204

EMA negative opinion on the marketing authorisation application for masitinib in amyotrophic lateral sclerosis and ongoing re-examination of the dossier by EMA

AB Science announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has adopted, in line with the trend vote, a negative opinion on the application for conditional marketing authorization of masitinib in the treatment of amyotrophic lateral sclerosis (ALS).

AB Science requested a re-examination on the basis of:

  • First and foremost, the urgent need for patients to have early access to a promising treatment.

  • The opportunity of having the dossier re-examined by new rapporteurs and by a Scientific Advisory Board.

AB Science highlights the difficulty of a conditional marketing authorization in ALS and cannot guarantee a positive outcome following this re-examination.

The reasons which nevertheless led AB Science to request a re-examination of the file are as follows:

  • Acceptable masitinib safety: First, the CHMP confirmed that the safety of masitinib is deemed acceptable, which is a key consideration in the context of a conditional marketing authorization where confirmatory evidence of efficacy is required.

  • Objection concerning deviations from Good Clinical Practice: As per EMA guidance (EMA/868942/2011), impact analyses of all protocol deviations that could not be corrected were performed and showed no impact, resolving Good Clinical Practice issues as per guideline.

  • Objection concerning the exclusion of fast progressors: The amendment transitioning from phase 2 to phase 3 excluding fast progressors from the primary analysis population was necessary and well justified, in order to have a more homogenous population with greater chance of reaching week 48 time point and minimizing missing data. Furthermore, the amendment was implemented early enough and while the study was blinded, removing any methodological issues.

  • Objection concerning the treatment of missing data in the primary analysis: Multiple sensitivity analysis of the primary analysis; using non LOCF (Last Observation Carried Forward) methods for imputation of missing data, are positive and consistent, including two analyses previously recommended by the CHMP, demonstrating the robustness of the primary analysis, thus resolving the objection concerning the treatment of missing data.

  • Objection on the subgroup data: There was an important imbalance in a subset of patients experiencing complete loss of function (i.e., ALSFRS-R score of zero) in one or more of the item scores (20% in the masitinib arm versus 8% in the placebo arm), because ALSFRS-R score was minimized but not stratified by category of severity. The subgroup defined as patients prior to any complete loss of function (i.e. excluding the overmentioned biased subset) accounted for 86% of the population and showed extremely compelling results, including a significant 12 months survival benefit. The subgroup analysis is the strict application of EMA guidance (EMA/CHMP/539146/2013), which is applicable to post hoc analysis and to registration with single pivotal study, thus resolving the objection regarding subgroup data.