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Be Part of Research - Trial Details - Phase 2 Study for SAR443820 in Participants With Amyotrophic Lateral Sclerosis (ALS)

Phase 2 Study for SAR443820 in Participants With Amyotrophic Lateral Sclerosis (ALS)

Stopped

Open to: ALL

Age: 18.0 - 80.0

Medical Conditions

Motor Neuron Disease
Amyotrophic Lateral Sclerosis
Sclerosis


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


This was a parallel treatment, Phase 2, randomized, double-blind study to assess the efficacy, safety, tolerability, PK, and PD of twice daily (BID) oral SAR443820 compared with placebo in male and female participants, 18 to 80 years of age with ALS followed by an open-label, long-term extension period.

Study ACT16970 consisted of 2 parts (A and B) as follows:

Part A was a 24-week, double blind, placebo-controlled part, preceded by a screening period of up to 4 weeks before Day 1.

On Day 1 of Part A, participants were randomized in a 2:1 ratio to the SAR443820 treatment arm or matching placebo arm as listed below:

* Treatment arm: SAR443820, BID * Placebo arm: Placebo, BID

Randomization was stratified by the geographic region of the study site, region of ALS onset (bulbar vs other areas), use of riluzole (yes vs no), use of edaravone (yes vs no) and use of the combination of sodium phenylbutyrate and taurursodiol (named Relyvrio in the United States of America \[USA\] and Albrioza in Canada) (yes vs no). Participants attended in-clinic study assessments at baseline (Day 1), Week 2, Week 4, Week 6, Week 8, Week 10, Week 12, Week 16, Week 20, Week 21, Week 22, Week 23, and Week 24. All ongoing participants at Week 24 rolled to open-label extension Part B. The Week 24 Visit was the end of Part A and the beginning of Part B.

Part B was an open-label, long-term extension period that starts from Week 24 and continues up to Week 106. The objectives of Part B were to provide extended access to SAR443820 participants in Part A and to further evaluate the safety and efficacy of long-term SAR443820 treatment. The treatment assignment of participants at randomization in Part A remained blinded to Investigators, participants, and site personnel until the end of Part B. Every participant, except those who discontinued Investigational Medicinal Product (IMP) treatment permanently in Part A, received BID oral tablets of SAR443820 in Part B.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

Apr 2022 Mar 2024

INTERVENTIONAL

Intervention Type : DRUG
Intervention Description : Tablet oral

Intervention Arm Group : SAR443820;

Intervention Type : DRUG
Intervention Description : Tablet

Intervention Arm Group : Placebo;



You can take part if:



You may not be able to take part if:


This is in the inclusion criteria above


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Investigational Site Number : 8260002
    Plymouth
    Devon
    PL6 8DH
  • Investigational Site Number : 8260003
    Stoke-on-Trent
    Staffordshire
    ST46QG


The study is sponsored by Sanofi





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Read full details for Trial ID: NCT05237284
Last updated 17 March 2025

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