A Phase III, Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial to Evaluate the Safety and Efficacy of AMX0035 Versus Placebo for 48-week Treatment of Adult Patients With Amyotrophic Lateral Sclerosis (ALS)

Study Purpose:

The Phoenix Trial is a randomized double blind placebo controlled Phase III trial to evaluate the safety and efficacy of AMX0035 for treatment of ALS

Study Status:

Not recruiting

Disease:

Amyotrophic Lateral Sclerosis

Study Type:

Interventional

Type of Intervention:

N/A, Drug

Intervention Name:

Placebo, AMX0035

Placebo:

Yes

Phase:

Phase 3

Study Chair(s)/Principal Investigator(s):

N/A

Clinicaltrials.gov ID:

NCT05021536

Neals Affiliated?

Yes

Coordinating Center Contact Information

United States

Full Study Summary:

AMX0035 is a combination therapy designed to reduce neuronal death through blockade of key cellular death pathways originating in the mitochondria and endoplasmic reticulum (ER). This clinical trial is designed to demonstrate that treatment is safe, tolerable, and able to slow decline in function as measured by the ALSFRS-R and survival over 48 week. The trial will also assess the effects of AMX0035 on slow vital capacity, quality of life and plasma biomarkers of ALS.

Study Sponsor:

Amylyx Pharmaceuticals Inc.

Participant Duration:

48 weeks

Estimated Enrollment:

600

Estimated Study Start Date:

10 / 28 / 2021

Estimated Study Completion Date:

03 / 01 / 2024

Posting Last Modified Date:

01 / 06 / 2023

Date Study Added to neals.org:

08 / 25 / 2021

PHOENIX Clinical Trial Website: www.amylyxalstrial.com/

Minimum Age:

18 Years

Maximum Age:

N/A

Can participants use Riluzole?

Yes

Inclusion Criteria:

- Male or female, at least 18 years of age

- Diagnosis of ALS (definite or clinically probable)

- Time since onset of first symptom of ALS should be <24 months prior to randomization;

- If the participant is to be treated with riluzole and/or edaravone during the course of the trial, then treatment with riluzole and/or edaravone was, at the time of the screening visit, started and maintained at a stable regimen for at least 14 days for riluzole and/or for a full treatment cycle for edaravone;

- Capable of providing informed consent

- Capable and willing to follow trial procedures including visits to the trial clinic and visit requirements;

- Women of child bearing potential (e.g. not post-menopausal for at least one year or surgically sterile) must agree to use adequate birth control for the duration of the study and 3 months after last dose of study drug. Women must not be planning to become pregnant for the duration of the study and 3 months after last dose of study drug

- Men must agree to practice contraception for the duration of the study and 3 months after last dose of study drug. Men must not plan to father a child or provide for sperm donation for the duration of the study and 3 months after last dose of study drug

Exclusion Criteria:

- Presence of tracheostomy or permanent assisted ventilation(PAV)

- Slow Vital Capacity (SVC) less than 55%

- History of known allergy to phenyl butyrate or bile salts

- Abnormal liver function defined as bilirubin levels and/or aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) > 5 times the upper limit of the normal (obtained within 12 weeks from first dose)

- Renal insufficiency as defined by eGFR <60 mL/min/1.73m^2 (obtained within 12 weeks from first dose)

- Pregnant women (confirmed by a pregnancy test within 7 days of first dose) or women currently breastfeeding

- Current severe biliary disease which may result in the Investigator medical judgement in biliary obstruction including for example active cholecystitis, primary biliary cirrhosis, sclerosing cholangitis, gallbladder cancer, gangrene of the gallbladder, abscess of the gallbladder

- History of Class III/IV heart failure (per New York Heart Association - NYHA)

- Participant under severe salt restriction where the added salt intake due to treatment would put the participant at risk, in the Investigator clinical judgment

- Presence of unstable psychiatric disease, cognitive impairment, dementia or substance abuse that would impair ability of the participant to provide informed consent, according to Investigator judgment

- Clinically significant unstable medical condition (other than ALS) (e.g., cardiovascular instability, systemic infection, untreated thyroid dysfunction, severe laboratory test anomaly or clinically significant electrocardiogram [ECG] changes) that would pose a risk to the participant if he/she were to participate in the trial, according to Investigator judgment

- Previous treatment for ALS with cellular therapies or gene therapies

- Currently enrolled in another trial involving use of an investigational therapy

- Previous treatment with PB or taurursodiol within 30 days from Screening

- Implantation of Diaphragm Pacing System (DPS)

- Currently or previously treated within the last 30 days or planned exposure to any prohibited medications listed in Section 6.8 of the protocol

Barrow Neurological Institute

Phoenix, Arizona 85013
United States

University of Southern California

Los Angeles, California 90033
United States

University of California Irvine

Orange, California 92868
United States

California Pacific Medical Center Research Institute

San Francisco, California 94109
United States

University of Colorado

Aurora, Colorado 80045
United States

University of Florida

Gainesville, Florida 32068
United States

University of South Florida

Tampa, Florida 33612
United States

Emory University

Atlanta, Georgia 30322
United States

Augusta University Neuroscience Center

Augusta, Georgia 30912
United States

Northwestern University

Chicago, Illinois 60611
United States

Johns Hopkins University School of Medicine Outpatient Center

Baltimore, Maryland 21287
United States

Healey & AMG Center for ALS Research at Massachusetts General Hospital

Boston, Massachusetts 02114
United States

University of Massachusetts

Worcester, Massachusetts 01655
United States

Hennepin Healthcare Research Institute

Minneapolis, Minnesota 55415
United States

Washington University School of Medicine

Saint Louis, Missouri 63110
United States

Somnos Clinical Research

Lincoln, Nebraska 68510
United States

Rutgers University

New Brunswick, New Jersey 08901
United States

Columbia University

New York, New York 10032
United States

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina 27514
United States

Wake Forest University Health Sciences

Winston-Salem, North Carolina 27109
United States

The Ohio State University

Columbus, Ohio 43210
United States

University of Pennsylvania

Philadelphia, Pennsylvania 19107
United States

Lewis Katz School of Medicine at Temple University

Philadelphia, Pennsylvania 19140
United States

Austin Neuromuscular Center

Austin, Texas 78756
United States

Texas Neurology

Dallas, Texas 72506
United States

Virginia Commonwealth University

Henrico, Virginia 23233
United States

Swedish Neuroscience Institute

Seattle, Washington 98122
United States

University of Washington

Seattle, Washington 98195
United States

University Hospitals Leuven

Leuven
Belgium

CHU de Montpellier

Montpellier
France

Le Centre Hospitalier Régional Universitaire de Tours

Tours
France

Hôpital de la Salpêtrière

Paris
France

CHU Nice

Nice
France

Hospices Civils de Lyon Hôpital Neurologique Pierre Wertheimer Cellule Mutualisée de Recherche Clinique (CMRC)

Bron
France

Hôpitaux Universitaires de Marseille Timone

Marseille
France

CHU de Limoges - Hôpital Dupuytren

Limoges
France

CHRU de Lille - Hôpital Roger Salengro

Lille
France

Hopital Gabriel Montpied Service de Neurologie

Clermont-Ferrand
France

Uniklinikum Dresden

Dresden
Germany

Hannover Medical School

Hannover
Germany

Jena University Hospital

Jena
Germany

Medizinische Fakultät Mannheim der Universität Heidelberg

Mannheim
Germany

University Medical Center Rostock

Rostock
Germany

Ulm University Medical Centre

Ulm
Germany

Charité - Universitätsmedizin Berlin

Berlin
Germany

Trinity College Dublin/Beaumont Hospital

Dublin
Ireland

Università degli Studi della Campania Luigi Vanvitelli

Napoli
Italy

University of Torino

Turin
Italy

University of Padua

Padova
Italy

University of Milan Medical School

Milan
Italy

Azienda Ospedaliero Universitaria Di Modena

Modena
Italy

Centro Clinico NEMO

Milan
Italy

Università degli Studi di Bari Aldo Moro

Bari
Italy

University Medical Center Utrecht

Utrecht
Netherlands

Centrum Medyczne Linden

Kraków
Poland

City Clinic Warsaw

Warsaw
Poland

Centro Hospitalar Universitário Lisboa-Norte

Lisbon
Portugal

Hospital Universitario y Politécnico La Fe

Valencia
Spain

Biodonostia Health Research Institute; Hospital Universitario Donostia

San Sebastián
Spain

Hospital San Rafael

Madrid
Spain

Hospital Universitari de Bellvitge-IDIBELL

Barcelona
Spain

Hospital del Mar

Barcelona
Spain

Karolinska Institutet

Stockholm
Sweden

Umeå University Hospital

Umeå
Sweden

King's College London

London
United Kingdom

UCL Queen Square Institute of Neurology

London
United Kingdom

University of Plymouth

Plymouth
United Kingdom

Salford Royal Hospital Barnes

Salford
United Kingdom

Sheffield Institute for Translational Neuroscience (SITraN)

Sheffield
United Kingdom