Tracks long-term safety of tofersen in people with SOD1 ALS
Collects safety information from adults with SOD1 ALS taking tofersen.
Plain-language title generated from the registry record
Registry title: A Study to Learn More About the Long-Term Safety of Tofersen (Qalsody) in Participants With Superoxide Dismutase 1 (SOD-1) Amyotrophic Lateral Sclerosis (ALS)
Key facts
- Where
- Boston, United StatesSee the site
Where in United States
- Mass General Hospital -MGHBoston, United StatesTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Biogen
- Trial code
- NCT07259980
- Record updated
- 9 April 2026
- Original description
In this study, researchers will learn more about the safety of tofersen, also known as Qalsody®. This is a drug available for doctors to prescribe for participant with a certain type of amyotrophic lateral sclerosis, also known as ALS. This type is in participant who have a mutation in the superoxide dismutase 1 gene, also known as SOD-1.Read full original descriptionShow less
An Observational Registry-Based Study to Evaluate the Long-Term Safety of Tofersen in People With SOD1-ALS
In this study, researchers will learn more about the safety of tofersen, also known as Qalsody®. This is a drug available for doctors to prescribe for participant with a certain type of amyotrophic lateral sclerosis, also known as ALS. This type is in participant who have a mutation in the superoxide dismutase 1 gene, also known as SOD-1.
This is known as an "observational" study, which collects health information about study participants without changing their medical care. Participants for this study will be found using 2 different groups of study research centers that help provide clinical care for participant with ALS. These groups are in Europe and the United States and are called:
* the Precision-ALS programme * the ALS/Motor Neuron Disease (MND) Natural History Consortium (NHC)
The main goal of this study is to collect safety information in participants with SOD-1 ALS who were in either of the groups.
The main question researchers want to answer in this study is:
* What are the characteristics of the participants in this study? * How many participants had serious adverse events (SAEs), including ones that affect the brain, spinal cord, or nerves?
An adverse event is a health problem that may or may not be caused by a drug during the study. An adverse event is considered serious when it results in death, is life-threatening, causes lasting problems, or requires hospital care.
Researchers will also learn more about:
* How many participants develop other health conditions or become pregnant, including how the pregnancy turned out * Why and when participants stopped treatment
This study will be done as follows:
* Participants will be screened to check if they can join the study. * Data from the participants' regular visits to their clinic will be collected based on which study research center they are in. * Each participant will be in the study until they decide to leave or until death. Currently, the study is planned to last at least 7 years.
Inclusion: Participants with an ALS diagnosis and a confirmed SOD1 mutation from contributing registry networks will be considered for inclusion in the study.
Exclusion: Data collected while a person with SOD1-ALS is participating in an interventional clinical trial (with tofersen or any other investigational medicinal product) will be excluded; NOTE: Other protocol- defined Inclusion/Exclusion criteria may apply.