ALS (amyotrophic lateral sclerosis) is a disease where nerve cells controlling voluntary movement gradually die. About 5,000 people are diagnosed with ALS in the US each year. Until recently, treatment focused on riluzole and edaravone, which modestly slow progression, plus extensive supportive care for breathing, swallowing, and mobility.
What's actually going on in research
Trials are testing drugs that target specific genetic mutations (like SOD1), approaches to reduce inflammation in the brain and spinal cord, antisense therapies that silence disease-causing genes, and combinations of existing drugs. Researchers are also studying stem cells, gene therapy, and ways to protect motor neurons from dying. Much attention is on catching the disease earlier and identifying biomarkers that predict progression.
Gene-targeted therapies
Tofersen targets the SOD1 mutation that causes about 2% of ALS cases, using antisense technology to reduce the toxic protein. Similar approaches are in testing for other genetic forms of ALS, including C9orf72 mutations.
Combination approaches
Trials are testing whether combining drugs with different mechanisms — like pairing riluzole with AMX0035 (sodium phenylbutyrate and taurursodiol) — slows decline more than single drugs. The goal is to attack the disease from multiple angles simultaneously.
Early detection
Studies are working to identify ALS before significant motor neuron loss occurs, when treatment might be most effective. This includes blood tests for neurofilament light chain and imaging techniques that detect early nerve damage.
What to know before you search
Eligibility typically depends on time since diagnosis (often within 18-24 months), breathing capacity measured by forced vital capacity, and for genetic trials, confirmed presence of a specific mutation.
What types of trials are currently open
- Treatment trials — Testing new drugs to slow disease progression, often comparing them to riluzole or placebo in people with recent ALS diagnosis.
- Gene therapy trials — Studies of therapies targeting specific genetic mutations, available only to people with that mutation confirmed by genetic testing.
- Stem cell trials — Testing whether stem cells injected into the spinal cord or given intravenously can protect motor neurons or replace damaged ones.
- Device and care trials — Studies of breathing support devices, communication tools, feeding methods, and physical therapy approaches.
- Observational studies — Following people with ALS over time to understand how the disease progresses and what factors affect survival and quality of life.
Recently added ALS trials
An Early Feasibility Study of a Robotically Implanted Brain-Computer Interface for Neural Control of External Devices in Spinal Cord Injury, Amyotrophic Lateral Sclerosis, and Chronic Ischemic Stroke
The purpose of this study is to evaluate the safety and preliminary effectiveness of the N1 System, a fully implanted brain-computer interface placed in the motor cortex with the R1 Robot. The study builds on knowledge gained in a previous clinical investigation of this system. It enrolls adults with severe upper-limb impairment from spinal cord injury, amyotrophic lateral sclerosis (ALS), or chronic ischemic stroke. Participants use neural signals recorded by the N1 Implant to control a computer cursor or virtual keyboard. The study will describe serious adverse device effects and will assess digital daily activities, computer-control performance, independent use of the system, and participant-, clinician-, and caregiver-reported outcomes. Up to 10 participants will be enrolled at up to five sites in the United States and followed for about 2 years after implantation, or about 3 years if they choose extended follow-up. There is no comparison group; each participant's results are compared with their own baseline.
Register for Medical Data, Functional Scales, and Care Outcomes in ALS, SMA, and Other Motor System Disorders
This observational registry collects existing medical and routine care data from people with amyotrophic lateral sclerosis (ALS), spinal muscular atrophy (SMA), and other motor system disorders. The registry includes information about disease course, functional abilities, medications, medical devices, therapeutic services, nutrition, breathing support, and nursing care. It may also include patients' assessments of their treatment and care. The main goal is to describe how people with these conditions are treated and supported in routine clinical practice. The collected data will be used to study care delivery, patient outcomes, and changes in care over time. The findings may help answer research questions and support the future development of treatment standards and clinical care guidelines. This registry does not require any additional medical, nursing, or therapeutic intervention. It uses data generated during routine care and may include information reported by patients or a person authorized by them. The registry is operated by Ambulanzpartner Soziotechnologie APST GmbH in cooperation with Charité - Universitätsmedizin Berlin.
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