Plain-English translation of NCT04816227 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Researchers believe that immune cells called macrophages may play a role in ALS (amyotrophic lateral sclerosis), a disease that damages the nerves controlling muscle movement. This study is collecting blood samples from people with ALS, family members who carry ALS genes, people with other motor disorders, and healthy volunteers to study how these immune cells behave differently in people with motor nerve disease.
ALS is a progressive disease with no cure, and scientists still don't fully understand what causes nerve cells to die. Recent research suggests that immune cells throughout the body—not just in the brain and spinal cord—may be involved in disease progression. By studying these cells in patient blood samples, researchers hope to identify new targets for future treatments.
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If you qualify, you will visit the research center at Pitié-Salpêtrière hospital in Paris for a single blood draw. A nurse or technician will collect a small amount of blood, which researchers will then study to examine how your immune cells are functioning. The visit should take less than an hour, and there are no ongoing appointments or follow-up visits required for this study.
AI-generated summary from trial data · Jun 1, 2026 · Not medical advice
France
Sponsor
Institut National de la Santé Et de la Recherche Médicale, France
Enrollment target
~180 participants
Started
September 2021
Primary completion
September 2027
Age range
18 Years and older
Last updated on clinicaltrials.gov in March 2026.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
François SALACHAS, MD
APHP, Hôpital de la Salpêtrière, INSERM U1127, ICM
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.