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Immune cell analysis could unlock ALS mysteries

NCT ID NCT04816227

Knowledge-focused Sponsor: Institut National de la Santé Et de la Recherche Médicale, France Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at immune cells called macrophages in people with ALS, a disease that affects movement. Researchers will compare these cells between ALS patients, healthy people, and those with other motor problems. The goal is to find new targets for future treatments and better ways to diagnose ALS. No treatment is given—this is a research study to gather information.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 180 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2021

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Group 1: Be affected by Amyotrophic Lateral Sclerosis (ALS) definite, probable or possible (El Escorial criteria) sporadic SALS (no known history in the family) or familial FALS (at least one other member of the family affected) Group 2: Be a carrier of a known mutation causing ALS and be asymptomatic Group 3: Have a motor impairment related to ALS including the following pathologies: Motor neuropathy, myopathy, Myositis, Spastic paraplegia, Cram / fasciculation syndrome, Chronic inflammatory polyradiculitis, somatization disorder, Anterior spinal artery syndrome, encephalitis, myelitis, Peroneal neuropathy, cervical myelopathy with radiculopathy, spinocerebellar ataxia, Kennedy disease, Spinal atrophy, Hereditary distal motor neuropathy. Group 4: Healthy control

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Agree to participate in this research and have signed an informed consent * Be able to understand the objectives and procedures of the study * Be affiliated to French social security or equivalent * Meet one of the criteria below: (i) Be affected by Amyotrophic Lateral Sclerosis (ALS) definite, probable or possible (El Escorial criteria) sporadic SALS (no known history in the family) or familial FALS (at least one other member of the family affected), (ii) not being affected by ALS but having a close relative who has or has been diagnosed with ALS and has or is a carrier of a known mutation causing ALS and has consented to a genetic analysis, (iii) Have a motor impairment including the following pathologies: Motor neuropathy, myopathy, Myositis, Spastic paraplegia, Cram / fasciculation syndrome, Chronic inflammatory polyradiculitis, somatization disorder, Anterior spinal artery syndrome, encephalitis, myelitis, Peroneal neuropathy, cervical myelopathy with radiculopathy, spinocerebellar ataxia, Kennedy disease, Spinal atrophy, Hereditary distal motor neuropathy. (iv) be accompanying a person with ALS or other motor impairment that is followed by one of the doctors from the ALS referral center at the Pitié-Salpêtrière hospital or by a neurologist from the neurophysiology department at the Pitié-Salpêtrière hospital. Exclusion Criteria: * Be subjected to a legal protection measure (safeguard of justice, curatorship or guardianship) * Refusing to participate in the study * Whose condition, in the opinion of the doctor, is incompatible with blood draw or participation in research * Being pregnant or breastfeeding

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Conditions

The condition(s) this trial relates to.

amyotrophic lateral sclerosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Amyotrophic lateral sclerosis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Département de Neurologie, Hôpital de la Pitié-Salpêtrière

    RECRUITING

    Paris, 75013, France

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