Study of Predictive Factors of Progression of Motor Neurone Disease (PULSE)
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ClinicalTrials.gov Identifier: NCT02360891 |
Recruitment Status :
Recruiting
First Posted : February 11, 2015
Last Update Posted : November 7, 2022
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Amyotrophic lateral sclerosis (ALS) is a complex polymorph and devastating neurodegenerative disease. Although the pathophysiological mechanisms underlying the development of ALS remain to be fully elucidated, there have been significant advances in the understanding of ALS pathogenesis, with evidence emerging of a complex interaction between genetic factors and dysfunction of vital molecular pathways. However, the numerous randomized clinical trials (RCT) for ALS have failed to generate improved drug treatments. Biomarkers able to bring prognostic value and to distinguish the different endophenotypes of this polymorphic disease could help to better select clusters of patients in order to improve the RCT outcomes. However, little progress has been made in the development of viable diagnostic, prognostic and monitoring markers. This could be explained by common shortcomings, such as relatively small sample sizes, statistically underpowered study designs, lack of disease controls and poorly characterized patient cohorts. It is yet crucial that the investigators further develop and validate ALS biomarkers and incorporate these biomarkers into the drug development pipeline for ALS.
The aim of the present study is therefore to determine the clinical, biological, imaging, and electrophysiological biomarkers of prognosis of survival without events (i.e. severe comorbidity, 24 hours of non invasive ventilation, tracheotomy). This is a prospective observational multicentric French study of a cohort of 1000 ALS patients.
This large multimodal database will be open for international fruitful scientific collaborations.
Condition or disease | Intervention/treatment |
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Amyotrophic Lateral Sclerosis Motor Neuron Disease | Other: biomarkers (composite analysis) |
This is a prospective observational multicentric French study of a cohort of 1000 ALS patients, 100 neurological controls and 200 healthy controls followed from the first signs to the end of the disease.
The aim of the present study is therefore to determine the clinical, biological, imaging, and electrophysiological biomarkers of prognosis of survival without events (i.e. severe comorbidity, 24 hours of non invasive ventilation, tracheotomy).
Secondary objectives will notably include i) the biomarkers of disease progression ii) biomarkers of diagnosis as compared with controls iii) the determination of the different endophenotypes according to the prognosis, the genetic profiles and the initial clinical presentations. Criteria of assessment will notably include detailed medical history, habitus, past and present treatments, vascular risk factors, ALSFRS-R, muscular testing, respiratory parameters including early nocturnal saturation and apneal profile, the detailed and predetermined clinical presentations, extensive cognitive and behavioral examination, extensive blood, cerebrospinal fluid, urines biological tests, genetic analyses, multiple brain and spinal MRI sequences, and electrophysiological tests (i.e. electromyogram, MUNIX, triple stimulation). Invasive tests will be optional (i.e. lumbar puncture, skin biopsies, muscular biopsies).
The large number of patients will allow in depth statistical analyses, notably to establish decisional trees (CHAID).
Study Type : | Observational [Patient Registry] |
Estimated Enrollment : | 1000 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Target Follow-Up Duration: | 10 Years |
Official Title: | Study of Predictive Factors of Progression of Motor Neurone Disease Prognosis and Endophenotype Biomarkers French Database Set up |
Actual Study Start Date : | January 12, 2015 |
Estimated Primary Completion Date : | January 2026 |
Estimated Study Completion Date : | January 2026 |

Group/Cohort | Intervention/treatment |
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patients
follow up of patients with amyotrophic lateral sclerosis from the first signs to the end of the disease
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Other: biomarkers (composite analysis)
biological, imaging, electrophysiological and anatomopathological examinations |
neurological controls
patients with other neurological disease
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Other: biomarkers (composite analysis)
biological, imaging, electrophysiological and anatomopathological examinations |
healthy controls
age matched healthy controls
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Other: biomarkers (composite analysis)
biological, imaging, electrophysiological and anatomopathological examinations |
- Change of biomarkers of survival [ Time Frame: From date of randomization until the date of first documented progression , assessed up to 100 months ]The predictive value of the clinical, biological, imaging, and electrophysiological biomarkers of survival will be analyzed according to the life duration (months) without events (i.e. severe comorbidity, 24 hours of non invasive ventilation, tracheotomy)
- Change of biomarkers of disease progression [ Time Frame: baseline, 3 months, 6 months, 9 months, 12 months, 15 months, 24 months, 36 months, 48 months (average) ]The predictive value of the clinical, biological, imaging, and electrophysiological biomarkers of prognosis will be analyzed according to the rate of progression of the ALSFRS-R score
- Clinical endophenotypes according to the survival duration [ Time Frame: From date of randomization until the date of death related with ALS or tracheotomy or continuous non invasive ventilation (24 hours a day), whichever came first, assessed up to 100 months ]The determination of the different clinical, biological, radiological and electrophysiological endophenotypes (clusters of the same characteristics) according to the survival duration
- Genetic endophenotypes [ Time Frame: the date of death related with ALS or tracheotomy or continuous non invasive ventilation (24 hours a day), whichever came first, assessed up to 100 months ]the determination of the different clinical, biological, radiological and electrophysiological endophenotypes (clusters of the same characteristics) according to the according to the genetic forms (SOD1, TDP43, FUS, C9orf72,...)
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 18 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria for ALS patients:
- Patients with suspicion of Amyotrophic lateral sclerosis
- Since the first signs (cramps fasciculation) or first deficit at the diagnosis work up
- Patient older than 18 years
- Patient able to provide informed consent
Inclusion Criteria for healthy controls:
- Subjects older than 18 years (matched population for age and sex with ALS)
- Neurological testing and examination showing no neurological disorders.
- Not having severe disease or life- functional prognosis
Inclusion Criteria for neurological controls:
- Patients having a typical neurodegenerative diseases other than ALS (Parkinson's disease, Alzheimer's disease)
- Not having severe disease or life- functional prognosis
- Patient older than 18 years (matched population for age and sex with ALS)
- Patient able to provide informed consent
Exclusion Criteria:
- Subjects younger than 18 years
- Patient unable to provide informed consent
- Having severe disease or life- functional prognosis
- Contraindications MRI

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02360891
Contact: David Devos, MD, PhD | david.devos@chru-lille.fr |
France | |
CHU Pontchaillou | Recruiting |
Angers, France | |
Principal Investigator: Dominique Maugin, MD,PhD | |
CHU Cote de Nacre | Recruiting |
Caen, France | |
Principal Investigator: Fausto Viader, MD | |
CHU Gabriel Montpied | Recruiting |
Clermont-Ferrand, France | |
Principal Investigator: Nathalie Guy, MD | |
CHRU, Hôpital Salengro | Recruiting |
Lille, France | |
Contact: David Devos, MD, PhD david.devos@chru-lille.fr | |
Principal Investigator: David Devos, MD, PhD | |
Hôpital Dupuytren | Recruiting |
Limoges, France | |
Principal Investigator: Philippe Couratier, MD | |
Hôpital Neurologique Pierre Wertheimer | Recruiting |
Lyon, France | |
Principal Investigator: Emilien Bernard, MD,PhD | |
AP-HM,Hôpital de la Timone | Recruiting |
Marseille, France | |
Principal Investigator: Attarian Shahram, MD,PhD | |
Hôpital Gui de Chauliac | Recruiting |
Montpellier, France | |
Principal Investigator: William Camu, MD | |
Hôpital de l'Archet 1, CHU | Recruiting |
Nice, France | |
Hôpital La Pitié (AP-HP) | Recruiting |
Paris, France | |
Principal Investigator: François Salachas, MD | |
Centre Hospitalier | Recruiting |
Saint Brieuc, France | |
Principal Investigator: Yvan Kolev, MD | |
Hôpital Nord | Recruiting |
Saint Etienne, France | |
Principal Investigator: Jean-Christophe Antoine, MD,PhD | |
CHU Bretonneau | Recruiting |
Tours, France | |
Principal Investigator: Philippe Corcia, MD |
Study Chair: | David Devos, MD, PhD | University Hospital, Lille |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | University Hospital, Lille |
ClinicalTrials.gov Identifier: | NCT02360891 |
Other Study ID Numbers: |
2012-50 2013-A00969-36 ( Other Identifier: ID RCB number, ANSM ) |
First Posted: | February 11, 2015 Key Record Dates |
Last Update Posted: | November 7, 2022 |
Last Verified: | November 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
multimodal biomarkers prognosis endophenotypes |
Motor Neuron Disease Amyotrophic Lateral Sclerosis Neurodegenerative Diseases Nervous System Diseases Neuromuscular Diseases |
Spinal Cord Diseases Central Nervous System Diseases TDP-43 Proteinopathies Proteostasis Deficiencies Metabolic Diseases |