Phase 1-2 Trial of Antisense Oligonucleotide Tofersen for


Journal

The New England journal of medicine
ISSN: 1533-4406
Titre abrégé: N Engl J Med
Pays: United States
ID NLM: 0255562

Informations de publication

Date de publication:
09 07 2020
Historique:
entrez: 9 7 2020
pubmed: 9 7 2020
medline: 28 7 2020
Statut: ppublish

Résumé

Tofersen is an antisense oligonucleotide that mediates the degradation of superoxide dismutase 1 (SOD1) messenger RNA to reduce SOD1 protein synthesis. Intrathecal administration of tofersen is being studied for the treatment of amyotrophic lateral sclerosis (ALS) due to We conducted a phase 1-2 ascending-dose trial evaluating tofersen in adults with ALS due to A total of 50 participants underwent randomization and were included in the analyses; 48 participants received all five planned doses. Lumbar puncture-related adverse events were observed in most participants. Elevations in CSF white-cell count and protein were reported as adverse events in 4 and 5 participants, respectively, who received tofersen. Among participants who received tofersen, one died from pulmonary embolus on day 137, and one from respiratory failure on day 152; one participant in the placebo group died from respiratory failure on day 52. The difference at day 85 in the change from baseline in the CSF SOD1 concentration between the tofersen groups and the placebo group was 2 percentage points (95% confidence interval [CI], -18 to 27) for the 20-mg dose, -25 percentage points (95% CI, -40 to -5) for the 40-mg dose, -19 percentage points (95% CI, -35 to 2) for the 60-mg dose, and -33 percentage points (95% CI, -47 to -16) for the 100-mg dose. In adults with ALS due to

Sections du résumé

BACKGROUND
Tofersen is an antisense oligonucleotide that mediates the degradation of superoxide dismutase 1 (SOD1) messenger RNA to reduce SOD1 protein synthesis. Intrathecal administration of tofersen is being studied for the treatment of amyotrophic lateral sclerosis (ALS) due to
METHODS
We conducted a phase 1-2 ascending-dose trial evaluating tofersen in adults with ALS due to
RESULTS
A total of 50 participants underwent randomization and were included in the analyses; 48 participants received all five planned doses. Lumbar puncture-related adverse events were observed in most participants. Elevations in CSF white-cell count and protein were reported as adverse events in 4 and 5 participants, respectively, who received tofersen. Among participants who received tofersen, one died from pulmonary embolus on day 137, and one from respiratory failure on day 152; one participant in the placebo group died from respiratory failure on day 52. The difference at day 85 in the change from baseline in the CSF SOD1 concentration between the tofersen groups and the placebo group was 2 percentage points (95% confidence interval [CI], -18 to 27) for the 20-mg dose, -25 percentage points (95% CI, -40 to -5) for the 40-mg dose, -19 percentage points (95% CI, -35 to 2) for the 60-mg dose, and -33 percentage points (95% CI, -47 to -16) for the 100-mg dose.
CONCLUSIONS
In adults with ALS due to

Identifiants

pubmed: 32640130
doi: 10.1056/NEJMoa2003715
doi:

Substances chimiques

Oligonucleotides 0
Oligonucleotides, Antisense 0
SOD1 protein, human 0
tofersen 2NU6F9601K
Superoxide Dismutase-1 EC 1.15.1.1

Banques de données

ClinicalTrials.gov
['NCT02623699']
EudraCT
['2015-004098-33']

Types de publication

Clinical Trial, Phase I Clinical Trial, Phase II Journal Article Multicenter Study Randomized Controlled Trial Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

109-119

Commentaires et corrections

Type : CommentIn
Type : CommentIn

Informations de copyright

Copyright © 2020 Massachusetts Medical Society.

Auteurs

Timothy Miller (T)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Merit Cudkowicz (M)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Pamela J Shaw (PJ)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Peter M Andersen (PM)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Nazem Atassi (N)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Robert C Bucelli (RC)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Angela Genge (A)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Jonathan Glass (J)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Shafeeq Ladha (S)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Albert L Ludolph (AL)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Nicholas J Maragakis (NJ)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Christopher J McDermott (CJ)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Alan Pestronk (A)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

John Ravits (J)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

François Salachas (F)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Randall Trudell (R)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Philip Van Damme (P)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Lorne Zinman (L)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

C Frank Bennett (CF)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Roger Lane (R)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Alfred Sandrock (A)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Heiko Runz (H)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Danielle Graham (D)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Hani Houshyar (H)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Alexander McCampbell (A)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Ivan Nestorov (I)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Ih Chang (I)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Manjit McNeill (M)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Laura Fanning (L)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Stephanie Fradette (S)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

Toby A Ferguson (TA)

From the Washington University School of Medicine, St. Louis (T.M., R.C.B., A.P.); the Healey Center for ALS, Massachusetts General Hospital, Harvard Medical School, Boston (M.C., N.A.), and Biogen, Cambridge (A.S., H.R., D.G., H.H., A.M., I.N., I.C., L.F., S.F., T.A.F.) - both in Massachusetts; the Sheffield Institute for Translational Neuroscience, University of Sheffield, and NIHR Sheffield Biomedical Research Centre and Clinical Research Facility, University of Sheffield and Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield (P.J.S., C.J.M.), and Biogen, Maidenhead (M.M.) - both in the United Kingdom; the Department of Clinical Science, Neurosciences, Umeå University, Umea, Sweden (P.M.A.); Montreal Neurological Institute and Hospital, Montreal (A.G.), and Sunnybrook Research Institute, Toronto (L.Z.); Emory University, Atlanta (J.G.); Barrow Neurological Institute, Phoenix, AZ (S.L.); the University of Ulm, Ulm, Germany (A.L.L.); Johns Hopkins University School of Medicine, Baltimore (N.J.M.); the University of California San Diego, La Jolla (J.R.), and Ionis Pharmaceuticals, Carlsbad (C.F.B., R.L.) - both in California; Paris ALS Centre, Hôpital de la Salpêtrière, Paris (F.S.); the University of Tennessee Medical Center, Knoxville (R.T.); and KU Leuven, VIB Center for Brain and Disease Research, University Hospitals Leuven, Leuven, Belgium (P.V.D.).

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