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April 16, 2019; 92 (16) Article

X-linked myotubular myopathy

A prospective international natural history study

Mélanie Annoussamy, Charlotte Lilien, Teresa Gidaro, View ORCID ProfileElena Gargaun, Virginie Chê, Ulrike Schara, Andrea Gangfuß, Adele D'Amico, James J. Dowling, Basil T. Darras, Aurore Daron, Arturo Hernandez, Capucine de Lattre, Jean-Michel Arnal, Michèle Mayer, Jean-Marie Cuisset, Carole Vuillerot, Stéphanie Fontaine, Rémi Bellance, Valérie Biancalana, Ana Buj-Bello, Jean-Yves Hogrel, Hal Landy, Laurent Servais
First published March 22, 2019, DOI: https://doi.org/10.1212/WNL.0000000000007319
Mélanie Annoussamy
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Charlotte Lilien
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Teresa Gidaro
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Elena Gargaun
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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  • ORCID record for Elena Gargaun
Virginie Chê
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Ulrike Schara
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Andrea Gangfuß
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Adele D'Amico
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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James J. Dowling
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Basil T. Darras
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Aurore Daron
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Arturo Hernandez
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Capucine de Lattre
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Jean-Michel Arnal
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Michèle Mayer
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Jean-Marie Cuisset
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Carole Vuillerot
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Stéphanie Fontaine
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Rémi Bellance
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Valérie Biancalana
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Ana Buj-Bello
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Jean-Yves Hogrel
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Hal Landy
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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Laurent Servais
From I-Motion (M.A., C.L., T.G., E.G., V.C., L.S.), Institute of Myology, Paris, France; Paediatric Neurology and Neuromuscular Center (U.S., A.G.), University of Essen, Germany; Unit of Neuromuscular and Neurodegenerative Disorders (A. D'Amico), Department of Neurosciences, Bambino Gesu Children's Research Hospital IRCCS, Rome, Italy; Division of Neurology and Program for Genetics and Genome Biology (J.J.D.), Hospital for Sick Children, Toronto, Canada; Boston Children's Hospital (B.T.D.), MA; Centre de Référence Neuromusculaire (A. Daron), CHR La Citadelle, Liège, Belgium; UCI Pediatrica (A.H.), Hospital Puerta del Mar, Cadiz, Spain; Centre de Référence Maladies Neuromusculaires Adulte (C.d.L.), Hôpital de la Croix-Rousse, Hospices Civils de Lyon; Service de Réanimation Polyvalente (J.-M.A.), Hôpital Sainte Musse, Toulon; Centre de Référence des Maladies Neuromusculaires d'Ile de France–Nord et Est (M.M.), Hôpital Armand Trousseau, Paris; Service de Neuropédiatrie Hôpital Roger Salengro (J.-M.C.), CHRU, Lille; Service de Rééducation Pédiatrique “L'Escale” (C.V., S.F.), Hôpital Mère Enfant, CHU-Lyon, France; CeRCa (R.B.), Hôpital Pierre-Zobda-Quitman, CHU de Martinique, Fort-de-France, Martinique; Laboratoire Diagnostic Génétique (V.B.), Nouvel Hôpital Civil, Strasbourg; Genethon (A.B.-B.), UMR S951 Inserm, Univ Evry, Université Paris Saclay, Evry; Neuromuscular Investigation Center (J.-Y.H.), Institute of Myology, Paris, France; and Valerion Therapeutics (H.L.), Concord, MA.
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X-linked myotubular myopathy
A prospective international natural history study
Mélanie Annoussamy, Charlotte Lilien, Teresa Gidaro, Elena Gargaun, Virginie Chê, Ulrike Schara, Andrea Gangfuß, Adele D'Amico, James J. Dowling, Basil T. Darras, Aurore Daron, Arturo Hernandez, Capucine de Lattre, Jean-Michel Arnal, Michèle Mayer, Jean-Marie Cuisset, Carole Vuillerot, Stéphanie Fontaine, Rémi Bellance, Valérie Biancalana, Ana Buj-Bello, Jean-Yves Hogrel, Hal Landy, Laurent Servais
Neurology Apr 2019, 92 (16) e1852-e1867; DOI: 10.1212/WNL.0000000000007319

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Abstract

Objectives Because X-linked myotubular myopathy (XLMTM) is a rare neuromuscular disease caused by mutations in the MTM1 gene with a large phenotypic heterogeneity, to ensure clinical trial readiness, it was mandatory to better quantify disease burden and determine best outcome measures.

Methods We designed an international prospective and longitudinal natural history study in patients with XLMTM and assessed muscle strength and motor and respiratory functions over the first year of follow-up. The humoral immunity against adeno-associated virus serotype 8 was also monitored.

Results Forty-five male patients aged 3.5 months to 56.8 years were enrolled between May 2014 and May 2017. Thirteen patients had a mild phenotype (no ventilation support), 7 had an intermediate phenotype (ventilation support less than 12 hours a day), and 25 had a severe phenotype (ventilation support 12 or more hours a day). Most strength and motor function assessments could be performed even in very weak patients. Motor Function Measure 32 total score, grip and pinch strengths, and forced vital capacity, forced expiratory volume in the first second of exhalation, and peak cough flow measures discriminated the 3 groups of patients. Disease history revealed motor milestone loss in several patients. Longitudinal data on 37 patients showed that the Motor Function Measure 32 total score significantly decreased by 2%. Of the 38 patients evaluated, anti–adeno-associated virus type 8 neutralizing activity was detected in 26% with 2 patients having an inhibitory titer >1:10.

Conclusions Our data confirm that XLMTM is slowly progressive for male survivors regardless of their phenotype and provide outcome validation and natural history data that can support clinical development in this population.

ClinicalTrials.gov identifier NCT02057705.

Glossary

AAV=
adeno-associated virus;
CHOP-INTEND=
Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders;
FEV1=
forced expiratory volume in the first second of exhalation;
FVC=
forced vital capacity;
MEP=
maximum expiratory pressure;
MFM=
Motor Function Measure;
MHFMS=
Modified Hammersmith Functional Motor Scale;
MIP=
maximum inspiratory pressure;
NSAA=
North Star Ambulatory Assessment;
PCF=
peak cough flow;
XLMTM=
X-linked myotubular myopathy

Footnotes

  • Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Received September 19, 2018.
  • Accepted in final form December 20, 2018.
  • © 2019 American Academy of Neurology
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Neurology: 100 (13)

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