SPATAX: Clinical and Genetic Analysis of Cerebellar Ataxias and Spastic Paraplegias (Spatax)

Clinical and Genetic Analysis of Autosomal Recessive Forms of Cerebellar Ataxias and Spastic Paraplegias

Cerebellar ataxias (CA) and spastic paraplegias (SP) are genetically and clinically very heterogeneous. More than 40 loci are already known but the number of phenotypes is even greater suggesting further genetic heterogeneity. These progressive disorders are often severe and fatal, due to the absence of specific therapy. The SPATAX network combines the experience of European clinicians and scientists working on these groups of diseases. Over the past year, they have assembled the largest collection of families and achieved a number of tasks (initiation of a clinical and genetic database, distribution of DNA to participating laboratories, mapping of three new loci, and refinement of several loci). In addition to clinicians from Europe and Mediterranean countries, who play a major role in collecting families according to evaluation tools developed and validated by the SPATAX members, the group includes major European laboratories devoted to the elucidation of the molecular basis of these disorders. Each laboratory will centralize all families with a subtype of autosomal recessive (AR) CA (n=116) or SP (n=207) in order to efficiently map and identify the responsible gene(s). Genome-wide scans are already underway in 61 families. Given the expertise of the participants, the researchers expect to map and identify several genes during the course of this project. The spectrum of mutations and phenotype/genotype correlations will be analysed thanks to this unique series of patients with various phenotypes. The knowledge gained will be immediately applicable to patients in terms of improved positive diagnosis, follow-up and appropriate genetic counselling. In the long term, models for genetic entity will be developed in order to understand the pathophysiology and to identify new targets for treatment. The series of patients assembled and the precise knowledge of natural history will facilitate the implantation of therapeutic trials based on rational approaches.

Study Overview

• Status: Completed
• Conditions: Cerebellar Ataxias; Spastic Paraplegias

• Study Type: Observational
• Enrollment (Actual): 6000

Contacts and Locations

Study Locations

• Algeria
  • Algiers, Algeria, 16000
    • CHU Mustapha
• Belgium
  • Brussels, Belgium, 1070
    • Université Libre de Bruxelles - Hôpital Erasme
• Denmark
  • Copenhagen, Denmark, 2200
    • The Panum Institute
• France
  • Angers, France, 49000
    • CHU d'Angers
  • Bordeaux, France, 33000
    • Hôpital Pellegrin
  • Clermont-Ferrand, France, 63000
    • Hôpitaux de Clermont-Ferrand
  • Grenoble, France, 38000
    • CHU
  • Marseille, France, 13000
    • Hôpital de la Timone
  • Nîmes, France, 30000
    • Hopital Caremeau
  • Paris, France, 75012
    • Hôpital Armand Trousseau
  • Paris, France, 75013
    • Pitié-Salpêtrière Hospital
  • Rouen, France, 76000
    • Hôpital Charles Nicolle
  • Toulouse, France, 31000
    • Hopital Purpan
• Israel
  • Jerusalem, Israel, 91120
    • Hadassah-Hebrew University Hospital
• Italy
  • Napoli, Italy, 80131
    • Dipartimento Di Scienze Neurologiche
  • Roma, Italy, 00165
    • Molecular Medicine and Department of Neurosciences
• Lebanon
  • Beirut, Lebanon, 1107 2180
    • Université Saint-Joseph
• Morocco
  • Rabat, Morocco
    • CHU de Rabat
• Netherlands
  • Nijmegen, Netherlands, 6500 HB
    • Radboud University Nijmegen Medical Centre
• Norway
  • Oslo, Norway, 407
    • Ullevål University Hospital
• Portugal
  • Porto, Portugal, 4150-180
    • University of Porto
  • Santa Maria Da Feira, Portugal, 4520-211
    • Hospital San Sebastião
• Saudi Arabia
  • Riyadh, Saudi Arabia, 11461
    • King Khalid University Hospital
• Serbia
  • Belgrade, Serbia, 11000
    • Clinical Centre of Serbia
• Tunisia
  • Sfax, Tunisia
    • Hôpital Habib Bourguiba
• United Kingdom
  • London, United Kingdom, NW3 2PF
    • Royal Free and University College Medical School
  • London, United Kingdom, WC1N 3BG
    • The National Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years to 70 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

French population

Description

Inclusion Criteria:

• Progressive ataxia or paraplegia

Exclusion Criteria:

• Lack of signed informed consent

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Characterize clinically the different forms of these diseases	Validation of a new quantitative tool with more sensitive grading scale of cerebellar syndrome, spasticity and their consequences. In one single device, three tests were assessed for hand coordination ( " tapping test ", " peg board test" and " click test "), one test for dysarthria and a final test to quantify walking disorders due to spasticity (distance covered in 5 seconds).	Year 1 to Year 7
Elucidate the molecular bases of these diseases	To elucidate the molecular bases of these diseases (identify the loci/genes involved as well as those that modulate their expression) in order to enable the development of molecular diagnostics, the study of disease mechanisms, the identification of biomarkers and, subsequently, to propose new treatments.	through study duration (through study duration (up to 14 years) )
Establish the natural history of spino-cerebellar degeneration	Investigators intended to follow the clinical status of this cohort of patients for 7 years, by assessing the progression of the pathology each year with a neurological exam	Year 1 to Year 7

Collaborators and Investigators

• Sponsor: Institut National de la Santé Et de la Recherche Médicale, France
• Collaborators: National Research Agency, France; Institut des Maladies Rares; Paris Brain Institute (ICM)
• Investigators: Principal Investigator: Alessandro Filla, MD, PhD, Federico II University; Principal Investigator: André Mégarbané, MD, Université Saint-Joseph; Principal Investigator: Ali Benomar, MD, PhD, CHU de Rabat; Principal Investigator: Christophe Verny, MD, University Hospital, Angers; Principal Investigator: Diana Rodriguez, MD, Assistance Publique - Hôpitaux de Paris; Principal Investigator: Enrico Bertini, MD, Università de Roma; Principal Investigator: François Tison, MD, PhD, Hôpitaux de Bordeaux; Principal Investigator: Jorgen E Nielsen, MD, PhD, The Panum Institute; Principal Investigator: Mustapha Salih, MD, College of Medicine and KKUH; Principal Investigator: Miriem Tazir, MD, PhD, Université d'Alger; Principal Investigator: Nicholas W Wood, MD, PhD, Institute of Neurology; Principal Investigator: Odile Boespflug-Tanguy, MD, PhD, Hôpitaux de Clermont-Ferrand; Principal Investigator: Paula Coutinho, MD, PhD, Universidade do Porto; Principal Investigator: Thomas T Warner, MD, PhD, University College, London; Principal Investigator: Alexander Lossos, MD, Hadassah-Hebrew University Hospital; Principal Investigator: Cyril Goizet, MD, PhD, Hôpital Pellegrin; Principal Investigator: Patrick Calvas, MD, PhD, Hopital Purpan; Principal Investigator: Berry Kremer, MD, Radboud University Medical Center; Principal Investigator: Vladimir Kostic, MD, Clinical Centre of Serbia; Principal Investigator: Chokri Mhiri, MD, Hôpital Habib Bourguiba; Principal Investigator: Massimo Pandolfo, MD, PhD, Université Libre de Bruxelles - Hôpital Erasme; Principal Investigator: Jorge Sequeiros, MD, PhD, Universidade do Porto; Principal Investigator: Chantal ME Tallaksen, MD, PhD, Ullevaal University Hospital; Principal Investigator: Alexandra Dürr, MD, PhD, Assistance Publique - Hôpitaux de Paris; Principal Investigator: Didier Hannequin, MD, PhD, Hôpitaux de Rouen; Principal Investigator: Jean-Philippe Azulay, MD, PhD, assistance publique - hôpitaux de Marseille; Principal Investigator: Pierre Labauge, MD, PhD, Hôpitaux de Nîmes; Principal Investigator: Pierre Pollak, MD, PhD, Hôpitaux de Grenoble

Publications and helpful links

General Publications

• Moreira MC, Klur S, Watanabe M, Nemeth AH, Le Ber I, Moniz JC, Tranchant C, Aubourg P, Tazir M, Schols L, Pandolfo M, Schulz JB, Pouget J, Calvas P, Shizuka-Ikeda M, Shoji M, Tanaka M, Izatt L, Shaw CE, M'Zahem A, Dunne E, Bomont P, Benhassine T, Bouslam N, Stevanin G, Brice A, Guimaraes J, Mendonca P, Barbot C, Coutinho P, Sequeiros J, Durr A, Warter JM, Koenig M. Senataxin, the ortholog of a yeast RNA helicase, is mutant in ataxia-ocular apraxia 2. Nat Genet. 2004 Mar;36(3):225-7. doi: 10.1038/ng1303. Epub 2004 Feb 8.
• Le Ber I, Bouslam N, Rivaud-Pechoux S, Guimaraes J, Benomar A, Chamayou C, Goizet C, Moreira MC, Klur S, Yahyaoui M, Agid Y, Koenig M, Stevanin G, Brice A, Durr A. Frequency and phenotypic spectrum of ataxia with oculomotor apraxia 2: a clinical and genetic study in 18 patients. Brain. 2004 Apr;127(Pt 4):759-67. doi: 10.1093/brain/awh080. Epub 2004 Jan 21.
• Le Ber I, Moreira MC, Rivaud-Pechoux S, Chamayou C, Ochsner F, Kuntzer T, Tardieu M, Said G, Habert MO, Demarquay G, Tannier C, Beis JM, Brice A, Koenig M, Durr A. Cerebellar ataxia with oculomotor apraxia type 1: clinical and genetic studies. Brain. 2003 Dec;126(Pt 12):2761-72. doi: 10.1093/brain/awg283. Epub 2003 Sep 23.
• Le Ber I, Camuzat A, Castelnovo G, Azulay JP, Genton P, Gastaut JL, Broglin D, Labauge P, Brice A, Durr A. Prevalence of dentatorubral-pallidoluysian atrophy in a large series of white patients with cerebellar ataxia. Arch Neurol. 2003 Aug;60(8):1097-9. doi: 10.1001/archneur.60.8.1097.
• Bouslam N, Benomar A, Azzedine H, Bouhouche A, Namekawa M, Klebe S, Charon C, Durr A, Ruberg M, Brice A, Yahyaoui M, Stevanin G. Mapping of a new form of pure autosomal recessive spastic paraplegia (SPG28). Ann Neurol. 2005 Apr;57(4):567-71. doi: 10.1002/ana.20416.
• Durr A, Camuzat A, Colin E, Tallaksen C, Hannequin D, Coutinho P, Fontaine B, Rossi A, Gil R, Rousselle C, Ruberg M, Stevanin G, Brice A. Atlastin1 mutations are frequent in young-onset autosomal dominant spastic paraplegia. Arch Neurol. 2004 Dec;61(12):1867-72. doi: 10.1001/archneur.61.12.1867.
• Stevanin G, Durr A, Dussert C, Penet C, Brice A. Mutations in the FGF14 gene are not a major cause of spinocerebellar ataxia in Caucasians. Neurology. 2004 Sep 14;63(5):936. doi: 10.1212/01.wnl.0000137020.30604.1e. No abstract available.
• Stevanin G, Hahn V, Lohmann E, Bouslam N, Gouttard M, Soumphonphakdy C, Welter ML, Ollagnon-Roman E, Lemainque A, Ruberg M, Brice A, Durr A. Mutation in the catalytic domain of protein kinase C gamma and extension of the phenotype associated with spinocerebellar ataxia type 14. Arch Neurol. 2004 Aug;61(8):1242-8. doi: 10.1001/archneur.61.8.1242.
• Stevanin G, Bouslam N, Thobois S, Azzedine H, Ravaux L, Boland A, Schalling M, Broussolle E, Durr A, Brice A. Spinocerebellar ataxia with sensory neuropathy (SCA25) maps to chromosome 2p. Ann Neurol. 2004 Jan;55(1):97-104. doi: 10.1002/ana.10798.
• Tallaksen CM, Guichart-Gomez E, Verpillat P, Hahn-Barma V, Ruberg M, Fontaine B, Brice A, Dubois B, Durr A. Subtle cognitive impairment but no dementia in patients with spastin mutations. Arch Neurol. 2003 Aug;60(8):1113-8. doi: 10.1001/archneur.60.8.1113.
• Fernet M, Gribaa M, Salih MA, Seidahmed MZ, Hall J, Koenig M. Identification and functional consequences of a novel MRE11 mutation affecting 10 Saudi Arabian patients with the ataxia telangiectasia-like disorder. Hum Mol Genet. 2005 Jan 15;14(2):307-18. doi: 10.1093/hmg/ddi027. Epub 2004 Dec 1.
• Stevanin G, Durr A, Benammar N, Brice A. Spinocerebellar ataxia with mental retardation (SCA13). Cerebellum. 2005;4(1):43-6. doi: 10.1080/14734220510007923.
• Stevanin G, Broussolle E, Streichenberger N, Kopp N, Brice A, Durr A. Spinocerebellar ataxia with sensory neuropathy (SCA25). Cerebellum. 2005;4(1):58-61. doi: 10.1080/14734220510007932.
• Klebe S, Durr A, Rentschler A, Hahn-Barma V, Abele M, Bouslam N, Schols L, Jedynak P, Forlani S, Denis E, Dussert C, Agid Y, Bauer P, Globas C, Wullner U, Brice A, Riess O, Stevanin G. New mutations in protein kinase Cgamma associated with spinocerebellar ataxia type 14. Ann Neurol. 2005 Nov;58(5):720-9. doi: 10.1002/ana.20628.
• Latouche M, Fragner P, Martin E, El Hachimi KH, Zander C, Sittler A, Ruberg M, Brice A, Stevanin G. Polyglutamine and polyalanine expansions in ataxin7 result in different types of aggregation and levels of toxicity. Mol Cell Neurosci. 2006 Mar;31(3):438-45. doi: 10.1016/j.mcn.2005.10.013. Epub 2005 Dec 1.
• Namekawa M, Ribai P, Nelson I, Forlani S, Fellmann F, Goizet C, Depienne C, Stevanin G, Ruberg M, Durr A, Brice A. SPG3A is the most frequent cause of hereditary spastic paraplegia with onset before age 10 years. Neurology. 2006 Jan 10;66(1):112-4. doi: 10.1212/01.wnl.0000191390.20564.8e.
• van de Warrenburg BP, Hendriks H, Durr A, van Zuijlen MC, Stevanin G, Camuzat A, Sinke RJ, Brice A, Kremer BP. Age at onset variance analysis in spinocerebellar ataxias: a study in a Dutch-French cohort. Ann Neurol. 2005 Apr;57(4):505-12. doi: 10.1002/ana.20424.
• Biancalana V, Toft M, Le Ber I, Tison F, Scherrer E, Thibodeau S, Mandel JL, Brice A, Farrer MJ, Durr A. FMR1 premutations associated with fragile X-associated tremor/ataxia syndrome in multiple system atrophy. Arch Neurol. 2005 Jun;62(6):962-6. doi: 10.1001/archneur.62.6.962.
• Ribaï P, Stevanin G, Trefouret S, Nelson I, Soumphonphakdy C, Pouget J, Dürr A, Brice A. Extension of the SPG26 phenotype in a Spanish family and refinement of its locus on chromosome 12. Eletter, Journal of Medical Genetics 42(1):80-82, 2005.
• Elleuch N, Depienne C, Benomar A, Hernandez AM, Ferrer X, Fontaine B, Grid D, Tallaksen CM, Zemmouri R, Stevanin G, Durr A, Brice A. Mutation analysis of the paraplegin gene (SPG7) in patients with hereditary spastic paraplegia. Neurology. 2006 Mar 14;66(5):654-9. doi: 10.1212/01.wnl.0000201185.91110.15.
• Le Ber I, Rivaud-Pechoux S, Brice A, Durr A. [Autosomal recessive cerebellar ataxias with oculomotor apraxia]. Rev Neurol (Paris). 2006 Feb;162(2):177-84. doi: 10.1016/s0035-3787(06)74997-9. French.
• Namekawa M, Nelson I, Ribai P, Durr A, Denis E, Stevanin G, Ruberg M, Brice A. A founder effect and mutational hot spots may contribute to the most frequent mutations in the SPG3A gene. Neurogenetics. 2006 May;7(2):131-2. doi: 10.1007/s10048-006-0028-2. Epub 2006 Apr 13. No abstract available.
• Lossos A, Stevanin G, Meiner V, Argov Z, Bouslam N, Newman JP, Gomori JM, Klebe S, Lerer I, Elleuch N, Silverstein S, Durr A, Abramsky O, Ben-Nariah Z, Brice A. Hereditary spastic paraplegia with thin corpus callosum: reduction of the SPG11 interval and evidence for further genetic heterogeneity. Arch Neurol. 2006 May;63(5):756-60. doi: 10.1001/archneur.63.5.756.
• Klebe S, Azzedine H, Durr A, Bastien P, Bouslam N, Elleuch N, Forlani S, Charon C, Koenig M, Melki J, Brice A, Stevanin G. Autosomal recessive spastic paraplegia (SPG30) with mild ataxia and sensory neuropathy maps to chromosome 2q37.3. Brain. 2006 Jun;129(Pt 6):1456-62. doi: 10.1093/brain/awl012. Epub 2006 Jan 24.
• Ribai P, Stevanin G, Bouslam N, Pontier B, Nelson I, Fontaine B, Dussert C, Charon C, Durr A, Brice A. A new phenotype linked to SPG27 and refinement of the critical region on chromosome. J Neurol. 2006 Jun;253(6):714-9. doi: 10.1007/s00415-006-0094-2. Epub 2006 Mar 6.
• Le Ber I, Clot F, Vercueil L, Camuzat A, Viemont M, Benamar N, De Liege P, Ouvrard-Hernandez AM, Pollak P, Stevanin G, Brice A, Durr A. Predominant dystonia with marked cerebellar atrophy: a rare phenotype in familial dystonia. Neurology. 2006 Nov 28;67(10):1769-73. doi: 10.1212/01.wnl.0000244484.60489.50.
• Stevanin G, Montagna G, Azzedine H, Valente EM, Durr A, Scarano V, Bouslam N, Cassandrini D, Denora PS, Criscuolo C, Belarbi S, Orlacchio A, Jonveaux P, Silvestri G, Hernandez AM, De Michele G, Tazir M, Mariotti C, Brockmann K, Malandrini A, van der Knapp MS, Neri M, Tonekaboni H, Melone MA, Tessa A, Dotti MT, Tosetti M, Pauri F, Federico A, Casali C, Cruz VT, Loureiro JL, Zara F, Forlani S, Bertini E, Coutinho P, Filla A, Brice A, Santorelli FM. Spastic paraplegia with thin corpus callosum: description of 20 new families, refinement of the SPG11 locus, candidate gene analysis and evidence of genetic heterogeneity. Neurogenetics. 2006 Jul;7(3):149-56. doi: 10.1007/s10048-006-0044-2. Epub 2006 May 13.
• Klebe S, Lacour A, Durr A, Stojkovic T, Depienne C, Forlani S, Poea-Guyon S, Vuillaume I, Sablonniere B, Vermersch P, Brice A, Stevanin G. NIPA1 (SPG6) mutations are a rare cause of autosomal dominant spastic paraplegia in Europe. Neurogenetics. 2007 Apr;8(2):155-7. doi: 10.1007/s10048-006-0074-9. Epub 2007 Jan 5. No abstract available.
• Bouslam N, Bouhouche A, Benomar A, Hanein S, Klebe S, Azzedine H, Di Giandomenico S, Boland-Auge A, Santorelli FM, Durr A, Brice A, Yahyaoui M, Stevanin G. A novel locus for autosomal recessive spastic ataxia on chromosome 17p. Hum Genet. 2007 May;121(3-4):413-20. doi: 10.1007/s00439-007-0328-0. Epub 2007 Feb 2.
• Stevanin G, Santorelli FM, Azzedine H, Coutinho P, Chomilier J, Denora PS, Martin E, Ouvrard-Hernandez AM, Tessa A, Bouslam N, Lossos A, Charles P, Loureiro JL, Elleuch N, Confavreux C, Cruz VT, Ruberg M, Leguern E, Grid D, Tazir M, Fontaine B, Filla A, Bertini E, Durr A, Brice A. Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum. Nat Genet. 2007 Mar;39(3):366-72. doi: 10.1038/ng1980. Epub 2007 Feb 18.
• Latouche M, Lasbleiz C, Martin E, Monnier V, Debeir T, Mouatt-Prigent A, Muriel MP, Morel L, Ruberg M, Brice A, Stevanin G, Tricoire H. A conditional pan-neuronal Drosophila model of spinocerebellar ataxia 7 with a reversible adult phenotype suitable for identifying modifier genes. J Neurosci. 2007 Mar 7;27(10):2483-92. doi: 10.1523/JNEUROSCI.5453-06.2007.
• Klebe S, Durr A, Bouslam N, Grid D, Paternotte C, Depienne C, Hanein S, Bouhouche A, Elleuch N, Azzedine H, Poea-Guyon S, Forlani S, Denis E, Charon C, Hazan J, Brice A, Stevanin G. Spastic paraplegia 5: Locus refinement, candidate gene analysis and clinical description. Am J Med Genet B Neuropsychiatr Genet. 2007 Oct 5;144B(7):854-61. doi: 10.1002/ajmg.b.30518.
• Stevanin G, Paternotte C, Coutinho P, Klebe S, Elleuch N, Loureiro JL, Denis E, Cruz VT, Durr A, Prud'homme JF, Weissenbach J, Brice A, Hazan J. A new locus for autosomal recessive spastic paraplegia (SPG32) on chromosome 14q12-q21. Neurology. 2007 May 22;68(21):1837-40. doi: 10.1212/01.wnl.0000262043.53386.22.
• Namekawa M, Muriel MP, Janer A, Latouche M, Dauphin A, Debeir T, Martin E, Duyckaerts C, Prigent A, Depienne C, Sittler A, Brice A, Ruberg M. Mutations in the SPG3A gene encoding the GTPase atlastin interfere with vesicle trafficking in the ER/Golgi interface and Golgi morphogenesis. Mol Cell Neurosci. 2007 May;35(1):1-13. doi: 10.1016/j.mcn.2007.01.012. Epub 2007 Jan 26.
• Stevanin G, Azzedine H, Denora P, Boukhris A, Tazir M, Lossos A, Rosa AL, Lerer I, Hamri A, Alegria P, Loureiro J, Tada M, Hannequin D, Anheim M, Goizet C, Gonzalez-Martinez V, Le Ber I, Forlani S, Iwabuchi K, Meiner V, Uyanik G, Erichsen AK, Feki I, Pasquier F, Belarbi S, Cruz VT, Depienne C, Truchetto J, Garrigues G, Tallaksen C, Tranchant C, Nishizawa M, Vale J, Coutinho P, Santorelli FM, Mhiri C, Brice A, Durr A; SPATAX consortium. Mutations in SPG11 are frequent in autosomal recessive spastic paraplegia with thin corpus callosum, cognitive decline and lower motor neuron degeneration. Brain. 2008 Mar;131(Pt 3):772-84. doi: 10.1093/brain/awm293. Epub 2007 Dec 13.
• Boukhris A, Feki I, Denis E, Miladi MI, Brice A, Mhiri C, Stevanin G. Spastic paraplegia 15: linkage and clinical description of three Tunisian families. Mov Disord. 2008 Feb 15;23(3):429-33. doi: 10.1002/mds.21848.
• Boukhris A, Stevanin G, Feki I, Denis E, Elleuch N, Miladi MI, Truchetto J, Denora P, Belal S, Mhiri C, Brice A. Hereditary spastic paraplegia with mental impairment and thin corpus callosum in Tunisia: SPG11, SPG15, and further genetic heterogeneity. Arch Neurol. 2008 Mar;65(3):393-402. doi: 10.1001/archneur.65.3.393.
• Hanein S, Martin E, Boukhris A, Byrne P, Goizet C, Hamri A, Benomar A, Lossos A, Denora P, Fernandez J, Elleuch N, Forlani S, Durr A, Feki I, Hutchinson M, Santorelli FM, Mhiri C, Brice A, Stevanin G. Identification of the SPG15 gene, encoding spastizin, as a frequent cause of complicated autosomal-recessive spastic paraplegia, including Kjellin syndrome. Am J Hum Genet. 2008 Apr;82(4):992-1002. doi: 10.1016/j.ajhg.2008.03.004.
• Denora PS, Schlesinger D, Casali C, Kok F, Tessa A, Boukhris A, Azzedine H, Dotti MT, Bruno C, Truchetto J, Biancheri R, Fedirko E, Di Rocco M, Bueno C, Malandrini A, Battini R, Sickl E, de Leva MF, Boespflug-Tanguy O, Silvestri G, Simonati A, Said E, Ferbert A, Criscuolo C, Heinimann K, Modoni A, Weber P, Palmeri S, Plasilova M, Pauri F, Cassandrini D, Battisti C, Pini A, Tosetti M, Hauser E, Masciullo M, Di Fabio R, Piccolo F, Denis E, Cioni G, Massa R, Della Giustina E, Calabrese O, Melone MA, De Michele G, Federico A, Bertini E, Durr A, Brockmann K, van der Knaap MS, Zatz M, Filla A, Brice A, Stevanin G, Santorelli FM. Screening of ARHSP-TCC patients expands the spectrum of SPG11 mutations and includes a large scale gene deletion. Hum Mutat. 2009 Mar;30(3):E500-19. doi: 10.1002/humu.20945.
• Denora PS, Muglia M, Casali C, Truchetto J, Silvestri G, Messina D, Boukrhis A, Magariello A, Modoni A, Masciullo M, Malandrini A, Morelli M, de Leva MF, Villanova M, Giugni E, Citrigno L, Rizza T, Federico A, Pierallini A, Quattrone A, Filla A, Brice A, Stevanin G, Santorelli FM. Spastic paraplegia with thinning of the corpus callosum and white matter abnormalities: further mutations and relative frequency in ZFYVE26/SPG15 in the Italian population. J Neurol Sci. 2009 Feb 15;277(1-2):22-5. doi: 10.1016/j.jns.2008.09.039. Epub 2008 Dec 13.
• Boukhris A, Stevanin G, Feki I, Denora P, Elleuch N, Miladi MI, Goizet C, Truchetto J, Belal S, Brice A, Mhiri C. Tunisian hereditary spastic paraplegias: clinical variability supported by genetic heterogeneity. Clin Genet. 2009 Jun;75(6):527-36. doi: 10.1111/j.1399-0004.2009.01176.x. Epub 2009 May 5.
• Anheim M, Lagier-Tourenne C, Stevanin G, Fleury M, Durr A, Namer IJ, Denora P, Brice A, Mandel JL, Koenig M, Tranchant C. SPG11 spastic paraplegia. A new cause of juvenile parkinsonism. J Neurol. 2009 Jan;256(1):104-8. doi: 10.1007/s00415-009-0083-3. Epub 2009 Feb 9.
• Goizet C, Boukhris A, Durr A, Beetz C, Truchetto J, Tesson C, Tsaousidou M, Forlani S, Guyant-Marechal L, Fontaine B, Guimaraes J, Isidor B, Chazouilleres O, Wendum D, Grid D, Chevy F, Chinnery PF, Coutinho P, Azulay JP, Feki I, Mochel F, Wolf C, Mhiri C, Crosby A, Brice A, Stevanin G. CYP7B1 mutations in pure and complex forms of hereditary spastic paraplegia type 5. Brain. 2009 Jun;132(Pt 6):1589-600. doi: 10.1093/brain/awp073. Epub 2009 May 12.
• Goizet C, Boukhris A, Maltete D, Guyant-Marechal L, Truchetto J, Mundwiller E, Hanein S, Jonveaux P, Roelens F, Loureiro J, Godet E, Forlani S, Melki J, Auer-Grumbach M, Fernandez JC, Martin-Hardy P, Sibon I, Sole G, Orignac I, Mhiri C, Coutinho P, Durr A, Brice A, Stevanin G. SPG15 is the second most common cause of hereditary spastic paraplegia with thin corpus callosum. Neurology. 2009 Oct 6;73(14):1111-9. doi: 10.1212/WNL.0b013e3181bacf59.
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Study record dates

Study Major Dates

• Study Start (Actual): February 10, 2004
• Primary Completion (Actual): December 1, 2020
• Study Completion (Actual): December 30, 2020

Study Registration Dates

• First Submitted: August 25, 2005
• First Submitted That Met QC Criteria: August 30, 2005
• First Posted (Estimated): September 1, 2005

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: January 30, 2025
• Last Verified: January 1, 2025

More Information

Terms related to this study

• Keywords: Genetic counselling; Cerebellar ataxias; Spastic paraplegias; Mutations spectrum; Linkage studies
• Additional Relevant MeSH Terms: Neurologic Manifestations; Musculoskeletal Diseases; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Muscular Diseases; Muscle Hypertonia; Neuromuscular Manifestations; Dyskinesias; Paralysis; Cerebellar Diseases; Muscle Spasticity; Ataxia; Cerebellar Ataxia; Paraplegia
• Other Study ID Numbers: RBM01-29; DGS2005/003 (Registry Identifier: N° DGS)