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Dystonia Coalition Projects


Natural History and Biospecimen Repository for Dystonia; Comprehensive Rating Tools for Cervical Dystonia; Validity & Reliability of Diagnostic Methods & Measures of Spasmodic Dysphonia




Dystonia is a disorder characterized by excessive involuntary contraction of muscles with repetitive and patterned movements. The primary focal dystonias are the most common type of dystonia and include Limb dystonias (like writer`s cramp), Cervical dystonia (spasmodic torticollis), Laryngeal dystonias (like spasmodic dysphonia), and Craniofacial dystonias (like blepharospasm). The purpose of this study is to create resources to help learn more about the primary focal dystonias and to develop and validate various dystonia rating scales.

Study Status: Recruiting


Condition Intervention Phase
Voice Disorders
n/a N/A

Verified by Hyder A. Jinnah, MD, PhD November, 2013

Sponsored by: Hyder A. Jinnah, MD, PhD
Information provided by: Emory University identifier: NCT01373424

Study Type: Interventional

Study Design: N/A

Cleveland Clinic Foundation
Cleveland, Ohio 44195
United States

H. A. Jinnah, MD, PhD., Principal Investigator

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