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Prospective Study Evaluating IncobotulinumtoxinA for Cervical Dystonia or Blepharospasm: Interim Results from the First 145 Subjects with Cervical Dystonia

Fernandez, Hubert H.; Pagan, Fernando; Danisi, Fabio; Greeley, David; Jankovic, Joseph; Verma, Amit; Sethi, Kapil; Pappert, Eric J.; XCiDaBLE Study Group

Background: We report the interim results from XCiDaBLE: A large prospective, observational "naturalistic" study evaluating Xeomin® (incobotulinumtoxinA) for cervical dystonia or blepharospasm in the United States.
Methods: Subjects with CD are followed for 2 treatment cycles and monitored via Interactive Voice/Web Response. Subject-reported scales include the Subject Global Impression-Severity and Improvement; Cervical Dystonia Impact Profile (CDIP-58); and Work Productivity and Quality of Life (QoL) are assessed by means of an employment questionnaire and work history and the SF-12v2.
Results: This ongoing study includes 145 subjects with a diagnosis of CD. The majority were female (82.3%) and White (91.0%) and had previously been treated with botulinum toxins (77.2%). There were 106 employed at the time of onset of the disease, but 12.6 years later only 44% were still employed at the time of enrolment into the study and 20% were either receiving or seeking disability benefits. However, only 44% were still employed at the time of recruitment for study participation. The mean total dose/treatment of CD was 225.2 units for the 1st injection. The CDIP-58 total score was significantly improved at four weeks post the first injection compared to baseline (p less than or equal to 0.0001). Most subjects noted improvement in their global impression assessment. No new or unexpected adverse events occurred.
Discussion: The results from these interim analyses confirm previous controlled single-dose studies of incobotulinumtoxinA in terms of efficacy and safety.

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Tremor and Other Hyperkinetic Movements

More About This Work

Academic Units
Center for Parkinson's Disease and Other Movement Disorders
Published Here
October 3, 2013
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