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Clinical Trials/NCT00432341
NCT00432341TerminatedPhase 4

Efficacy and Safety of Two Different Botulinum Toxin Type A Treatments for Moderate to Severe Cervical Dystonia

Allergan3 sites in 3 countries54 target enrollmentStarted: June 1, 2007Last updated:
Conditions

Trial Snapshot

Phase
Phase 4
Status
Terminated
Sponsor
Allergan
Enrollment
54
Locations
3
Primary Endpoint
Duration of Treatment Benefit

Study Overview

Brief Summary

The purpose of this study is to compare two types of botulinum toxin type A to treat the involuntary muscle contractions in the neck

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Triple (Participant, Investigator, Outcomes Assessor)

Eligibility Criteria

Ages
18 Years to 75 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Diagnosed with cervical dystonia/spasmodic torticollis for at least 18 months
  • Successfully treated previously with botulinum toxin type A

Exclusion Criteria

  • Breast feeding, pregnant, or could become pregnant
  • Surgery or spinal cord stimulation for cervical dystonia
  • Previous injections of phenol, alcohol for cervical dystonia

Outcomes

Primary Outcomes

Duration of Treatment Benefit

Time Frame: 20 Weeks

Duration of treatment benefit was measured as the time (days) from Baseline until patients had a loss of therapeutic benefit, as defined by the achievement of their Toronto Western Spasmodic Torticollis Rating Scale Duration Target Score (TDTS) \[loss of 80% of benefit\].

Secondary Outcomes

  • Toronto Western Spasmodic Torticollis Rating Scale Duration Target Score (TDTS) at Week 4(Week 4)
  • Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) Total Score at Week 4(Baseline, Week 4)
  • Global Assessment of Benefit by Patient at Week 4(Week 4)
  • Global Assessment of Benefit by Physician at Week 4(Week 4)
  • Physician Assessment of Cervical Dystonia Severity at Week 4(Baseline, Week 4)
  • Physician Comparison of Benefit to Previous Injections at Week 20(Week 20)
  • Patient Comparison of Benefit to Previous Injections at Week 20(Week 20)
  • Patient Visual Analog Assessment of Pain at Week 4(Baseline, Week 4)
  • Patient Assessment of Need for Retreatment at Week 4(Baseline, Week 4)

Investigators

Sponsor
Allergan
Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (3)

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