Efficacy and Safety of DYSPORT® Using 2mL Dilution in Adults With Cervical Dystonia.

July 25, 2019 updated by: Ipsen

A Phase 3b, Multicentre, Randomised, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of DYSPORT® Using 2mL Dilution in Adults With Cervical Dystonia.

The purpose of the protocol is to evaluate the efficacy and safety of Dysport® using 2 mL dilution compared with placebo for the treatment of Cervical Dystonia.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
134

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35294
        • University of Alabama at Birmingham
    • Arizona
      • Scottsdale, Arizona, United States, 85258
        • Movement Disorders Center of Arizona, LLC
      • Tucson, Arizona, United States, 85724
        • University of Arizona
    • California
      • Berkeley, California, United States, 94705
        • East Bay Physician's Group
      • Fountain Valley, California, United States, 92708
        • Parkinson's and Movement Disorder Institute
      • Loma Linda, California, United States, 92354
        • Loma Linda University Healthcare, Department of Neurology
      • Los Angeles, California, United States, 90033
        • USC Keck School of Medicine
      • Sacramento, California, United States, 95817
        • UC Davis Medical Center
    • Colorado
      • Aurora, Colorado, United States, 80045
        • University of Colorado at Denver Health Sciences
      • Fort Collins, Colorado, United States, 80528
        • Advanced Neurosciences Research
    • Connecticut
      • Fairfield, Connecticut, United States, 06824
        • Associated Neurologists of Southern Connecticut
    • District of Columbia
      • Washington, District of Columbia, United States, 20007
        • Georgetown University Hospital
    • Florida
      • Boca Raton, Florida, United States, 33486
        • Parkinson's & Movement Disorders Center of Boca Raton
      • Gainesville, Florida, United States, 32607
        • University of Florida Center for Movement Disorders and Neurorestoration
      • Pensacola, Florida, United States, 32514
        • Emerald Coast Center For Neurological Disorders
      • Port Charlotte, Florida, United States, 33980
        • PD Treatment Center of SW FL
      • Tampa, Florida, United States, 33606
        • University of South Florida
      • West Palm Beach, Florida, United States, 33407
        • Premiere Research Institute at Palm Beach Neurology
      • West Palm Beach, Florida, United States, 33407
        • Guilford Neurologic Associates
    • Georgia
      • Atlanta, Georgia, United States, 30329
        • Emory University
      • Atlanta, Georgia, United States, 30342
        • NeuroTrials Research Inc.
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Rush University Medical Center
    • Kansas
      • Kansas City, Kansas, United States, 66211
        • Kansas City Bone & Joint Clinic
      • Overland Park, Kansas, United States, 66210
        • International Clinical Research Institute
    • Massachusetts
      • Boston, Massachusetts, United States, 02111
        • Tufts Medical Center
    • Minnesota
      • Eagan, Minnesota, United States, 55122
        • Rehabilitation Consultants PA
    • New Jersey
      • Stratford, New Jersey, United States, 08084
        • University of Medicine and Dentistry of New Jersey
      • Summit, New Jersey, United States, 07901
        • Atlantic Neuroscience Institute
    • New York
      • Kingston, New York, United States, 12401
        • Kingston Neurological Associates
      • New York, New York, United States, 10029
        • The Ichan School of Medicine at Mount Sinai
      • New York, New York, United States, 10016
        • Fazzini Parkinson's Disease & Dystonia Center
      • Plainview, New York, United States, 11803
        • Island Neurological Associates
    • North Carolina
      • Greensboro, North Carolina, United States, 27405
        • Guilford Neurologic Associates; Cone Health Medical Group
      • Winston-Salem, North Carolina, United States, 27157
        • Wake Forest School of Medicine
    • Ohio
      • Cincinnati, Ohio, United States, 45267
        • University of Cincinnati Physicians Company, LLC
    • Oregon
      • Portland, Oregon, United States, 97239
        • OHSU Center for Health and Healing
    • Pennsylvania
      • Hershey, Pennsylvania, United States, 17033
        • Penn State Hershey Neurology
    • South Carolina
      • Port Royal, South Carolina, United States, 29935
        • Coastal Neurology
    • Texas
      • Bedford, Texas, United States, 76201
        • North Texas Movement Disorders Institute
      • Houston, Texas, United States, 77030
        • Baylor College of Medicine
      • Houston, Texas, United States, 77030
        • University of Texas Health Science Center at Houston
    • Washington
      • Tacoma, Washington, United States, 98409
        • Puget Sound Neurology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Primary diagnosis of Cervical Dystonia at least 9 months since onset and either previously untreated with botulinum toxin or currently treated with Botox at a total dosing range of 100-200 U and ≤60 U in the sternocleidomastoid muscle at the last injection cycle, and having had a satisfactory treatment response in the principal investigator's judgment during the last two sequential Botox treatment cycles.
  • TWSTRS total score≥ 20; TWSTRS-severity subscale score> 10;

Exclusion Criteria:

  • In apparent remission from Cervical Dystonia
  • Diagnosis of pure retrocollis or pure anterocollis
  • For non-naïve subjects, previous poor response to either of the last two Botox treatments
  • Known requirement of <100U or >200U of Botox injected into the neck muscles

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Dysport®
Dysport® (intramuscular injection), between 250 and 500 units (U)/vial using 2mL dilution, 1 cycle only
Biological: Botulinum toxin type A
Intramuscular injection, between 250 and 500 units (U)/vial using 2mL dilution, 1 cycle only
Other Names:
  • AbobotulinumtoxinA (Dysport®)
Placebo Comparator: Placebo
Placebo, up to 2mL
Drug: Placebo
Up to 2mL

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change From Baseline in Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) Total Score at Week 4.
Time Frame: 4 weeks post-treatment
The change from baseline in the TWSTRS total score at Week 4 was determined for the subjects who received a single dose of Dysport® or placebo by intramuscular injection at the baseline visit (Day 1), and is expressed as weighted overall treatment difference. The TWSTRS is an assessment scale used to measure the impact of CD on subjects, and comprises 3 subscales: severity, disability and pain, each of which is scored independently. The total score from the 3 subscales gives the TWSTRS total score with a value from 0 to 85 (best to worst). The score was assessed by the investigator prior to study treatment at baseline and at all post-treatment visits.
4 weeks post-treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change From Baseline in TWSTRS Total Score at Week 2.
Time Frame: 2 weeks post-treatment
The change from baseline in the TWSTRS total score at Week 2 was determined for the subjects who received a single dose of Dysport® or placebo by intramuscular injection at the baseline visit (Day 1), and is expressed as weighted overall treatment difference. The TWSTRS is an assessment scale used to measure the impact of CD on subjects, and comprises 3 subscales: severity, disability and pain, each of which is scored independently. The total score from the 3 subscales gives the TWSTRS total score with a value from 0 to 85 (best to worst). The score was assessed by the investigator prior to study treatment at baseline and at all post-treatment visits.
2 weeks post-treatment
Change From Baseline in Clinical Global Impression of Change (CGIC) in CD at Week 2.
Time Frame: 2 weeks post-treatment
The CGIC is an investigator-reported assessment of the global clinical change in CD since study treatment administration. The CGIC uses a seven-point Likert scale ranging from +3 (very much improved) to -3 (very much worse), and was assessed by the investigator at the Week 2 and Week 4 visits.
2 weeks post-treatment
TWSTRS Responders at Week 2.
Time Frame: 2 weeks post-treatment
Treatment response was determined as the number of responders at Week 2 relative to the baseline TWSTRS total score. A treatment responder is defined as a subject who had at least a 30% reduction in the TWSTRS total score after treatment. This was calculated as ([Week 2 score - baseline score]/baseline score) * 100.
2 weeks post-treatment
Change From Baseline in CGIC in CD at Week 4.
Time Frame: 4 weeks post-treatment
The CGIC is an investigator-reported assessment of the global clinical change in CD since study treatment administration. The CGIC uses a seven-point Likert scale ranging from +3 (very much improved) to -3 (very much worse), and was assessed by the investigator at the Week 2 and Week 4 visits.
4 weeks post-treatment
TWSTRS Responders at Week 4.
Time Frame: 4 weeks post-treatment
Treatment response was determined as the number of responders at Week 4 relative to the baseline TWSTRS total score. A treatment responder is defined as a subject who had at least a 30% reduction in the TWSTRS total score after treatment. This was calculated as ([Week 4 score - baseline score]/baseline score) * 100.
4 weeks post-treatment
Change From Baseline in Cervical Dystonia Impact Profile-58 (CDIP-58) Total Score at Week 4.
Time Frame: 4 weeks post-treatment
The CDIP-58 scale is a subject-based rating scale measuring the health impact of CD measured in 8 health dimensions including head and neck symptoms, pain and discomfort, upper limb activities, walking, sleep, annoyance, mood and psychosocial functioning. Subscale scores were transformed to a common theoretical range of 0 (no impact) to 100 (most impact). Negative changes from the baseline total score indicate improvement in the impact of CD on health whereas postive changes indicate worsening.
4 weeks post-treatment
Change From Baseline in CDIP-58 Total Score at Week 2.
Time Frame: 2 weeks post-treatment
The CDIP-58 scale is a subject-based rating scale measuring the health impact of CD measured in 8 health dimensions including head and neck symptoms, pain and discomfort, upper limb activities, walking, sleep, annoyance, mood and psychosocial functioning. Subscale scores were transformed to a common theoretical range of 0 (no impact) to 100 (most impact). Negative changes from the baseline total score indicate improvement in the impact of CD on health whereas postive changes indicate worsening. The hierarchical testing procedure would only be conducted if the previous secondary efficacy endpoint (change from baseline in CDIP-58 total score at Week 4) reached a statistically significant treatment effect. This secondary efficacy endpoint (change from baseline in CDIP-58 total score at Week 2) was performed to characterise the full clinical effect.
2 weeks post-treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ipsen

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Medical Director, Neurology, M.D., Ipsen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2013

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 17, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 17, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 20, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 7, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 25, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A-TL-52120-169

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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