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Cervical DystoniaPhase 3NCT01753336

Long Term Safety And Effectiveness Of Dysport® In Adults With Cervical Dystonia

A Phase 3 study testing Botulinum toxin type A in people with Cervical Dystonia, run by Ipsen at 41 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the protocol is to assess the long term safety of repeat treatment cycles of Dysport® 500 U using 2 mL dilution scheme for the treatment of Cervical Dystonia. This is an extension study to study A-TL-52120-169 (hereafter referred to as Study 169). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cervical Dystonia
What is being tested?
Botulinum toxin type A
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
112 participants
Where
41 sitesUnited States
Study dates
Mar 2013to Oct 2015
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects enrolled in Study 169 that have no ongoing adverse events, which in the opinion of the Investigator are related to study treatment and that precludes them from receiving continuing therapy
  • Completed Study 169, or completed all study visits up to and including Week 4 and in the event of an early withdrawal after Week 4 have ≤15% reduction in TWSTRS total score at Week 4 compared to their baseline TWSTRS total score in the double-blind study, and in the Investigator's clinical judgment, would benefit from Dysport® for CD

Who cannot join

  • Diagnosis of pure retrocollis or pure anterocollis
  • Requirement for Botulinum Neurotoxin (BoNT) injection to site(s) for disorders other than CD and unable to avoid such treatment(s) for the duration of the study
  • Known hypersensitivity to BoNT or related compounds, or any component in the study drug formulation
  • Allergy to cow's milk protein
  • Myasthenia gravis, other disease of the neuromuscular junction or clinically significant, persistent neuromuscular weakness, or disease or symptoms that could interfere with the TWSTRS scoring
  • Total body weight <95 lbs (43.09 kg)
Show all 17Show fewer
  • Previous phenol injections to the neck muscles
  • Previous myotomy or denervation surgery involving the neck or shoulder region or deep brain stimulation to treat CD
  • Cervical contracture that limited passive range of motion
  • Physiotherapy initiated <4 weeks before study entry or expected to be initiated during the study
  • Treatment with aminoglycoside antibiotics within 30 days prior to study treatment
  • Current or expected requirement for concomitant medication that could interfere with the evaluation of study treatment
  • Pregnant and/or lactating females
  • Females of childbearing potential with a positive prestudy urine pregnancy test (a positive urine pregnancy test could be confirmed by a serum pregnancy test at the discretion of the investigator) and subjects, or their partners, who did not agree to use adequate contraception (hormonal or barrier method of birth control) prior to injection of study treatment and for the duration of study participation. Nonchildbearing potential is defined as postmenopause for at least 1 year, surgical sterilisation at least 3 months before entering the study, or hysterectomy
  • Individuals who had family or employee relationship to study site staff or sponsor staff involved in the conduct of the study
  • Any medical condition that could, as judged by the investigator, compromise compliance with the objectives and procedures of this protocol or preclude the administration of BoNT, including swallowing and other respiratory abnormality.
  • Subjects who were unable and/or unwilling to comply fully with the protocol and the study instructions, as judged by the investigator

Trial locations and contacts

41 sites in 1 country.

41 sites in 1 country

United States41 sites
  • Emory University

    Atlanta, Georgia, 30329

  • NeuroTrials Research Inc.

    Atlanta, Georgia, 30342

  • North Texas Movement Disorders Institute

    Bedford, Texas, 76201

  • East Bay Physician's Group

    Berkeley, California, 94705

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294

  • Parkinson's Disease and Movement Disorders Center of Boca Raton

    Boca Raton, Florida, 33486

  • Tufts Medical Center

    Boston, Massachusetts, 02111

  • Rush University Medical Center

    Chicago, Illinois, 60612

  • University of Cincinnati Physicians Company, LLC

    Cincinnati, Ohio, 45267

  • Rehabilitation Consultants, PA

    Eagan, Minnesota, 55121

  • Associated Neurologist of Southern CT, PC

    Fairfield, Connecticut, 06824

  • Advanced Neurosciences Research

    Fort Collins, Colorado, 80528

  • Parkinson's and Movement Disorder Institute

    Fountain Valley, California, 92708

  • University of Florida Center for Movement Disorders and Neurorestoration

    Gainesville, Florida, 32607

  • Guilford Neurologic Associates; Cone Health Medical Group

    Greensboro, North Carolina, 27405

  • Penn State Hershey Neurology

    Hershey, Pennsylvania, 17033

  • Baylor College of Medicine

    Houston, Texas, 77030

  • University of Texas Health Science Center at Houston

    Houston, Texas, 77030

  • Kansas City Bone & Joint Clinic

    Kansas City, Kansas, 66211

  • Kingston Neurological Associates

    Kingston, New York, 12401

  • Loma Linda University Healthcare, Department of Neurology

    Loma Linda, California, 92354

  • USC Keck School of Medicine

    Los Angeles, California, 90033

  • Yale Medical Group, Yale University

    New Haven, Connecticut, 06520

  • The Ichan School of Medicine at Mount Sinai

    New York, New York, 10029

  • International Clinical Research Institute

    Overland Park, Kansas, 66210

  • Emerald Coast Center for Neurological Disorders

    Pensacola, Florida, 32514

  • Island Neurological Associates

    Plainview, New York, 11803

  • Parkinson's Treatment Center of SW Florida

    Port Charlotte, Florida, 33980

  • Coastal Neurology, PA

    Port Royal, South Carolina, 29935

  • OHSU Center for Health and Healing

    Portland, Oregon, 97239

  • Sutter Cancer Center

    Sacramento, California, 95816

  • UC Davis Medical Center

    Sacramento, California, 95817

  • Movement Disorders Center of Arizona, LLC

    Scottsdale, Arizona, 85258

  • University of Medicine and Dentistry of New Jersey

    Stratford, New Jersey, 08084

  • Atlantic Neuroscience Institute

    Summit, New Jersey, 07901

  • Puget Sound Neurology

    Tacoma, Washington, 98409

  • USF HealthParkinson's Disease and Movement Disorders Center

    Tampa, Florida, 33613

  • University of Arizona

    Tucson, Arizona, 85724

  • Guilford Neurologic Associates

    West Palm Beach, Florida, 33407

  • Premiere Research Institute at Palm Beach Neurology

    West Palm Beach, Florida, 33407

  • Wake Forest School of Medicine

    Winston-Salem, North Carolina, 27157

Other trials in United States

About this study

Official title: A Phase IIIb, Prospective, Multicentre, Open-Label Extension Study To Assess Long Term Safety And Effectiveness Of Dysport® Using 2 mL Dilution In Adults With Cervical Dystonia

The purpose of the protocol is to assess the long term safety of repeat treatment cycles of Dysport® 500 U using 2 mL dilution scheme for the treatment of Cervical Dystonia. This is an extension study to study A-TL-52120-169 (hereafter referred to as Study 169).

Medical subject headings
Torticollis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Botulinum toxin type ABiological

    Also called AbobotulinumtoxinA (Dysport®)

    Dysport® (intramuscular injection), Up to 500 units (U)/vial using 2mL dilution, 3 treatment cycles

Study groups in NCT01753336
Study groupRoleWhat they receive
Dysport®ExperimentalDysport®, up to 500 units (U)/vial using 2mL dilution
Receives: Biological: Botulinum toxin type A

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. TWSTRS Total Score at Week 4 and Week 12 for Treatment Cycles 1, 2 and 3.

    Mean TWSTRS total scores for Week 4 and Week 12 of treatment cycles 1, 2 and 3 are presented. The mean differences in the TWSTRS total scores from treatment cycle baseline (defined as Day 1 in each cycle) at the Week 4 and Week 12 visits for Treatment Cycles 1, 2 and 3 are also presented. 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 at baseline and at all post-treatment visits of each treatment cycle.

    Measured: Week 4 and 12 of treatment cycles 1, 2 and 3 (12 - 16 weeks duration each)

Secondary outcomes (5)
  1. TWSTRS Total Scores at Pretreatment Baseline, Week 4 and Week 12 for Treatment Cycles 1, 2 and 3.

    The pretreatment baseline scores were defined as the TWSTRS measurement before Dysport® treatment in Study 169 for subjects who had received Dysport® in Study 169 and Day 1 of Study 170 for those subjects who had received placebo. Mean TWSTRS total scores for pretreatment baseline and for Week 4 and Week 12 of treatment cycles 1, 2 and 3 are presented. The mean differences in the TWSTRS total scores from pretreatment baseline scores at Week 4 and Week 12 of each treatment cycle are also presented. 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 for Studies 169 and 170 and at all post-treatment visits of each treatment cycle.

    Measured: Week 4 and 12 of treatment cycles 1, 2 and 3 (12 - 16 weeks duration each)

  2. Treatment Response in Treatment Cycle 3 Week 4.

    Treatment response was defined as a reduction in the TWSTRS total score of at least 30% from pretreatment baseline to the Week 4 visit in Treatment Cycle 3. The pretreatment baseline scores were defined as the TWSTRS measurement before Dysport® treatment in Study 169 for subjects who had previously received Dysport® in Study 169 and Day 1 of Study 170 for those subjects who had previously received placebo. 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 for Studies 169 and 170 and at all post-treatment visits of each treatment cycle. The proportion (percentage) of subjects who were treatment responders at Week 4 of Treatment Cycle 3 are presented.

    Measured: Week 4 Treatment Cycle 3

  3. TWSTRS Severity Subscale Score at Week 4 and Week 12 for Treatment Cycles 1, 2 and 3.

    Mean TWSTRS severity subscale scores for Week 4 and Week 12 of treatment cycles 1, 2 and 3 are presented. The mean differences in the TWSTRS severity subscale scores from treatment cycle baseline (defined as Day 1 in each cycle) at the Week 4 and Week 12 visits for treatment cycles 1, 2 and 3 are also presented. 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 severity subscale gives a score from 0 to 35, with higher values indicating a worse outcome of physical findings of CD. The score was assessed by the investigator at baseline and at all post-treatment visits of each treatment cycle.

    Measured: Weeks 4 and 12 of treatment cycle 1, 2 and 3 (12 - 16 weeks duration each)

  4. TWSTRS Disability Subscale Score at Week 4 and Week 12 for Treatment Cycles 1, 2 and 3.

    Mean TWSTRS disability subscale scores for Week 4 and Week 12 of treatment cycles 1, 2 and 3 are presented. The mean difference in the TWSTRS disability subscale scores from treatment cycle baseline (defined as Day 1 in each cycle) at the Week 4 and Week 12 visits for Treatment Cycles 1, 2 and 3 are also presented. 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 disability subscale is a 6-item scale and each item is rated on a 6-point scale with higher values indicating the highest degree of disability. The score was assessed by the investigator at baseline and at all post-treatment visits of each treatment cycle.

    Measured: Weeks 4 and 12 of treatment cycle 1, 2 and 3 (12 - 16 weeks duration each)

  5. TWSTRS Pain Subscale Score at Week 4 and Week 12 for Treatment Cycles 1, 2 and 3.

    Mean TWSTRS pain subscale scores for Week 4 and Week 12 of treatment cycles 1, 2 and 3 are presented. The mean difference in the TWSTRS pain subscale scores from treatment cycle baseline (defined as Day 1 in each cycle) at the Week 4 and Week 12 visits for Treatment Cycles 1, 2 and 3 are also presented. 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 pain subscale gives a score from 0 to 20, with higher values indicating greater pain experienced. The score was assessed by the investigator at baseline and at all post-treatment visits of each treatment cycle.

    Measured: Week 4 and 12 of treatment cycles 1, 2 and 3 (12 - 16 weeks duration each)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Dec 2012 (estimated)
  2. Study startMar 2013
  3. Primary completionOct 2015
  4. Study completionOct 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
112 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01753336
Sponsor's protocol ID
A-TL-52120-170
Status last verified
Jul 2019
First submitted
17 Dec 2012
Last updated
7 Aug 2019
Data monitoring committee
No

Publications

  • Dashtipour K, Wietek S, Rubin B, Maisonobe P, Bahroo L, Trosch R. AbobotulinumtoxinA using 2-mL dilution (500 U/2-mL) maintains durable improvement across multiple treatment cycles. J Clin Mov Disord. 2020 Aug 31;7:8. doi: 10.1186/s40734-020-00090-x. eCollection 2020.

    PubMed 32884828

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Botulinum toxin type A in people with Cervical Dystonia, run by Ipsen at 41 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 41 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 May 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

TWSTRS Total Score at Week 4 and Week 12 for Treatment Cycles 1, 2 and 3. (time frame: Week 4 and 12 of treatment cycles 1, 2 and 3 (12 - 16 weeks duration each)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01753336, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Aug 2019.

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