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Phase IV-Cervical Dystonia-INTEREST IN CD2 (INTEREST_INCD2)

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Ipsen Identifier:
First received: December 17, 2012
Last updated: April 7, 2017
Last verified: April 2017
The purpose of the study is to document long-term response in real-life practice after injection cycles with BoNT-A in subjects suffering from idiopathic cervical dystonia (Long-term clinical and pharmaco-economic data).

Condition Intervention
Cervical Dystonia
Drug: BoNT-A injections, 3-4 times yearly

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: An International Observational Prospective Study On Long-Term Response To Botulinum Toxin Type A (BoNT-A) Injections In Subjects Suffering From Idiopathic Cervical Dystonia (CD) - Pharmaco-Economic Impact

Resource links provided by NLM:

Further study details as provided by Ipsen:

Primary Outcome Measures:
  • Change in subject's satisfaction using a 5-point Likert scale. [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
    Identification of prognostic factors for subject's satisfaction regarding control of symptoms associated with idiopathic CD.

Secondary Outcome Measures:
  • Change from baseline in Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) total score and severity sub-scale. [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
    Assessment of severity of CD.

  • Change in tremor associated with CD using Tsui score [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
  • Change in pain relief assessed using the TWSTRS pain sub-scale. [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
  • Change in disability will be measured with the TWSTRS disability sub-scale. [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
  • Pharmaco-economic endpoints [ Time Frame: Baseline and at every 3 to 4 months, up to 3 years. ]
    • Time intervals between injections
    • Changes in concomitant treatments for CD and associated symptoms.
    • Changes in employment status

Enrollment: 1050
Actual Study Start Date: December 2012
Estimated Study Completion Date: July 2017
Estimated Primary Completion Date: July 2017 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Idiopathic cervical dystonia
Adults subjects from Hospitals, Private Practices suffering idiopathic cervical dystonia.
Drug: BoNT-A injections, 3-4 times yearly


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Adult subjects from Hospitals, Private Practices suffering idiopathic cervical dystonia.

Inclusion Criteria:

  • Subject for whom there is an intention to treat with BoNT-A.
  • BoNT treatment naïve or previously treated with BoNT.
  • If previously treated with BoNT, at least a 12-week interval between the last injection (BoNT-A or BoNT-B) and inclusion.
  • Subject able to comply with the protocol.
  • Provision of written informed consent prior to collect the data.

Exclusion Criteria:

  • Contraindications to any BoNT-A preparations.
  • The subject has already been included in the study.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01753349

  Show 113 Study Locations
Sponsors and Collaborators
Study Director: Savary Om, M.D. Ipsen
  More Information

Responsible Party: Ipsen Identifier: NCT01753349     History of Changes
Other Study ID Numbers: Y-79-52120-166
Study First Received: December 17, 2012
Last Updated: April 7, 2017

Additional relevant MeSH terms:
Dystonic Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Movement Disorders
Central Nervous System Diseases
Neuromuscular Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Acetylcholine Release Inhibitors
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Cholinergic Agents
Neurotransmitter Agents processed this record on May 25, 2017