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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05327985
Other study ID # JBN_2022_1
Secondary ID
Status Active, not recruiting
Phase
First received
Last updated
Start date April 8, 2022
Est. completion date August 2025

Study information

Verified date June 2024
Source Fondation Ophtalmologique Adolphe de Rothschild
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Cervical dystonia is the most common form of focal dystonia in adults (50-82%). It manifests itself by a abnormal attitude of the head, intermittent or permanent, due to involuntary contraction of the cervical muscles which appears or is accentuated on the occasion of voluntary movement and maintenance posture. The distribution of dystonic muscles is specific to each patient explaining the diversity of patterns encountered. The therapeutic management of DC is essentially local and symptomatic. It is based on the realization of injections of neuro botulinum toxin (BoNT) targeting target (dystonic) muscles responsible for involuntary movements or posture abnormal. Identifying the muscles involved is a step prerequisite for therapeutic intervention.The obliquus capitis inferior (OCI) also known as Lower Oblique belongs to the group of suboccipital muscles.It is the only suboccipital muscle that does not attach to the skull. Its unilateral contraction causes ipsilateral rotation of C1 therefore of the head. The length of the transverse process of the atlas gives it considerable rotary efficiency. It is described as the cephalic rotation starter muscle. It would perform the 30 first degrees of rotation. The rotation of the whole column cervical would then be continued by the synergistic action of the muscle contralateral sternocleidomatoid and Spl. ipsilateral. The level of joint complex C1-C2 the amplitude of rotation corresponds to approximately 50% of the total rotation of the cervical spine. In order to better understand the part played by the OCI muscle in the disorganization of posture and cervical movements in the axial plane (plane of rotation) in the rotary DC, the investigators want biomechanically analyze its function in pathological situation. The physiology of this muscle is richly documented in healthy subjects. But does this knowledge apply in DC? Acquisition of imagery by the "Cone Beam" or CBCT system (Cone Beam Computed Tomography) before and 5 weeks after the injection of BoNT, will allow the analysis of the displacement of each vertebrate.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 30
Est. completion date August 2025
Est. primary completion date August 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria: - Patients between the ages of 18 and 70 - Presenting with a diagnosed focal CD with predominantly rotational by a neurologist specialized in abnormal movements - Receiving botulinum toxin injection at OIC level as part of his treatment - Express consent to participate in the study - Member of or beneficiary of a social security scheme Exclusion Criteria: - Mobile DC (scrapie and/or myoclonic) that cannot be controlled the recording time by the CBCT system - Having already benefited from an injection of BoNT as part of their DC in the last three months - Inability to sit still - Neurological condition other than DC (parkinsonian syndrome typical or atypical, others.) - Severe neck pain - Known or suspected trauma or pathology of the cervical spine, other than DC, having required treatment in the last 6 month - Same old surgery of the cervical spine - Patient benefiting from a legal protection measure - Pregnant or breastfeeding women (a urine pregnancy test will be carried out in women under 50)

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
France Hopital Fondation Adolphe de Rothschild Paris

Sponsors (1)

Lead Sponsor Collaborator
Fondation Ophtalmologique Adolphe de Rothschild

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Changes in posture and main movement rotation of the cervical spine Movement of primary rotation of the cervical spine on CBCT imaging will be described using the symmetry index (SI), based on the difference angular (in degrees) of the active amplitude of right rotation and left Before (day0) and after injection of BoNT (after 8 weeks max)
See also
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Withdrawn NCT02180139 - tDCS in Cervical Dystonia N/A
Completed NCT00541905 - Daily Dystonia Practice - A Trial to Investigate NT 201, the Duration of Treatment Effect After One Injection Session and in Long-term Treatment in Cervical Dystonia Phase 4
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Completed NCT02131467 - Safety and Tolerability of Perampanel in Cervical Dystonia Phase 1/Phase 2
Completed NCT02959645 - Assessment of Brain Activities in Cervical Dystonia
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Completed NCT05157100 - Clinical Study of Ingrezza (Valbenazine) for the Treatment of Cervical Dystonia Phase 4
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Completed NCT05103202 - Efficacy and Safety of 10-Week or Shorter vs 12-Week or Longer Injection Intervals of Botulinum Toxin
Terminated NCT00760318 - Keppra for Cervical Dystonia Phase 2
Completed NCT00323765 - Plasticity in Cervical Dystonia N/A
Completed NCT04171258 - Clinical Trial to Compare the Safety and Efficacy of Botulax® Versus Botox® in Patients With Cervical Dystonia Phase 1
Completed NCT04849988 - A Phase 2 Study to Evaluate the Safety and Efficacy of ABP-450 in the Treatment of Cervical Dystonia Phase 2