Brief Summary

In this study, using computerized cognitive assessments combined with multi-modal neuroimaging approach investigators aim to address three specific questions on patients with cervical and myoclonus dystonia: (i) investigate various aspects of the sense of agency and relationship to the severity of dystonia symptoms, (ii) characterize the possible link between abnormalities of movement perception and alteration of sense of agency in dystonia, (iii) (identify the neuronal underpinnings of the defective sense of agency in dystonia.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
76

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 10, 2017

Completed
13 days until next milestone

Study Start

First participant enrolled

October 23, 2017

Completed
1 month until next milestone

First Posted

Study publicly available on registry

November 22, 2017

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 15, 2020

Completed
2.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 20, 2022

Completed
Last Updated

December 4, 2025

Status Verified

March 1, 2025

Enrollment Period

3 years

First QC Date

October 10, 2017

Last Update Submit

November 26, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • agency tasks behavioral outcome measures

    response time

    throughout study completion, an average 2 years

  • agency tasks behavioral outcome measures

    response accuracy in tasks trials

    throughout study completion, an average 2 years

Secondary Outcomes (2)

  • MRI measures

    throughout study completion, an average 2 years

  • MRI measures

    throughout study completion, an average 2 years

Study Arms (2)

Patients

OTHER

25 patients with cervical and 25 patients with myoclonus dystonia

Behavioral: Behavioral testing - computerized tasks

Controls

OTHER

50 healthy volunteers matched to patents ( age, sex)

Behavioral: Behavioral testing - computerized tasks

Interventions

Cognitive behavioral testing and cerebral MRI

ControlsPatients

Eligibility Criteria

Age15 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • diagnosis of isolated adult-onset cervical dystonia (CD) or myoclonus dystonia (MD);
  • duration of disease of more than one year
  • no botulinum toxin injection for at least three months before the study
  • normal or corrected-to-normal vision.

You may not qualify if:

  • any neurological history except for dystonia,
  • history of dopamine antagonist treatment,
  • secondary dystonia,
  • dystonia in the upper limbs,
  • inability to maintain gaze straight.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre d'investigation Clinique

Paris, Île-de-France Region, 75013, France

Location

Related Publications (6)

  • Tarrano C, Lamy JC, Delorme C, McGovern EM, Atkinson-Clement C, Brochard V, Thobois S, Tranchant C, Grabli D, Degos B, Corvol JC, Pedespan JM, Krystkoviak P, Houeto JL, Degardin A, Defebvre L, Apartis E, Vidailhet M, Roze E, Worbe Y. Tactile Temporal Discrimination Is Impaired in Myoclonus-Dystonia. Mov Disord. 2020 Dec;35(12):2356-2357. doi: 10.1002/mds.28253. Epub 2020 Sep 22. No abstract available.

  • Tarrano C, Wattiez N, Delorme C, McGovern EM, Brochard V, Thobois S, Tranchant C, Grabli D, Degos B, Corvol JC, Pedespan JM, Krystkoviak P, Houeto JL, Degardin A, Defebvre L, Valabregue R, Vidailhet M, Pouget P, Roze E, Worbe Y. Visual sensory processing is altered in myoclonus dystonia. Mov Disord. 2020 Jan;35(1):151-160. doi: 10.1002/mds.27857. Epub 2019 Sep 30.

  • Zito GA, Tarrano C, Jegatheesan P, Ekmen A, Beranger B, Rebsamen M, Hubsch C, Sangla S, Bonnet C, Delorme C, Meneret A, Degos B, Bouquet F, Brissard MA, Vidailhet M, Gallea C, Roze E, Worbe Y. Somatotopy of cervical dystonia in motor-cerebellar networks: Evidence from resting state fMRI. Parkinsonism Relat Disord. 2022 Jan;94:30-36. doi: 10.1016/j.parkreldis.2021.11.034. Epub 2021 Nov 30.

  • Zito GA, Tarrano C, Ouarab S, Jegatheesan P, Ekmen A, Beranger B, Valabregue R, Hubsch C, Sangla S, Bonnet C, Delorme C, Meneret A, Degos B, Bouquet F, Apoil Brissard M, Vidailhet M, Hasboun D, Worbe Y, Roze E, Gallea C. Fixel-Based Analysis Reveals Whole-Brain White Matter Abnormalities in Cervical Dystonia. Mov Disord. 2023 Jul;38(7):1187-1196. doi: 10.1002/mds.29425. Epub 2023 May 6.

  • Zito GA, Roze E, Tarrano C, Ouarab S, Jegatheesan P, Ekmen A, Beranger B, Valabregue R, Hubsch C, Sangla S, Bonnet C, Delorme C, Meneret A, Degos B, Bouquet F, Apoil Brissard M, Vidailhet M, Hasboun D, Pouget P, Worbe Y, Gallea C. Abnormal Connectivity of the Head Neural Integrator in Cervical Dystonia. Mov Disord. 2025 Nov;40(11):2321-2330. doi: 10.1002/mds.70014. Epub 2025 Sep 5.

  • Atkinson-Clement C, Tarrano C, Porte CA, Wattiez N, Delorme C, McGovern EM, Brochard V, Thobois S, Tranchant C, Grabli D, Degos B, Corvol JC, Pedespan JM, Krystkoviak P, Houeto JL, Degardin A, Defebvre L, Valabregue R, Rosso C, Apartis E, Vidailhet M, Pouget P, Roze E, Worbe Y. Dissociation in reactive and proactive inhibitory control in Myoclonus dystonia. Sci Rep. 2020 Aug 18;10(1):13933. doi: 10.1038/s41598-020-70926-x.

MeSH Terms

Conditions

Dystonic Disorders

Condition Hierarchy (Ancestors)

Movement DisordersCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Model Details: Two groups study : patients versus healthy controls
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 10, 2017

First Posted

November 22, 2017

Study Start

October 23, 2017

Primary Completion

October 15, 2020

Study Completion

December 20, 2022

Last Updated

December 4, 2025

Record last verified: 2025-03

Locations