NCT01497639

Brief Summary

The aim of the study is to compare the efficacy and the safety profile of the newly introduced interleaving stimulation mode to those of the standard double monopolar stimulation mode during pallidal deep brain stimulation of primary generalized or segmental dystonia.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2012

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

December 14, 2011

Completed
8 days until next milestone

First Posted

Study publicly available on registry

December 22, 2011

Completed
2 months until next milestone

Study Start

First participant enrolled

March 1, 2012

Completed
6.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 7, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 7, 2018

Completed
Last Updated

November 26, 2018

Status Verified

November 1, 2018

Enrollment Period

6.3 years

First QC Date

December 14, 2011

Last Update Submit

November 22, 2018

Conditions

Keywords

dystoniapallidal stimulationdeep brain stimulationdeep brain stimulation of GPiGPiinterleaving stimulation

Outcome Measures

Primary Outcomes (1)

  • Differences in severity of dystonia

    Differences in severity of dystonia measured by Burke-Fahn-Marsden Dystonia Rating Scale

    7 months

Secondary Outcomes (3)

  • Number of treatment responders after three months deep brain stimulation

    7 months

  • Health-related quality of life after three months deep brain stimulation

    7 months

  • Side-effect profile after three months deep brain stimulation

    7 months

Study Arms (2)

Process 1

ACTIVE COMPARATOR

* Visit 1: Baseline evaluation (maximum 1 week before operation) * Visit 2: Testing of electrodes and subsequent initiation of interleaving stimulation mode (4th postoperative week). * Visit 3 Evaluation and cross-over to double-monopolar stimulation mode (16th postoperative week). * Visit 4 Final evaluation. (28th postoperative week).

Device: Interleaving stimulation mode (Medtronic)Device: Double monopolar stimulation mode (Medtronic)

Process 2

ACTIVE COMPARATOR

* Visit 1: Baseline evaluation (maximum 1 week before operation) * Visit 2: Testing of electrodes and subsequent initiation of double-monopolar stimulation mode (4th postoperative week). * Visit 3 Evaluation and cross-over to interleaving stimulation mode (16th postoperative week). * Visit 4 Final evaluation. (28th postoperative week).

Device: Interleaving stimulation mode (Medtronic)Device: Double monopolar stimulation mode (Medtronic)

Interventions

Interleaving stimulation mode with constant frequency (125 Hz) and pulse-width (120us)parameters 'Interleavingr stimulation mode (Medtronic)'

Also known as: Medtronic Activa RC Interleaving Stimulation Mode
Process 1Process 2

Double monopolar stimulation mode with constant frequency (125 Hz) and pulse-width (120us)parameters 'Double monopolar stimulation mode (Medtronic)'

Also known as: Medtronic Activa RC Double Monopolar Stimulation Mode
Process 1Process 2

Eligibility Criteria

Age7 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • ages of 7 and 75 years
  • marked disability owing to primary generalized or segmental dystonia, despite optimal pharmacologic treatment
  • disease duration of at least 5 years.

You may not qualify if:

  • previous brain surgery;
  • cognitive impairment (\< 120 points on the Mattis Dementia Rating Scale)
  • moderate-to-severe depression (\> 25 points on the Beck Depression Inventory)
  • marked brain atrophy as detected by magnetic resonance imaging
  • other medical or psychiatric coexisting disorders that could increase the surgical risk or interfere with completion of the trial

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, University of Pécs

Pécs, Baranya, H-7623, Hungary

Location

Related Publications (7)

  • Kupsch A, Benecke R, Muller J, Trottenberg T, Schneider GH, Poewe W, Eisner W, Wolters A, Muller JU, Deuschl G, Pinsker MO, Skogseid IM, Roeste GK, Vollmer-Haase J, Brentrup A, Krause M, Tronnier V, Schnitzler A, Voges J, Nikkhah G, Vesper J, Naumann M, Volkmann J; Deep-Brain Stimulation for Dystonia Study Group. Pallidal deep-brain stimulation in primary generalized or segmental dystonia. N Engl J Med. 2006 Nov 9;355(19):1978-90. doi: 10.1056/NEJMoa063618.

    PMID: 17093249BACKGROUND
  • Vidailhet M, Vercueil L, Houeto JL, Krystkowiak P, Benabid AL, Cornu P, Lagrange C, Tezenas du Montcel S, Dormont D, Grand S, Blond S, Detante O, Pillon B, Ardouin C, Agid Y, Destee A, Pollak P; French Stimulation du Pallidum Interne dans la Dystonie (SPIDY) Study Group. Bilateral deep-brain stimulation of the globus pallidus in primary generalized dystonia. N Engl J Med. 2005 Feb 3;352(5):459-67. doi: 10.1056/NEJMoa042187.

    PMID: 15689584BACKGROUND
  • Valldeoriola F, Regidor I, Minguez-Castellanos A, Lezcano E, Garcia-Ruiz P, Rojo A, Salvador A, Castro A, Grandas F, Kulisevsky J, Marti MJ, Martinez-Martin P, Relova L, Rumia J, Camara A, Burguera JA, Linazasoro G, de Val JL, Obeso J, Rodriguez-Oroz MC, Tolosa E; Grupo ESpanol para el EStudio de la EStimulacion PALidal en la DIStonia. Efficacy and safety of pallidal stimulation in primary dystonia: results of the Spanish multicentric study. J Neurol Neurosurg Psychiatry. 2010 Jan;81(1):65-9. doi: 10.1136/jnnp.2009.174342. Epub 2009 Sep 10.

    PMID: 19744963BACKGROUND
  • Vidailhet M, Vercueil L, Houeto JL, Krystkowiak P, Lagrange C, Yelnik J, Bardinet E, Benabid AL, Navarro S, Dormont D, Grand S, Blond S, Ardouin C, Pillon B, Dujardin K, Hahn-Barma V, Agid Y, Destee A, Pollak P; French SPIDY Study Group. Bilateral, pallidal, deep-brain stimulation in primary generalised dystonia: a prospective 3 year follow-up study. Lancet Neurol. 2007 Mar;6(3):223-9. doi: 10.1016/S1474-4422(07)70035-2.

    PMID: 17303528BACKGROUND
  • Kupsch A, Tagliati M, Vidailhet M, Aziz T, Krack P, Moro E, Krauss JK. Early postoperative management of DBS in dystonia: programming, response to stimulation, adverse events, medication changes, evaluations, and troubleshooting. Mov Disord. 2011 Jun;26 Suppl 1:S37-53. doi: 10.1002/mds.23624.

    PMID: 21692111BACKGROUND
  • Kovacs N, Janszky J, Nagy F, Balas I. Changing to interleaving stimulation might improve dystonia in cases not responding to pallidal stimulation. Mov Disord. 2012 Jan;27(1):163-5. doi: 10.1002/mds.23962. Epub 2011 Sep 28. No abstract available.

    PMID: 21956680BACKGROUND
  • Tagliati M, Krack P, Volkmann J, Aziz T, Krauss JK, Kupsch A, Vidailhet AM. Long-Term management of DBS in dystonia: response to stimulation, adverse events, battery changes, and special considerations. Mov Disord. 2011 Jun;26 Suppl 1:S54-62. doi: 10.1002/mds.23535.

    PMID: 21692113BACKGROUND

MeSH Terms

Conditions

Dystonic DisordersDystonia

Condition Hierarchy (Ancestors)

Movement DisordersCentral Nervous System DiseasesNervous System DiseasesDyskinesiasNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Norbert Kovacs, MD, PhD

    Associate professor, Department of Neurology, University of Pecs

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor, specialist in neurology and movement disorders, Department of Neurology

Study Record Dates

First Submitted

December 14, 2011

First Posted

December 22, 2011

Study Start

March 1, 2012

Primary Completion

June 7, 2018

Study Completion

June 7, 2018

Last Updated

November 26, 2018

Record last verified: 2018-11

Locations