NCT00772421

Brief Summary

The primary objective is to demonstrate that a higher proportion of responders to deep brain stimulation (DBS) in the anterior nucleus (AN) of the thalamus in refractory epilepsy patients in the SANTE study exhibit a recruitment rhythm relative to non-responders.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
29

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jan 2009

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 14, 2008

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 15, 2008

Completed
3 months until next milestone

Study Start

First participant enrolled

January 1, 2009

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2010

Completed
Last Updated

January 31, 2012

Status Verified

January 1, 2012

Enrollment Period

1.3 years

First QC Date

October 14, 2008

Last Update Submit

January 27, 2012

Conditions

Keywords

EpilepsyRecruitment rhythmDBS

Outcome Measures

Primary Outcomes (1)

  • To demonstrate that a higher proportion of DBS responders exhibit a RR relative to non-responders, using maximum tolerated voltage settings, at activated electrode contacts used for DBS stimulation in the SANTE study.

    Study testing to occur during the long-term follow-up phase of the SANTE trial.

Secondary Outcomes (1)

  • For patients without a RR at their activated DBS electrode contacts used in the SANTE study, demonstrate that activating other electrode contacts generates a RR.

    Study testing to occur during the long-term follow-up phase of the SANTE trial.

Study Arms (2)

Responder

A subject having at least a 50% reduction in total seizure frequency compared to the SANTE study 3-month Baseline Phase

Device: There was no intervention.

Non-responder

A subject with a less than 50% reduction in total seizure frequency compared to the SANTE study 3-month Baseline Phase.

Device: There was no intervention.

Interventions

There was no intervention. This study was designed as an in-clinic testing protocol to identify recruitment rhythms.

Non-responderResponder

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study will enroll the number of patients necessary to achieve the required sample size of 18 responders and 18 non-responders at a minimum of six (6) centers participating in the U.S. SANTE study.

You may qualify if:

  • Enrolled in the SANTÉ study, have been implanted with a complete DBS system, and is currently receiving stimulation in the long-term follow-up phase (post Month 13) of the study
  • Patient or legal representative is able to understand and provide signed consent for participating in the study
  • Willing and available to attend the visit as scheduled and to comply with the study protocol

You may not qualify if:

  • Patients unable to tolerate stimulation turned OFF during the testing period
  • Are pregnant or suspected of being pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Epilepsy

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
observational
Time Perspective
CROSS SECTIONAL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 14, 2008

First Posted

October 15, 2008

Study Start

January 1, 2009

Primary Completion

May 1, 2010

Study Completion

May 1, 2010

Last Updated

January 31, 2012

Record last verified: 2012-01