Effects of Vagus Nerve Stimulation (VNS) as a Treatment of Persistent Depression With Comorbid Personality Disorders (Impulse-VNS

NCT ID: NCT01119053

Last Updated: 2022-08-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2009-11-30

Study Completion Date

2014-11-30

Brief Summary

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In this monocentre two-armed double blind randomised placebo-controlled study - in which the control group obtains the VNS therapy within a defined space of time after 12 weeks - the impact of vagus nerve stimulation on depressive symptomatology of patients with therapy-resistant depressive personality disorders shall be analysed. Particularly in comorbid disorders, medicamentous treatment shows exceedingly bad response rates. Against the background of hitherto insufficient treatment strategies for chronic or persistent depression with comorbidities, the proceeding of a study on the effects of VNS on depressive patients with comorbid disorders is absolutely essential.

Detailed Description

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Conditions

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Depression Comorbid Personality Disorders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Arm I

In this branch of study, study participants obtain the VNS therapy after a defined space of time of 12 weeks.

Group Type SHAM_COMPARATOR

VNS Pulse Model 102

Intervention Type DEVICE

Within this branch, study participants obtain the VNS therapy after a defined space of time of 12 weeks.

Arm II

Within this space of time, study participants obtain the VNS therapy at once.

Group Type EXPERIMENTAL

VNS Pulse Model 102

Intervention Type DEVICE

Individual dosage within the realm of 0,25 mA - 3,5 mA. Uninterrupted stimulation of 24 h.

Interventions

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VNS Pulse Model 102

Individual dosage within the realm of 0,25 mA - 3,5 mA. Uninterrupted stimulation of 24 h.

Intervention Type DEVICE

VNS Pulse Model 102

Within this branch, study participants obtain the VNS therapy after a defined space of time of 12 weeks.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* embedding criteria according to "VNS manual for doctors"
* diagnosis of a recurrent depressive disorder (based on ICD-10 criteria) and a comorbid personality disorder (according to SKID I/II) with an ailment period of more than six months
* age 18-80 years
* verbal IQ (WST) 85 points
* HAM-D sum score \> 20 points
* at least four depressive episodes in the anamnesis
* no amelioration of current depressive episodes under two different antidepressants in appropriate dosage for six weeks
* constant medication within the last two weeks (at the discretion of the supervising doctor)
* written consent after informing the patient about the study
* no VNS treatment to date
* no misuse of illegal drugs or alcohol
* Women in childbearing age are not permitted to participate in the study if a doctor has asserted the non-existence of pregnancy before the beginning of the study. Furthermore, the procedure of a pregnancy test is recommended after the completion of the study. During the study, a reliable type of contraception (such as the Pill) should be taken. The doctor provides further information.

Exclusion Criteria

* present hospitalisation according to the federal states' PsychKG
* clinically relevant unstable bodily concomitant diseases
* former VNS treatment
* reduction of intelligence with verbal IQ \< 85 (WST)
* conceivable use of an MRT examination after the implantation of the VNS-system
* for diagnostic examinations with the dTMS and the MRT: electric devices (such as cardiac pacemakers, medicine pumps etc.) or pieces of metal (ferromagnetic, e.g. screws after bone fractures) within or at the body, or large-scale tattoos
* conditions that do not allow to use VNS, such as relevant dysfunctions of the heart's stimulus conduction system or cardiac arrhythmia, stomach ulcer, dysphagia, palsy of parts of the n-vagus nerve
* insufficient knowledge of the German language
* pregnancy or lactation
* current misuse of substances
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Medical Center Goettingen

OTHER

Sponsor Role lead

Responsible Party

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Claus Wolff-Menzler

Dr

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Peter Falkai, MD

Role: STUDY_DIRECTOR

Dept. of Psychiatry and Psychotherapy (University Medical Centre Goettingen, Germany)

Claus Wolff-Menzler, MD

Role: PRINCIPAL_INVESTIGATOR

Dept. of Psychiatry and Psychotherapy (University Medical Centre Goettingen, Germany)

Locations

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Dept. of Psychiatry and Psychotherapy (University Medical Centre)

Göttingen, Lower Saxony, Germany

Site Status

Countries

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Germany

Related Links

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http://www.psychiatrie.med.uni-goettingen.de/

Dept. of Psychiatry and Psychotherapy (University Medical Centre Goettingen)

Other Identifiers

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01VNS2009

Identifier Type: -

Identifier Source: org_study_id

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