Transcranial Magnetic Stimulation Study of Cortical Excitability as Marker of Antidepressant Response: EXCIPSY Study
EXCIPSY
Pilot Study on the Identification of Cortical Excitability Changes Measured by Transcranial Magnetic Stimulation (TMS) as Markers of Antidepressant Response
1 other identifier
interventional
22
1 country
1
Brief Summary
Depression is a common issue but there is no marker of response to an antidepressant treatment.The measurement of variation of the cortical excitability in responders to a selective serotonin reuptake inhibitor (SSRI) (compared to no-responders) had never been done before. In the study of Robol et al. (2004) concerning the acute effects of citalopram on markers of cortical excitability, the authors have pointed out an increase on the cortical silent period (CSP) after administration of citalopram (2.5 hours). The investigators hypothesize that this effect remains later and that the diminution of cortical excitability could be a biomarker of antidepressant response. In this case, they expect that the variation of CSP between day 1 and day 28 is higher in responders to a SSRI (citalopram) compared to non-responders. the investigators lead a pilot, prospective, multicentric study in drug-naive patients to compare the variation of the markers of cortical excitability (the CSP but to the resting motor threshold RMT, the motor evoked potential MEP, the intra-cortical inhibition ICI and the intra-cortical facilitation ICF) between day 1 and day 28 in responders to citalopram, compared to non-responders.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable major-depressive-disorder
Started Jul 2018
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 19, 2018
CompletedStudy Start
First participant enrolled
July 30, 2018
CompletedFirst Posted
Study publicly available on registry
July 31, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 30, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
August 30, 2020
CompletedJuly 31, 2018
July 1, 2018
2.1 years
July 19, 2018
July 28, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Variation of the CSP between day 1 and day 28
The difference in variation of the cortical silent period (CSP) between day 1 and day 28 in responders compared to non-responders. A decrease by at least 50% on Hamilton Depression rating Scale (HAMD-21) define response to citalopram.The HAMD-21 assesses the intensity of the depressive symptoms with 21 items. Its score is between 0 (no depression) and 73 (the maximum of intensity).
28 days
Secondary Outcomes (8)
Variation of the RMT between day 1 and day 28
28 days
Variation of the MEP between day 1 and day 28
28 days
Variation of the ICI between day 1 and day 28
28 days
Variation of the ICF between day 1 and day 28
28 days
Variation of the markers of cortical excitability at other times
14 days
- +3 more secondary outcomes
Study Arms (1)
Treatment by citalopram
EXPERIMENTALThe patients will receive a treatment by citalopram at 20mg/day. If patients respond by at least 20% on the HAMD-21 scale at day 14 : continuation at 20 mg/day. If patients do not respond by at least 20% at day 14 : increase the dose at 40 mg/day. The patients who will not respond by at least 50% on the HAMD-21 scale at day 28 will be excluded of the study and will undergo a new treatment plan. The patients who will respond by at least 50% on HAMD-21 at day 28 will continue citalopram at the same dose and will be reappraised at day 60. The patients will be assessed for the markers of neuroexcitability at day 1, day 3, day 7, day 14, day 28 and day 60.
Interventions
In the arm experimental "treatment by citalopram", measurements of markers of cortical excitability by Transcranial Magnetic Stimulation will be applied. These measurements were: the cortical silent period CSP, the evoked potential MEP, the intra-cortical inhibition ICI and the intra-cortical facilitation ICF). Electromagnetic coil is placed upon the vertex, according to the International 10-20 EEG system. Gathering of the peripheral signal by a surface EMG electrode (non invasive device) placed regarding one of the first dorsal interosseous muscle.
Eligibility Criteria
You may qualify if:
- major depressive episode (according to DSM 5 criteria). Severity of depressive episode assessed by Hamilton Depressive Rating Scale 21 items (HAMD-21) : score \> 15 (significant impairment), low suicide risk (score \< 2 on suicide item).
- Drug-naive patient (or antidepressant stopped for more than 3 months).
- Patient covered by security social system.
- Patient who is able to read and understand the information paper. Patient who is able to sign the consent.
- For women of childbearing age, effective method of contraception (estrogen-progestin contraceptive or intra-uterine device or tubal ligation) for more than 1 month (negative pregnancy test).
You may not qualify if:
- Coprescription of psychoactive or neurological drugs known to alter cortical excitability
- Other psychiatric disorders (psychotic disorders, eating disorders).
- Change of antidepressive drug during the study.
- Abuse or addiction at other substances than nicotine or caffeine.
- Unsteady consumption of nicotine or caffeine.
- Dermatologic disease, dementia, medical history of seizure or epilepsy, brain tumor, metallic biomedical implants in brain.
- Ongoing treatment by magnetic or electric stimulation (for example : transcutaneous nerve stimulation or spinal cord stimulation).
- Women of childbearing age without effective contraception, pregnant or breastfeeding.
- Patient deprived of liberty and under guardianship.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Centre Hospitalier du Rouvraylead
- Centre hospitalier de Ville-Evrard, Francecollaborator
- University Hospital Caen, Francecollaborator
Study Sites (1)
Rouvray Hospital
Sotteville-lès-Rouen, 76300, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 19, 2018
First Posted
July 31, 2018
Study Start
July 30, 2018
Primary Completion
August 30, 2020
Study Completion
August 30, 2020
Last Updated
July 31, 2018
Record last verified: 2018-07