SMTr-METAB : FDG-PET Assessment of Cerebral Metabolism in Resistant Depression Treated With rTMS
SMTr-METAB
Cerebral Functional Modifications After Low Frequency Repetitive Transcranial Magnetic Stimulation in Refractory Depression. Assessment With 18F-FDG-PET Imaging.
1 other identifier
interventional
22
2 countries
2
Brief Summary
Biological markers of depressive states have been studied, but their usefulness to predict the therapeutic response is unknown. This issue is major in all depressive states which have not remitted after several lines of treatment. rTMS (repetitive transcranial magnetic stimulation) is a non-pharmacological alternative in the treatment of depression, but its effects on cerebral functioning are not known in episodes which have resist to conventional treatments. The investigators will include 50 depressive patients who have failed to respond to two successive antidepressant medication, and propose them a treatment with low frequency rTMS during 3 to 6 weeks. Cerebral functional imaging with 18FDG-PET (positon emission tomography) with be assessed at the beginning and at the end of rTMS acute treatment, in order to measure induced metabolic changes and their correlation with clinical states. Patients who have responded to rTMS acute treatment may continue this therapeutic for six months, and the investigators will assess if efficacy maintenance is related with cerebral metabolic variations
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable depression
Started May 2016
Longer than P75 for not_applicable depression
2 active sites
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
April 21, 2016
CompletedFirst Posted
Study publicly available on registry
April 28, 2016
CompletedStudy Start
First participant enrolled
May 4, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 6, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
March 20, 2020
CompletedApril 18, 2022
April 1, 2022
3.8 years
April 21, 2016
April 11, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Variation of the regional cerebral glucose consumption between the two PET-TDM
Variation of the regional cerebral glucose consumption between the two PET-TDM (realized at inclusion and at Week 6)
at week 6
Secondary Outcomes (1)
Comparison of local glucose use between responder and non-responder patients
at week 6
Study Arms (1)
Patient
EXPERIMENTALPatient with resistant depression treated with rTMS
Interventions
Eligibility Criteria
You may qualify if:
- Subject from 40 to 65 years old
- Characterized current depressive Episode, unipolar, without psychotic characteristic (according to DSM IV-TR)
- Absence of answer or partial clinical answer to more than two antidepressant treatments of different therapeutic classes to effective posology on a duration of at least 6 weeks
- Patient affiliated to French social security
- Patient must give a written, signed and dated informed consent before any study related activity is performed. Where relevant, a legal representative will also sign the informed study consent according to local laws and regulations
You may not qualify if:
- Failure in a previous low-frequency rTMS cure (at least 15 sessions)
- Failure in a cure of bilateral ECT (at least 8 sessions) or unilateral (at least 10 sessions)
- Mental disorder owed to a general medical affection ( DSM-IV)
- Severe or not stabilized somatic Disease
- chronic depression evolving for more than 3 years
- Not answer in more of therapeutic antidepressive five well (documented) conducts
- Presence of contraindication the SMTr, of which epileptic disease
- Schizophrenic Disorder
- Addicting Disorder with current dependence (alcohol, cannabis, benzodiazepin)
- Bipolar disorder (I, II)
- Disorder of personality to cluster A and B co-morbid
- Pregnant Woman (dosage of urinary Beta-HCG)
- Vulnerable Person: major under guardianship or guardianship, minor
- Mental Deficiency of the subject making its participation on approval impossible
- Participation in another clinical trial
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
CHU de Nice
Nice, 06000, France
Hôpital Princesse Grace
Monaco, 98000, Monaco
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 21, 2016
First Posted
April 28, 2016
Study Start
May 4, 2016
Primary Completion
February 6, 2020
Study Completion
March 20, 2020
Last Updated
April 18, 2022
Record last verified: 2022-04
Data Sharing
- IPD Sharing
- Will not share