The aim of this project is to investigate the multimodal magnetic resonance brain imaging changes in adolescents with major depressive disorder (MDD) before and after electroconvulsive therapy. Development of a predictive model for the efficacy of electroconvulsive therapy in adolescent MDD.
This is a multicenter, prospective, observational study. We will divide the adolescent MDD patients into two groups according to the treatment modality as follows: Group 1 (Modified Electroconvulsive Therapy (MECT), n=60); Group 2 (Non-Modified Electroconvulsive Therapy (Non-MECT), n=60). Patients in group 1 will be treated with MECT according to standard clinical care. Group 2 will receive conventional drug therapy. A healthy control group (n=60) will also be recruited. The most modern MRI sequences examining brain structure and function are used at 4 time points: at baseline (just before MECT series), the second examination (just after MECT series) and the third and forth (follow-up) examination (3 and 6 months after MECT series). Blood, urine and feces samples and the evaluation of clinical effect and side-effects to MECT are performed at the same time points. The primary outcome for the treatment phase is the treatment remission rate and response rate. The secondary outcomes included: symptom scale, Quality of life, Sleep therapy, Symptoms of anxiety, Rumination and safety assessment.
Study Type
OBSERVATIONAL
Enrollment
180
MECT is performed using the Thymatron System IV (Somatics LLC, LakeBluff, IL, USA) electroconvulsive therapy (ECT) machine. Prior to ECT, all patients undergo laboratory tests such as routine blood, liver, kidney and thyroid function and an ECG and remain fasted for 12 hours. Initial treatment power is considered by age: percentage of power = age x 0.7. Stimulation power is adjusted according to seizure duration. If the seizure duration is less than 25 seconds, the energy is increased by 5% in the subsequent treatments. Anaesthesia and muscle relaxation were administered with propofol (1.5-2 mg/kg) and succinylcholine (0.5-1 mg/kg), respectively, and subjects were awakened after ECT treatment and adverse effects, such as subjective memory impairment, headache or nausea/vomiting, were recorded. Frequency of ECT treatment: 3-4 times per week for a total of 6-8 sessions
Conventional pharmacotherapy: SSRIs including fluoxetine, paroxetine, sertraline, cetinopram, fluvoxamine, vortioxetine, escitalopram; SNRIs including venlafaxine, duloxetine; NaSSA including mirtazapine; other antidepressants including trazodone, bupropion, agomelatine; potentiators including aripiprazole, olanzapine, quetiapine, risperidone.
The First Affiliated Hospital of Chongqing Medical University
Chongqing, Province, China
RECRUITINGChanges in CDRS-R (Children's Depression Rating Scale, Revised) scores
Clinical response (≥ 50% reduction in CDRS-R scores from baseline).
Time frame: The treatment period was baseline, 2-4 weeks. The follow-up period was 1 month, 3 months, 6 months.
Changes in BDI (Beck's Depression Inventory) scores
The severity of depression symptom.
Time frame: The treatment period was baseline, 2-4 weeks. The follow-up period was 1 month, 3 months, 6 months.
Changes in SCARED (Screen for Child Anxiety Related Disorders) scores
The severity of Anxiety symptom.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in suicide risk on C-SSRS (Columbia Suicide Severity Rating Scale) scores
The severity of the suicide risk.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in PSQI (Pittsburgh Sleep Quality Index) scores
Measures of sleep status.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in PedsQL4.0 (The Pediatric Quality of Life Inventory 4.0) scores
Measures of children's quality of life.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in CGI-S (Clinical Global Impressions-Severity Scales) scores
Measures of clinical impression severity.
Time frame: Baseline of treatment period, 2-4 weeks
Changes in CGI-I (Clinical Global Impressions-Improvement Scales) scores
Measures of clinical general Impression scale.
Time frame: The treatment period was 2-4 weeks
Changes in RSS (Ruminative Responses Scale) scores
Measures of negative thinking.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Assessment of CTQ(Childhood Trauma Questionnaire)
Measures of childhood trauma.
Time frame: Baseline of treatment period
Assessment of OB/VQ(Olweus Bully/Victim Questionnaire)
Measures of bully/victim problems.
Time frame: Baseline of treatment period
Changes in AE(Adverse Event)Scale
Measures of any untoward medical orrurrence in a patient or clinical investigation subject administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment.
Time frame: The treatment period was 2-4 weeks; The follow-up period was 1 month, 3 months, 6 months.
Assessment of SAE(Serious Adverse Event)Scale
Measures of adverse medical events.
Time frame: The treatment period was 2-4 weeks; The follow-up period was 1 month, 3 months, 6 months.
Changes in THINC-it
Measures of cognition function.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in functional MRI
Resting state MRI, measurement of functional connectivity.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in structural MRI T1 and T2
Measures of brain structure.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in Cerebral Blood Flow
Estimated by Arterial Spin Labeling MRI.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
Changes in concentration of Glu and GABA in ACC
MR Spectroscopy og the ACC, measures of neuronal integrity.
Time frame: Baseline of treatment period, 2-4 weeks; The follow-up period was 3 months, 6 months
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