Transcranial Magnetic Stimulation in Depression. (LiTMS)
Effect of Low-intensity Transcranial Magnetic Stimulation (Li-TMS) on Sleep Disorders, Inflammation Levels, and Brain-derived Neurotrophic Factor in Patients With Depression.
Major depressive disorder (MDD) has increased in recent years, affecting 16.1% of the adult population nationwide. Currently, there are pharmacological and psychological treatments that have a 67% remission rate for depressive symptoms and insomnia after up to four trials of antidepressant treatments. Recently, low-intensity transcranial magnetic stimulation (Li-TMS) has been used to activate and generate structural and neural functioning changes in specific cortical regions such as the left dorsolateral prefrontal cortex, as its activity is altered in MDD. Furthermore, an increase in circulating levels of granulocytes, monocytes, and inflammatory cytokines has been observed in patients with MDD, suggesting an association between inflammation and neurotoxicity with the development of depression and decreased BDNF, mainly affecting the prefrontal cortex and hippocampus. Therefore, it has been proposed to quantify markers of systemic inflammation and evaluate their correlation with MDD and their possible effect with Li-TMS. This was a probabilistic, two-arm, block-randomized, single-blind clinical trial. A qualified psychiatrist evaluated the patients according to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) to confirm the diagnosis of major depressive disorder. Two groups were formed and randomly assigned to receive treatment: transcranial magnetic stimulation or the sham group. The patients were unaware of the treatment; they did not know whether they would receive low-intensity transcranial magnetic stimulation (Li-TMS) or not.
It was a clinical trial, two arms, probabilistic, block randomized, single-blind. The experimental group received conventional drug treatment combined with Li-TMS, and the control group was administered standard drug therapy with coil placement, without exposure to Li-TMS emission. Both groups had the device coils placed on them.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
In low- and middle-income countries, only 25% of patients diagnosed with depression receive some form of treatment, with the current options being standard drug therapy and/or psychotherapy (WHO, 2023) (1). However, only about 35% of patients achieve complete remission of symptoms, resulting in more than half of patients with treatment-resistant depression (4).
Several studies have evaluated the efficacy of bilateral high-frequency (10 Hz) (5,6) and low-frequency (1 Hz) (50) Li-TMS applied to the dorsolateral prefrontal cortex (DLPFC) in patients with depression and insomnia over a 6-week period, totaling 30 sessions. These studies showed improvement in depressive symptoms and sleep quality in adults beginning at session 10 (5) and 15, respectively, as assessed by the Pittsburgh Sleep Quality Index (PSQI) and the Patient Health Questionnaire-9 (PHQ9) (7).
The exact mechanism by which Li-TMS improves sleep quality in patients with depression remains unclear. However, evidence indicates that patients who underwent high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) demonstrate improvement in sleep patterns, improvement in sleep stage, positive correlations in motor evoked potential, negative correlations with GABA and BDNF levels, as well as decreased levels of thyroid hormone, adrenocorticotropic hormone, and thyroid-stimulating hormone (5).
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Guanajuato
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León, Guanajuato, Mexico, 37328
- 1Clinical Epidemiology Research Unit. OOAD Guanajuato. Mexican Social Security Institute, Leon, Mexico,
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Clinical diagnosis of major depressive disorder
- insomnia
Exclusion Criteria:
- Epilepsy
- Alzheimer's Disease
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Dobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Sham-komparator: group of sham-treated patients
The Sham group was administered standard drug therapy with coil placement, without exposure to Li-TMS emission.
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the control group were administered standard drug therapy with coil placement, without exposure to Li-TMS emission.
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Aktiv komparator: Group receive low-intensity transcranial magnetic stimulation (Li-TMS)
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20 sessions of Li-TMS with the medical device Nibbot Pro Series.
Each Li-TMS session consisted in positioning an eight-shaped coil over the left dorsolateral prefrontal cortex (L-DLPFC) which dispensed magnetic pulses at 25 Hz, (30 mT) for 45 minutes.
Subjects received one Li-TMS session daily, from Monday through Friday.
The experimental group received conventional drug treatment combined with Li-TMS, and the control group were administered standard drug therapy with coil placement, without exposure to Li-TMS emission.
Both groups had the device coils placed on them.
At the end of the study, the control group received Li-TMS treatment.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Changes in depressive symptoms following 20 sessions of transcranial magnetic stimulation.
Tidsramme: From the start of treatment until 4 weeks after it ends.
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The Hamilton Scale assesses the severity of depression or anxiety using scores that classify symptoms as mild, moderate, or severe, consists of 17 items that assess aspects such as mood, anxiety, insomnia, loss of interest, and somatic symptoms. Each item is scored between 0 and 2 or 0 and 4, depending on the symptom. The total score is obtained by adding the values of all items, with a typical range of 0 to 52 points. Interpretation of HAM-D Scores: 0-7 points: No depression. 8-13 points: Mild depression.14-18 points: Moderate depression 19-22 points: Severe depression >23 points: Very severe depression, with risk of suicide. The scale also allows for monitoring changes in symptoms over time, evaluating response to treatment or remission of depression. A decrease of at least 50% from the initial score indicates a response to treatment, and scores below-7 suggest remission. |
From the start of treatment until 4 weeks after it ends.
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Blanca Olivia Murillo Ortiz, PhD, Mexican Social Security Institute
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- IMSS1
- R-2024-785-075 (Registry Identifier: National Scientific Research Commission)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
IPD-delingsadgangskriterier
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- CSR
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