Effects and Mechanisms of Temporal Interference Stimulation (TIS) on Neuropathic Pain (TIS)
Aperçu de l'étude
Statut
Statut
Les conditions
Les conditions
Intervention / Traitement
Intervention / Traitement
Type d'étude
Type d'étude
Inscription (Estimé)
Inscription
Phase
Phase
- N'est pas applicable
Critères de participation
Critère d'éligibilité
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- IASP diagnosis of peripheral neuropathic pain;
- At least one month after the onset of pain;
- At least moderate pain intensity (≥ 3 assessed by VAS or NRS);
- 18 years or older;
- Stable medical treatment from 2 weeks before allocation to the end of the trial;
- Willing to receive TIS treatment and capable of fulfilling clinical assessments.
Exclusion Criteria:
- Contradictions to TIS treatment, such as metal implants or seizure;
- Serious psychiatric disorder (Hamilton Depression Rating Scale score ≥ 35 or Hamilton Anxiety Rating Scale score ≥ 29);
- Aphasia or cognitive disorders (Mini mental state examination ≤ 24);
- Severe clinical disorders caused by tumor or other conditions;
- Severe cardiopulmonary dysfunction or extreme weakness;
- History of substance abuse (alcohol, drugs).
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Nombre de bras
Armes et Interventions
Groupe de participants / BrasGroupe de participants / Bras |
Intervention / TraitementIntervention / Traitement |
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Expérimental: tTIS group
Following enrollment, patients underwent TIS treatment administered twice daily over five consecutive days, for a total of ten sessions.
The stimulation was targeted at the periaqueductal gray (PAG) region contralateral to the side of pain.
Assessments were conducted before treatment (T0) and immediately after the treatment course (T1), evaluating pain perception, emotional changes, and quality of life.
Additionally, local and whole-brain mechanisms were examined using TIS-EEG and fMRI.
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tTIS was applied to the PAG contralateral to the pain side for a duration of 20 minutes, comprising a 30-second ramp-up phase and a 30-second ramp-down phase.
Autres noms:
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Comparateur factice: Sham group
The sham group followed the same procedure as the TIS group.
However, the electrical current was only delivered in a 30-second ramp-up at the beginning and a 30-second ramp-down at the end of each session to replicate the initial peripheral sensation without providing sustained therapeutic stimulation.
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tTIS was applied to the PAG contralateral to the pain side for a duration of 20 minutes, comprising a 30-second ramp-up phase and a 30-second ramp-down phase.
Autres noms:
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Que mesure l'étude ?
Principaux critères de jugement
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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visual analogue scale(VAS)
Délai: Day1(Baseline), day 5 after intervention
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It typically consists of a 10-centimeter straight line, with two endpoints representing extreme states of the measured experience.
For example, when assessing pain, one end is labeled "0 (no pain at all)" and the other end "10 (worst pain imaginable, unbearable)".
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Day1(Baseline), day 5 after intervention
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Mesures de résultats secondaires
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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short-form McGill Pain Questionnaire (SF-MPQ)
Délai: Day1(Baseline), day 5 after intervention
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The Pain Rating Index of the Short-Form McGill Pain Questionnaire consists of 15 pain descriptors, including 11 sensory descriptors and 4 affective descriptors.
Each item is rated from 0 (none) to 3 (severe).
Item scores are summed to produce a total score ranging from 0 to 45, with higher scores indicating greater pain severity.
The outcome measure is the change in the total Pain Rating Index score from baseline to Day 5 after intervention.
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Day1(Baseline), day 5 after intervention
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Brief Pain Inventory (BPI)
Délai: Day1(Baseline), day 5 after intervention
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0 = "does not interfere" to 10 = "interferes completely" based on the past 24 hours.
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Day1(Baseline), day 5 after intervention
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The Patient Global Impression of Change (PGIC)
Délai: Day1(Baseline), day 5 after intervention
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Single-item structure: It consists of a single question that asks patients to rate how much their condition has changed since a specified baseline.2.7-point response scale: Responses range from "very much improved" (score 1) to "very much worse" (score 7), with intermediate options including "much improved," "minimally improved," "no change," "minimally worse," and "much worse."
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Day1(Baseline), day 5 after intervention
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17-items of Hamilton Depression Rating Scale (HAMD)
Délai: Day1(Baseline), day 5 after intervention
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The HAMD-17 provides a comprehensive, multi-dimensional snapshot of depression severity, heavily emphasizing sleep, physical (somatic), and anxiety symptoms alongside core mood symptoms
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Day1(Baseline), day 5 after intervention
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The Beck Depression Inventory-II (BDI-II)
Délai: Day1(Baseline), day 5 after intervention
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BDI-II is a widely used self-report questionnaire designed to assess the severity of depressive symptoms in adults and adolescents.It consists of 21 items, each describing a specific depressive symptom (e.g., sadness, loss of interest, guilt, fatigue, sleep disturbances, appetite changes).
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Day1(Baseline), day 5 after intervention
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TIS-EEG: Mean Change From Baseline in Resting-State Posterior Alpha-Band Relative Power at Day 5
Délai: Day 1 before the first intervention and Day 5 within 30 minutes after completion of the final intervention
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A 5-minute eyes-closed resting-state electroencephalography recording will be obtained before the first intervention and after the final intervention.
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Day 1 before the first intervention and Day 5 within 30 minutes after completion of the final intervention
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Mean Within-Session Change in Alpha-Band Relative Power During Transcranial Temporal Interference Stimulation on Day 5
Délai: During the 20-minute transcranial temporal interference stimulation session on Day 5
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Electroencephalography will be continuously recorded during the 20-minute transcranial temporal interference stimulation session.
After removal of stimulation-related and physiological artifacts using a prespecified preprocessing procedure, alpha-band relative power will be calculated within the 8-13 Hz frequency range and averaged across all included electroencephalography electrodes.
Relative alpha power will be calculated as alpha-band power divided by total power within the 1-45 Hz frequency range and multiplied by 100.
The within-session change will be calculated as the mean relative alpha power during the final 5 minutes of stimulation minus the mean relative alpha power during the first 5 minutes of stimulation and reported in percentage points.
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During the 20-minute transcranial temporal interference stimulation session on Day 5
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Collaborateurs et enquêteurs
Parrainer
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Début de l'étude
Achèvement primaire (Estimé)
Achèvement primaire
Achèvement de l'étude (Estimé)
Achèvement de l'étude
Dates d'inscription aux études
Première soumission
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Première publication
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour publiée
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
Autres numéros d'identification d'étude
- 2025-1132
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
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