Network-Guided Theta Burst Stimulation for Breast Cancer With Chemotherapy-Induced Peripheral Neuropathy: Clinical and fMRI Biomarker Evidence (CIPN TBS)
Chemotherapy-induced peripheral neuropathy (CIPN) is a common and debilitating complication among breast cancer survivors, frequently associated with chronic neuropathic pain that remains inadequately controlled by pharmacological treatments. Emerging evidence suggests that CIPN pain is related to maladaptive reorganization of pain-related brain networks, highlighting the potential of non-pharmacological, brain-based neuromodulation strategies.
Among the variants of theta burst stimulation (TBS), both prolonged constant theta burst stimulation (pcTBS) and intermittent theta burst stimulation (iTBS) have facilitating effects of cortical excitability. The treatment time for pcTBS (1 min and 44 s, 1200 pulses) is much shorter than that of iTBS and traditional repetitive transcranial magnetic stimulation (rTMS); therefore, pcTBS seems to be a promising neuromodulation method for chronic pain and head-to-head comparison between pcTBS and iTBS has never been done before.
The aim of this two-year randomized, cross-over trial project is 1) to compare the effects of pcTBS and iTBS and determine the optimal TBS paradigm for alleviating CIPN pain a sequential focus on distinct cortical targets; 2) to implement a prospectively defined, network-guided framework using fMRI to characterize sensorimotor and pain-related brain connectivity and to examine whether baseline network features and stimulation-induced connectivity changes moderate clinical outcomes.
In Year 1, 20 breast cancer patients with CIPN will be recruited and randomly assigned to two groups: Group I will initially receive pcTBS over M1 for 5 consecutive days and then iTBS over M1 after a 8-week "wash-out" period. Group II will initially receive iTBS over M1 for 5 consecutive days and then pcTBS over M1 after a 8-week "wash-out" period. In year 2, the stimulation target will be changed to dorsolateral prefrontal cortex (DLPFC) to evaluate analgesic effects, and associated brain network changes related to cognitive-affective pain modulation.
MRI-based neuronavigation will be used to ensure precise and reproducible stimulation targeting. Both resting-state and task-based functional MRI will be acquired before stimulation and used prospectively to identify individualized pain-relevant cortical hotspots within predefined anatomical regions (M1 or DLPFC). Resting-state fMRI will be repeated within 24 hours after the final stimulation session to evaluate treatment-related changes in brain networks. Pain intensity measured by the visual analog scale will serve as the primary outcome, with secondary outcomes including Neuropathic Pain Symptom Inventory, Depression Anxiety Stress Scale 21 and pressure pain threshold testing. Primary and secondary outcomes will be evaluated immediately after the last stimulation session and again at 4-week follow-up.
By integrating a clinically efficient trial design with network-informed neuroimaging, this project is expected to provide target-specific evidence for TBS in CIPN pain and to establish a foundation for future precision-guided neuromodulation studies.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Yi-shiung Horng, MD., PhD.
- Telefonnummer: 886-2-66289779
- E-mail: yshorng2015@gmail.com
Studiesteder
-
-
-
New Taipei City, Taiwan
- Taipei TzuChi Hospital
-
Kontakt:
- Clinical Research Center
- Telefonnummer: 886266289779
- E-mail: xd-clinical@tzuchi.com.tw
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- a. breast cancer patients aged between 20- and 80-years-old with CIPN b. history of receiving chemotherapy including taxane-based neurotoxic agents c. with neuropathic pain, score≥3 in a 0-10 VAS pain scale. d. with fair cognition and can cooperate to evaluate pain severity. e. neither at end-stage cancer nor at the estimated survival time less than 6 months.
Exclusion Criteria:
- a. brain tumor or history of epilepsy b. intracranial metallic devices, artificial cochleae, pacemakers, or any other metal device c. recent myocardial ischemia or unstable angina d. severe cognitive dysfunction or pregnancy e. injuries or fractures in the part of neuropathic pain
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Tredobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Group I
Group I will initially receive pcTBS over M1 for 5 consecutive days and then iTBS over M1 after a 8-week "wash-out" period
|
Intermittent TBS (iTBS) applies 2 s of TBS trains repeated every 10 s for a total of 20 cycles (600 pulses, total 190 s) and increases cortical excitability for at least 20 min.
pcTBS consisted of three pulses at 50 Hz (i.e., 60 ms) repeated 400 times at intervals of 200 ms (a total of 1,200 pulses in 1 min and 44 s)
|
|
Aktiv komparator: Group 2
Group II will initially receive iTBS over M1 for 5 consecutive days and then pcTBS over M1 after a 8-week "wash-out" period
|
Intermittent TBS (iTBS) applies 2 s of TBS trains repeated every 10 s for a total of 20 cycles (600 pulses, total 190 s) and increases cortical excitability for at least 20 min.
pcTBS consisted of three pulses at 50 Hz (i.e., 60 ms) repeated 400 times at intervals of 200 ms (a total of 1,200 pulses in 1 min and 44 s)
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Visual analogue pain scale (VAS)
Tidsramme: before the first and after the fifth rTMS session in each treatment period
|
Patients will be instructed to rate their mean daily pain on a 0-100 visual analogue pain scale (VAS).
|
before the first and after the fifth rTMS session in each treatment period
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Neuropathic Pain Symptom Inventory
Tidsramme: before and after 5-day treatment section
|
NPSI is comprised of five subscales for assessing the diverse symptoms of neuropathic pain, including burning spontaneous pain (burning), pressing spontaneous pain (pressing), paroxysmal pain (paroxysmal), evoked pain (evoked), and paresthesia/dysesthesia.
|
before and after 5-day treatment section
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
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
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 15-IRB011
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .