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Effect of Repetitive Transcranial Magnetic Stimulation in Patients with Generalized Anxiety Disorder: An open-label pilot study

Effect of Repetitive Transcranial Magnetic Stimulation in Patients with Generalized Anxiety Disorder: An open-label pilot study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20210507006
Enrollment
20
Registered
2021-05-07
Start date
2021-05-11
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Generalized Anxiety Disorder patients Generalized Anxiety Disorder GAD TMS rTMS Transcranial magnetic stimulation

Interventions

rTMS is performed by using Magstim Rapid2 with total 30 sessions. rTMS is performed 5 sessions/week for 6 weeks. The allowable duration between sessions is no longer than 4 days. In each session, 1-Hz
symptoms or psychotherapy.
Experimental Device,Active Comparator Other
Repetitive Transcranial Magnetic Stimulation,Control group (Standard of care)

Sponsors

Siriraj Research Fund
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Patient with Generalized Anxiety Disorder according to DSM-5 who is interviewed by psychiatrists or psychiatric residents and confirmed by M.I.N.I. 2. Hamilton anxiety rating scale (HAM-A) at least 18 3. Montgomery and Asberg Depression Rating Scale (MADRS) < 20 4. Stable dose of medication treating GAD except for benzodiazepine drugs as needed

Exclusion criteria

Exclusion criteria: 1. Contraindication for rTMS which are history of seizure, using implant pacemaker, using cochlear implant, using metallic implant, using ocular implant and having aneurysmal clip or stent 2. Psychosis within 1 months before participating in research 3. High risk for suicide within 1 months before participating in research 4. Unstable medical condition such as heart failure, coronary heart disease, ischemic or hemorrhagic stroke, or bone fracture 5.Alcohol use disorder/sedative use disorder with acutely abstinent within 1 week before participating in research 6. Cannot use Thai language

Design outcomes

Primary

MeasureTime frame
Response rate (Anxiety) at 30 sessions after rTMS or 6 weeks Reduction of Hamilton Anxiety Rating Scale (HAM-A) at least 50%

Secondary

MeasureTime frame
Remission rate at 30 sessions after rTMS or 6 weeks HAM-A less than 8 ,Anxiety at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Change in HAM-A,Anxiety at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks GAD-7,Depression at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Montgomery-Asberg Depression Rating Scale (MADRS) ,Global impression at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Clinical Global Impression - Severity scale (CGI-S),Global impression of improvement at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Clinical Global Impression of Improvement (CGI-I),Cognitive function at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Thai Mental Status Examination (TMSE), ,Executive function at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Digit Symbol Substitution Test (DSST) ,Sleep quality at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Pittsburgh Sleep Quality Index (PSQI) ,Adverse effect at 10, 20, 30 sessions after rTMS or 2, 4, 6 weeks and follow up at 10 and 18 weeks Reporting

Countries

Thailand

Contacts

Public ContactPeera Chaisirikul

Faculty of Medicine Siriraj Hospital

peera_chaisirigul@hotmail.com6624197777

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026