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A Pilot Study on EEG Characteristics by Pattern Identification Subtypes of Hwabyung

A pilot study on EEG measurements according to each subtype of pattern identifications for Hwabyung

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
CRIS
Registry ID
KCT0011045
Enrollment
200
Registered
2025-09-18
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-11-10

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

Conditions

None listed

Interventions

None listed

Sponsors

Kyung Hee University Oriental Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults aged 19 years or older 2. Participants diagnosed for Hwabyung status using the Hwa-byung Diagnostic Interview Schedule (HBDIS) and the Hwa-byung Scale, according to the following criteria: 1) Hwabyung group: Participants who meet the diagnostic criteria of the HBDIS, score 30 or higher on the Hwa-byung Scale, and are classified into one of the five Hwabyung pattern identification subtypes (liver qi stagnation, liver fire flaming upward, disharmony between heart and kidney, qi and blood deficiency, or phlegm disturbing the gallbladder). 2) Control group: Participants who do not meet the diagnostic criteria of the HBDIS and score below 30 on the Hwa-byung Scale. 3. Participants who voluntarily decide to participate in this clinical study and provide written informed consent after receiving the subject information sheet. 4. Participants willing to comply with the clinical study protocol.

Exclusion criteria

Exclusion criteria: 1. Participants using a cardiac pacemaker. 2. Participants with current or past psychotic symptoms such as delusions or hallucinations. 3. Participants who have ever experienced manic episodes, hypomanic episodes, or mixed episodes. 4. Participants with current or past alcohol or substance abuse/dependence. 5. Participants with medical conditions that may affect Hwabyung-related symptoms. 6. Participants under treatment for liver cancer, liver cirrhosis, chronic renal failure, or congestive heart failure. 7. Participants with neurological or systemic diseases that may affect the central nervous system (e.g., neurocognitive disorders, cerebrovascular disease, Parkinson’s disease, Huntington’s disease, epilepsy, brain tumor, head trauma, hydrocephalus). 8. Pregnant or breastfeeding participants. 9. Participants currently enrolled in another clinical study or who have participated in another clinical study within 30 days prior to screening. 10. Participants deemed inappropriate for participation in this clinical study by the investigator for ethical or scientific reasons.

Design outcomes

Primary

MeasureTime frame
Electroencephalogram

Secondary

MeasureTime frame
Safety;Emotional state assessments (K-BDI-II, K-STAI-YZ, STAXI, PHQ-15, ISI, SRI);Pulse wave measurement;Heart rate variability assessment

Countries

Korea, Republic of

Contacts

Public ContactYunna Kim

Kyung Hee University Oriental Medical Center

yunna.anna.kim@khu.ac.kr+82-2-958-9184

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026