- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07592169
Confirmatory Trial of Gamma Neurofeedback to Improve Working Memory in Schizophrenia
Confirmatory Efficacy Trial to Confirm the Effects of Gamma EEG-Neurofeedback on Working Memory in Schizophrenia
연구 개요
상세 설명
Schizophrenia is associated with deficits in gamma frequency (30-45 Hz) neural synchrony and working memory that are resistant to antipsychotic treatment. EEG neurofeedback (EEG-NFB) targeting frontal gamma coherence is a non-invasive approach that may restore gamma synchrony and improve working memory by reinforcing endogenous neural oscillations in real time.
This confirmatory RCT builds on a successful pilot trial (R33) demonstrating feasibility and preliminary efficacy of gamma EEG-NFB in schizophrenia. Participants (N=104) are randomized 1:1 to active gamma EEG-NFB or sham EEG-NFB. Active EEG-NFB delivers real-time feedback of frontal gamma coherence (F3/F4, 30-50 Hz) via a CGX wireless headset. Sham participants undergo identical procedures but receive pre-recorded feedback unrelated to their own brain activity. Both groups complete 30 sessions over 12 weeks (two sessions per week).
Co-primary outcomes are working memory (N-back d-prime) and frontal gamma coherence, assessed at baseline and Week 12. Secondary outcomes include global cognition, symptoms (PANSS), negative symptoms (CAINS), and community functioning (ILSS, UPSA-Brief, SFS). Follow-up assessments are conducted at 3 months (Week 24) and 6 months (Week 36) post-treatment. Primary analysis uses mixed model repeated measures (MMRM).
연구 유형
등록 (추정된)
단계
- 2 단계
연락처 및 위치
연구 연락처
- 이름: Autumn Harris Study Coordinator
- 전화번호: 858-267-2257
- 이메일: fnlab@health.ucsd.edu
연구 연락처 백업
- 이름: Jason Holden Lab Manager, PhD
- 전화번호: 858-267-2257
- 이메일: fnlab@health.ucsd.edu
참여기준
자격 기준
공부할 수 있는 나이
- 성인
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- 1. DSM-5 diagnosis of schizophrenia or schizoaffective disorder, confirmed by the Structured Clinical Interview for DSM-5 (SCID-5) 2. Age 18-55 years 3. Clinically stable: no psychiatric hospitalization in the 3 months prior to enrollment 4. No change in antipsychotic medication type or dosage within 4 weeks prior to baseline assessment 5. Ascertained to be clinically and medically stable by a study investigator 6. Does not meet DSM-5 diagnostic criteria for bipolar disorder or current major depressive episode 7. No electroconvulsive therapy (ECT) within 6 months of baseline assessment 8. Able to read and speak English (corrected vision or hearing aids acceptable) 9. Able and willing to provide written informed consent
Exclusion Criteria:
- 1. Self-reported history of seizure disorder 2. Diagnosed with multiple sclerosis 3. History of stroke or major vascular disease, including insulin-dependent diabetes mellitus 4. HIV/AIDS diagnosis 5. Current (not past) major depressive episode 6. Substance use disorder other than nicotine use disorder or caffeine use disorder in the past year 7. Brain cancer (primary or metastatic) 8. Prior head injury involving loss of consciousness 9. Inability to read or speak English 10. Color blindness that interferes with administration of study assessments 11. Neuropsychological or cognitive testing in the past 6 months using the same measures as this study 12. Score on Letter-Number Sequencing greater than 1 standard deviation above the age-normed mean
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 삼루타
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Gamma EEG-NFB
Participants receive real-time gamma EEG neurofeedback targeting frontal gamma coherence (F3 and F4 electrodes, 30-50 Hz) via a CGX wireless 32-electrode headset.
Each session includes a 1-minute resting baseline followed by two 15-minute training blocks.
Positive reinforcement (images and music) is contingent on meeting an individualized gamma coherence threshold.
Sessions are twice weekly for 12 weeks (30 total sessions).
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Gamma EEG neurofeedback delivered via CGX/Cognionics wireless headset (FDA cleared for research use).
Active arm receives real-time gamma coherence feedback; sham arm receives pre-recorded feedback unrelated to own brain activity.
다른 이름들:
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가짜 비교기: Sham EEG-NFB
Participants undergo identical procedures to the active arm including EEG electrode placement and the same session structure, twice weekly for 12 weeks.
However, the feedback displayed is pre-recorded from prior participants and has no relationship to the participant's own brain activity.
Participants and outcome assessors are blinded to group assignment.
|
Gamma EEG neurofeedback delivered via CGX/Cognionics wireless headset (FDA cleared for research use).
Active arm receives real-time gamma coherence feedback; sham arm receives pre-recorded feedback unrelated to own brain activity.
다른 이름들:
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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N-back 2-back target accuracy (d-prime)
기간: Baseline to Week 12
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Working memory performance on the N-back task (2-back condition), analyzed with mixed model repeated measures (MMRM).
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Baseline to Week 12
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Frontal gamma coherence during N-back task
기간: Baseline to Week 12
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EEG-derived frontal gamma coherence (30-50 Hz, F3-F4) measured during 2-back task performance.
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Baseline to Week 12
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Independent Living Skills Survey (ILSS) total score
기간: Baseline to Week 12
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Functional outcome assessing independent living skills relevant to community functioning.
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Baseline to Week 12
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공동 작업자 및 조사자
수사관
- 수석 연구원: Fiza Singh, MD, University of California, San Diego
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- R01MH139831
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
IPD 공유 기간
IPD 공유 액세스 기준
IPD 공유 지원 정보 유형
- 연구_프로토콜
- 수액
- ICF
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
미국에서 제조되어 미국에서 수출되는 제품
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