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Single Session Personalized Aperiodic Transcranial Alternating Current Stimulation (PandA-tACS) for Antenatal Depression (PandA)

1 de setembro de 2026 atualizado por: University of North Carolina, Chapel Hill

Single Session Personalized Aperiodic Transcranial Alternating Current Stimulation (PandA-tACS) for Antenatal Depression: A Randomized, Sham-Controlled Trial (R61 Phase)

The purpose of this pilot trial is to primarily assess safety, feasibility, and tolerability of PandA-tACS in antenatal depression and determine whether a single PandA-tACS session produces greater left dlPFC aperiodic slope flattening (reduction) from pre- to post-stimulation than IAF-tACS and sham.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

The purpose of this study is to evaluate the safety, feasibility, tolerability, and brain effects of a single session of a personalized form of non-invasive brain stimulation called PandA-tACS in individuals with antenatal depression. PandA-tACS uses each participant's own EEG activity to create an individualized stimulation waveform. Participants will be females aged 18-45 years who are 14-32 weeks pregnant with a viable, low-risk singleton pregnancy and meet criteria for unipolar, non-psychotic major depressive disorder. Participants must be at low suicide risk, and be able to complete study procedures.

Participants will complete screening, informed consent, clinical assessments, pregnancy safety review, and high-density EEG recordings. Eligible participants will attend one in-person stimulation visit and will be randomized to receive PandA-tACS, individualized alpha-frequency tACS, or sham stimulation. Stimulation will be delivered through scalp electrodes while participants are monitored by trained study staff. EEG, symptom ratings, blood pressure, pre-natal safety checks, and adverse event monitoring will be completed before and/or after stimulation. Optional MRI may be completed for electric-field modeling. Pregnancy and birth outcomes will be reviewed through the medical record.

Tipo de estudo

Intervencional

Inscrição (Estimado)

60

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

  • Aged 18 - 45
  • Capacity to understand all relevant risks and potential benefits of the study as determined by study staff (provision of informed consent) Stated willingness to comply with all study procedures and availability for the duration of the study
  • Low suicide risk (defined for this study as no active suicidal ideation in the past month and no suicide attempts, preparatory actions, or significant non-suicidal self-harm in the previous 2 years). Risk will be assessed utilizing the C-SSRS screen and triage version with further exploration of positive responses.
  • Between weeks 14-32 of viable singleton pregnancy
  • Currently meet DSM-5 criteria of unipolar, non-psychotic MDD which is confirmed by the DIAMOND
  • HDRS-17 score ≥8

Exclusion Criteria:

  • DSM-5 diagnosis of severe alcohol use disorder (AUD) within the last 12 months, as evidenced by the DIAMOND
  • DSM-5 diagnosis of moderate to severe substance use disorder (excluding tobacco) within the last 12 months, as evidenced by the DIAMOND
  • Lifetime history of bipolar disorder, as evidenced by DIAMOND
  • Schizophrenia spectrum and other psychotic disorders, as evidenced by DIAMOND
  • History of autism spectrum disorder
  • Initiated any new psychotropic medication in the 6 weeks prior to screening or had a dose change or discontinuation in the preceding 6 weeks
  • Initiated a new course of psychotherapy in the 6 weeks preceding screening
  • Received any neurostimulation treatment in the 6 weeks preceding screening
  • History of seizures (excluding febrile seizures in childhood or Electroconvulsive Therapy (ECT) induced seizures)
  • Neurological disorders that would increase risk of participation or present a significant confounder in the opinion of the investigator (for example, dementia, history of stroke, Parkinson's disease, multiple sclerosis, history of traumatic brain injury with prolonged loss of consciousness, ruptured cerebral aneurysm, previous CNS radiation)
  • Previously failed to respond to ECT or transcranial magnetic stimulation (TMS)
  • Prior brain surgery and/or brain implants
  • Implanted medical device that uses electricity
  • Currently enrolled in another clinical trial for depression

History of any of the following conditions:

  • Diabetes (gestational or general history)
  • Pre-term delivery (<37 weeks)
  • Eclampsia
  • Pre-eclampsia with severe features
  • Asthma requiring daily medication
  • Chronic hypertension
  • Immune thrombocytopenia (ITP)
  • Hyperthyroidism requiring medication
  • Pre-pregnancy BMI 40 or more
  • In vitro fertilization (IVF)
  • Mullerian anomaly of uterus
  • Organ transplant
  • Prior history of deep vein thrombosis/pulmonary embolism (DVT/PE) or plan for anticoagulation during pregnancy
  • Fetus with autoimmune hydrops
  • Abnormal placenta

Current pregnancy:

  • HIV/Hep B/Hep C with detectable viral loads
  • Anemia [Hemoglobin under 11.0] upon entry to pre-natal care
  • No scheduled pre-natal visits by 15 weeks
  • Placenta previa
  • Placenta accreta spectrum (PAS)
  • Pre-eclampsia
  • Gestational diabetes
  • Gestational hypertension
  • Fetus with abnormal chromosomes
  • Cervical length < 2.5 cm
  • Presence of cerclage or vaginal progesterone to decrease chance of pre-term labor
  • Fetal growth restriction
  • Macrosomia
  • Polyhydramnios
  • Oligohydramnios
  • Rupture of membranes
  • Hyperemesis Gravidarum (HEG)
  • Confirmation testing for Tri 13/18/21
  • Congenital anomalies on anatomy ultrasound that do not resolve with follow-up ultrasound

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Ciência básica
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Triplo

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Comparador Falso: Inactive Sham (placebo)
Participants will receive sham tACS. Sham stimulation mimics all procedures used in active stimulation.
Participants will be fitted with the same electrode setup and receive sham (placebo) tACS delivered using the neuroConn DC Stimulator MC.
Comparador Ativo: Active IAF-tACS: Experimental Arm
Participants will receive active IAF-tACS delivered at the participant's individual alpha frequency, as measured by EEG. 2mA will be delivered at Cz, and 1 mA (antiphase) split between F3/F4 (in phase). IAF-tACS is delivered in 4 x blocks of 10 min, separated by 2 min HD-EEG.
Participants will be fitted with the same electrode setup and receive IAF-tACS delivered using the neuroConn DC Stimulator MC.
Experimental: Active PandA-tACS: Experimental Arm
Participants will receive active PandA-tACS delivered with the participant's flatter aperiodic slope, as measured by EEG. 2mA will be delivered at Cz, and 1 mA (antiphase) split between F3/F4 (in phase). PandA-tACS is delivered in 4 x blocks of 10 min, separated by 2 min HD-EEG.
Participants will be fitted with the same electrode setup and receive PandA-tACS delivered using the neuroConn DC Stimulator MC.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Safety via the presence of any serious AEs
Prazo: Day 1 to within 90 days of expected delivery date.
The number of serious adverse events (SAEs) deemed at least potentially related to PandA-tACS.
Day 1 to within 90 days of expected delivery date.
Tolerability of PandA-tACS
Prazo: Immediately after intervention
Proportion of participants reporting stimulation intolerance or unable to complete stimulation due to tolerability.
Immediately after intervention
Feasibility of PandA-tACS
Prazo: Through completion of the study, roughly 2 years
Total number of enrolled participants. Must be at least 45 overall, and 15 per group.
Through completion of the study, roughly 2 years
Change in aperiodic slope in the dlPFC region.
Prazo: Immediately before and after 40 minutes of stimulation (on single interventional session day).
Pre- to post-stimulation change in left dorsolateral prefrontal cortex (dlPFC) aperiodic slope (beta coefficient/exponent) derived from resting high-density (HD-EEG). The endpoint will be compared for PandA-tACS versus IAF-tACS and sham.
Immediately before and after 40 minutes of stimulation (on single interventional session day).

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Correlation between modeled left dorsolateral prefrontal cortex (dlPFC) electric field strength and pre- to post-stimulation change in left dlPFC aperiodic slope
Prazo: Immediately before and after 40 minutes of stimulation (on single interventional session day).
Within the PandA-tACS group, correlation between modeled left dlPFC electric field strength and pre- to post-stimulation change in left dlPFC aperiodic slope.
Immediately before and after 40 minutes of stimulation (on single interventional session day).

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Colaboradores

Investigadores

  • Investigador principal: Flavio Frohlich, PhD, University of North Carolina, Chapel Hill

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de setembro de 2026

Conclusão Primária (Estimado)

1 de junho de 2028

Conclusão do estudo (Estimado)

1 de junho de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

26 de agosto de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

1 de setembro de 2026

Primeira postagem (Real)

2 de setembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

2 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

1 de setembro de 2026

Última verificação

1 de agosto de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • 26-1564
  • R61MH144538 (Concessão/Contrato do NIH dos EUA)

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

SIM

Descrição do plano IPD

This study will collect 128-channel high-density electroencephalography (HD-EEG) data, clinician and self-report assessments relating to depression and other mood symptoms, diagnostic interviews relating to psychiatric disorders, medical chart information including current and past medical history in relation to general medical history, pregnancy and birth outcome information, and psychiatric history; anatomical MRI data, intervention experience questionnaires including tolerability and blinding questionnaires, demographic data, blood pressure at each intervention visit, and daily self-reported prenatal symptoms. The investigators will share de-identified HD-EEG, MRI, safety, feasibility, and tolerability data, symptom ratings, intervention experience questionnaires, demographic data, blood pressure and pre-natal symptoms. Data will be available on the NIMH Data Archive (NDA) per NIMH policies, and also the Open Science Framework (open source) labelled under the appropriate NCT number.

Prazo de Compartilhamento de IPD

Research participant data (e.g., demographics [age, sex], symptom ratings [DSM-5 Cross Cutting Symptom Measure, WHODAS, GAD-7, PHQ-9], blood pressure, pre-natal symptoms, intervention experience questionnaires, safety, feasibility, and tolerability data) on a 6-month schedule starting one year after receipt of award as required by the NDA. MRI imaging data, and raw and pre-processed electroencephalography data will be shared upon completion of the award. Code created as part of this award will be uploaded to GitHub upon relevant publication. The NIMH NDA has standard processes in place for the request of data use and will arbitrate which requests to allow. The scientific data will be made available for at least as long as required by applicable data repository policies.

Critérios de acesso de compartilhamento IPD

Data will be findable and identifiable through the NDA Collection associated with this award. NDA collections have digital object identifiers (DOIs), making them easy to locate. The investigators will upload a data dictionary alongside relevant data. Code created as part of this award will be uploaded to GitHub upon relevant publication

Tipo de informação de suporte de compartilhamento de IPD

  • PROTOCOLO DE ESTUDO
  • SEIVA
  • ANALYTIC_CODE

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

produto fabricado e exportado dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .