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Alzheimer&Amp;#39;s Disease-related DementiaNCT06835283

Novel Brain Stimulation Treatment for Neuropsychiatric Symptoms in Alzheimer's Disease

A study testing Brain Stimulation in people with Alzheimer&Amp;#39;s Disease-related Dementia and Alzheimer Disease, run by Baylor College of Medicine at 1 site in United States.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record

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Trial summary

The goal of this pilot study is to test a combination of two non-invasive brain stimulation methods, called iTBS (intermittent theta burst stimulation) and tDCS (transcranial direct current stimulation), in people with Alzheimer's Disease (AD) and related dementias (ADRD). Read more about this study

Who is it for?
Ages 65 to 85 years
What is being tested?
Brain Stimulation
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
1 Dec 2026to Aug 2027
Phase
Interventional

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 to 85 years
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • veteran between the ages of 60 to 85
  • clinical diagnosis of mild to moderate Alzheimer's disease or related dementia
  • clinically significant neuropsychiatric symptoms (NPS) evidenced by a score ≥ 2 in at least one domain of the Neuropsychiatric Inventory Questionnaire
  • mild to moderate cognitive impairment demonstrated by a Mini-Mental State Examination (MMSE) score of 15-23
  • have a caregiver who is able and willing to escort the patient to/from clinic visits, answer questionnaires, and assist in the implementation of treatment sessions at home
  • if taking psychotropic medications, demonstrate stability for at least 4 weeks of treatment

Who cannot join

  • any contraindication for MRI
  • any contraindication for iTBS/tDCS including but not limited to seizure disorder, severe cardiovascular disease, history of brain surgery, or stroke involving the cerebral cortex near area of stimulation
  • current alcohol or substance use disorder determined by QuickSCID (nicotine allowed; mild cannabis and alcohol use is allowed)
  • neuropsychiatric symptoms (NPS) that are severe enough to preclude the intervention from being delivered safely and effectively, particularly agitation or aggression.
  • 6) any unstable coexisting medical condition that in the opinion of the principal investigator(s) interferes with the treatment protocol or increase the likelihood of adverse events.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Lane Witkowski Research Coordinator contact

206-419-1261

Lane.Witkowski@va.gov

United States1 site
  • Michael E. DeBakey VA Medical Center

    Houston, Texas, 77030

    Lane Witkowski, 206-419-1261

Other trials in United States

About this study

Official title: Sequential Accelerated ITBS / Remote tDCS for Treatment of Neuropsychiatric Symptoms in Alzheimer's Disease: A Pilot Study

The goal of this pilot study is to test a combination of two non-invasive brain stimulation methods, called iTBS (intermittent theta burst stimulation) and tDCS (transcranial direct current stimulation), in people with Alzheimer's Disease (AD) and related dementias (ADRD). This study will also explore whether the combined treatment shows promise for reducing neuropsychiatric symptoms like mood swings, apathy, and agitation, and will evaluate the impact of the treatment on caregivers.

The main questions the study aims to answer are:

Read more
  1. Is the combined brain stimulation treatment practical and well-tolerated?
  2. Do preliminary results suggest that this treatment could help manage neuropsychiatric symptoms and support a larger study?

Participants will:

  • Attend nine in-person visits over three months.
  • Complete one week of in-clinic brain stimulation sessions (iTBS) followed by four weeks of daily at-home brain stimulation sessions (tDCS).
  • Take part in brain scans, questionnaires, and brain activity tests before and after the treatment.

This pilot study is a first step to assess whether this combined treatment approach is practical and whether it has potential to improve symptoms, laying the groundwork for larger studies in the future.

Read the detailed description

This study is designed to explore a new way to manage behavioral and emotional symptoms in people with Alzheimer's Disease (AD) and related dementias (ADRD). Many people with these conditions experience mood swings, apathy, or agitation, which can be difficult to treat with current medications due to limited effectiveness and side effects. This research is testing whether two types of brain stimulation, called iTBS (intermittent theta burst stimulation) and tDCS (transcranial direct current stimulation), can be combined to provide a non-invasive and potentially effective treatment for these symptoms.

Brain stimulation is already used in other areas of medicine and involves applying gentle magnetic or electrical stimulation to the brain. iTBS uses short bursts of magnetic pulses, while tDCS uses a low electrical current. Both methods are painless, safe, and do not require surgery. This study is the first to look at combining these two techniques for people with AD/ADRD, based on findings from other research that suggest the combination might have stronger effects than either method alone.

Since this is a pilot study, the focus is on understanding whether the treatment process is practical for both patients and caregivers. This includes evaluating how easy it is for participants to attend the clinic sessions, whether caregivers can successfully administer the at-home treatments, and whether the overall process is manageable for families. In addition to these practical questions, researchers will also collect preliminary data to see if the treatment helps improve behavioral symptoms and measure any changes in the brain using scans and brain activity tests.

Participants will spend one week receiving treatments in a clinic and four weeks using a portable device for at-home sessions. Researchers will closely monitor participants throughout the study to ensure safety and will follow up to see if any improvements last after the treatment ends.

The study is an important step in understanding whether this new approach has potential to help people with AD/ADRD and whether it should be studied further in larger trials. It also aims to identify how to make the treatment process as smooth and effective as possible for patients and caregivers.

Being tested
Brain Stimulation
Keywords
Alzheimer's Disease, tDCS, iTBS, brain stimulation, mood swings
Medical subject headings
Alzheimer Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Brain StimulationDevice

    This intervention is distinct because it combines two non-invasive brain stimulation techniques, intermittent theta burst stimulation (iTBS) and transcranial direct current stimulation (tDCS), in a sequential manner. Unlike studies that evaluate these techniques individually, this study explores their combined and complementary effects, with iTBS priming the brain to enhance the subsequent impact of tDCS. The sequential design leverages different mechanisms of action: iTBS delivers magnetic pulses to targeted brain areas to modulate neural activity, while tDCS applies a low electrical current for sustained modulation. This approach specifically targets neuropsychiatric symptoms (e.g., mood swings, apathy, and agitation) in individuals with Alzheimer's Disease and related dementias (ADRD), a population often underserved by traditional interventions. The study also evaluates the feasibility of at-home tDCS administration, making it unique in combining clinical and caregiver-managed treat

Study groups in NCT06835283
Study groupRoleWhat they receive
Brain StimulationOtherParticipants will receive a combination of two non-invasive brain stimulation treatments. During the first week, iTBS sessions will be administered in-clinic for five consecutive days, using magnetic pulses to target brain areas associated with neuropsychiatric symptoms. This is followed by four weeks of daily, self-administered tDCS at home, delivering a low electrical current to modulate brain activity. Participants will complete brain scans and questionnaires at various points to evaluate changes in the brain and symptom severity.
Receives: Device: Brain Stimulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Feasibility of iTBS-tDCS treatment in ADRD patients

    The feasibility of providing sequential iTBS-tDCS treatment to ADRD patients with neuropsychiatric symptoms is a primary focus. Feasibility will be assessed mainly through rates of by recruitment, retention and adherence. Recruitment rate is the number of enrolled patients divided by the total number of patients who initially approached the study or had interest in it. Retention rate is the percentage of patients who complete the entire study out of the initial enrolled participants, and then adherence rate is the number of completed iTBS and tDCS sessions divided by the total prescribed treatment sessions. Since feasibility is being evaluated as the primary aim instead of efficacy, there is no randomization or probability of group assignment. Each and every subject will undergo the same treatment stimulation process, as they will all have 1 week of in-clinic iTBS sessions and then four weeks of at-home tDCS sessions.

    Measured: From enrollment until the end of treatment at 5 weeks

  2. Tolerability of iTBS-tDCS treatment in ADRD patients

    The tolerability of providing sequential iTBS-tDCS treatment to ADRD patients with neuropsychiatric symptoms. Tolerability will be evaluated based on the frequency and severity of adverse events reported during the intervention period. These findings will inform the design and implementation of a larger clinical trial.

    Measured: From enrollment until the end of treatment at 5 weeks

Secondary outcomes (3)
  1. Neuropsychiatric Symptoms

    We will gather preliminary data on the potential effects of iTBS-tDCS on neuropsychiatric symptoms in individuals with Alzheimer's Disease and related dementias, as determined by changes in standardized neuropsychiatric symptom questionnaires pre- and post-treatment.

    Measured: From enrollment until the end of treatment at 5 weeks

  2. Caregiver burden

    We will also explore the potential impact of the treatment on caregiver burden using caregiver-reported outcomes collected before and after the intervention. The total score of caregiver burden will involve the sum of the responses to all items on the Zarit Burden Interview assessment, and these scores are rated on a Likert scale of 0-4. This total score quantifies the level of caregiver burden, as high scores will indicate greater burden. Descriptive statistics; such as mean, median, and standard deviation-will summarize the overall caregiver burden within the study sample. Other factors associated with determining caregiver burden include inferential statistical methods like multiple regression analysis or ANOVA, as these will be used to examine connections between ZBI scores and variables such as patient cognitive function, treatment compliance, and demographic factors.

    Measured: At baseline (week 0) and post-treatment (week 6)

  3. Brain connectivity through MRI

    We can observe potential changes in brain connectivity through functional MRI scans conducted pre- and post-treatment, to inform hypotheses for future studies. The MRI will be used to obtain baseline images and neuromodulation-induced changes of brain structure as well as functional connectivity, particularly in the default mode and salience networks.

    Measured: At baseline visit (week 0) and post-treatment (week 6)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Feb 2025
  2. Study start1 Dec 2026 (estimated)
  3. Primary completionJul 2027 (estimated)
  4. Study completionAug 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
This study investigates a novel approach to managing neuropsychiatric symptoms in Alzheimer's Disease and related dementias using a sequential brain stimulation model. The study combines two techniques: intermittent theta burst stimulation (iTBS) and transcranial direct current stimulation (tDCS). The process begins with in-clinic iTBS sessions to "prime" the brain, potentially enhancing its plasticity and receptiveness to subsequent treatments. This is followed by four weeks of at-home tDCS sessions, administered with caregiver assistance. The sequential use of these treatment methods is based on research suggesting that combining techniques may amplify therapeutic effects. The study aims to evaluate both the feasibility of this approach and its potential effects on symptoms and brain function, providing insights for future larger clinical trials.
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06835283
Sponsor's protocol ID
H-56426
Status last verified
Oct 2026
First submitted
13 Dec 2024
Last updated
5 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Ahn H, Sorkpor S, Miao H, Zhong C, Jorge R, Park L, Abdi S, Cho RY. Home-based self-administered transcranial direct current stimulation in older adults with knee osteoarthritis pain: An open-label study. J Clin Neurosci. 2019 Aug;66:61-65. doi: 10.1016/j.jocn.2019.05.023. Epub 2019 May 29.

    PubMed 31153751

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