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Brain ImagingLIFUPNCT03347084

Deep Brain Stimulation with LIFUP for Mild Cognitive Impairment and Mild Alzheimer's Disease

A study testing Excitation and Inhibition in people with Brain Imaging and Mild Cognitive Impairment, run by University of California, Los Angeles at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the proposed study is to determine the feasibility of brief brain stimulation, using a device called Low Intensity Focused Ultrasound Pulsation (LIFUP), for persons with mild cognitive impairment (MCI) or mild (early-stage) Alzheimer's disease (AD). Read more about this study

Who is it for?
Ages 55 years and older
What is being tested?
Excitation and Inhibition
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2 participants
Where
1 siteUnited States
Study dates
10 Nov 2018to 1 Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

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 55 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Mild cognitive impairment or mild (early-stage) AD diagnosis through medical record review
  • Agreement to participate in a clinical and brain imaging study.
  • Age 55 years or older.
  • No significant cerebrovascular disease as determined by a modified Ischemic Score of ≤ 4.
  • Availability of a study partner (next of kin, family member) to attend all visits and to provide surrogate consent should it be determined that the participant does not have capacity.
  • Adequate visual and auditory acuity to allow neuropsychological testing.
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  • Screening laboratory tests and ECG without significant abnormalities that might interfere with the study.
  • Use of cholinesterase inhibitors for AD (Aricept, Namenda, etc.) will be allowed as long as the participant has been on a stable dose for at least two months.
  • There must be a family member or caregiver available to make sure the participant gives informed consent, and in case the participant develops cognitive impairment that interferes with independent study participation.

Who cannot join

  • Evidence of any other major neurologic or other physical illness that could produce cognitive deterioration, except for mild cognitive impairment (MCI) and any history of stroke or diabetes.
  • History of myocardial infarction within the previous year or unstable cardiac disease.
  • Uncontrolled hypertension (systolic BP > 170 or diastolic BP > 100), history of significant liver disease, clinically significant pulmonary disease, diabetes, or cancer.
  • Major psychiatric disorders, such as bipolar disorder or schizophrenia, or persons with current untreated major depression
  • Current diagnosis or significant history of alcoholism or drug dependence.
  • Participants taking medications known to influence cognitive functioning will be excluded. Medications that will be excluded include: centrally active beta-blockers, narcotics, clonidine, anti-Parkinsonian medications, benzodiazepines, systemic corticosteroids, and medications with significant anticholinergic effects, anti-convulsants, or warfarin. During the screening visit, physicians will review all medications and determine whether the type, dose, and interaction of medications are likely to impact cognition and determine exclusion based on these factors.
  • Use of any investigational drugs within the previous month or longer, depending on the drug's half-life.
  • Contraindication for fMRI scan (e.g. metal in body, claustrophobia).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA Semel Institute

    Los Angeles, California, 90095

Other trials in United States

About this study

Official title: Study of Non-Invasive Deep Brain Stimulation with Low Intensity Focused Ultrasound Pulse (LIFUP) for Mild Cognitive Impairment (MCI) and Mild Alzheimer's Disease (AD)

The purpose of the proposed study is to determine the feasibility of brief brain stimulation, using a device called Low Intensity Focused Ultrasound Pulsation (LIFUP), for persons with mild cognitive impairment (MCI) or mild (early-stage) Alzheimer's disease (AD). As a secondary aim, the investigators will explore whether this brief intervention is associated with improvements in cognitive functioning immediately and one week following the intervention.

Subjects will be randomly assigned to one of two experimental groups: either the LIFUP administration will be designed to increase the activity of neurons in a certain part of the brain or decrease the activity of neurons.

The investigators will study up to 8 subjects with MCI or mild AD. Initially, subjects will undergo a screening assessment with a study physician to determine medical and psychiatric history, establish AD diagnosis, and undergo a blood draw, if standard recent labs for dementia and EKG are unavailable. Subjects that meet criteria and agree to participate in the study will undergo a follow-up visit. In the baseline measurement visit, participants will first undergo neuropsychological testing. Participants will be randomly assigned to one of two LIFUP pulsing paradigms. Participants will then be administered four successive LIFUP treatments while the participants are in a functional magnetic resonance imaging (MRI). Sixty minutes following the administration, participants will undergo a second neuropsychological test. A final follow-up assessment will be administered at one week.

Read the detailed description

Alzheimer disease (AD) is a neurodegenerative condition and the most common cause of dementia or a functional impairment in memory and other cognitive abilities. Prior to developing the functional impairment of dementia, patients develop mild cognitive impairment (MCI), which increases the risk for developing the functional impairment of dementia. Deep brain stimulation (DBS) is of interest as a potential therapeutic option for MCI and AD because it can directly target and modulate the activity of brain structures implicated in memory functioning.

Recently there have been multiple reports that DBS of different locations within the brain may be effective in improving symptoms characteristic of dementia (e.g., Heschman et al., 2013). For example, Laxton et al. (2010) performed DBS in the fornix/hypothalamus of six persons with AD in a phase I clinical trial. The investigators hypothesized that stimulation of the fornix would alter the activity of the medial temporal memory circuits, and thus delay and/or reverse memory loss. After 6-12 months, the investigators noted improvement or slowing in the progression of AD in some of the research participants, as measured by two commonly-used assessments of global cognitive function. In a recent literature review, Laxton et al. (2013) also described several additional studies demonstrating that DBS of the fornix or nucleus of Meynert or subthalamic nucleus influences the pathologic neurological circuits involved in AD.

Four separate groups recently have published reports concluding that ultrasound improves amyloid-β clearance in mouse models and restores memory (e.g., Leinenga \& Götz, 2015). This finding raises the question of whether one method of DBS, Low Intensity Focused Ultrasound Pulse (LIFUP), could improve cognition in patients with AD, which is characterized by abnormal deposition of amyloid plaques in brain regions controlling memory and thinking. The use of LIFUP in animal models is well described (Bystritsky et al., 2014). LIFUP is able to penetrate the human skull and reach deep structures within the temporal therapeutic window. The structures that are reachable by LIFUP include the temporal cortices, hippocampus, thalamus, and subthalamic nuclei, all of which are implicated in the pathophysiology of AD. The Food and Drug Administration (FDA) recently approved an investigational device exemption (IDE) to begin a feasibility and safety trial of LIFUP for persons with refractory seizures.

Although symptomatic treatments are available for AD, their modest effects are temporary and there is a need for more effective interventions. In the current project, the investigators propose to use the FDA-approved protocol to:

  1. Determine the feasibility of a brief LIFUP intervention (four stimulations of 30 seconds each, with 2-minute intervals between each treatment) for persons with MCI or mild (early-stage) AD.
  2. As a secondary aim, the investigators will explore whether this brief LIFUP intervention is associated with improvements on neuropsychological measures of cognitive functioning immediately following the intervention.

To investigate these aims, subjects with MCI or mild AD will be enrolled. Subjects will be randomized using a single-blind design, to one of two LIFUP pulsing paradigms in which activity of neurons in a certain part of the brain are either increased. Subjects will then be administered four successive LIFUP treatments while the subjects are in a functional magnetic resonance imaging (MRI). Neuropsychological assessments will be performed at baseline, immediately after LIFUP is administered, and one week following the conclusion of the visit.

Being tested
Excitation, Inhibition
Keywords
DBS, brain imaging, Memory, fMRI
Medical subject headings
Cognitive Dysfunction, Alzheimer Disease

What participants receive

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

  • ExcitationDevice

    Also called Low Intensity Focused Ultrasound Pulse

    Administration of LIFUP, a method of deep brain stimulation, according to excitation paradigms using the following parameters: Tone Burst Duration = 50ms; Pulse Repetition Frequency = 10Hz; ISPTA = 720 mW/cm2. Four treatments of thirty seconds each, with two-minute intervals between treatment (20 minutes, approximately)

  • InhibitionDevice

    Also called Low Intensity Focused Ultrasound Pulse

    Administration of LIFUP, a method of deep brain stimulation, according to inhibition paradigms using the following parameters: Tone Burst Duration = 50ms and Pulse Repetition Frequency = 10Hz. Four treatments of thirty seconds each, with two-minute intervals between treatment (20 minutes, approximately)

Study groups in NCT03347084
Study groupRoleWhat they receive
ExcitationActive comparatorExcitation Paradigm: LIFUP excites the activity of hippocampal neurons.
Receives: Device: Excitation
InhibitionActive comparatorInhibition Paradigm: LIFUP inhibits the activity of hippocampal neurons.
Receives: Device: Inhibition

What is being measured

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

  1. Change from baseline in fMRI brain scan to 40 minutes.

    Functional MRI of the brain will be obtained throughout the LIFUP session for the purposes of image acquisition.

    Measured: 40 Minutes

Secondary outcomes (3)
  1. Change from baseline in Hopkins Verbal Learning Test-Revised45 (HVLT-R)

    The Hopkins Verbal Learning Test-Revised will provide a measure of verbal memory. It requires recall of a series of 12 words over three learning trials, free recall after a 25-minute delay, and a recognition trial. There are 6 equivalent alternate forms.

    Measured: 60 Minutes, 1 Week

  2. Change from baseline in Brief Visual Memory Test-Revised

    The Brief Visual Memory Test-Revised will provide a measure of visual memory. In three learning trials, the respondent views 6 geometric figures for 10 seconds and is asked to draw as many of the figures as possible from memory in their correct location on a page in the response booklet. A Delayed Recall Trial is administered after a 25-minute delay. Last, a Recognition Trial, in which the respondent is asked to identify which of 12 figures were included among the original geometric figures, is administered. There are 6 equivalent alternate forms.

    Measured: 60 Minutes, 1 Week

  3. Change from baseline in Geriatric Anxiety Inventory (GAI)

    Geriatric Anxiety Inventory (GAI) will be used as a measure to ensure that pre-LIFUP/pre-MRI anxiety is not significantly impacting performance on the first neuropsychological assessment.

    Measured: 60 Minutes, 1 Week

Timeline

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

  1. First posted20 Nov 2017
  2. Study start10 Nov 2018
  3. Primary completion31 Mar 2023
  4. Study completion1 Oct 2023

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
Device feasibility
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be randomly assigned to one of two LIFUP pulsing paradigms: one that excites the activity of hippocampal neurons ("Paradigm A"), or a second that inhibits them ("Paradigm B"). The participants will then be administered four successive LIFUP treatments while the participants are in a functional magnetic resonance imaging (MRI).
Masking
Single blind
Who is masked
Participant
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03347084
Sponsor's protocol ID
16-001314
Acronym
LIFUP
Status last verified
Aug 2024
First submitted
15 Nov 2017
Last updated
5 Sep 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • World Health Organization (WHO). Dementia cases set to triple by 2050 but still largely ignored. Geneva, Switzerland; 2012.

  • Prince M, Bryce R, Ferri C. World Alzheimer report. Alzheimer's Disease International; 2011 Sep.

  • Okun MS. Deep-brain stimulation for Parkinson's disease. N Engl J Med. 2013 Jan 31;368(5):483-4. doi: 10.1056/NEJMc1214078. No abstract available.

    PubMed 23363512
  • Halpern C, Hurtig H, Jaggi J, Grossman M, Won M, Baltuch G. Deep brain stimulation in neurologic disorders. Parkinsonism Relat Disord. 2007 Feb;13(1):1-16. doi: 10.1016/j.parkreldis.2006.03.001. Epub 2006 Dec 1.

    PubMed 17141550
  • Mayberg HS, Lozano AM, Voon V, McNeely HE, Seminowicz D, Hamani C, Schwalb JM, Kennedy SH. Deep brain stimulation for treatment-resistant depression. Neuron. 2005 Mar 3;45(5):651-60. doi: 10.1016/j.neuron.2005.02.014.

    PubMed 15748841
  • Greenberg BD, Malone DA, Friehs GM, Rezai AR, Kubu CS, Malloy PF, Salloway SP, Okun MS, Goodman WK, Rasmussen SA. Three-year outcomes in deep brain stimulation for highly resistant obsessive-compulsive disorder. Neuropsychopharmacology. 2006 Nov;31(11):2384-93. doi: 10.1038/sj.npp.1301165. Epub 2006 Jul 19.

    PubMed 16855529
  • Stephen JH, Halpern CH, Barrios CJ, Balmuri U, Pisapia JM, Wolf JA, Kampman KM, Baltuch GH, Caplan AL, Stein SC. Deep brain stimulation compared with methadone maintenance for the treatment of heroin dependence: a threshold and cost-effectiveness analysis. Addiction. 2012 Mar;107(3):624-34. doi: 10.1111/j.1360-0443.2011.03656.x.

    PubMed 21919988
  • Pisapia JM, Halpern CH, Williams NN, Wadden TA, Baltuch GH, Stein SC. Deep brain stimulation compared with bariatric surgery for the treatment of morbid obesity: a decision analysis study. Neurosurg Focus. 2010 Aug;29(2):E15. doi: 10.3171/2010.5.FOCUS10109.

    PubMed 20672917
  • Hescham S, Lim LW, Jahanshahi A, Blokland A, Temel Y. Deep brain stimulation in dementia-related disorders. Neurosci Biobehav Rev. 2013 Dec;37(10 Pt 2):2666-75. doi: 10.1016/j.neubiorev.2013.09.002. Epub 2013 Sep 20.

    PubMed 24060532
  • Hardenacke K, Kuhn J, Lenartz D, Maarouf M, Mai JK, Bartsch C, Freund HJ, Sturm V. Stimulate or degenerate: deep brain stimulation of the nucleus basalis Meynert in Alzheimer dementia. World Neurosurg. 2013 Sep-Oct;80(3-4):S27.e35-43. doi: 10.1016/j.wneu.2012.12.005. Epub 2012 Dec 12.

    PubMed 23246738
  • Fontaine D, Deudon A, Lemaire JJ, Razzouk M, Viau P, Darcourt J, Robert P. Symptomatic treatment of memory decline in Alzheimer's disease by deep brain stimulation: a feasibility study. J Alzheimers Dis. 2013;34(1):315-23. doi: 10.3233/JAD-121579.

    PubMed 23168448
  • Sankar T, Tierney TS, Hamani C. Novel applications of deep brain stimulation. Surg Neurol Int. 2012;3(Suppl 1):S26-33. doi: 10.4103/2152-7806.91607. Epub 2012 Jan 14.

    PubMed 22826807
  • Laxton AW, Lozano AM. Deep brain stimulation for the treatment of Alzheimer disease and dementias. World Neurosurg. 2013 Sep-Oct;80(3-4):S28.e1-8. doi: 10.1016/j.wneu.2012.06.028. Epub 2012 Jun 19.

    PubMed 22722036
  • Vitek JL. Long-term benefit from deep brain stimulation of the subthalamic nucleus: is it for everyone? Alzheimers Res Ther. 2012 May 9;4(3):13. doi: 10.1186/alzrt111.

    PubMed 22574875
  • Smith GS, Laxton AW, Tang-Wai DF, McAndrews MP, Diaconescu AO, Workman CI, Lozano AM. Increased cerebral metabolism after 1 year of deep brain stimulation in Alzheimer disease. Arch Neurol. 2012 Sep;69(9):1141-8. doi: 10.1001/archneurol.2012.590.

    PubMed 22566505

Questions about this trial

What is this clinical trial studying?

A study testing Excitation and Inhibition in people with Brain Imaging and Mild Cognitive Impairment, run by University of California, Los Angeles at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in fMRI brain scan to 40 minutes. (time frame: 40 Minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03347084, which also lists 41 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2024.

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