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Precuneus Mapping With Sinaptistim® (an Investigational TMS-EEG System) in Mild to Moderate AD Patients

21. september 2026 opdateret af: Sinaptica Therapeutics, Inc.

Transcranial magnetic stimulation (TMS), electroencephalography (EEG), and combined TMS-EEG approaches have been used in human research to characterize cortical excitability and network-level neurophysiologic responses. The SinaptiStim System is an investigational integrated TMS-EEG platform designed to synchronize TMS delivery, EEG acquisition, and is intended to support standardized characterization of neurophysiologic responses and individualized mapping of stimulation parameters relevant to later therapeutic use.

The rationale for this early single-site, non-treatment study is to obtain initial clinical evidence that the investigational device can be used safely and as intended in participants with mild to moderate Alzheimer's disease (AD), can acquire EEG data of sufficient quality for the planned application, and can be implemented operationally at the clinical site with appropriate training and usability prior to launch of a larger treatment trial.

The study involves two visits, a screening visit with magnetic resonance imaging (MRI) followed by a TMS-EEG mapping visit. Participants who complete this study successfully may be invited to provide informed consent for screening and potential enrollment in a future treatment protocol. This study does not include randomization or a sham control group or therapeutic treatment.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

30

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

65 år til 85 år (Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients 65-85 years of age with mild (stage 4) or moderate (stage 5) AD

Beskrivelse

Inclusion Criteria:

  • Must have a reliable study partner with at least 10 hours per week of direct or indirect contact. The study partner must be willing and able to provide informed consent, participate in the study visits and provide information for protocol-required assessments.
  • Participant and study partner must each provide signed informed consent before initiation of any study-specific assessments or procedures.
  • 65 to 85 years of age
  • Stable non-AD medications for at least 4 weeks before signing informed consent
  • If treated with a cholinesterase inhibitor for symptoms related to Alzheimer's disease, the dose must be stable for at least 12 weeks before signing informed consent.
  • Documented cognitive impairment with decline in memory for more than 6 months before signing informed consent
  • Clinical stage 4 or 5 Alzheimer's disease with biological confirmation
  • MMSE score 18 to 26 inclusive at Screening
  • Screening CDR Global Score of 0.5 to 2.0, with CDR Memory Box score of at least 0.5 plus one additional domain Box score of at least 0.5

Exclusion Criteria:

  • Any contraindication to MRI required by the protocol, including non-compatible implanted metal or electronic devices, ferromagnetic intracranial or other unsafe metallic implants, severe claustrophobia not manageable per site practice, or any other condition making MRI unsafe or not feasible.

  • Current participation in another interventional clinical study, or receipt of any investigational drug, biologic, or device within 3 months before signing informed consent.

  • Prior treatment with an anti-amyloid monoclonal antibody for Alzheimer's disease that is:

    • Less than 6 months of continuous treatment immediately before informed consent, or
    • Not at a stable label-recommended maintenance dose/maximally tolerated dose, or
    • Interrupted for > 8 consecutive weeks during that 6-month period, or
    • Associated at any time prior to informed consent with ARIA-E or ARIA-H (including microhemorrhage, superficial siderosis, or macro hemorrhage) that resulted in temporary or permanent interruption, delay, or discontinuation of anti-amyloid monoclonal antibody treatment.
  • Current use of, or plan to initiate any brain stimulation therapy before completion of this study.

  • Current use of medications that may alter cortical excitability, seizure threshold, sedation, or interpretation of treatment response.

  • Clinical history, laboratory findings, or neuroimaging findings consistent with any significant clinical neurodegenerative or neurologic disorder, cerebrovascular disease, structural intracranial abnormality or central nervous system lesion that may increase risk with TMS or confound study assessments.

  • History of seizure disorder, epilepsy, unprovoked seizure, or any seizure considered by the investigator to indicate increased risk with TMS.

  • Any condition that, in the opinion of the investigator, makes the participant unsuitable for the study, including inability to comply with study requirements.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Observational Mild to Moderate AD Cohort

We will enroll up to 30 adults, age 65 to 85, with clinical stage 4 or 5 AD including biological confirmation. Eligible participants will have a MRI and complete a TMS-EEG mapping session.

A non-therapeutic transcranial magnetic stimulation (TMS) combined with electroencephalography (EEG) assessment to evaluate cortical excitability and network-level brain responses.

Andre navne:
  • SinaptiStim System

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of participants with quality EEG recordings
Tidsramme: Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort

Proportion of enrolled participants with successful completion of the protocol-defined device mapping procedure and acquisition of EEG data meeting predefined quality criteria

Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Procedural safety and device-related events
Tidsramme: Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort

Incidence of device-related adverse events, adverse device effects, serious adverse events, and device deficiencies observed during the study visit and immediate post-procedure period.

Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort
Proportion of completed TMS-EEG mapping sessions
Tidsramme: Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort

Proportion of attempted sessions completed per protocol without major technical failure and with EEG data meeting predefined technical quality criteria.

Enrollment through study completion, approximately 6 weeks per participant and 6 months for entire study cohort
Critical-task Success Ratings from Site Staff
Tidsramme: Study start through study closeout, approximately 6 months

Site staff critical-task success and structured ratings of ease of use, workflow fit, and training adequacy. This will be assessed via clinician and technician interviews using sponsor developed questionnaires and interviews.

Study start through study closeout, approximately 6 months
Screening, eligibility, and enrollment feasibility
Tidsramme: Study start through study closeout, approximately 6 months.

Number screened, number eligible, number enrolled, proportion eligible, and reasons for screen failure or non-enrollment.

Study start through study closeout, approximately 6 months.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Studiestol: Giacomo Koch, MD, PhD, Sinaptica Therapeutics, Inc.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. april 2027

Studieafslutning (Anslået)

1. april 2027

Datoer for studieregistrering

Først indsendt

16. september 2026

Først indsendt, der opfyldte QC-kriterier

21. september 2026

Først opslået (Faktiske)

25. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • ST-902

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

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