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Implementering af mangefacetterede patientcentrerede behandlingsstrategier til intensiv blodtrykskontrol for at minimere kognitiv tilbagegang (IMPACTS-MIND)

28. september 2026 opdateret af: Katherine T Mills, Tulane University

Effektiviteten af ​​at implementere en intensiv blodtryksreduktionsintervention mod kognitiv tilbagegang hos lavindkomst- og minoritetshypertensive patienter

The study will test a multifaceted strategy for implementing an intensive blood pressure intervention protocol targeting systolic BP <120 mmHg on cognitive decline in racial minority and low-income hypertensive patients in primary care. The proposed study will generate urgently needed data on effective, adoptable, and equitable intervention strategies to reduce blood pressure-related cognitive decline in low- income and minority populations. If proven effective, the implementation strategy for intensive blood pressure reduction could be adapted and scaled up in diverse primary care settings to prevent cognitive decline and clinical dementia.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

African American and low-income populations bear a disproportionate burden of dementia and have been underrepresented in trials of cognitive impairment. The Systolic Blood Pressure Intervention Trial (SPRINT) showed that an intensive blood pressure (BP) intervention (target systolic BP <120 mmHg) lowered the risk of cognitive impairment compared to a standard BP intervention (systolic BP target <140 mmHg). The next important step is to determine how the successful SPRINT intensive blood pressure intervention can be implemented in a real-world clinic setting to prevent cognitive decline. The overall objective of the proposed study is to test a multifaceted strategy for implementing an intensive BP intervention protocol adapted from SPRINT targeting systolic BP <120 mmHg on cognitive decline in racial minority and low-income hypertensive patients in resource-constrained primary care practices in Louisiana and Mississippi. The RE-AIM (Reach Effectiveness Adoption Implementation Maintenance) framework has been used to guide the development and evaluation of the multifaceted implementation strategy, including protocol-based treatment that employs the SPRINT stepped-care intensive BP management algorithm, dissemination of SPRINT findings, shared- decision making, team-based collaborative care, BP audit and feedback, home BP monitoring, and patient health coaching. Building on the ongoing Implementation of Multifaceted Patient-Centered Treatment Strategies for Intensive Blood Pressure Control (IMPACTS-BP) trial, the investigators will cost-effectively conduct a cluster- randomized trial in 40 primary care clinics that serve low-income populations in Louisiana and Mississippi. The primary outcome in the proposed trial is the net difference in mean change of global cognitive composite z-score from baseline to an average of 36 months between the intervention and enhanced usual care groups. Secondary outcomes include net difference in mean change of executive function and memory composite z-scores, systolic and diastolic BP, adverse effects, and quality of life. Implementation outcomes, including acceptability, adaptation, adoption, feasibility, fidelity, penetrance, and cost-effectiveness, will also be collected and used to improve intervention delivery during the trial. The proposed trial, with a sample size of 40 clinics (31.5 patients/clinic), has 93% statistical power to detect a 0.30 or higher difference in the global cognitive composite z-score at a 2-sided significance level of 0.05 assuming 20% loss to follow-up and an intra-cluster correlation of 0.05. In a meta-analysis of 5 clinical trials, the pooled effect size was 0.35 (95% CI 0.32, 0.38) for the global cognitive composite z-score. This study will generate urgently needed data on effective, adoptable, and equitable intervention strategies to reduce blood pressure-related cognitive decline in low-income and minority populations. If proven effective, the implementation strategy for intensive blood pressure reduction could be adapted and scaled up in diverse primary care settings to prevent cognitive decline and clinical dementia.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

1306

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

    • Louisiana
      • New Orleans, Louisiana, Forenede Stater, 70112
        • Tulane University

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

40 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria for Primary Care Clinics

  • Predominantly managing underserved populations with health disparities (ethnic minorities, low-income groups, and residents of rural areas and inner cities).
  • Having electronic medical record systems.
  • Serving >200 hypertension patients (ICD-10-CM I10-I15) during the previous year.
  • Not participating in other hypertension control programs
  • Not sharing providers or nurses/pharmacists with other participating clinics.

Inclusion Criteria for Study Participants

  • Men or women aged ≥40 years (2/3 of participants ≥60 years) who receive primary care from participating clinics.
  • Systolic BP ≥ 140 mmHg at two screening visits for those not taking antihypertensive medication or systolic BP ≥ 130 mmHg at two screening visits for those taking antihypertensive medications
  • Pregnant women, women planning to become pregnant in the near future, women of childbearing potential and not practicing birth control, and persons who cannot give informed consent will be excluded.
  • No diagnosis of dementia at baseline
  • Baseline MoCA score ≥ 10.
  • No diagnosis of end-stage renal disease, defined as dialysis or transplantation
  • Speak English as first language
  • No plans to change to a primary healthcare provider outside of their clinic in the near future
  • No individuals unlikely to complete the study, such as those who plan to move out of the study area in the near future and temporary migrant and homeless people
  • No immediate family members are staff at their clinic

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Intervention

The core component of the intervention is protocol-based treatment using the SPRINT intensive BP management algorithm. Implementation strategies include dissemination of SPRINT study findings, team-based collaborative care and shared-decision making, blood pressure audit and feedback, home blood pressure monitoring, and health coaching.

The core component of the intervention is protocol-based treatment using the SPRINT intensive BP management algorithm. Implementation strategies include dissemination of SPRINT study findings, team-based collaborative care and shared-decision making, blood pressure audit and feedback, home blood pressure monitoring, and health coaching.

Ingen indgriben: Enhanced Usual Care

Enhanced usual care will include an education session on the ACC/AHA hypertension guideline to providers and proper BP measurement to providers and staff at enhanced usual care clinics.Otherwise, no active intervention will take place, and all usual care clinics will follow their routine clinic practice.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Net difference in mean change in cognitive decline
Tidsramme: Baseline to an average of 36 months

The net difference in mean change of global cognitive composite z-score over an average 36 months between intervention and enhanced usual care groups

Baseline to an average of 36 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Net difference in mean change in MoCA score
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in Montreal Cognitive Assessment (MoCA) over an average 36 months.

Baseline to an average of 36 months
Net difference in mean change in executive function
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in executive function composite z-score (calculated from average of z-scores from individual tests: DSC, Trails A & B, DST, Category Fluency) over an average 36 months.

Baseline to an average of 36 months
Net difference in mean change in memory function
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in memory composite z-score (calculated from average of z-scores from individual tests: MoCA immediate & delayed word recall, HVLT-R immediate recall) over an average 36 months.

Baseline to an average of 36 months
Net difference in mean change in systolic blood pressure
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in systolic blood pressure over an average 36 months.

Baseline to an average of 36 months
Net difference in mean change in diastolic blood pressure
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in diastolic blood pressure over an average 36 months.

Baseline to an average of 36 months

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Side effects
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in frequency of side effects (collected via detailed questionnaire) over an average 36 months.

Baseline to an average of 36 months
Health-related Quality of Life (HRQoL)
Tidsramme: Baseline to an average of 36 months

Difference between the intervention and usual care group in mean change in health-related quality of life (measured using the 12-Item Short Form Survey) over an average 36 months.

Baseline to an average of 36 months
Difference in proportion of patients with adjudicated mild cognitive impairment (MCI) or probable dementia (exploratory outcome)
Tidsramme: Baseline to an average of 36 months

Difference in adjudicated MCI and probable dementia at the termination visit between the intervention and usual care group. Based on pre-defined MoCA cutpoints, suspected cases of dementia/MCI will be randomly assigned to two adjudicators, blinded to treatment assignment, with expertise in dementia for review. Data used in the adjudication will include all available cognitive test data, functional assessment, and additional data including demographic information and medical records.

Baseline to an average of 36 months

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Katherine T Mills, PhD, Tulane University
  • Ledende efterforsker: Jeff D Williamson, MD, Wake Forest University
  • Ledende efterforsker: Jiang He, MD, PhD, Tulane University

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 (Faktiske)

22. oktober 2019

Primær færdiggørelse (Anslået)

1. oktober 2026

Studieafslutning (Anslået)

1. oktober 2026

Datoer for studieregistrering

Først indsendt

8. marts 2021

Først indsendt, der opfyldte QC-kriterier

11. marts 2021

Først opslået (Faktiske)

15. marts 2021

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

1. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

28. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • R61AG068481 (U.S. NIH-bevilling/kontrakt)
  • R33AG068481 (U.S. NIH-bevilling/kontrakt)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Our study data sharing plan will comply with all NIH policies for data sharing. Data sharing will be executed through the centralized NIH data repository and will be implemented in a timely manner. Data will be prepared by the Study Data Coordinating Center and sent to the study's NIA Program Official for review prior to release. These data will be free of identifiers that allow identification of individual research participants either directly or through "deductive disclosure." In addition, the investigators will offer, through our public access website, opportunities for outside investigators to collaborate with us using complete study data.

At the completion of the project, the investigators will make all intervention materials and procedure manuals available to the public according to the approved plan for making data and materials available to the scientific community, lay public, and the NIH.

IPD-delingstidsramme

Study data, including data from baseline and follow-up visits, will be prepared for transmission to the NIH data repository no later than 3 years after the end of the final patient follow-up or 2 years after the main paper of the trial has been published, whichever comes first.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .