- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07492524
Telemedicinsk integreret behandling af atrieflimren og hjertesvigt hos ældre patienter i landsbyklinikker
Telemedicinsk integreret behandling af atrieflimren og hjertesvigt hos ældre patienter i landsbyklinikker: MIRACLE-AF II cluster-randomiseret forsøg
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Atrieflimren (AF) og hjertesvigt (HF) forekommer hyppigt samtidigt og forstærker hinanden gensidigt, hvilket danner en "ond cirkel", der er særligt ødelæggende for ældre voksne. Ældre patienter med AF har en høj risiko for HF-progression, og AF-HF-sygdomssammenhæng er en central faktor for den langsigtede prognose. I landdistrikter i Kina står effektiv forebyggelse og langsigtet behandling over for praktiske flaskehalse, herunder utilstrækkelig tidlig HF-screening og utilstrækkelig intensitet af målrettet forebyggelse. Tidligere undersøgelser tyder på, at "procesorienteret" integration alene, såsom den standardiserede ABC-vej, muligvis er utilstrækkelig for landdistrikts-AF-patienter, hvor HF-risikoen er dominerende.
For at imødegå disse huller har MIRACLE-AF II-studiet til formål at etablere en model ledet af landsbylæger, der integrerer retningslinjestyret medicinsk behandling (GDMT) med multidimensionelle livsstilsinterventioner, understøttet af telemedicin og intelligent beslutningsstøtte. Ved at integrere tidlig HF-screening, medicintilgang og en skalerbar livsstilsintervention (herunder peer-gruppe-hjerterehabilitering, adfærdsundervisning og overvågning med smarte bærbare enheder) i en tele-understøttet arbejdsgang søger dette projekt at effektivt forbedre de kliniske resultater for ældre patienter.
Dette er et klynge-randomiseret kontrolleret forsøg udført i landdistrikter i Jiangsu-provinsen, Kina. Landsbyklinikker randomiseres i et 1:1-forhold til enten en digital intelligent integreret ledelsesgruppe (intervention) eller en konventionel ledelsesgruppe (kontrol). Studiet inkluderer fastboende i alderen 65 til 80 år med bekræftet AF og en dokumenteret historie eller screeningsbaseret diagnose af HF. Forsøget er opdelt i to faser: en 12-måneders opfølgning for at sammenligne HF-prognose-scoren (MAGGIC-score) mellem de to grupper, og en 36-måneders opfølgning for at sammenligne sammensatte slutpunktsbegivenheder, herunder kardiovaskulær død, iskæmisk eller hæmoragisk apopleksi, indlæggelse på grund af forværret HF eller akut koronarsyndrom (ACS), og akutte besøg for AF.
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
- Navn: Ming Chu
- Telefonnummer: 13814010410
- E-mail: chuming@njmu.edu.cn
Studiesteder
-
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Dongtai
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Yancheng, Dongtai, Kina, 224200
- Rekruttering
- Village Clinics in Dongtai City, Jiangsu Province
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Kontakt:
- Cheng Wu
- Telefonnummer: 18012515515
- E-mail: wucheng1413@163.com
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Jiangdu
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Yangzhou, Jiangdu, Kina, 225267
- Rekruttering
- Village Clinics in Jiangdu District, Jiangsu Province
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Kontakt:
- Ming Chu
- Telefonnummer: 13814010410
- E-mail: chuming@njmu.edu.cn
-
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Suining
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Xuzhou, Suining, Kina, 221200
- Rekruttering
- Village Clinics in Suining County, Jiangsu Province
-
Kontakt:
- Wensu Chen
- Telefonnummer: 15050848274
- E-mail: Chen.wensu@163.com
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inklusionskriterier:
- Faste borgere med lokal husstandsregistrering på primærniveau i Jiangsu-provinsen, i alderen 65-80 år.
- Elektrokardiogram (EKG) bekræftelse af AF eller besiddelse af en diagnostisk attest for AF udstedt af en specialist.
- En dokumenteret historie med HF eller en diagnose af HF baseret på ekokardiografi og/eller NT-proBNP-screening, defineret ved tilstedeværelse af typiske HF-symptomer og/eller tegn, sammen med en af følgende: reduceret venstre ventrikel ejektionsfraktion (HFrEF; LVEF < 40%), let reduceret venstre ventrikel ejektionsfraktion (HFmrEF; LVEF 40-49%) eller bevaret venstre ventrikel ejektionsfraktion med forhøjet NT-proBNP og strukturelle hjerteforandringer (HFpEF; LVEF ≥ 50%, opfyldende mindst ét af følgende kriterier: LAV 40 ml/m², E/e' ≥ 15, eller TRV > 2,8 m/s).
- Forvaltning af en landsbyklinik nær deltagerens bopæl.
- Evne til at forstå undersøgelsesprocedurerne og give skriftlig informeret samtykke.
Eksklusionskriterier:
- Forventet levealder på mindre end 3 måneder.
- Svær nyreinsufficiens (Ccr < 30ml/min) eller igangværende dialysebehandling.
- Hjertesvigt sekundært til korrigerbare årsager, herunder hyperthyroid hjerte sygdom, anemisk hjerte sygdom eller ukorrigeret medfødt hjertefejl.
- Indikationer for pacemaker implantation uden at have gennemgået implantation.
- Kronisk obstruktiv lungesygdom (KOL) kompliceret af type II respirationssvigt.
- Specielle populationer, herunder patienter med psykiske sygdomme.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Intervention Group
Participants in this arm will receive village-doctor led integrated care for atrial fibrillation and heart failure.
Village doctors will receive standardized training based on the AF ABC pathway and heart failure GDMT principles.
Patients will receive structured self-management education focused on medication adherence, symptom monitoring, lifestyle modification, and recognition of warning signs.
|
|
|
Aktiv komparator: Control Group
Participants in this arm will receive usual chronic disease management according to the National Basic Public Health Service requirements.
|
Usual care includes routine follow-up, general health education, medication registration, and standard referral procedures provided by local primary care providers.
Participants will not receive the structured village-doctor led integrated care program.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in MAGGIC Heart Failure Risk Score
Tidsramme: Baseline to 12 months
|
A heart failure prognostic model integrating 13 key predictors, including age, LVEF, systolic blood pressure, BMI, serum creatinine, NYHA functional class, and medication status.
|
Baseline to 12 months
|
|
Composite Cardiovascular Endpoint
Tidsramme: 36 months after baseline
|
Composite cardiovascular endpoint, including cardiovascular death, ischemic or hemorrhagic stroke, hospitalization for worsening heart failure or acute coronary syndrome, and emergency visits due to atrial fibrillation.
|
36 months after baseline
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Cardiovascular Death
Tidsramme: 12 months after baseline
|
Cardiovascular death was defined as death attributable to myocardial infarction, heart failure, arrhythmia, cardiac perforation or tamponade, or other deaths of cardiac origin.
Death caused by ischemic stroke, hemorrhagic stroke, peripheral embolism, and pulmonary embolism was also classified as cardiovascular death
|
12 months after baseline
|
|
Cardiovascular Hospitalization
Tidsramme: 12 months after baseline
|
Hospitalization due to cardiovascular or neurological diseases at township-level or higher hospitals, including heart failure, cardiac arrhythmia, acute coronary syndrome, hypertensive emergency or urgency, ischemic or hemorrhagic stroke, and transient ischemic attack.
|
12 months after baseline
|
|
Emergency Visit for Cardiovascular Events
Tidsramme: 12 months after baseline
|
Incidence of emergency visits for cardiovascular events, including exacerbation of heart failure or acute coronary syndrome.
|
12 months after baseline
|
|
ischemic or hemorrhagic Stroke
Tidsramme: 12 months after baseline
|
All strokes: ischemic or hemorrhagic Stroke
|
12 months after baseline
|
|
The proportion of patients who met all the three criteria for the ABC pathway of integrated AF care
Tidsramme: 12 month after baseline
|
The 'A' criterion referred to stroke prevention or anticoagulation.
'A criterion compliant' implies that either appropriate non-vitamin K antagonist oral anticoagulant (NOACs) use, or warfarin was used with a time in the therapeutic range (TTR) >65%.
Patients who were not properly treated with OACs are considered as 'A non-compliant'.
The 'B' criterion referred to better symptom control with patient-centered decisions on rate or rhythm control.
Patients with an EHRA score of I or II are considered to have good control of AF symptoms ('B compliant').
On the contrary, those with an EHRA score of III or IV were defined as 'B non-compliant', which means their symptoms were insufficiently controlled.
The 'C' criterion stands for optimal management of cardiovascular risk factors and other comorbidities.
'C criterion compliant' implies that all the considered risk factors and comorbidities were well controlled or optimally treated.
Otherwise, patients were considered as 'C non-compliant'
|
12 month after baseline
|
|
GDMT medication utilization rate
Tidsramme: 12months after baseline
|
The proportion of patients who are eligible for guideline-directed medical therapy (GDMT) and actually receive GDMT within 12 Months.
Single-class prescription rate: Prescription rate for a given GDMT drug class = (number of patients prescribed that drug class) / (number of patients eligible for that drug class) × 100%.
At least one GDMT class prescription rate: At least one GDMT prescription rate = (number of patients prescribed at least one GDMT drug class) / (total number of patients eligible for GDMT) × 100%.
Quadruple GDMT prescription rate: Quadruple therapy prescription rate = (number of patients simultaneously prescribed ARNI/ACEI/ARB + β-blocker + MRA + SGLT2 inhibitor) / (number of patients eligible for all four drug classes) × 100%.
|
12months after baseline
|
|
Cardiovascular Death
Tidsramme: 36 months after baseline
|
Cardiovascular death was defined as death attributable to myocardial infarction, heart failure, arrhythmia, cardiac perforation or tamponade, or other deaths of cardiac origin.
Death caused by ischemic stroke, hemorrhagic stroke, peripheral embolism, and pulmonary embolism was also classified as cardiovascular deathTime
|
36 months after baseline
|
|
Ischemic or hemorrhagic Stroke
Tidsramme: 36 months after baseline
|
All strokes: ischemic or hemorrhagic Stroke
|
36 months after baseline
|
|
Worsening of heart failure or acute coronary syndrome
Tidsramme: 36 months after baseline
|
A worsening of heart failure or acute coronary syndrome was defined as the need to be hospitalized or have an emergency visit in conjunction with these conditions
|
36 months after baseline
|
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Emergency visit due to AF
Tidsramme: 36 months after baseline
|
Emergency visit due to AF
|
36 months after baseline
|
|
All-cause mortality
Tidsramme: 36 months after baseline
|
all-cause death
|
36 months after baseline
|
|
The proportion of patients who met all the three criteria for the ABC pathway
Tidsramme: 36 month after baseline
|
The 'A' criterion referred to stroke prevention or anticoagulation.
'A criterion compliant' implies that either appropriate non-vitamin K antagonist oral anticoagulant (NOACs) use, or warfarin was used with a time in the therapeutic range (TTR) >65%.
Patients who were not properly treated with OACs are considered as 'A non-compliant'.
The 'B' criterion referred to better symptom control with patient-centered decisions on rate or rhythm control.
Patients with an EHRA score of I or II are considered to have good control of AF symptoms ('B compliant').
On the contrary, those with an EHRA score of III or IV were defined as 'B non-compliant', which means their symptoms were insufficiently controlled.
The 'C' criterion stands for optimal management of cardiovascular risk factors and other comorbidities.
'C criterion compliant' implies that all the considered risk factors and comorbidities were well controlled or optimally treated.
Otherwise, patients were considered as 'C non-compliant'
|
36 month after baseline
|
|
Change in MAGGIC Heart Failure Risk Score
Tidsramme: Baseline to 36 months
|
Description: A heart failure prognostic model integrating 13 key predictors, including age, LVEF, systolic blood pressure, BMI, serum creatinine, NYHA functional class, and medication status.
|
Baseline to 36 months
|
|
GDMT Score
Tidsramme: Baseline to 12 months
|
β-blockers are scored as 0, 1, or 2 points for no use, use at <50% of the target dose, or use at ≥50% of the target dose, respectively.
For renin-angiotensin system inhibitors, no use is scored as 0 points; ACEI/ARB therapy at <50% or ≥50% of the target dose is scored as 1 or 2 points, respectively; and ARNI therapy at any dose is scored as 3 points.
Mineralocorticoid receptor antagonists and SGLT2 inhibitors are each scored as 0 points when not used and 2 points when used at any dose.
Ivabradine and vericiguat are each scored as 0 points when not used and 1 point when used at any dose.
The scores for all medication classes are summed to obtain the total GDMT score, with a higher score indicating a greater degree of GDMT implementation.
Target doses are determined according to the relevant heart failure guidelines.
|
Baseline to 12 months
|
|
GDMT Score
Tidsramme: Baseline to 36 months
|
β-blockers are scored as 0, 1, or 2 points for no use, use at <50% of the target dose, or use at ≥50% of the target dose, respectively.
For renin-angiotensin system inhibitors, no use is scored as 0 points; ACEI/ARB therapy at <50% or ≥50% of the target dose is scored as 1 or 2 points, respectively; and ARNI therapy at any dose is scored as 3 points.
Mineralocorticoid receptor antagonists and SGLT2 inhibitors are each scored as 0 points when not used and 2 points when used at any dose.
Ivabradine and vericiguat are each scored as 0 points when not used and 1 point when used at any dose.
The scores for all medication classes are summed to obtain the total GDMT score, with a higher score indicating a greater degree of GDMT implementation.
Target doses are determined according to the relevant heart failure guidelines.
|
Baseline to 36 months
|
|
GDMT medication utilization rate
Tidsramme: 36 months after baseline
|
The proportion of patients who are eligible for guideline-directed medical therapy (GDMT) and actually receive GDMT within 36 months.
Single-class prescription rate: Prescription rate for a given GDMT drug class = (number of patients prescribed that drug class) / (number of patients eligible for that drug class) × 100%.
At least one GDMT class prescription rate: At least one GDMT prescription rate = (number of patients prescribed at least one GDMT drug class) / (total number of patients eligible for GDMT) × 100%.
Quadruple GDMT prescription rate: Quadruple therapy prescription rate = (number of patients simultaneously prescribed ARNI/ACEI/ARB + β-blocker + MRA + SGLT2 inhibitor) / (number of patients eligible for all four drug classes) × 100%.
|
36 months after baseline
|
Samarbejdspartnere og efterforskere
Samarbejdspartnere
Publikationer og nyttige links
Generelle publikationer
- Chu M, Zhang S, Gong J, Yang S, Yang G, Sun X, Wu D, Xia Y, Jiao J, Peng X, Peng Z, Hong L, Wang Z, Li M, Lip GYH, Chen M; MIRACLE-AF Investigators. Telemedicine-based integrated management of atrial fibrillation in village clinics: a cluster randomized trial. Nat Med. 2025 Apr;31(4):1276-1285. doi: 10.1038/s41591-025-03511-2. Epub 2025 Feb 21.
- Li M, Chu M, Shen Y, Zhang S, Yin X, Yang S, Lip GYH, Chen M; MIRACLE-AF Trial Investigators. A Novel Model of Integrated Care of Older Patients With Atrial Fibrillation in Rural China. JACC Asia. 2024 Jul 30;4(10):764-773. doi: 10.1016/j.jacasi.2024.07.006. eCollection 2024 Oct.
- Li M, Chen Y, Chu M, Zhang S, Yang S, Lip GYH, Chen M. Village Doctor-Led Telemedicine for Rural Patients Aged 75 Years and Older With AF: A Prespecified Secondary Analysis of the MIRACLE-AF Trial. JAMA Netw Open. 2026 Mar 2;9(3):e261385. doi: 10.1001/jamanetworkopen.2026.1385.
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Primær færdiggørelse (Anslået)
Studieafslutning (Anslået)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- LSKY 2025-192-01,2026-SR-177
Plan for individuelle deltagerdata (IPD)
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IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
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