Withdrawal of Heart Failure Treatment Patients With Non-ischemic Cardiomyopathy Who Have Been Super-responders to Cardiac Resynchronization Therapy. (DRUGLESS-CRT)
Withdrawal of Heart Failure Treatment in Patients With Non-ischemic Cardiomyopathy, Without Late Gadolinium Enhancement and With a Negative Genetic Test, Who Have Been Super-responders to Cardiac Resynchronization Therapy.
Multicenter, prospective, non-inferiority, randomized, single-blind (primary endpoint evaluators blinded, patients not blinded) clinical trial.
We aim to evaluate if the withdrawal of heart failure treatment is safe in patients with non-ischemic cardiomyopathy, negative genetic test, no evidence of late gadolinium enhancement on cardiac MRI, who have been super-responders to cardiac resynchronization therapy and remain free of heart failure events for at least 6 months after device implantation.
Studieoversigt
Status
Intervention / Behandling
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Fase 4
Kontakter og lokationer
Studiekontakt
- Navn: Andrea Di Marco, MD, PhD
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
Studiesteder
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-
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Barcelona, Spanien
- Rekruttering
- Hospital Vall d'Hebron
-
Kontakt:
- Jaume Francisco Pascual
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
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Girona, Spanien
- Rekruttering
- Hospital Trueta
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Kontakt:
- Carles Moliner
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
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Granada, Spanien
- Rekruttering
- Hospital Virgen de las Nieves
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Kontakt:
- Laura Jordan
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
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Barcelona
-
L'Hospitalet de Llobregat, Barcelona, Spanien, 08907
- Rekruttering
- Hospital Universitari de Bellvitge
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Kontakt:
- Andrea Di Marco
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Diagnosis of non-ischemic cardiomyopathy
- LBBB already present at the time of first diagnosis of LV dysfunction
- Negative genetic test
- Cardiac MRI with no evidence of late gadolinium enhancement (LGE at RV insertion points is acceptable)
- Carrier of a resynchronization device (ICD or pacemaker, with LV epicardial pacing form a cardiac vein or left bundle area pacing), pacing percentage >95% and paced QRS <140 ms
- Device indication: LVEF ≤35% and LBBB with QRS >150 ms
- LVEF ≥50% and normal indexed LV volumes on echocardiogram performed at least 6 months after CRT implantation
- No heart failure decompensations (no hospitalizations or urgent/day hospital visits) since CRT implantation
- No need for loop diuretic treatment
- NYHA class I or II
- NT-proBNP <450 ng/L (or <1000 ng/L in atrial fibrillation/flutter)
- On neurohormonal therapy with at least two drugs
Exclusion Criteria:
- Family history of non-ischemic cardiomyopathy with LVEF <50% in at least one first-degree relative
- Severe valvular heart disease
- History of sustained ventricular arrhythmia or treated by ICD
- Need to maintain beta-blocker therapy for other arrhythmias
- Hypertension not controlled with other medications
- CRT devices implanted as an upgrade from prior pacemaker or ICD, where prior pacing percentage was >20%
- Clinical indication other than heart failure to maintain any of the neurohormonal treatment drugs (class I recommendation in ESC or ACC/AHA guidelines)
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 |
|---|---|
|
Ingen indgriben: Control Group
Continue heart failure medical tretment without changes |
|
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Aktiv komparator: Drugs withdrawal group
Heart failure medications are progressively withdrawn, in a máximum period of 9 weeks, always with the same protocol in every patient. |
Heart failure drugs will be withdrawn progressively over a maximum of 9 weeks, discontinuing drugs one by one following a predefined sequence |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Recurrence of left ventricular dysfunction or heart failure symptoms at 6 months
Tidsramme: 6 months
|
Any of the following events:
|
6 months
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Emergency room or day hospital visits for heart failure
Tidsramme: 6 and 12 months
|
6 and 12 months
|
|
|
Hospitalizations due to heart failure
Tidsramme: 6 and 12 months
|
6 and 12 months
|
|
|
Ventricular arrhythmias
Tidsramme: 6 and 12 months
|
Sustained ventricular tachycardia, sudden cardiac death, appropriate ICD therapy |
6 and 12 months
|
|
Supraventricular arrhythmias
Tidsramme: 6 and 12 months
|
Sustained supraventricular arrhythmia, including sustained atrial fibrillation, sustained atrial flutter and sustained atrial tachycardia |
6 and 12 months
|
|
NYHA class
Tidsramme: 6 and 12 months
|
New York Heart Association functional class, limits I-IV, higher scores means worse outcome |
6 and 12 months
|
|
NtproBNP
Tidsramme: 6 and 12 months
|
levels of NTproBNP, as measured in blood sample |
6 and 12 months
|
|
Quality of life, assessed with KCCQ
Tidsramme: 6 and 12 months
|
KCCQ: Kansas City Cardiomyopathy Questionnaire, minimum and maximum values 0-100, higher scores indicate better outcome |
6 and 12 months
|
|
Quality of life as evaluated with the EQ-5D-5L, EQ VAS
Tidsramme: 6 months and 12 months
|
EuroQol five-dimension, five-level questionnaire - visual analogue scale, minimum and maximum value 0-100, higher score indicates better outcome |
6 months and 12 months
|
|
Quality of life evaluated with the EQ-5D-5L-index value
Tidsramme: 6 months and 12 months
|
EuroQol five-dimension, five-level questionnaire - index value, minimum and maximum value 0-1, higher score indicates better outcome |
6 months and 12 months
|
Samarbejdspartnere og efterforskere
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
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
Nøgleord
Andre undersøgelses-id-numre
- DRUGLESS-CRT
- 2025 (U.S. NIH-bevilling/kontrakt)
- 2025-521780-12-00 (Ctis)
Plan for individuelle deltagerdata (IPD)
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