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
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Fase 4
Kontakter og lokationer
Studiekontakt
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
-
Kontakt:
- Andrea Di Marco
- Telefonnummer: +34932607686
- E-mail: adimarco@bellvitgehospital.cat
-
-
Deltagelseskriterier
Berettigelseskriterier
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
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Ingen indgriben: Control Group
Continue heart failure medical tretment without changes |
|
|
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
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
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
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
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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