E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Dilated Cardiomyopathy |
miocardiopatía dilatada |
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E.1.1.1 | Medical condition in easily understood language |
Dilated Cardiomyopathy |
miocardiopatía dilatada |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess if early administration of candesartan (compared to placebo) prevents either a significant Left ventricular ejection fraction (LVEF) decline of ≥10%, or a ventricular dilatation (left ventricular end-diastolic volume, LVEDV) increase of ≥10% in genetic carriers of a DCM-causing variant without disease expression. |
Estudiar si la administración precoz de candesartán (comparado con placebo) previene el deterioro significativo (≥10%) de la fracción de eyección del ventrículo izquierdo (FEVI) o la dilatación ventricular (volumen telediastólico ventricular izquierdo, VTDVI) en sujetos portadores genéticos de mutaciones causales de MCD sin expresión de la enfermedad. |
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E.2.2 | Secondary objectives of the trial |
- To assess if early administration of candesartan (compared to placebo) reduces or prevents any sign of progression to DCM (LVEF decline, LVEDV increase, or LVEF<50%, assessed by MRI) in genetic carriers of a DCM-causing variant without disease expression. - To assess the safety and tolerability of candesartan (compared to placebo) in the study population. |
- Estudiar si la administración precoz de candesartán (comparado con placebo) reduce o previene signos de progresión a MCD (descenso de FEVI, aumento de VTDVI o aparición de FEVI<50%; evaluadas por resonancia magnética cardíaca (RMC)) en sujetos portadores genéticos de mutaciones causales de MCD sin expresión de la enfermedad. - Estudiar la seguridad y tolerabilidad del candesartán (comparado con placebo) en la población del estudio. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Age: 18-64 (both included), both sexes - Carrier of a pathogenic or likely pathogenic DCM genetic variant according to the modified American College of Medical Genetics (ACMG) criteria. - Baseline LVEF ≥ 50% measured by MRI evaluated by the eligibility study committee. - Baseline potassium ≤ 5.3 mEq/L, creatinine ≤ 1.3 mg/dL and an estimated Glomerular Filtration Rate (eGFR)≥ 60 ml/min/1.73 m2. - Able to understand and accept the study constraints and to provide informed consent (either by themselves or by a legal representative). |
- Edad: 18-64 (ambos incluidos), de ambos sexos. - Portadores de variantes patogénicas o probablemente patogénicas según criterios del American College of Medical Genetics (ACMG) en genes relacionados con MCD. - FEVI basal ≥ 50%, determinada por RMC y evaluada de forma centralizada. - Valores basales de potasio ≤ 5.3 mEq/L, creatinina ≤ 1.3 mg/dL y una Tasa de Filtrado Glomerular estimada (TFGe) ≥ 60 ml/min/1.73 m2. - Capacidad de comprender y aceptar las limitaciones del estudio y proporcionar un consentimiento informado (propio o a través de representante legal). |
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E.4 | Principal exclusion criteria |
- Hypotension (systolic arterial pressure <100 mmHg) - Preexisting hypertension requiring pharmacological treatment. - Uncontrolled arterial hypertension (i.e., repeatedly systolic arterial pressure ≥ 140 mmHg) - Carriers of TTN-truncating variants (TTNtv) who are < 35 years old. - Known, clinically significant coronary artery disease (≥70% stenosis in any epicardial artery or ≥50% of left main coronary artery), valvular disease (≥ moderate in severity) or ventricular arrhythmias. - Ongoing treatment with ACE inhibitors, ARB, ARNI, MRA. - Prior intolerance to ACE inhibitors or ARB. - Presence of any contraindications to receive candesartan treatment, per investigator’s opinion. - Known bilateral renal artery stenosis. - Uncontrolled concomitant severe disease (e.g., with expected survival inferior to the duration of the study follow-up). - Participation in another clinical trial using an investigational medicinal product or device, in the 30 days prior to the inclusion in the study. - Current pregnancy, breastfeeding, or women of childbearing age who are not willing to practice an adequate birth control during the duration of the study (a negative pregnancy test result must be obtained at the time of enrolment). - Drug or alcohol abuse (current). - Inability to adequately comply with study procedures and treatments. - Carriers of MRI incompatible internal devices (pacemakers, aneurysm clips, etc.) or with known intolerance to MRI studies. - Any circumstances that in the investigator’s opinion compromise the participant’s ability to participate in the clinical trial. |
- Hipotensión, definida como presión arterial sistólica <100 mmHg. - Hipertensión arterial en tratamiento farmacológico preexistente. - Hipertensión arterial no controlada, definida como presión arterial sistólica ≥140 mmHg de forma repetida. - Portadores de variantes de truncamiento en titina (TTN) menores de 35 años. - Enfermedad arterial coronaria conocida y clínicamente significativa (estenosis de ≥70% en cualquier arteria epicárdica o de ≥50% en la arteria coronaria izquierda principal), enfermedad valvular (de gravedad moderada o superior) o arritmias ventriculares. - Tratamiento con inhibidores de la enzima convertidora de angiotensina (IECA), antagonistas de receptores de angiotensina II (ARA-II), antagonistas duales de receptor de angiotensina y neprilisina y antagonistas del receptor mineralcorticoide. - Intolerancia previa a IECA o ARA-II. - Cualquier contraindicación para el tratamiento con candesartán, según criterio del investigador. - Estenosis bilateral de la arteria renal conocida. - Enfermedad concomitante grave, no controlada (por ej., con supervivencia estimada menor a la duración del seguimiento del estudio). - Participación en otro ensayo con un medicamento o dispositivo en investigación dentro de los 30 días previos a la inclusión en el estudio. - Embarazo o lactancia actuales o planeados durante la duración del ensayo; así como mujeres en edad fértil no dispuestas a adoptar medidas anticonceptivas adecuadas durante todo el estudio (se requerirá test de embarazo negativo durante el reclutamiento). - Abuso de drogas o alcohol (actual). - Sospecha de cumplimiento deficiente del tratamiento o procedimientos del estudio. - Contraindicación de realización de RMC por dispositivo interno incompatible (marcapasos, clips de aneurismas…) o intolerancia conocida. - Cualquier circunstancia que a criterio del investigador pudiera comprometer la permanencia o cumplimiento del participante en el estudio. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Proportion of participants that progress to either a LVEF or LVEDV deterioration of ≥10% with respect to the baseline value at the end of follow-up as measured by MRI. |
Proporción de participantes que progresan a un deterioro de ≥10% de FEVI o VTDVI, con respecto al valor inicial medido por RMC al final del seguimiento. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
At the end of follow-up (36 months) |
Al final del seguimiento (36 meses) |
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E.5.2 | Secondary end point(s) |
- Proportion of participants that progress to a LVEF deterioration of ≥10% compared to baseline value at the end of follow-up as measured by MRI. - Proportion of participants that progress to a LVEDV deterioration of ≥10% compared to baseline value at the end of follow-up as measured by MRI. - Changes in LVEF measured by MRI (vs baseline) - Changes in LVEDV measured by MRI (vs baseline) - Proportion of individuals who develop DCM (LVEF<50%). - Proportion of participants in each treatment group developing Serious Adverse Events (SAEs), Grade 3-4 adverse events (AEs), Adverse Reactions, or AEs of Special Interest (AESIs). - Proportion of treatment discontinuations in the candesartan and placebo groups. |
- Proporción de participantes que progresan a un deterioro de FEVI ≥10% con respecto al valor inicial medido por RMC al final del seguimiento. - Proporción de participantes que progresan aun deterioro de VTDVI ≥10% con respecto al valor inicial medido por RMC al final del seguimiento. - Variación en FEVI al final del seguimiento respecto a la FEVI inicial, medida por RMC. - Variación en VTDVI al final del seguimiento respecto al VTDVI inicial, medido por RMC - Proporción de participantes que desarrollan MCD (FEVI<50%). - Proporción de participantes en cada grupo de tratamiento que desarrollan Eventos Adversos Graves (EAG), Eventos Adversos de grado 3-4 (AEs), reacciones adversas o Eventos Adversos de Especial Interés (EAEI). - Proporción de participantes que abandonan el tratamiento del estudio, en ambas ramas. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At the end of follow-up (36 months) |
Al final del seguimiento (36 meses) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 20 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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LVLS |
Ultima visita del último paciente |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |