E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
complement 3 glomerulopathy |
glomerulopatía C3 |
|
E.1.1.1 | Medical condition in easily understood language |
Kidney disorder |
trastorno renal |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10077827 |
E.1.2 | Term | C3 glomerulopathy |
E.1.2 | System Organ Class | 10038359 - Renal and urinary disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To demonstrate the superiority of iptacopan compared to placebo in reducing proteinuria. |
Demostrar la superioridad de iptacopán en comparación con placebo en la reducción de la proteinuria |
|
E.2.2 | Secondary objectives of the trial |
- To demonstrate the superiority of iptacopan vs. placebo in improving eGFR. - To demonstrate the superiority of iptacopan vs. placebo in the proportion of participants who achieved a composite renal endpoint. - To demonstrate the effect of iptacopan vs placebo in reducing glomerular inflammation in the kidney. - To assess the effect of iptacopan compared to placebo in improvement of patient reported fatigue. - To evaluate the safety and tolerability of iptacopan compared to placebo |
- Demostrar la superioridad de iptacopán frente a placebo en la mejora la TFGe - Demostrar la superioridad de iptacopán frente a placebo en el porcentaje de participantes que hayan alcanzado la variable renal compuesta - Demostrar el efecto de iptacopán frente a placebo en la reducción de la inflamación glomerular en el riñón - Evaluar el efecto de iptacopán en comparación con placebo en la mejora de la fatiga comunicada por el paciente - Evaluar la seguridad y la tolerabilidad de iptacopán en comparación con placebo |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male and female participants age >/= 18 and </= 60 years at screening. -Diagnosis of C3G as confirmed by renal biopsy within 12 months prior to enrollment - Prior to randomization, all participants must have been on a maximally recommended or tolerated dose of an angiotensin converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB) for at least 90 days. The doses of other antiproteinuric medications including mycophenolic acids, corticosteroids, and mineralocorticoid receptor antagonists should be stable for at least 90 days prior to randomization. - Reduced serum C3 (defined as less than 0.85 x lower limit of the central laboratory normal range) at Screening. - UPCR >/= 1.0 g/g sampled from the first morning void urine sample at Day -75 and Day -15. - Estimated GFR (using the CKD-EPI formula) or measured GFR >/= 30 ml/min/1.73m2 at Screening and Day -15. - Vaccination against Neisseria meningitidis infection prior to the start of study treatment. Vaccination against Streptococcus pneumoniae and Haemophilus influenzae infections should be given, if available and according to local regulations. |
- Participantes de ambos sexos entre >/=18 años y </=60 años en la selección - Diagnóstico de GC3 confirmada por biopsia renal durante los 12 meses previos al reclutamiento - Antes de la aleatorización, todos los participantes deben haber tomado una dosis máxima recomendada o tolerada de un inhibidor de la enzima convertidora de la angiotensina (IECA) o de un antagonista de los receptores de la angiotensina (ARA) durante al menos 90 días. Las dosis de otros fármacos antiproteinúricos, incluyendo ácidos micofenólicos, corticosteroides y antagonistas de los receptores mineralocorticoideos, deberían ser estables durante al menos 90 días antes de la aleatorización. - C3 en suero reducido (definido como menos de 0,85 x límite inferior del intervalo normal del laboratorio central) en la selección. - CPC en orina ≥1,0 g/g tomado de una muestra de la primera micción de la mañana del día -75 y el día -15. - TFG estimada (utilizando la fórmula CKD-EPI) o TFG medida >/=30 ml/min/1,73 m2 en la selección y el día -15. - Vacuna contra la infección por Neisseria meningitidis antes de comenzar el tratamiento del estudio. Se deberá administrar la vacuna contra las infecciones por Streptococcus pneumoniae y Haemophilus influenzae, si están disponibles y según la normativa local |
|
E.4 | Principal exclusion criteria |
- Participants who have received any cell or organ transplantation, including kidney transplantation. - Rapidly progressive crescentic glomerulonephritis defined as a 50% decline in the eGFR within 3 months with renal biopsy findings of glomerular crescent formation seen in at least 50% of glomeruli. - Renal biopsy showing interstitial fibrosis/tubular atrophy (IF/TA) of more than 50%. - Monoclonal gammopathy of undetermined significance (MGUS) confirmed by the measurement of serum free light chains or other investigation as per local standard of care. - Participants with an active systemic bacterial, viral or fungal infection within 14 days prior to study treatment administration. - The presence of fever >/= 38°C (100.4°F) within 7 days prior to study treatment administration. - A history of recurrent invasive infections caused by encapsulated organisms, e.g., N. meningitidis and S. pneumoniae. - The use of inhibitors of complement factors (e.g., Factor B, Factor D, C3 inhibitors, anti Complement 5 (C5) antibodies, C5a receptor antagonists) within 6 months prior to the Screening visit. - The use of immunosuppressants (except mycophenolic acids), cyclophosphamide or systemic corticosteroids at a dose >7.5 mg/day (or equivalent for a similar medication) within 90 days of study drug administration. |
- Participantes que hayan recibido cualquier trasplante de células o de órganos, incluyendo trasplante de riñón. - Glomerulonefritis rápidamente progresiva con formación de semilunas (definida como una disminución del 50 % en la TFGe en 3 meses) con hallazgos en la biopsia renal de formación de semilunas glomerulares en al menos un 50 % de los glomérulos. - Biopsia renal que muestre fibrosis intersticial/atrofia tubular (FI/AT) de más del 50 %. - Gammapatía monoclonal de significado indeterminado (GMSI) confirmada mediante la medición de cadenas ligeras libres en suero u otros medios siguiendo el tratamiento de referencia local. - Participantes con infección bacteriana, vírica o por hongos activa y sistémica durante los 14 días anteriores a la administración del tratamiento del estudio - Presencia de fiebre >/=8 °C durante los 7 días anteriores a la administración del tratamiento del estudio. - Antecedentes de infecciones invasivas recurrentes causadas por organismos encapsulados, p. ej., meningococo o neumococo. - Uso de inhibidores de factores del complemento (p. ej., factor B, factor D, inhibidores C3, anticuerpos anticomplemento 5 (C5), antagonistas de los receptores C5a) durante los 6 meses anteriores a la visita de selección. - Uso de inmunosupresores (excepto ácidos micofenólicos), ciclofosfamida o corticosteroides sistémicos a una dosis >7,5 mg/día (o equivalente para una medicación similar) durante los 90 días anteriores a la administración del fármaco del estudio. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Log-transformed ratio to baseline in UPCR (sampled from a 24-hour urine collection) |
Cociente transformado logarítmicamente del cociente proteína en orina (tomado de una recogida de orina de 24 horas) desde la basal. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
- Change from baseline in eGFR - A participant meets the requirements of the composite renal endpoint if he/she satisfies: (1) a stable or improved eGFR compared to the baseline visit (</=15% reduction in eGFR), and (2) a >/=50% reduction in UPCR compared to the baseline visit. - Change from baseline in disease total activity score in a renal biopsy. - Change in the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT Fatigue) score. - Occurrence of clinically significant vital signs, ECGs, and safety laboratory measurements, as well as adverse events (AEs), AEs of special interest, and study drug discontinuation due to an AE. |
-Cambio en la TFGe desde la basal -Un participante cumple los requisitos de la variable renal compuesta si cumple los siguientes criterios a los 6 meses: (1) una TFGe estable o mejorada respecto a la visita basal (reducción </=15 % en la TFGe) y (2) una reducción >/=50 % en el CPC en orina respecto a la visita basal -Cambio en la puntuación total de la actividad de la enfermedad en una biopsia renal desde la basal. -Cambio en la puntuación obtenida en la Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue). -Valoración las constantes vitales clínicamente significativas, los electrocardiogramas (ECG) y los valores analíticos de seguridad , así como los acontecimientos adversos (AA), los AA de especial interés y la discontinuación del fármaco del estudio debido a un AA (o a cualquier problema de seguridad). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
tolerability |
tolerabilidad |
|
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 | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 17 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Brazil |
Canada |
China |
India |
Israel |
Japan |
Turkey |
United States |
Belgium |
France |
Germany |
Italy |
Netherlands |
Spain |
Switzerland |
United Kingdom |
Czechia |
Argentina |
Greece |
|
E.8.7 | Trial has a data monitoring committee | Yes |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | 24 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 3 |