E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Pemphigus Vulgaris or Pemphigus Foliaceus |
Pénfigo vulgar o pénfigo foliáceo |
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E.1.1.1 | Medical condition in easily understood language |
Blistering autoimmune diseases that affect the skin and mucous membranes |
Enfermedades autoinmunes ampollosas que afectan la piel y las membranas mucosas |
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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 | LLT |
E.1.2 | Classification code | 10052802 |
E.1.2 | Term | Pemphigus vulgaris |
E.1.2 | System Organ Class | 100000004858 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10057069 |
E.1.2 | Term | Pemphigus foliaceus |
E.1.2 | System Organ Class | 100000004858 |
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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 assess the safety of extended treatment and re-treatment with efgartigimod PH20 SC in patients with PV or PF |
Evaluar la seguridad del tratamiento ampliado y el retratamiento con efgartigimod PH20 SC en pacientes con PV o PF |
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E.2.2 | Secondary objectives of the trial |
To evaluate the efficacy of efgartigimod PH20 SC treatment in PV and PF To evaluate the effects of efgartigimod PH20 SC on quality of life (QoL) in patients with PV or PF To evaluate the pharmacokinetics (PK) of efgartigimod PH20 SC in patients with PV or PF To evaluate the PD of efgartigimod PH20 SC in patients with PV or PF To evaluate the immunogenicity of efgartigimod PH20 SC in patients with PV or PF |
Evaluar la eficacia del tratamiento de efgartigimod PH20 SC en PV y PF Evaluar los efectos de efgartigimod PH20 SC en la calidad de vida de pacientes con PV o PF Evaluar la farmacocinética (FC) de efgartigimod PH20 SC en pacientes con PV o PF Evaluar la FD de efgartigimod PH20 SC en pacientes con PV o PF Evaluar la inmunogenicidad de efgartigimod PH20 SC en pacientes con PV o PF |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Participants must meet all of the following inclusion criteria: 1. Ability to understand the requirements of the trial, to provide written informed consent (including consent for the use and disclosure of research-related health information), willingness and ability to comply with the trial protocol procedures (including required trial visits). 2. The patient participated in trial ARGX-113-1904 and completed the study or has the defined criteria for rollover. 3. Women of childbearing potential: a. Must have a negative urine pregnancy test at baseline before trial medication can be administered. b. Must be on a stable regimen for at least 1 month of at least 1 highly effective method of contraception (ie, failure rate of less than 1% per year) during the trial and for 90 days after the last administration of IMP. 4. Non-sterilized male patients who are sexually active with a female partner of childbearing potential must use effective contraception from first administration of IMP through 90 days after the last administration of the IMP. Male patients practicing true sexual abstinence (as consistent with preferred and usual life style) can be included. Sterilized male patients who have had a vasectomy and with documented absence of sperm post-procedure can be included. Male patients are not allowed to donate sperm from first administration of IMP through 90 days after the last dose of IMP. |
Los participantes deben cumplir con todos los siguientes criterios de inclusión: 1.Capacidad para comprender los requisitos del ensayo, otorgar el consentimiento informado por escrito (incluido el consentimiento para el uso y la divulgación de información médica relacionada con la investigación) y disposición y capacidad para cumplir los procedimientos del protocolo del ensayo (incluidas las visitas del ensayo exigidas) 2.El paciente ha participado en el ensayo ARGX-113-1904 y ha completado el estudio o tiene los criterios definidos para la transferencia. 3.Mujeres en edad fértil: a.Prueba de embarazo en orina negativa en el momento basal antes de que pueda administrarse la medicación del ensayo b.Deben estar recibiendo una pauta estable durante 1 mes como mínimo de al menos un método anticonceptivo muy eficaz (es decir, tasa de fallos inferior al 1% anual) durante el ensayo y durante 90 días después de la última administración del MEI 4.Los varones no esterilizados que mantengan relaciones sexuales con una pareja en edad fértil deberán usar un método anticonceptivo eficaz desde la primera administración del MEI hasta 90 días después de la última dosis. Podrán participar varones que practiquen una abstinencia sexual real (compatible con el modo de vida preferido y habitual). Podrán participar varones esterilizados que se hayan sometido a una vasectomía con ausencia de espermatozoides documentada después del procedimiento. Los varones no podrán donar semen desde la primera administración del MEI hasta 90 días después de la última dosis del MEI. |
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E.4 | Principal exclusion criteria |
Participants are excluded from the trial if any of the following criteria apply: 1. Pregnant and lactating women and those intending to become pregnant during the trial or within 90 days after the last administration of IMP. 2. Patients with clinical evidence of other significant serious disease or patients who recently underwent or have planned a major surgery during the period of the trial, or any other condition in the opinion of the investigator, that could confound the results of the trial or put the patient at undue risk. 3. Known hypersensitivity to any of the components of the administered treatments. |
Los participantes quedan excluidos del ensayo si se aplica alguno de los siguientes criterios: 1.Mujeres embarazadas y lactantes y mujeres que pretendan quedarse embarazadas durante el ensayo o en los 90 días siguientes a la última administración del MEI. 2.Pacientes con signos clínicos de otra enfermedad grave importante o pacientes que se hayan sometido recientemente o tengan previsto someterse a una intervención de cirugía mayor durante el período del ensayo, o cualquier otro proceso que, en opinión del investigador, pueda confundir los resultados del ensayo o suponer un riesgo excesivo para el paciente. 3.Hipersensibilidad conocida a cualquiera de los componentes de los tratamientos administrados |
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Incidence and severity of treatment-emergent adverse events (TEAEs), adverse events of special interest (AESIs), and serious adverse events (SAEs) by System Organ Class (SOC) and Preferred Term (PT) 2. Vital signs, physical examination, electrocardiogram (ECG), and clinical laboratory safety evaluations |
1.Incidencia de acontecimientos adversos surgidos durante el tratamiento (AAST), acontecimientos adversos de interés especial (AAIE) y AAG por clase de órgano y sistema (SOC) y término preferente (TP). 2.Constantes vitales, exploración física, electrocardiograma(ECG), y evaluaciones de seguridad del laboratorio clínico |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Up to 60 weeks |
Hasta 60 semanas |
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E.5.2 | Secondary end point(s) |
1. Proportion of PV patients who achieve CR on minimal prednisone therapy 2. Proportion of PV and PF patients who achieve CR on minimal prednisone therapy in patients with PV and PF 3. 3. Time to DC 4. Time to CR 5. Time to CR on minimal prednisone therapy 6. Time to CR off therapy 7. Time to flare 8. Rate of treatment failure 9. Rate of flare 10. Cumulative prednisone dose over the trial 11. Pemphigus Disease Area Index (PDAI) at each visit 12. EuroQol 5-Dimension 5-Level (EQ-5D-5L) score 13. Autoimmune Bullous Disease Quality of Life (ABQOL) score 14. Efgartigimod serum concentrations 15. Total IgG and subtype (IgG1, IgG2, IgG3, IgG4) serum levels 16. Anti-Dsg-1 and -3 autoantibodies serum levels 17. Anti-drug antibodies (ADAs) to efgartigimod (serum levels) and rHuPH20 (plasma levels) |
1.Proporción de pacientes con PV que obtengan una RC con la dosis mínima de prednisona 2.Proporción de pacientes con PV y PF que obtengan una RC con la dosis mínima de prednisona 3.Tiempo hasta el CE 4.Tiempo hasta la RC 5.Tiempo hasta la RC con la dosis mínima de prednisona 6.Tiempo hasta la RC sin tratamiento 7.Tiempo hasta el brote 8.Tasa de fracasos del tratamiento 9.Tasa de brotes 10.Dosis acumulada de prednisona durante el ensayo 11.PDAI en cada visita 12.Puntuación en escala EuroQol de cinco dimensiones (EQ-5D-5L) 13.Puntuación de ABQOL (Calidad de vida con enfermedad autoinmunitaria ampollosa) 14.Concentraciones séricas de efgartigimod 15.Concentraciones séricas de IgG total y subtipo (IgG1, IgG2, IgG3, IgG4) 16.Concentraciones séricas de autoanticuerpos anti-Dsg-1 y -3 17.Anticuerpos (ACF) contra efgartigimod (niveles séricos) y rHuPH20 (niveles de plasma) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1+2: up to 52 weeks treatment period 3,4,5,6,7,8,9: up to 60 weeks 10,11,12,13: up to 52 weeks treatment period 14,15,16, 17: up to 60 weeks |
1+2:periodo de tratamiento de hasta 52 semanas 3,4,5,6,7,8,9: hasta 60 semanas 10,11,12,13: periodo de tratamiento de hasta 52 semanas 14,15,16,17: hasta 60 semanas |
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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 | 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 |
Immunogenicity |
Inmunogenicidad |
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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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
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 | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
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 | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 51 |
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 |
Australia |
Bulgaria |
France |
Georgia |
Germany |
Greece |
Hungary |
India |
Israel |
Italy |
Japan |
Poland |
Romania |
Russian Federation |
Spain |
Turkey |
Ukraine |
United Kingdom |
United States |
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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 | 2 |
E.8.9.1 | In the Member State concerned months | 9 |
E.8.9.1 | In the Member State concerned days | 25 |
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 | 9 |
E.8.9.2 | In all countries concerned by the trial days | 25 |