15 noviembre 2017
Zepsyre . La Fase III Pulmón Recibe la Recomendación Positiva del IDMC para Continuar sin Cambios .
P.J.: Una indicación que de salir al Mercado podría conseguir unas ventas pico de 600 Millones ... Según los analistas de RX Securities .
Sylentis ( PharmaMar Group ) ha desarrollado un compuesto ( SYL136001v10 ) para tratar enfermedades de la retina, como la degeneración macular asociada a la edad y la retinopatía diabética, que se administrará mediante gotas oftálmicas en lugar de inyecciones intraoculares.
Covadonga Piñeda, Autora Principal del Estudio con el Nuevo Farmaco SYL 136001v10 y Responsable de I+D de Sylentis. ( Grupo PharmaMar ).
El compuesto entrará en fase de ensayo clínico a finales de 2018 .
La degeneración macular y la retinopatía diabética son tratadas hasta ahora con inyecciones intravítreas .
Un fármaco de Sylentis trata las enfermedades de retina con gotas en vez de inyecciones .
El fármaco, que se ha probado en animales, es un ARN pequeño de interferencia capaz de penetrar en las células de la retina y bloquear la formación de nuevos vasos sanguíneos.
Ana Hernando | | 13 noviembre 2017 .
Un nuevo compuesto, desarrollado por la empresa de biotecnología Sylentis, es capaz de penetrar en la retina para tratar la degeneración macular asociada a la edad y la retinopatía diabética, simplemente con la administración de gotas oftálmicas.
El fármaco SYL136001v10 de la firma del grupo PharmaMar está todavía en fase preclínica. “Su eficacia ha sido probada en modelos animales y los ensayos con humanos se iniciarán a finales de 2018", comenta a Sinc Covadonga Pañeda, gerente de I+D de Sylentis.
Un estudio sobre el SYL136001v10, cuya autora principal es Pañeda, se presentó a finales de septiembre en el XIII Encuentro Anual de la Sociedad Terapéutica de Oligonucleótidos, celebrado en Burdeos (Francia).
Objetivo: silenciar la expresión de la proteína NRARP .
La responsable explica que este compuesto “es un ARN pequeño de interferencia (ARNi) diseñado para silenciar la expresión de NRARP, una proteína que controla la formación de nuevos vasos sanguíneos en la retina”, agrega.
De este modo –indica–, “el fármaco ejerce su acción entrando en las células de la retina, donde impide la síntesis de esta proteína y bloquea la formación de nuevos vasos, que es una de las características fundamentales de enfermedades degenerativas de la retina”.
Los compuestos usados en la actualidad para el tratamiento de estas dolencias están basados en anticuerpos grandes que no pueden penetrar desde la superficie ocular hasta la retina, por lo que deben ser administrados mediante inyecciones intravítreas.
Así, “los pacientes que sufren degeneración macular asociada a la edad o retinopatía diabética deben dirigirse al hospital donde los tratamientos se realizan con inyecciones oculares, lo que resulta molesto y doloroso, además de suponer una importante inversión económica para el sistema sanitario”, dice Covadonga Pañeda.
Eficacia en modelos animales
Sin embargo, destaca, “los ARNi, como el SYL136001v10 son hasta 10 veces más pequeños que estos tratamientos. Su tamaño les permite penetrar en la retina e inhibir la formación de nuevos vasos sangíneos, tras su aplicación en gotas oftálmicas, tal y como hemos demostrado en modelos animales”.
En concreto, “los estudios de eficacia han probado que la reducción de NRARP en la retina mediante ARNi lleva a la regresión de las lesiones angiogénicas retinales y que las reducciones observadas son equivalentes a las del anti-VEGF, que es el estándar de tratamiento actual para estas enfermedades con inyecciones oculares”, subraya la gerente I+D.
La firma tiene previsto encargarse de los primeros estudios clínicos de eficacia. Una vez demostrada la prueba de concepto en humanos, tratará de licenciar el fármaco a una multinacional.
El compuesto entrará en fase de ensayo clínico a finales de 2018 .
La degeneración macular y la retinopatía diabética son tratadas hasta ahora con inyecciones intravítreas .
Un fármaco de Sylentis trata las enfermedades de retina con gotas en vez de inyecciones .
El fármaco, que se ha probado en animales, es un ARN pequeño de interferencia capaz de penetrar en las células de la retina y bloquear la formación de nuevos vasos sanguíneos.
Ana Hernando | | 13 noviembre 2017 .
Un nuevo compuesto, desarrollado por la empresa de biotecnología Sylentis, es capaz de penetrar en la retina para tratar la degeneración macular asociada a la edad y la retinopatía diabética, simplemente con la administración de gotas oftálmicas.
El fármaco SYL136001v10 de la firma del grupo PharmaMar está todavía en fase preclínica. “Su eficacia ha sido probada en modelos animales y los ensayos con humanos se iniciarán a finales de 2018", comenta a Sinc Covadonga Pañeda, gerente de I+D de Sylentis.
Un estudio sobre el SYL136001v10, cuya autora principal es Pañeda, se presentó a finales de septiembre en el XIII Encuentro Anual de la Sociedad Terapéutica de Oligonucleótidos, celebrado en Burdeos (Francia).
Objetivo: silenciar la expresión de la proteína NRARP .
La responsable explica que este compuesto “es un ARN pequeño de interferencia (ARNi) diseñado para silenciar la expresión de NRARP, una proteína que controla la formación de nuevos vasos sanguíneos en la retina”, agrega.
De este modo –indica–, “el fármaco ejerce su acción entrando en las células de la retina, donde impide la síntesis de esta proteína y bloquea la formación de nuevos vasos, que es una de las características fundamentales de enfermedades degenerativas de la retina”.
Los compuestos usados en la actualidad para el tratamiento de estas dolencias están basados en anticuerpos grandes que no pueden penetrar desde la superficie ocular hasta la retina, por lo que deben ser administrados mediante inyecciones intravítreas.
Así, “los pacientes que sufren degeneración macular asociada a la edad o retinopatía diabética deben dirigirse al hospital donde los tratamientos se realizan con inyecciones oculares, lo que resulta molesto y doloroso, además de suponer una importante inversión económica para el sistema sanitario”, dice Covadonga Pañeda.
Eficacia en modelos animalesSin embargo, destaca, “los ARNi, como el SYL136001v10 son hasta 10 veces más pequeños que estos tratamientos. Su tamaño les permite penetrar en la retina e inhibir la formación de nuevos vasos sangíneos, tras su aplicación en gotas oftálmicas, tal y como hemos demostrado en modelos animales”.
En concreto, “los estudios de eficacia han probado que la reducción de NRARP en la retina mediante ARNi lleva a la regresión de las lesiones angiogénicas retinales y que las reducciones observadas son equivalentes a las del anti-VEGF, que es el estándar de tratamiento actual para estas enfermedades con inyecciones oculares”, subraya la gerente I+D.
La firma tiene previsto encargarse de los primeros estudios clínicos de eficacia. Una vez demostrada la prueba de concepto en humanos, tratará de licenciar el fármaco a una multinacional.
Yondelis CTOS-17 . Long-term trabectedin therapy well tolerated for soft tissue sarcoma .
November 2017 // WAILEA, Hawaii .
Long-term therapy with trabectedin appeared well tolerated among patients with soft tissue sarcoma, according to retrospective study results presented at Connective Tissue Oncology Society Annual Meeting.
Cumulative toxicity often limits long-term systemic therapy for patients with soft tissue sarcoma, according to study background.
The FDA approved trabectedin (Yondelis; Janssen, PharmaMar) — an antitumor chemotherapy drug derived from the Caribbean sea squirt — for treatment of patients with unresectable or metastatic liposarcoma or leiomyosarcoma who underwent prior treatment with an anthracycline-containing regimen.
Through an expanded access program, researchers conducted a multicenter, open-label, single-arm phase 2 study to evaluate trabectedin for patients with locally advanced or metastatic soft tissue sarcoma who underwent prior conventional therapies.
Elizabeth J. Davis, MD, assistant professor of medicine in the division of hematology/oncology at Vanderbilt University School of Medicine, and colleagues subsequently conducted a retrospective analysis on the efficacy and safety on expanded access program enrollees who received long-term trabectedin treatment, defined as 6 months or longer.
The analysis included patients with multiple histologies of pretreated relapsed or refractory soft tissue sarcoma. All participants received at least 6 months of trabectedin, administered at 1.5 mg/m2 IV every 3 weeks.
Davis and colleagues compared efficacy and safety outcomes of patients who received 6 to 12 months of treatment with those of patients who received more than 12 months of treatment.
A total of 1,803 patients received treatment through the expanded access program from 2005 to 2010. The majority were women (58.5%) and aged younger than 65 years (80.5%). Most patients had baseline ECOG performance status of 0 or 1 (94.3%), and had either leiomyosarcoma or liposarcoma (61.1%).
Approximately one in five patients (n = 401; 21.6%) remained on treatment for at least 6 months, 268 (14.5%) remained on treatment for 6 to 12 months; and 133 (7.2%) remained on treatment for more than 12 months.
Median OS was 11.9 months in the entire cohort, 18.14 months (95% CI, 15.51-21.16) among patients treated for 6 to 12 months, and 47.01 months (95% CI, 36.7-not estimable) among patients treated for more than 12 months.
Clinical benefit rate — defined as complete response plus partial response plus stable disease — was 41.2% in the entire cohort, 47.4 (95% CI, 41.3-53.6) among those who received treatment for 6 to 12 months, and 38.3% (95% CI, 30.1-47.2) among those who received treatment for more than a year.
Among patients treated for 6 to 12 months, one (0.4%) achieved complete response, 20 (7.5%) achieved partial response, 106 (39.6%) achieved stable disease and 20 (7.5%) experienced progressive disease. Among patients treated for more than 12 months, three (2.3%) achieved complete response, six (4.5%) achieved partial response, 42 (31.6%) achieved stable disease and 12 (9%) experienced progressive disease.
Incidence of treatment-emergent adverse events appeared similar between those treated for 6 to 12 months and those treated longer than 12 months (84% vs. 89.5%). The most common treatment-emergent adverse events were nausea (40.7% vs. 48.1%), neutropenia (39.6% vs. 47.4%), fatigue (36.6% vs. 39.1%), blood alkaline phosphatase increase (32.8% vs. 37.6%), alanine aminotransferase increase (26.9% vs. 32.3%), anemia (23.9% vs. 27.1%), vomiting (25.7% vs. 19.5%), thrombocytopenia (20.5% vs. 21.8%) and constipation (17.2% vs. 30.1%).
Patients treated for more than 12 months appeared more likely than those treated for 6 to 12 months to require treatment cycle delays (61.7% vs. 57.5%) or dose reductions (78.2% vs. 64.2%).
They also were more likely to experience serious treatment-emergent adverse events (35.3% vs. 32.8%), or grade 3/grade 4 adverse events (26.3%) vs. 25%).
Sixteen patients — 12 (4.5%) of those treated for 6 to 12 months, and four (3%) of those treated for more than 12 months — terminated treatment due to treatment-emergent adverse events.
The majority of patients in both groups discontinued treatment (95.1% for 6 to 12 months; 77.4% for more than 12 months). Most patients discontinued treatment due to disease progression.
One patient with synovial sarcoma remained on treatment for 55 months (64 cycles), and another patient with uterine leiomyosarcoma remained on treatment for 54 months (73 cycles).
“Improved median OS may be achieved in patients who experience prolonged disease stabilization; however, adjustments in the trabectedin dose or schedule are frequently required,” Davis and colleagues wrote. “Trabectedin is indicated for the treatment of patients with unresectable or metastatic liposarcoma or leiomyosarcoma who received a prior anthracycline-containing regimen. However, there is a cohort of [patients with other sarcoma histologies) who derive prolonged benefit.” – by Mark Leiser
Long-term therapy with trabectedin appeared well tolerated among patients with soft tissue sarcoma, according to retrospective study results presented at Connective Tissue Oncology Society Annual Meeting.
Cumulative toxicity often limits long-term systemic therapy for patients with soft tissue sarcoma, according to study background.The FDA approved trabectedin (Yondelis; Janssen, PharmaMar) — an antitumor chemotherapy drug derived from the Caribbean sea squirt — for treatment of patients with unresectable or metastatic liposarcoma or leiomyosarcoma who underwent prior treatment with an anthracycline-containing regimen.
Through an expanded access program, researchers conducted a multicenter, open-label, single-arm phase 2 study to evaluate trabectedin for patients with locally advanced or metastatic soft tissue sarcoma who underwent prior conventional therapies.
Elizabeth J. Davis, MD, assistant professor of medicine in the division of hematology/oncology at Vanderbilt University School of Medicine, and colleagues subsequently conducted a retrospective analysis on the efficacy and safety on expanded access program enrollees who received long-term trabectedin treatment, defined as 6 months or longer.
The analysis included patients with multiple histologies of pretreated relapsed or refractory soft tissue sarcoma. All participants received at least 6 months of trabectedin, administered at 1.5 mg/m2 IV every 3 weeks.
Davis and colleagues compared efficacy and safety outcomes of patients who received 6 to 12 months of treatment with those of patients who received more than 12 months of treatment.
A total of 1,803 patients received treatment through the expanded access program from 2005 to 2010. The majority were women (58.5%) and aged younger than 65 years (80.5%). Most patients had baseline ECOG performance status of 0 or 1 (94.3%), and had either leiomyosarcoma or liposarcoma (61.1%).
Approximately one in five patients (n = 401; 21.6%) remained on treatment for at least 6 months, 268 (14.5%) remained on treatment for 6 to 12 months; and 133 (7.2%) remained on treatment for more than 12 months.
Median OS was 11.9 months in the entire cohort, 18.14 months (95% CI, 15.51-21.16) among patients treated for 6 to 12 months, and 47.01 months (95% CI, 36.7-not estimable) among patients treated for more than 12 months.
Clinical benefit rate — defined as complete response plus partial response plus stable disease — was 41.2% in the entire cohort, 47.4 (95% CI, 41.3-53.6) among those who received treatment for 6 to 12 months, and 38.3% (95% CI, 30.1-47.2) among those who received treatment for more than a year.
Among patients treated for 6 to 12 months, one (0.4%) achieved complete response, 20 (7.5%) achieved partial response, 106 (39.6%) achieved stable disease and 20 (7.5%) experienced progressive disease. Among patients treated for more than 12 months, three (2.3%) achieved complete response, six (4.5%) achieved partial response, 42 (31.6%) achieved stable disease and 12 (9%) experienced progressive disease.
Incidence of treatment-emergent adverse events appeared similar between those treated for 6 to 12 months and those treated longer than 12 months (84% vs. 89.5%). The most common treatment-emergent adverse events were nausea (40.7% vs. 48.1%), neutropenia (39.6% vs. 47.4%), fatigue (36.6% vs. 39.1%), blood alkaline phosphatase increase (32.8% vs. 37.6%), alanine aminotransferase increase (26.9% vs. 32.3%), anemia (23.9% vs. 27.1%), vomiting (25.7% vs. 19.5%), thrombocytopenia (20.5% vs. 21.8%) and constipation (17.2% vs. 30.1%).
Patients treated for more than 12 months appeared more likely than those treated for 6 to 12 months to require treatment cycle delays (61.7% vs. 57.5%) or dose reductions (78.2% vs. 64.2%).
They also were more likely to experience serious treatment-emergent adverse events (35.3% vs. 32.8%), or grade 3/grade 4 adverse events (26.3%) vs. 25%).
Sixteen patients — 12 (4.5%) of those treated for 6 to 12 months, and four (3%) of those treated for more than 12 months — terminated treatment due to treatment-emergent adverse events.
The majority of patients in both groups discontinued treatment (95.1% for 6 to 12 months; 77.4% for more than 12 months). Most patients discontinued treatment due to disease progression.
One patient with synovial sarcoma remained on treatment for 55 months (64 cycles), and another patient with uterine leiomyosarcoma remained on treatment for 54 months (73 cycles).
“Improved median OS may be achieved in patients who experience prolonged disease stabilization; however, adjustments in the trabectedin dose or schedule are frequently required,” Davis and colleagues wrote. “Trabectedin is indicated for the treatment of patients with unresectable or metastatic liposarcoma or leiomyosarcoma who received a prior anthracycline-containing regimen. However, there is a cohort of [patients with other sarcoma histologies) who derive prolonged benefit.” – by Mark Leiser
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