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Linezolid in the Treatment of Subjects With Complicated Skin and Soft Tissue Infections Proven to be Due to Methicillin-Resistant Staphylococcus Aureus

0 criterios cumplidosConsulta de un vistazo cómo tu perfil cumple con cada criterio de elegibilidad.
Qué se está evaluando

Colección de datos

Quiénes están siendo reclutados

Enfermedades Transmisibles
+3

+ Infecciones Bacterianas y Micosis
+ Infecciones bacterianas
A partir de 18 años
Ver todos los criterios de elegibilidad
Cómo está diseñado el estudio

Estudio de Tratamiento

Fase 4
Intervencional
Inicio del estudio: octubre de 2004
Ver detalles del protocolo

Resumen

Patrocinador PrincipalPfizer
Última actualización: 14 de enero de 2026
Extraido de una base de datos validada por el gobierno.Reclamar como socio
Fecha de inicio: 1 de octubre de 2004Fecha en la que se inscribió al primer participante.

To determine if linezolid is superior to vancomycin in the treatment of complicated skin and soft tissue infections due to MRSA in adult subjects

Título OficialLinezolid in the Treatment of Subjects With Complicated Skin and Soft Tissue Infections Proven to be Due to Methicillin-Resistant Staphylococcus Aureus 
NCT00087490
Patrocinador PrincipalPfizer
Última actualización: 14 de enero de 2026
Extraido de una base de datos validada por el gobierno.Reclamar como socio

Protocolo

Esta sección proporciona detalles del plan del estudio, incluyendo cómo está diseñado y qué se está evaluando.
Detalles del Diseño
Se reclutarán 1077 pacientesNúmero total de participantes que el ensayo clínico espera reclutar.
Estudio de Tratamiento
Estos estudios prueban nuevas formas de tratar una enfermedad, condición o problema de salud. El objetivo es determinar si un nuevo medicamento, terapia o enfoque funciona mejor o tiene menos efectos secundarios que las opciones existentes.

Cómo se asignan los participantes a diferentes grupos/brazos
En este estudio clínico, los participantes se colocan en grupos de forma aleatoria, como si se lanzara una moneda. Esto garantiza que el estudio sea justo e imparcial, lo que hace que los resultados sean más confiables. Al asignar a los participantes al azar, los investigadores pueden comparar mejor los tratamientos sin influencias externas.

Otras formas de asignar participantes
Asignación no aleatoria: Los participantes se asignan en función de factores específicos, como su condición médica o la decisión de un médico.
Ninguna (ensayo de un solo brazo): Si el estudio tiene un solo grupo, todos los participantes reciben el mismo tratamiento y no se necesita asignación.

Cómo se administran los tratamientos a los participantes
Los participantes se dividen en diferentes grupos, y cada uno recibe un tratamiento específico al mismo tiempo. Esto ayuda a los investigadores a comparar la eficacia de los distintos tratamientos entre sí.

Otras formas de asignar tratamientos
Asignación a un solo grupo: Todos reciben el mismo tratamiento.
Asignación cruzada: Los participantes cambian de tratamiento durante el estudio.
Asignación factorial: Los participantes reciben diferentes combinaciones de tratamientos.
Asignación secuencial: Los participantes reciben tratamientos uno tras otro en un orden específico, posiblemente según su respuesta individual.
Otra asignación: La asignación de tratamientos no sigue un diseño estándar o predefinido.

Cómo se mantiene la confidencialidad de las intervenciones asignadas a los participantes
Todos los involucrados en el estudio saben qué tratamiento se está administrando. Esto se utiliza cuando no es posible o necesario ocultar los detalles del tratamiento a los participantes o investigadores.

Otras formas de enmascarar la información
Simple ciego: Los participantes no saben qué tratamiento están recibiendo, pero los investigadores sí.
Doble ciego: Ni los participantes ni los investigadores saben qué tratamiento se está administrando.
Triple ciego: Participantes, investigadores y evaluadores de resultados no saben qué tratamiento se está administrando.
Cuádruple ciego: Participantes, investigadores, evaluadores de resultados y personal de atención no saben qué tratamiento se está administrando.

Elegibilidad

Los investigadores buscan pacientes que cumplan ciertos criterios, conocidos como criterios de elegibilidad: estado general de salud o tratamientos previos.
Condiciones
Criterios
Cualquier sexoSexo biológico de los participantes elegibles para inscribirse.
A partir de 18 añosRango de edades de los participantes que pueden unirse al estudio.
Voluntarios sanos no permitidosIndica si personas sanas, sin la condición que se estudia, pueden participar.
Condiciones
Patología
Enfermedades Transmisibles
Infecciones Bacterianas y Micosis
Infecciones bacterianas
Infecciones
Procesos Patológicos
Infecciones Estafilocócicas
Criterios

Inclusion Criteria: * Male and female subjects with signs or symptoms consistent with infection, and if available, laboratory findings consistent with staphylococcal infection (e.g., Gram stain and culture results). * Signs and symptoms consistent with infection * Infection suspected to be due to Methicillin Resistant Staphylococcus Aureus Exclusion Criteria: * Subjects who were treated with a previous antibiotic (systemic or topical) with MRSA activity (other than linezolid or vancomycin) for more than 24 hours and treatment extended into the 72 hour period prior to the first dose of study drug, unless documented to be a treatment failure (72 hours of treatment and not responding). * Subjects with uncomplicated skin or superficial skin structure infection such as superficial/simple cellulitis, impetiginous lesion, furuncle, or simple abscess that only need surgical drainage for cure. * Subjects excluded with necrotizing fasciitis, gas gangrene, osteomyelitis

Plan de Estudio

Conoce todos los tratamientos administrados en este estudio, su descripción detallada y en qué consisten.
Objetivos del Estudio
Objetivos del Estudio
Objetivos Primarios

Clinical response (CR) was based primarily on global assessment of clinical presentation of participant made by investigator at evaluation time point. At EOS, CR was evaluated as "success" (cure: resolution of clinical signs or (/) symptoms of infection when compared to baseline); "failure": persistence/progression of baseline signs/symptoms of infection after at least 2 days of treatment/development of new clinical findings consistent with active infection; "unknown": extenuating circumstances precluding classification to 1 of above. "Unknown" was excluded from present analysis.
Objetivos Secundarios

Duration of Hospital Stay was defined as the number of days the participant was cared as an inpatient in the hospital during the maximum 34 days of the study period. The number of days in the hospital was counted from start of study medication to date of discharge or last date known to be in the hospital (for missing discharge dates and participants who died) or Day 34 for participants who continued hospitalization beyond EOS period.

CR evaluated at EOT visit as "success" (cure: resolution of clinical sign/symptoms of infection when compared with baseline; and improvement: 2/more improvement in clinical sign/symptoms of infection when compared with baseline); "failure": persistence/progression of baseline signs/symptoms of infection after at least 2 days of treatment/development of new clinical findings consistent with active infection; "unknown": extenuating circumstances precluding classification to 1 of above. "Unknown": excluded from present analysis.

CR was based primarily on global assessment of clinical presentation of participant made by investigator at evaluation time point. At EOS, CR was evaluated as "success" (cure: resolution of clinical signs/symptoms of infection when compared to baseline); "failure": persistence/progression of baseline signs/symptoms of infection after at least 2 days of treatment/development of new clinical findings consistent with active infection; "unknown": extenuating circumstances precluding classification to 1 of above. "Unknown" was excluded from present analysis.

CR evaluated at EOT visit as "success" (cure: resolution of clinical sign/symptoms of infection when compared with baseline; and improvement: 2/more improvement in clinical sign/symptoms of infection when compared with baseline); "failure": persistence/progression of baseline signs/symptoms of infection after at least 2 days of treatment/development of new clinical findings consistent with active infection; "unknown": extenuating circumstances precluding classification to 1 of above. "Unknown": excluded from present analysis.

Microbiological outcome dichotomized to "success" (eradication: absence of baseline isolate (BI) in culture of original infection site (IS); presumed eradication: participant cured and no specimen available for culture; superinfection: clinically failed or improved with new pathogen identified from primary IS other than BI; colonization: isolate was present but not producing infection) and "failure" (persistence: BI present in original IS; presumed persistence: clinically failed and no specimen available for culture; recurrence: presence of isolate at EOS, that was eradicated at EOT).

Microbiological outcome dichotomized to "success" (eradication: absence of baseline isolate (BI) in culture of original infection site (IS); presumed eradication: participant cured and no specimen available for culture; superinfection: clinically failed or improved with new pathogen identified from primary IS other than BI; colonization: isolate was present but not producing infection) and "failure" (persistence: BI present in original IS; presumed persistence: clinically failed and no specimen available for culture).

Microbiological outcome dichotomized to "success" (eradication: absence of baseline isolate (BI) in culture of original infection site (IS); presumed eradication: participant cured and no specimen available for culture; superinfection: clinically failed or improved with new pathogen identified from primary IS other than BI; colonization: isolate was present but not producing infection) and "failure" (persistence: BI present in original IS; presumed persistence: clinically failed and no specimen available for culture; recurrence: presence of isolate at EOS, that was eradicated at EOT).

Microbiological outcome dichotomized to "success" (eradication: absence of baseline isolate (BI) in culture of original infection site (IS); presumed eradication: participant cured and no specimen available for culture; superinfection: clinically failed or improved with new pathogen identified from primary IS other than BI; colonization: isolate was present but not producing infection) and "failure" (persistence: BI present in original IS; presumed persistence: clinically failed and no specimen available for culture).

Participant's clinical evaluation of signs and symptoms were based on global assessment by investigator at specific timepoints. Signs and symptoms of an active skin or soft tissue infection caused by suspected MRSA included purulent discharge, nonpurulent discharge, erythema, swelling, induration, tenderness, pain and local skin warmth. It was recorded by the sponsor using wound parameter score ranging from 0 to 3; "0= none, 1= mild, 2= moderate and 3= severe".

Participant's clinical evaluation of signs and symptoms were based on global assessment by investigator at specific timepoints. Signs and symptoms of an active skin or soft tissue infection caused by suspected MRSA included purulent discharge, nonpurulent discharge, erythema, swelling, induration, tenderness, pain and local skin warmth. It was recorded using wound parameter score ranging from 0 to 3; "0= none, 1= mild, 2= moderate and 3= severe".

Duration of Hospital Stay was defined as the number of days the participant was cared as an inpatient in the hospital during the maximum 34 days of the study period. The number of days in the hospital was counted from start of study medication to date of discharge or last date known to be in the hospital (for missing discharge dates and participants who died) or Day 34 for participants who continued hospitalization beyond EOS period.

Duration of intravenous antibiotic treatment was measured as the number of days intravenous doses of study medication was administered, before and after discharge.

Duration of intravenous antibiotic treatment was measured as the number of days intravenous doses of study medication was administered, before and after discharge.

Medical resources utilization included a daily log of the participants' location in the hospital and outside of the hospital (non-hospital location), adjusted duration of stay (difference between duration of stay and the duration of discharge delay) and daily log of study drug dosing.

Centros del Estudio

Estos son los hospitales, clínicas o centros de investigación donde se lleva a cabo el estudio. Puedes encontrar la ubicación más cercana a ti y su estado de reclutamiento.
Este estudio tiene 126 ubicaciones
Suspendido
Pfizer Investigational SiteMontgomery, United StatesVer ubicación
Suspendido
Pfizer Investigational SiteTucson, United States
Suspendido
Pfizer Investigational SiteLos Angeles, United States
Suspendido
Pfizer Investigational SitePalm Springs, United States
Completado126 Centros de Estudio