- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00048633
Phase II Study to Evaluate Tariquidar (XR9576), a Selective MDR-1 Inhibitor, in Chemotherapy Resistant Advanced Breast Cancer
The primary objective of this phase II study is to assess if XR9576, a selective MDR-1 inhibitor, is able to reverse primary doxorubicin or taxane resistance in advanced breast cancer. Clinical activity will be measured by objective tumor response rates observed after treatment with XR9576 in combination with taxane or anthracycline containing chemotherapy in patients previously resistant to the same agent(s).
The secondary objectives of the study are to assess the biological activity of XR9576 and evaluate MDR-1 expression in these tumors. The MDR-1 inhibitory activity of XR9576 will be evaluated by serial sestamibi scans of the tumor. MDR-1 expression will be detected by immunohistochemistry.
Descripción general del estudio
Tipo de estudio
Inscripción
Fase
- Fase 2
Contactos y Ubicaciones
Ubicaciones de estudio
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Florida
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Jacksonville, Florida, Estados Unidos, 32207-5905
- Florida Oncology Associates
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Indiana
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Vincennes, Indiana, Estados Unidos, 47591
- Medical Center of Vincennes
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Texas
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Arlington, Texas, Estados Unidos, 76012
- Arlington Cancer Center
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Houston, Texas, Estados Unidos, 77030-4009
- MD Anderson Cancer Center
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion criteria:
Histologically proven breast cancer with primary resistance to anthracyclines (doxorubicin, epirubicin) or taxane (paclitaxel, docetaxel) or both. Primary chemotherapy resistance is defined for the purpose of this protocol as any of the following:
- Progression after a minimum of 1 cycles of therapy, or
- Stable disease after a minimum of 2 cycles of therapy or,
- Relapse within 6 months after completion of an anthracycline or/and taxane containing chemotherapy regimen.
- Patients with anthracycline/taxane resistance INOPERABLE, locally advanced breast cancer are eligible.
- Patients must have measurable disease as defined by the RECIST criteria in their breast/nodal regions or at a distant organ site(s).
- There is no limit on prior hormonal therapies but only one prior chemotherapy for metastatic breast cancer is allowed.
- Patients may receive concomitant bisphosphonate therapy for bone metastasis.
- Patients may continue Herceptin if it has previously been started. Herceptin cannot be added to the chemotherapy regimen as a new agent at the same time when XR9576 is initiated.
- Patients much have recovered from acute toxic effects of any prior therapy.
- Zubrod performance status less than or equal to 2.
- Adequate bone marrow function: platelets greater than or equal to 100,000/mm3, ANC greater than or equal to 1500 cells/mm3, hemoglobin greater than or equal to 8g/dl.
- Normal renal function: creatinine less than or equal to 2.0 mg/dl. Adequate liver function: bilirubin less than or equal to 1.5 mg/dl. Transaminase (SGOT) and alkaline phosphatase must be less than or equal to 1.5 x of the upper limit of normal in the absence of bone or liver metastasis, or less than or equal to 2.5 x of the upper limit of normal in the presence of radiologically apparent liver metastasis or bone metastasis, respectively.
- Female patients must be of non-lactating and using adequate contraception if premenopausal. Beta-HCG will be checked in premenopausal patients if clinically indicated.
- Patients with brain metastases whose disease remained stable for more than 3 months after completing therapy to the brain are eligible.
- Written informed consent.
Exclusion criteria:
- More than 1 chemotherapy regimen for metastatic breast cancer.
- Patients who relapsed more than 6 months after completion of anthracycline or taxane therapy.
- Current treatment with a non-taxane, non-anthracycline based chemotherapy.
- Uncontrolled psychiatric, or social (addictive) disorders that would preclude obtaining informed consent or patient participation in the study.
- Clinical contraindication of continued anthracycline or taxane therapy. For patients who show primary resistance to anthracyclines this includes greater than 300 mg/m2 maximum life-time cumulative dose of doxorubicin, symptomatic heart failure, history of heart failure, recent myocardial infarction (less than 6 months) or left ventricular ejection fraction below normal range. For patients with primary resistance to taxanes, persistent grade 2 or greater neuropathy (neuropathy that interferes with function).
- Patients with operable primary breast cancer are not eligible.
- Patients who have developed primary resistance to the chemotherapy combination of doxorubicin/docetaxel.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
---|---|
Experimental: Tariquidar
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Director de estudio: Graeme R Boniface, Sponsor GmbH
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- TQD BRST 001
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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