Guía de imágenes moleculares de la mama para biopsia de mama en pacientes con anomalías mamarias
Estudio clínico piloto para evaluar imágenes moleculares de la mama: orientación para el muestreo de anomalías mamarias
This clinical trial tests how well molecular breast imaging (MBI) works to guide the collection of a breast biopsy in patients with a breast abnormality. Currently, a biopsy is often guided by either ultrasound or mammography in order to ensure that a sample of the correct part of the breast is taken. Sometimes a lesion or part of the lesion cannot be seen on ultrasound or mammography, and, therefore, a biopsy guided with ultrasound or mammography may not be always be accurate. Studies have shown that high resolution MBI may have potential to improve the detection of some breast tumors. This trial uses a new high-resolution MBI system that may help perform a biopsy using MBI.
Descripción general del estudio
Estado
Condiciones
Descripción detallada
PRIMARY OBJECTIVE:
I. To evaluate a methodology for MBI-guided biopsy of suspicious breast lesions.
OUTLINE: Patients are assigned to 1 of 2 study parts.
PART I: Patients receive technetium Tc-99m sestamibi intravenously (IV) and undergo MBI on study.
PART II: Patients receive technetium Tc-99m sestamibi IV and undergo MBI. Patients whose breast lesions of interest are visualized on MBI then undergo breast biopsy using the Stereo Navigator accessory.
After completion of study intervention, patients may be asked to follow up at 3-6 months.
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Clinical Trials Referral Office
- Número de teléfono: 855-776-0015
- Correo electrónico: mayocliniccancerstudies@mayo.edu
Ubicaciones de estudio
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Minnesota
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Rochester, Minnesota, Estados Unidos, 55905
- Reclutamiento
- Mayo Clinic in Rochester
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Contacto:
- Clinical Trials Referral Office
- Número de teléfono: 855-776-0015
- Correo electrónico: mayocliniccancerstudies@mayo.edu
-
Investigador principal:
- Katie N. Hunt, M.D.
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
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PART I: Women aged 18 years or older
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PART I: If able to become pregnant, negative pregnancy test within 48 hours prior to MBI biopsy procedure
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PART I: Individuals who have previously (within the last 3 years) undergo an MBI study and were found to have at least one breast imaging finding on MBI that was subsequently shown (through additional imaging, biopsy or follow-up) to be benign in nature
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PART I: Individuals who have agreed to participate in the study and who have signed the study-specific informed consent
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PART II: Women aged 18 years or older
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PART II: If able to become pregnant, negative pregnancy test within 48 hours prior to MBI biopsy procedure
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PART II: Individuals who have previously (within the last 3 years) undergone an MBI study and were found to have at least one breast imaging finding on MBI that was subsequently shown (through additional imaging, biopsy or follow-up) to be benign or probably benign in nature
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PART II: Individuals who had recent conventional imaging work-up including either x-ray mammography, ultrasound, MBI, or MRI of the breast and are found to have at least one breast imaging finding for which biopsy is required or recommended, specifically:
- Individuals who have a breast abnormality(ies) on imaging with mammography, ultrasound, MBI, or MRI (as per American College of Radiology [ACR] Breast Imaging Reporting and Data System [BIRADS] 3, or higher) and requiring imaging follow-up or biopsy confirmation
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PART II: Individuals who have agreed to participate in the study and who have signed study-specific informed consent
Exclusion Criteria:
- PART I: Women who are pregnant
- PART I: Women who are currently lactating or discontinued breastfeeding < 2 months prior to the study
- PART I: Age less than 18 years
- PART I: Women with breast implant(s) in the breast containing the lesion of interest
- PART I: Inability to provide informed consent
- PART II: Women who are pregnant
- PART II: Women who are currently lactating or discontinued breastfeeding < 2 months prior to the study
- PART II: Age less than 18 years
- PART II: Women with breast implant(s) in the breast containing the lesion of interest
- PART II: Women who have recently (within the last 3 months) undergone biopsy of the breast finding
- PART II: Women who are scheduled for a sentinel node procedure using radioactive Tc-99m within 24 hours of MBI-guided biopsy
- PART II: Patients with contraindications for core biopsy and other invasive procedures such as blood coagulation disorders, infection, or who are unwilling to discontinue use of anticoagulant medication prior to the procedure
- PART II: Inability to provide informed consent
- PART II: Women who have had surgery on the study breast(s) within the past 12 months
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Diagnóstico
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación Secuencial
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: Part I (technetium Tc-99m sestamibi, MBI)
Patients receive technetium Tc-99m sestamibi IV and undergo MBI on study. |
Undergo MBI
Otros nombres:
Given IV
Otros nombres:
|
|
Experimental: Part II (technetium Tc-99m sestamibi, MBI, biopsy)
Patients receive technetium Tc-99m sestamibi IV and undergo MBI. Patients whose breast lesions of interest are visualized on MBI then undergo breast biopsy using the Stereo Navigator accessory. |
Undergo MBI
Otros nombres:
Given IV
Otros nombres:
Undergo biopsy of breast
Otros nombres:
Utilization of the Stereo Navigator accessory |
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Validation of timeframe
Periodo de tiempo: Baseline
|
Time from injection of the technetium Tc-99m sestamibi to identification of the appropriate needle guide hole will be reviewed to determine if and where any improvements in workflow can be made to reduce the overall procedure time for patients. |
Baseline
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Change in image of lesion
Periodo de tiempo: Baseline; Up to 6 months
|
The coordinates of the lesion of interest on the high resolution MBI image will be recorded. The guidance procedure will be considered successful if 1) the pre and post images of the lesion demonstrated one of the following: decreased in size, central or eccentric defect where sampled, or decrease in intensity, or 2) pathology results demonstrate malignancy or a specific benign concordant result. |
Baseline; Up to 6 months
|
|
Accuracy of depth estimation by difference in attenuation from opposing views
Periodo de tiempo: Baseline; Up to 6 months
|
For each patient in whom pathology confirms successful sampling of the lesion seen on high-resolution molecular breast imaging (MBI), the error in depth estimation will be calculated as the average error for each depth estimation method from all core biopsy samples. This will allow comparison of the accuracy of the 3 different depth estimation methods and potentially provide further information on the strengths and weakness of each of the three methods for depth estimation. Uniformity activity along the entire 20 mm core would indicate failure to biopsy the lesion. Any portion of increased uptake will be noted and the center of activity will be determined relative to the mid-point of the core sample. This distance will be recorded as the difference between estimated depth and true depth. |
Baseline; Up to 6 months
|
|
Accuracy of depth estimation by difference in apparent lesion size
Periodo de tiempo: Baseline; Up to 6 months
|
For each patient in whom pathology confirms successful sampling of the lesion seen on MBI, the error in depth estimation will be calculated as the average error for each depth estimation method from all core biopsy samples. This will allow comparison of the accuracy of the 3 different depth estimation methods and potentially provide further information on the strengths and weakness of each of the three methods for depth estimation. Uniformity activity along the entire 20 mm core would indicate failure to biopsy the lesion. Any portion of increased uptake will be noted and the center of activity will be determined relative to the mid-point of the core sample. This distance will be recorded as the difference between estimated depth and true depth. |
Baseline; Up to 6 months
|
|
Accuracy of depth estimation by triangulation
Periodo de tiempo: Baseline; Up to 6 months
|
For each patient in whom pathology confirms successful sampling of the lesion seen on MBI, the error in depth estimation will be calculated as the average error for each depth estimation method from all core biopsy samples. This will allow comparison of the accuracy of the 3 different depth estimation methods and potentially provide further information on the strengths and weakness of each of the three methods for depth estimation. Uniformity activity along the entire 20 mm core would indicate failure to biopsy the lesion. Any portion of increased uptake will be noted and the center of activity will be determined relative to the mid-point of the core sample. This distance will be recorded as the difference between estimated depth and true depth. |
Baseline; Up to 6 months
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Katie N. Hunt, M.D., Mayo Clinic in Rochester
Publicaciones y enlaces útiles
Publicaciones Generales
Enlaces Útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 18-011329
- 18-011329 (Otro identificador: Mayo Clinic in Rochester)
- NCI-2023-06047 (Identificador de registro: CTRP (Clinical Trial Reporting Program))
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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