Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Breast Neoplasms

Breast Diseases

Skin Diseases

A Contura balloon catheter is placed in the lumpectomy cavity. Later that morning, accelerated partial irradiation begins.

Radiation therapy is delivered to a total dose of 34 Gy in 10 fractions bid over 5-7 days. Each day, the high dose rate iridium-192 brachytherapy treatments are separated by 6 hours. Each radiation treatment takes 15-30 minutes.

Contura catheter

Richard B Wilder, MD

Kenneth M Tokita, MD

The purpose of this study is to determine if a Contura catheter can avoid a radiation "hot spot" in the skin and improve tissue-balloon conformance in early-stage breast cancer patients undergoing accelerated partial breast irradiation.

In approximately 20% of patients who are considered for accelerated partial breast irradiation (APBI), the balloon-to-skin distance ranges from 3-6 mm. The Contura applicator has 5 source lumens. In contrast, the MammoSite catheter has a single source lumen. The ability to choose from multiple source lumens with the Contura catheter allows one to avoid a radiation "hot spot" in the skin in cases where the balloon-to-skin spacing is only 3-6 mm.

Another limitation of the MammoSite catheter is that one cannot improve on the suboptimal conformance of the balloon with the surrounding breast tissue. An air/fluid pocket next to the balloon can push breast tissue at greatest risk of harboring residual disease away from the radioactive source. With APBI, the planning target volume for plan evaluation (PTV_EVAL) is defined as the breast tissue volume bounded by uniform expansion of the balloon radius in all dimensions by 10 mm less the balloon volume. PTV_EVAL is limited to 5 mm from the skin surface and by the posterior breast tissue extent (chest wall and pectoralis muscles are excluded). The volume of an air/fluid pocket is usually 4.8% ± 1.1% (mean ± standard error) of PTV_EVAL. The Contura applicator has a vacuum lumen with 2 openings adjacent to the balloon that allow for air/fluid removal. By using the vacuum lumen on a Contura applicator, one can typically decrease the size of an air/fluid pocket by about one third. In approximately 90% of Contura patients, the volume of an air/fluid pocket around the balloon can be reduced to less than or equal to 3.0% of PTV_EVAL. In contrast, the volume of an air/fluid pocket around the balloon is less than or equal to 3.0% of PTV_EVAL in only about half of MammoSite patients. Since this study addresses intermediate-risk patients, it is particularly important that the size of an air/fluid pocket be minimized with a Contura applicator.

SenoRx, Inc. (Aliso Viejo, CA) is currently conducting a registry study of the Contura MLB applicator in the "low-risk" patient population. This "intermediate-risk" study is complimentary to the low-risk registry study. There is no overlap in patient eligibility. Intermediate-risk patients meet any of the following criteria:

1. Age 18-49 years, or
2. Estrogen receptor-negative and progesterone receptor-negative breast cancer, or
3. 1-3 involved axillary lymph nodes

Use of the Contura™ Catheter in Intermediate-Risk, Pathological Stage 0, I, or II (Up to 3.0 cm) Breast Cancer Patients

Registry Study of the Contura™ Multi-Lumen Balloon (MLB) Applicator for Accelerated Partial Breast Irradiation in Intermediate-Risk, Pathological Stage 0, I, or II (Up to 3.0 cm) Breast Cancer Patients

SenoRx, Inc.

Cancer Center of Irvine

Accelerated, hypofractionated partial breast radiotherapy.

3 dose schemes followed for 6 months each.

APBI (Dose Escalation)

Contura MLB Breast Brachytherapy Catheter

Atif Khan, MD

Douglas W. Arthur, MD

Mihai Ghilezan, MD

To determine local disease control (recurrence) with shorter course of APBI delivered with a breast brachytherapy applicator.

Safety Study for Short-course Accelerated, Hypofractionated Partial Breast Radiotherapy (APBI) in Women With Early Stage Breast Cancer Using the Contura MLB

Safety and Feasibility of Short-Course, Accelerated, Hypofractionated Partial Breast Radiotherapy in Women With Early Stage Breast Cancer Using the Contura MLB Breast Brachytherapy Catheter: A Phase II Trial

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Use of the Contura™ Catheter in Intermediate-Risk, Pathological Stage 0, I, or II (Up to 3.0 cm) Breast Cancer Patients	NCT00882089	Breast Cancer	Contura cathete...	18 Years -	Cancer Center of Irvine
Safety Study for Short-course Accelerated, Hypofractionated Partial Breast Radiotherapy (APBI) in Women With Early Stage Breast Cancer Using the Contura MLB	NCT01072838	Breast Cancer	APBI (Dose Esca... Contura MLB Bre...	50 Years -	SenoRx, Inc.
Use of the Contura™ Catheter in Intermediate-Risk, Pathological Stage 0, I, or II (Up to 3.0 cm) Breast Cancer Patients	NCT00882089	Breast Cancer	Contura cathete...	18 Years -	Cancer Center of Irvine
Safety Study for Short-course Accelerated, Hypofractionated Partial Breast Radiotherapy (APBI) in Women With Early Stage Breast Cancer Using the Contura MLB	NCT01072838	Breast Cancer	APBI (Dose Esca... Contura MLB Bre...	50 Years -	SenoRx, Inc.
Safety Study for Short-course Accelerated, Hypofractionated Partial Breast Radiotherapy (APBI) in Women With Early Stage Breast Cancer Using the Contura MLB	NCT01072838	Breast Cancer	APBI (Dose Esca... Contura MLB Bre...	50 Years -	SenoRx, Inc.

Spots Global Cancer Trial Database for contura

Every month we try and update this database with for contura cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Spots Global Cancer Trial Database for contura

Every month we try and update this database with for contura cancer trials from around the world to help patients and their families find trials that might be right for them. We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Every month we try and update this database with for contura cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.