Description:
This study will prospectively evaluate the technical feasibility, acute toxicity, late
effects and oncologic outcomes of CyberKnife Stereotactic Accelerated Partial Breast
Irradiation (CK-SAPBI) in early stage breast cancer. It will evaluate quality of life (QOL)
issues as they relate to treatment-related side effects and cosmetic results.
Title
- Brief Title: CyberKnife Stereotactic Accelerated Partial Breast Irradiation (SAPBI)
- Official Title: A Pilot Study of Stereotactic Accelerated Partial Breast Irradiation (SAPBI) for Post-Menopausal Women (>50 y/o) With Ductal Carcinoma in Situ (DCIS) or Early Stage Breast Cancer
Clinical Trial IDs
- ORG STUDY ID:
CRC012015-02
- NCT ID:
NCT02365714
Conditions
- Breast Cancer
- DCIS
- Invasive Ductal Carcinoma
Purpose
This study will prospectively evaluate the technical feasibility, acute toxicity, late
effects and oncologic outcomes of CyberKnife Stereotactic Accelerated Partial Breast
Irradiation (CK-SAPBI) in early stage breast cancer. It will evaluate quality of life (QOL)
issues as they relate to treatment-related side effects and cosmetic results.
Detailed Description
This study will determine the feasibility, acute and late toxicity as well as oncologic
outcomes following CK-SAPBI.
Trial Arms
Name | Type | Description | Interventions |
---|
Treatment-Radiation | Other | CyberKnife (CK) Stereotactic Accelerated Partial Breast Irradiation. Adjuvant radiation therapy delivered to the region around the lumpectomy cavity. Patients will receive 30 Gy in 5 fractions over 5-14 days. | |
Eligibility Criteria
Inclusion Criteria:
- -Newly diagnosed Stage 0 or I breast cancer.
- On histological examination, the tumor must be DCIS or invasive non-lobular carcinoma
of the breast
- Surgical treatment of the breast must have been wide excision, lumpectomy or partial
mastectomy
- Age 50 years or greater
- ER positive: (≥1% of breast tumor cells express ER in their nuclei)
- PR (progesterone receptor) positive: (≥ 1% of breast tumor cells express PR in their
nuclei)
- Her2 negative (IHC 0-1+; for IHC 2+, FISH (fluorescence in situ hybridization) must be
non-amplified)
- Subjects with invasive tumors should undergo axillary sentinel lymph node evaluation
or axillary lymph node dissection.
- Negative inked surgical margins of excision or re-excision, clear of invasive tumor
(no cells on ink) and DCIS by at least 1 mm
- Negative post-excision or post-reexcision mammography if cancer presented with
malignancy-associated microcalcifications with no remaining suspicious calcifications
in the breast before radiotherapy. Alternatively, a specimen radiograph can be
obtained showing all the suspicious calcifications.
- No involved axillary lymph nodes, N0(i+) allowed
- Enrollment and the plan to initiate of CyberKnife therapy within 12 weeks of the last
breast cancer surgery.
- Target lumpectomy cavity/whole breast reference volume must be <30% based on treatment
planning CT
- Signed study-specific informed consent form
Exclusion Criteria:
- -Patients with invasive lobular carcinoma or nonepithelial breast malignancies such as
sarcoma or lymphoma.
- Patients with tumors greater than 2 cm
- Patients with surgical margins which cannot be microscopically assessed or not cleared
by at least 2mm at pathological evaluation.
- Patients with multicentric carcinoma or with other clinically or radiographically
suspicious areas in the ipsilateral breast unless confirmed to be negative for
malignancy by biopsy. Breast MRI will be recommended to exclude multicentric disease
and additional suspicious areas will require biopsy to exclude malignancy.
- Patient with lymphovascular space invasion (LVSI).
- Patients with involved axillary nodes.
- Patients with collagen vascular diseases.
- Patient with known deleterious BRCA1/2 mutations or known mutations in other high
penetrance genes (TP53, STK11, PTEN-phosphatase and tensin homolog, CDH1)
- Patients with prior ipsilateral breast irradiation.
- Patients with prior ipsilateral thoracic irradiation.
- Patients with Paget's disease of the nipple.
- Patients with diffuse suspicious microcalcifications.
- Patients with suspicious microcalcifications remaining on the post-excision mammogram.
- Patients receiving (neo)adjuvant systemic therapy other than hormonal therapy
- Patients with oncoplastic reconstruction and absence of surgical clips
Maximum Eligible Age: | 99 Years |
Minimum Eligible Age: | 50 Years |
Eligible Gender: | Female |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | The Primary Endpoint for This Study is the Percentage of Enrolled Subjects in Whom CyberKnife SAPBI PBI is Technically Feasible to Deliver and Complete Treatment |
Time Frame: | Enrollment to 24 months |
Safety Issue: | |
Description: | Only one of two patients were able to undergo CyberKnife SAPBI. We are measuring the percentage of enrolled subjects in whom CyberKnife SAPBI PBI is technically feasible to deliver and complete treatment |
Secondary Outcome Measures
Measure: | Ipsilateral Breast Recurrence |
Time Frame: | 1 month post radiation treatment through 5 years post treatment |
Safety Issue: | |
Description: | No patients have recurred to date. |
Details
Phase: | Phase 1/Phase 2 |
Primary Purpose: | Interventional |
Overall Status: | Terminated |
Lead Sponsor: | Georgetown University |
Last Updated
April 13, 2018