Radiation Therapy (WBI Versus PBI) in Treating Women Who Have Undergone Surgery For Ductal Carcinoma In Situ or Stage I or Stage II Breast Cancer
Status: | Active, not recruiting |
---|---|
Conditions: | Breast Cancer, Cancer |
Therapuetic Areas: | Oncology |
Healthy: | No |
Age Range: | 18 - Any |
Updated: | 1/17/2019 |
Start Date: | March 2005 |
End Date: | August 2019 |
A Randomized Phase III Study of Conventional Whole Breast Irradiation (WBI) Versus Partial Breast Irradiation (PBI) for Women With Stage 0, I, or II Breast Cancer
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Giving radiation
therapy in different ways may kill any tumor cells that remain after surgery. It is not yet
known whether whole breast radiation therapy is more effective than partial breast radiation
therapy in treating breast cancer.
PURPOSE: This randomized phase III trial is studying whole breast radiation therapy to see
how well it works compared to partial breast radiation therapy in treating women who have
undergone surgery for ductal carcinoma in situ or stage I or stage II breast cancer.
therapy in different ways may kill any tumor cells that remain after surgery. It is not yet
known whether whole breast radiation therapy is more effective than partial breast radiation
therapy in treating breast cancer.
PURPOSE: This randomized phase III trial is studying whole breast radiation therapy to see
how well it works compared to partial breast radiation therapy in treating women who have
undergone surgery for ductal carcinoma in situ or stage I or stage II breast cancer.
OBJECTIVES:
Primary
- Compare local tumor control in women with ductal carcinoma in situ or stage I or II
breast cancer treated with adjuvant whole breast vs partial breast irradiation following
lumpectomy.
Secondary
- Compare overall survival, recurrence-free survival, and distant disease-free survival in
patients treated with these regimens.
- Compare the cosmetic result in patients treated with these regimens.
- Compare fatigue and treatment-related symptoms in patients treated with these regimens.
- Compare perceived convenience of care in patients treated with these regimens.
- Compare acute and late toxic effects of these regimens in these patients.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to
disease stage (ductal carcinoma in situ [DCIS] only vs invasive and node negative vs invasive
with 1-3 positive nodes), menopausal status (premenopausal vs postmenopausal), hormone
receptor status (estrogen receptor [ER]-positive and/or progesterone receptor [PR]-positive
vs ER-negative and PR-negative), intention to receive chemotherapy (yes vs no). Patients are
randomized to 1 of 2 treatment arms. (Patients who are 50 years of age and over with DCIS
regardless of hormone receptor status AND patients with invasive breast cancer meeting all of
the following criteria: ≥ 50 years of age, node-negative, and hormone-receptor positive
status will not be enrolled in study after 12/30/2006.)
- Group 1: Patients undergo whole-breast irradiation (WBI) once daily, 5 days a week, for
5-7 weeks.
- Group 2: Patients undergo partial-breast irradiation (PBI) twice daily on 5 days over a
period of 5-10 days. This may be delivered by multi-catheter brachytherapy, single-entry
intracavitary brachytherapy, or 3-D conformal radiotherapy.
Patients in both arms may receive adjuvant chemotherapy at least 2 weeks prior to initiation
of WBI OR at least 2 weeks after completion of PBI at the discretion of the treating
physician. Patients with ER-positive or PR-positive tumors may also receive hormonal therapy,
beginning 3-12 weeks after completion of adjuvant chemotherapy (or before, during, or after
completion of WBI or PBI for patients not receiving adjuvant chemotherapy) and continuing for
at least 5 years.
After completion of study treatment, patients are followed at 1 and 6 months, every 6 months
for 4.5 years, and then annually thereafter.
PROJECTED ACCRUAL: A total of 4,300 patients (2,150 per treatment arm) will be accrued for
this study within 4.6 years. Note: Accrual closed on April 16, 2013, following approval of
the Data Monitoring Committee to reduce the sample size from 4,300 to 4,214 patients.
Primary
- Compare local tumor control in women with ductal carcinoma in situ or stage I or II
breast cancer treated with adjuvant whole breast vs partial breast irradiation following
lumpectomy.
Secondary
- Compare overall survival, recurrence-free survival, and distant disease-free survival in
patients treated with these regimens.
- Compare the cosmetic result in patients treated with these regimens.
- Compare fatigue and treatment-related symptoms in patients treated with these regimens.
- Compare perceived convenience of care in patients treated with these regimens.
- Compare acute and late toxic effects of these regimens in these patients.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to
disease stage (ductal carcinoma in situ [DCIS] only vs invasive and node negative vs invasive
with 1-3 positive nodes), menopausal status (premenopausal vs postmenopausal), hormone
receptor status (estrogen receptor [ER]-positive and/or progesterone receptor [PR]-positive
vs ER-negative and PR-negative), intention to receive chemotherapy (yes vs no). Patients are
randomized to 1 of 2 treatment arms. (Patients who are 50 years of age and over with DCIS
regardless of hormone receptor status AND patients with invasive breast cancer meeting all of
the following criteria: ≥ 50 years of age, node-negative, and hormone-receptor positive
status will not be enrolled in study after 12/30/2006.)
- Group 1: Patients undergo whole-breast irradiation (WBI) once daily, 5 days a week, for
5-7 weeks.
- Group 2: Patients undergo partial-breast irradiation (PBI) twice daily on 5 days over a
period of 5-10 days. This may be delivered by multi-catheter brachytherapy, single-entry
intracavitary brachytherapy, or 3-D conformal radiotherapy.
Patients in both arms may receive adjuvant chemotherapy at least 2 weeks prior to initiation
of WBI OR at least 2 weeks after completion of PBI at the discretion of the treating
physician. Patients with ER-positive or PR-positive tumors may also receive hormonal therapy,
beginning 3-12 weeks after completion of adjuvant chemotherapy (or before, during, or after
completion of WBI or PBI for patients not receiving adjuvant chemotherapy) and continuing for
at least 5 years.
After completion of study treatment, patients are followed at 1 and 6 months, every 6 months
for 4.5 years, and then annually thereafter.
PROJECTED ACCRUAL: A total of 4,300 patients (2,150 per treatment arm) will be accrued for
this study within 4.6 years. Note: Accrual closed on April 16, 2013, following approval of
the Data Monitoring Committee to reduce the sample size from 4,300 to 4,214 patients.
DISEASE CHARACTERISTICS:
- Histologically confirmed ductal carcinoma in situ (DCIS*) or invasive* adenocarcinoma
of the breast
- Stage 0, I, or II disease
- Stage II tumors must be ≤ 3 cm
- Gross disease must be unifocal
- Microscopic multifocality allowed provided total pathological tumor size is
≤ 3 cm
- No proven multicentric carcinoma in more than 1 quadrant or separated by ≥ 4 cm
- No non-epithelial breast malignancies (e.g., sarcoma or lymphoma) NOTE: *Patients
who are 50 years of age and over with DCIS regardless of hormone receptor status
AND patients with invasive breast cancer meeting all of the following criteria: ≥
50 years of age, node-negative, and hormone-receptor positive status will not be
enrolled in study after 12/30/2006
- Prior axillary staging required for patients with invasive breast cancer, including 1
of the following:
- Sentinel node biopsy alone (if sentinel node is negative)
- Sentinel node biopsy followed by axillary dissection or sampling with ≥ 6
axillary nodes (if sentinel node is positive)
- Axillary dissection alone with ≥ 6 axillary nodes
- No more than 3 positive axillary nodes
- No axillary nodes with definite evidence of microscopic or macroscopic
extracapsular extension
- No positive non-axillary sentinel nodes (intramammary nodes are staged as
axillary nodes)
- No palpable or radiographically suspicious ipsilateral or contralateral axillary,
supraclavicular, infraclavicular, or internal mammary nodes unless there is
histologic confirmation that these nodes are negative for tumor
- Must have undergone lumpectomy
- Resected margins histologically free of tumor
- Re-excision of surgical margins allowed
- Target lumpectomy cavity clearly delineated AND target lumpectomy/whole breast
reference volume ≤ 30% based on postoperative pre-randomization CT scan
- Final surgery (i.e., lumpectomy, re-excision of margins, or axillary staging
procedure) within the past 42 days
- No suspicious microcalcifications, densities, or palpable abnormalities in the
ipsilateral or contralateral breast unless biopsied and found to be benign
- No Paget's disease of the nipple
- No history of invasive breast cancer or DCIS
- Prior lobular carcinoma in situ treated by surgery alone allowed
- No synchronous bilateral invasive or non-invasive breast cancer
- Partial breast irradiation deemed technically deliverable by radiation oncologist at a
credentialed facility
- Must have undergone a history and physical exam within the past 4 months AND a
bilateral mammogram within the past 6 months
- Hormone receptor status:
- Estrogen receptor (ER) status known
- Progesterone status known if ER analysis is negative
- Marginal or borderline results are considered positive
PATIENT CHARACTERISTICS:
Age
- 18 and over
Sex
- Female
Menopausal status
- Premenopausal or postmenopausal
Performance status
- Not specified
Life expectancy
- At least 10 years, excluding diagnosis of breast cancer
Hematopoietic
- Not specified
Hepatic
- Not specified
Renal
- Not specified
Other
- Not pregnant or nursing
- Negative pregnancy test
- Fertile patients must use effective non-hormonal contraception
- No other malignancy within the past 5 years except previously treated carcinoma in
situ of the cervix or colon, melanoma in situ, or basal cell or squamous cell skin
cancer
- Deemed to be at low risk for recurrence
- No collagen vascular disease (e.g., systemic lupus erythematosus or scleroderma),
specifically dermatomyositis with a creatine phosphokinase (CPK) level above normal,
or active skin rash
- No psychiatric or addictive disorder that would preclude study therapy
PRIOR CONCURRENT THERAPY:
Biologic therapy
- No prior biologic therapy for this malignancy
Chemotherapy
- No prior chemotherapy for this malignancy
- No concurrent chemotherapy during study radiotherapy
Endocrine therapy
- No prior hormonal therapy for this malignancy unless total duration of hormonal
therapy was no more than 28 days before randomization
- Concurrent hormonal therapy allowed provided it is not administered during
chemotherapy
- No concurrent raloxifene, tamoxifen, or other selective estrogen receptor modulating
drugs
- No concurrent hormone replacement therapy
- No concurrent Femring^®
Radiotherapy
- No prior radiotherapy for this malignancy
- No prior breast or thoracic radiotherapy
- No concurrent brachytherapy boosts
- No concurrent intensity modulated radiotherapy
- No concurrent regional nodal irradiation
Surgery
- See Disease Characteristics
- No prior breast implants
- Patients who have had implants removed are eligible
Other
- No other concurrent anticancer therapy
We found this trial at
376
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