PRIMARY OBJECTIVE:
I. Determine excellent clinical response rates (pathologic complete response [pCR]/residual
cancer burden [RCB]-0 or minimal residual disease [RCB-I]) in patients with
anthracycline-based chemotherapy insensitive, localized triple-negative breast cancer (TNBC)
who receive 4 cycles of pegylated liposomal doxorubicin hydrochloride, bevacizumab, and
everolimus (DAE) following anthracycline-based chemotherapy in the neoadjuvant setting.
SECONDARY OBJECTIVES:
I. Determine response rate after 4 cycles of DAE using radiographic imaging. II. Determine
toxicity associated 4 cycles of DAE in the neoadjuvant setting. III. Pathologic response
rates to 4 cycles of DAE in mesenchymal tumors versus (vs.) non-mesenchymal tumors.
V. Compare pathologic response rates in mesenchymal tumors to 4 cycles of DAE vs. 12 weeks of
weekly paclitaxel (using data collected from standard of care treatment).
EXPLORATORY OBJECTIVES:
I. Determine the correlation between vimentin expression by immunohistochemistry (IHC) and
the presence of mesenchymal gene signatures at the time of initial tumor biopsy prior to
neoadjuvant chemotherapy (NACT).
II. Determine the correlation between mutations in PIK3CA, PTEN or NF2 or PTEN loss by IHC
and the presence of mesenchymal gene signatures at the time of initial tumor biopsy prior to
NACT.
III. Determine rates of pCR in patients with mesenchymal tumors identified by gene signatures
and compare to pCR rates in non-mesenchymal tumors.
IV. Correlate pathologic response with degree of vimentin expression as measured by IHC.
V. Determine rates of pCR in patients whose tumors contain mutations in PIK3CA, PTEN or NF2
or PTEN loss by IHC and compare to pCR rates in patients whose tumors lacks mutations in
these genes.
OUTLINE:
Patients receive pegylated liposomal doxorubicin hydrochloride intravenously (IV) over about
3 hours on day 1, bevacizumab IV over 90 minutes on day 1, and everolimus orally (PO) once
daily (QD) on days 1-21. Treatment repeats every 21 days for up to 4 cycles in the absence of
disease progression or unacceptable toxicity. Patients will not receive bevacizumab during
cycle 4 of therapy. Patients then undergo surgery.
After completion of study treatment, patients are followed up within 30 days of surgery.
Inclusion Criteria:
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Confirmed invasive triple-negative breast cancer defined as estrogen receptor (ER) <
10%; progesterone receptor (PR) < 10% by immunohistochemistry (IHC) and human
epidermal growth factor receptor 2 (HER2) 0-1+ (by IHC), or 2+ (fluorescence in situ
hybridization [FISH] < 2, gene copy number < 4)
- Primary tumor sample collected before NACT started and
- Undergone molecular testing for integral biomarkers including immunohistochemical
staining; the tumor must have evidence of mesenchymal differentiation defined as
metaplastic breast cancer, or vimentin >= 50% by IHC
- Received at least one dose of an anthracycline-based NACT; patients are eligible if
therapy was discontinued due to disease progression or therapy intolerance
- At least 1.0 cm of measurable residual disease after neoadjuvant anthracycline-based
chemotherapy
- Baseline multi-gated acquisition (MUGA) scan or echocardiogram showing left
ventricular ejection fraction (LVEF) >= 50% at least 6 weeks prior to initiation of
NACT
- Absolute neutrophil count (ANC) >= 1.5 x 10^9/L
- Platelets >= 100 x 10^9/L
- Hemoglobin (Hb) > 9 g/dL
- Total serum bilirubin =< 2.0 mg/dL
- Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 2.5 x upper
limit of normal (ULN) (=< 5 x ULN in patients with liver metastases)
- International normalized ratio (INR) =< 2
- Serum creatinine =< 1.5 x ULN
- Fasting serum cholesterol =< 300 mg/dL OR =< 7.75 mmol/L, AND fasting triglycerides =<
2.5 x ULN; NOTE: In case one or both of these thresholds are exceeded, the patient can
only be included after initiation of appropriate lipid lowering medication
- Signed informed consent obtained prior to any screening procedures
Exclusion Criteria:
- Pregnant or lactating woman
- Presence of metastatic disease
- Prior therapy with bevacizumab, liposomal doxorubicin, or everolimus
- Prior radiation therapy of the primary breast carcinoma or axillary lymph nodes
- Patients who have a history of another primary malignancy, with the exceptions of:
non-melanoma skin cancer, and carcinoma in situ of the cervix, uterus, or breast from
which the patient has been disease free for =< 3 years
- Prior cumulative dose of doxorubicin of greater than 360 mg/m^2 or epirubicin of
greater than 640 mg/m^2
- Any serious medical illness, other than treated by this study, which would limit
survival to less than 1 month or psychiatric illness which would limit informed
consent
- Patients with history of serious cardiac events defined as: New York Heart Association
class 3 or 4 heart failure, history of myocardial infarction, unstable angina, or
cardiovascular accident (CVA) within 6 months of protocol registration; history of PR
prolongation or atrioventricular (AV) block
- Known intolerance or hypersensitivity to rapamycin analogs (e.g. sirolimus,
temsirolimus)
- Known impairment of gastrointestinal (GI) function or GI disease that may
significantly alter the absorption of oral everolimus
- Uncontrolled diabetes mellitus as defined by hemoglobin A1c (HbA1c) > 8% despite
adequate therapy; patients with a known history of impaired fasting glucose or
diabetes mellitus (DM) may be included, however blood glucose and antidiabetic
treatment must be monitored closely throughout the trial and adjusted as necessary
- Patients who have any severe and/or uncontrolled medical conditions such as: a.
serious uncontrolled cardiac arrhythmia, or any other clinically significant cardiac
disease b. active (acute or chronic) or uncontrolled severe infection, liver disease
such as cirrhosis, decompensated liver disease, and active and chronic hepatitis (i.e.
quantifiable hepatitis B virus [HBV]-deoxyribonucleic acid [DNA] and/or positive
surface antigen of the hepatitis B virus [HBsAg], quantifiable hepatitis C virus
[HCV]-ribonucleic acid [RNA]), c. known severely impaired lung function (spirometry
and Diffusing capacity of the lungs for carbon monoxide [DLCO] 50% or less of normal
and oxygen (O2) saturation 88% or less at rest on room air), d. active, bleeding
diathesis; e. Moderate or severe hepatic impairment (Child-Pugh B or C)
- Chronic treatment with corticosteroids or other immunosuppressive agents; topical or
inhaled corticosteroids are allowed
- Known history of human immunodeficiency virus (HIV) seropositivity
- Patients who have received live attenuated vaccines within 1 week of start of
everolimus and during the study; patient should also avoid close contact with others
who have received live attenuated vaccines; examples of live attenuated vaccines
include intranasal influenza, measles, mumps, rubella, oral polio, bacillus
Calmette-Guerin (BCG), yellow fever, varicella and TY21a typhoid vaccines
- Patients with a history of non-compliance to medical regimens or who are considered
potentially unreliable or will not be able to complete the entire study
- Patients who are currently part of or have participated in any clinical investigation
with an investigational drug within 1 month prior to dosing
- Women of child-bearing potential (WOCBP), defined as all women physiologically capable
of becoming pregnant, must use highly effective methods of contraception during the
study and 8 weeks after; highly effective contraception methods include combination of
any two of the following:
- Placement of an intrauterine device (IUD) or intrauterine system (IUS);
- Barrier methods of contraception: condom or occlusive cap (diaphragm or
cervical/vault caps) with spermicidal foam/gel/film/cream/vaginal suppository;
- Total abstinence or;
- Male/female sterilization.
- Note: Women are considered post-menopausal and not of child-bearing potential if
they have had 12 months of natural (spontaneous) amenorrhea with an appropriate
clinical profile (e.g. age appropriate, history of vasomotor symptoms) or have
had surgical bilateral oophorectomy (with or without hysterectomy) or tubal
ligation at least six weeks prior to treatment; in the case of oophorectomy
alone, only when the reproductive status of the woman has been confirmed by
follow up hormone level assessment is she considered not of child-bearing
potential
- Male patients whose sexual partner(s) are WOCBP who are not willing to use adequate
contraception, during the study and for 8 weeks after the end of treatment
