MEET ALLISON, A PATIENT WITH
Triple-negative mBC with visceral metastases
49-year-old mother of 3; homemaker
Socially and physically active; ECOG PS: 0
Palpable mass in right breast
Past medical history – controlled hypertension
Family history – no family history of cancer
ER=estrogen receptor; PR=progesterone receptor; HER2/neu=human epidermal growth factor receptor 2; BRCA=breast cancer gene; PD-L1=programmed death-ligand 1.
Received dose-dense AC followed by paclitaxel and right modified radical mastectomy with lymph node dissection
Achieved pathological CR
Diagnosis of metastatic disease
2 years after mastectomy, Allison presented with a chronic cough
Multiple skin lesions discovered on chest wall and multiple lung metastases
Biopsy confirmed triple-negative mBC
mBC=metastatic breast cancer; ECOG PS=Eastern Cooperative Oncology Group performance status; AC=adriamycin + cyclophosphamide; CR=complete response.
*This case study presents a hypothetical patient. HALAVEN® (eribulin mesylate) Injection (0.5 mg per mL) is not appropriate for all patients.
This information should not substitute for the independent medical judgment of the treating physician.
Allison's mBC treatment history
FIRST-LINE IO + CHEMOTHERAPY: Combination atezolizumab + nab-paclitaxel
Progressed during fourth cycle of treatment
Additional lung metastases were found
SECOND-LINE CHEMOTHERAPY: Combination carboplatin + gemcitabine
Improvement in lung metastases after 3 cycles
Progressed after 6 cycles with bilateral skin lesions and new liver metastases; lung lesions were stable
ALLISON'S CLINICAL FACTORS INCLUDE:
Symptomatic visceral disease
Liver and lung metastases
2 prior chemotherapies for mBC
mBC=metastatic breast cancer: IO=immunotherapy.
HALAVEN® may be an appropriate treatment for Allison
Best viewed on flat surface in landscape view.
EMBRACE=Eisai Metastatic Breast Cancer Study Assessing Physician's Choice versus E7389 (Eribulin); ECOG PS=Eastern Cooperative Oncology Group performance status; mBC=metastatic breast cancer.
Metastatic Breast Cancer
HALAVEN (eribulin mesylate) Injection is indicated for the treatment of patients with metastatic breast cancer (mBC) who have previously received at least 2 chemotherapeutic regimens for the treatment of metastatic disease. Prior therapy should have included an anthracycline and a taxane in either the adjuvant or metastatic setting.
HALAVEN is indicated for the treatment of patients with unresectable or metastatic liposarcoma who have received a prior anthracycline-containing regimen.
Important Safety Information
Warnings and Precautions
Neutropenia: Severe neutropenia (ANC <500/mm3) lasting >1 week occurred in 12% of patients with mBC and liposarcoma or leiomyosarcoma. Febrile neutropenia occurred in 5% of patients with mBC and 2 patients (0.4%) died from complications. Febrile neutropenia occurred in 0.9% of patients with liposarcoma or leiomyosarcoma, and fatal neutropenic sepsis occurred in 0.9% of patients. Patients with mBC with elevated liver enzymes >3 × ULN and bilirubin >1.5 × ULN experienced a higher incidence of Grade 4 neutropenia and febrile neutropenia than patients with normal levels. Monitor complete blood cell counts prior to each dose, and increase the frequency of monitoring in patients who develop Grade 3 or 4 cytopenias. Delay administration and reduce subsequent doses in patients who experience febrile neutropenia or Grade 4 neutropenia lasting >7 days.
Peripheral Neuropathy: Grade 3 peripheral neuropathy occurred in 8% of patients with mBC (Grade 4=0.4%) and 22% developed a new or worsening neuropathy that had not recovered within a median follow-up duration of 269 days (range 25-662 days). Neuropathy lasting >1 year occurred in 5% of patients with mBC. Grade 3 peripheral neuropathy occurred in 3.1% of patients with liposarcoma and leiomyosarcoma receiving HALAVEN and neuropathy lasting more than 60 days occurred in 58% (38/65) of patients who had neuropathy at the last treatment visit. Patients should be monitored for signs of peripheral motor and sensory neuropathy. Withhold HALAVEN in patients who experience Grade 3 or 4 peripheral neuropathy until resolution to Grade 2 or less.
Embryo-Fetal Toxicity: HALAVEN can cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during treatment with HALAVEN and for at least 2 weeks following the final dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with HALAVEN and for 3.5 months following the final dose.
QT Prolongation: Monitor for prolonged QT intervals in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, and electrolyte abnormalities. Correct hypokalemia or hypomagnesemia prior to initiating HALAVEN and monitor these electrolytes periodically during therapy. Avoid in patients with congenital long QT syndrome.
In patients with mBC receiving HALAVEN, the most common adverse reactions (≥25%) were neutropenia (82%), anemia (58%), asthenia/fatigue (54%), alopecia (45%), peripheral neuropathy (35%), nausea (35%), and constipation (25%). Febrile neutropenia (4%) and neutropenia (2%) were the most common serious adverse reactions. The most common adverse reaction resulting in discontinuation was peripheral neuropathy (5%).
In patients with liposarcoma and leiomyosarcoma receiving HALAVEN, the most common adverse reactions (≥25%) reported in patients receiving HALAVEN were fatigue (62%), nausea (41%), alopecia (35%), constipation (32%), peripheral neuropathy (29%), abdominal pain (29%), and pyrexia (28%). The most common (≥5%) Grade 3-4 laboratory abnormalities reported in patients receiving HALAVEN were neutropenia (32%), hypokalemia (5.4%), and hypocalcemia (5%). Neutropenia (4.9%) and pyrexia (4.5%) were the most common serious adverse reactions. The most common adverse reactions resulting in discontinuation were fatigue and thrombocytopenia (0.9% each).
Use in Specific Populations
Lactation: Because of the potential for serious adverse reactions in breastfed infants from eribulin mesylate, advise women not to breastfeed during treatment with HALAVEN and for 2 weeks after the final dose.
Hepatic and Renal Impairment: A reduction in starting dose is recommended for patients with mild or moderate hepatic impairment and/or moderate or severe renal impairment.
Reference: 1. Data on file, Eisai Inc.