Abstract P3-06-31: Etirinotecan pegol in patients with metastatic breast cancer (mBC): Modeling CA27.29 response and its correlation with tumor response

Author(s):  
YL Chia ◽  
U Hoch ◽  
A Hannah ◽  
MA Eldon
2002 ◽  
Vol 20 (17) ◽  
pp. 3665-3673 ◽  
Author(s):  
Shanu Modi ◽  
Katherine S. Panageas ◽  
Elaine T. Duck ◽  
Ariadne Bach ◽  
Nancy Weinstock ◽  
...  

PURPOSE: To prospectively evaluate the association between tumor response, change in quality of life (QoL), and hospital expenditures in patients with metastatic breast cancer (MBC) receiving single-agent paclitaxel. PATIENTS AND METHODS: Eligible patients had bidimensionally measurable MBC and any number of previous therapies, excluding taxane chemotherapy. Paclitaxel was administered by various different infusion schedules. QoL measures were evaluated for each patient at baseline and serially using the Memorial Symptom Assessment Scale (MSAS)-Global Distress Index (GDI) and Functional Assessment of Cancer Therapy–Breast (FACT-B) instruments. Patients were assessed for early (first 6 weeks) and ever changes in QoL parameters. Charges were monitored through the hospital’s centralized computer billing system and converted to cost ratios for the analysis. Correlations between response and improvement in QoL were assessed by Fisher’s exact test statistic. Associations between improvements in QoL with cost ratios were assessed by logistic regression and likewise between response and cost ratios. RESULTS: Of the 59 patients treated, 50 had sufficient data for comparative analyses. The overall response rate was 24% (all partial responses). Minor responses were observed in 17% of patients, 25% had stable disease, and 29% had progression. Responding patients had significant improvement in QoL as assessed by MSAS-GDI (P = .004) and FACT-B (P = .028). The mean total cost/month ratios for patients experiencing improved GDI QoL scores was 1.31 versus 1.56 for those without QoL benefit (P = .52) and 1.05 versus 1.76 for responders versus nonresponders, respectively (P = .07). CONCLUSION: Patients with evidence of tumor response on paclitaxel had a QoL benefit not observed in nonresponders, and this response was associated with a trend for lower overall costs.


2021 ◽  
Vol 6 (2) ◽  
pp. 37-44
Author(s):  
Bindu SM ◽  
PL Rema ◽  
Praveen Jacob Ninan

Introduction: Breast cancer is the most common cancer, majority of patients present in advanced stage and 30% develop distant metastasis. Metastatic Breast Cancer (MBC) is not curable and treatment aims at prolongation of life with good palliation. There is no standard treatment, though the usual first and second lines of chemotherapy include anthracyclines and taxanes. The third line chemo drugs available are gemcitabine, capecitabine, vinorelbine and eribulinmesylate Materials and Methods: This is a retrospective study of MBC patients pretreated with anthracyclines and taxanes and then received 4 cycles of eribulin during the period March 2015-2017 in Medical College, Alappuzha and aims at studying the tumor response and drug toxicities. The tumor response is studied using CR-complete response, PR- partial response, PD-progressive disease and SD-stable disease. Results: There were a total of 18 patients, majority of whom were below 50 years. ECOG performance status of 0-1 was found in 83.3% and 77.8% were receptor positive. No patient had CR, 66.7% of patients had PR, 22.2% had PD and 11.1% had SD. 61.1% of patients who had a PR had good performance status.55.6% of patients who were ERPR positive had a PR and 44.4% patients who were Her2neu positive had a PR. Most common toxicities detected were alopecia (83.3%), neutropenia (72.2%), fatigue (72.2%) and neurotoxicity (55.6%). Conclusion: Eribulin mesylate is a drug having good response with tolerable toxicities and can be considered in our population. Keywords: Metastatic breast cancer, eribulin mesylate, capecitabine.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 1097-1097
Author(s):  
Adriana Aguilar ◽  
Josiane Lafleur ◽  
Susie Brousse ◽  
Cristiano Ferrario ◽  
Graham McLennan ◽  
...  

1097 Background: The clinical management of metastatic breast cancer depends on the measurement of tumor response to successive drugs by serial imaging and changes in blood tumor markers, which remain the standard of care despite poor sensitivity and specificity. Highly sensitive and specific cfDNA secreted from the tumor can detect the changes in tumor-specific aberrations that have been shown to be associated with patient response in the metastatic setting. However, most approaches require prior sequencing of the tumor to target specific known mutations. Methods: Using low coverage genomic sequencing, a genomic instability number (GIN) was measured in cfDNA based on the detection of genome-wide tumor-specific DNA copy number alterations for 27 patients with metastatic breast cancer. The GIN value and its variation from baseline before treatment, as well as within 10 days and 3 weeks after start of therapy were compared with tumor response, progression free survival (PFS) and overall survival (OS) of the patients. Patients were followed for a median of 22 months and we used a previously published GIN threshold at 170 for high vs low GIN values. Sequencing was performed blinded to the clinical results. Results: Baseline GIN values were not associated with tumor response at 3or 6 months, but showed a trend towards lower OS with higher GIN (p = 0.12). GIN values fell by an average of 28% in responders (stable disease or response) and 23% in those with progression (p = 0.85), but remained lower at 3 weeks only in the responders. High GIN values within 10 days and 3 weeks were associated with markedly worse OS (p = 0.014 and p = 0.009 respectively) and those at 3 weeks with worse PFS (p = 0.017). Hence the median survival of patients with high GIN at 10 days or 3 weeks was 12 months vs not reached for those with low GIN. The percentage drop of GIN at 10 days but not at 3 weeks was significantly associated with PFS (p = 0.016). Conclusions: These results demonstrate that GIN values of cfDNA measured at early on-treatment time points can predict PFS and OS with a high degree of accuracy. These findings deserve further study in a larger cohort but hold the promise of early prediction of clinical outcomes in a tumor-independent genome-wide approach.


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