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Tumor Treating Field Therapy in Combination with Bevacizumab for the Treatment of Recurrent Glioblastoma
Published on: October 27, 2014
Oncology nursing in a new era: optimizing treatment with bevacizumab
1Dayton Physicians, LLC, Hematology and Oncology, Ohio, USA. joycemrn@sbcglobal.net
Abstract:
Overexpression of vascular endothelial growth factor (VEGF) by tumor cells promotes angiogenesis, which correlates with progressive tumor growth and poor outcomes in many types of cancer. Bevacizumab inhibits VEGF to promote regression of tumor vessels by limiting blood supply and tumor growth, enhancing delivery of chemotherapy, and inhibiting formation of new vessels. Combined with chemotherapy, bevacizumab prolongs progression-free and overall survival over chemotherapy alone in patients with metastatic carcinoma of the colon and rectum; unresectable, locally advanced, recurrent or metastatic non-squamous, non-small cell lung cancer (NSCLC); and metastatic HER2-negative breast cancers (mBC). Side effects, including hypertension, proteinuria, bleeding, arterial thrombotic events, and impaired wound healing, can be clinically significant, particularly in patients with risk factors. To optimize patient outcomes, nurses should understand bevacizumab's role in cancer therapy, recognize symptoms of toxicity, and manage its side effects. This article describes the rationale for bevacizumab in the treatment of metastatic colorectal cancer, NSCLC, and mBC and discusses patient selection, treatment duration, and side-effect management to support the role of oncology nurses in caring for, educating, and enhancing treatment adherence among patients with cancer receiving bevacizumab. Two case studies are presented as examples of the complex scenarios nurses may encounter regarding these issues.
Insights
Bevacizumab, an inhibitor of vascular endothelial growth factor (VEGF), improves survival in metastatic colorectal cancer, non-small cell lung cancer, and breast cancer. Oncology nurses play a vital role in managing its side effects and optimizing patient care.
Area of Science:
- Oncology
- Pharmacology
- Cancer Biology
Background:
- Vascular Endothelial Growth Factor (VEGF) overexpression drives tumor angiogenesis and progression.
- Bevacizumab targets VEGF, inhibiting tumor growth and enhancing chemotherapy efficacy.
- VEGF inhibition is crucial in managing various metastatic cancers.
Purpose of the Study:
- To review the role of bevacizumab in treating metastatic colorectal cancer, non-small cell lung cancer (NSCLC), and metastatic breast cancer (mBC).
- To outline strategies for patient selection, treatment duration, and side effect management.
- To support oncology nurses in patient education and adherence to bevacizumab therapy.
Main Methods:
- Literature review on bevacizumab's mechanism of action, clinical efficacy, and safety profile.
- Analysis of clinical trial data for metastatic colorectal cancer, NSCLC, and mBC.
- Discussion of nursing implications for managing bevacizumab therapy and its toxicities.
Main Results:
- Bevacizumab combined with chemotherapy improves progression-free and overall survival in specific metastatic cancers.
- Key side effects include hypertension, proteinuria, bleeding, and thrombotic events.
- Effective management of side effects is critical for patient safety and treatment adherence.
Conclusions:
- Bevacizumab is an effective anti-angiogenic agent for select metastatic cancers.
- Oncology nurses require specialized knowledge to manage bevacizumab therapy and its associated toxicities.
- Optimizing patient outcomes necessitates a comprehensive approach to bevacizumab treatment and side effect management.
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