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Can We Know What to Do When DCIS Is Diagnosed?It is ironic that while huge strides have been made in the treatment of invasive breast carcinoma, resulting in breast conservation for many women, the most appropriate treatment of noninvasive breast carcinoma remains a topic of hot debate.
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Impact of UFT on Tumoral TS and DPD Levels in Colorectal CancerThis was an open lable, pilot translational clinical pharmacology study of a brief (7 day) course of UFT, 300 mg/m²/day, in combination with leucovorin, 90 mg/day, in six patients with newly diagnosed advanced colorectal cancer.
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Understanding Racial Disparities in Cancer CareWith regard to cancer management, minority populations do not fare as well as the majority in the US health-care system. There is clear evidence of an increased incidence of cancer in minority populations, in many cases accompanied by reduced survival. Several factors appear to contribute to these differences, and the biomedical community has begun to focus on definining the scope of the problem and possible solutions. This review will address specific areas of disparity in cancer care, including prevention, diagnosis, treatment, and outcomes, and will consider steps toward resolving these issues.
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Commentary (Grem)-Cetuximab-Associated Infusion Reactions: Pathology and ManagementCetuximab (Erbitux), a chimeric antiepidermal growth factor receptor monoclonal antibody currently used to treat metastatic colorectal cancer, is in clinical development for several other solid tumors. Although cutaneous manifestations are the most common toxicities associated with cetuximab, they are rarely life-threatening. Cetuximab-related infusion reactions are less common, but they may become severe and cause fatal outcomes if not managed appropriately. Little about the specific etiology of these events is known; however, an overview of infusion reactions observed with other compounds may shed some light and help characterize cetuximab-related reactions. For physicians administering cetuximab, familiarity with acute reaction treatment protocols and preparedness to identify and manage symptoms promptly and effectively are most important to minimize potential risks.
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Monoclonal Antibodies in Colorectal Cancer: What We KnowMonoclonal antibodies to the epidermal growth factor receptor (EGFR) are among the promising novel targeted therapies being explored in colorectal cancer. Two such agents that inhibit EGFR signaling by interfering with ligand-binding are cetuximab (Erbitux) and panitumumab (Vectibix). This review will address the use of cetuximab and panitumumab in chemotherapy-refractory colorectal cancer as well as in front-line therapy for the disease, consider predictors of response and resistance, and outline comparisons between these agents.
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Novel Therapies in Mantle Cell Lymphoma: A Pathway to Chemotherapy-Free StrategiesThis review will cover innovative therapeutic approaches in relapsed or refractory MCL, many of which have the potential to alter treatment paradigms toward the development of strategies that do not involve conventional chemotherapy agents.
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Roles of Advanced Practice Nurses in OncologyThere is no doubt that managed care is changing health care and the practice environment of all health-care providers. As Baird states, “The economics of health care will probably exert a greater influence on the future practice of nursing than any other single factor.”[1]
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Impact of UFT on Tumoral TS and DPD Levels in Colorectal CancerThis was an open lable, pilot translational clinical pharmacology study of a brief (7 day) course of UFT, 300 mg/m²/day, in combination with leucovorin, 90 mg/day, in six patients with newly diagnosed advanced colorectal cancer.
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Neoadjuvant Therapy for Early-Stage Breast Cancer: Current Practice, Controversies, and Future DirectionsIn this review, we will discuss multidisciplinary considerations in treating patients with neoadjuvant therapy and highlight areas of controversy and ongoing research.
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Melanoma Vaccines: What We Know So FarVaccines are a promising but still experimental treatment for melanoma.They are intended to stimulate immune responses against melanomaand by so doing, increase resistance against and slow the progressionof this cancer. Key requirements for vaccines to be effectiveare that they contain antigens that can stimulate tumor-protective immuneresponses and that some of these antigens are present on thetumor to be treated. Unfortunately, these antigens are still not known.To circumvent this problem, polyvalent vaccines can be constructedcontaining a broad array of melanoma-associated antigens. Severalstrategies are available to construct such polyvalent vaccines; each hasadvantages and disadvantages. Clinical trials have shown that vaccinesare safe to use and have much less toxicity than current therapy formelanoma. Vaccines can stimulate both antibody and T-cell responsesagainst melanoma, with the type of response induced, its frequency,and its magnitude depending on the vaccine and the adjuvant agentused. A growing body of evidence suggests that vaccines can be clinicallyeffective. This evidence includes correlations between vaccineinducedantibody or T-cell responses and improved clinical outcome,clearance of melanoma markers from the circulation, improved survivalcompared to historical controls, and most convincingly, two randomizedtrials in which the recurrence-free survival of vaccine-treatedpatients was significantly longer than that of control groups.
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Consider a Single Intraoperative Fraction for Patients Eligible for Hypofractionated Regimens?Customized more aggressive treatments should be given to patients with the worst prognosis. For most of the other breast patients, shorter and often milder treatment is also a humble victory in our daily struggle against cancer.
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Pemetrexed in Pancreatic CancerSingle-agent gemcitabine (Gemzar) is the standard of chemotherapyfor advanced pancreatic cancer, with no phase III trials to date havingshown significantly improved survival with gemcitabine-based combinationsvs single-agent treatment. The multitargeted antifolate agentpemetrexed (Alimta) shows synergistic effects in vitro in combinationwith gemcitabine, and activity and good tolerability when used as singleagenttreatment in advanced pancreatic cancer. In a phase II trial inpatients with advanced pancreatic cancer, the combination ofgemcitabine at 1,250 mg/m2 on days 1 and 8 plus pemetrexed at 500mg/m2 on day 8 after gemcitabine every 21 days resulted in a mediansurvival of 6.5 months and a 1-year survival rate of 29%. Neutropeniawas the primary toxicity, with grade 4 toxicity in 51% of patients. Thepromising results of this trial prompted the initiation of a phase IIItrial comparing gemcitabine at 1,000 mg/m2 on days 1, 8, and 15 every28 days vs the 21-day gemcitabine/pemetrexed regimen given with vitaminsupplementation in patients with pancreatic cancer. The primaryoutcome measure was overall survival, with secondary measures includingresponse rate, progression-free survival, and quality of life.While an increase in response and time to progression was reported forthe gemcitabine/pemetrexed combination, there were no significantdifferences in survival between treatment arms.
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Multiple Myeloma in the Elderly: When to Treat, When to Go to TransplantUntil recently, standard treatment of multiple myeloma (MM) in elderly patients who were not candidates for autologous stem cell transplantation was with the combination of melphalan plus prednisone (MP). Novel agents (thalidomide, lenalidomide, bortezomib) are dramatically changing frontline therapy of MM. Randomized studies have shown the superiority of adding one novel agent to MP, either thalidomide (MPT) or bortezomib (MPV). The combination of lenalidomide with low doses of dexamethasone is another attractive alternative. Recent results show that maintenance therapy with low-dose lenalidomide may prolong progression-free survival. The objective of these improved treatment regimens should be to achieve complete response, as in younger patients. However, toxicity is a significant concern, and doses of thalidomide and of myelotoxic agents should be reduced in patients who are older than 75 years or who have poor performance status. Weekly bortezomib appears to induce severe peripheral neuropathy less frequently than the same agent administered twice weekly. Autologous stem cell transplantation is feasible in selected fit patients over 65 years of age, and its results are improved by the addition of novel agents before and after high-dose therapy. However, considering the progress in non-intensive therapy, autologous transplantation should not currently be offered to elderly patients outside of a clinical trial.
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Docetaxel/Doxorubicin/Cyclophosphamide in the Treatment of Metastatic Breast CancerPreliminary results from phase I trials suggest that the use of docetaxel (Taxotere) and doxorubicin (Adriamycin) is a well tolerated and highly active combination regimen for
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Natural History and Treatment of Malignant ThymomaThymomas are rare, slow-growing neoplasms that are considered to be malignant because of their potential invasiveness. The most widely used staging system is that of Masaoka and colleagues, which takes into account
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In Patients With Colorectal Liver Metastases, Can We Still Rely on Number to Define Treatment and Outcome?The surgical strategies of “classic, reversed, or combined” resection of colorectal cancer and colorectal liver metastases have to be tailored to a specific patient, and all three strategies have a role in the treatment of stage IV colorectal cancer today.
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Improving Radiotherapy After Breast-Conserving SurgeryIn assessing the value of innovations in breast cancer radiotherapy, it is important to consider not only the basis of their impact on mortality, local recurrence, and cosmesis; emphasis should also be placed on factors such as treatment tolerance, convenience, and delayed morbidities.
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Commentary (Droz): Prognostic Factors in Low-Stage Nonseminomatous Testicular CancerPrognostic Factors in Low-Stage Nonseminomatous Testicular Cancer
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Epigenetics in Cancer: What's the Future?The understanding that epigenetic changes are prevalent in cancer and play a causative role in its biology has led to the development of new therapeutic approaches that target the epigenetic machinery.
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Unknown Primary Carcinomas: Diagnosis and ManagementUnknown primary carcinomas are a significant health problem, constituting 3% to 10% of all tumors diagnosed in the United States each year [1,2]. While the majority of patients with metastatic carcinoma of unknown primary origin have short survival times and disease resistant to treatment, recent findings suggest that certain subsets of patients have tumors that are responsive to chemotherapy. Others can be successfully treated with regional therapy.
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Adjuvant Therapy for Early Lung Cancer: Reflections and PerspectivesThe standard of care with regard to adjuvant chemotherapy of lung cancer has changed remarkably over the past 3 years. Until the initial report of the International Adjuvant Lung Trial in 2003, there was no real evidence from any individual randomized clinical trial (RCT) that adjuvant chemotherapy improves survival in resectable non-small-cell lung cancer. However, five RCTs that have now been reported indicate that adjuvant chemotherapy is effective, at least in certain subgroups of resectable patients. Moreover, numerous meta-analyses have also reported a positive effect from adjuvant treatment. Nonetheless, because of methodologic issues and conflicting results, the question of who should be treated and what constitutes optimal adjuvant therapy remains controversial. This article reviews the recent randomized trials that have contributed to a change in the state of the art, as well as some of the methodologic problems that may have confounded their proper interpretation. It also considers newer approaches to adjuvant therapy, with a particular focus on strategies that incorporate our growing knowledge of molecular medicine and predictive factors to the field of adjuvant chemotherapy of lung cancer.
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Update on European Adjuvant Trials With Irinotecan for Colorectal CancerRecent combinations of chemotherapy have significantly improved the response rate and survival time for patients with metastatic colorectal cancer.
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Pharmacologic Management of Adult Cancer PainThe intent of this article is to provide oncology nurses with practical information on the pharmacologic management of pain. The use of chemotherapy, radiation therapy, and surgery in pain management will not be addressed in this article. It is the second in a three-part series on cancer pain management. The first in the series (September 2006) addressed cancer pain assessment. In a future issue, the third in the series will address nonpharmacologic approaches to cancer pain management.
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Mounting Evidence for Postmastectomy Locoregional Radiation TherapyThe recommendations derived from the existing clinical trials of postmastectomy adjuvant radiation therapy seem to parallel the lessons learned from the trials of postoperative adjuvant chemotherapy conducted during the previous 20 to 30 years. From
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Reproductive Issues in the Gynecologic Cancer PatientFor women with a gynecologic cancer, reproductive concerns may vary not only by site of disease but also by the presentation and manifestation of the disease. Gynecologic cancer can present before childbearing has been started or completed, during pregnancy, or can even arise out of pregnancy.
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A Patient With Tumor Lysis SyndromeTumor lysis syndrome (TLS) is a potentially life-threatening metabolic disorder characterized by an elevated uric acid level, elevated serum potassium and phosphorus levels, and a decreased calcium level.
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Hospice and Palliative Care: Program Needs and Academic IssuesWith the renaissance of interest in how best to care for patients with terminal illness comes the need to recognize palliative care and hospice programs as the completion of comprehensive cancer care, not as its antithesis. In
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Recognizing and Managing Side Effects Associated With Novel Targeted Therapies:Nursing management of patients with advanced malignancies presents a formidable challenge. In addition to the discomfort and debilitation these diseases can cause, side effects of traditional treatment modalities such as surgery, chemotherapy, and radiation may lead to severe and sometimes fatal sequelae. New targeted therapies promise an effective treatment with more easily tolerated and managed side effects. Basic understanding of the drugs' mechanism of action contributes to the successful management of the toxicities that can be manifested. Effective patient education results in improved compliance with treatment regimens and potentially improved clinical outcomes. Nursing intervention remains a vital component in the successful use of these novel agents.
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Chemobrain: Is It Time to Initiate Guidelines for Assessment and Management?Cognitive dysfunction during and following treatment for cancer, often referred to as “chemobrain,” is an adverse effect of cancer treatment that may interfere with patients’ ability to resume their precancer lifestyle, with subsequently reduced quality of life.
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Psychological Outcomes Associated With Anemia-Related Fatigue in Cancer PatientsThis article examines the relationships between chemotherapy-induced anemia, fatigue, and psychological distress among anemic cancer patients with solid tumors.
