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Radiation Therapy for Malignancies in the Setting of HIV DiseaseThe article by Dr. Swift provides an excellent, comprehensive review of malignancies in the setting of HIV and their management with radiation. It is important for clinicians to have an understanding of the current antiviral management of HIV disease, as well as its implications for patient longevity. This information, in the context of an individual patient's history, is crucial in determining whether treatment will be "palliative" or "curative," and therefore, which radiation dose/fractionation schedule will be employed. With improved antiviral therapies and increasing longevity, the late effects of radiotherapy, as well as recall phenomena (recurrent radiation effects), with the subsequent use of chemotherapeutic agents, must now be considered.
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Current Clinical Trials With STI571STI571 (Gleevec) is a member of the 2-phenylaminopyrimidine family of adenosine triphosphate (ATP) binding site inhibitors of protein tyrosine kinase. It potently inhibits the tyrosine kinase activity of Abl and Bcr-Abl,[1-3] platelet-derived growth factor receptor (PDGF-R), and Kit (stem cell factor receptor).[4-6]
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Gemcitabine and UFT Plus Oral Calcium Folinate: Phase I StudyGemcitabine (Gemzar) (2-deoxy-2,2-difluorocytidine) is a new antimetabolite being increasingly used in the treatment of solid tumors. It is an analog of deoxycytidine and cytosine arabinoside (Ara-C) (Figure 1) that has shown significant activity
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Hyperthermia and Intravesical Therapy: Emerging One-Two Punch for Bladder Cancer?Bladder cancer is the fourth most common cancer (excluding skin cancer) in the United States and ranks eighth as a cause of death from cancer among men; there will be an estimated 70,530 new cases and 14,680 cancer-related deaths in the United States in 2010.[1] Of new cases, 70% to 80% present with non–muscle-invasive bladder cancer (NMIBC). Despite endoscopic and intravesical treatments with curative intent, 50% to 70% of these cancers recur, usually within 5 years, and 10% to 30% progress to muscle-invasive disease, in the majority of cases as high-grade lesions.[2,3] Bladder cancer poses a significant economic burden due to the cost of the lifetime need for surveillance, the need to treat recurrent tumors, and the cost of complications associated with treatment. Medicare estimates have ranked bladder cancer treatment the seventh costliest among cancers, with a 5-year net cost of approximately one billion dollars.[4]
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Current Status of Radiation Sensitization by FluoropyrimidinesNumerous clinical studies suggest that the combination of the fluoropyridimine fluorouracil and radiation is a more effective treatment for many cancers, especially gastrointestinal tumors, than is either modality alone.
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ACR Appropriateness Criteria® Postradical Prostatectomy Irradiation in Prostate CancerThe purpose of this article is to present an updated set of American College of Radiology consensus guidelines formed from an expert panel on the appropriate use of radiation therapy in postprostatectomy prostate cancer.
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Superficial Bladder Cancer: Decreasing the Risk of RecurrenceSuperficial bladder cancer can be a frustrating disease for both the patient and physician. It has been referred to as a "nuisance disease" because of its propensity for recurrence, necessitating frequent cystoscopies and trips to the operating room for resection of recurrent disease. In addition, however, there looms for the patient and physician the 10% to 15% probability of disease progression, often requiring cystectomy to achieve local control and placing the patient at much greater risk for disease mortality. The challenge is to predict which patients will benefit from adjuvant therapy in order to avoid disease progression and, secondarily, disease recurrence.
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Adjuvant Treatment of Non-Small-Cell Lung Cancer: How Do We Improve the Cure Rates Further?Surgery remains the initial treatment for patients with early-stage non-small-cell lung cancer (NSCLC). Additional therapy is necessary because of high rates of distant and local disease recurrence after surgical resection. Early trials of adjuvant chemotherapy and postoperative radiation were often plagued by small patient sample size, inadequate surgical staging, and ineffective or antiquated treatment. A 1995 meta-analysis found a nonsignificant reduction in risk of death for postoperative cisplatin-based chemotherapy. Since then, a new generation of randomized phase III trials have been conducted, some of which have reported a benefit for chemotherapy in the adjuvant setting. The role of postoperative radiation therapy remains to be defined. It may not be beneficial in early-stage NSCLC but still may have utility in stage IIIA disease. Improvement in survival outcomes from adjuvant treatment are likely to result from the evaluation of novel agents, identification of tumor markers predictive of disease relapse, and definition of factors that determine sensitivity to therapeutic agents. Some of the molecularly targeted agents such as the angiogenesis and epidermal growth factor receptor inhibitors are being incorporated into clinical trials. Preliminary results with gene-expression profiles and lung cancer proteomics have been promising. These techniques may be used to create prediction models to identify patients at risk for disease relapse. Molecular markers such as ERCC1 may determine response to treatment. All of these innovations will hopefully increase cure rates for lung cancer patients by maximizing the efficacy of adjuvant therapy.
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Cryotherapy for Liver TumorsThe majority of metastatic liver tumors cannot be resected because of bilobar involvement, location, size, and/or proximity to large vessels. Drs. McCarty and Kuhn succinctly summarize the existing literature on cryosurgery and its potential use in patients with unresectable liver tumors.
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Intermediate- and High-Grade Non-Hodgkin's LymphomasThe non-Hodgkin's lymphomas (NHLs) are a collection of lymphoid malignancies with a diverse pathology and natural history. This diversity is illustrated by the different histologic subtypes and classifications of NHL that have appeared over the years.
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Intraoperative Hyperthermic Intraperitoneal Chemotherapy in Patients With Advanced Ovarian CancerHere we discuss the advantages and pitfalls of HIPEC in advanced ovarian cancer, as well as current data and ongoing prospective trials.
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ASCO: Impact of 2 New Drugs for the Treatment of Metastatic MelanomaDr. Antoni Ribas, UCLA’s Jonsson Comprehensive Cancer Center and a presenter at this year’s annual meeting of the American Society of Clinical Oncology, discusses the impact of 2 new drugs- ipilimumab (Yervoy) and vemurafenib (Zelboraf)-for the treatment of metastatic melanoma.
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UFT Plus or Minus Calcium Folinate for Metastatic Colorectal Cancer in Older PatientsTwo studies were carried out to determine the activity and evaluate the toxicity of oral chemotherapy with uracil and tegafur in a 4:1 molar ratio (UFT) plus or minus calcium folinate in elderly patients with advanced colorectal
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Management of Metastatic Cutaneous MelanomaThe results of treatment for metastatic melanoma remain disappointing.Single-agent chemotherapy produces response rates ranging from8% to 15%, and combination chemotherapy, from 10% to 30%. However,these responses are usually not durable. Immunotherapy, particularlyhigh-dose interleukin (IL)-2 (Proleukin), has also shown a lowresponse rate of approximately 15%, although it is often long-lasting.In fact, a small but finite cure rate of about 5% has been reported withhigh-dose IL-2. Phase II studies of the combination of cisplatin-basedchemotherapy with IL-2 and interferon-alfa, referred to as biochemotherapy,have shown overall response rates ranging from 40% to60%, with durable complete remissions in approximately 8% to 10% ofpatients. Although the results of the phase II single-institution studieswere encouraging, phase III multicenter studies have reported conflictingresults, which overall have been predominantly negative. Variousfactors probably explain these discrepancies including differentbiochemotherapy regimens, patient selection, and, most importantly,“physician selection.” Novel strategies are clearly needed, and the mostencouraging ones for the near future include high-dose IL-2 in combinationwith adoptive transfer of selected tumor-reactive T cells afternonmyeloablative regimens, BRAF inhibitors in combination with chemotherapy,and the combination of chemotherapeutic agents andbiochemotherapy with oblimersen sodium (Genasense).
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Omics as Useful Tools in Clinical Practice: Are We There Yet?Clinicians and bioinformatics experts must learn to speak the same language, starting with basic principles regarding analytical validity, clinical validity, and clinical utility. More than ever, a true partnership between clinical, laboratory, and bioinformatics scientists as part of a multidisciplinary team is needed to benefit our patients.
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UFT/Methotrexate/Leucovorin for Breast Cancer Patients in Progression After HDCT/PBPC SupportTwenty-four patients with metastatic breast cancer that had progressed after high-dose chemotherapy with peripheral blood progenitor cell (PBPC) support were given intramuscular methotrexate in combination with oral
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UFT in Combination as Adjuvant Therapy for Breast CancerBetween 1989 and 1993, 409 evaluable patients with breast cancer have been treated with tegafur and uracil (UFT) in an adjuvant setting in two different trials. Data from both trials were reviewed in December 1995 after a
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Locoregional Recurrence of an HPV-Positive Squamous Cell Carcinoma of the Head and NeckLocoregional recurrences are a major source of morbidity and mortality for patients with squamous cell carcinomas of the head and neck (HNSCC).
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The Variegated Morphology of HPV-Related Neoplasms of the PenisOur commentary aims to expand on the evolution and present state of the art in the pathology of HPV in penile cancer and precancerous lesions.
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Gemcitabine and Cisplatin Combination in Early-Stage Non-Small-Cell Lung CancerA number of randomized clinical trials now support the conclusion that the combined-modality regimen that includes gemcitabine (Gemzar) and cisplatin (Platinol) may improve survival in disseminated non-small-cell lung
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Gemcitabine and Paclitaxel as Salvage Therapy in Metastatic Breast CancerIn a phase II trial, 29 patients with anthracycline-pretreated or anthracycline-resistant metastatic breast cancer in whom anthracycline-containing first- or second-line chemotherapy failed received combination paclitaxel
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10 Best Oncology AppsOncologists were among the first practitioners to embrace mobile technologies. We present the top 10 oncology apps for iPhone, iPad, and Android devices.
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New Standard of Care in Relapsed, Refractory Myeloma?In this video, Antonio Palumbo, MD, discusses results of the CASTOR trial, which studied daratumumab, bortezomib, and dexamethasone in relapsed or refractory multiple myeloma.
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Unanswered Questions: Monoclonal Antibodies in the Treatment of Advanced Non–Small-Cell Lung CancerDespite the fact that bevacizumab and cetuximab are both in an advanced stage of clinical development for use in treatment for unresectable NSCLC (with bevacizumab already licensed for the use in clinical practice), several unanswered questions regarding these drugs remain. A number of ongoing trials have been specifically addressed to answer them, however, the first priority should be to personalize treatment, through clinical or biological markers, in order to better select patients who could benefit from targeted therapy with decreased toxicity.
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ACR Appropriateness Criteria® Adjuvant Management of Early-Stage Endometrial CancerAfter a review of the published literature, the panel voted on three variants to establish best practices for the utilization of imaging, radiotherapy, and chemotherapy after primary surgery for early-stage endometrial cancer.
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Weekly Irinotecan and Concurrent Radiation Therapy for Stage III Unresectable NSCLCIn preclinical studies, the topoisomerase I inhibitor irinotecan (Camptosar, CPT-11) has demonstrated activity as a radiosensitizer, probably due to its ability to inhibit potentially lethal radiation damage repair. We conducted a
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Updated Data Confirm Benefit of Single SBRT Dose for NSCLCThis video examines updated data from a phase II trial that compared a single dose of high-intensity SBRT with a standard three-dose schedule as treatment for patients with non-small-cell lung cancer.
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Neoadjuvant Chemoradiation for Rectal Cancer: Is More Better?Neoadjuvant chemoradiation has become the favored adjuvant treatment for stages II and III rectal cancer. Compared to postoperative chemoradiation, this modality of treatment has been shown to be superior in terms of toxicity, local relapse, and sphincter-saving.[1] This article will focus on the evolution of neoadjuvant chemotherapy over the past 2 decades, current acceptable neoadjuvant standards, and current investigational regimens.
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HPV and the Immune System in Head and Neck Cancers: Therapeutic ConsiderationsA review of the role of immune therapy in HPV-associated head and neck squamous cell carcinoma, along with the evidence and perspective behind differing therapeutic considerations.
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The Significance of Anemia in Elderly Patients with CancerAnemia raises special concerns in older cancer patients. This review addresses the prevalence, causes, and mechanisms of anemia in older individuals, the complications of anemia in this population (including its impact on cancer treatment), and the appropriate management of anemia in the elderly.
