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Molecular Staging of Prostate Cancer: Dream or Reality?The promise of using reverse transcriptase–polymerase chain reaction (RT-PCR) technology for the detection of circulating prostate cancer cells in peripheral blood, although technically feasible at the molecular level, has proven clinically impractical for routine implementation in patient management. Reverse transcriptase–polymerase chain reaction has been successfully applied to detect and quantify (relatively speaking) genes that are differentially expressed in cells and tissues obtained from patients during various stages of malignant growth. In addition, the method has been applied to the detection of circulating cancer cells in peripheral blood using highly specific primer sets for specific molecular targets. These include epithelial cell cytokeratins for breast cancer, as well as enzymes, such as tyrosinase for melanoma and prostate-specific antigen (PSA) and prostate-specific membrane antigen (PSMA) for prostate cancer, using either nonnested or nested methodologies.
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Advances in the Treatment of Gynecologic MalignanciesOver the past few decades, we have gained a better understanding of the risk factors associated with the recurrence of endometrial cancer. Adjuvant postoperative radiotherapy in an intermediate-risk group of
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AIDS Malignancies in the Era of Highly Active Antiretroviral TherapyA dramatic spike in the incidence of Kaposi’s sarcoma (KS) in never-married men in New York and California in 1981 was one of the first indications of a new disease now known as acquired immunodeficiency syndrome (AIDS). We now appreciate a number of mechanisms by which human immunodeficiency virus (HIV) infection contributes to the pathogenesis of these tumors. The article by Drs. Gates and Kaplan provides an excellent review of changes in the epidemiology, presentation, and treatment of these tumors since the development of potent combination anti-HIV therapy.
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Management of Bispecific Toxicities and Final Thoughts on Treatments in MMClosing out the panel discussion, experts review the management of bispecific-related toxicities and share their final thoughts on treating patients with multiple myeloma.
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Improving the Therapeutic Ratio in Hodgkin Lymphoma Through the Use of Proton TherapyThis review addresses the rationale and evidence for-and the challenges, cost implications, and future development of-proton therapy as an important part of the treatment strategy in Hodgkin lymphoma.
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Economic and Quality of Life Outcomes: Managed Care PerspectivesA variety of economic factors have created a growing demand for health care reform and the rapid expansion of managed care plans. Absence of a clear, commonly accepted definition of managed care constitutes one of the
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The 340b Drug Discount Program: Oncology's Optical IllusionThe historical rationale for the 340b program is a good one: indigent patients do need reliable access to prescription drugs, and entities meeting this need should be supported. However, the evolution of the 340b program has strayed widely from its original intent.
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Biphenotypic Extramedullary Blast Crisis of Chronic Myeloid Leukemia With Variant Philadelphia Chromosome TranslocationA 45-year-old man with a known history of rheumatic fever and aortic valve replacement 15 years earlier presented with the chief complaint of a 1-month history of progressive, intense, nonmechanical lumbar pain.
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Mini Quiz: Motivational PharmacotherapyLearn about what motivational pharmacology is and is not in this quiz.
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Principles of Chemoradiation: Theoretical and Practical ConsiderationsChemotherapy agents known to enhance the effects of radiation in preclinical studies have been used concurrently with radiotherapy in numerous clinical trials with the prospect of further enhancing radiation-induced
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Is This a True Renaissance for the Treatment of Prostate Cancer?The article by Rove et al represents a comprehensive review of the recent clinical advances in the treatment of metastatic, castrate-refractory prostate cancer. The therapeutic armamentarium for the treatment of prostate cancer remains limited compared to other malignancies, such as breast cancer. It took approximately 14 years after mitoxantrone data emerged for us to see the approval of another chemotherapy agent, docetaxel. The successful outcome of recent clinical trials confirms that true advancement in prostate cancer treatment can be achieved by rational and rigorous clinical testing, but participation in prostate cancer clinical trials remains low, especially participation by African-American patients. Research study enrollment should be a high priority for those health care professionals who treat this disease.
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Management of Leptomeningeal Disease From Solid TumorsMetastasis of solid tumors to the cerebrospinal fluid is a serious complication of cancer. Although it can occur with any type of cancer, tumors with a high propensity for CNS involvement (brain metastases) are the most likely to spread to the cerebrospinal fluid.
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Intraperitoneal Drug Delivery for Ovarian Cancer: Why, How, Who, What, and When?Epithelial ovarian cancer (EOC) spreads prominently within the peritoneal cavity. In fact, we now know that high-grade serous cancers are often of tubal origin, and their presentation as tubo-ovarian masses renders it likely that intraperitoneal spread occurs as an early event in their clinical evolution.
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Mutated ras as a Predictor of Response: Is It Ready for the Clinic?Preliminary results from two trials presented at the 44th Annual Meeting of ASCO in Chicago have consolidated the role of K-ras as a biomarker of nonresponse to cetuximab and panitumumab in metastatic colorectal cancer (mCRC). The phase III CRYSTAL and OPUS trials presented unplanned subgroup analyses of the correlation of K-ras status with response to therapy with first-line FOLFIRI or FOLFOX, respectively, with or without cetuximab in patients with mCRC. Both studies demonstrated a clear benefit with the addition of cetuximab in K-ras WT patients.
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School Skin Cancer Programs Evolving to Include ComputersSkin cancer is the most common malignancy in the United States, with approximately 1 million cases being diagnosed in 1997.[1] Of these cases, more than 40,000 will be classified as malignant melanoma, the most serious and aggressive form of skin cancer.[1] The worldwide incidence of melanoma is increasing more rapidly than any other form of cancer, and has shown an increase of about 4% per year in the United States.[1,2]
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Giving Honest Information to Patients With Advanced Cancer Maintains HopeOncologists often do not give honest prognostic and treatment-effect information to patients with advanced disease, trying not to “take away hope.” The authors, however, find that hope is maintained when patients with advanced cancer are given truthful prognostic and treatment information, even when the news is bad.
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Management of Marginal Zone LymphomaMZL comprises three different entities that require integration of clinical and pathologic features to make a diagnosis. Treatment is chosen and initiated on the basis of presentation, symptoms, and underlying subtype.
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Perspectives on Salvage Therapy for Non–Small-Cell Lung CancerPlatinum-based chemotherapy offers a modest survival advantage overbest supportive care in chemotherapy-naive patients with a good performancestatus and advanced/metastatic non–small-cell lung cancer(NSCLC). Despite the survival benefit associated with first-line chemotherapy,the majority of patients will experience relapse or disease progression.In clinical practice, an increasing number of patients maintaina good performance status after first-line treatment and are eligible forfurther treatments. Docetaxel (Taxotere) at 75 mg/m2 given once every3 weeks has been the standard of care for second-line chemotherapy sincethe year 2000. Pemetrexed (Alimta) is a novel multitargeted antifolateagent with single-agent activity in first- and second-line treatment ofNSCLC. A large phase III study comparing docetaxel to pemetrexed insecond-line therapy demonstrated that pemetrexed is equally active andless toxic than docetaxel. Based on these results, pemetrexed is a reasonablesecond-line chemotherapy option for patients with recurrent, advancedNSCLC. Progress made in the field of molecular biology has led to theidentification of drugs active against specific cellular targets. Gefitinib(Iressa) and erlotinib (Tarceva) are both orally active tyrosine kinase inhibitorsof the epidermal growth factor receptor. Phase II and III trialshave demonstrated that these agents are active particularly in a subgroupof patients with specific biologic characteristics. Both drugs have beenapproved for the treatment of pretreated NSCLC. Other drugs, such ascetuximab (Erbitux) and bevacizumab (Avastin) have shown promisingactivity in NSCLC and are currently being tested in clinical trials.
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The Management of Early Ovarian CancerApproximately one third of patients with epithelial ovarian cancer present with localized or early-stage disease. Prognostic features identify certain subsets of patients with good risk characteristics who do not require adjuvant
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Gastric CancerThis comprehensive guide for oncologists covers the diagnosis, staging, treatment, and management of gastric cancer.
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Economic and Quality of Life Outcomes in OncologyThis publication is the fourth in a series of quality of life symposia proceedings. The title of our first symposium, which took place in 1989, was "Quality of Life in Current Oncology Practice and Research." In the foreword to the first proceedings, we
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Response of the Normal Eye to High Dose RadiotherapyRadiation therapy of tumors near the eye or optic nerves often requires incidental irradiation of these structures, even when they are not clinically involved by tumor. Depending on the radiation treatment volume and dose required, radiation injury to the lens, lacrimal apparatus, retina, or optic nerve may result. The time to expression and severity of injury are dose-dependent. This paper reviews the results of 157 patients who were followed for a minimum of 3 years after radiotherapy for primary extracranial tumors at the University of Florida, in which the lacrimal gland, lens, retina, and/or optic nerve(s) received irradiation. This review shows that, after treatment at approximately 1.8 to 2.0 Gy per fraction, the incidence of severe dry-eye syndrome, retinopathy, and optic neuropathy appears to increase steeply after doses of 40, 50, and 60 Gy, respectively. [ONCOLOGY 10(6):837-852, 1996]
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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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Genomic Testing in Colorectal Cancer: How Much Is Enough?The identification and characterization of gene signatures, driver events, and pharmacogenomics in molecularly homogeneous subsets of patients is likely to advance effective drug development strategies in colorectal cancer.
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Renal Cancer Management in a Patient With Chronic Kidney DiseaseA 69-year-old man presented in the urology clinic for evaluation of bilateral renal masses, discovered incidentally during routine exams for follow-up of his chronic kidney disease.
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Perioperative Treatment of Gastrointestinal Stromal TumorsGastrointestinal stromal tumors (GISTs) originate from the interstitial cells of Cajal or a precursor and are the most common mesenchymal neoplasms of the gastrointestinal (GI) tract.[1] Although GISTs often present as localized masses, they are typified by a high risk of metastatic relapse, most commonly in the liver and peritoneum.
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The Oral Fluorouracil ProdrugsDiscussed herein are selected oral fluorinated pyrimidines that are converted to 5-fluorouracil (5-FU) in vivo to exert antitumor activity. These agents include capecitabine (Xeloda), tegafur-uracil (UFT) plus leucovorin (Orzel), and S-1 (BMS247616). These agents offer the convenience of an orally administered therapy with potentially fewer toxic effects than conventional bolus regimens of 5-FU plus leucovorin. These oral agents provide prolonged 5-FU exposure at lower peak concentrations than observed with bolus intravenous administration of 5-FU and may confer pharmacoeconomic advantages by reducing administration costs and toxicity-related hospitalizations. These regimens also have the potential for improved therapeutic activity by achieving higher 5-FU concentrations in the tumor or by biochemically modulating 5-FU. Phase III trials in patients with advanced colorectal carcinomas are comparing the antitumor activity of these agents with that of intravenous 5-FU plus leucovorin. [ONCOLOGY 12(Suppl 7):48-51, 1998]
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High-Dose Chemotherapy With Autologous Stem Cell Rescue in the Outpatient SettingOutpatient bone marrow transplant (BMT) strategies, as reviewed by Dix and Geller, have evolved for various reasons—from social to medical. If high-dose approaches are to become a viable treatment for common cancers, such as breast cancer, the refinement of transplants to a “kinder and gentler” approach is essential.
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Molecular Markers for Diagnosis, Staging, and Prognosis of Bladder CancerConventional histopathologic evaluation of bladder cancer, encompassing tumor grade and stage, is inadequate to accurately predict the behavior of most bladder tumors. Intense research efforts are under way to identify and
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Breast Cancer Surgical Practice GuidelinesThe Society of Surgical Oncology surgical practice guidelines focus on the signs and symptoms of primary cancer, timely evaluation of the symptomatic patient, appropriate preoperative evaluation for extent of disease, and role of the surgeon in
