There is strong evidence from longitudinal cohort studies of men with both treated and untreated Gleason 6 prostate cancer to suggest that Gleason 6 disease, when not associated with higher-grade cancer, virtually never demonstrates the ability to metastasize and thus represents an indolent entity that does not require treatment.
Patients with locally advanced cancers have a poor prognosis when treated with radiotherapy and/or surgery alone. The appearance of distant metastases shortly after removal of the primary tumor indicates that micrometastases are already present at the time of diagnosis. We observed a favorable outcome in patients with locally advanced breast cancer treated with a prolonged regimen of neoadjuvant chemotherapy plus granulocyte-macrophage colony-stimulating factor (GM-CSF [Leukine]) compared with patients receiving fewer chemotherapy cycles prior to surgery and radiotherapy. These results can partly be explained by the dose-intensive regimen used, but biologic and immunologic processes inherent to the prolonged presence of the primary tumor and its draining lymph nodes might also contribute to the beneficial outcome. The effects of the prolonged presence of the primary tumor during chemotherapy and GM-CSF administration on the antitumor immune response, and more specifically the functional properties of dendritic cells and T cells, are currently being investigated in a multicenter randomized clinical trial comparing prolonged neoadjuvant chemotherapy plus cytokines with a conventional treatment schedule. Aside from investigations concerning the immune system, other biologic processes, such as tumor angiogenesis, are being investigated at the same time. [ONCOLOGY 16(Suppl 1):32-39, 2002]
In their article, "Trastuzumab and Beyond: New Possibilities for the Treatment of HER2-Positive Breast Cancer," Drs. Morris and Carey provide an excellent summary of therapeutic progress in this disease, and also turn their attention to the challenge now facing us--that of understanding the heterogeneity of HER2-positive breast cancer and mechanisms of resistance to trastuzumab (Herceptin)-based therapy.
Clinical practice guidelines have been a subject of increasing interest for the past several years, and, recently, they have been developed for oncology. In March, 1996, the National Comprehensive Cancer Network (NCCN), a coalition of 15 major US cancer centers, presented the first version of their practice guidelines in oncology. These guidelines covered most of the major cancer sites.
Multiple endocrine neoplasia type 2 (MEN-2) is characterized by medullary thyroid carcinoma in combination with pheochromocytomas and, sometimes, parathyroid adenomas. Since 1993, the psychosocial implications of DNA analysis for MEN-2 have been studied in the Netherlands. This article summarizes the first results of that study. Individuals who applied for DNA analysis cited the need to reduce uncertainty as the major reason for wanting the test. An unfavorable test outcome resulted in anxiety and depression but also relief.
Aboulafia provides an extensive review of the occurrence of and treatments for bone marrow disorders that complicate HIV infection and AIDS. Understanding of the pathogenesis of these disorders is increasing, and the availability of recombinant colony-stimulating factors (CSFs) has, in many ways, facilitated the treatment of HIV-1 infection and its complications. Nonetheless, numerous critical questions remain regarding the optimal use of these expensive and powerful reagents.
Although the causes and natural histories of breast and cervical cancer are different, the public health responses to these diseases have been similar. Early detection of breast cancer and primary prevention of cervical cancer are possible through community-based screening programs; however, early detection of both breast and cervical cancer is less common among low-income women (defined as up to 250% of poverty level, depending on family size). This report presents morbidity and mortality data regarding breast and cervical cancer, screening recommendations, an update on the National Breast and Cervical Cancer Early Detection Program (NBCCEDP), and recommended priority activities for the NBCCEDP. The NBCCEDP is a major public health effort to increase breast and cervical cancer screening among uninsured, low-income women.
The aging of the population is a social phenomenon that will present a challenge to clinical practice in the 21st century. Women constitute a majority of the elderly population as they outlive males by 5 to 7 years. Ovarian,
The review by Dr. Akhtari outlines the diagnosis, prognosis, and treatment options for patients with myelodysplastic syndromes (MDS), and touches on the current challenges in treating patients suffering from MDS.
The incidence of metabolic syndrome is rapidly increasing. Metabolic syndrome is associated with elevated morbidity and mortality secondary to cardiovascular disease, insulin resistance, and hepatic dysfunction. A body of evidence has already implicated metabolic syndrome as a cancer risk factor; emerging evidence now suggests that cancer survivors themselves may be at risk for developing metabolic syndrome as a result of their anti-cancer therapy. Treatment of both breast cancer and prostate cancer often involves hormone-modifying agents that have been linked to features of metabolic syndrome. Androgen suppression in men with prostate cancer is associated with dyslipidemia, increasing risk of cardiovascular disease, and insulin resistance. Anti-estrogen therapy in women with breast cancer can affect lipid profiles, cardiovascular risk, and liver function. Similar findings have been noted in men with testicular cancer treated with chemotherapy. In addition, several emerging therapies, including mammalian target of rapamycin (mTOR) inhibitors and targeted kinase inhibitors, are increasingly associated with some features of metabolic syndrome. As the number of cancer survivors continues to grow, consideration of these factors and of the risk of metabolic syndrome will become increasingly important when choosing between therapy options and managing long-term follow-up.
This video examines current research on the use of vaccines in low-grade glioma for the prevention of high-grade disease.
A phase II study of combined-modality treatment consisting of uracil and tegafur (in a molar ratio of 4:1 [UFT]) plus cisplatin (Platinol) and concurrent radiotherapy was conducted to evaluate the activity of this regimen in
This article represents the consensus opinion of an expert panel and may be used to inform clinical recommendations in vaginal cancer management.
A 70-year-old man presented at our institution for a second opinion regarding diagnosis of a urinary bladder mass. He had a 3-year history of worsening urinary incontinence and urgency, for which he had undergone colonoscopy, as well as testing for prostate issues; all test results were negative.
Multiple endocrine neoplasia type 2 (MEN-2) is characterized by medullary thyroid carcinoma in combination with pheochromocytomas and, sometimes, parathyroid adenomas. Since 1993, the psychosocial implications of DNA analysis for MEN-2 have been studied in the Netherlands. This article summarizes the first results of that study. Individuals who applied for DNA analysis cited the need to reduce uncertainty as the major reason for wanting the test. An unfavorable test outcome resulted in anxiety and depression but also relief.
Over the past 3 decades, hematopoietic stem cell transplantation has become a lifesaving art that is applied to a variety of malignant and nonmalignant disorders.[1] In the 1970s, several groups demonstrated that advanced leukemia and aplastic anemia patients were cured using sibling-matched allogeneic bone marrow transplantation. By the 1980s, many published reports confirmed that relapsed and refractory lymphoma patients could attain long-term disease-free survival as a result of utilizing autologous bone marrow transplantation.
Dr. Newman has written a comprehensiveand judicious reviewon the highly topical subjectof ductal lavage, and is to becongratulated. We would like to giveparticular emphasis to several of theissues she raises.
In this review, the authors discuss past attempts at lung cancer screening, the results of the National Lung Cancer Screening Trial, and innovative tests for lung cancer screening currently being evaluated.
Obesity is a complex, chronic disease that has reached epidemic proportions in the United States. Obesity is now linked with numerous health conditions, including many oncologic diagnoses. Its association with prostate cancer, the most prevalent cancer in men, has also been investigated, with studies suggesting a direct relationship between increasing obesity and prostate cancer mortality. Outcomes data for specific interventions in obese patients with prostate cancer have only recently begun to emerge. Surgery, while feasible even in the very obese, may result in less than optimal cancer control rates. Brachytherapy data are emerging, and are promising. No outcomes data are available for the use of external-beam radiation in obese patients. Long-term data for external-beam radiation, as well as for surgery and brachytherapy, are required to determine the most appropriate treatment for obese patients with prostate cancer. These data, coupled with a more thorough understanding of the biochemical relationship between obesity and prostate cancer, will be necessary to make optimal management decisions for obese patients with prostate cancer in the future.
Cure rates for non–small-cell lung cancer (NSCLC) remain low and the prognosis for patients with even stage IA disease is poor. Complete surgical resection is still the first-line treatment for NSCLC, but many investigators
A prospective randomized trial to evaluate the efficacy of maintenance chemotherapy after surgical treatment of head and neck carcinoma was performed at 67 institutions. A comparison was made between the following two groups: the treatment group, which received 1-year oral administration of UFT at 300 mg/d following curative surgical treatment (UFT arm), and the nontreatment group, which received curative surgery alone (control arm).
A phase II study of combined-modality treatment consisting of uracil and tegafur (in a molar ratio of 4:1 [UFT]) plus cisplatin (Platinol) and concurrent radiotherapy was conducted to evaluate the activity of this regimen in
In a step toward a clinical trial, the tumor response and survival of a weekday-on/weekend-off schedule of UFT was compared with its conventional daily schedule in a cancer-bearing rat model. The dose-intensive schedule-600 mg of UFT for 5 days followed by 2 drug-free days-amounts to a weekly dose similar to the conventional schedule of 400 mg/day. The weekday-on/weekend-off schedule provided increased survival and significantly greater antitumor activity than the conventional daily schedule, with no difference in adverse reactions.
In the United States and Europe, the combination of oral UFT plus leucovorin has been reported to produce objective responses and survival rates similar to those achieved with standard intravenous 5-fluorouracil plus leucovorin in patients with metastatic colorectal cancer, with reduced toxicity.
In the United States and Europe, the combination of oral UFT plus leucovorin has been reported to produce objective responses and survival rates similar to those achieved with standard intravenous 5-fluorouracil plus leucovorin in patients with metastatic colorectal cancer, with reduced toxicity.
A single-institution phase II study indicated that combination chemotherapy using UFT (tegafur and uracil) plus cisplatin (Platinol) in patients with non-small-cell lung cancer was active with less host toxicity than other cisplatin-
Approximately 10% of all epithelial ovarian carcinoma cases are associated with inheritance of an autosomal-dominant genetic mutation conferring a predisposition to cancer with variable penetrance. Two such manifestations
Soft-tissue sarcomas comprise approximately 7% of all pediatric malignancies. Surgery, chemotherapy, and radiation therapy have significantly improved survival.
Minimizing late treatment toxicities in these patients remains an important priority due to both the young age of the patients and the high cure rate that can be achieved.
Adjuvant therapy, almost bydefinition, overtreats patients.It is the holy grail of those ofus involved in adjuvant therapy to definethe patients who are going to failso that we can decrease the incidenceof tumor recurrence and avoid givingadditional therapy to patients who havebeen cured by their primary treatment.