Improvements in Tumor Targeting, Survivorship, and Chemoprevention Pioneered by Tamoxifen
May 1st 2006Twenty years ago, antiestrogen therapy with tamoxifen played only a secondary role in breast cancer care. All hopes to cure metastatic breast cancer were still pinned on either the discovery of new cytotoxic drugs or a dose-dense combination of available cytotoxic drugs with bone marrow transplantation. A similar strategy with combination chemotherapy was employed as an adjuvant for primary breast cancer. Simply stated, the goal was to kill the cancer with nonspecific cytotoxic drugs while keeping the patient alive with supportive care. However, medical research does not travel in straight lines, and an alternative approach emerged to solve the problem of controlling tumor growth with minimal side effects: targeted therapy. The approach of using long-term antihormone therapy to control early-stage breast cancer growth would revolutionize cancer care by targeting the tumor estrogen receptor (ER). The success of the strategy would contribute to a decrease in the national mortality figures for breast cancer. More importantly, translational research that targeted the tumor ER with a range of new antiestrogenic drugs would presage the current fashion of blocking survival pathways for the tumor by developing novel targeted treatments. But a surprise was in store when the pharmacology of "antiestrogens" was studied in detail: The nonsteroidal "antiestrogens" are selective ER modulators—ie, they are antiestrogens in the breast, estrogens in the bone—and they lower circulating cholesterol levels. This knowledge would establish a practical approach to breast cancer chemoprevention for women at high risk (tamoxifen) and low risk (raloxifene).
Permanent Prostate Brachytherapy: Is Supplemental External-Beam Radiation Therapy Necessary?
April 30th 2006Permanent prostate brachytherapy with or without supplemental therapies is a highly effective treatment for clinically localized prostate cancer, with biochemical outcomes and morbidity profiles comparing favorably with competing local modalities. However, the absence of prospective randomized brachytherapy trials evaluating the role of supplemental external-beam radiation therapy (XRT) has precluded the development of evidence-based treatment algorithms for the appropriate inclusion of such treatment. Some groups advocate supplemental XRT for all patients, but the usefulness of this technology remains largely unproven and has been questioned by recent reports of favorable biochemical outcomes following brachytherapy used alone in patients at higher risk. Given that brachytherapy can be used at high intraprostatic doses and can obtain generous periprostatic treatment margins, the use of supplemental XRT may be relegated to patients with a high risk of seminal vesicle and/or pelvic lymph node involvement. Although morbidity following brachytherapy has been acceptable, supplemental XRT has shown an adverse impact on long-term quality of life. The completion of ongoing prospective randomized trials will help define the role of XRT as a supplement to permanent prostate brachytherapy.
The Timing of Chemotherapy-Induced Neutropenia and Its Clinical and Economic Impact
April 30th 2006Chemotherapy-induced neutropenia (CIN) and its complications exact a substantial toll on patients with cancer. Febrile neutropenia (FN), a sign of life-threatening infections, is associated with lengthy hospitalizations, early mortality, and high medical costs. In addition, neutropenia is the primary cause of dose reductions and dose delays, limiting the delivery of the chemotherapy at full dose and on schedule and thus compromising long-term survival in patients with potentially curable malignancies. Many recent studies in several major tumor types have documented that the greatest risk of neutropenia and its complications is in the first cycle of chemotherapy, with more than 50% of the first episodes of neutropenia and FN occurring in the first cycle. In addition to their other negative effects, these first-cycle events are also associated with early termination of the chemotherapy. The disproportionately high risk of neutropenia in the first cycle has important implications for managing CIN, as well as for the development and use of guidelines for supportive care. It highlights the importance of determining which patients are at high risk for neutropenia and its complications before the chemotherapy is initiated and implementing interventions, such as prophylactic growth factor support in the first and subsequent cycles, to reduce that risk.
Commentary (Kuban): Permanent Prostate Brachytherapy
April 17th 2006Permanent prostate brachytherapy with or without supplemental therapies is a highly effective treatment for clinically localized prostate cancer, with biochemical outcomes and morbidity profiles comparing favorably with competing local modalities. However, the absence of prospective randomized brachytherapy trials evaluating the role of supplemental external-beam radiation therapy (XRT) has precluded the development of evidence-based treatment algorithms for the appropriate inclusion of such treatment. Some groups advocate supplemental XRT for all patients, but the usefulness of this technology remains largely unproven and has been questioned by recent reports of favorable biochemical outcomes following brachytherapy used alone in patients at higher risk. Given that brachytherapy can be used at high intraprostatic doses and can obtain generous periprostatic treatment margins, the use of supplemental XRT may be relegated to patients with a high risk of seminal vesicle and/or pelvic lymph node involvement. Although morbidity following brachytherapy has been acceptable, supplemental XRT has shown an adverse impact on long-term quality of life. The completion of ongoing prospective randomized trials will help define the role of XRT as a supplement to permanent prostate brachytherapy.
Commentary (Sonoda): Fertility-Preserving Options for Cervical Cancer
April 17th 2006Childbearing is one of the most important life goals for many women, and fertility preservation is a very important factor in the overall quality of life of cancer survivors. Cervical cancer frequently affects young women; because some women tend to delay childbearing, fertility preservation must be considered when treatment options are discussed. Over the past decade, the radical trachelectomy procedure has become a well established fertility-preserving option for young women with early-stage cancer; this procedure is associated with low morbidity, good oncologic outcome, and a high proportion of pregnancies that reach the third trimester and babies that are delivered at term. This article will review available literature on the vaginal radical trachelectomy procedure and data from other surgical approaches, such as the abdominal radical trachelectomy. In addition, the potential future application of neoadjuvant chemotherapy followed by fertility-preserving surgery in patients with locally advanced cervical cancer will be examined. Finally, ultraconservative surgical approaches (eg, conization alone with or without laparoscopic lymphadenectomy) in very early-stage disease will be discussed.
Commentary (Papagikos/Lee): Permanent Prostate Brachytherapy
April 17th 2006Permanent prostate brachytherapy with or without supplemental therapies is a highly effective treatment for clinically localized prostate cancer, with biochemical outcomes and morbidity profiles comparing favorably with competing local modalities. However, the absence of prospective randomized brachytherapy trials evaluating the role of supplemental external-beam radiation therapy (XRT) has precluded the development of evidence-based treatment algorithms for the appropriate inclusion of such treatment. Some groups advocate supplemental XRT for all patients, but the usefulness of this technology remains largely unproven and has been questioned by recent reports of favorable biochemical outcomes following brachytherapy used alone in patients at higher risk. Given that brachytherapy can be used at high intraprostatic doses and can obtain generous periprostatic treatment margins, the use of supplemental XRT may be relegated to patients with a high risk of seminal vesicle and/or pelvic lymph node involvement. Although morbidity following brachytherapy has been acceptable, supplemental XRT has shown an adverse impact on long-term quality of life. The completion of ongoing prospective randomized trials will help define the role of XRT as a supplement to permanent prostate brachytherapy.
All-Star Panel Spells Out Onc Promises, Problems
April 1st 2006The decline in total cancer mortality in the United States that began in 2003 looks set to continue and even accelerate as more research moves "from bench to bedside"—unless the basic and translational science feeding that change is strangled by budget cuts and red tape, according to experts at the 11th Annual Conference of the National Comprehensive Cancer Network (NCCN).
Community Oncology Practices Struggle to Cope With the Extra Requirements of Medicare Part D
April 1st 2006Medicare Part D, the outpatient prescription drug plan that went into effect on January 1, is having a major impact on community oncology practices as they struggle to deal with widespread confusion as well as the extra requirements imposed by the private plans.
Assess Regularly for Treatment-Related Learning Problems
April 1st 2006Neuropsychologists play a key role in helping identify cognitive issues in childhood cancer survivors and in developing rehabilitation programs to increase their functioning, Lisa A. Jackson, PhD, said at the Cancer in the Classroom meeting hosted by Roswell Park Cancer Institute.
Liver Transplant Ups Survival in Hepatocellular Carcinoma
April 1st 2006Liver transplantation is lifesaving in patients with localized hepatocellular carcinoma, with some 75% of transplant recipients still alive 5 years later, compared with only 12% of other patients, finds the first large population-based study of this treatment for this disease.
AJN Releases Report on Care for Long-Term Cancer Survivors
April 1st 2006The American Journal of Nursing (AJN) recently released a consensus report based on the outcome of the invitational symposium, "The State of the Science on Nursing Approaches to Managing Late and Long-Term Sequelae of Cancer and Cancer Treatment," which took place in Philadelphia in July 2005. The report, which accompanied the March issue of AJN, offers action strategies and recommendations, from a nursing perspective, for addressing the health needs of the more than 10 million long-term cancer survivors alive today.
Commentary (Langer): Treatment of Stage I-III Non-Small-Cell Lung Cancer in the Elderly
April 1st 2006Elderly patients with stage I-III non-small-cell lung cancer (NSCLC) constitute a peculiar patient population and need specific therapeutic approaches. Limited resections are an attractive alternative for elderly patients with resectable NSCLC because of the potential reduction in postoperative complications. Curative radiation therapy is an acceptable alternative for elderly patients who are unfit for or refuse surgery. Hypofractionated stereotactic body radiation therapy is of particular interest for this population because of its favorable tolerance.
Commentary (Turrisi): Treatment of Stage I-III Non-Small-Cell Lung Cancer in the Elderly
April 1st 2006Elderly patients with stage I-III non-small-cell lung cancer (NSCLC) constitute a peculiar patient population and need specific therapeutic approaches. Limited resections are an attractive alternative for elderly patients with resectable NSCLC because of the potential reduction in postoperative complications. Curative radiation therapy is an acceptable alternative for elderly patients who are unfit for or refuse surgery. Hypofractionated stereotactic body radiation therapy is of particular interest for this population because of its favorable tolerance.
Treatment of Stage I-III Non-Small-Cell Lung Cancer in the Elderly
April 1st 2006Elderly patients with stage I-III non-small-cell lung cancer (NSCLC) constitute a peculiar patient population and need specific therapeutic approaches. Limited resections are an attractive alternative for elderly patients with resectable NSCLC because of the potential reduction in postoperative complications. Curative radiation therapy is an acceptable alternative for elderly patients who are unfit for or refuse surgery. Hypofractionated stereotactic body radiation therapy is of particular interest for this population because of its favorable tolerance.
FDA Guidances for Early Human Testing of New Drugs
March 1st 2006Officials at the National Cancer Institute have welcomed two new guidance documents issued by the FDA. The two aim at making it easier for clinical researchers to conduct small-scale human studies of exploratory drugs prior to phase I trials. The documents are designed to increase the number of promising drugs that researchers can evaluate by administering them at microdose levels to small numbers of patients before deciding whether the agents warrant further human study.
Inpatient Hem/Onc Unit Adds Phase I Clinical Trial Program
March 1st 2006When an adjacent hospital closed its research unit with cancer trials pending, the Arthur G. James Cancer Hospital, Ohio State Univesity, Columbus, successfully added a clinical study component to an existing hematology-oncology unit, to ensure that patients could enroll in phase I trials and receive the care they need during their enrollment.
North Shore-LIJ Opens $17 Million Monter Cancer Center
March 1st 2006The North Shore-Long Island Jewish (LIJ) Health System has opened its Monter Cancer Center, a $17 million, 37,000-square-foot facility that offers a spectrum of cancer services in a stunning outpatient setting, providing patients with a calming atmosphere complete with indoor gardens and skylights.
Unrelated CBTs Successful in Adult Acute Leukemia Pts
March 1st 2006Unrelated cord blood transplantation (UCBT) appears at least as effective as haploidentical T-cell-depleted peripheral blood stem cell transplantation (PBSCT) in adults with acute leukemia, with outcomes varying according to leukemia subtype, according to a retrospective analysis of European transplant patients.
Longer PFS With Maintenance Rituximab After CVP in FL
March 1st 2006In patients undergoing treatment for follicular lymphoma, (FL) maintenance rituximab (Rituxan) after a cyclophosphamide, vincristine, and prednisone (CVP) regimen appears to confer a survival benefit, Sandra Horning, MD, professor of medicine, Stanford University, said at the 47th Annual Meeting of the American Society of Hematology (abstract 349).
Clinical Care Doesn't End Post-treatment
March 1st 2006This case study illustrates some of the off-treatment issues your patients may face and provides some practical solutions to help patients overcome them whether you see them for regular follow-up or just receive an occasional phone call requesting assistance.
With Baby Boomers Aging, Medicare Financing System Must Be Restructured
March 1st 2006The Medicare program needs to be restructured if it is to remain solvent for the generation of baby boomers now reaching age 60. Since many cancer patients are Medicare beneficiaries, the health of the program is vital to the oncology community.