Commentary (Fanale/Hortobagyi): Bisphosphonates in the Prevention and Treatment of Bone Metastases
September 1st 2003Drs. Ramaswamy and Shapiropresent a timely and comprehensivereview of the potentialuses of bisphosphonates and theirindications in the prevention and treatmentof bone metastasis. The reviewprovides a concise summary of thepathophysiology of skeletal metastasesand describes emerging biologicprinciples that open the door for novel,highly targeted therapeutic interventions.It is generally accepted thatrelative osteoclast hyperactivity resultsin excess bone resorption, which isthe basic process behind bone metastasis,osteoporosis, and hypercalcemiaof malignancy. Osteoprotegerin,the receptor activator of nuclear factor–kappa B (RANK), and the kappa Bligand (RANK-L) have critical rolesin osteoclastogenesis. In addition,parathyroid hormone–related proteinalso plays a major role in osteoblastactivation and production of RANKLas well as terminal osteoclast differentiationand activation.
Commentary (Hillner): Bisphosphonates in the Prevention and Treatment of Bone Metastases
September 1st 2003In this issue, Ramaswamy and Shapiroprovide another excellent reviewof the recent literature on therole of bisphosphonates in the managementof bone metastases frombreast cancer and selected other cancers.Bisphosphonates and bone metastaseshave been the subject ofnumerous similar publications. In aquick Medline search of papers publishedsince January 2002, I found 12different review articles including asimilar manuscript in this journal.[1]
Bisphosphonates in the Prevention and Treatment of Bone Metastases
September 1st 2003Bisphosphonates have an established role in treating tumor-inducedhypercalcemia and decreasing the incidence of skeletal-related events.Recent data suggest that these agents may also prevent skeletal metastases.This review explains how cancer metastasizes to bone and howbisphosphonates may block this process, with a summary of clinicaltrials supporting the use of bisphosphonates to treat and prevent bonemetastases. For skeletal metastases in patients with breast cancer,multiple myeloma, or other solid tumors, bisphosphonates are importantadjuncts to systemic therapy. Despite promising results in metastaticprostate cancer, additional trials are needed before bisphosphonatesbecome part of standard treatment in this setting. Ongoing trials areevaluating the preventive role of the third-generation bisphosphonatesin breast cancer patients. Until the results of these trials are presented,bisphosphonates should only become a component of adjuvant treatmentin the context of a clinical trial. Bone loss, a common consequenceof cancer treatment, should be treated with the usual measures indicatedfor the management of osteoporosis, including bisphosphonates.
Bexxar Approved for Relapsed/Refractory NHL
August 1st 2003ROCKVILLE, Maryland-Bex-xar (tositumomab and iodine I-131 tositumomab) has received FDA approval for the treatment of patients with CD20-positive follicular non-Hodgkin’s lymphoma (NHL), with and without transformation, whose disease is refractory to rituximab (Rituxan) and has relapsed following chemotherapy. Bexxar will be co-marketed in the United States by Corixa Corporation, Seattle, and GlaxoSmith-Kline, Philadelphia.
Options Explored for Treating Patients With Recurrent Colorectal Cancer Following IFL Therapy
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Recently Released Data Show Benefits of FOLFOX4 Extend to Adjuvant Setting
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Multinational Trial Supports Use of Capecitabine Plus Oxaliplatin for Metastatic Colorectal Cancer
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Capecitabine/Oxaliplatin Combination Reduces Treatment Costs in Metastatic Colorectal Cancer
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Capecitabine Has Unique Qualities That May Make It A Suitable Substitute for 5-FU
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Improved Safety Profile of Capecitabine as Adjuvant Therapy Mirrors Metastatic Setting
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
‘FOLFOX Should Be Considered as First-Line Standard of Care Over IFL or IROX’
August 1st 2003This special supplement to Oncology News International includes 28 reportswith updated information on clinical trials investigating capecitabine and other agents inthe treatment of advanced colorectal and breast cancers, and other solid tumors.The reports summarize selected presentations from the 39th Annual Meeting of theAmerican Society of Clinical Oncology (ASCO) and related educational symposiaheld in conjunction with ASCO.
Treatment of Complications After Breast-Conservation Therapy
August 1st 2003Over the past 2 decades, breast-conservation therapy with lumpectomyand whole-breast radiotherapy has become a standard option for themajority of women with newly diagnosed breast cancer. Long-term localcontrol is achieved in approximately 85% of patients, and the therapy isgenerally well tolerated. There can, however, be long-term effects on thebreast and other nearby tissues that may range from asymptomaticfindings on examination to severe, debilitating problems. Infection, fatnecrosis, and severe musculoskeletal problems such as osteoradionecrosisor soft-tissue necrosis are uncommon, affecting less than 5% ofpatients. However, changes in range of motion, mild-to-moderate musculoskeletalpain, and arm and breast edema are much more common.As more women choose breast-conservation therapy for management oftheir breast cancer, physicians will encounter these problems, as well asin-breast tumor recurrence, with greater frequency. This review willfocus on the incidence, contributing factors, and management of thelate problems of infection, fat necrosis, musculoskeletal complications,and local recurrence following breast-conservation therapy.
Commentary (Mendenhall): Treatment of Complications After Breast-Conservation Therapy
August 1st 2003Breast-conserving therapy maywell be the best-studied therapyin all of medicine, with dataavailable from seven mature prospectiverandomized trials that comparedoutcomes with the “gold standard” ofablative mastectomy, as well as datafrom specific programs across thecountry and globe, reflecting a broadrange of clinical and technical skillsand philosophic and technical variationson the theme of breast-conservingtherapy. However, relatively littlehas been published on the late effectsof this therapy. Frassica et al havedone an excellent job of producing adescriptive catalog of the majority ofpotential late effects in patients whosurvive breast-conserving therapy,complete with suggestions regardingmanagement.
Commentary (Deutsch): Treatment of Complications After Breast-Conservation Therapy
August 1st 2003Sequelae that affect quality of lifein women following breastconservationtherapy can begrouped into three categories: (1) thosethat affect cosmesis such as skinchanges, distortion, and asymmetry ofthe breasts; (2) those that cause physicalsymptoms such as local pain, decreasedmobility of the ipsilateralshoulder, and in extreme cases, respiratoryand cardiovascular impairments;and (3) those that require furthertreatment such as breast infection andabscess, arm edema, soft-tissue andbone necrosis, rib fractures, in-breasttumor recurrence, and second malignancieswithin the treated area.
Commentary (Fowble): Treatment of Complications After Breast-Conservation Therapy
August 1st 2003The adverse effects of cancertreatment can be divided intothree groups: those that aresignificant and life-threatening, thosethat are not life-threatening but resultin lifestyle changes, and those that areof minor severity and limited duration.The potential significant and lifethreateningeffects of radiation in thetreatment of breast cancer includecardiac toxicity and carcinogenesis.Two prospective randomized trials ofbreast-conserving surgery and radiationhave demonstrated no increase inthe risk of non–breast cancer death at20 and 25 years among patients whoreceived radiation compared to thosetreated by mastectomy.[1,2]