PET/CT uncovers cancer underlying neurologic disorders
February 9th 2010Cancer patients sometimes develop neurologic complications directly caused by their cancers. Sometimes, however, these disorders are due not to the growth of a cancer tumor but to cancer-fighting antibodies that mistakenly attack cells in the nervous system. PET/CT may help physicians tell the difference.
New genome project targets childhood cancers
January 25th 2010Some believed the unraveling of the human genome would lead overnight to the genetic tweaking of errant cells and the tailoring of treatments to patients. That dream’s time has not yet come, even a decade after the human genome was first sequenced. But the scientific community has made enormous progress in developing tools to examine the genome and their application. And those efforts may soon lead to practical results for mainstream oncology.
Four-drug regimen ups response, progression-free survival in older multiple myeloma patients
January 21st 2010More is better, at least when it comes to treatments for multiple myeloma. Studies from Spanish and Italian investigators showed that upfront use of four drugs improves durable responses and progression-free survival in elderly patients.
Cancer Chemotherapy in the Elderly Patient
January 15th 2010The management of older patients with cancer is historically challenging because of a lack of prospective data regarding the appropriate management of this population. In this review, we address some of the issues and challenges surrounding the treatment of older cancer patients, including the withholding of medically appropriate treatment based on chronologic age, the historical omission of elderly from clinical trials, and the impact of geriatric assessment, and age-related changes in pharmacokinetics and pharmacodynamics. Finally, we conclude by discussing the existing evidence related to cancer treatment in the elderly, focusing primarily on the malignancies most commonly seen in older patients, and making general treatment recommendations where applicable.
Chemotherapy in the Elderly: Further Considerations
January 15th 2010The review article by Drs. Gillison and Chatta represents a very nice overview of cancer chemotherapy in the older individual across a number of different tumor types. The authors correctly point out that it is very important to distinguish chronologic from physiologic age, and that older individuals have been historically underrepresented in cancer clinical trials. Many of the larger phase III clinical trials in this population are either not designed or not powered to look at individuals over the age of 70. Moreover, trials that do include older individuals often select for the most functional individuals with minimal competing comorbid conditions and often do not include or report secondary analysis that examines outcomes by age, health status, or a combination of both. As a result, health-care providers face challenges when communicating and selecting treatment options with patients and their companions.
Larger Questions About Chemotherapy in Older Patients
January 15th 2010Drs. Gillison and Chatta present an up-to-date review of the systemic treatments available to elderly patients with the most common types of cancer. The only point I might add in the context of their review is about recently reported, promising data on targeted therapies in acute leukemia patients. A large proportion of older patients have acute lymphocytic leukemia positive for a t(9;22) translocation (Philadelphia chromosome–positive ALL).
German researchers detail how metastatic cancer takes root in the brain
January 11th 2010As many as one in four cancer patients develop metastatic cancers of the brain. Existing therapies seldom do more than slow the disease. Adding to the urgency to find a way to prevent brain metastasis is the increasing number of such cases.
Cetuximab plus chemo boosts surgery in advanced colon ca
January 6th 2010Adding cetuximab (Erbitux) to neoadjuvant chemotherapy shrank tumors enough to increase the success of curative surgery in colon cancer patients with inoperable metastatic liver lesions, according to the CELIM trial conducted in Germany and Austria.
Radiosurgery gains role for noncancer applications
January 5th 2010Precise and noninvasive, stereotactic radiosurgery is proving a godsend to some noncancer patients: Its use for applications outside oncology-such as the treatment of movement disorders, arteriovenous malformations, and neuralgia-have been around almost since the commercial introduction of this technology. The noninvasive destruction of brain tumors dominates the use of this equipment, but alternate uses are picking up steam, according to Iris C. Gibbs, MD, an assistant professor of radiation oncology at the Stanford Cancer Center in California and codirector of the CyberKnife Radiosurgery Program at the Stanford Hospital and Clinics, where the CyberKnife was invented. “The results of studies with large numbers of patients help us get a sense of the factors that contribute to either the success or failure of these techniques,” Dr. Gibbs said.
Bone Biology and the Role of the RANK Ligand Pathway
December 30th 2009Bone renewal is essential for bone strength. During childhood and early adulthood, bone formation prevails over bone resorption, as bones increase in size and strength. Peak bone mass is achieved during the third decade in life, with a higher peak bone mass being protective against osteoporosis later in life.[1] Bone loss is most prominent in women at menopause due to the effects of a natural decline in estrogen levels. However, bone mass begins to decrease with age, and bone loss is most prominent in women at menopause due to the effects of a natural decline in estrogen levels.[2]
Micromet scores multiple development deals
December 29th 2009Micromet and Sanofi-aventis announced a global collaboration and license agreement to develop a BiTE antibody against a carcinoma cell antigen. Micromet will be responsible for the discovery, research, and development of the BiTE antibody through the completion of phase I clinical trials and under a joint steering committee’s supervision. Sanofi-aventis will have full responsibility for additional as well as worldwide commercialization of the BiTE antibody.
New agents for lymphoma take center stage
December 29th 2009From naked antibodies to arsenic-laced molecules to anti-survivin antibodies, three up-and-coming agents are potential standouts in the lymphoma treatment arsenal. SGN-35 is an immunoconjugate that could offer a novel approach to Hodgkin’s lymphoma therapy. Then there are darinaparsin, an organic arsenic molecule, and YM155, which may be able to restore normal apoptotic activity in advanced and aggressive lymphoma, respectively. Researchers working with these drugs discuss their studies and trials while hematologic experts offer some perspective on the future of these agents.
Oncology dodges CMS worst case scenario
December 28th 2009Oncology specialists heaved a sigh of relief in November, after analysts from ASCO and ASTRO concluded that the worst had, in fact, not happened. A 6% cut proposed last summer by the Centers for Medicare & Medicaid Services to affect medical oncology practice in 2010 under Medicare’s final physician fee schedule would instead be only 1%, according to an October announcement made by CMS.
Adjuvant Treatment After Orthotopic Liver Transplantation: Is It Really Necessary?
December 16th 2009This review summarizes the current data on efficacy and rationale of adjuvant treatment for hepatocellular cancer after orthotopic liver transplantation, as well as future prospects. No adjuvant treatment is currently advocated.
Hepatocellular Carcinoma: The Search for Innovative Adjuvant Therapies
December 16th 2009This review summarizes the current data on efficacy and rationale of adjuvant treatment for hepatocellular carcinoma (HCC) after orthotopic liver transplantation (OLT). The authors review prognostic factors for disease recurrence and adjuvant therapy after OLT, including systemic chemotherapy, intra-arterial chemoembolization, immunosuppressant effects, and sorafenib (Nexavar). Several interesting questions are raised in the article, including: (1) When is the best time to apply systemic chemotherapy?
Getting a Handle on Posttransplant Recurrence of HCC
December 16th 2009In this issue of ONCOLOGY, Kim et al discuss adjuvant therapy after liver transplantation to decrease recurrence of hepatocellular carcinoma (HCC). Liver transplantation offers the best overall and recurrence-free survival for the treatment of stage I and II HCC. The landmark study in 1996 by Mazzaferro demonstrated that liver transplantation of patients with one lesion less than 5 cm or with up to three lesions but all less than 3 cm (the Milan criteria) resulted in low recurrence rates and similar survival to patients without HCC.[1]