Oxygen therapies are expensive, unproven, and harmful alternatives promoted in appealing and convincing ways for the treatment of cancer and other major diseases. Supporters claim that low levels of oxygen enable cancer cells to thrive and that an oxygen-rich environment destroys them. However, these claims are unsubstantiated. Further, numerous reports of serious complications and fatalities have been reported from the use of oxygen therapies.
On November 20, 2008, the US Food and Drug Administration (FDA) granted accelerated approval for eltrombopag (Promacta Tablets, GlaxoSmithKline) for the treatment of thrombocytopenia in patients with chronic immune thrombocytopenic purpura (ITP) who have had an insufficient response to corticosteroids, immunoglobulin therapy, or splenectomy.
Surgical intervention for mesothelioma has become widely accepted, but controversy persists: Should surgery be the standard of care or should it be offered only to select patients? According to scientific literature, surgery decreases morbidity and mortality while also improving outcomes compared with adjunctive therapy alone.
Radiofrequency ablation can decrease disease progression in patients with dysplastic Barrett esophagus, or metaplasia of the espophageal epithelium, according to a study out of the University of North Carolina in Chapel Hill. The researchers also found that the technique eradicated dysplasia and intestinal metaplasia.
MINNEAPOLIS-When it comes to taking stock of an oncology practice’s productivity, less is more. It benefits a practice to develop a few meaningful benchmarks rather than multiple overlapping, overwhelming, and meaningless measurements.
Precise 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.
A review article asserting breast MRI does not improve surgical planning, reduce follow-up surgeries, or reduce the risk of local recurrences drew the ire of the breast imaging community.
The incidence of later-stage breast cancer has not kept pace with a substantial increase in diagnosed breast cancers, an increase achieved largely by the use of better imaging equipment and a nearly 70% screening rate among women 40 years and older. This fact, underscored in a special communication in the Journal of the American Medical Association, pokes holes in the widely held public belief that early diagnosis will prevent the majority of breast cancer deaths.
News summary of the discussion about when routine mammography screening for breast cancer should begin
Owen Witte, MD, has been a California resident for nearly 35 years, but there’s nothing laid-back about him. The director of the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research retains the rapid fire speech of a native New Yorker. Although it was getting toward late afternoon when Dr. Witte met with Oncology News International, he ushered a steady stream of visitors into and out of his office at the University of California, Los Angeles. When he spoke about his work, it was with the same energy that no doubt drew him to science in the first place.
Scientists in New Mexico are experimenting with a nanotechnology device that quantifies the amount of nanoparticle-bound tumor cells in a tissue sample and offers increased sensitivity to minimal residual disease (Cancer Res 69:6839-6847, 2009).
An investigator at Fred Hutchinson Cancer Center in Seattle has earned a $1.74 million grant under the American Recovery & Reinvestment Act of 2009.
Despite the hubbub, breast imaging researchers saw nothing new in the findings of Dr. Esserman’s group. Daniel Kopans, MD, a professor of radiology at Boston’s Massachusetts General Hospital, called her observation about mammography catching nonlethal cancers but missing aggressive ones “a fundamental concept that is older than I am. Mammography saves lives by finding moderate- and slow-growing cancer that will kill in five or more years without diagnosis and treatment,” according to Dr. Kopans.
Cannabinoids, which are a byproduct of marijuana smoke, have been recognized to have potential antitumor properties, but evidence of a relationship between marijuana use and the induction of head and neck squamous cell carcinoma has been inconsistent.
Head and neck patients who undergo surgery first are more likely to complete radiation therapy, according to Seattle-based researchers. Megan Dann Fesinmeyer, PhD, MPH, and colleagues noted that radiation dose and treatment duration correlated with tumor control and survival, but that breaks in radiotherapy have been associated with inferior tumor control.
Prometheus Laboratories has launched the ProOncDx line of cancer diagnostic tests. ProOncDx TumorSource pinpoints the tissue of origin in metastatic tumors in a number of cancers including breast, brain, kidney, colon, liver, ovary, lung, pancreas, and prostate. The test measures the expression level of 48 microRNA biomarkers
Researchers had identified a small molecule that inhibits the heat shock protein HSP70. They also demonstrated in their animal experiment that the HSP inhibitor could stop tumor formation and significantly extend survival.
An analysis by researchers at the University of Michigan Comprehensive Cancer Center shows that costs vary widely for different treatment regimens and from one delivery method to another. Yet receiving more treatments and spending extra on more sophisticated technology may do little good, at least when it comes to pain relief.
CHICAGO-Accuray introduced the CyberKnife VSI System. The system is designed to also include conventionally fractionated robotic intensity-modulated radiation therapy.
Rasburicase (Elitek) has been granted FDA approval for the initial management of plasma uric acid (PUA) levels in adult patients with leukemia, lymphoma, and solid tumor malignancies.
Native to India, boswellia is used extensively in Ayurveda, the traditional medical system of India, to treat arthritis. Extracts from the gum resin of boswellia have been tested in clinical trials and found effective for asthma and ulcerative colitis. More research is needed to determine if boswellia can benefit those with osteoarthritis. Boswellic acid has been found to display antitumor activity in bladder, cervical, and other cancer cell lines as well as anti-inflammatory activity.
Oncology is gaining ground on several fronts, thanks in large part to increased sophistication in the technology of cancer therapeutics, but also in how those technologies are applied.
Data published in the Journal of Clinical Oncology show that patients with advanced neuroendocrine tumors (NET) of the midgut who were treated with octreotide acetate (Sandostatin LAR Depot) experienced a 66% reduction in risk of disease progression vs placebo.
Sanofi-aventis US announced that the US Food and Drug Administration (FDA) has granted marketing approval for rasburicase (Elitek) to be used for the initial management of plasma uric acid (PUA) levels in adult patients with leukemia, lymphoma, and solid tumor malignancies who are receiving anticancer therapy expected to result in tumor lysis syndrome (TLS) and subsequent elevations of plasma uric acid.
Cancer killed a 14-year-old girl who died shortly after being given Cervarix as part of a national immunization program. Early reports speculated that there may have been a link between the shot and her death, but according to a coroner’s assessment, there was no indication that the culprit was the HPV vaccine, which is marketed by GlaxoSmithKline. The girl’s death was caused by malignant disease in the heart and lungs, according to the coroner’s report.
Obesity may contribute to chemotherapy resistance and increasing relapse rates among children with leukemia, an animal study in Cancer Research (online, September 22, 2009) suggests.
The incidence of pneumonia and invasive pulmonary aspergillosis in acute myeloid leukemia patients was reduced when they were given posaconazole (Noxafil) as prophylaxis.
A coalition of international cancer experts is warning that the global cancer burden will double over the next two decades with an increasing concentration of cases in low-income and middle-income countries.
Use of antidepressants, particularly selective serotonin reuptake inhibitors and possibly tricyclic antidepressants, is associated with a reduced risk of colorectal cancer, according to research by the Group Health Research Institute in Seattle. But it’s too soon to make specific recommendations on how to harness this potential value of these drugs in cancer prevention.
A new class of cancer alpha-pharmaceuticals is approaching the marketplace, one built around the basis of radiotherapy itself. An isotope of radium, the element discovered more than a century ago by Pierre and Marie Curie, is the cornerstone of this new class of radiopharmaceuticals.