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Frontline Cancer: vaccines for HPV near guarantee

Source: www.lajollalight.com Author: Dr. Scott Lippman Dear Scott: “Our son, who is 25, went to the GP yesterday and his doc wasn’t sure about giving the Gardasil I had been bugging him to get. Didn’t you tell me about the benefits of the HPV vaccination?” The note was from a friend. It was personal, but also a topic of wide public interest and one that remains much discussed among cancer researchers and physicians. That’s why I’m answering my friend here. Roughly 12 percent of all human cancers worldwide — more than 1 million cases per year — are caused by viral infections (called oncoviruses) and attributed to a relatively small number of pathogens: human papilloma virus (HPV), hepatitis B virus (HBV), hepatitis C virus (HCV) and Epstein-Barr virus (EBV). Given the emphasis upon other causal factors of cancer, such as genetic mutations or environmental sources, it’s a statistic that’s not well known nor, I would argue, fully appreciated. Human viral oncogenesis is complex, and only a small percentage of the infected individuals develop cancer, but that 12 percent translates into more than 500,000 lives lost each year to virus-caused malignancies. Many of those deaths are preventable because effective vaccines already exist for HPV and HBV. Right now. No future discoveries required. I want to specifically talk about the HPV vaccine. Controversy has constrained its proven effectiveness as a public health tool, but if used as prescribed, the HPV vaccine could essentially eliminate cervical and other HPV-caused cancers. Infection with HPV [...]

Troisi: Raising age on tobacco purchases would protect Texas children

Source: www.mystatesman.com Author: Catherine Troisi Tobacco products are a known cancer-causing agent and responsible for one in three cancer deaths. Smoking kills more people than alcohol, AIDS, car crashes, illegal drugs, murders and suicides combined — and thousands more die from smoking-related causes such as fires caused by smoldering cigarettes. E-cigarettes, often touted as a safer alternative, have not been well-studied and may contain unknown poisons. We are not protecting our children from this danger. Unlike alcohol sales, where you have to be 21 years to purchase legally, adolescents and young adults 18 and over can purchase tobacco products. While the Texas Legislature wisely raised the age to buy e-cigarettes from 14 to 18 years last year, it’s time to look at raising the legal age for all tobacco products to 21. The problem is not just those age 18 and older smoking. This young legal age to purchase makes it easier for children under age 18 to get access to cigarettes and other products. Each year, 19,000 Texas children under the age of 18 start smoking. In Texas, almost one out of every six high school students smokes — and over their lifetime, half a million Texans who started smoking under age 18 will ultimately die of tobacco-related diseases. Most of us have someone in our family or know someone who has been affected by a tobacco-related disease. A colleague lost both parents and his only sibling as a result of smoking that began when they were teens. Each [...]

Checkpoint inhibitors seen to show potential of immunotherapy in several cancer studies

Source: immuno-oncologynews.com Author: Magdalena Kegel Several new checkpoint inhibitors — a class of immunotherapy drugs used in cancer — continue to show beneficial effects in numerous cancer types, according to data presented at the recent American Association for Cancer Research Annual Meeting in New Orleans. Investigated checkpoint inhibitors confirmed earlier results showing evidence of efficacy in melanoma, and also suggested that this class of immunotherapies, which trigger a person’s immune system to attack cancer, might work in patients suffering from certain head and neck cancers. One of the studies, CheckMate-141, exploring the checkpoint blocker nivolumab (Opdivo) in patients with squamous cell carcinoma of the head and neck, was stopped early after 36 percent of the 361 patients survived for one year — an increase of more than 100 percent compared to patients receiving other treatments. Squamous cell carcinoma is usually treated with platinum-based chemotherapy, but the effects are often temporary as the cancer tends to return. Moreover, patients who fail to fully recover after chemotherapy are generally resistant to further treatment. Maura Gillison from Ohio State University, who presented the CheckMate-141 data, said that no effective treatments have been approved for patients with this kind of cancer in over a decade. “I’ve treated head and neck cancers for more than twenty years, and this is the first time I’ve had a drug to go to for patients that have become resistant to first-line treatment,” she said in a press release. Dr. Emma King, a Cancer Research UK-funded head and neck [...]

Researchers link hepatitis C virus to head and neck cancers

Source: lymphomanewstoday.com Author: Magdalena Kegel A study from The University of Texas MD Anderson Cancer Center shows the hepatitis C infection, previously linked to liver cancer and non-Hodgkin’s lymphoma, is associated with cancers of the head and neck — a finding that could have immediate implications in how hepatitis-infected patients are screened, and how head and neck cancer patients are treated. Hepatitis C affects as many as 1.5 percent of the U.S. population, making it the most common blood-borne disease in the country, with an estimated 3.9 million having the chronic infection. This number skyrockets to a whopping 130 million to 150 million when considering the global population. New antivirals with few side effects have, however, made it possible to cure up to 90 percent of all hepatitis C patients. The study, “Association Between Hepatitis C Virus and Head and Neck Cancers,” was performed at an MD Anderson clinic focusing on the unmet medical needs of patients with hepatitis C. The clinic opened in 2009, and to date remains the only hepatitis-focused clinic among comprehensive cancer centers in the U.S. “Obviously, a hepatitis C infection could impact how patients respond to their cancer therapy. We also realized that many of our hepatitis patients were excluded from clinical trials. Now that many with hepatitis C can be cured, it is important that we first address and potentially cure the virus, so that they can have access to necessary cancer therapy,” said senior author Harrys A. Torres, in a press release. The [...]

BMS gets US breakthrough status for head & neck cancer

Source: pharmatimes.com Author: Selina McKee US regulators have awarded Bristol-Myers Squibb’s immunotherapy Opdivo a breakthrough designation for the potential indication of recurrent or metastatic squamous cell carcinoma of the head and neck (SCCHN). The move, which should help expedite the drug’s development and review, comes after preliminary clinical evidence indicated it could offer a substantial survival benefit to patients with the condition who have already received platinum-based therapy. A first look at the data from the Phase III CheckMate-141 trial, stopped early in January 2016 after meeting its primary endpoint of overall survival, showed that patients treated with Opdivo (nivolumab) experienced a 30 percent reduction in the risk of death compared to the investigator’s choice of therapy (methotrexate, docetaxel, or cetuximab), with a median overall survival of 7.5 months versus to 5.1 months. Safety signals were also looking good, with treatment-related adverse events (TRAEs) of any grade occurring in 58.9 percent of patients on Opdivo versus 77.5 percent of patients on investigator’s choice. Grade 3-4 TRAEs were reported in 13.1 percent of patients on Opdivo compared to 35.1 percent taking the investigator's choice, while two drug-related deaths were reported as related to Opdivo (pneumonitis and hypercalcaemia), and one Grade 5 event of lung infection in the comparator arm. The findings are particularly pertinent given the particularly bleak outlook for patients whose disease has progressed after platinum therapy and lack of systemic therapies to improve survival, and thus significant unmet medical need for new options. Head and neck cancer is the [...]

Chemotherapy + radiation may improve survival for some elderly

Source: journals.lww.com Author: Carlson, Robert H., Oncology Times Because the toxicity of concurrent chemoradiation is greater than radiation therapy alone for definitive head and neck cancer treatment, many clinicians have reservations about offering chemoradiotherapy for elderly head and neck cancer patients. But a new study shows that combining chemotherapy with radiation therapy improves survival rates for those head and neck cancer patients ages 71 to 79 years who have low comorbidity scores and advanced disease stage, with survival rates similar to that of younger patients. The study, which used data from the National Cancer Data Base (NCDB), suggests elderly patients are being underrepresented in prospective clinical trials that have defined standards of care for head and neck cancer. “In the era of improved radiation techniques, improved systemic therapy, and better supportive care, we found that chemoradiotherapy does, in fact, improve survival for a large segment of this population,” said Sana Karam, MD, PhD, Assistant Professor of Radiation Oncology at the University of Colorado School of Medicine in Aurora, and senior author on the study.“ "These findings challenge historical data demonstrating no benefit of chemoradiotherapy for patients older than 70 years,” Karam said. The study was presented at the 2016 Multidisciplinary Head & Neck Cancer Symposium, sponsored by the American Society for Radiation Oncology (ASTRO) and the American Society of Clinical Oncology (ASCO). First author is Arya Amini, MD, a fourth-year resident in the Department of Radiation Oncology at the University of Colorado School of Medicine. Before the meeting, Karam discussed [...]

Hepatitis C Virus strongly linked to head and neck cancer: study

Source: www.techtimes.com Author: Deepthi B, Tech Times People infected with the Hepatitis C virus (HCV), one of the most common blood-borne virus infections, are more prone to developing particular types of head and neck cancer, according to a new study. Researchers from the Univerity of Texas MD Anderson Cancer Center have revealed that HCV-infected people are at a higher risk of developing these cancers by around two to five times more than those without the Hepatitis C infection. "What we are trying to make all understand is that this is an infection that has consequences – and it's an infection we can cure," said Dr. Harrys Torres, lead author and an associate professor of infectious diseases at the university. Torres further explained that the Hepatitis C infection is easily curable and that over 90 percent of the HCV-related cases can be cured without any trouble simply by taking antiviral drugs, although they are expensive. Also, it is recommended that people should ensure timely screenings and appropriate treatment for HCV, as this can considerably prevent the condition from developing in the body. Hepatitis C appallingly affects more than 3.5 million Americans, according to the U.S. Centers for Disease Control and Prevention. Sadly, several of them are not even aware that they are infected with the virus. For the purpose of the study, researchers examined medical records from over 34,500 patients tested for HCV at the cancer center from 2004 to 2014. The researchers discovered that patients suffering from hepatitis C seemed [...]

Study supports immunotherapy/radiation combo in head and neck cancer

Source: www.onclive.com Author: Laura Panjwani There may be potential synergy between radiation therapy, given with or without chemotherapy, and immune checkpoint inhibitors in patients with squamous cell carcinoma of the head and neck (SCCHN), according to results of a prospective study. The study, which was presented at the the 2016 Multidisciplinary Head and Neck Cancer Symposium in February 2016, examined blood samples from 16 consecutive patients with SCCHN undergoing curative-intent radiation therapies. Samples were obtained at week 1 and week 6 to 7. Patients received a median of 70 Gy for disease in the oropharynx (n = 12, 75%), nasopharynx (n = 2, 12%), larynx (n = 1, 6%), or oral cavity (n = 1, 6%). The majority of patients had stage IV disease that was metastatic to regional lymph nodes and received concurrent platinum-based chemotherapy. The analysis found that, during radiation treatment, circulating CD8-positive T-effector cells increased (P = .01), as did CD4-positive PD-1–positive cells (P = .02), CD8-positive LAG3-positive cells (P = .02), and regulatory T cells (P = .04). sPD-L1 levels also increased, mirroring increases in CD8-positive T cells over the course of therapy (P = .047). While the extent to which these systemic changes reflect changes in the tumor microenvironment is unknown, the study authors noted that these findings support the “complex immunologic effects of fractionated chemoradiation therapy and mechanisms for potential synergy between chemotherapy, radiation treatment, and immunotherapy in SCCHN.” To learn more about the impact of the research, OncLive spoke to one of the [...]

Forgotten patients: New guidelines help those with head-and-neck cancers

Source: www.fredhutch.org Author: Diane Mapes and Sabrina Richards Stigma, isolation and medical complexity may keep patients from getting all the care they need; recommendations aim to change that. Like many cancer patients, Jennifer Giesel has side effects from treatment. There’s the neuropathy in her hands, a holdover from chemo. There’s jaw stiffness from her multiple surgeries: an emergency intubation when she couldn’t breathe due to the golf ball-sized tumor on her larynx and two follow-up surgeries to remove the cancer. And then there’s hypothyroidism and xerostomia, or dry mouth, a result of the 35 radiation treatments that beat back the cancer but destroyed her salivary glands and thyroid. “I went to my primary care doctor a couple of times and mentioned the side effects,” said the 41-year-old laryngeal cancer patient from Cleveland, who was diagnosed two years ago. “She was great but she didn’t seem too knowledgeable about what I was telling her. She was like, ‘Oh really?’ It was more like she was learning from me.” Patients like Giesel should have an easier time communicating their unique treatment side effects to health care providers with the recent release of new head-and-neck cancer survivorship guidelines. Created by a team of experts in oncology, primary care, dentistry, psychology, speech pathology, physical therapy and rehabilitation (with input from patients and nurses), the guidelines are designed to help primary care physicians and other health practitioners without expertise in head-and-neck cancer better understand the common side effects resulting from its treatment. The goal is [...]

Increased frequency of unknown primary SCC linked to HPV–positive disease

Source: www.healio.com Author: staff The occurrence of HPV–positive unknown primary squamous cell carcinoma of the head and neck has significantly increased in recent years, according to the results of a retrospective study. HPV–positive unknown primary squamous cell carcinoma (UPSCC) appeared most prevalent among younger men. UPSCC of the head and neck is comparatively rare, accounting for approximately 4% of squamous cell carcinomas. Trends, frequency and detection rates of UPSCCs have not been studied in the context of HPV tumor status. Carole Fakhry, MD, MPH, associate professor of oncology and otolaryngology–head and neck surgery at Johns Hopkins School of Medicine, and colleagues conducted a retrospective study to observe the frequency of UPSCC over time, and to evaluate the proportion of UPSCCs that are HPV positive. Researchers accessed a case series of 84 patients (mean age, 57.3 years; range, 29-80; 88.1% men) with UPSCC treated at Johns Hopkins Hospital between January 2005 and June 2014. They determined HPV tumor status through p16 immunohistochemical analysis or through high-risk HPV DNA in situ hybridization, when clinically available. The researchers observed an increase in the frequency of UPSCC over time (P for trend = .01). The trend appeared significantly higher during the most recent calendar periods (14 cases during 2005-2008 vs. 39 cases during 2012-2014; P = .03). A total of 90.7% of patients (n = 69) had HPV–positive tumors. These patients appeared more likely to be men (91% vs. 42.9%; P = .005) and younger (56.1 years vs. 67.7 years; P = .002) than [...]

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