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Archive for June, 2011
Wednesday, June 29th, 2011
Pfizer pharmaceuticals has presented its new oral cancer treatment drug, crizotinib, for use on non-small cell lung cancer (NSCLC)—a group of diseases making up just 5% of all cancer cases. Developed to target tumors with genetic marker anaplastic lymphoma kinase (ALK), this new drug may be beneficial for treatment of pleural mesothelioma.
Pleural mesothelioma is a rare cancer of the mesothelium, the protective lining around the lungs. Once mesothelioma development begins, flat, wide tumors begin to spread in an irregular pattern through lung lining. Other treatments specific to NSCLC have aided in the fight against mesothelioma. ALK markers may be found in mesothelioma cells as well as lung cancer cells used in crizotinib testing.
Mesothelioma is caused by toxic chemical asbestos. Asbestos is typically found encased in another material, such as a building or construction component. However, after years of wear and tear, or in the case of sudden demolition, asbestos fibers can be released from the containing material, becoming a health and safety hazard.
Once asbestos fibers are inhaled they become lodged in the mesothelium—or in lining of other abdominal cavities such as the heart or diaphragm. This starts the cancerous growth process leading to malignant mesothelioma. Asbestos is considered a Type 1 carcinogen by the World Health Organization (WHO) and is regulated in many countries.
In Pfizer’s crizotinib tests, patients with advanced cancers experienced longer than average survival times after taking the new treatment. Two years and longer life expectancy is the average for just 20% of NSCLC patients; the expectancy dropping quickly between one and two years. 74% of those on crizotinib were alive after one year, and 54% after two years. This new drug could be a huge stride ahead in rare cancer treatment.
Mesothelioma is characterized by a life expectancy ranging from just six months to two years following diagnosis. Sadly, mesothelioma patients are typically developing the disease for twenty to fifty years before they notice symptoms. When symptoms to demonstrate they mimic those of bronchitis or pneumonia, making mesothelioma difficult to diagnose early.
Mesothelioma treatments are available. Standards include surgery, chemotherapy and radiation therapy. Often, these are administered in combination as palliative care to focus on pain management and to extend patient life expectancy.
About three thousand Americans suffer with mesothelioma each year, and the number worldwide is on the rise from twenty thousand annually as asbestos continues to be used. WHO estimates a quick increase to ninety thousand cases yearly around the world if asbestos use is not greatly curbed or stopped completely.
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Wednesday, June 22nd, 2011
Asian countries are currently responsible for 64% of the world’s asbestos use—a toxic carcinogen causing severe respiratory illnesses including rare cancer mesothelioma. According to World Health Organization (WHO) records, Asia is experiencing 13% of the world’s asbestos associated deaths. It is thought that thousands of mesothelioma cases and deaths are going unrecorded, causing such a gap between asbestos use and related mortality rates.
Asbestos is known for its fire resistance and durability. The last century saw asbestos rise to the top of industrial use—spreading it around the world in countless forms including insulation, plumbing components, roof sheets, floor and ceiling tiles. In spite of its ill health effects, asbestos continues to be mined, bought, sold and used globally.
Mesothelioma affects about twenty thousand people worldwide, a number that is on the rise. Mesothelioma cases are expected to greatly increase over the next decades as asbestos continues to be heavily used in developing countries; India alone employees over 100,000 people in asbestos products manufacturing plants. These facilities are not equipped with proper ventilation components, nor are employees provided with adequate safety gear to protect against inhalation of asbestos fibers.
Mesothelioma development is begun when asbestos fibers enter the lungs and become lodged in protective lung lining, called mesothelium. Tumors begin to grow and spread through surrounding areas without exhibiting sign or symptoms until decades later. Mesothelioma is characterized by this long latency period and a short life expectancy following diagnosis.
Although there are mesothelioma treatments available, there is no cure, and it is developing countries noted for such heavy asbestos use that lack medical facilities able to diagnose or treat mesothelioma. In light of the continued heavy use of asbestos in Asia, Ken Takahashi, director of a WHO occupational health group cautions Asian nations of a coming “asbestos tsunami.”
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Wednesday, June 15th, 2011
Karen Witney lost her husband, Andy, after his five-year battle with mesothelioma. Andy Witney, who worked on cars before his fight with mesothelioma began, underwent three separate drug trials in an effort to fight off the affects of mesothelioma and extend his life expectancy. After his long resistance to mesothelioma, Andy experienced extreme side effects after beginning a new treatment, and died just twelve days later. His widow suggests it was this last drug trial, and not the mesothelioma directly, that killed her husband.
Malignant mesothelioma affects about twenty thousand people around the world each year. Caused by exposure to toxic chemical asbestos, mesothelioma is characterized by a long latency period and a short life expectancy. Research continues for new treatments and a mesothelioma cure; for now treatment standards include surgery, chemotherapy and radiation therapy, none of which are considered curative.
Since her husband’s death, Mrs. Witney has campaigned for more thorough information to be made available to patients covering details of possible side effects related to new or trial treatments. Much to do with her determination, Oxford Radcliffe Hospitals Trust has recently published an informational pamphlet about the effects and risks of new treatments. Mrs. Witney is happy to see this outcome, but skeptical of its long-term value.
“I am extremely pleased that at last something concrete has appeared, but sadly a little skeptical as to how well the leaflet will be presented to trials patients,” Mrs. Witney said. She continued, “The reason for my skepticism is that this simple piece of paper has taken a ridiculously long time to produce and I feel it has been completed with some reluctance as I have been constantly fobbed off throughout this time.”
Mrs. Witney, who helped nurse her husband through his final days, is aware of the extreme pain and discomfort associated with mesothelioma, and added trauma this can cause patients and their loved ones. Mrs. Witney challenges UK health systems to aid in lessening pain and discomfort for all involved. “So many people suffer inadequate care within the NHS [National Health Service], not only patients but also dedicated nursing staff, due to poor management, an inability on the part of the decision makers to admit they are sometimes wrong, and the curtain of secrecy in which they like to cloak themselves when dealing with anything they find unpalatable, in the hope it will eventually disappear,” she said.
In conclusion of her fight to have more drug trial information available to patients, Mrs. Withney said, “I want to thank everyone at the Oxford Mail for the huge support they gave me at a time when I struggled to get up each morning let alone find the strength to battle with a pretty formidable opponent.”
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Wednesday, June 8th, 2011
Edward and Barbara Comer of Highland Springs, Virginia, are suing 143 companies for alleged negligence, conspiracy, misrepresentation and a host of other employment based wrongdoings. Filed in April, these actions followed one month after Edward Comer’s mesothelioma diagnosis. The Comers believe these 143 companies are responsible for exposing Edward to asbestos, the toxic carcinogen that causes mesothelioma development.
Mesothelioma is a rare cancer—about three thousand Americans are affected by it each year, and close to twenty thousand people worldwide. There are two types of mesothelioma. Pleural mesothelioma makes us about 80% of total cases, and affects lung-lining tissue. Peritoneal mesothelioma is less common and affects lining of other abdominal organs. Both types of mesothelioma are considered fatal.
Mesothelioma is characterized by a long latency period, similar to what Edward Comer experienced. Malignant mesothelioma often takes twenty to fifty years to develop to its final stage and demonstrate symptoms. Patients often have no idea they have mesothelioma until decades after asbestos exposure; and many have no idea they ere ever exposed to asbestos. Mesothelioma symptoms demonstrate as those of pneumonia and bronchitis, postponing diagnosis even longer.
The illusive characteristics of asbestos fibers and a general “don’t-ask-don’t-tell” attitude towards asbestos in the workplace of the past, has only added questions to studies of mesothelioma development. Mesothelioma’s long latency period complicated matters even more, making its cause, and any treatments options, something of a mystery. The last several decades, however, have witnessed a change in regulations and medical research associated with asbestos exposure and mesothelioma. The Environmental Protection agency works to protect the American public from toxic exposure, while scientists and medical experts endeavor for a cure.
Edward Comer believes he was exposed to asbestos during his twenty-four years as an insulator, form 1960 to 1984. Asbestos was used in the last century, not only as an insulation material, but also as an additive and stabilizer for countless other products present in homes, commercial buildings and equipment around the globe. Edward and Barbara are suing companies they believe to have been directly involved in Edward’s asbestos exposure—companies they suggest have knowingly or negligently withheld vital information or protection from Edward during his employment as an insulator.
To date, over 600,000 asbestos related cases have been filed—the first dating back to the 1920s. An estimated 200 to 250 million dollars have been spent on asbestos liabilities, with 1 to 3 million claimants involved.
Sadly, it will not end here. The Comers are joining an ongoing list of those affected by toxic asbestos. Until asbestos is completely banned worldwide, mesothelioma cases, and other asbestos-caused diseases, will be on the rise.
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Wednesday, June 1st, 2011
A Cicero, Illinois company has received some negative attention from Occupational Safety and Health Administration (OSHA); specifically, $1.2 million in asbestos related fines. Total fines include payment for 4 willful violations and 15 willful citations.
OSHA takes asbestos misuse and neglect seriously, as does Environmental Protection Agency (EPA), listing asbestos as a type 1 carcinogen. Asbestos is a toxic chemical found in many rock deposits thought the world. Mined and used heavily through the past century, asbestos is known for its fire resistance and durability. However, in the past few decades asbestos has also become known as the cause of mesothelioma, a rare cancer affecting respiratory system functions.
If asbestos fibers are inhaled they can become lodged in lung tissue, initiating mesothelioma development, a cancerous growth of malignant tumors. These tumors spread irregularly through lung lining or lining of other abdominal cavities, causing no visible signs for decades. Mesothelioma is characterized by this long latency period, lasting for twenty to fifty years. Once symptoms demonstrate, mimicking those of pneumonia or bronchitis, mesothelioma has become so aggressive that patient life expectancy averages only eighteen months.
Mesothelioma treatments are available and include surgeries, chemotherapy and radiation therapy. Often administered in combination, mesothelioma treatments tend to be palliative in nature, attempting to manage pain and extend patient life expectancy.
In response to the Illinois company’s misconduct, an OSHA news statement claimed, “…five unprotected and untrained workers allegedly were required to conduct asbestos removal exposing them to this cancer-causing material.” Asbestos abatement requires specific training and certification. While regulations and licensure may vary from state to state, OSHA and EPA objectives to protect public health and enhance American air quality are always in focus.
The OSHA statement additionally accuses the Illinois company of, “…failing to implement a respirator protection program; failing to use engineering controls and work practices for Class I asbestos work; not conducting asbestos work in regulated areas; and failing to provide hygiene facilities for workers removing the dangerous material.” The statement continued, “A serious violation occurs when there is substantial probability that death or serious physical harm could result from a hazard about which the employer knew or should have known.”
According to tests done at the site in question, materials being used contained 20 – 50% asbestos, a high toxicity level. Until asbestos exposure, both intentional and accidental, is completely stopped, mesothelioma cases are expected to rise worldwide. With a latency period of several decades, mesothelioma cases and other asbestos related diseases might continue to multiply before peaking.
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