The Institute

Thursday, November 29, 2012

Ground-breaking Liver Cancer Treatment NOVEMBER 26, 2012 BY CLAIRE AL-AUFI


Surgeons in the UK have pioneered a new treatment for cancer that is both unique and promising. The treatment involved isolating a cancerous liver by cutting off its blood supply and at the same time, dousing the organ with a “chemo bath.”
The procedure enables saturation of the tumours with chemotherapy while restricting the effects solely within the infected organ. Brian Stedman, is the consultant radiologist at Southampton General Hospital, who led the team that used the procedure, known as Chemosaturation with Percutaneous Hepatic Perfusion (CS-PHP). There were two patients who underwent the operation because their livers had become cancerous.
A cancerous liver is one where mutated cells grow and take over healthy cells. It is called primary liver cancer if it begins there, but metastatic if it spreads from outside, as with eye melanoma. Around 21, thousand Americans contract primary liver cancer every year. It is unusual in being a cancer on the increase. There are no obvious symptoms, which makes early diagnosis a matter of luck rather than screening. Men are two times more likely to suffer from it than women.
chemosaturation liver cancer Ground breaking Liver Cancer Treatment
Symptoms to be aware of with advanced stage liver cancer might include tiredness, abdominal bloating, pain high up on the right of abdomen, in your back or shoulder area. Also nausea, loss of appetite, feeling full while losing weight, weakness, fever, and yellowing of the eyes and the skin.
This new CS-PHP treatment was developed in Europe and used successfully in America, Germany, Ireland, Italy and France. A study published in the spring, out of the Moffitt Cancer Center in Tampa, reports that the cancer sufferers that underwent the procedure lived five times longer than patients who underwent traditional treatment.
There are several cancers that invade the liver from original tumors in other organs. Melanoma of the eye is one such. Cancer of the liver is virtually untreatable and four months is the average longevity with only 10% of sufferers living past a year.
CS-PHP significantly adds to the life of melanoma patients while improving the quality of life since the disease progresses no further. The chemotherapy cocktails are infused straight into the liver using a catheter. Blood in the veins, that normally would enter the liver, is diverted and filtered through a purpose made, ‘double-balloon’ catheter to remove all traces of the drug before returning to the organ.
The new methodology enables higher concentrate drugs to be targeted on the liver. It gives maximum impact with minimum ‘collateral damage’. Dr. Stedman comments on the technique,
”To cut off an organ from the body for 60 minutes, soak it in a high dose of drug and then filter the blood almost completely clean before returning is truly groundbreaking.”
He contrasted the new and more traditional treatments where the prognosis for sufferers is dire because of the awful side effects of even low concentrate chemotherapy that wreaks havoc on the whole body. There are possibilities for CS-PHP to be used as a treatment method for other tumors such as in the colon or breast.

Thursday, November 22, 2012

Novartis drug helps patients with rare inflammatory diseases


FMF, TRAPS are rare diseases
* Drug reduced attack frequency by 50 pct in FMF patients
* Relieved symptoms in TRAPS patients for average 3 months
ZURICH, Nov 11 (Reuters) - Novartis' Ilaris helps reduce patients' symptoms and the frequency of attacks in two rare inflammatory diseases, mid-stage studies showed, as the Swiss drugmaker looks to expand the use of the medicine.
Results of two separate studies on Sunday in patients with Familial Mediterranean Fever (FMF) and TRAPS - rare genetic diseases which can cause fever, rash and joint pain - both met their primary endpoints, Novartis said in a statement.
Both studies are being presented at the American College of Rheumatology (ACR) meeting in Washington D.C.
Ilaris or ACZ885, which blocks a protein called interleukin-1 beta that is thought to increase inflammation, is already sold for treating cryopyrin-associated periodic syndromes, a rare inflammatory disorder.
Novartis is also hoping to file the drug this year for regulatory approval in systemic juvenile idiopathic arthritis (SJIA), a debilitating disease that can affect a child's growth.
Results of the phase II study showed the drug helped 100 percent of FMF patients reduce the frequency of attacks by at least 50 percent during three months of treatment.
Eight of the nine patients in the trial did not have an attack during the three months and blood markers of inflammation also normalised.
There are currently no approved treatments for FMF or TRAPS, rare genetically-inherited anti-inflammatory diseases, which can affect both children and adults.
Novartis is hoping to show the drug can be beneficial in treating rare inflammatory diseases after receiving a setback last year when U.S. health regulators rejected Ilaris for use in gout over concerns about side effects.
New data from a mid-stage study on the use of Ilaris in TRAPS showed that patients who came off therapy after being treated with the drug did not have a relapse for three months on average.
Earlier data from the study showed that 90 percent of patients experienced a significant improvement in symptoms after just one week of treatment with Ilaris. This rose to 95 percent after two weeks. (Reporting by Caroline Copley; Editing by Elaine Hardcastle)

Saturday, November 17, 2012

New Study Uses Animal Model Similar To Humans And Shows BPA Can Affect Thyroid Function Main Category: Endocrinology Also Included In: Pregnancy / Obstetrics; Public Health Article Date: 16 Nov 2012

In utero exposure to bisphenol A (BPA) can be associated with decreased thyroid function in newborn sheep, according to a recent study accepted for publication inEndocrinology, a journal of The Endocrine Society. Hypothyroidism is characterized by poor mental and physical performance in human adults and in children can result in cognitive impairment and failure to grow normally. 

BPA, a major molecule used in the plastic industry, has been shown to be an endocrine disruptor that could exert deleterious effects on human health. Most investigations have focused on reproductive functions, but there is evidence that BPA might have negative effects on other endocrine systems including thyroid function. The current study used sheep, a relevant model for human pregnancy and thyroid regulation and ontogeny, and analyzed the internal exposures of the fetuses and their mothers to BPA and determined to what extent those exposures may be associated with thyroid disruption. 

"Our study is the first to show that BPA can alter thyroid function of pregnant animals and their offspring in a long-gestation species with similar regulation of thyroid function as humans," said Catherine Viguié, PhD, of Toxalim, Research Centre in Food Toxicology in Toulouse, France and lead author of the study. "Because of the potential consequences of maternal/fetal thyroid disruption on neural and cognitive development, we think that our study warrants the need for further investigations on the effect of BPA on thyroid function." 

This study was conducted on adult ewes that had multiple pregnancies before being included in the experiment. Some of the pregnant ewes received daily subcutaneous injections of BPA while the remainder were allocated to the control group. Blood samples were taken from jugular blood, amniotic fluid, placenta samples and cord blood to determine levels of BPA, thyroid-stimulating hormone (TSH) and thyroxine. Results showed that maternal and fetal exposure to BPA was associated with disruption of thyroid function of both the pregnant ewes throughout pregnancy and the newborns as characterized by a decrease in circulating thyroxine levels. 

"BPA concentrations in the mother blood in this experiment were fluctuating between injections from 15 to 1 time the highest blood levels reported in pregnant women in the literature," notes Viguié. "As a consequence, although this study clearly indicates that BPA has the potential to alter thyroid function in living pregnant animals and their offspring, it cannot be considered as fully conclusive in terms of risk for human health in the actual conditions of exposure of human populations." 

"In other words, although our study clearly indicates that BPA-induced thyroid disruption is possible, it does not indicate how probable such a disruption is to occur in real conditions," added Viguié. "Thus, the main merit of our work is to encourage others, including epidemiologists, to scrutinize and qualify carefully such a probability." 

Saturday, November 3, 2012

India revokes Roche patent in new blow for Big Pharma By Kaustubh Kulkarni and Ben Hirschler | Reuters – Fri 2 Nov, 2012


MUMBAI/LONDON (Reuters) - India dealt a fresh blow to the international pharmaceutical industry on Friday as its patents appeal board revoked a patent granted six years ago on Roche's hepatitis C drug Pegasys.
The Intellectual Property Appellate Board (IPAB) cited a lack of evidence that the drug was any better than existing treatments and its high price as reasons for the decision.
Pegasys was the first medicine to win protection in 2006 under India's new patent regime and the revocation will rekindle tensions between New Delhi and global drugmakers worried by the country's tough stance.
The decision follows another high-profile setback for the industry in March, when India granted the first ever compulsory licence to domestic drugmaker Natco to sell cheap copies of Bayer's cancer drug Nexavar.
Multinational drug manufacturers see India's $12 billion drug market as a huge opportunity, but are wary of what they see as lax protection for intellectual property in a country where generic medicines account for more than 90 percent of sales.
Indian generic companies, which do not need to plough money back into future research, can produce drugs at a fraction of the cost of originator firms like Roche or Bayer.
Sankalp Rehabilitation Trust, an advocacy group for cheaper medicines, had challenged the Pegasys patent with the IPAB, saying the drug was costly and gave the Swiss company a monopoly in the market for the drug.
The market price of Pegasys is 436,000 rupees for 48 weeks of treatment, although it is also available at a discounted price of 314,496 rupees, Sankalp said in a statement.
Pegasys is given in combination with another drug, ribavirin, which costs 47,160 rupees for the same period, Sankalp added.
The appeals board on Friday termed Sankalp's plea "valid."
PAYING FOR INNOVATION
Roche, which can appeal the decision to the Supreme Court, said it was reviewing the IPAB decision and could not comment on it in detail. But it said a solid system of patent protection was essential to ensure research into new treatments.
"Many of the generic drugs today used in India were once patent-protected and are only available to society because companies such as Roche were willing to take a risk by investing in new innovative drugs," a company spokesman said.
He added that Roche was assessing a number of different ways to make drugs accessible to patients in poorer countries, including volume discounts, rebates and price capping.
Campaigners for greater healthcare access contend that the best way to ensure low drug prices is to maximise generic competition by challenging unjustified patents.
Leena Menghaney, a manager in New Delhi for Medecins Sans Frontieres (MSF), said this was particularly important in a disease area like hepatitis C, which is a growing problem in many Asian countries and often hits the most vulnerable in society.
"This case shows that if people choose to use different public health safeguards in Indian law to check abuse of the patent system, then indeed they do work," she said.
Another case involving drug patents is currently in front of India's the Supreme Court, with Novartisbattling against an earlier decision refusing it a patent on cancer drug Glivec.
India is also taking a tougher line on drug pricing more generally, with plans to increase dramatically the number of essential drugs subject to price regulation.
(Reporting by Kaustubh Kulkarni; Editing by Tony Munroe and David Cowell)