Archive for the ‘Drug makers’ Category

Blockbuster anemia drugs may lead to death

Wednesday, March 12th, 2008

Amgen Anemia DrugsDrug maker Amgen Inc. said Friday it expanded black box warnings about risks of death and tumor growth of its blockbuster anemia drugs.

The warnings approved by the Food and Drug Administration state that the company’s drugs increased death and accelerated tumor growth in patients with early stage breast cancer and cervical cancer. Earlier labeling warned of similar risks in other types of cancer.

The changes apply to Thousand Oaks, Calif.-based Amgen’s Aranesp and Epogen, as well as Johnson & Johnson’s Procrit. The drugs treat the blood-disorder anemia in patients with kidney failure and those on chemotherapy. Amgen manufacturers all three, though New Brunswick, N.J.-based J & J sells Procrit.

The language states that the problems occurred when doctors treated patients with elevated levels of the drugs, which increase red blood cell levels.

The action came less than a week before a meeting where government advisers are scheduled to review the risks of the blockbuster medications.

Since FDA began scrutinizing the drugs last March, shares of Amgen have sunk 27 percent. U.S. sales of its anemia treatments fell more than 10 percent to $6.3 billion for the year.

Wall Street analysts expect sales to fall further in 2008 following next week’s review by FDA’s cancer experts. The panel could recommend halting use of the drugs for certain types of cancers, or in all cancer patients. Recommendations will not apply to Amgen’s Epogen, which is used almost exclusively by kidney failure patients on dialysis.

If FDA removes only some cancer indications, Amgen’s anemia drug sales could lose between $150 million to $250 million for 2008, according to estimates by Goldman Sachs’ analyst May-Kin Ho.

FDA twice updated anemia drug labels last year, most recently in November. Amgen disclosed new data in December on the drugs’ risks in early stage breast cancer and cervical cancer patients, sending shares downward nearly 20 percent. The new label incorporates detail from those studies.

Bear Stearns analyst Mark Schoenebaum said the effect of Friday’s changes would be minimal for Amgen, since cervical cancer accounts for about 1 percent of the Aranesp market. He also noted that the previous label already highlighted the breast cancer risks.

But Stanford Group Co. analyst Gregory Frykman said the new warnings could attract tougher regulations from Medicare, the government’s health plan for seniors. Last summer Medicare ruled that it would only pay doctors to administer anemia drugs if they were prescribed at low levels.

Frykman said the new warnings could convince Medicare to scale back its policy again, perhaps only paying for the drugs when used in certain types of cancer.

Wall Street reacted positively to the news, sending shares up 1.02 cents, or 2.3 percent, to $45.20 in after-hours trading. Shares fell 14 cents to close at $44.18 in regular trading.

Reference Material on Anemia

Anemia, condition in which the concentration of hemoglobin in the circulating blood is below normal. Such a condition is caused by a deficient number of erythrocytes (red blood cells), an abnormally low level of hemoglobin in the individual cells, or both these conditions simultaneously. Regardless of the cause, all types of anemia cause similar signs and symptoms because of the blood’s reduced capacity to carry oxygen. These symptoms include pallor of the skin and mucous membranes, weakness, dizziness, easy fatigability, and drowsiness. Severe cases show difficulty in breathing, heart abnormalities, and digestive complaints.

One of the most common anemias, iron-deficiency anemia, is caused by insufficient iron, an element essential for the formation of hemoglobin in the erythrocytes. In most adults (except pregnant women) the cause is chronic blood loss rather than insufficient iron in the diet, and, therefore, the treatment includes locating the source of abnormal bleeding in addition to the administration of iron.

Pernicious anemia causes an increased production of erythrocytes that are structurally abnormal and have attenuated life spans. This condition rarely occurs before age 35 and is inherited, being more prevalent among persons of Scandinavian, Irish, and English extraction. It is caused by the inability of the body to absorb vitamin B12 (which is essential for the maturation of erythrocytes).

There are several conditions that cause the destruction of erythrocytes, thereby producing anemia. Allergic-type reactions to bacterial toxins and various chemical agents, among them sulfonamides and benzene, can cause hemolysis, which requires emergency treatment. In addition, there are unusual situations in which the body produces antibodies against its own erythrocytes; the mechanism triggering such reactions remains obscure.

A year ago:

FDA issues new warnings on widely used anemia drugs

Federal health officials have issued stern new warnings for doctors to more carefully prescribe widely used anemia drugs that can increase the risk of death and other serious problems in patients with cancer and kidney disease.

(more…)

Indian generic cancer drugs for poor countires. Will poor have a chance?

Thursday, February 28th, 2008

Indian generic drugsA drugs firm asked Indian officials for permission Thursday to make cheaper generic copies of cancer drugs for export to poor countries in a case watched closely by global pharmaceutical giants.

Indian firm Natco Pharmaceuticals made the plea for the country’s first so-called “compulsory licence” to the patent office as it bids to make generic copies of Pfizer’s Sutent and Roche’s Tarceva cancer drugs.

“This is the first case in India. A compulsory licence will allow companies like ours to manufacture and export drugs to least developing countries,” said M. Adinarayana, the secretary of Natco Pharmaceuticals, as the hearings began.

The global drugs patent system allows countries to make cheaper generic copies of patented drugs in certain situations, such as public health emergencies, under compulsory licences.

Experts said Natco’s request for permission to make and export copies of Sutent and Tarceva to Nepal tested those regulations, amid a wider debate about whether poor countries have enough access to key but often pricey medicines.

Tarceva was granted a patent in India in 2007 following a new patent law passed in 2005, which brought the world’s largest maker of generic drugs in line with World Trade Organisation guidelines on intellectual property.

The laxer rules before 2005 had encouraged generic drugs manufacture in India, which campaigners had welcomed as good for the poor.

Compulsory licences have been granted since 2005, but so far none have been issued in India, making Hyderabad-based Natco’s plea a potentially landmark case.

Canada allowed a generic copy of a patented AIDS drugs to be exported to Rwanda in October. Thailand also issued domestic compulsory licences last year, but was criticised over claims it was not responding to a public health emergency.

An Indian Patent Office official, who declined to be named, said the hearing had started over the Roche case and that the Pfizer case would be held Friday. He expected representatives from Roche and Pfizer to attend.

Roche or Pfizer did not immediately respond to emailed requests for comment.

Many Indian activists have complained that the cost of patented drugs is too high and that provision should be made to allow generic drugs to be supplied to the country’s legion of poor.

“If compulsory licensing is not resorted to, 98 percent of India’s population will not be able to afford any of the patented drugs,” said Y.K. Sapru, the president of the non-profit Cancer Patients Aid Association.

But pharmaceutical giants often argue protecting patents are crucial to stimulating the research and development of new drugs.

Industry groups object that if Natco is granted a compulsory licence for Nepal, then it could lead other Indian firms to push for more sales of generic drugs domestically.

Natco has reportedly offered Roche a five percent royalty on generic versions of Tarceva exported to Nepal, one of the world’s poorest nations. The Indian firm stopped sales of an earlier generic copy of Tarceva after Roche won its 2007 patent.

But Indian firm Cipla, based in the financial capital Mumbai, started making a generic version of Tarceva a few months ago. Roche has filed a court case to halt further domestic sales by the firm.

One tablet of Tarceva, which fights lung cancer, costs about 4,800 rupees (120 dollars) in India, where tens of thousands of people need the medicine. Cipla’s generic copy sells for nearly one-third that price.

The cost difference is crucial for poor people, a Medecins Sans Frontieres official said.

“India is the only source for generic drugs for developing countries. It has the capacity to manufacture and has many generic producers,” said Leena Menghaney, a campaigner for the group in India.

India Restricts Generic Drugs

On spring 2005, India’s parliament voted to restrict production of low-cost generic medicines. Because India is the primary supplier of inexpensive drugs to the developing world, particularly antibiotics, cancer therapy, and AIDS drugs, the bill may choke off a vital supply of medicines to the global poor.

Under India’s 1970 Patent Act, Indian companies have been allowed to produce cheaper versions of a drug as long as they used a different manufacturing process. Competition from Indian generics has slashed the price of some drugs by almost 98 percent. In Africa, Indian generics have reduced the cost of AIDS drugs from $15,000 to $200 per patient per year. Indian companies also combined a cocktail of medicines into one simple pill. Aidsmap, a UK based information resource for AIDS patients and caregivers, estimates that half of all AIDS patients in the Third World rely on Indian generics.

The bill will change Indian patent law to be more like laws in the West. Patents will be granted to products instead of processes, and companies will maintain exclusive rights to any new drug for 20 years. The change has been anticipated since 1995, when India joined the WTO on the condition that it agree to eliminate process patents by January 1, 2005.

The new bill still must be signed by the president to go into effect. The president was the original sponsor of the bill, so Indian and international officials expect the bill to become law soon.

(more…)

65 percent of foreign drug makers may have never been inspected by FDA!

Friday, November 2nd, 2007

Foreign drug makersTwo-thirds of the foreign drug manufacturers subject to inspection by the Food and Drug Administration may never have been visited by agency inspectors, a government watchdog reported to Congress Thursday.

The FDA this year listed 3,249 foreign pharmaceutical manufacturers subject to its inspection — yet the agency cannot determine whether it has ever inspected 2,133 of them, according to a Government Accountability Office report released during a House subcommittee hearing.

While some of the more than 3,000 firms may never have exported prescription drugs or drug ingredients to the United States, others likely have.

Who are those firms and what are they shipping? asked Rep. Bart Stupak, D-Mich., during Thursday’s hearing of the House Energy and Commerce subcommittee on oversight and investigations.

“We don’t know and we are not certain the FDA knows,” Marcia Crosse, director of health care at the GAO, replied.

The few foreign inspections the FDA does conduct in any given year hit just 7 percent of the foreign drug makers exporting to the U.S., the GAO estimates. That means more than 13 years can pass before a foreign manufacturer is visited even once, Crosse said.

In the case of China, which with 714 drug firms boasts the largest number subject to FDA scrutiny of any country, the record is far worse. The FDA is slated to inspect just 13 Chinese establishments this year, meaning just 1.8 percent will see an FDA inspector, according to the GAO report.

In India, the No. 2 country, the record is far better. There, 65 of its 410 firms, or 15.8 percent, are slated for inspection this year, according to the GAO. That’s in line with the 16.8 percent of Swiss drug firms the FDA likely will inspect in 2007.

The GAO and Congress have long warned of the FDA’s shortcomings in its foreign drug inspection program. The GAO findings released Thursday largely reprise many of the same warnings outlined in a 1998 report.

“It’s deja vu all over again,” said Rep. John Dingell, D-Mich.

Nearly all U.S. drug makers are inspected at least once every two years, as mandated by a law drawn up long before imports seized a sizable chunk of the drug market. There is no such requirement that the FDA conduct foreign inspections with any regularity, even as imports of all kinds grow in volume. Concerns about the safety of imported drugs, food, toys and other consumer products have been at the fore for months.

“We’re finding ourselves again on the brink of one more problem dealing with imports into our country,” said Rep. Michael Burgess, R-Texas, adding that current FDA laws and regulations were never intended to handle the increasing volume of imports.

An estimated 80 percent of the active pharmaceutical ingredients used to make drugs sold in the U.S. are imported. Among finished drugs, an estimated 40 percent are made abroad.

The FDA plans to inspect just 300 foreign drug firms this year, announcing in advance its intent to do so each time. That can hinder the FDA’s ability to view normal, day-to-day operations, the GAO found. Further, FDA inspectors aren’t provided with translators, leaving them to rely on English-speaking firm employees.

Of those foreign inspections, 88 percent are of firms that make drugs awaiting FDA approval, according to the GAO. The balance are of the type of periodic assessment meant to ensure a company’s products remain safe in the years following FDA approval. Within the U.S., the proportion is flipped, with 78 percent of FDA drug inspections of the routine, surveillance variety.

The head of the FDA, meanwhile, said the issue is larger than just one of inspection numbers.

“The solution to ensuring the quality of imports does not rely solely on increasing the number of inspections we conduct abroad — or even at the border,” Dr. Andrew von Eschenbach said, adding that the FDA seeks to revamp its whole import strategy to focus on ensuring quality is built into agency-regulated products from the start. He also proposed posting FDA employees abroad, where they could help build up the agency’s foreign counterparts.

When FDA does visit foreign plants, its inspectors can make sometimes harrowing findings. A warning letter released Thursday by the FDA cited a Chinese manufacturer of pharmaceutical ingredients for a litany of problems, including rust, flaking paint and holes in the ceiling of the production area for an unnamed product.

Much of the uncertainty in the FDA’s handling of foreign drug makers stems from its outdated computer systems, which rely on multiple databases that contain sometimes conflicting information that can be compared only manually, the GAO found. Those databases, for instance, contain tallies of foreign drug firms subject to FDA inspection that range from roughly 3,000 to about 6,800, the GAO found.

“How can we have any confidence FDA is truly managing the risk that may come from foreign-made drug products if the FDA doesn’t know the exact number or location of foreign drug manufacturers,” Stupak said.

Some clarity should be forthcoming: The FDA is soliciting bids to have its worldwide registration database verified, said Margaret Glavin, the FDA’s associate commissioner for regulatory affairs.

Von Eschenbach acknowledged his agency’s computer infrastructure remains a problem. Still, he said the U.S. drug supply is among the world’s safest.

“We shouldn’t leave people with the impression the drug supply is unsafe — ” said William Hubbard, a former FDA associate commissioner.

“It’s vulnerable,” interjected Rep. Greg Walden, R-Ore., finishing his sentence.

FDA’s Scrutiny Of Drug Makers Abroad Faulted

The Food and Drug Administration only has inspection records for about one-third of the foreign manufacturers that may be making drugs for U.S. consumers, congressional investigators found.

The Government Accountability Office, an investigative arm of Congress, found that the FDA “could not identify a previous inspection” for 2,133 facilities out of 3,249 on a list the agency used to set its inspection priorities. The agency said some of those may not be exporting products to the U.S. At its typical pace of 241 annual examinations, the agency would only check on 7% of the manufacturers each year — taking more than 13 years to give each one a single inspection, the GAO said in a preliminary report.

The report said the FDA also is struggling to calculate precisely how many foreign drug makers it oversees; different agency databases provided varying estimates.

The report was released during a hearing of the House Energy and Commerce investigations subcommittee, chaired by Michigan Democrat Bart Stupak. The hearing turned the congressional spotlight, previously trained on the safety of imported consumer goods and foods, on the rapidly growing flow of pharmaceutical ingredients and drugs from China and India.

The GAO found that in fiscal 2007, the FDA inspected just 13 of China’s 714 drug makers who were potentially supplying the U.S. India had 410 facilities and 65 inspections for the year ended Sept. 30. Even when foreign manufacturers are inspected, the GAO found, FDA inspectors must rely on the companies for translators.

FDA Commissioner Andrew von Eschenbach said the agency is moving to improve its monitoring of foreign drug makers and upgrading the technology it uses to track them. The FDA “must revamp our entire strategy, our entire game plan,” he said. Former FDA officials said the agency has struggled with budget constraints on its inspection force.

Bruce Downey, chief executive of Barr Pharmaceuticals Inc., a generic and branded-drug maker, testified that U.S. drug companies do their own extensive checks on suppliers and consumers shouldn’t be alarmed about the quality of the U.S. drug supply. But, he said, there “isn’t a justification for” the disparity between the FDA’s inspections of domestic manufacturers — which by law must be checked every two years — and foreign ones, which don’t have a similar requirement.

Republicans on the committee questioned whether the concerns about oversight of foreign-made drug products had implications for efforts to allow freer importing of cheaper medicines from Canada and some other countries. Drug makers have argued that such a move would expose Americans to counterfeits and other risky medicines; backers of liberalized import policies say their bills would add new safety protections.

Pfizer is #1 in research spendings. Johnson & Johnson, Microsoft and Ford are left behind

Wednesday, October 3rd, 2007

Pfizer Inc., the world’s largest drugmaker, is the world’s biggest spender on research, the European Commission said Friday.

That means it outranks rival Johnson & Johnson, software giant Microsoft Corp. and auto companies Ford Motor Co. and DaimlerChrysler AG.

Pfizer spent 5.8 billion euros ($8.18 billion) last year to take the top spot from Ford on the EU’s research and development list, which uses figures from the world’s 50 largest companies to chart how much they invest in researching new products.

The four biggest spenders were all from the United States: Pfizer, Ford, J&J, and Microsoft, as pharmaceutical and biotechnology companies sharply increased research spending to overtake technology hardware and equipment.

Major drugmakers are focusing more on research to develop new products that will help them compensate for losing their exclusive rights to sell many of their best-selling drugs.

U.S.-based Merck & Co. raised investment by 24 percent, AstraZeneca PLC by 15 percent, J&J by 13 percent and GlaxoSmithKline PLC by 10 percent, the EU said.

Germany’s DaimlerChrysler, which is changing its name to Daimler AG after the sale of most of its U.S. unit, was Europe’s highest scorer with 5.2 billion euros ($7.34 billion). Britain’s GlaxoSmithKline ranked No. 7, and German engineering giant Siemens AG was at No. 8.

The European Union’s research commissioner, Janez Potocnik, said more European companies needed to invest more of their own money in research.

Worldwide corporate investment in research grew 10 percent last year, riding the wave of global economic growth. Europe-based companies increased their spending at a slower rate, 7.4 percent.

The European Commission looked at spending by 1,000 companies based in Europe and another 1,000 based outside, saying overall these businesses invested 372 billion euros ($525 billion) in research in the last financial year, more than 85 percent of all research investment worldwide.

A few words about Pfizer

Pfizer Incorporated (NYSE: PFE) is a major research-based pharmaceutical company, which ranks number two in sales. The company is based in New York City. It produces the number-one selling drug Lipitor (atorvastatin, used to lower blood cholesterol); the oral antifungal medication Diflucan (fluconazole), the long-acting antibiotic Zithromax (azithromycin), the well-known erectile dysfunction drug Viagra (sildenafil citrate), and the anti inflammatory Celebrex (celecoxib) (also known as Celebra in some countries outside USA and Canada, mainly in South America).

Pfizer’s shares were made a component of the Dow Jones Industrial Average on April 8, 2004.

Pfizer boasts the industry’s largest pharmaceutical R&D organization.

Pfizer is named after German-American cousins Charles Pfizer and Charles Erhardt who launched their chemicals business Charles Pfizer and Company from a building at the intersection of Harrison Avenue and Barlett Street in Williamsburg, Brooklyn in 1849. There, they produced an antiparasitic called santonin. This was an immediate success, although it was the production of citric acid that really kick-started Pfizer’s growth in the 1880s. Pfizer continued to buy property to expand its lab and factory on the block bounded by Bartlett Street; Harrison Avenue; Gerry Street; and Flushing Avenue. That facility is still utilized for Backshop purposes. Pfizer established its original administrative headquarters at 81 Maiden Lane in Manhattan.

By 1910, sales totaled nearly $3 million, and Pfizer became established as an expert in fermentation technology. These skills were applied to the mass production of penicillin during World War II, in response to an appeal from the US government. The antibiotic was urgently needed to treat injured Allied soldiers, and it soon became known as “the miracle drug”. In fact, most of the penicillin that went ashore with the troops on D-Day was made by Pfizer.

By the 1950s, Pfizer was established in Iran, Belgium, Brazil, Canada, Cuba, Mexico, Panama, Puerto Rico and the United Kingdom.

During the 1980s and 1990s Pfizer underwent a period of growth sustained by the discovery and marketing of multiple successful drugs (Zoloft,Lipitor,Norvasc, Zithromax, Aricept, Diflucan, Viagra).