Guest guest Posted April 16, 2002 Report Share Posted April 16, 2002 Sorry About That Vaccine By Gottlieb Since May, patients prescribed the wonderful drug Enbrel for rheumatoid arthritis have toted around a special card, to verify for their pharmacist that they were eligible to receive the newly-approved medicine. Sounds like a methadone clinic, right? These tight checks, however, aren't performed because Enbrel is a controlled narcotic or an experimental new medicine. The drug is a monoclonal antibody, part of a revolutionary new class of compounds that must be specially crafted with designer bacteria. The drug's creator, Seattle-based Immunex, simply cannot make enough of it. Poor planning? A fire on the Immunex production line? None of these. As badly as the company wants to bring more manufacturing space on line, they have been hobbled by a morass of FDA regulations that stretch months into years. And because most small companies like Immunex can't risk investing in a $300 million manufacturing site years before their drugs pass regulatory muster, there are few facilities coming online anytime soon. The result is a worldwide shortage in manufacturing space for monoclonal antibodies and long waiting lists for Enbrel. Americans want safeguards built into the process by which drugs and vaccines are manufactured. They don't want cockroaches crawling around the fermentation vats. But the process for certifying new manufacturing space has become so byzantine that it now takes a year to build a plant, then three years to get it inspected and approved. One reason is that calling the FDA is more akin to calling the phone company than the fire department. Inspectors don't show up on time. At each of dozens of regulatory pauses, biotechnology companies must stop and bring in FDA inspection teams, who take weeks or even months to come on site. The need to expand manufacturing space was the cover story when Health and Human Services Secretary Tommy threatened to go to Congress to seek a generic version of the Anthrax-killing antibiotic Cipro. In that case, the threat was mostly to strong-arm Bayer into lowering the drug's price. But the pitch was believable, and the public bought it. Even the Canadians fretted that they didn't have enough antibiotic stashed away to respond to doomsday scenarios. We're lucky. Ramping up production in a bona fide crisis is no small task. There were already large stores of Cipro on the shelves. Consider Bayer's response to mushrooming Cipro demand: converting a facility that formerly produced Baycol, a cholesterol-lowering drug that (ironically) was withdrawn by the FDA last month for an " unusually high " number of side effects. The old Baycol facility has been turned into a Cipro factory. The FDA is crash-inspecting the new line, but ramped-up production will still take several months. Similar issues are stalling the manufacture of an FDA-approved vaccine for anthrax, manufactured by Michigan-based BioPort. The company continues a seven-year struggle with regulators to maintain manufacturing compliance, failing for everything from fans that are too small to a bug found on a laboratory floor. Regulatory rules on vaccine production are also getting in the way of preparations for a hypothetical smallpox attack. The government plans to rush inspection of new vaccine production lines, but it still will take almost a year. Secretary has received proposals from ten companies, all of which will have to prove quickly that they can redirect staff, equipment and facilities. In this case-with the watchful eye of the secretary fixed on their hides-FDA regulators have said they can do the approvals in months, instead of the usual years. They can do it quickly-when they need to. BioPort has not been as lucky. It upgraded its anthrax-vaccine manufacturing space a half-dozen times. Since 1999, it has been given an ever-expanding list of required changes for the FDA to validate the plant. The high cost of regulatory compliance is one reason some major pharmaceutical companies have left the vaccine business altogether. And why this season there will be a shortage of flu vaccine. The future looks grim. In the case of monoclonal antibodies like Enbrel, more than 200 companies are involved in developing approximately twice that number of antibodies, to treat a variety of human diseases. When other blockbuster drugs such as Enbrel or Neupogen-Amgen's new drug to help cancer patients fight infection-are added to those figures, it is clear the production crunch is just beginning. Some manufacturers have been forced to bet the farm-literally-on an alternative manufacturing method called transgenics. Genzyme Transgenics, Viragen and CropTech are transferring human genes into goats, chickens and tobacco plants, in order to produce protein drugs more efficiently. One bit of good news is that regulatory strictures have created new industries from scratch. Whole slates of companies, for example, specialize in the outsourced production of these drugs, freeing research-intensive companies from the risk of anticipating demand for experimental drugs that may not be approved. But if demand suddenly takes off, even those facilities may not be enough to match demand. Over-regulation of pharmaceutical manufacturing drives up the cost of new medicines and keeps others off the production lines altogether. If the inspection process were not so slow and expensive, companies would be likelier to mothball spare production lines, anticipating future demand. And Washington might find the necessary capacity the next time we have an unexpected problem. http://www.gilderbiotech.com/ArticlesBy/Op%20Ed/Sorry.htm Quote Link to comment Share on other sites More sharing options...
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