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Under existing law, a new drug may be labeled, promoted, and advertised only for those conditions in which safety and effectiven
Under existing law, a new drug may be labeled, promoted, and advertised only for those conditions in which safety and effectiven
admin
2010-05-14
76
问题
Under existing law, a new drug may be labeled, promoted, and advertised only for those conditions in which safety and effectiveness have been demonstrated and of which the Food and Drug Administration (FDA) has approved, or so-called "approved uses." Other uses have come to be called "unapproved uses" and cannot be legally promoted. In a real sense, the term "unapproved’ is a misnomer because it includes in one phrase two categories of marketed drugs that are very different; drugs which are potentially harmful and will never be approved, and already approved drugs that have "unapproved" uses. It is common for new research and new insights to demonstrate valid new uses for drugs already on the market. Also, there are numerous examples of medical progress resulting from the serendipitous observations and therapeutic innovations of physicians, both important methods of discovery in the field of therapeutics. Before such advances can result in new indications for inclusion in drug labeling, however, the available data must meet the legal standard of substantial evidence derived from adequate and well-controlled clinical trials. Such evidence may require time to develop, and, without initiative on the part of the drug firm, it may not occur at all for certain uses. However, because medical literature on new uses exists and these uses are medically beneficial, physicians often use these drugs for such purposes prior to FDA review or changes in labeling. This is referred to as "unlabeled uses" of drugs.
A different problem arises when a particular use for a drug has been examined scientifically and has been found to be ineffective or unsafe, and yet physicians who either are uninformed or who refuse to accept the available scientific evidence continue to use the drug in this way. Such use may have been reviewed by the FDA and rejected, or, in some cases, the use may actually be warned against in the labeling. This subset of uses may be properly termed "disapproved uses."
Government policy should minimize the extent of unlabeled uses. If such uses are valid--and many are- it is important that scientifically sound evidence supporting them be generated and that the regulatory system accommodate them into drug labeling. Continuing rapid advances in medical care and the complexity of drug usage, however, makes it impossible for the government to keep drug labeling up to date for every conceivable situation. Thus, when a particular use of this type appears, it is also important, and in the interest of good medical care, that no stigma be attached to "unapproved usage" by practitioners while the formal evidence is assembled between the time of discovery and the time the new use is included in the labeling. In the case of "disapproved uses," however, it is proper policy to warn against these in the package insert, whether use of a drug for these ’purposes by the uninformed or intransigent physician constitutes a violation of the current Federal Food, Drug and Cosmetic Act is a matter of debate that involves a number of technical and legal issues. Regardless of that, the inclusion of disapproved uses in the form of contraindications, warnings and other precautionary statements in package inserts is an important practical deterrent to improper use. Except for clearly disapproved uses, however, it is in the best interests of patient care that physicians not be constrained by regulatory statutes from exercising their best judgment in prescribing a drug for both its approved uses and any unlabeled uses it may have.
All of the following are mentioned in the passage as reasons for allowing unlabeled uses of drugs EXCEPT______.
选项
A、the increased cost to the patient of buying an FDA-approved drug
B、the medical benefits which can accrue to the patient through unlabeled use
C、the time lag between initial discovery of a medical use and FDA approval of that use .
D、the possibility that a medically beneficial use may never be clinically documented
答案
A
解析
这是一道细节题,从排除方法得出结论。B,C,D的内容都可以从文章中找到。B是错的,因为 unlabeled use的好处在首尾两段都特别强调提出;C是错的,时间滞后造成药品的新用途无法及时得到首肯,这在第一段中就指出了。最后,D也是错的。第一段中提到制造商有可能未曾知道药品的其他疗效。这样一来,A肯定是正确的答案,课文中找不到费用是消费者要考虑的一个内容。
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