Europe Reviews Balance of Interests - Applied Clinical Trials

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Europe Reviews Balance of Interests
Animal use in clinical trials comes into question as Europe debates an update of current rules.


Applied Clinical Trials


New legislation on the use of animals in experimentation looms ever larger in Europe, as officials in Brussels squabble over the final draft of a proposal to update the rules in place now for more than 20 years. There are strong pressures from animal protection groups in Europe for stricter regulation. Without doubt, the controls that will be put in place over the coming months—or rather years, given the pace of the European Union's legislative machinery—will be tighter than at present, with provisions on everything from allowable species to record keeping and husbandry. Equally inevitable, any restrictions on the scope for testing in animals will have their impact on first-in-man trials.

The challenges were discussed at a workshop organized during the summer by the ethics working party of the European Forum for Good Clinical Practice (EFGCP), with the support of the European Commission and the European Federation of Pharmaceutical Industries and Associations. The unusual gathering brought together a broad range of interests—researchers, clinicians, patients, policy makers, regulators, ethicists, and proponents of animal welfare. The focus was how best to reach a decision on when there is enough animal data to justify going into man, while taking account of animal protection needs. The aim was to reflect on possible ethical guidance or principles that can be used in this ethical dilemma by investigators, ethics committees, and competent authorities—in other words, the best balance between reducing animal testing while offering the highest possible safety for trial subjects.

Views from all sides

Tim Hammond from AstraZeneca underlined that preclinical studies in animals may be imperfect, but still represent the best way currently available to identify toxicity and to guide dose selection for first-in-man studies. "We would still conduct these studies even without regulatory requirements," he said. And for assessing reproductive toxicity and carcinogenicity, preclinical studies remain the only available means to assess risk, despite advances in alternative methods.


Peter O'Donnell
From the perspective of the ethics committee, John Hudson of the UK Association of Research Ethics Committees noted the "increasingly uncomfortable" challenge of reaching decisions on the basis of increasingly complex—and voluminous—data, and deriving meaningful information for ethics committees and human volunteers to use in the process of informed consent. But in the end, he said, there is always a decision to be taken. "It has to be taken in as objective a fashion as possible, but ethical decisions will always be subjective decisions."

Penny Hawkins from the UK Royal Society for the Prevention of Cruelty to Animals pointed to "a significant conflict of interest between animals and science." She insisted that the goal must be to alleviate human suffering without causing animals suffering. "That goal is a long way off, but we have to have a positive approach to achieving it," she said.

From the patient perspective, said Cees Smit of the Dutch Genetic Alliance, what matters is the results of good research: "If that can be done without the use of animals, that's perfect. If animal experimentation is necessary, it must be humane and careful."

Smit argued for greater involvement of patient groups in ethics committees, as well as an international research agenda that would reduce the number of animals used, with agreed methods so that alternatives to animal testing could be validated and internationally recognized.

Common ground

There was satisfaction at discovering some common ground among researchers, patients, and animal rights advocates, and between industry and policy makers, around the ethical principles of doing no harm to study participants, and of using animals only when unavoidable in the research and development of new medicines.

While no "majority view" emerged, there were some useful contributions to thinking on the subject, and at least a list of items for further discussion in structuring the ethical agenda. Even the fact that it was possible to discuss such a controversial subject in such a broad, deliberately heterogeneous forum was greeted as something of a breakthrough—in itself an interesting measure of the almost febrile atmosphere in which medicines development takes place in Europe.


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Source: Applied Clinical Trials,
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