We explored the comprehension of the informed consent in 77 cancer patients previously enrolled in randomised phase II or phase III clinical trials, between March and July 2011, at the San Raffaele Scientific Institute in Milano. We asked participants to complete an ad hoc questionnaire and analysed their answers. Sixty-two per cent of the patients understood the purpose and nature of the trial they were participating in; 44% understood the study procedures and 40% correctly listed at least one of the major risks or complications related to their participation in the trial. We identified three factors associated with comprehension of the informed consent: age, education and type of tumour/investigator team. We suggest several possible improvements of how to obtain informed consent that will increase patient awareness, as well as the validity and effectiveness of the clinical trials.

Different definitions of bioethics in American and Italian literature are reported. It is argued that they refer to three different conceptions of the epistemological status of bioethics: the first conceives of it as an application of moral principles to biomedical problems, the second as a methodology for the working out of clinical judgement, the third as a broader and interdisciplinary public inquiry. It is suggested that each approach grasps a part of the truth, for each singles out one level of the bioethical work. Bioethics is in fact a complex, three-level form of knowledge. The misunderstanding of this complexity has led to some confusion and to conflicts of attribution among those who are concerned with it.

Several criticisms of the argument from potential are reported. It is noted that such criticisms are inspired by two similarly wrong interpretations of potentiality, one confusing it with possibility and another with probability. A brief analysis of the original Aristotelian context in which the concept emerged shows that potentiality cannot be thought of as indicating the provision of some empirical facts in the future, but must rather be referred to the inherent ontological structure of the being in question. It is then argued that such an Aristotelian concept can be useful to express the dynamic structure of the person, as it must be understood according to contemporary phenomenological personalism. In the light of this philosophical tradition, the embryo can be viewed as a being already possessing the human nature and actively developing its potential for personhood: it also follows that human nature must not be understood as a static and predetermined essence, but rather as the principle of becoming and movement toward further achievements.

The Article focuses on the concept of social solidarity, as it is used in the Report of the International Bioethics Committee On Social Responsibility and Health. It is argued that solidarity plays a major role in supporting the whole framework of social responsibility, as presented by the IBC. Moreover, solidarity is not limited to members of particular groups, but potentially extended to all human beings on the basis of their inherent dignity; this sense of human solidarity is a necessary presupposition for a genuinely universalistic morality of justice and human rights.

A general rationale is presented for withholding and withdrawing medical treatment in end-of-life situations, and an argument is offered for the moral irrelevance of the distinction, both in the context of pharmaceutical treatments, such as chemotherapy in cancer, and in the context of life-sustaining treatments, such as the artificial ventilator in lateral amyotrophic sclerosis. It is argued that this practice is not equivalent to sanctioning voluntary active euthanasia and that it is not likely to favour it.