The use of a placebo arm in clinical trials is unethical if there is an active comparator that is acceptably safe and effective. We argue that reasonable evidence of effectiveness and safety of an inexpensive alternative to an expensive therapy is sufficient to require that the inexpensive therapy be included as a comparator when the expensive therapy is tested, and that use of an inactive placebo comparator only is not ethical. For example, studies of the expensive drug eplerenone for congestive (...) heart failure have not included a spironolactone arm, although there is reasonable evidence that spironolactone would be safe and effective, and spironolactone is inexpensive. The requirement to study inexpensive therapies is based on avoidance of unnecessary cost in medical care as an example of non-maleficence. Several ethical actors in the design, conduct, and publication of clinical trials and their results bear responsibility for the appropriate conduct of clinical trials. That responsibility includes protecting study subjects from being asked to participate in clinical trials that serve primarily to promote the use of new and expensive therapies. (shrink)

The paper presents major ethical, legal and methodological problems related to the use of placebo in mental disorders, especially in depression. It is pointed out that although authoritative groups of experts and numerous publications in the field of psychopharmacology indicate advisability of the double blind design with placebo in clinical trials of antidepressants, in recent years there have been more and more voices questioning legitimacy of this method. Objections of an ethical nature are raised, and reliability of this approach is (...) put into doubt from the methodological viewpoint. These issues are discussed in more detail in the paper. Available alternative solutions should be implemented in psychotropic drug studies. The author shares these objections and doubts of an ethical nature, and believes that the placebo procedure is not a necessity in clinical trials of antidepressants. (shrink)

In response to the COVID-19 pandemic, large-scale research and pharmaceutical regulatory processes have proceeded at a dramatically increased pace with new and effective, evidence-based COVID-19 interventions rapidly making their way into the clinic. However, the swift generation of high-quality evidence and the efficient processing of regulatory authorisation have given rise to more specific and complex versions of well-known research ethics issues. In this paper, we identify three such issues by focusing on the authorisation of molnupiravir, a novel antiviral medicine aimed (...) at reducing the ability of SARS-CoV-2 to multiply in the body, for clinical use by the National Health Service in England and the concomitant testing of molnupiravir through the large-scale Platform Adaptive trial of Novel antiviRals for eArly treatMent of COVID-19 In the Community randomised control trial. By analysing the ways in which the authorisation and clinical use of molnupiravir complicate standard approaches to clinical equipoise, standard of care and participant consent in the PANORAMIC randomised control trial, we will explain some of ethical implications for clinical trials that aim to study the efficacy and safety of new COVID-19 and other therapeutics when conditional authorisation has already been granted and when such treatments have already been made available to patients by national health providers. (shrink)

The principle of clinical equipoise has been variously characterized by ethicists and clinicians as fundamentally flawed, a myth, and even a moral balm. Yet, the principle continues to be treated as the de facto gold standard for conducting randomized control trials in an ethical manner. Why do we hold on to clinical equipoise, despite its shortcomings being widely known and well-advertised? This paper reviews the most important arguments criticizing clinical equipoise as well as what the most prominent proposed alternatives are. (...) In the process, it evaluates the justification for continuing to use clinical equipoise as the gold standard for randomized control trials. (shrink)

In response to the COVID-19 pandemic, large-scale research and pharmaceutical regulatory processes have proceeded at a dramatically increased pace with new and effective, evidence-based COVID-19 interventions rapidly making their way into the clinic. However, the swift generation of high-quality evidence and the efficient processing of regulatory authorisation have given rise to more specific and complex versions of well-known research ethics issues. In this paper, we identify three such issues by focusing on the authorisation of Molnupiravir, a novel antiviral medicine aimed (...) at reducing the ability of SARS-CoV-2 to multiply in the body, for clinical use by the National Health Service in England and the concomitant testing of Molnupiravir through the large-scale PANORAMIC randomised control trial. By analysing the ways in which the authorisation and clinical use of Molnupiravir complicate standard approaches to clinical equipoise, standard of care, and participant consent in the PANORAMIC randomised control trial we will explain some of ethical implications for clinical trials that aim to study the efficacy and safety of new COVID-19 and other therapeutics when conditional authorisation has already been granted and when such treatments have already been made available to patients by national health providers. (shrink)

Experimental design is one aspect of a scientific method. A well-designed, properly conducted experiment aims to control variables in order to isolate and manipulate causal effects and thereby maximize internal validity, support causal inferences, and guarantee reliable results. Traditionally employed in the natural sciences, experimental design has become an important part of research in the social and behavioral sciences. Experimental methods are also endorsed as the most reliable guides to policy effectiveness. Through a discussion of some of the central concepts (...) associated with experimental design, including controlled variation and randomization, this chapter will provide a summary of key ethical issues that tend to arise in experimental contexts. In addition, by exploring assumptions about the nature of causation and by analyzing features of causal relationships, systems, and inferences in social contexts, this chapter will summarize the ways in which experimental design can undermine the integrity of not only social and behavioral research but policies implemented on the basis of such research. (shrink)

Die ethischen Aspekte der Verwendung von Placebos in klinischen Versuchsreihen wurden im letzten Jahrzehnt ausführlich und kontrovers diskutiert. Es fehlt dennoch eine gründliche vergleichende Analyse der verschiedenen internationalen Richtlinien, ihrer Terminologien und ihrer auf Placebo bezogenen Prinzipien. Das zentrale Problem ist die Rechtfertigung von Placebo bei einer nachgewiesen wirksamen Therapie. Alle aktuellen Versionen der untersuchten Richtlinien schlagen solche Rechtfertigungen vor, unterscheiden sich hierbei jedoch beträchtlich. Zunächst werden wir ein formales allgemeines Prinzip herausarbeiten. Dann werden wir drei verschiedene Kategorien von Kriterien (...) darstellen: das Schadensrisiko oder die Belastung, zwingende wissenschaftliche Gründe und die Erhältlichkeit einer nachgewiesen wirksamen Therapie. Die Analyse zeigt bedeutende normative Abweichungen und Widersprüche innerhalb und zwischen den einzelnen Richtlinien. Besonders frappierend ist es, dassmancheRichtlinien es erlauben, Versuchsteilnehmer dem Risiko eines schweren Schadens auszusetzen, während andere gerade dies untersagen. Abschließend versuchen wir zu zeigen, wie sich die normativen Unterschiede bei der Entscheidungsfindung von Forschern und Ethikkommissionen auswirken können. (shrink)

This paper targets an orphan topic in research ethics, namely the so called principle of the primacy of the human being, which states that the interests of the human subject should always take precedence over the interests of science and society. Although the principle occupies the central position in the majority of international ethical and legal standards for biomedical research, it has been commented in the literature mainly in passing. With a few notable exceptions, there is little in-depth discussion about (...) the meaning and role of the principle. Several authors note that the principle is vogue, ambiguous and apparently conflicting with the accepted practice of conducting non-beneficial research on individuals unable to give consent. There are opinions that it is just “a vacuous figure of speech” and should be abandoned. This paper argues that the primacy principle is far from being “a vacuous figure of speech”, rather it should be seen as a threefold concept: a fundamental interpretative rule, a procedural rule, and a substantive rule aimed at protecting research subjects from instrumental treatment and unacceptable risks. This interpretation tracks back to the principle regulatory and normative origins in the Declaration of Helsinki of 1975, but also acknowledges changes in research ethics and practice, which took place at the turn on the twentieth and twenty-first centuries. Thus, the proposed reading of the principle is not only original, but also historically grounded and normatively fruitful. It provides a fresh and ethically rich perspective on extensively debated, but still controversial problem of an upper limit of permissible risks in non-beneficial studies. (shrink)

The use of statistics in medical research has been compared to a religion: it has its high priests, supplicants, and orthodoxy. Although the comparison may be more unfair to religion than to research, a useful lesson can nonetheless be drawn: the practice of clinical research may benefit—as does the spirit—from critical self-examination. Arguably, no aspect of the conduct of clinical trials is currently more controversial—and thus in as dire need of critical examination—than the use of placebo controls. The ethical and (...) scientific controversies associated with placebo-controlled trials, never far below the surface, have once again seized public attention. Clearly, concern about these issues within the professional community runs deep and wide, as evidenced by the volume of response generated by Kenneth Rothman and Karin Michels's recent Critique. Criticisms of the use of placebo controls in clinical research are scattered through the literatureo; our objective is to present the case against placebos in a compendious form that takes account of scientific and statistical as well as normative issues. (shrink)

There has been considerable debate about the ethical acceptability of using placebo-controls in clinical research. Although this debate has been rich in rhetoric, considering that much of this research is predicated upon the assumption that data from this research is vital to clinical decision-making, it is ironic that researchers have introduced little data into these discussions. Using some published research concerning the use of placebo-controls in clinical research in hypertension and psychiatric drug trials, I suggest some ways that such data (...) might be incorporated into the ethical analysis concerning placebo use in clinical trials. This approach promises to be important for enhancing conceptual and scientific understanding as well as public policy decision-making. (shrink)

The use of placebo as a control condition in clinical trials of major depressive disorder and anxiety disorders continues to be an area of ethical concern. Typically, opponents of placebo controls argue that they violate the beneficent-based, “best proven diagnostic and therapeutic method” that the original Helsinki Declaration of 1964 famously asserted participants are owed. A more consequentialist, oppositional argument is that participants receiving placebo might suffer enormously by being deprived of their usual medication(s). Nevertheless, recent findings of potential for (...) suicidality in young people treated with antidepressants, along with meta-analyses suggesting that antidepressants add no significant clinical benefit over placebos, warrant a re-evaluation of the arguments against placebo. Furthermore, the nature of placebo treatment in short-term clinical trials is often not well understood, and lack of understanding can foster opposition to it. This paper will show how scientific justifications for placebo use are morally relevant. The fundamental ethical importance of placebo controls is discussed in relation to several aspects of clinical trials, including detection of adverse events, accurate assessment of clinical benefit, advancing understanding of the heterogeneity of depression and anxiety disorders and respecting informed consent requirements. Prohibiting the use of placebo controls is morally concerning in that such prohibitions allow for the possibility of serious adverse public health consequences. Moral worries that research participants receiving placebo are being unduly jeopardised will be shown to be exaggerated, especially in relation to the net benefits for end-users to be gained from the quality of data resulting from using placebo controls. (shrink)

Die ethischen Aspekte der Verwendung von Placebos in klinischen Versuchsreihen wurden im letzten Jahrzehnt ausführlich und kontrovers diskutiert. Es fehlt dennoch eine gründliche vergleichende Analyse der verschiedenen internationalen Richtlinien, ihrer Terminologien und ihrer auf Placebo bezogenen Prinzipien. Das zentrale Problem ist die Rechtfertigung von Placebo bei einer nachgewiesen wirksamen Therapie. Alle aktuellen Versionen der untersuchten Richtlinien schlagen solche Rechtfertigungen vor, unterscheiden sich hierbei jedoch beträchtlich. Zunächst werden wir ein formales allgemeines Prinzip herausarbeiten. Dann werden wir drei verschiedene Kategorien von Kriterien (...) darstellen: das Schadensrisiko oder die Belastung, zwingende wissenschaftliche Gründe und die Erhältlichkeit einer nachgewiesen wirksamen Therapie. Die Analyse zeigt bedeutende normative Abweichungen und Widersprüche innerhalb und zwischen den einzelnen Richtlinien. Besonders frappierend ist es, dassmancheRichtlinien es erlauben, Versuchsteilnehmer dem Risiko eines schweren Schadens auszusetzen, während andere gerade dies untersagen. Abschließend versuchen wir zu zeigen, wie sich die normativen Unterschiede bei der Entscheidungsfindung von Forschern und Ethikkommissionen auswirken können. (shrink)

ABSTRACT In this essay, Paul Lauritzen examines Richard B. Miller's liberal account of pediatric ethics by asking if the duty to promote a child's basic interests is substantial enough to secure the well‐being of children. This question is raised in light of two case studies: daytime TV talk shows that broadcast interviews with sexually active children, and a medical study conducted to test the effect of growth hormone treatment on adult height in peripubertal children. In both cases, Lauritzen argues, children (...) are subjected to potential harms that are not easily explained, and therefore not easily prevented, by appeals to basic interests. (shrink)

The term therapeutic misconception was coined by Paul Appelbaum and his colleagues to describe the tendency of patients enrolled in clinical trials to confuse research participation with the personal clinical attention characteristic of medical care. It has not been recognized that an analogous therapeutic misconception pervades ethical thinking about clinical research with patient-subjects. Investigators and bioethicists often judge the ethics of clinical research based on ethical standards appropriate to the physician-patient relationship in therapeutic medicine. This ethical approach to clinical research (...) constitutes a misconception because it fails to appreciate the ethically significant differences between clinical research and clinical care.In this article I argue that the assumption that the ethical principles governing the practice of therapeutic medicine should also apply to clinical research with patient- subjects produces incoherence in research ethics and erroneous guidance concerning certain controversial research designs. (shrink)

This article addresses the impact of the potential conflict between the roles of physicians who are both clinicians and researchers on the recruitment of persons into research trials. It has been proposedthat a physician breaches inter-role confidentiality when he or she uses information gathered in his or her clinical role to inform patients about trials for which they may be eligible and that clinician-researchers should adopt a model of preliminary consent to be approached about research prior to commencing a clinical (...) relationship. This article argues that even if we grant the legitimacy of inter-role confidentiality (which is open to question), there are circumstances in which other obligations physicians bear override the obligation of inter-role confidentiality. Moreover, it is argued that the practice of preliminary consent is morally suspect and that such consent cannot be deemed valid. The article concludes with a series of recommendations of ways in which the legitimate concern regarding the conflicting roles of clinician-researchers can be addressed in the recruitment stage of research. (shrink)

In October 2013, the Declaration of Helsinki was revised a seventh time in its 50 year history. While it is the most widely accepted set of ethical principles for the protection of patients participating in medical research, the Declaration of Helsinki has also been subject of constant controversy. In particular, its paragraph on the use of placebo controls in clinical trials divides the research community into active-control and placebo orthodox proponents, both continuously demanding revisions of the Declaration of Helsinki in (...) favour of their position. The goal of the present project is to compare the mainly theoretical controversy with regulatory implementation. We distributed a questionnaire to national drug regulatory authorities from different countries to collect information on the authorities’ respective approaches to interpretation and implementation of the Declarations’ placebo paragraph in the conduct of medical research. Our findings suggest that the majority of drug regulatory authorities have established a practice of a middle ground, allowing placebo controls in some instances. Various interpretations of “serious harm” and “methodological reasons” are proposed as well as safeguards to avoid abuse of the option to use placebo-controls. Leaving the placebo paragraph open to various interpretation is a result of the Declaration of Helsinki’s character as a guidance document. With the current version controversy will continue. The Declaration should be continued to be strengthened to enforce the appreciation of conducting medical research with the highest ethical standard. (shrink)

The conduct of clinical trials involving placebo in developing countries in the presence of an existing effective treatment triggered an intense debate on the standard of care to be provided to those populations. Charges of exploitation of vulnerable groups and double standards have been raised by several scholars. In response to these concerns, the Declaration of Helsinki was revised in 2000, 2008 and 2013, eventually endorsing the golden standard instead of the local standard of care. The European Union adopted a (...) strategy on the Marketing Authorization of medicinal products tested in third countries, improved with Regulation 536/2014 on clinical trials on medicinal products for human use. Additional rules have been enacted by other international organizations. The present paper has the aim of analyzing scope and content of existing international and regional standards on placebo. (shrink)

In April 1999, Dr. Curt Freed of the University of Colorado in Denver and Dr. Stanley Fahn of Columbia Presbyterian Center in New York presented the results of a four-year, $5.7 million government-financed study using tissue from aborted fetuses to treat Parkinson’s disease at a conference of the American Academy of Neurology. The results of the first government-financed, placebo-controlled clinical study using fetal tissue showed that the symptoms of some Parkinson’s patients had been relieved. This research study involved forty subjects, (...) nineteen women and twenty-one men; all suffered from Parkinson’s disease for an average of 13.5 years. In the study, each subject underwent neurosurgery: “four tiny burr holes, drilled through the wrinkle lines above the eyebrows into the skull, to clear a pathway to the brain. But only half received injections of fetal cells into the putamen, the region of the brain that controls movement; the other half received nothing. One year later, three members of the placebo group said their symptoms had improved.” In two-thirds of the transplant recipients, the fetal tissue took hold and seemed to establish a new network to produce the missing neurochemical dopamine. (shrink)

The cases for and against somatic gene therapy, germ-line gene therapy and gene therapy for enhancement are assessed. It is argued that none of these kinds of therapy is inherently wrong, and that an adequate assessment should consist in weighing risks and benefits. On this basis, it is argued that somatic therapy is a promising new kind of treatment that we should welcome; that we have technologies available that make germ-line therapy superfluous, unless we want to engage in enhancement engineering; (...) and that although we should be extremely cautious if we were to engage in enhancement engineering, we cannot categorically rule out that there might be cases in which this kind of therapy should be applied, e.g. if it was the only way of saving millions of lives. (shrink)

In this essay, Paul Lauritzen examines Richard B. Miller's liberal account of pediatric ethics by asking if the duty to promote a child's basic interests is substantial enough to secure the well-being of children. This question is raised in light of two case studies: daytime TV talk shows that broadcast interviews with sexually active children, and a medical study conducted to test the effect of growth hormone treatment on adult height in peripubertal children. In both cases, Lauritzen argues, children are (...) subjected to potential harms that are not easily explained, and therefore not easily prevented, by appeals to basic interests. (shrink)