Ethics


Nuremberg Code (adopted in 1949)

Declaration of Helsinki (adopted in 1964)

Voluntary consent

Informed consent

Beneficial to society

Purpose of research is to better our understanding of diseases

Built on animal studies/previous knowledge

Conform to prior scientific principles

Minimize physical and mental harm

Physicians should act in best interest of patients

Deny study if there is a suspicion that death or severe mortality may occur

Duty to protect research subjects and maintain ethical standards

Minimize risks

The goals of a research study itself should never take precedence over the wellbeing of the research subjects

Experiments should be conducted by scientists and professionals

Experiments should be conducted only by those with adequate ethics and scientific training

Subjects’ right to leave the study at any point

Compensate subjects who are harmed

Lead investigators’ duty to stop a study if continuing it will lead to disproportionate harm

Duty to protect health, rights, privacy, confidentiality, and dignity of research subjects

Proper facilities and operations to minimize harm

Protect vulnerable groups
 
Approval by an ethics committee




Inset 8.2



FDA



  • Institutional Review Board (IRB)/Independent Ethics Committee (IEC): The IRB/IEC oversees ethical, regulatory, and safety aspects of the trial at an individual study site, and decides what constitutes informed consent. IRB/IECs can be local, or institutional, or national. No IRB/IEC is without conflict of interest. Local and institutional IRB/IECs can have conflicts of interest related to promoting the prestige of the institutions or some of their faculty. Alternatively, they may meet less often and move slower than professional IRB/IECs because of their all-volunteer staff. Professional IRB/IECs funded by sponsors can have conflicts of interest because a competitive environment requires speedy approval. IRBs must have a composition which maximizes its diversity and its emphasis on the protection of the health and safety of human subjects. They must have a minimum of five members of diverse backgrounds and genders, and must include one layperson and one person who is not affiliated with the institution requesting approval. IRBs may not reject or request modification of a protocol, but they have been known to reject an individual investigator or site.


  • Food and Drug Administration (FDA): The FDA assures regulatory oversight for the pharmaceutical industry, and monitors for the public the quality and safety of all drugs and devices in this country. The FDA is not without bias, as its approval process is almost entirely funded by industry. Furthermore, congressional politics occasionally intervene in the selection of FDA leadership, priorities of regulation, and appropriations for its mission.

The FDA budget has a conflict of interest. Nearly half of its support (42 % in 2006) comes from user fees, paid by the pharmaceutical industry This money, from industry, is not merely handed over to the FDA carte blanche. Industry has detailed input into how the money is spent. FDA recently approved an unsafe knee device Menaflex, after the FDA received “extreme” “unusual” and persistent pressure from four Democratic legislators from New Jersey.



8.3 Ethical Principles


Our discussion begins by answering the question: “What are the basic ethical principles?” These four principles, now mainstream, were first championed by Beauchamp and Childress in their book Principles of Biomedical Ethics [8]. They proposed an analytical framework composed of: (1) autonomy, (2) beneficence, (3) non-maleficence, and (4) justice. Autonomy refers to the rights that a competent and mature patient has in making decisions regarding their health care. Beneficence outlines how clinicians and researchers should make decisions that maximize the benefit for a patient, specific for their situation. Non-maleficence is the idea that harm should be avoided whenever possible and risks reduced at all costs. Justice refers to the equal distribution of health resources, void of discrimination. We will now go into a detailed discussion of each ethical pillar.


Inset 8.3

In the preclinical phase, animals must be treated humanely under the supervision of an Animal Care and Use Committee (ACUC) following Association for Assessment and Accreditation of Laboratory Animal Care International (AAALAC) guidelines. Trials should use as few animals as feasible, minimize the intensity and duration of pain or stress to the animals, and substitute other materials such as cell lines or lower species whenever possible.


8.4 Autonomy


Autonomy directly opposes the obsolete perspective that the physician is the ultimate authority. It is a concept that enables the patient to share, alongside medical providers, in his or her own care. Autonomy is particularly important to participants in research trials because their enrolment is not only optional, but they may actually receive little benefit from enrolling. And because physicians are in a fiduciary relationship with their patients, they are susceptible to intimidation and coercion. Autonomy therefore stresses the importance of protecting patients’ personal and best interests. Allowing patients the opportunity to drop out of a study at any point in a study is one of many ways to protect patient autonomy.

Allen Hornblum’s book Acres of Skin [9] showcases how one American dermatologist exploited prison inmates, ultimately compromising patient autonomy. The book, based on real government documents, inquiries, and interviews, reveals some concerning research that took place in Philadelphia’s Holmesburg Prison [9]. The lead investigator behind the experiments, Dr. Albert Kligman, was a prolific dermatologist and researcher renowned for developing Retin-A® and the concept of cosmeceuticals, among many other discoveries. He bridged the gap and blurred the lines between cosmetics and medicine. Funded in part by the University of Pennsylvania, prisoners were paid for each experiment they enrolled in. The amount of money they received for experiments ranged from $10 to $300 per experiment [9] and was disproportionately higher than the money they would receive from more laborious jobs in prison. The lure of money was enough for prisoners to undergo sometimes uncomfortable testing, and it was thought that the vast majority of these prisoners decided to enroll. Many of them were fearful of the experiments, but carried through with it regardless.

Superficially speaking, one could argue that the prisoners did have some patient autonomy. They did have a choice regarding whether to enroll in the research program, and what type of experiment they preferred. Still, this argument is inherently flawed because prisoners are in a vulnerable position in which their autonomy and personal liberties are already restricted. Monetary incentives were used to take advantage of their position, and represent a means of stripping away their autonomy. The prisoners were not given a large amount of money; but, given their bleak environment, they were compelled to carry through with it even if they were fearful of the experiments. With very few other options, enrolling in these experiments was a way for the inmates in Holmesburg prison to make a moderate income compared to working elsewhere. Owing to this incident, hundreds of Philadelphia inmates filed a lawsuit against the researchers, industries, and institutions involved [10]. Unfortunately, the lawsuit was unsuccessful because it took place beyond the statute of limitations [11]. University of Pennsylvania later released an apology for the Holmesburg experimentation [12], which ended as a consequence of regulations put in place that prevented coercion and restricted the use of prisoners as test subjects. The National Research Act of 1974 was established to restrict the use of prisoners as test subjects, and to put in place ethical review boards within research institutions [12]. These regulations were enacted in part as a consequence of the Tuskegee Syphillis study and later became the Belmont Report. We will discuss the Tuskegee study later on in this chapter.

What would have been the ethical thing to do? Admittedly, there are advantages to using prisoners as research subjects, both from a scientific perspective as well as from the prisoner’s point of view. Inmates are human beings like anyone else, and will have medical conditions that would benefit from new drug trials. Certain diseases are more prevalent in prison systems, and it would be beneficial for researchers to have access to this environment so as to learn more about how to prevent disease in prisons. Inmates may also gain intrinsic reward by gaining a sense that they are helping the greater community by volunteering [13]. They also benefit from the attention given to them by “outsiders”, which instills in them a sense of societal importance. In light of all of this, physicians should be extra cautious, not only to respect autonomy, but to protect it among an otherwise compromised population. The higher prevalence of mental illness adds to the need to protect autonomy for those that may lack capacity.

One review article outlines several recommendations that address the use of prisoners as research subjects [13]. First, material incentives such as disproportionate sums of money or food should not be used. Payment, if any at all, should be proportional to wages earned in other areas of the prison. Doing so will allow inmates the option to pursue “equivalent” opportunities rather than become lured into something they do not want to do for external gains. Second, only therapeutic research should be performed. Non-therapeutic studies garner no benefit for participants, and have low yield in terms of the benefit-risk ratio. They mainly cause unnecessary risk exposure. In the case of Dr. Kligman’s experiments, many of the studies were non-therapeutic and driven by industry, money, or curiosity. The final recommendation is that external reviewers should be employed to provide an unbiased authority over the experiments and institutions involved in the research.

Clearly there needs to be a careful balance between promoting useful research and protecting prisoners. Our viewpoint on research with prisoners is in line with guidelines outlined in the Belmont Report. We feel that research involving prisoners is ethical on the assumption that there be [14]:

1.

Justice: prisoners should be given opportunities for getting involved in research instead of being deprived of this.

 

2.

Respect for persons: prisoners are in a vulnerable position and can be easily coerced or manipulated given their conditions. Scientists need to ensure that prisoners are free of any elusive coercion.

 

3.

Fair selection of subjects: prisoners should not be preferentially chosen as test subjects for studies that have more “risk”.

 

4.

Strong therapeutic component: research with inmates should have a therapeutic component to avoid unnecessary harm to an already vulnerable population.

 

5.

A national research database to help regulate what studies have already been undertaken and to better facilitate/implement future studies [1].

 

6.

Privacy: it is inherently difficult to maintain privacy and confidentiality in the overcrowded prison system. However, measures should be taken to maintain the respect and dignity of prisoner research subjects [1].

 


8.5 Beneficence


The line “I will come for the benefit of the sick” from the Hippocratic Oath is a fitting reminder for physicians to always try and help others. Beneficence pertains to the idea that physicians should act to help others. They should promote the best treatment for that patient and minimize harm as much as possible. The Belmont Report suggests two general rules with beneficence: (1) do not harm, and (2) maximize benefit while minimizing harm [14]. Especially true when conducting clinical trials, scientists should not put their research subjects in harm’s way and should act in the best interest of their patients (Table 8.2).


Table 8.2
Principles of beneficence




















Principle

Example of adherence

Example of violation

Do not harm

Stopping a clinical trial if preliminary results show that the drug is causing serious and severe side effects

Carrying through with a clinical trial despite prior knowledge of serious and adverse effects of a drug

Maximize benefit while minimizing harm

Offering the control group the opportunity for treatment if preliminary analysis shows promising results with the experimental treatment

Carrying through with a clinical trial and withholding treatment despite prior knowledge that the condition is treatable

A dilemma with randomized control trials is the paradox between beneficence and randomization. In an ideal scientific setting, researchers should genuinely have no idea about what treatment is the more effective one. However, most physicians do have an inclination about which treatment might work better [15]. Or, they may gain insight as the study progresses based on preliminary data. Given these assumptions, how can a physician continue to randomize patients if they already have an idea about what treatment is more effective? One explanation that some have proposed is the notion of “community equipoise” [16] outlined by Gifford. The idea is that an individual researcher may have formed an opinion about the treatments, but because there is uncertainty among the greater scientific community, the researcher can continue randomizing patients ethically. Another way around this dilemma is to ensure that preliminary results are not disclosed to the physicians involved. Doing so will prevent them from having a preference for treatment. That said, one could argue that the physician is not providing the best care for the patient if he knows that there is data out there which may help him provide better care. Gifford’s paper argues that defending randomization using “community equipoise” is insufficient. In order to justify randomized control trials, the therapeutic duty needs to be relaxed and informed consent more comprehensive.


Inset 8.4

Issues such as ownership of tissue and genetic material are being debated in the courts. The famous case of Henrietta Lacks and cell culture lines derived from her tissues without consent have been well-documented abuses. More recently, participants in clinical trials have contested patents derived from their tissues and genetic materials. Courts have generally sided with companies and patent holders, denying research study volunteers ownership rights or royalties from any intellectual property derived from their participation. In 2013, the US Supreme Court, in an apparent reversal of judicial precedent, raised the bar on patenting of genes and genetic material, making its patenting more difficult for manufacturers.

Another dilemma faced with clinical trials is whether or not the use of placebos is ethical. Placebo controls are attractive because they strengthen statistical significance and establish a baseline as to whether the drug is better than no treatment. But their use remains controversial. Hothman suggests that placebos deny patients from receiving the best available treatment. Additionally, he argues that the informed consent process should not allow patients to agree to a lesser treatment. More ethically sound are clinical trials that compare an experimental group with an established drug. This approach is less controversial because, at the very least, the participants are receiving treatment, which may sometimes be the gold standard, with proven benefit.

Apr 19, 2016 | Posted by in Dermatology | Comments Off on Ethics

Full access? Get Clinical Tree

Get Clinical Tree app for offline access