| PBJ vol2.iss2
Bioethics Without
Borders |
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The Two-Faced Angel:
Do Phase I Clinical Trials Have a Place in Modern Hospice?
Author Daniel
S. Ross, University of Pennsylvania Faculty
Joseph Straton, MD, MSCE |
ABSTRACT
Increasingly, bioethicists have been
exploring the possibility of making phase I clinical trials available
to hospice patients. Phase I clinical trials are designed to test
a drug’s safety and dosage, not its effectiveness. Participants
in these studies generally do not understand that the purpose
of the investigation is not to benefit them, thus challenging
the notion of informed consent. But furthermore, the idea that
patients believe experimental drugs will help them is contrary
to the principles of hospice. Also, the very nature of the research
in phase I conflicts with hospice’s methods. For these reasons,
this paper finds that the two models must remain distinct.
Death is an angel with two faces:
To us he turns
A face of terror, blighting all things fair;
The other burns
With glory of the stars, and love is there.
—Theodore Chickering Williams
The appalling work of “Dr.” Josef
Mengele was probably the lowest point in the history of medical
research. A “physician” at Nazi Germany’s infamous
Auschwitz concentration camp, Mengele contributed to the executions
of 400,000 people—a flick of his wrist meant the difference
between life and death—while at the same time directing the
suffering of countless others over the course of his notorious investigation.
Gruesome experiments to his name include tolerance studies of electric
shock and radiation exposure on live subjects who were either killed
instantly or left severely scarred. Mengele never expressed remorse
for his actions, citing the fact that all of his human Guinea pigs
were amongst the walking dead, already condemned by Hitler. Who
cares what we do to people who are going to die anyway? For his
“contributions” to medical knowledge, this “doctor”
lives on by way of his well-known pseudonym, the “Angel of
Death” (Pence, 1990).
But in contrast, while Mengele and his experiments
define “a face of terror, blighting all things fair,”
modern American medicine has a care model that “burns/ With
glory of the stars”: hospice. Unlike the Nazi, whose shocking
exploits evoke images of the Grim Reaper, hospice reminds us of
Hermes, the Greek god whose charge was to lead the souls of the
dead to Hades. According to the National Hospice and Palliative
Care Organization (2002), hospice is “support and care for
persons in the last phase of an incurable disease so that they may
live as fully and comfortably as possible.” It functions as
a comforting guide to the ill and their families as they progress
through the process of dying, respecting life though understanding
death as its natural terminus. Hospice patients have chosen to accept
their fate, forego curative treatment, and thus spend their final
days in palliative care, attending only to the comfort of themselves
and those close to them—“and love is there.” This
brand of healthcare clearly is a different side of the angel of
death.
But what happens when we attempt to look at both
of the seraph’s faces simultaneously. What happens when we
attempt to conduct research on the dying, particularly those who
have made the hospice decision, who have therefore accepted that
they are “going to die anyway?” Truth be told, the initial
juxtaposition of Mengele and hospice is unfair to the scientist’s
perspective, but bringing the sociopath into this discussion is
not wholly inappropriate in that researchers do want to use hospice
patients to test treatments, not for efficacy, but for toxicity
and dosage—they want to execute phase I clinical trials on
these subjects (Byock, 2005). Ethically, this could not be more
askew. As we will see, enrolling hospice patients in phase I trials
compromises and contradicts the goals of palliative care and is
thus an unethical medical practice.
Interestingly, both early clinical tests of pharmaceuticals
and hospice are linked by a common goal: altruism. Phase I trials
are most often associated with oncology and chemotherapy, and “agents
and interventions that are tested in phase I may have substantial
side effects” (Casarett et al., 2002, p. 1601). In these situations
scientists have discovered a compound that might be a Holy Grail,
a miraculous cure for cancer. But their invention might also be
dangerous, so researchers conduct a Phase I trial, defined by the
FDA as “initial studies to determine the metabolism and pharmacologic
actions of drugs in humans, the side effects associated with increasing
doses, and to gain early evidence of effectiveness” (ClinicalTrials.gov,
2005). As an ethical necessity, participants are informed that their
involvement “offers no meaningful chance of direct medical
benefit”—the purpose of their participation is to test
a therapy’s safety, not its value (Casarett et al., 2002,
p. 1601-1602). A survey of hospice patients conducted by Dr. David
Casarett, Dr. Cordt Kassner, and Dr. Jean S. Kutner (2004) indicated
that this perception of selflessness is the most popular motivation
for which they would consider joining a clinical trial: 66% of those
who expressed willingness to be approached about research said they
desired this to “help others” (p. 857).
The modern hospice is founded on a separate sense
of this same humanity. In a pamphlet provided by the Hospice Association
of America, the organization describes its model of care as “[reaffirming]
the right of every person and family to participate fully in the
final stage of life” (Hospice Association of America, 2002).
Hospice focuses on palliative care and symptom management, providing
services that support the medical, social, emotional, and spiritual
needs of the dying and their loved ones. Since 1982, Medicare has
offered a hospice benefit, subsidizing all costs for those who enter
certified hospice programs, subject to the condition that their
prognosis be terminal within six months or less and that they terminate
curative care, including Phase I clinical trials. This new policy,
through its financial incentive to enroll in and provide hospice
care, drove the number of registered hospice program in the United
States from 31 in 1984 to 2,265 in January 2002 (Hospice Association
of America).
But besides economics, key to the success of hospice
is the understanding reached by all parties that life-sustaining
treatment will cease—besides “comfort first,”
do-not-resuscitate (DNR) is the golden rule in hospice care. This
principle is the root of the first major ethical conflict between
hospice and research: researchers have a stake in the life and death
of their subjects. More data can be collected if the subject is
kept alive longer, thus doctors might be inclined to override a
DNR order in order to elongate their study. Margaret Edson’s
Wit, a play turned HBO movie, highlights this distressing possibility.
Vivian Bearing, the main character, is a former English professor
diagnosed with terminal ovarian cancer. At the behest of a doctor
at her university, she decides to enroll in what was most likely
a phase I trial, but after eight months of suffering through a volatile
course of chemotherapy, she decides that if her heart stops, she’d
like it to stay that way. The last scene, however, portrays one
of the researchers violating this decision, calling in a “code
blue” to bring her back because “she’s research.”
Fortunately in the end, the blue team leaves Dr. Bearing in peace,
but this fictional picture is not so far from reality1
(Nichols, 2001).
In another study by Dr. Casarett (1999), this time
with Dr. Carol Stocking and Dr. Mark Siegler, a survey of 358 physicians
showed that the 29% of them “certainly would” resuscitate
a patient who had experienced a cardiopulmonary arrest if the arrest
was due to a complication in treatment. Furthermore, on a 7-point
Likert scale, with 1 being “certainly would not” and
7 being “certainly would”, the mean response to that
question was 5.24, “likely” (Stocking et al., 1999,
p. 36). Consider that phase I clinical trials are those most likely
to exhibit the types of complications that would cause heart stoppage—in
the movie, as Vivian whispers with her characteristic wit, it’s
not her cancer has so ravaged her body that she is required to be
in immunonological isolation—it’s her treatment (Nichols,
2001). How, then, would a researcher react to a cardiac arrest when
faced with the inherent DNR of hospice, the therapeutic misconception,
and the fact that his research depended on his subject living as
long as possible—which of the angel’s masks would he
wear? The truth is that no one can be trusted to make the ethical
decision under these circumstances, and for this reason alone, it’s
clear that research ethics and the hospice model don’t mix
well.
It’s also apparent, revisiting Mengele, that
research on those “are going to die anyway” raises some
complicated moral questions. In an August 2000 article in the Journal
of Pain and Symptom Management, Dr. Casarett and Dr. Jason Karlawish
outlined and discussed four considerations that are particular to
research in hospice: that “these patients are especially vulnerable,”
that “investigators must obtain consent from patients and
families,” that “balancing research and clinical roles
is particularly difficult,” and that “the risks and
benefits of palliative research are difficult to assess” (p.
131). The first concern is acknowledged by the National Institutes
of Health, the principal research regulatory body in the United
States, which “defines people near the end of life as a ‘special
class’ of research subjects” because of their lack in
decision-making capacity and questionably voluntary choices (Karlawish
et al., 2000, p. 131). . This issue is clearly related to the second
concern regarding informed consent, and the combined problem is
fairly sticky: can terminal patients reasonably give consent to
enroll in clinical trials?
The answer is no: dying people enrolled in phase
I research do not understand that the purpose of the investigation
is not their own benefit. In a study on Phase I research participants
at the University of Chicago, surveyors found that 85% of patients
decided to participate because of possible therapeutic benefit and
that 93% said that they understood all (33%) or most (60%) of the
information given to them; the same study found that only 33% could
actually state the purpose of the trial: dose-escalation and dose-finding
studies (Daugherty, 1999, p. 1607). Also, in the same study in which
Dr. Casarett (2004) observed that two thirds of hospice patients
would participate in research for altruistic reasons, 55% also responded
that they’d participate to in an attempt to help themselves
(p. 857). Unfortunately, these views are horribly misguided because,
according to the Mayo Clinic (2005), 30% of experimental therapies
aren’t even safe enough to make it out of phase I, and only
6% eventually come before the FDA for approval.2
Clearly these statistics, coupled with the results of both surveys,
indicate a surprising amount of ignorance amongst those participating
in studies for which they are supposed to have given “informed”
consent. This is because the consent they have given is not truly
informed. To present terminal patients with the option to enroll
in phase I research is to tantalize them with a terribly false hope
for their own survival. And unfortunately there’s no better
way to say that this hope is completely contrary to the idea of
hospice other than to state it bluntly: hospice patients have accepted
their impending deaths, and those enrolled in phase I clinical trials
cling to the thought that their participation will cure them. Thus
it is absolutely unethical to offer a hospice patient the opportunity
to enter a phase I clinical trial because doing so would undermine
the basis of the palliative model.
While the false hope of patients enrolled in phase
I trials contradicts the foundations of hospice, the other two ethical
concerns enumerated by Dr. Casarett and Dr. Karlawish compromise
its goals. Hospice care’s approach is primarily focused on
providing comfort for both patient and family, and the difficulties
that arise in defining the roles of caregivers and in assessing
the perils and profits of research directly inhibits this end (Karlawish
et al., 2000 p. 134-135). First of all, enrolling a patient in both
research and hospice involves constant contact with quite a few
physicians, each with a different agenda. Who, then, helps patient
and family make the important decisions that arise at the end of
life? Adding a research team into the mix makes the already stressful
process of dying all the more hectic for all parties by giving voice
to perspective that might not necessarily have the best interests
of patient and family in mind. That said, the same criticism could
be charged against hospice practitioners, but the very possibility
of such confusion in an already nerve-racking situation demonstrates
that the natural tension that would exist between the two healthcare
teams would be a barrier to good end-of-life care. Second of all,
the side effects of these drugs are counter-productive to the goal
of alleviating physical pain. That nearly a third of phase I therapies
are too dangerous to continue testing indicates just how volatile
these substances can be. A disease that puts a person in hospice
is obviously bad enough as it is; do caregivers really need the
added responsibility of controlling the symptoms of something that
can so easily be avoided? Finally, the very nature of a phase I
trial is to assess the hazards of a drug, an end that also opposes
to the goal of comfort. Researchers want to know how uncomfortable
the drug makes the subject: how much vomit heaved, how many pounds
lost, or how few hairs left (Nichols, 2001). Doctors whose objective
is to measure pain have a most unfortunate aim that opposes the
fundamentals of palliative care, and for this reason it seems that
their presence can do nothing but hinder the hospice course. For
these reasons, phase I research trials have, intrinsically, no place
in a true hospice program.
Still, it seems rather unfair to deprive participants
in phase I research trials of the hospice’s resources. In
fact, it seems rather ludicrous that any person would be denied
the means of attaining a more comfortable healthcare experience.
But this is the status quo in American medicine. For example, at
the Hospital of the University of Pennsylvania, the 14th best hospital
in the country according to U.S. News and World Report, only 1.5
nurse practitioners provide only 20 of 680 (3%) patients with palliative
care, while 20-30% could be assisted by their expertise (McMamamen,
2005). This is general symptom management, not just for the dying,
to which everyone should have access.
Therefore, the objections to allowing hospice patients
to enroll in phase I research outlined in this paper are not grounded
in the notion that participants in clinical trials should be restricted
from the services of hospice—everyone should have those. Rather,
the goals of the two approaches are so divergent that to utter “experimental
drug” and “hospice” in same breath seems sacrilegious.
The government’s current policy on the matter is thus correct:
those participating in clinical trials should not be eligible for
Medicare’s benefit. But a happy-medium paradigm for care should
be established that permits those who partake in phase I trials
access to the suffering management resources that make hospice so
popular. Currently, phase I research and hospice characterize the
two-faced angel of dying in America. But death should be an angel
with only one expression, a gaze that “burns/With glory of
the stars, and love is there.”
1
At many points in the film, her physicians indicate their surprise
that she lasted as long as she did, acknowledging that the drug
was being tested for safety.
According to the website, 20% of all treatments make it from phase
I to FDA approval, but after analysis of the other statistics provided,
this is impossible. 70% of drugs pass phase I, 33% of those pass
phase II, and 25-30% of those pass phase III. Multiplying those
odds yields 6%, and that doesn’t even factor in the odds of
receiving FDA approval after phase III.
REFERENCES
-
Dan
Ross is a Freshman at the University of Pennsylvania.
EMAIL
rossds@sas.upenn.edu
Joseph Straton, MD, MSCE
is the faculty sponsor for this submission. He is
an Assistant Professor of Family Practice and Community
Medicine at the University of Pennsylvania.
ADDRESS
Penn Family Care at St. Leonard’s Court, Penn
Presbyterian Medical Center, Suite 205, 3819 Chestnut
St, Philadelphia, PA 19104 EMAIL
joseph.straton@uphs.upenn.edu |
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Byock, Ira. "Palliative Care and the Ethics of Research:
Medicare, Hospice, and Phase I Trials." Journal of Supportive
Oncology 1 (2003): 139-141. 17 Dec. 2005 <http://www.supporitveoncology.net>.
- Casarett, David J., and Jason H. T. Karlawish. "Are Special
Ethical Guidelines Needed For Palliative Care Research?"
Journal of Pain and Symptom Management 20 (2000): 130-139.
- Casarett, David J., Carol B. Stocking, and Mark Siegler. "Would
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Arrest is Iatrogenic?" Journal of General Internal Medicine
14 (1999): 35-38.
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- "Hospice Facts and Statistics." Hospice Association
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7 Nov. 2005 <http://www.nahc.org/consumer/hpcstats.html>.
- McMamamen, Erin. Personal interview. 7 Nov. 2005.
- “National Hospice and Palliative Care Organization Definition
of Hospice.” Center to Advance Palliative Care Manual.
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McGraw-Hill, Inc., 1990.
- Wit. Dir. Mike Nichols. Perf. Emma Thompson. Videocassette.
HBO, 2001.
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