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From a Nurse's Perspective
Clinical Trials
by
Denise Reinke, MS, NP
Oncology Nurse Practitioner, Sarcoma Program
University of Michigan
[Editor's Note:
There is a small glossary at the end of this article that might prove useful
to some readers.]
New treatment options are identified through clinical trial
research. There are several different ways in which clinical trials are
developed. One way is the development of a clinical trial concept by a
pharmaceutical company. A company will have a product that they believe from
their testing may be helpful to patients. They develop a trial and seek
physicians to participate by enrolling patients. Another way is investigator
initiated clinical trials. The investigator will develop an idea, write a
protocol and seek financial support to conduct the clinical trial. The cost
of doing clinical research is dependent upon the complexity of a trial and
number patients to be enrolled. It may cost several million dollars to
complete one clinical trial.
Trials require a specified number of patients to answer the
question being asked. Statisticians work with the investigators to define
the appropriate number of patients needed so that the results can be
analyzed and be considered in terms of statistical significance. Prior to
opening a clinical trial to patients, the trial must be reviewed and
approved by institutional review boards (IRBs)
and at some centers scientific review boards. The scientific board includes
experts who evaluate the scientific merit of a study. The institutional
board is primarily concerned about protecting patients. Before a drug can be
provided to patients not on a clinical trial, it must be reviewed and
approved by government regulatory agencies. In the United States the Food
and Drug Administration (FDA)
approves drugs and in Europe the European Medicines Agency (EMEA)
approves drugs. Each of these agencies have rigorous review processes to
ensure that new drugs approved have been proven through clinical trials to be
safe and effective.
Given that sarcoma is a relatively uncommon type of cancer,
investigators may collaborate to do clinical trial research. For some
clinical trials a single center may not be able to enroll enough patients to
answer a clinical trial question in a timely fashion. Therefore, centers may
work together with several centers opening the same trial. Cooperative
groups work together to pool their patients “resources” and often times will
collaborate on the trial concept, design and ultimate goal or endpoint to be
studied in essence pooling their intellectual “resources”. The National
Cancer Institute (NCI)
is a United States government agency that funds cooperative group clinical
research in a variety of cancers through its
Clinical Trials Cooperative Group Program.
At this time, the Children’s Oncology Group (COG)
is an NCI funded cooperative group that conducts sarcoma clinical research.
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Your
Questions about Clinical Trials are Important
The Sarcoma
Alliance for Research through Collaboration (SARC) is a
non-for-profit consortium of sarcoma experts who collaborate
together to do clinical research. A goal of this organization is to
design and conduct clinical research that will result in new and
better treatment options for patients with sarcoma.
Given SARC
members have expertise in sarcoma clinical research, I would like to
invite you to pose your questions to these experts and I will have
them respond to them via the SARC website.
Whether you
are considering becoming involved in a clinical trial, are already
enrolled in one, or have completed one, I am very much interested in
questions that you might have about clinical trials. Please take
time to download and complete the Questions and Concerns about Clinical Trials
questionnaire. You can either e-mail it to me or send it to me by
surface mail.
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Click
here for a Microsoft Word version of the questionnaire.
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Click
here for an Adobe PDF version of the questionnaire.
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For more on SARC, see Dr. Robert Maki's Op Ed piece,
Sarcoma Alliance for Research through Collaboration
(SARC): An effort to perform clinical trials efficiently and effectively for
people with sarcoma, which appeared in the December 2007
issue of ESUN. |
This column includes two articles about clinical research
from distinct perspectives. One is by Kelly Scheu, MS, NP-C who is a nurse
practitioner in a private hematology oncology practice in Jackson, Michigan.
Prior to completing her NP training, Kelly most recently worked as a
research nurse at Memorial Sloan Kettering with the sarcoma team. She
provides insights to help better understand clinical trials. The second
article is a view of clinical research from the patient perspective. While
navigating “the peaks and potholes”, Marcia gives a view of the ultimate
benefit that she received by participation in a clinical trial. Finally, a
set of "Additional Considerations" that appear on the Liddy Shriver Sarcoma
Initiative's website are given. Together nurse and patient help us better
understand sarcoma clinical research.
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Sarcoma
Clinical Trials
Points
to Consider
Kelly Scheu, MS, NP-C
Foote Hospital, Oncology Services
Jackson, Michigan
Sarcomas are an uncommon type of cancer. Over the
past forty years, sarcomas have been treated with chemotherapy.
Standard chemotherapy unfortunately has not been effective for all
patients. New treatment options are needed. Sarcoma clinical trials
are one way to identify new therapies. Sarcoma clinical trials
provide an opportunity to have access to new drugs which have the
potential to improve outcomes and hopefully cure sarcoma.
The words “clinical trial” may evoke uneasiness for
some people. The thought of having a new drug that is still in the
process of being studied may be concerning. Understanding the
different phases of clinical trials and as well as having strategies
to navigate the clinical trial system may help alleviate concerns.
There are 4 phases to clinical trials.
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Phase 1 clinical trials are the earliest stage of
drug development. A phase 1 trial attempts to determine the
dosing of a particular drug and the side effects through
rigorous monitoring of the patients and frequent testing of
blood at timed intervals. Phase 1 clinical trials are
generally not specific to any one type of cancer. Often
small numbers of volunteers are enrolled in these types of
trials. |
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Phase 2 trials include more volunteers who have a
certain type of cancer that the researchers believe may be
helped by the new treatment. In phase 2 trials, researchers
seek to gather further safety data (information about side
effects) and evidence of potential beneficial effects. If
the drug proves to be effective and the side effects
acceptable, a drug may then be studied in a Phase 3 clinical
trial. |
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Phase 3 trials study a drug in a large number of
volunteers with a specific cancer. This phase further tests
the drug’s effectiveness and in some cases compares a new
drug to a standard therapy to see if one is better than the
other. Phase 2 and Phase 3 clinical trials can sometimes
involve a “control” which means one person will get the new
drug and another will get the standard therapy or placebo.
The process is usually determined by randomization which is
like a “flip of a coin”. |
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Phase 4 trials are conducted after a product is
already approved and on the market to find out more about
the treatment’s long-term benefits and risks. |
Many drugs used in treatment today, were initially
evaluated in phase 1, 2 or 3 clinical trials prior to approval by
the FDA. Clinical trials have rigorous regulations and guidelines to
ensure the safety of all volunteers.
There are several important things to remember when
considering a clinical trial.
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Identifying what trials are available is the first step. The
internet may be helpful. The National Cancer Institute has a
website for the Cancer Information Service that lists trials
that are currently open for patient participation. The web
address is
www.cancer.gov/clinicaltrials or the telephone number is 1-800-422-6237. Many major sarcoma
centers have the trials that are open for participants
listed at their institutional website. Healthcare providers
may have information about studies being conducted at other
sarcoma centers as well as patient advocacy groups may be a
helpful resource for locating clinical trials.
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Second, it is important to consider the impact participating
in a clinical trial will have on one’s personal life, such
as the time requirement, travel and expense. Discussing the
potential impact with family and friends can help a patient
and family be prepared. |
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Third, it is helpful to know and understand what the trial
is about. Asking questions and understanding your rights as
a trial participant is imperative. It is important to
understand that a person may withdraw from a clinical trial
if at anytime they feel it is no longer in their best
interest to participate. The more knowledge one has can lead
to a more confident decision. |
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Finally, it is important that an individual decide what is
best for them. One can consult with family and friends but
ultimately it is the decision of the individual.
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Clinical trials provide valuable new options for
treatment in the fight for a cure. The best way to determine
effective new treatments is through systematic evaluation done
within clinical trials. |
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Clinical Trials
from a Participant's Perspective
Peaks, Potholes
& Paralyses
Marcia E. Baker, D.O., FACOI
Grosse Point, Michigan
Living inside a clinical trial is a journey of peaks
and potholes. Peaks are easy. The highest is waking up alive.
Potholes litter the path too and are usually annoyances or
inconveniences. When they occur, I try to remember what G. K.
Chesterton said, “An inconvenience is an adventure wrongly
considered.”
The busy ER provided one such recent adventure. Sick
babies, strokes, motor vehicle accidents, and traumas from the
nearby tornado hit to a motor home park filled the nooks and
crannies of a small town in southwestern Missouri in January. When
CODE BLUE was announced overhead, my first impulse was to rush to
Room 214 and save the day. Then I remembered I hadn’t saved anyone’s
day for eighteen months when metastatic leiomyosarcoma caused me to
leave my beloved internal medicine practice. I was in the ER not as
a physician but as a cancer patient whose oncologist had referred
for evaluation of a suspected deep vein thrombosis (DVT). My port used for chemo was
inflamed and tender. After twelve hours of waiting for the true
emergencies to be seen, I was told the Doppler was negative and
released.
The deepest pothole in my journey came with the news
that without chemo I had less than a year to live. My options
included several unappealing traditional chemo regimen and ET-743, a
promising drug available only via clinical trial in limited supply
in only a few sites across the country. Through the intervention of
my oncology team, I was referred to another center for consideration
of an expanded access clinical trial. Five months into my clinical
trial, I am filled with hope. My CT scans have demonstrated no
progression of metastatic disease. Stable disease is considered a
response.
Gratitude continues to be a constant companion that I
have been given this chance to participate in this drug trial. Every
day I live breeds hope that I will survive to benefit from advances
in research that may bring more definitive treatment. In between the
peaks of gratitude and hope exists the reality of traveling six
hundred miles round trip for a 24-hour infusion of chemo every
twenty-one days. Although my physical side effects are limited to
annoying potholes of nausea, gastroesophageal reflux, constipation,
anorexia, and fatigue, my mind and soul suffer more limiting blows.
A life-suffocating fatigue breeds a mental paralysis that dulls my
ability to experience pleasure, animation, or hope.
Fortunately, this paralyzing inertia lasts for only a
week or so of the cycle. This shadow self is transient and precedes
a rebirth of desire, joy, and hope. During these peaks I have
enjoyed traveling to the Rocky Mountains, Greece, Grand Cayman, and
spending more time with my family. There is nothing like the loss of
vitality to make its return a cause for uninhibited celebration.
Life is a gift. It is precious beyond description. I will be forever
grateful for those who continue to do cancer research and champion
the cause of those like me who depend on the kindness of strangers
for our very life. |
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Additional
Considerations
The Liddy Shriver Sarcoma
Initiative has an extensive set of abstracts of clinical trials on its
website for sarcoma
patients and clinicians to consider.
Click here to view them. Here are some additional
insights shared on the pages of the Liddy Shriver Sarcoma Initiative's
clinical trial web pages.
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Suppose you
are going to visit with the team conducting the clinical
trial to see if you are a candidate for it. Here are
some suggestions about what
you should bring to your first appointment with the
clinical trial doctors.
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Your medical history. The more of
your medical history the doctor has, the
“better” the appointment might go. The medical
history is used to determine if you can
participate in the trial or not. Details of the
chemotherapy drugs that you have had (which
drugs, their frequency, dosing, etc), pathology
reports, CT scans, MRI scans, and X-Rays can
often be very useful to aid the medical staff in
making this determination. Fill out as much of
the paper work ahead of time as possible.
Have your insurance company approve your
participation and provide the cancer center with
the appropriate approval information before your
visit. |
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Your questions about the clinical
trial itself. What can you expect? What will be
done, how often, when, and for how long? Under
what set of circumstances would you not be
allowed to continue on the clinical trial after
you have started it? Since clinical trials
involve the collection of research data for the
oncologists and research staff, there are
frequent blood tests (called "PK" studies, where
PK = pharmacokinetic) which are collected over
the first 2-3 cycles of the treatment. These PK
studies normally have to be done at the cancer
center where the clinical trial is being
conducted |
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Your questions about the drugs
that will be used, their frequency, dosing, side
effects, precautions, known results, etc.
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Your questions about the tests
you’ll need and where they can be done. You may
also have to undergo baseline and post treatment
tests (e.g., CT scans, MRIs, PET scans, and/or
X-Rays) as appropriate. These tests may or may
not be able to be done elsewhere (e.g., near
your home). Where these tests are done may be a
consideration if the site conducting the
clinical trial is relatively far from your home.
You may need to plan to stay overnight near the
cancer center depending on the location of the
cancer center, how long the treatment takes, how
long you are to be observed after the treatment,
and when and where any after-treatment tests are
scheduled. There are programs that might be able
to help family with travel expenses associated
with getting to and from cancer treatment
centers (see the Sarcoma Post-It®
Links note in the right hand column, above).
Make sure when you call and make the appointment
to get detailed directions to the cancer center
facility, particularly if it is another city or
state. |
When considering if a clinical trial is
“worth” your time (in contrast to only “aiding science”
by your participation in it), you probably want answers
to a number of questions. You can get help in obtaining
answers to your questions and in understanding the
issues involved from establishing a relationship with
the Research Assistant or Research Nurse associated with
the clinical trial. Remember to do your research before
applying for a clinical trial. Some sample questions for
the Research Assistant or the Research Nurse are:
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Are there currently or have there
been patients with my cancer on the trial? Known
results? |
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Are there currently or have there
been similar trials elsewhere in the US or
abroad? What was learned about dosing and types
of cancer the drugs have been successful with in
these trials? |
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Is this a multi-center trial? Are
there any results known from using the drugs in
other centers? |
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Has the protocol been used on a
“compassionate use” basis? Compassionate use is
discussed below. |
Making
Your Decision
Clinical
trials are not only to be considered as third line
options. Dr. Albritton once commented, “I
think it’s important to understand when to consider what
phase of a clinical trial might be appropriate for you.
Sometimes untreated patients enter Phase III clinical
trials. Indeed, at initial diagnosis of Ewing’s sarcoma,
you would only want to consider a Phase III clinical
trial. At first relapse or progression of the disease,
you would want to consider Phase II trials that are
specific to Ewing's sarcoma. Third line, you would want
to consider phase II trials perhaps for all types of
sarcoma or solid tumors. Fourth line, you would want to
consider Phase I trials. If you have tried these other
routes and have moved more to a mode of realizing there
is unlikely to be a drug that will cure the disease, but
still want to be getting
a drug, and contributing to advancement of Ewing's
treatments, this may be time for becoming involved in a
Phase I trial.”.
In the end, you will contrast participation in the
clinical trial with your other treatment options. Do the
possible outcomes and risks seem acceptable to you and
your cancer given the currently known results about the
chemotherapy agents involved? How will your
participation affect your ability to participate in
future clinical trials involving the same or other
drugs? Will there be some other, more appropriate or
more interesting clinical trials that might be opening
up soon? None of these are easy questions to answer. You
will want to seek the advice of your oncologist and your
family. If you do decide to enter a clinical trial, be
prepared to complete additional forms and paperwork and
to establish a specific schedule of visits for
treatments and tests, so be sure to allow enough time
and to bring your calendar with you to do this. We urge
you to document your experience in as much detail as
possible so that it can ultimately be of benefit to
others. |
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Mini Glossary
Taken from
NCI Dictionary of Cancer Terms
Clinical trial
A type of research study that tests how well new
medical approaches work in people. These studies test new methods of
screening, prevention, diagnosis, or treatment of a disease. Also
called a clinical study.
Endpoint
In clinical trials, an event or
outcome that can be measured objectively to determine whether the
intervention being studied is beneficial. The endpoints of a
clinical trial are usually included in the study objectives. Some
examples of endpoints are survival, improvements in quality of life,
relief of symptoms, and disappearance of the tumor.
Expanded access trial
A way to provide an investigational therapy to a
patient who is not eligible to receive that therapy in a clinical
trial, but who has a serious or life-threatening illness for which
other treatments are not available. Expanded access allows a patient
to receive promising but not yet fully studied or approved cancer
therapies when no other treatment option exists. Also called
compassionate use trial.
FDA
The Food and Drug Administration (FDA)
is an agency in the U.S. federal government whose mission is to
protect public health by making sure that food, cosmetics, and
nutritional supplements are safe to use and truthfully labeled. The
FDA also makes sure that drugs, medical devices, and equipment are
safe and effective, and that blood for transfusions and transplant
tissue are safe.
Investigator
A researcher in a clinical trial or clinical study.
IRB
A group of scientists, doctors, clergy, and consumers
that reviews and approves the action plan for every clinical trial.
There is an IRB at every health care facility that does clinical
research. IRBs are designed to protect the people who take part in a
clinical trial. They check to see that the trial is well designed,
legal, ethical, does not involve unnecessary risks, and provides
safeguards for patients. Also called Institutional Review Board.
Placebo
An inactive substance or treatment that looks the
same as, and is given the same way as, an active drug or treatment
being tested. The effects of the active drug or treatment are
compared to the effects of the placebo.
Placebo therapy
An inactive treatment or procedure that is intended
to mimic as closely as possible a therapy in a clinical trial. Also
called sham therapy.
Placebo-controlled
Refers to a clinical study in which the control
patients receive a placebo.
Protocol
An action plan for a clinical trial.
The plan states what the study will do, how, and why. It explains
how many people will be in it, who is eligible to participate, what
study agents or other interventions they will be given, what tests
they will receive and how often, and what information will be
gathered.
Statistically
Significant
Describes a mathematical measure of
difference between groups. The difference is said to be
statistically significant if it is greater than what might be
expected to happen by chance alone. Also called significant.
[Author's addition: Statistical
significance is achieved when the results of a trial are deemed
sufficiently reliable (not having occurred by chance) to support a
given hypothesis.]
Additional Terms
EMEA
The
European Medicines Agency (EMEA)
is a decentralized body of the European Union with headquarters in
London. Its main responsibility is the protection and promotion of
public health, through the evaluation and supervision of medicines
for human use.
Sponsor
Pharmaceutical companies, nonprofit
organizations, or other institutes, the National Cancer Institute
for example, may sponsor clinical trials. Pharmaceutical companies
fund studies because they must prove their new medication or
treatment is safe and effective via success in a clinical trial, in
order for it to become available to the public.
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Comments and Suggestions
Click here to send us
comments about this article. |
Drug Development:
Innovative Drug Development Approaches,
Final Report of the EMEA/CHMP Think-Tank Group on Innovative Drug
Development, March 2007
V5N1
ESUN Copyright © 2008 Liddy Shriver Sarcoma
Initiative.
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