|
Internal Medicine Research Associates, Inc. (IMRA) is an independent clinical
research site specializing in outpatient Phase II through IV clinical trials.
Our investigators participate in Pharmaceutical, Biological, and Medical Device
product development. Before a pharmaceutical company can initiate testing of
new compounds in humans, it must conduct extensive preclinical or laboratory
research. This research typically involves years of experiments in animal and
human cells. If these stages of testing are successful, a pharmaceutical
company provides this data to the Food and Drug Administration (FDA),
requesting approval to begin testing the drug in humans. This is called an
Investigational New Drug application (IND) IMRA specializes in managing and
coordinating clinical studies for the pharmaceutical industry that involves
testing of new chemical and medical device entities on human volunteers. We
work with physicians who are experienced in their field of medicine to
coordinate volunteers who are interested in participating in the development of
new drugs and treatments. Patient volunteers can be healthy individuals or
patients who are looking for a new treatment for their current illness. There
are many types of studies you can participate in. If you have an interest in
participating please contact Contact Us for more information.
Funding for clinical research comes from both the federal government (through
the National Institutes of Health) and private industry (pharmaceutical and
biotech companies). The sponsor of the research contracts with physicians, who
may work in a wide variety of health-care settings, to conduct the clinical
trial. Physicians are typically paid on a per-patient basis. The medical care
is often provided free to the patient. Patients may also be paid a small fee to
participate in a clinical trial. The clinical testing of experimental drugs is
normally done in three phases, each successive phase involving a larger number
of people. Once the FDA has granted a New Drug Approval (NDA), pharmaceutical
companies also conduct post marketing or late phase three/phase four studies to
assess and collect additional safety data.
Phase I testing in humans is done in a small number of healthy volunteers (20 to
100), who are usually paid for participating in the study. The study is
designed to determine what happens to the drug in the human body--how it is
absorbed, metabolized, and excreted. A phase I study will investigate side
effects that occur as dosage levels are increased. This initial phase of
testing typically takes several months. About 70 percent of experimental drugs
pass the initial phase of testing.
Once a drug has been shown to be safe, it must be tested for efficacy. This
second phase of testing may last from several months to two years, and involve
up to several hundred patients. Most Phase II studies are randomized trials.
One group of patients will receive the experimental drug, while a second
"control" group will receive a standard treatment or placebo. Often these
studies are "blinded" - neither the patients nor the researchers know who is
getting the experimental drug. In this manner, the study can provide the
pharmaceutical company and the FDA comparative information about the relative
safety of the new drug, and its effectiveness. Only about one-third of
experimental drugs successfully complete both Phase I and Phase II studies.
In a Phase III study, a drug is tested in several hundred to several thousand
patients. This large-scale testing provides the pharmaceutical company and the
FDA with a more thorough understanding of the drug's effectiveness, benefits,
and the range of possible adverse reactions. Most Phase III studies are
randomized and blinded trials. Phase III studies typically last several years.
Seventy to 90 percent of drugs that enter Phase III studies successfully
complete this phase of testing. Once a Phase III study is successfully
completed, a pharmaceutical company can request FDA approval for marketing the
drug.
In late Phase III/Phase IV studies, pharmaceutical companies have several
objectives: (1) studies often compare a drug with other drugs already in the
market; (2) Studies are often designed to monitor a drug's long-term
effectiveness and impact on a patients quality of life; and (3) Many studies
are designed to determine the cost-effectiveness of a drug therapy relative to
other traditional and new therapies. Should I participate in Clinical Research?
People participate in clinical research for a variety of reasons. People who
volunteer for Phase II and Phase III trials can gain access to promising drugs
long before these compounds are approved for the marketplace. They typically
will get excellent care from the physicians during the course of the study.
This care also may be free. The patient's rights and safety are protected in
two important ways. First, any physician awarded a research grant by a
pharmaceutical company or the NIH must obtain approval to conduct the study
from an Institutional Review Board (IRB). The IRB, which is usually composed of
physicians and lay people, is charged with examining the study's protocol to
ensure that the patient's rights are protected, and that the study does not
present an undue or unnecessary risk to the patient. Second, anyone
participating in a clinical trial in the United States is required to sign an
"informed consent" form. The informed consent details the nature of the study,
the risks involved, and what my happen to a patient in the study. The informed
consent tells patients that they have a right to leave the study at any time.
Other questions to ask include:
-
How long will the trial last?
-
Where is the trial being conducted?
-
What treatments will be used and how? What is the main purpose of the trial?
-
How will patient safety be monitored?
-
Are there any risks involved?
-
What are the possible benefits?
-
What are the alternative treatments besides the one being tested in the trial?
-
Who is sponsoring the trial?
-
Do I have to pay for any part of the trial?
-
What happens if I am harmed by the trial?
-
Can I opt to remain on this treatment, even after termination of the trial?
Patients considering participating in clinical research should talk about it
with their physicians and medical caregivers. They also should seek to
understand the credentials and experience of the individuals and the facility
involved in conducting the study. The National Institutes of Health provides
detailed information for patients considering participating in a clinical trial
on their web site in the section entitled
An Introduction to Clinical Trials.
|