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What is a clinical trial?
A clinical trial tests a new drug in humans after extensive research
has taken place in preclinical studies. Clinical studies are carefully
designed to protect patient safety and evaluate the effects of a
potential medication or device in a group of healthy volunteers
or patients suffering from a specific disease. The U.S. Food and
Drug Administration (FDA) reviews all trial designs. Clinical studies
are conducted in progressive phases and are required steps in making
new drugs available for people in need.
Who can participate in
a clinical trial?
People with the health condition being studied as well as healthy
people can volunteer to be in clinical trials, depending on the
phase of the study. Every clinical trial has inclusion and exclusion
criteria. The physician conducting the study will review each volunteer’s
medical history and study requirements to determine who can participate.
The study physician will also explain known risks, discomforts,
study protocol and potential benefits to volunteers participating
in the study.
What is meant by a blinded
study?
In a double-blinded study, neither the physicians nor the volunteers
know who receives the placebo (a non-active substance that is identical
in appearance to the drug being studied) and who receives the investigational
drug. In a single-blinded study, only the physician knows. A placebo
is used as a comparison to help evaluate what normally happens to a patient with
a specific condition.
What are the responsibilities
of someone participating in a clinical trial?
It is important that people participating in a clinical trial follow
the established protocol to ensure their safety and to provide the
needed information so that the drug can be properly evaluated by
regulatory authorities. A protocol is a description of the study
and rules for its conduct. It includes an explanation of the patient’s
responsibilities, including doctor visits, dosing schedules and
rules regarding use of additional medications. In some trials, participants
may also be asked to keep a journal to record their experiences
with the investigational drug.
Information can also be obtained by leaving a message on the following Isis toll-free number: 1-800-679-ISIS (4747), or by sending us an e-mail at trialinfo@isisph.com. These latter two channels are most appropriate if you'd like to speak with one of our clinical operations professionals about qualifying as a site or about supplying external services and support for clinical trials.