Frequently Asked Questions
What is Clinical Research?
Clinical research is a way for doctors and scientists to answer questions about healthcare. Research can find better ways to prevent, diagnose or treat diseases and disorders. There are many kinds of clinical research. For example, some studies test new medicines or devices. Other studies use interviews to learn about health problems.
What is a Protocol?
A protocol is a written plan that describes the goal of a research study and how the study will be conducted. For example, it describes the type of people needed to take part in the study. The protocol also outlines any procedures the participants will undergo.
What is a Clinical Research?
Drugs and medical devices must be proven safe and effective in people before the U.S. Food and Drug Administration (FDA) will approve them for general use. A clinical trial is a study that tests a drug or medical device to see if it is safe and effective for treating people. The government has strict rules for clinical trials. These rules help to ensure that study participants are safe.
What are clinical trial "phases"?
Clinical trials that test drugs go through four stages or "phases."
A Phase I clinical trial is the first time an experimental drug is tested in humans. It is usually given to a small group of healthy participants. The purpose of a Phase I study is to gather information on the drug's safety.
A Phase II clinical trial is usually the second stage of testing a new drug in humans. This phase commonly involves 100 to 300 participants. The participants usually have the disease for which the experimental drug is being tested. The purpose of this phase is to gather additional information on safety and to see how effective the drug is.
A Phase III clinical trial commonly involves 1,000 to 3,000 participants that have the disease for which the experimental drug is being tested. This phase usually compares the experimental drug to the current approved treatment for the disease. Side effects and effectiveness are also monitored during a Phase III trial.
A Phase IV clinical trial is done after the drug has been approved for marketing. This stage of testing usually compares the drug to a competing drug or looks at the drug in new types of patients. Long-term side effects of the drug are also monitored in this phase.
What types of study participants are needed
Many types of people are needed to participate in research studies. Some studies need healthy persons. Other studies need persons with certain health problems. Persons of all ages and from all ethnic groups are needed.
Why do people participate in research studies?
Every study is different, and the reasons people participate are different. Some reasons people take part in a study are:
What are the risks of participating in a research study?
The risks for each study are different. Some possible risks of taking part in a research study are:
How are study participants protected?
These methods of protection do not eliminate all possibility of risk. They do help to ensure study participants will be as safe as possible. What is informed consent?
Before taking part in a study, each person will get a consent form that contains important written information about the study. It is important to read and understand the information in this form. The researcher or member of the research team will also talk to the person about the information contained in the form. The person should be sure all of his or her questions are answered before signing the consent form. A signed consent form is not a contract-a participant can leave a study at any time.
What questions should I ask before deciding to participate in a research study?
Before you decide to participate, you should ask as many questions as you need to in order to be sure you understand the study. Some questions you might want to ask are:
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