Types of Clinical TrialsPilot Studies and Feasibility Studies, Prevention Trials, Screening Trials, Treatment Trials, Multistage Multiarm Trials (MAMS), Cohort Studies, Case-Control Studies, Cross-Sectional Studies. Treatment research usually involves intervention such as medications, psychotherapy, new devices, or new approaches to surgery or radiation therapy. Prevention research looks for better ways to prevent disorders from developing or recurring. Different types of preventive research may study medications, vitamins, vaccines, minerals, or lifestyle changes.
Diagnostic research refers to the practice of looking for better ways to identify a particular disorder or condition. Screening research aims to find the best ways to detect certain disorders or health conditions. Quality of Life Research explores ways to improve comfort and quality of life for people with chronic illness. Genetic studies aim to improve the prediction of disorders by identifying and understanding how genes and diseases may be related.
Research in this area can explore the ways in which a person's genes make them more or less likely to develop a disorder. This can lead to the development of tailored treatments based on the patient's genetic makeup. There are several types of clinical trials for cancer, including treatment trials, prevention trials, screening tests, palliative and supportive care trials, and natural history studies. Each type of essay is designed to answer different research questions and will help researchers learn things that will help people in the future.
Many newer treatment trials require people to be tested for tumors for genetic changes to see if treatments that target specific changes might work better for them than standard treatments. Cancer prevention trials are studies with healthy people. In most prevention trials, people who participate do not have cancer, but are at high risk of developing the disease or have had cancer and are at high risk of developing a new cancer. These studies look at cancer risk and ways to reduce it.
There are two types of prevention trials, action studies and agent studies. The goal of cancer screening tests is to test new ways to detect the disease early, when it can be more easily treated. An effective screening test will reduce the number of deaths from cancer being evaluated. In clinical trials that compare a new product or therapy to an existing one, researchers try to determine if the new product is as good or better than the existing one.
Treatments that have been shown to work in phase II clinical trials must be successful in one more phase before they are approved for general use. In the United States, when phase III clinical trials (or sometimes phase II trials) show that a new drug is more effective or safer than the current treatment, a new drug application (NDA) is submitted to the Food and Drug Administration (FDA) for approval. Many clinical trials seek to see if people receiving the new treatment live longer than most people without treatment. After completing a clinical trial, researchers carefully examine the information collected during the study before making decisions about the meaning of the findings and the need for further testing.
Clinical trials also have a research team that may include doctors, nurses, social workers and other health professionals. In clinical trials and cohort studies, the transfer of subjects from the group in which they were at the beginning of observation to another group. Before joining a clinical trial, you must provide information that allows the research team to determine whether or not you can safely participate in the study. By expanding on the following questions, you can read the answers to the most frequently asked questions about participating in a clinical trial.
After a clinical trial or study is complete, researchers will collect and analyze the data to see what next steps are needed as a result of the findings. In general, clinical trials are designed to increase medical knowledge related to the treatment, diagnosis and prevention of diseases or conditions. Clinical trials offer hope to many people and the opportunity to help researchers find better treatments for others in the future. It is essential that clinical trials include people with a variety of lived experiences and living conditions, as well as characteristics such as race and ethnicity, age, sex and sexual orientation, for all communities to benefit from scientific advances.
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