Clinical research is a branch of healthcare science that determines the safety and effectiveness of medications, devices, diagnostic products and treatment regimens intended for human use. These may be used for prevention, treatment, diagnosis or for relieving symptoms of a disease. Clinical Research is different from clinical practice. In clinical practice one uses established treatments, while in clinical research evidence is collected to establish a treatment. Clinical research is often conducted at academic medical centers and affiliated research study sites.
A clinical trial is one type of clinical researchthat follows a pre-defined plan or protocol. It is conducted with human subjects (or on material of human origin such as tissues, specimens and cognitive phenomena) for which an investigator directly interacts with human subjects. By taking part in clinical trials, participants can not only play a more active role in their own health care, but they can also access new treatments and help others by contributing to medical research. These studies seek to identify the most effective and most efficient interventions, treatments, and services. NNC, Calcutta provides infrastructure and expertise to support the design, management and analysis of global multi-centretrials for investigators who conduct research with human beings.