Gene therapy refers to a set of therapies that treat a disease by repairing and correcting gene defects.
This treatment is a technique for correcting defective genes that are responsible for causing the disease
In the past, all parts of gene therapy relied on a vector to transfer the healing agent into the cell. But now other methods have been proposed. The first clinical practice of gene therapy was performed in 1990 by the National Institutes of Health.
In the medicine field gene therapy(also called human gene transfer) is the therapeutic delivery of nucleic acid into a patient’s cells as a drug to treat disease. The regulatory authorities such as FDA and EMA have approved only a limited number of gene therapy products for sale in the United States and Europe. Hundreds of research studies (clinical trials) are under way to test gene therapy as a treatment for genetic conditions, cancer, and HIV/AIDS.