Answers:
Gene psychotherapy is mortal developed to treat disease close to cystic fibrosis. In conditions similar to CF and gene mutation cause the condition. By deliver a copy of the non-mutated functioning genes (this can be done through vectors such as viruses) the disease can be treated.
Much of gene treatment is still surrounded by the development/experimentation stage and consequently at hand is still no cure for conditions close to cystic fibrosis.
A recent gene analysis study be just now discontinued because of a mortal hostile response. I forgot which condition the psychotherapy be for, but it have cause a foremost setback surrounded by this singular irrefutable study.