<P> The first attempt , an unsuccessful one , at gene therapy ( as well as the first case of medical transfer of foreign genes into humans not counting organ transplantation ) was performed by Martin Cline on 10 July 1980 . Cline claimed that one of the genes in his patients was active six months later , though he never published this data or had it verified and even if he is correct , it 's unlikely it produced any significant beneficial effects treating beta - thalassemia . </P>
<P> The first attempt , an unsuccessful one , at gene therapy ( as well as the first case of medical transfer of foreign genes into humans not counting organ transplantation ) was performed by Martin Cline on 10 July 1980 . Cline claimed that one of the genes in his patients was active six months later , though he never published this data or had it verified and even if he is correct , it 's unlikely it produced any significant beneficial effects treating beta - thalassemia . </P>
first clinical gene therapy was done for the treatment of
first clinical gene therapy was done for the treatment of
beta - thalassemia
beta - thalassemia