This excerpt taken from the GENZ 10-K filed Mar 1, 2007.
Regulation of Gene Therapy Products. In addition to FDA requirements, the National Institutes of Health have established guidelines providing that transfers of recombinant DNA into human subjects at NIH laboratories or with NIH funds must be approved by the NIH Director. The NIH has established the Recombinant DNA Advisory Committee to review gene therapy protocols. We expect that many of our gene therapy protocols will be subject to review by the Recombinant DNA Advisory Committee. In the United Kingdom, our gene therapy protocols will be subject to review by the Gene Therapy Advisory Committee and in Germany, these protocols will be subject to review by the Commission for Somatic Cell Therapy. Greater government regulation of gene therapy products may lead to regulatory delays, increased development costs, and negative public perception of the gene therapy products we are developing.