Two shadows have recently been cast over the exciting fieldof gene therapy. One was cast by the unfortunate death of an18-year-old man at the University of Pennsylvania in 1999.1The patient was part of a trial in which an adenovirus containinga gene for ornithine transcarbamylase was infused into patientswith partial deficiencies of the enzyme. The death highlightedthe potential dangers of the direct administration of adenovirusesand, perhaps, other viruses to patients. The second shadow wascast by a clinical trial involving children with X-linked severecombined immunodeficiency (SCID).2 The trial had an added measureof . . . [Full Text of this Article]
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From the Center for Gene Therapy, Tulane University Health Sciences Center, New Orleans.
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