PMID- 11589832 OWN - NLM STAT- MEDLINE DCOM- 20011207 LR - 20121115 IS - 1043-0342 (Print) IS - 1043-0342 (Linking) VI - 12 IP - 15 DP - 2001 Oct 10 TI - A phase I study of aerosolized administration of tgAAVCF to cystic fibrosis subjects with mild lung disease. PG - 1907-16 AB - Cystic fibrosis (CF) is one of the most common autosomal recessive disorders in North America, leading to significant morbidity and early mortality. The defect in the cystic fibrosis transmembrane conductance regulator protein (CFTR) function can be corrected in vitro by gene replacement with a wild-type gene. A Phase I, single administration, dose escalation trial was designed and executed to assess safety and delivery of tgAAVCF, an adeno-associated virus (AAV) vector encoding the human CFTR cDNA, by nebulization to the lungs of CF subjects. Four cohorts of three subjects each were administered increasing doses of the study agent, beginning with 10(10) DNase-resistant particles (DRP) and escalating in log increments up to 10(13) DRP. Sequential bronchoscopies were performed to gather analytical samples throughout the study. All 12 subjects completed the study. There were a total of 242 adverse events (AEs), six of which were defined as serious and three of which were defined as possibly being related to the study drug. A clear dose-response relationship was observed in vector gene transfer. A maximum of 0.6 and 0.1 vector copies per brushed cell were observed 14 days and 30 days, respectively, following nebulization of 10(13) DRP tgAAVCF, and this declined to nearly undetectable levels by day 90. Vector gene transfer was evenly distributed throughout the fourth airway generation following single-dose administration. RNA-specific PCR did not detect vector-derived mRNA. This Phase I trial shows that aerosolized tgAAVCF is safe and widely delivered to the proximal airways of CF subjects by nebulization. FAU - Aitken, M L AU - Aitken ML AD - Department of Medicine and Pediatrics, University of Washington, Seattle, 98195, USA. moira@u.washington.edu FAU - Moss, R B AU - Moss RB FAU - Waltz, D A AU - Waltz DA FAU - Dovey, M E AU - Dovey ME FAU - Tonelli, M R AU - Tonelli MR FAU - McNamara, S C AU - McNamara SC FAU - Gibson, R L AU - Gibson RL FAU - Ramsey, B W AU - Ramsey BW FAU - Carter, B J AU - Carter BJ FAU - Reynolds, T C AU - Reynolds TC LA - eng PT - Clinical Trial PT - Clinical Trial, Phase I PT - Journal Article PL - United States TA - Hum Gene Ther JT - Human gene therapy JID - 9008950 RN - 0 (CFTR protein, human) RN - 0 (Cytokines) RN - 0 (DNA, Complementary) RN - 126880-72-6 (Cystic Fibrosis Transmembrane Conductance Regulator) SB - IM MH - Adult MH - Alleles MH - Cells, Cultured MH - Cystic Fibrosis/genetics/*therapy MH - Cystic Fibrosis Transmembrane Conductance Regulator/*genetics MH - Cytokines/metabolism MH - DNA, Complementary/metabolism MH - Dependovirus/genetics MH - Dose-Response Relationship, Drug MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - *Gene Transfer Techniques MH - Genetic Therapy/*adverse effects MH - Genetic Vectors MH - HeLa Cells MH - Humans MH - Immunohistochemistry MH - Lung/physiology MH - Lung Diseases/*therapy MH - Male MH - Mutation MH - Nebulizers and Vaporizers MH - Polymerase Chain Reaction MH - Reverse Transcriptase Polymerase Chain Reaction MH - Time Factors EDAT- 2001/10/09 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/10/09 10:00 PHST- 2001/10/09 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/10/09 10:00 [entrez] AID - 10.1089/104303401753153956 [doi] PST - ppublish SO - Hum Gene Ther. 2001 Oct 10;12(15):1907-16. doi: 10.1089/104303401753153956.