PMID- 30141117 OWN - NLM STAT- MEDLINE DCOM- 20190626 LR - 20190626 IS - 1573-904X (Electronic) IS - 0724-8741 (Linking) VI - 35 IP - 10 DP - 2018 Aug 23 TI - Formulation of High-Performance Dry Powder Aerosols for Pulmonary Protein Delivery. PG - 195 LID - 10.1007/s11095-018-2452-z [doi] AB - PURPOSE: Pulmonary delivery of biologics is of great interest, as it can be used for the local treatment of respiratory diseases or as a route to systemic drug delivery. To reach the full potential of inhaled biologics, a formulation platform capable of producing high performance aerosols without altering protein native structure is required. METHODS: A formulation strategy using Particle Replication in Non-wetting Templates (PRINT) was developed to produce protein dry powders with precisely engineered particle morphology. Stability of the incorporated proteins was characterized and the aerosol properties of the protein dry powders was evaluated in vitro with an Andersen Cascade Impactor (ACI). RESULTS: Model proteins bovine serum albumin (BSA) and lysozyme were micromolded into 1 mum cylinders composed of more than 80% protein, by mass. Extensive characterization of the incorporated proteins found no evidence of alteration of native structures. The BSA formulation produced a mass median aerodynamic diameter (MMAD) of 1.77 mum +/- 0.06 and a geometric standard deviation (GSD) of 1.51 +/- 0.06 while the lysozyme formulation had an MMAD of 1.83 mum +/- 0.12 and a GSD of 1.44 +/- 0.03. CONCLUSION: Protein dry powders manufactured with PRINT could enable high-performance delivery of protein therapeutics to the lungs. FAU - Wilson, Erin M AU - Wilson EM AD - Division of Pharmacoengineering and Molecular Pharmaceutics Eshelman School of Pharmacy, University of North Carolina at Chapel Hill,, Chapel Hill, North Carolina, USA. FAU - Luft, J Christopher AU - Luft JC AD - Division of Pharmacoengineering and Molecular Pharmaceutics Eshelman School of Pharmacy, University of North Carolina at Chapel Hill,, Chapel Hill, North Carolina, USA. FAU - DeSimone, Joseph M AU - DeSimone JM AD - Division of Pharmacoengineering and Molecular Pharmaceutics Eshelman School of Pharmacy, University of North Carolina at Chapel Hill,, Chapel Hill, North Carolina, USA. desimone@unc.edu. AD - Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. desimone@unc.edu. AD - Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill,, Chapel Hill, North Carolina, USA. desimone@unc.edu. AD - Department of Chemical and Biomolecular Engineering, North Carolina State University,, Raleigh, North Carolina, USA. desimone@unc.edu. LA - eng GR - HDTRA1-13-1-0045/Defense Threat Reduction Agency/ PT - Journal Article DEP - 20180823 PL - United States TA - Pharm Res JT - Pharmaceutical research JID - 8406521 RN - 0 (Aerosols) RN - 0 (Powders) RN - 27432CM55Q (Serum Albumin, Bovine) SB - IM MH - Administration, Inhalation MH - Aerosols/*chemistry MH - Chemistry, Pharmaceutical MH - Drug Delivery Systems/methods MH - Dry Powder Inhalers MH - Humans MH - *Lung MH - Particle Size MH - Powders/*chemistry MH - Serum Albumin, Bovine/*chemistry OTO - NOTNLM OT - aerosols OT - dry powder inhalers OT - particle engineering OT - pulmonary protein delivery EDAT- 2018/08/25 06:00 MHDA- 2019/06/27 06:00 CRDT- 2018/08/25 06:00 PHST- 2018/05/04 00:00 [received] PHST- 2018/06/20 00:00 [accepted] PHST- 2018/08/25 06:00 [entrez] PHST- 2018/08/25 06:00 [pubmed] PHST- 2019/06/27 06:00 [medline] AID - 10.1007/s11095-018-2452-z [pii] AID - 10.1007/s11095-018-2452-z [doi] PST - epublish SO - Pharm Res. 2018 Aug 23;35(10):195. doi: 10.1007/s11095-018-2452-z.