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Lamy B, Tewes F, Serrano DR, Lamarche I, Gobin P, Couet W, Healy AM, Marchand S. New aerosol formulation to control ciprofloxacin pulmonary concentration. J Control Release 2017; 271:118-126. [PMID: 29277683 DOI: 10.1016/j.jconrel.2017.12.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 01/07/2023]
Abstract
Ciprofloxacin (CIP) apparent permeability across a pulmonary epithelium model can be controlled by the affinity of its complex with a metal cation. The higher the complex affinity, the larger is the reduction in CIP apparent permeability. The aim of this study was to evaluate if the control of the CIP apparent permeability observed in vitro could be transposed in vivo to control the CIP lung-to-blood absorption rate and CIP concentrations in the lung epithelial lining fluid (ELF) after intratracheal (IT) administration. Two types of innovative inhalable microparticles loaded with the low-affinity CIP-calcium complex (CIP-Ca) or with the high-affinity CIP-copper complex (CIP-Cu) were formulated and characterized. Then, ELF and plasma pharmacokinetics of CIP were studied in rats after IT administration of these two types of microparticles and of a CIP solution (2.5mg/kg). The presence of Cu2+ had little effect on the microparticle properties and the dry powder had aerodynamic properties which allowed it to reach the lungs. CIP concentrations in ELF were much higher after CIP-Cu microparticles IT administration compared to the other two formulations, with mean AUCELF to AUCu,plasma ratios equal to 1069, 203 and 9.8 after CIP-Cu microparticles, CIP-Ca microparticles and CIP solution pulmonary administration, respectively. No significant modification of lung toxicity markers was found (lactate dehydrogenase and total protein). CIP complexation with Cu2+ seems to be an interesting approach to obtain high CIP concentrations in the ELF of lungs after dry powder IT administration.
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Affiliation(s)
- Barbara Lamy
- INSERM, U1070, UFR de Médecine Pharmacie, Université de Poitiers, 1 rue Georges Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Frederic Tewes
- INSERM, U1070, UFR de Médecine Pharmacie, Université de Poitiers, 1 rue Georges Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France.
| | - Dolores Remedios Serrano
- Synthesis and Solid State Pharmaceutical Centre, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Panoz Institute, Dublin 2, Ireland
| | - Isabelle Lamarche
- INSERM, U1070, UFR de Médecine Pharmacie, Université de Poitiers, 1 rue Georges Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Patrice Gobin
- Laboratoire de Toxicologie-Pharmacocinétique, CHU of Poitiers, 2 rue de la Milétrie, 86000 Poitiers, France
| | - William Couet
- INSERM, U1070, UFR de Médecine Pharmacie, Université de Poitiers, 1 rue Georges Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France; Laboratoire de Toxicologie-Pharmacocinétique, CHU of Poitiers, 2 rue de la Milétrie, 86000 Poitiers, France
| | - Anne Marie Healy
- Synthesis and Solid State Pharmaceutical Centre, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Panoz Institute, Dublin 2, Ireland
| | - Sandrine Marchand
- INSERM, U1070, UFR de Médecine Pharmacie, Université de Poitiers, 1 rue Georges Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France; Laboratoire de Toxicologie-Pharmacocinétique, CHU of Poitiers, 2 rue de la Milétrie, 86000 Poitiers, France.
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