PMID- 21361783 OWN - NLM STAT- MEDLINE DCOM- 20111128 LR - 20131121 IS - 1941-2703 (Electronic) IS - 1941-2711 (Linking) VI - 24 IP - 4 DP - 2011 Aug TI - Pharmacokinetics and tolerability of amikacin administered as BAY41-6551 aerosol in mechanically ventilated patients with gram-negative pneumonia and acute renal failure. PG - 183-90 LID - 10.1089/jamp.2010.0860 [doi] AB - BACKGROUND: BAY41-6551, a drug-device combination in development for adjunctive treatment of Gram-negative pneumonia in intubated and mechanically ventilated patients, consists of amikacin formulated for inhalation coupled with the Pulmonary Drug Delivery System (PDDS) Clinical aerosol delivery platform. Given the predominantly renal clearance of aminoglycosides, understanding systemic amikacin exposure and safety during administration of BAY41-6551 to patients with acute renal failure (ARF) is clinically important. METHODS: Seven mechanically ventilated patients with Gram-negative pneumonia and ARF receiving continuous veno-venous hemodiafiltration (CVVHDF) were treated with multiple administrations of BAY41-6551 400 mg amikacin twice daily using the PDDS Clinical on-ventilator device [in addition to standard intravenous (i.v.) antimicrobial therapy]. CVVHDF parameters were recorded and a PK analysis was performed using serum, urine, and bronchoalveolar lavage fluid samples. RESULTS: Maximum serum amikacin concentration [median 1.93 (range: 0.63-3.99) mg/L] and area under the concentration-time curve from zero to 12 h on day 3 [median 19.32 (range 6.32-36.87) mg . h/L] were elevated compared with mechanically ventilated patients with normal renal function; however, serum amikacin trough concentrations were within accepted safety limits. The median amikacin concentration in epithelial lining fluid [887 (range: 406-12,819) mg/L] was similar to that reported previously in mechanically ventilated patients with normal renal function. BAY41-6551 demonstrated acceptable safety and tolerability with most adverse events (AEs) as expected for the patient population. One serious AE of bronchospasm was attributed to the study medication; no reported AEs were related to the PDDS Clinical device. CONCLUSIONS: CVVHDF appears to provide adequate clearance of systemically absorbed amikacin in mechanically ventilated patients with ARF, suggesting that dose adjustments for BAY41-6551 are probably not necessary for this patient population. Nonetheless, the standard precautionary measures for critically ill patients receiving i.v. amikacin should be followed for patients with ARF who are treated with BAY41-6551. FAU - Luyt, Charles-Edouard AU - Luyt CE AD - Service de Reanimation Medicale, Hopital Pitie-Salpetriere, Paris, France. charles-edouard.luyt@psl.ap-hop-paris.fr FAU - Eldon, Michael A AU - Eldon MA FAU - Stass, Heino AU - Stass H FAU - Gribben, Dennis AU - Gribben D FAU - Corkery, Kevin AU - Corkery K FAU - Chastre, Jean AU - Chastre J LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110301 PL - United States TA - J Aerosol Med Pulm Drug Deliv JT - Journal of aerosol medicine and pulmonary drug delivery JID - 101475057 RN - 0 (Aerosols) RN - 0 (Anti-Bacterial Agents) RN - 84319SGC3C (Amikacin) MH - Acute Kidney Injury/complications MH - Aerosols MH - Aged MH - Amikacin/*administration & dosage/adverse effects/pharmacokinetics MH - Anti-Bacterial Agents/*administration & dosage/adverse effects/pharmacokinetics MH - Area Under Curve MH - Critical Illness MH - Drug Delivery Systems MH - Female MH - Follow-Up Studies MH - Gram-Negative Bacterial Infections/*drug therapy MH - Hemodiafiltration/methods MH - Humans MH - Male MH - Middle Aged MH - Pneumonia, Bacterial/*drug therapy/microbiology MH - Respiration, Artificial MH - Tissue Distribution EDAT- 2011/03/03 06:00 MHDA- 2011/12/13 00:00 CRDT- 2011/03/03 06:00 PHST- 2011/03/03 06:00 [entrez] PHST- 2011/03/03 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] AID - 10.1089/jamp.2010.0860 [doi] PST - ppublish SO - J Aerosol Med Pulm Drug Deliv. 2011 Aug;24(4):183-90. doi: 10.1089/jamp.2010.0860. Epub 2011 Mar 1.