PMID- 28630183 OWN - NLM STAT- MEDLINE DCOM- 20180502 LR - 20181202 IS - 1098-6596 (Electronic) IS - 0066-4804 (Print) IS - 0066-4804 (Linking) VI - 61 IP - 9 DP - 2017 Sep TI - Bioavailability of Lumefantrine Is Significantly Enhanced with a Novel Formulation Approach, an Outcome from a Randomized, Open-Label Pharmacokinetic Study in Healthy Volunteers. LID - 10.1128/AAC.00868-17 [doi] LID - e00868-17 AB - The artemether-lumefantrine combination requires food intake for the optimal absorption of lumefantrine. In an attempt to enhance the bioavailability of lumefantrine, new solid dispersion formulations (SDF) were developed, and the pharmacokinetics of two SDF variants were assessed in a randomized, open-label, sequential two-part study in healthy volunteers. In part 1, the relative bioavailability of the two SDF variants was compared with that of the conventional formulation after administration of a single dose of 480 mg under fasted conditions in three parallel cohorts. In part 2, the pharmacokinetics of lumefantrine from both SDF variants were evaluated after a single dose of 480 mg under fed conditions and a single dose of 960 mg under fasted conditions. The bioavailability of lumefantrine from SDF variant 1 and variant 2 increased up to approximately 48-fold and approximately 24-fold, respectively, relative to that of the conventional formulation. Both variants demonstrated a positive food effect and a less than proportional increase in exposure between the 480-mg and 960-mg doses. Most adverse events (AEs) were mild to moderate in severity and not suspected to be related to the study drug. All five drug-related AEs occurred in subjects taking SDF variant 2. No clinically significant treatment-emergent changes in vital signs, electrocardiograms, or laboratory blood assessments were noted. The solid dispersion formulation enhances the lumefantrine bioavailability to a significant extent, and SDF variant 1 is superior to SDF variant 2. CI - Copyright (c) 2017 Jain et al. FAU - Jain, Jay Prakash AU - Jain JP AD - Novartis Healthcare Pvt. Ltd., Hyderabad, India jay_prakash.jain@novartis.com joel.leong@novartis.com. FAU - Leong, F Joel AU - Leong FJ AD - Novartis Institute for Tropical Diseases, Singapore jay_prakash.jain@novartis.com joel.leong@novartis.com. FAU - Chen, Lan AU - Chen L AD - Novartis Institutes for BioMedical Research, Shanghai, People's Republic of China. FAU - Kalluri, Sampath AU - Kalluri S AD - Novartis Healthcare Pvt. Ltd., Hyderabad, India. FAU - Koradia, Vishal AU - Koradia V AD - Novartis Pharma AG, Basel, Switzerland. FAU - Stein, Daniel S AU - Stein DS AD - Novartis Pharma, East Hanover, New Jersey, USA. FAU - Wolf, Marie-Christine AU - Wolf MC AD - Novartis Pharma AG, Basel, Switzerland. FAU - Sunkara, Gangadhar AU - Sunkara G AD - Novartis Pharma, East Hanover, New Jersey, USA. FAU - Kota, Jagannath AU - Kota J AD - Novartis Healthcare Pvt. Ltd., Hyderabad, India. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20170824 PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Antimalarials) RN - 0 (Artemether, Lumefantrine Drug Combination) RN - 0 (Artemisinins) RN - 0 (Drug Combinations) RN - 0 (Ethanolamines) RN - 0 (Fluorenes) RN - F38R0JR742 (Lumefantrine) SB - IM MH - Adolescent MH - Adult MH - Antimalarials/*pharmacokinetics MH - Area Under Curve MH - Artemether, Lumefantrine Drug Combination MH - Artemisinins/pharmacokinetics MH - Biological Availability MH - Drug Combinations MH - Ethanolamines/*pharmacokinetics MH - Female MH - Fluorenes/*pharmacokinetics MH - Healthy Volunteers MH - Humans MH - Lumefantrine MH - Male MH - Middle Aged MH - Young Adult PMC - PMC5571342 OTO - NOTNLM OT - antimalarial agents OT - bioavailability OT - lumefantrine OT - malaria OT - solid dispersion EDAT- 2017/06/21 06:00 MHDA- 2018/05/03 06:00 PMCR- 2017/08/24 CRDT- 2017/06/21 06:00 PHST- 2017/04/26 00:00 [received] PHST- 2017/06/09 00:00 [accepted] PHST- 2017/06/21 06:00 [pubmed] PHST- 2018/05/03 06:00 [medline] PHST- 2017/06/21 06:00 [entrez] PHST- 2017/08/24 00:00 [pmc-release] AID - AAC.00868-17 [pii] AID - 00868-17 [pii] AID - 10.1128/AAC.00868-17 [doi] PST - epublish SO - Antimicrob Agents Chemother. 2017 Aug 24;61(9):e00868-17. doi: 10.1128/AAC.00868-17. Print 2017 Sep.