(19)

(11)

EP 4 117 668 A1

(12)

(43) Date of publication: 18.01.2023 Bulletin 2023/03 (21) Application number: 21935450.3 (22) Date of filing: 16.04.2021

(51) International Patent Classification (IPC):  A61K 31/522(2006.01) A61K 45/06(2006.01) (52) Cooperative Patent Classification (CPC): A61K 31/522; A61K 45/06; A61K 31/352; A61K 31/365 (86) International application number: PCT/US2021/027702 (87) International publication number: WO 2022/220841 (20.10.2022 Gazette 2022/42)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicants: Provectus Pharmatech, Inc. Knoxville, Tennessee 37932 (US) UTI Limited Partnership Calgary, AB T2L 1Y8 (CA)	(72) Inventors: NARENDRAN, Aru Calgary, AB T2L 1Y8 (CA) RODRIGUES, Dominic Knoxville, TN 37932 (US) HOROWITZ, Bruce Knoxville, TN 37932 (US) PERSHING, Edward, V. Knoxville, TN 37932 (US) WACHTER, Eric, A. Knoxville, TN 37932 (US) (74) Representative: Stephens, Clare Jean et al Page White & Farrer Limited Bedford House 21A John Street London WC1N 2BF London WC1N 2BF (GB)