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EP 3 720 470 A1

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(43) Date of publication: 14.10.2020 Bulletin 2020/42 (21) Application number: 18887098.4 (22) Date of filing: 28.11.2018

(51) International Patent Classification (IPC):  A61K 38/20(2006.01) A61P 29/00(2006.01) A61P 37/04(2006.01) A61K 47/68(2017.01) A61P 37/02(2006.01) A61P 37/06(2006.01) (86) International application number: PCT/US2018/062808 (87) International publication number: WO 2019/112854 (13.06.2019 Gazette 2019/24)

(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 (30) Priority: 06.12.2017 US 201762595357 P 24.05.2018 US 201862675972 P 23.08.2018 US 201816109875 23.08.2018 US 201816109897 23.08.2018 US 201862721644 P (71) Applicant: Pandion Therapeutics, Inc. Cambridge, Massachusetts 02139 (US)

(72) Inventors: HIGGINSON-SCOTT, Nathan Cambridge, Massachusetts 02139 (US) VINEY, Joanne L. Cambridge, Massachusetts 02139 (US) VISWESWARAIAH, Jyothsna Cambridge, Massachusetts 02139 (US) SAMPSON, Erik Robert Cambridge, Massachusetts 02139 (US) OTIPOBY, Kevin Lewis Cambridge, Massachusetts 02139 (US) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)