A compound according to Formula I or a pharmaceutically acceptable salt thereof wherein: - A 1 -A 8 are N or CR 1 -CR 8 , respectively, with the proviso that no more than two of the four positions A in A 1 -A 4 can be simultaneously N and that no more than two of the four positions A in A 5 -A 8 can be simultaneously N; - R 1 -R 8 are independently H, halogen, amino, C(1-3)alkoxy, (di)C(1-3)alkylamino or C(1-6)alkyl; - R 9 is C(1-6)alkyl; - R 10 and R 11 are independently H, F, methyl, ethyl, hydroxy or methoxy or R 10 and R 11 together is carbonyl, all alkyl groups, if present, optionally being substituted with one or more F; - R 12 is H or C(1-6)alkyl; - R 13 is C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl, C(2-5)heterocycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)hetero-aryl or C(1-9)heteroarylC(1-3)alkyl, all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1-3)alkyl; - R 14 is H, C(1-6)alkyl, C(2-6)alkenyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl, C(2-5)heterocycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl or C(1-9)heteroarylC(1-3)alkyl, all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1-3)alkyl; - or R 13 and R 14 are fused and form a ring having 5 to 7 atoms by joining R 13 being C(1-6)alkyl or C(2-6)alkenyl with an independent substituent within the definition of R 14 , all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1 -3)alkyl. - A 1 -A 8 are N or CR 1 -CR 8 , respectively, with the proviso that no more than two of the four positions A in A 1 -A 4 can be simultaneously N and that no more than two of the four positions A in A 5 -A 8 can be simultaneously N; - R 1 -R 8 are independently H, halogen, amino, C(1-3)alkoxy, (di)C(1-3)alkylamino or C(1-6)alkyl; - R 9 is C(1-6)alkyl; - R 10 and R 11 are independently H, F, methyl, ethyl, hydroxy or methoxy or R 10 and R 11 together is carbonyl, all alkyl groups, if present, optionally being substituted with one or more F; - R 12 is H or C(1-6)alkyl; - R 13 is C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl, C(2-5)heterocycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)hetero-aryl or C(1-9)heteroarylC(1-3)alkyl, all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1-3)alkyl; - R 14 is H, C(1-6)alkyl, C(2-6)alkenyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl, C(2-5)heterocycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl or C(1-9)heteroarylC(1-3)alkyl, all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1-3)alkyl; - or R 13 and R 14 are fused and form a ring having 5 to 7 atoms by joining R 13 being C(1-6)alkyl or C(2-6)alkenyl with an independent substituent within the definition of R 14 , all groups optionally substituted with one or more halogen, amino, hydroxy, cyano, C(1-3)alkoxy, C(1-3)alkoxycarbonyl, (di)C(1-3)alkylamino or C(1 -3)alkyl. <EOS>