A compound of Formula: or a tautomer or a stereoisomeric form thereof, wherein R 1 is selected from the group of hydrogen; C 1-4 alkyl; and C 1-4 alkyl substituted with one or more fluoro substituents; R 2 is selected from the group of hydrogen; C 1-4 alkyl; C 1-4 alkyl substituted with one or more fluoro substituents; C 3-6 cycloalkyl; and Het 1; or R 1 and R 2 together with the carbon atom to which they are attached form a C 3-6 cycloalkyl; Het 1 is a heteroaryl selected from the group of thienyl, thiazolyl, pyrrolyl, oxazolyl, oxadiazolyl, pyrazolyl, imidazolyl, isoxazolyl, isothiazolyl, pyridinyl and pyrimidinyl, each of which may be optionally substituted with one or two substituents independently selected from halogen, cyano, C 1-4 alkyl, C 1-4 alkyloxy, C 1-4 alkyl substituted with one or more fluoro substituents, and C 1-4 alkyloxy substituted with one or more fluoro substituents; X is N or CR 9; R 9 is selected from hydrogen and halogen; R 3 is selected from the group of hydrogen; halogen; cyano; C 3-6 cycloalkyl; C 1-6 alkyl; Het 4; C 1-6 alkyl substituted with one or more fluoro substituents; -OC 1-6 alkyl; -OC 1-6 alkyl substituted with one or more fluoro substituents; and C 1-6 alkyl substituted with one substituent selected from -NR 3a R 3b and -OC 1-4 alkyl; Het 4 is a heteroaryl selected from the group of piperidinyl, tetrahydropyranyl, pyrrolidinyl, tetrahydrofuranyl, azetidinyl, piperazinyl, morpholinyl and oxetanyl, each of which may be optionally substituted with one or two substituents independently selected from fluoro, C 1-4 alkyl, -OC 1-4 alkyl, C 3-6 cycloalkyl and C 1-4 alkyl substituted with one or more fluoro substituents; R 3a and R 3b are each independently selected from hydrogen and C 1-4 alkyl; R 4 is hydrogen; R 5 is selected from the group of hydrogen; cyano; C 1-4 alkyl; C 1-4 alkyl substituted with one or more fluoro substituents; C 1-4 alkyl substituted with one substituent selected from the group of - NR 5a R 5b, -OC 1-4 alkyl, and Het 5; R 5a and R 5b are each independently selected from the group of hydrogen and C 1-4 alkyl; Het 5 is a heterocyclyl selected from the group of piperidinyl, piperazinyl, morpholinyl, tetrahydropyranyl, pyrrolidinyl, tetrahydrofuranyl, azetidinyl and oxetanyl, each of which may be optionally substituted with one or two substituents independently selected from fluoro, C 1-4 alkyl, -OC 1-4 alkyl, C 3-6 cycloalkyl and C 1-4 alkyl substituted with one or more fluoro substituents; R 6 is selected from the group of hydrogen; Het 2; R 8; C 1-6 alkyl optionally substituted with one Het 3; and C 2-6 alkyl substituted with one or more substituents independently selected from the group of fluoro, -NR 6a R 6b, and -OR 6c; R 6a, R 6b and R 6c are each independently selected from hydrogen and C 1-6 alkyl; Het 2 is a heterocyclyl, bound through any available carbon atom, selected from the group of piperidinyl, tetrahydropyranyl, pyrrolidinyl, tetrahydrofuranyl, azetidinyl and oxetanyl, each of which may be optionally substituted with one or two substituents independently selected from fluoro, C 1-4 alkyl, -OC 1-4 alkyl, C 3-6 cycloalkyl, C 1-4 alkyl substituted with one -OC 1-4 alkyl, C 1-4 alkyl substituted with one C 3-6 cycloalkyl, and C 1-4 alkyl substituted with one or more fluoro substituents; Het 3 is a heterocyclyl selected from the group of morpholinyl, piperidinyl, piperazinyl, tetrahydropyranyl, pyrrolidinyl, tetrahydrofuranyl, azetidinyl and oxetanyl, each of which may be optionally substituted with one or two substituents independently selected from fluoro, C 1-4 alkyl, -OC 1-4 alkyl, C 3-6 cycloalkyl, C 1-4 alkyl substituted with one -OC 1-4 alkyl, C 1-4 alkyl substituted with one C 3-6 cycloalkyl, and C 1-4 alkyl substituted with one or more fluoro substituents; R 8 is C 3-6 cycloalkyl optionally substituted with one or two substituents independently selected from fluoro, C 1-4 alkyl, -OC 1-4 alkyl, C 1-4 alkyl substituted with one -OC 1-4 alkyl, and C 1-4 alkyl substituted with one or more fluoro substituents; R 7 is selected from the group of hydrogen, C 1-6 alkyl, C 3-6 cycloalkyl and C 1-4 alkyl substituted with one -OC 1-4 alkyl; or a pharmaceutically acceptable addition salt, or a solvate thereof.