The invention relates to 2-alkyl-6-cycloamino-3-(pyridin-4-yl)imidazo[1,2-b]pyridazine derivatives of the general formula (I) where: R2 is a C1-6-alkyl, C3-7-cycloalkyl, C3-7-cycloalkyl-C1-4-alkyl, C1-4-alkyloxy-C-M-alkyl, C3-7-cycloalkyloxy-C1-4-alkyl>；C3-7-cycloalkyl-C1-4-alkyloxy-C1-4-alkyl, hydroxy-C1-6-alkyl, C1-4-fluoroalkyl group； R3 is a hydrogen atom or a substituent selected from halogen atoms and the C1-3 alkyl, &mdash；NR4R5, hydroxyl or C1-4 alkyloxy groups； A is a C1-7-alkylene group optionally substituted by one or two Ra groups； B is a C1-7-alkylene group optionally substituted by one or two Rb groups； L is either a nitrogen atom optionally substituted by an Rc or Rd group or a carbon atom substituted by an Re1 group and an Rd group or by two Re2 groups； Rd is a group selected from a hydrogen atom or a C1-6-alkyl, C3-7-cycloalkyl, C3-7-cycloalkyl-C1-6-alkyl, C1-6-alkylthio-C1-6-alkyl, C1-6-alkyloxy-C1-6-alkyl, C1-6-fluoroalkyl, hydroxy-C1-6-alkyl group； Rf is a C1-6-alkyl, C3-7-cycloalkyl, C3-7-cycloalkyl-C1-6-alkyl, C1-6-alkyloxy-C1-6-alkyl, C3-7-cycloalkyloxy-C1-4-alkyl, C3-7-cycloalkyl-C1-4-alkyloxy-C1-4-alkyl, hydroxy-C1-6-allyl, C1-6-fluoroalkyl or benzyl group. The invention also relates to a method for preparing same and to the therapeutic application thereof.
