The invention relates to 6-cycloamino-3-(1H-pyrrolo[2,3-b]pyridin-4-yl)imidazo[1,2-b]pyridazine derivatives corresponding to the general formula (I) in which R2 represents an aryl group optionally substituted with one or more halogen atoms or C1-6-alkyl, C1-6-alkyloxy, C1-6-alkylthio, C1-6-fluoroalkyl, C1-6-fluoroalkyloxy and —CN groups or R2 represents a group chosen from C1-6-alkyl, C1-6-fluoroalkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-C1-6-alkyl groups; A represents a C1-7-alkylene group; B represents a C1-7-alkylene group; L represents either a nitrogen atom optionally substituted with an Rc or Rd group, or a carbon atom substituted with an Re1 group and an Rd group or two Re2 groups; the carbon atoms of A and of B being optionally substituted with one or more Rf groups, which may be identical to or different from one another. Preparation process and therapeutic use.