The present invention relates to novel bicyclic heterocycle derivatives, pharmaceutical compositions comprising the bicyclic heterocycle derivatives and the use of these compounds for treating or preventing allergy, an allergy-induced airway response, congestion, a cardiovascular disease, an inflammatory disease, a gastrointestinal disorder, a neurological disorder, a metabolic disorder, obesity or an obesity-related disorder, diabetes, a diabetic complication, impaired glucose tolerance or impaired fasting glucose. R1 is: I, Ia, Ib ou Ic. R2 is alkyl, alkenyl, aryl, cycloalkyl. heterocycloalkyl or heteroaryl, any of which can be optionally substituted with R3; Y is —C(O)—, —S—, —S(O)—, —S(O)2—, —CH2— or —O—, such that if Y is —O— or —S—, then M is other than N and R1 is (Ib);