The use of a 3-substituted indole compound of formula (I) or a pharmaceutically acceptable salt, amide or ester thereof; X is CH2 or SO2 and R1, R2, R3, R4, R5, R6 and R7 are certain specified organic moieties, for use in the preparation of a medicament for the inhibition of monocyte chemoattractant protein-1 and/or RANTES induced chemotaxis. Pharmaceutical compositions containing certain compounds of formula (I) and novel compounds of formula (I) are also described and claimed.