Aug 9 (Reuters) - Britain’s takeover regulator said on Monday it would launch an auction process for Vectura if its suitors Carlyle Group and Philip Morris don’t make final bids for the London-listed drugmaker by Tuesday. Vectura separately said it was withdrawing its intention to recommend Carlyle’s increased offer of 155 pence per share and that it had no intention at this stage to recommend Philip Morris’ 165 pence proposal from Sunday. (Reporting by Pushkala Aripaka in Bengaluru; Editing by Subhranshu Sahu) Our Standards: The Thomson Reuters Trust Principles.