Abstract : Single-inhaler triple therapy in extrafine solution combining an inhaled corticostéroid (ICS), the dipropionate of beclométasone, a long acting ß2-agonist (LABA), the fumarate of formoterol and an long-acting muscarinic antagonist (LAMA), the bromide of glycopyrronium, was developed for the treatment of the chronic obstructive pulmonary disease (COPD). Trimbow® is the first triple therapy in spray with fixed dose and containing 3 pharmacological agents (LABA-LAMA-ICS). Clinical trials show that Trimbow® improves numerous parameters such as the respiratory function, the quality of life, the symptoms and the rate of moderate to severe exacerbations while being tolerated well. These results justify its use in severe and very severe COPD with exacerbations in spite of treatment by LABA-LAMA or LABA-ICS. In this article, we present a brief synthesis of the main recent clinical trials on Trimbow®, its comparison with other pharmacological agents/associations regularly used in the treatment of COPD, as well as some practical information on its use in routine.