However, other giants in the industry have been attempting to enter the field, and Pfizer (PFE 0.64%) is among them. Pfizer lands another acquisitionIn the past few years, Pfizer has made a series of acquisitions to bolster its pipeline. The pharmaceutical leader is now taking similar steps to enhance its GLP-1 pipeline. Pfizer recently announced that it would acquire Metsera (MTSR -0.49%), a company focused on developing weight management medicines. Looking at the big pictureCan Pfizer eventually challenge the dominance of Eli Lilly and Novo Nordisk in the GLP-1 space?