Pfizer Inc is to pay $4.9 billion to acquire a three-year old company, Metsera Inc, which is developing drugs for weight management giving it a selection of candidate products that can be delivered orally and by injection and which include both amylin and incretin mimetics. The amylin-based treatments restore sensitivity to leptin, a satiety hormone that enables people to feel naturally full after eating. The incretins, which include the glucagon-like peptide-1 (GLP-1) drugs, mimic hormones in the gut that help regulate blood sugar and appetite.
