Nearly three months after winning a contentious bid to buy obesity drugmaker Metsera Inc. for $10 billion, Pfizer Inc. reported its first statistically significant top-line data of the acquired lead, ultra-long-acting glucagon-like peptide-1 (GLP-1) receptor agonist, showing a mean placebo-adjusted weight loss of up to 12.3% at 28 weeks, as well as competitive tolerability.