Pfizer moves forward with its hopes for a monthly obesity drug


Andrew Joseph covers health, medicine, and the biopharma industry in Europe. You can reach Andrew on Signal at drewqjoseph.71.

Pfizer took its next steps Tuesday in its attempted resurrection in the obesity market.

The pharma firm said that an experimental weight loss drug, recently picked up through the company’s contested acquisition of the biotech Metsera, hit its marks in a mid-stage study, demonstrating the potential to be a once-a-month treatment.

Investors, however, will be parsing the data to assess how they compare to outcomes demonstrated by other drugs in the increasingly competitive obesity market. Pfizer’s share price was down some 4% in pre-market trading as the company also reported 2025 earnings.

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