MariTide is being studied for the treatment of obesity and Type 2 diabetes and demonstrated weight loss at 52 weeks.

Amgen (AMGN) announced positive data at 52 weeks in a double-blind, dose-ranging Phase 2 study with MariTide – maridebart cafraglutide, formerly AMG 133 -, an investigational antibody peptide conjugate subcutaneously administered monthly or less frequently.

The pharmaceutical company's MariTide treatment performed well in a Phase 2 study but not as well as Wall Street expected.

Shares of Amgen (NASDAQ: AMGN) are down by 6% in the last 30 days as I write this -- a larger-than-normal amount for a large pharma company's stock to fall, especially considering that the market rose nearly 3% in the same period.

Amgen's experimental weight loss injection, MariTide, showed up to 20% weight loss in patients without diabetes and 17% in those with diabetes after a year in a phase 2 trial. Despite higher discontinuation rates compared to other drugs,