Genentech Reports Positive Phase Ib Results for Its Dual GLP-1/GIP Receptor Agonist CT-388 in People With Obesity

– Over 24 weeks, a once-weekly subcutaneous injection of CT-388 achieved a clinically meaningful and statistically significant mean placebo-adjusted weight loss of 18.8% (p < 0.001) –

– At week 24, 100% of CT-388 treated participants achieved >5% weight loss, 70% achieved >15% and 45% achieved >20% weight loss –

– In a subgroup with pre-diabetes at baseline, CT-388 treatment normalized glycemia in all patients, indicating its strong impact on glucose homeostasis –

– No new or unexpected safety signals were detected. Overall, CT-388 demonstrated a safety and tolerability profile consistent with its drug class –

Excerpt from the Press Release:

SOUTH SAN FRANCISCO, Calif.–(BUSINESS WIRE)–Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), today announced positive results from the Phase Ib clinical trial of CT-388, a dual GLP-1/GIP receptor agonist being developed for the treatment of obesity and type 2 diabetes. The study found that a once-weekly subcutaneous injection of CT-388 over 24 weeks resulted in significant weight loss in healthy adults with obesity compared to placebo. The weight loss achieved with CT-388 was clinically meaningful, with a mean placebo-adjusted weight loss of 18.8% (p-value < 0.001). At week 24, 100% of CT-388 treated participants achieved a weight loss of >5%, 85% achieved >10%, 70% achieved >15%, and 45% achieved >20%. The treatment was well tolerated, with mild to moderate gastrointestinal-related adverse events being the most common, consistent with the incretin class of medicines that CT-388 belongs to. All participants with a pre-diabetes status at baseline became normoglycemic after 24 weeks of CT-388 treatment, whereas glycemic status of participants treated with placebo remained largely unchanged during this period.

“We are very pleased to see the significant and clinically meaningful weight loss in people treated with CT-388,” said Levi Garraway, M.D., Ph.D., chief medical officer and head of Global Product Development. “The results are highly encouraging for further development of CT-388 for both obesity and type 2 diabetes and underscore its potential to become a best-in-class therapy with durable weight loss and glucose control.”

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