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OBJECTIVE: These post hoc analyses of the Semaglutide Treatment Effect in People with obesity (STEP) 1-3 trials (NCT03548935, NCT03552757, and NCT03611582) explored the effects of semaglutide (up to 2.4 mg) on kidney function.
RESEARCH DESIGN AND METHODS: STEP 1-3 included adults with overweight/obesity; STEP 2 patients also had type 2 diabetes. Participants received once-weekly subcutaneous semaglutide 1.0 mg (STEP 2 only), 2.4 mg, or placebo for 68 weeks, plus lifestyle intervention (STEP 1 and 2) or intensive behavioral therapy (STEP 3). Changes in urine albumin-to-creatinine ratio (UACR) and UACR status from baseline to week 68 were assessed for STEP 2. Changes in estimated glomerular filtration rate (eGFR) were assessed from pooled STEP 1-3 data.
RESULTS: In STEP 2, 1,205 (99.6% total cohort) patients had UACR data; geometric mean baseline UACR was 13.7, 12.5, and 13.2 mg/g with semaglutide 1.0 mg, 2.4 mg, and placebo, respectively. At week 68, UACR changes were -14.8% and -20.6% with semaglutide 1.0 mg and 2.4 mg, respectively, and +18.3% with placebo (between-group differences [95% CI] vs. placebo: -28.0% [-37.3, -17.3], P < 0.0001 for semaglutide 1.0 mg; -32.9% [-41.6, -23.0], P = 0.003 for semaglutide 2.4 mg). UACR status improved in greater proportions of patients with semaglutide 1.0 mg and 2.4 mg versus placebo (P = 0.0004 and P = 0.0014, respectively). In the pooled STEP 1-3 analyses, 3,379 participants had eGFR data; there was no difference between semaglutide 2.4 mg and placebo in eGFR trajectories at week 68.
CONCLUSIONS: Semaglutide improved UACR in adults with overweight/obesity and type 2 diabetes. In participants with normal kidney function, semaglutide did not have an effect on eGFR decline.
|Special Interest - Obesity -- Physician|
|Family Medicine (FM)/General Practice (GP)|
|General Internal Medicine-Primary Care(US)|
It would have been interesting to see tabulated data on eGFR before and after treatment.