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. 2024 Feb 16;331(9):740–749. doi: 10.1001/jama.2024.0728

Table 2. Change From Baseline to Month 3 or 6 in 24-Hour Mean Ambulatory and Office Systolic Blood Pressure (SBP) Among the Full Analysis Seta.

Outcome Zilebesiran Placebo (n = 75)
150 mg every 6 mo (n = 78) 300 mg every 6 mo (n = 73) 300 mg every 3 mo (n = 75) 300 mg every 3 mo or every 6 mo (n = 148) 600 mg every 6 mo (n = 76)
Ambulatory SBP at baseline, patients with data, mean (SD), mm Hg 140.6 (8.5) 142.5 (8.8) 141.6 (7.7) 142.0 (8.3) 143.1 (9.0) 141.1 (7.9)
Office SBP at baseline, mean (SD), mm Hg 142.0 (10.9) 143.0 (11.3) 140.0 (11.0) [n = 74] 141.5 (11.2) [n = 147] 140.8 (10.6) 143.1 (13.3)
Primary end point
Ambulatory SBP at month 3, mean (SD), mm Hg 133.2 (14.7) [n = 68] 131.8 (12.8) [n = 137] 133.1 (14.9) [n = 65] 147.3 (15.2) [n = 60]
LSM change from baseline (95% CI), mm Hg −7.3 (−10.3 to −4.4) −10.0 (−12.0 to −7.9) −8.9 (−11.9 to −6.0) 6.8 (3.6 to 9.9)
LSM difference vs placebo (95% CI), mm Hgb −14.1 (−19.2 to −9.0) −16.7 (−21.2 to −12.3) −15.7 (−20.8 to −10.6)
P valueb <.001 <.001 <.001
Secondary end point
Office SBP at month 3, mean (SD), mm Hg 131.8 (13.6) [n = 68] 129.1 (13.8) [n = 134] 131.3 (15.9) [n = 64] 141.4 (12.6) [n = 60]
LSM change from baseline (95% CI), mm Hg −9.7 (−12.6 to −6.8) −12.1 (−14.2 to −10.0) [n = 133] −9.2 (−12.1 to −6.2) −0.1 (−3.2 to 3.0)
LSM difference vs placebo (95% CI), mm Hgb −9.6 (−13.8 to −5.3) −12.0 (−15.7 to −8.3) [n = 133] −9.1 (−13.4 to −4.8)
P value <.001 <.001 <.001
Ambulatory SBP at month 6, mean (SD), mm Hg 134.4 (15.0) [n = 62] 132.2 (13.8) [n = 68] 131.6 (12.2) [n = 60] 131.7 (16.8) [n = 63] 144.6 (15.0) [n = 54]
LSM change from baseline (95% CI), mm Hg −6.5 (−9.7 to −3.3) −9.9 (−13.0 to −6.8) −9.5 (−12.8 to −6.3) −9.6 (−12.8 to −6.4) 4.6 (1.2 to 8.0)
LSM difference vs placebo (95% CI), mm Hgb −11.1 (−15.8 to −6.4) −14.5 (−19.1 to −9.9) −14.1 (−18.9 to −9.4) −14.2 (−18.9 to −9.5)
P value <.001 <.001 <.001 <.001
Office SBP at month 6, mean (SD), mm Hg 133.7 (13.6) [n = 65] 131.2 (16.1) [n = 68] 127.4 (14.5) [n = 58] 128.9 (15.6) [n = 62] 140.6 (12.4) [n = 57]
LSM change from baseline (95% CI), mm Hg −8.2 (−11.5 to −4.8) −11.1 (−14.4 to −7.8) −12.8 (−16.3 to −9.2)[n = 57] −10.8 (−14.2 to −7.4) −0.6 (−4.2 to 2.9)
LSM difference vs placebo (95% CI), mm Hgb −7.5 (−12.4 to −2.7) −10.5 (−15.3 to −5.7) −12.1 (−17.2 to −7.1) [n = 57] −10.2 (−15.1 to −5.3)
P value .003 <.001 <.001 <.001

Abbreviations: LSM, least-squares mean; SBP, systolic blood pressure.

a

All randomized patients who received any amount of study drug, analyzed according to randomized treatment.

b

Mixed model for repeated measures adjusted for race and corresponding baseline SBP. P values and 95% CIs for the primary end point are adjusted based on the Dunnett test.