Journal of the American College of Cardiology · 2026
Efficacy of Tonlamarsen in Patients With Uncontrolled Hypertension: The KARDINAL Phase 2 Randomized Clinical Trial.
СтатьяРандомизированное исследованиеКлиническое исследование II фазыМногоцентровое исследованиеНазвание и аннотация: Перевод в очереди
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Laffin Luke J, Wang Qiuqing, Sarraju Ashish, Touyz Rhian M, Schlaich Markus P, Cohen Debbie L, Mahfoud Felix, Mitchell Lisa M, Mitchell Jennifer, Wolski Kathy, Dennis Patrick, Akere Ayoade, Li Wanying, Chen Gene, Cohen Yehuda Z, Kim Jessica, Cooper Caroline G, Ramesan Prameela, Edelberg Jay M, Nissen Steven E, KARDINAL Investigators
Аннотация
BACKGROUND: Angiotensinogen production represents the rate-limiting step in activation of the renin-angiotensin-aldosterone system. Tonlamarsen is an investigational antisense oligonucleotide directed against hepatic angiotensinogen synthesis; its efficacy and safety among patients with hypertension are unknown.
OBJECTIVES: The aim of this study was to assess the safety and efficacy of 90 mg tonlamarsen administered subcutaneously once monthly for 5 months compared with a single dose of tonlamarsen and subsequent placebo.
METHODS: This randomized, placebo-controlled trial enrolled adults with office systolic blood pressure (BP) >135 mm Hg receiving 2 to 5 antihypertensive medications. Participants entered a 3-part treatment period with monthly administration of the study drug, consisting of a 4-week placebo lead-in, followed by 4-week active run-in with a single dose of tonlamarsen and subsequent randomization to 4 additional doses of tonlamarsen or matching placebo for 16 weeks. The coprimary endpoints were the between-group differences in the change from baseline to week 20 in plasma angiotensinogen and in office systolic BP.
RESULTS: A total of 279 participants received placebo lead-in, 206 received 90 mg tonlamarsen during the active run-in, and 198 were randomized. The mean BP among randomized participants before and after the placebo lead-in was 147/90 and 147/89 mm Hg, respectively. Following active run-in with tonlamarsen, the mean BP was 140/87 mm Hg. Twenty weeks following the first dose of tonlamarsen, least squares (LS) mean percentage changes in plasma angiotensinogen levels were -23.0% (95% CI: -27.8% to -18.2%) with a single dose of tonlamarsen and subsequent placebo and -67.2% (95% CI: -71.9% to -62.4%) with monthly tonlamarsen administration, with a LS mean difference of -44.1% (97.5% CI: -51.9% to -36.4%; P < 0.0001). The LS mean changes in office systolic BP were -6.7 mm Hg (95% CI: -9.8 to -3.5 mm Hg) for participants following a single dose of tonlamarsen and subsequent placebo and -6.7 mm Hg (95% CI: -9.8 to -3.6 mm Hg) for participants treated with monthly tonlamarsen, with a LS mean difference of -0.1 mm Hg (95% CI: -4.5 to -4.4 mm Hg; P = 0.97). Serious adverse events were infrequent and similar between treatment groups.
CONCLUSIONS: Among individuals with uncontrolled hypertension, monthly tonlamarsen administration was more effective at lowering plasma angiotensinogen compared with a single tonlamarsen dose, but there was no additional BP reduction. (A Study to Investigate Tonlamarsen for the Treatment of Adults With Uncontrolled Hypertension [KARDINAL]; NCT06864104).
OBJECTIVES: The aim of this study was to assess the safety and efficacy of 90 mg tonlamarsen administered subcutaneously once monthly for 5 months compared with a single dose of tonlamarsen and subsequent placebo.
METHODS: This randomized, placebo-controlled trial enrolled adults with office systolic blood pressure (BP) >135 mm Hg receiving 2 to 5 antihypertensive medications. Participants entered a 3-part treatment period with monthly administration of the study drug, consisting of a 4-week placebo lead-in, followed by 4-week active run-in with a single dose of tonlamarsen and subsequent randomization to 4 additional doses of tonlamarsen or matching placebo for 16 weeks. The coprimary endpoints were the between-group differences in the change from baseline to week 20 in plasma angiotensinogen and in office systolic BP.
RESULTS: A total of 279 participants received placebo lead-in, 206 received 90 mg tonlamarsen during the active run-in, and 198 were randomized. The mean BP among randomized participants before and after the placebo lead-in was 147/90 and 147/89 mm Hg, respectively. Following active run-in with tonlamarsen, the mean BP was 140/87 mm Hg. Twenty weeks following the first dose of tonlamarsen, least squares (LS) mean percentage changes in plasma angiotensinogen levels were -23.0% (95% CI: -27.8% to -18.2%) with a single dose of tonlamarsen and subsequent placebo and -67.2% (95% CI: -71.9% to -62.4%) with monthly tonlamarsen administration, with a LS mean difference of -44.1% (97.5% CI: -51.9% to -36.4%; P < 0.0001). The LS mean changes in office systolic BP were -6.7 mm Hg (95% CI: -9.8 to -3.5 mm Hg) for participants following a single dose of tonlamarsen and subsequent placebo and -6.7 mm Hg (95% CI: -9.8 to -3.6 mm Hg) for participants treated with monthly tonlamarsen, with a LS mean difference of -0.1 mm Hg (95% CI: -4.5 to -4.4 mm Hg; P = 0.97). Serious adverse events were infrequent and similar between treatment groups.
CONCLUSIONS: Among individuals with uncontrolled hypertension, monthly tonlamarsen administration was more effective at lowering plasma angiotensinogen compared with a single tonlamarsen dose, but there was no additional BP reduction. (A Study to Investigate Tonlamarsen for the Treatment of Adults With Uncontrolled Hypertension [KARDINAL]; NCT06864104).