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Randomized Controlled Trial
. 2023 Feb 28;329(8):651-661.
doi: 10.1001/jama.2023.0713.

Endovascular Ultrasound Renal Denervation to Treat Hypertension: The RADIANCE II Randomized Clinical Trial

Collaborators, Affiliations
Randomized Controlled Trial

Endovascular Ultrasound Renal Denervation to Treat Hypertension: The RADIANCE II Randomized Clinical Trial

Michel Azizi et al. JAMA. .

Erratum in

  • Two Incorrect Names.
    [No authors listed] [No authors listed] JAMA. 2023 Jun 13;329(22):1989. doi: 10.1001/jama.2023.8136. JAMA. 2023. PMID: 37314287 Free PMC article. No abstract available.

Abstract

Importance: Two initial sham-controlled trials demonstrated that ultrasound renal denervation decreases blood pressure (BP) in patients with mild to moderate hypertension and hypertension that is resistant to treatment.

Objective: To study the efficacy and safety of ultrasound renal denervation without the confounding influence of antihypertensive medications in patients with hypertension.

Design, setting, and participants: Sham-controlled, randomized clinical trial with patients and outcome assessors blinded to treatment assignment that was conducted between January 14, 2019, and March 25, 2022, at 37 centers in the US and 24 centers in Europe, with randomization stratified by center. Patients aged 18 years to 75 years with hypertension (seated office systolic BP [SBP] ≥140 mm Hg and diastolic BP [DBP] ≥90 mm Hg despite taking up to 2 antihypertensive medications) were eligible if they had an ambulatory SBP/DBP of 135/85 mm Hg or greater and an SBP/DBP less than 170/105 mm Hg after a 4-week washout of their medications. Patients with an estimated glomerular filtration rate of 40 mL/min/1.73 m2 or greater and with suitable renal artery anatomy were randomized 2:1 to undergo ultrasound renal denervation or a sham procedure. Patients were to abstain from antihypertensive medications until the 2-month follow-up unless prespecified BP criteria were exceeded and were associated with clinical symptoms.

Interventions: Ultrasound renal denervation vs a sham procedure.

Main outcomes and measures: The primary efficacy outcome was the mean change in daytime ambulatory SBP at 2 months. The primary safety composite outcome of major adverse events included death, kidney failure, and major embolic, vascular, cardiovascular, cerebrovascular, and hypertensive events at 30 days and renal artery stenosis greater than 70% detected at 6 months. The secondary outcomes included mean change in 24-hour ambulatory SBP, home SBP, office SBP, and all DBP parameters at 2 months.

Results: Among 1038 eligible patients, 150 were randomized to ultrasound renal denervation and 74 to a sham procedure (mean age, 55 years [SD, 9.3 years]; 28.6% female; and 16.1% self-identified as Black or African American). The reduction in daytime ambulatory SBP was greater with ultrasound renal denervation (mean, -7.9 mm Hg [SD, 11.6 mm Hg]) vs the sham procedure (mean, -1.8 mm Hg [SD, 9.5 mm Hg]) (baseline-adjusted between-group difference, -6.3 mm Hg [95% CI, -9.3 to -3.2 mm Hg], P < .001), with a consistent effect of ultrasound renal denervation throughout the 24-hour circadian cycle. Among 7 secondary BP outcomes, 6 were significantly improved with ultrasound renal denervation vs the sham procedure. No major adverse events were reported in either group.

Conclusions and relevance: In patients with hypertension, ultrasound renal denervation reduced daytime ambulatory SBP at 2 months in the absence of antihypertensive medications vs a sham procedure without postprocedural major adverse events.

Trial registration: ClinicalTrials.gov Identifier: NCT03614260.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Azizi reported receiving grants from the European Horizon 2020 program; receiving grants and nonfinancial support from ReCor Medical and Idorsia; and receiving personal fees from Alnylam Pharmaceuticals, Poxel SA, Medtronic, and Novartis. Dr Saxena reported receiving grants from ReCor Medical, Ablative Solutions, Applied Therapeutics, Vascular Dynamics, and Merck Sharp and Dohme and receiving consulting fees from ReCor Medical, Esperion Therapeutics, Daiichi Sankyo, Novartis, and Vifor Pharma. Dr Jenkins reported institutional funding given to the Ochsner Medical Center from Medtronic, Abbott, Abiomed, and ReCor Medical and receiving personal fees for speaking engagements, proctoring, or consulting from Abbott, ReCor Medical, and Medtronic. Dr Devireddy reported receiving personal fees from ReCor Medical, Medtronic, Edwards Lifesciences, and Shockwave Medical. Dr Rader reported receiving personal fees from ReCor Medical, Medtronic, and Bristol Myers Squibb. Dr Fisher reported receiving grants and personal fees from ReCor Medical and receiving personal fees from Medtronic. Dr Schmieder reported receiving grants and personal fees from ReCor Medical, Medtronic, and Ablative Solutions. Dr Mahfoud reported receiving grants from Deutsche Gesellschaft für Kardiologie, Deutsche Forschungsgemeinschaft, and Deutsche Herzstiftung and receiving personal fees from ReCor Medical, AstraZeneca, Bayer, Boehringer Ingelheim, Inari, Medtronic, Merck, Servier, and Terumo. Dr Sanghvi reported receiving grants and personal fees from ReCor Medical and Medtronic and receiving grants from Cardiovascular Systems Inc. Dr Todoran reported receiving personal fees from ReCor Medical. Dr Flack reported receiving grants from GSK (formerly GlaxoSmithKline), Vascular Dynamics, Quantum Genomics, Idorsia, Janssen, and ReCor Medical and receiving personal fees from GSK, Amgen, Janssen, Teva Pharmaceuticals, and FibroGen. Dr Daemen reported receiving grants from ReCor Medical, Medtronic, Boston Scientific, Abbott Vascular, ACIST Medical Systems, AstraZeneca, MicroPort, Pie Medical Imaging, and PulseCath and receiving personal fees from Abbott Vascular, Abiomed, ReCor Medical, Medtronic, ACIST Medical Systems, Boston Scientific, Pie Medical Imaging, PulseCath, Cardialysis, CardiacBooster, Kaminari Medical, Sanofi, Siemens Healthineers, and Medtronic. Dr Sharp reported receiving personal fees from ReCor Medical, Medtronic, Boston Scientific, Penumbra, and Philips. Dr Lurz reported receiving institutional grants from ReCor Medical, Edwards Lifesciences, and Abbott. Dr Bloch reported receiving personal fees from ReCor Medical and Medtronic. Dr Weber reported receiving personal fees from ReCor Medical, Medtronic, and Ablative Solutions. Dr Lobo reported receiving personal fees from ReCor Medical, Medtronic, Ablative Solutions, and Vascular Dynamics and receiving grants from Medtronic. Dr Basile reported receiving grants from ReCor Medical and Ablative Solutions and receiving personal fees from ReCor Medical, Eli Lilly, and UpToDate. Ms Claude and Dr Reeve-Stoffer reported being employees of ReCor Medical. Dr McClure reported being an employee of NAMSA, which is a contractor for ReCor Medical. Dr Kirtane reported institutional funding given to Columbia University and/or the Cardiovascular Research Foundation from Medtronic, Boston Scientific, Abbott Vascular, Amgen, Abiomed, Cardiovascular Systems Inc, CathWorks, Siemens Healthineers, Philips, ReCor Medical, Neurotronics, Biotronik, Chiesi Farmaceutici, Bolt Medical, Magenta Medical, Canon Medical Systems, SoniVie, Shockwave Medical, and Merck and receiving personal fees from Neurotronics, Medtronic, Boston Scientific, Abbott Vascular, Abiomed, Cardiovascular Systems Inc, Interventional Medical Device Systems, CathWorks, Siemens Healthineers, Philips, ReCor Medical, Chiesi Farmaceutici, OpSens Medical, ZOLL Medical, and Regeneron Pharmaceuticals. No other disclosures were reported.

Figures

Figure 1.
Figure 1.. Patient Flow Through the RADIANCE II Trial
RADIANCE indicates A Study of the ReCor Medical Paradise System in Clinical Hypertension.
Figure 2.
Figure 2.. Twenty-Four Hour Ambulatory Profiles of Systolic Blood Pressure in Patients With Complete Ambulatory Measurements at Baseline and at 2 Months
There were 145 patients in the ultrasound renal denervation group and 73 patients in the sham procedure group with complete data. Data are expressed as mean (95% CI).
Figure 3.
Figure 3.. Individual Changes From Baseline to 2 Months in Daytime Ambulatory Systolic Blood Pressure in Patients With Complete Ambulatory Measurements
There were 145 patients in the ultrasound renal denervation group and 73 patients in the sham procedure group with complete data. There were 22 patients (total from both groups combined) who restarted antihypertensive treatment for any reason.

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