Hypertension Clinical Trial
Official title:
Focused Power Ultrasound Mediated Inferior Perirenal Adipose Tissue Modification Therapy for Essential Hypertension: a Multicenter, Randomized, Controlled Phase II/III Clinical Trial (PARADISE HTN-III)
This seamless two-stage phase II/III clinical trial aims to evaluate the efficacy and safety of a novel focused power ultrasound mediated inferior perirenal adipose tissue modification therapy for essential hypertension. Stage 1 is a phase II, multicenter, open-label, randomized trial to determine the optimal treatment strategy. Stage 2 is a phase III, multicenter, randomized, double-blind trial investigating the efficacy and safety of optimal treatment strategy compared to sham control.
The increase of visceral fat is closely related to the occurrence of hypertension, and it is one of the main independent risk factors of hypertension. Visceral fat has been recognized as an important endocrine organ, and a variety of factors secreted by visceral fat lead to an increased risk of cardiovascular disease. Peri-renal fat is a special type of visceral fat which is different from other type of visceral fat in histology, physiology, and functions. The positon of peri-renal fat is more stable than other visceral fat, which might be influenced by breath or body position changes. Studies have found that perirenal fat is an early predictor of ASCVD, and its accumulation is closely related to the occurrence and development of ASCVD. Therefore, the reduction or modification of visceral fat, especially peri-renal fat, has a sufficient scientific basis for the treatment of hypertension. In the investigators' previous experiments, this novel focused power ultrasound can rapidly and efficiently promote the perirenal adipose tissue fibrosis and control the blood pressure in the model of swine. Moreover, the investigators performed a single arm, small sample study to investigate the feasibility of the novel focused power ultrasound to modify the inferior perirenal adipose tissue in human volunteers, showing that this kind of method was feasible and safe. This seamless two-stage phase II/III clinical trial aims to evaluate the efficacy and safety of a novel focused power ultrasound mediated inferior perirenal adipose tissue modification therapy for essential hypertension. In Stage 1, 30 participants will be 1:1:1 randomly allocated to 3 intervention groups (single treatment group, consecutive treatment group A, and consecutive treatment group B). The optimal treatment strategy will be selected based on the decrease of blood pressure and safety evaluation and proceed to Stage 2. In Stage 2, participants will be randomly assigned to intervention group (optimal treatment strategy selected formerly in Stage 1) and sham control group. ;
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