Efficacy and Safety of Ultrasound Modulation of Stellate Ganglion for the Prevention of Ventricular Arrhythmia in Patients With ST-segment Elevation Myocardial Infarction
US-PRAY
2 other identifiers
interventional
100
1 country
7
Brief Summary
The goal of this multicenter, double-blind, randomized controlled trial is to evaluate the efficacy and safety of low-intensity focused ultrasound (LIFU) stellate ganglion modulation for preventing ventricular arrhythmias after ST-segment elevation myocardial infarction (STEMI) in patients undergoing percutaneous coronary intervention (PCI). The main questions it aims to answer are:
- 1.Does LIFU reduce the frequency and duration of ventricular arrhythmias within 72 hours post-PCI compared to sham ultrasound?
- 2.Does LIFU improve electrophysiological stability, myocardial injury markers, cardiac function and heart rate variability, and reduce inflammatory markers and sympathetic neurotransmitters?
- 3.What is the safety profile of LIFU in this population?
- 4.Complete pre-PCI screening and baseline assessments (informed consent, demographic/medical history, physical examination, electrocardiogram, echocardiogram, blood sample collection) within 12 hours of symptom onset
- 5.Receive 1 assigned ultrasound intervention during PCI, followed by 1 daily intervention for 7 consecutive days postoperatively
- 6.Undergo 72h continuous ECG monitoring post-PCI, blood sampling at baseline and postoperative days 1, 3, 7, and echocardiography assessment at postoperative day 7
- 7.Have all adverse events and arrhythmias recorded throughout the study
- 8.May withdraw voluntarily at any time without affecting routine medical care
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2026
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 28, 2026
CompletedStudy Start
First participant enrolled
May 5, 2026
CompletedFirst Posted
Study publicly available on registry
May 14, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2027
May 14, 2026
April 1, 2026
11 months
April 28, 2026
May 12, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Number of ventricular arrhythmias
Measurement: Count of ventricular arrhythmia episodes. Measurement device: Wearable Holter monitors.
72 hours after PCI
Duration of ventricular arrhythmias
Measurement: Duration of ventricular arrhythmia episodes. Measurement device: Wearable Holter monitors.
72 hours after PCI
NT-proBNP
Serum N-terminal pro-brain natriuretic peptide concentration; Unit: pg/mL
Baseline and 1, 3, 7 days after PCI
Secondary Outcomes (26)
IL-1β level
Baseline and 1, 3, 7 days after PCI
Norepinephrine level
Baseline and 1, 3, 7 days after PCI
Cardiac troponin T (cTnT) level
Baseline and 1, 3, 7 days after PCI
SDNN
72 hours after PCI
Left ventricular ejection fraction (LVEF)
7 days after PCI
- +21 more secondary outcomes
Study Arms (2)
Ultrasound stimulation group
EXPERIMENTALSubjects in this arm will receive low-intensity focused ultrasound (LIFU) intervention targeting the left stellate ganglion. The ultrasound probe and skin are disinfected, ultrasound coupling gel is applied, the probe is placed on the skin surface corresponding to the anatomical location of the left stellate ganglion, fixed with a robotic arm, and the instrument is activated. Ultrasound parameters: power 2.0 W, frequency 1 MHz, 50% duty cycle, 30 minutes per session. One session is performed during PCI, followed by once daily for 7 consecutive days postoperatively. All subjects will receive standard cardiovascular care in accordance with 2025 ACC/AHA guidelines, including PCI and indicated medications.
Sham group
PLACEBO COMPARATORSubjects in this arm will receive sham ultrasound intervention targeting the left stellate ganglion. The ultrasound probe and skin are disinfected, ultrasound coupling gel is applied, the probe is placed on the skin surface corresponding to the anatomical location of the left stellate ganglion and fixed with a robotic arm. No ultrasound energy is delivered, while the instrument maintains an identical appearance and operational state to the active LIFU arm. Ultrasound parameters: power 2.0 W, frequency 1 MHz, 50% duty cycle, 30 minutes per session. One sham session is performed during PCI, followed by once daily for 7 consecutive days postoperatively. All subjects will receive standard cardiovascular care in accordance with 2025 ACC/AHA guidelines, including PCI and indicated medications.
Interventions
Subjects in this arm will receive low-intensity focused ultrasound (LIFU) intervention targeting the left stellate ganglion. The ultrasound probe and skin are disinfected, ultrasound coupling gel is applied, the probe is placed on the skin surface corresponding to the anatomical location of the left stellate ganglion, fixed with a robotic arm, and the instrument is activated. Ultrasound parameters: power 2.0 W, frequency 1 MHz, 50% duty cycle, 30 minutes per session. One session is performed during PCI, followed by once daily for 7 consecutive days postoperatively. All subjects will receive standard cardiovascular care in accordance with 2025 ACC/AHA guidelines, including PCI and indicated medications.
Subjects in this arm will receive sham ultrasound intervention targeting the left stellate ganglion. The ultrasound probe and skin are disinfected, ultrasound coupling gel is applied, the probe is placed on the skin surface corresponding to the anatomical location of the left stellate ganglion and fixed with a robotic arm. No ultrasound energy is delivered, while the instrument maintains an identical appearance and operational state to the active LIFU arm. Ultrasound parameters: power 2.0 W, frequency 1 MHz, 50% duty cycle, 30 minutes per session. One sham session is performed during PCI, followed by once daily for 7 consecutive days postoperatively. All subjects will receive standard cardiovascular care in accordance with 2025 ACC/AHA guidelines, including PCI and indicated medications.
Eligibility Criteria
You may qualify if:
- Age between 18 and 80 years (including 18 and 80 years); gender is not restricted;
- Agree to be randomly assigned to a treatment strategy and be able to undergo follow-up as required;
- Patients with a clinical diagnosis of acute ST-segment elevation myocardial infarction;
- Presented within 12 hours of symptom onset and underwent PCI;
- Killip functional class I-III;
- Agree to participate in this study and voluntarily sign the informed consent form.
You may not qualify if:
- Patients with a history of myocardial infarction;
- Patients with a history of cardiac pacemaker or implantable cardioverter-defibrillator (ICD) implantation;
- Patients with severe bradycardia or high-degree atrioventricular block;
- Patients with severe heart failure (left ventricular ejection fraction \<30%);
- Patients with cardiogenic shock (Killip Class IV);
- Patients admitted with frequent ventricular fibrillation or cardiac arrest;
- Patients with a history of malignant hematological disorders or renal failure (estimated eGFR \<30 ml/min);
- Patients with skin lesions, infections, or benign or malignant tumors in the left neck;
- Pregnant or breastfeeding women, or women planning to become pregnant during the study;
- Patients with severe cognitive impairment, psychiatric disorders, epilepsy, etc.;
- Patients with concurrent malignant tumors or diseases of vital organs;
- Patients with active systemic infections;
- Patients who have participated in other drug or medical device clinical trials within the past 3 months;
- Patients who are unable or unwilling to provide informed consent;
- Patients deemed unsuitable for participation in this clinical trial by the investigator.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Renmin Hospital of Wuhan Universitylead
- Wuhan Third Hospitalcollaborator
- Xiangyang Central Hospitalcollaborator
- Wuhan Central Hospitalcollaborator
- Taihe Hospitalcollaborator
- Jingzhou Central Hospitalcollaborator
- Huangshi Central Hospitalcollaborator
Study Sites (7)
Huangshi Central Hospital
Huangshi, Hubei, 430060, China
Jingzhou Central Hospital
Jingzhou, Hubei, 430060, China
Shiyan Taihe Hospital
Shiyan, Hubei, 430060, China
Renmin Hospital of Wuhan University
Wuhan, Hubei, 430060, China
Wuhan Central Hospital
Wuhan, Hubei, 430060, China
Wuhan Third Hospital
Wuhan, Hubei, 430060, China
Xiangyang Central Hospital
Xiangyang, Hubei, 430060, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Chief Physician & Associate Professor
Study Record Dates
First Submitted
April 28, 2026
First Posted
May 14, 2026
Study Start
May 5, 2026
Primary Completion (Estimated)
April 1, 2027
Study Completion (Estimated)
April 1, 2027
Last Updated
May 14, 2026
Record last verified: 2026-04