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Prospective Evaluation for Receiving SynFlow 3.0 Interventional Circulatory Support in High-risk PCI: A Randomized Controlled Trial

Safety and Efficacy of the SynFlow 3.0 Percutaneous Transvalvular Ventricular Assist System in Patients Undergoing High-Risk PCI: A Prospective, Multicenter, Randomized Controlled, Non-inferiority Trial (PERSIST Ⅲ Study)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06853470
Acronym
PERSIST Ⅲ
Enrollment
222
Registered
2025-03-03
Start date
2024-09-10
Completion date
2025-08-13
Last updated
2026-08-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Arterial Disease (CAD), High Risk PCI

Brief summary

This study is conducted to compare the effectiveness of a new percutaneous mechanical circulatory support device called SynFlow 3.0 with VA-ECMO in high-risk percutaneous coronary intervetnion(PCI) patients. The objective of this study is to see if SynFlow 3.0 can provide similar or better support during high-risk PCI compared to VA-ECMO. Specifically, the following questions is to be answered in this study: Can SynFlow 3.0 provide sufficient hemodynamic support for patients during high-risk PCI and the effect be similar to VA-ECMO? Does SynFlow 3.0 offer other clinical benefits compared to VA-ECMO? By answering these questions, it will be determined if SynFlow 3.0 can be a viable alternative to VA-ECMO for patients undergoing high-risk PCI.

Detailed description

The study is a prospective, multicenter, randomized controlled trial under the Good Clinical Principles(GCP) carried out in more than 15 research centers over China. Patients with 3-vessel disease, unprotected left main coronary artery disease or last patent conduit and severly depressed left ventricular function (LVEF≤35%) will be enrolled and undergo non-emergent PCI, and be randomized 1:1 to receive either the SynFlow 3.0 or VA-ECMO support during the PCI. The primary endpoint is the incidence of 30-day major adverse events.

Interventions

DEVICESynFlow 3.0 circulatory support

The SynFlow 3.0 is a novel percutaneous left ventricular-assist device that can provide temporary hemodynamic support during high-risk procedure.

PROCEDUREpercutaneous coronary intervention

The percutaneous coronary intervention is a percutaneous endovascular intervention technique that can restore coronary blood flow by various intervention methods such as angioplasty and stent implantation.

DEVICEVA-ECMO circulatory support

Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is a percutaneous mechanical circulatory support device that can provide short-term hemodynamic support during high-risk PCI.

Sponsors

ForQaly Medical (Shanghai) Co., Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

1. The investigator assesses that the subject requires coronary revascularization, but CABG is considered as high-risk or the subject refuses CABG. The investigator considers the subject may benefit from PCI. 2. Left ventricular ejection fraction (LVEF) ≤ 35%. 3. Coronary angiography (CAG) or coronary computed tomography angiography (CTA) shows any of the following conditions: 1. last patent conduit (occluded vessel diameter ≥ 2.5 mm). 2. unprotected left main (LM) coronary artery disease. 3. Three-vessel disease (stenosis ≥ 70%). \*Three-vessel disease is defined as at least one significant stenosis (≥ 70%) lesion in all three major epicardial coronary artery territories: left anterior descending artery (LAD) and/or its branches, left circumflex artery (LCX) and/or its branches, and right coronary artery (RCA) and/or its branches. In the case of left coronary artery dominance, a lesion in the LAD and the proximal LCX qualified as three-vessel disease. 4. The subject is able to understand the purpose of the trial and sign the informed consent form, and is likely to be compliant to and willing to receive the clinical follow up after discharge.

Exclusion criteria

1. STEMI within 24 hours. 2. Cardiac arrest within 24 hours. 3. Cardiogenic shock (CS) or acute decompensation of chronic heart failure (Cardiogenic shock is defined as systemic hypotension \[systolic blood pressure \<90 mmHg or requiring inotropes/vasopressors to maintain systolic blood pressure \>90 mmHg\] and any of the followings: ongoing need for inotropes/vasopressors before entering the catheterization lab, any clinical evidence of end-organ hypoperfusion, or use of IABP or other circulatory support devices). 4. History of stroke or TIA within one month prior to the procedure. 5. Contraindications to or inability to place pVAD and ECMO (including but not limited to: left ventricular thrombus, presence of a mechanical aortic valve or cardiac contractile device, moderate to severe aortic stenosis, moderate to severe aortic regurgitation, stents in peripheral access or severe peripheral vascular disease such as tortuosity and dissection which impedes device placement, aortic dissection, aortic aneurysm, or severe abnormalities of ascending aorta or aortic arch , hematological diseases causing fragility of blood cells or hemolysis , hypertrophic obstructive cardiomyopathy). 6. Presence or suspicion of active systemic infection. 7. Known contraindications to heparin (including heparin-induced thrombocytopenia), contrast agents, or study-required medications (e.g., aspirin, clopidogrel). 8. Uncorrectable coagulopathy prior to the procedure, including platelet count ≤75×10\^9\^/L or INR ≥2.0. 9. Liver dysfunction: liver enzymes and bilirubin of more than 3 times the upper limit of the normal value. 10. Renal dysfunction: undergoing dialysis or serum creatinine ≥4 mg/dL (353.6 µmol/L). 11. Severe right heart failure or severe tricuspid regurgitation. 12. Pregnant or lactating women, or women planning pregnancy during the trial. 13. Participation in another drug or medical device clinical trial without reaching the primary endpoint. 14. Other conditions deemed by the investigator as unsuitable for participation in this trial.

Design outcomes

Primary

MeasureTime frame
Incidence of Major Adverse Events (MAE)Up to 30 days

Secondary

MeasureTime frame
Incidence of MAEUp to 90 days
Incidence of major adverse cardiac and cerebral events (MACCE)Up to 30 days, up to 90days
the change of left ventricular ejection fraction (LVEF) compared to baselinebefore discharge, at 30±7 days, at 90±14 days
the change of New York Heart Association (NYHA) class compared to baselinebefore discharge, at 30±7 days, at 90±14 days
Total length of hospital stayUp to 30 days
ICU/CCU length of stayUp to 30 days
Incidence of adverse eventsUp to 90 days
Incidence of serious adverse eventsUp to 90 days

Countries

China

Contacts

PRINCIPAL_INVESTIGATORJianan Wang, Phd

Second Affiliated Hospital, Zhejiang University, School of Medicine

PRINCIPAL_INVESTIGATORDan Song, Phd

Wuhan Asia Heart Hospital

PRINCIPAL_INVESTIGATORBo Luan, Phd

Liaoning Provincial People's Hospital

PRINCIPAL_INVESTIGATORChuanyu Gao, Phd

Fuwai Huazhong Cardiovascular Hospital

PRINCIPAL_INVESTIGATORCheng Zhang, Phd

Qilu Hospital of Shandong University

PRINCIPAL_INVESTIGATORJingping Wang, Phd

Shanxi Cardiovascular Hospital

PRINCIPAL_INVESTIGATORZuyi Yuan, Phd

First Affiliated Hospital Xi'an Jiaotong University

PRINCIPAL_INVESTIGATORYining Yang, Phd

People's Hospital of Xinjiang Uygur Autonomous Region

PRINCIPAL_INVESTIGATORYan Wang

Xiamen Cardiovascular Hospital

PRINCIPAL_INVESTIGATORYan Li, Phd

The Second Affiliated Hospital of Air Force Military Medical University

PRINCIPAL_INVESTIGATORYansong Guo, Phd

Fujian Provincial Hospital

PRINCIPAL_INVESTIGATORMing Bai, Phd

LanZhou University

PRINCIPAL_INVESTIGATORRenqiang Yang, Phd

Second Affiliated Hospital of Nanchang University

PRINCIPAL_INVESTIGATORJiancheng Xiu, Phd

Nanfang Hospital, Southern Medical University

PRINCIPAL_INVESTIGATORJianhong Tao, Phd

Sichuan Academy of Medical Sciences

PRINCIPAL_INVESTIGATORMin Dai, Phd

Mianyang Central Hospital

PRINCIPAL_INVESTIGATORLin Zhao, Phd

Beijing Chao Yang Hospital

STUDY_CHAIRYundai Chen, Phd

First Medical Center of the General Hospital of the People's Liberation Army

STUDY_CHAIRJunbo Ge, Phd

Shanghai Zhongshan Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 6, 2026