Use of Mechanical Left ventricuLar Unloading in Complex Higher-risk Indicated Procedures
UNLOAD-CHIP
Use of mechaNical Left ventricuLar unlOADing in Complex Higher-risk Indicated Procedures
2 other identifiers
interventional
98
1 country
8
Brief Summary
If there is a narrowing or blockage in the coronary arteries of the heart, the cardiologist may choose to treat this blockage. This is called percutaneous coronary intervention (PCI), which involves both balloon angioplasty and the placement of a stent. PCI is a commonly performed and safe procedure. However, in your case, the procedure is more complicated than usual due to the location and nature of the narrowing, the required technique for the intervention, and the fact that your heart function is reduced. As a result, your PCI will carry a higher risk than usual. During the procedure, balloons are inflated to clear the blockage, and a stent is placed to keep the artery open. This temporarily reduces or even stops the blood and oxygen supply to a large portion of the heart. This moment presents a higher risk for complications, such as low blood pressure or cardiac arrest. As a result, the heart may not pump blood effectively throughout the body, which can lead to oxygen deprivation in other organs. To help the heart in this situation, it is possible to insert a mechanical heart pump during the procedure. This form of support is introduced via an artery in the groin into your left ventricle. The pump helps the heart function and may improve the circulation to the body's organs. On the other hand, the placement of the pump increases the chance of complications. Therefore, there are both potential benefits and risks. It is currently unclear whether PCI with the temporary pump can be performed more safely than without it. This study aims to investigate whether mechanical circulatory support, specifically with the Pulsecath iVAC2L, leads to improved outcomes for patients undergoing high-risk PCI.
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 Jan 2024
Typical duration for not_applicable
8 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
Study Start
First participant enrolled
January 25, 2024
CompletedFirst Submitted
Initial submission to the registry
January 8, 2026
CompletedFirst Posted
Study publicly available on registry
February 2, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2027
February 2, 2026
January 1, 2026
3.1 years
January 8, 2026
January 26, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Combined endpoint: - All-cause death - Cardiogenic shock (SCAI stage C-E) - (Need for) renal replacement therapy - (Need for) mechanical ventilation - Ventricular arrhythmias leading to loss of cardiac output requiring CPR
30 days
Secondary Outcomes (16)
PCWP (Δ max)
Periprocedural
LVEDP (Δ max)
Periprocedural
CO / CI / CPO (Δ max)
Periprocedural
SvO2 (Δ max)
Periprocedural
Drop in arterial pressure (MAP <60 OR SBP <90) for >10 minutes
Periprocedural
- +11 more secondary outcomes
Other Outcomes (4)
Major vascular events
30 days
Limb ischemia
30 days
Bleeding events (BARC 3 and 5)
30 days
- +1 more other outcomes
Study Arms (2)
Standard-of-Care (without MCS)
NO INTERVENTIONPatients will undergo high-risk PCI without upfront use of MCS
Pulsecath iVAC2L (with MCS)
EXPERIMENTALPatients will undergo high-risk PCI with upfront use of the Pulsecath iVAC2L (MCS)
Interventions
The Pulsecath iVAC2L is a pulsatile pump, placed in the left ventricle, that ejects blood into the ascending aorta at a flow up to 2L/min. Theoretically, pulsatility maintains the physiological vascular responses and endothelial function at the level of the -systemic and -micro circulation and might offer benefit when compared to continues flow devices such as Impella. In contrast, IABP (which also offers pulsatile support), lacks the possibility of active unloading. Therefore, the combination of those features in the PulseCath iVAC2L is unique.
Eligibility Criteria
You may qualify if:
- Age ≥18 years AND
- Multidisciplinary heart team consensus for high risk PCI +/- MCS AND
- Hemodynamically stable (SCAI A-B) AND
- LVEF \<30% OR LVEF \<35% with moderate MR OR LVEF \<40% with severe MR AND
- Complex left main disease (calcium modifying techniques deemed necessary OR 2-stent techniques, left dominant system) OR equivalent (ostial LAD and RCX) OR last remaining vessel (native).
You may not qualify if:
- Contraindications for Pulsecath IVAC2L:
- severe aortic regurgitation
- known presence of an LV thrombus (contrast echo/MRI)
- Mechanical aorta valve prosthesis
- severe aortic valve stenosis
- peripheral arterial disease that would preclude placement of the PulseCath iVAC2L device
- Cardiogenic shock defined as either SCAI CSWG stage C-E
- Patient is intubated and mechanically ventilated
- Stroke \<3 months
- Major bleeding event \<3 months
- History of bleeding diathesis or known coagulopathy (including heparin-induced thrombo-cytopenia), any recent GU or GI bleed, or will refuse blood transfusions.Renal replacement therapy
- Pregnancy, or suspected thereof.
- BMI \> 35
- Other medical, social, or psychological problems that, in the opinion of the Investigator, compromises the subject's ability to give written informed consent and/or to comply with study procedures.
- Subject belongs to a vulnerable population (defined as individuals with mental disability, persons in nursing homes, impoverished persons, homeless persons, nomads, refugees and those permanently incapable of giving informed consent; vulnerable populations also may include members of a group with a hierarchical structure such as university students, subordinate hospital and laboratory personnel, employees of the Sponsor, members of the armed forces and persons kept in detention).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Amsterdam UMC, location VUmclead
- Pulsecath BV.collaborator
Study Sites (8)
Amsterdam University Medical Center
Amsterdam, Netherlands
Zuyderland
Geleen, Netherlands
University Medical Center Groningen
Groningen, Netherlands
Leiden University Medical Center
Leiden, Netherlands
Maastricht University Medical Center
Maastricht, Netherlands
Radboud University Medical Center
Nijmegen, Netherlands
Haaglanden Medical Center
The Hague, Netherlands
University Medical Center Utrecht
Utrecht, Netherlands
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
January 8, 2026
First Posted
February 2, 2026
Study Start
January 25, 2024
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
March 1, 2027
Last Updated
February 2, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
The publication rights in regard to the main results of the trial, i.e., regarding the primary and secondary objectives, belong to the sponsor. No individual investigator may publish on the results of this trial, or their own patients, without prior approval from the sponsor.