Comparing Advanced Hemostasis and Ultrasound-Guided Puncture to Conventional Approaches in Distal Radial Access
ALPHA&OMEGA
1 other identifier
interventional
480
2 countries
6
Brief Summary
Meta-analysis results show that distal radial access (DRA) is associated with a significant reduction in the risk of radial artery occlusion compared to conventional transradial access (TRA). This is of paramount importance in an evolving interventional context where an increasing number of radial access procedures are being performed to address a growing number of independent health conditions. DRA is also associated with a lower rate of vascular access-related adverse events, establishing it as the safest vascular access ever. However, available data show that the success rate of DRA is lower than that of conventional TRA. Also, while the duration of hemostasis has been shown to be shorter, it has most likely not yet reached its full potential for shortening. Thus, the two extreme phases of DRA require important further evaluation. The CompAring uLtrasound-guided Puncture and advanced HemostAsis to cOnventional approaches in distal radial access: a dual randoMizEd praGmatic triAl (ALPHA\&OMEGA) trial will address this lack of knowledge by exploring whether a significantly shorter hemostasis duration can be achieved with DRA when using hemostasis enhancement and exploring whether ultrasound-guided puncture can increase the success rate of DRA.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Dec 2025
Shorter than P25 for not_applicable
6 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
February 1, 2025
CompletedFirst Posted
Study publicly available on registry
February 19, 2025
CompletedStudy Start
First participant enrolled
December 31, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 30, 2026
March 4, 2026
March 1, 2026
6 months
February 1, 2025
March 2, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Hemostasis duration.
From end of procedure to end of hemostasis (25 minutes for distal radial access and 60 minutes for conventional transradial access)
Access success
Access success occurs when an introducer sheath can be properly placed through the punctured artery.
Starts when the anesthesia needle contacts the skin and stops when the introducer sheath has been properly placed (on average 1 minute)
Study Arms (4)
Distal radial access
EXPERIMENTALConventional transradial access
ACTIVE COMPARATORDistal radial access ultrasound-guided
EXPERIMENTALDistal radial access conventional guidance
ACTIVE COMPARATORInterventions
Use of a potassium ferrate hemostatic patch to enhance transradial access hemostasis
Use of a potassium ferrate hemostatic patch to enhance distal radial access hemostasis
Ultrasound guidance for distal radial access
Conventional guidance for distal radial access
Eligibility Criteria
You may qualify if:
- Age ≥18 years.
- Patients presenting with CCS or ACS, including unstable angina or NSTEMI.
- Patients planned for coronary angiography or PCI.
- Patients able to provide written informed consent.
- Patient is willing to comply with all study protocol required evaluations.
- Palpable radial pulse both at conventional and distal puncture site.
- Reverse modified Barbeau test confirming radial artery patency in patients with a history of previous radial artery catheterization.
You may not qualify if:
- Acute ST-segment elevation myocardial infarction.
- Cardiogenic shock.
- Chronic hemodialysis.
- Contraindications to radial access, such as occlusive upper arm peripheral artery disease, or known anatomic variants prohibiting TRA on both sides.
- Medical conditions that may cause non-compliance with the study protocol and/or may confound the data interpretation.
- Patients unable to provide written informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Groupe Vivalia, Clinique Saint-Joseph
Arlon, 6700, Belgium
CHU Charleroi-Chimay, Marie Curie Hospital
Charleroi, 6042, Belgium
CHU Helora, Jolimont Hospital
La Louvière, 7100, Belgium
Sant'Eugenio Hospital
Roma, RM, 00144, Italy
Sandro Pertini Hospital
Roma, RM, 00157, Italy
Mater Salutis Hospital
Legnago, VR, 37045, Italy
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
February 1, 2025
First Posted
February 19, 2025
Study Start
December 31, 2025
Primary Completion (Estimated)
June 30, 2026
Study Completion (Estimated)
September 30, 2026
Last Updated
March 4, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share