NCT06835829

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

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
480

participants targeted

Target at P75+ for not_applicable

Timeline
5mo left

Started Dec 2025

Shorter than P25 for not_applicable

Geographic Reach
2 countries

6 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress47%
Dec 2025Sep 2026

First Submitted

Initial submission to the registry

February 1, 2025

Completed
18 days until next milestone

First Posted

Study publicly available on registry

February 19, 2025

Completed
11 months until next milestone

Study Start

First participant enrolled

December 31, 2025

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

March 4, 2026

Status Verified

March 1, 2026

Enrollment Period

6 months

First QC Date

February 1, 2025

Last Update Submit

March 2, 2026

Conditions

Keywords

Trasnradial accessDistal radial accessUltrasound guidancePotassium ferrateHemostasis

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

EXPERIMENTAL
Device: Distal radial potassium ferrate hemostatic patch

Conventional transradial access

ACTIVE COMPARATOR
Device: Transradial potassium ferrate hemostatic patch

Distal radial access ultrasound-guided

EXPERIMENTAL
Procedure: Ultrasound-guidance

Distal radial access conventional guidance

ACTIVE COMPARATOR
Procedure: Conventional guidance

Interventions

Use of a potassium ferrate hemostatic patch to enhance transradial access hemostasis

Conventional transradial access

Use of a potassium ferrate hemostatic patch to enhance distal radial access hemostasis

Distal radial access

Ultrasound guidance for distal radial access

Distal radial access ultrasound-guided

Conventional guidance for distal radial access

Distal radial access conventional guidance

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

RECRUITING

CHU Charleroi-Chimay, Marie Curie Hospital

Charleroi, 6042, Belgium

RECRUITING

CHU Helora, Jolimont Hospital

La Louvière, 7100, Belgium

RECRUITING

Sant'Eugenio Hospital

Roma, RM, 00144, Italy

RECRUITING

Sandro Pertini Hospital

Roma, RM, 00157, Italy

RECRUITING

Mater Salutis Hospital

Legnago, VR, 37045, Italy

RECRUITING

Central Study Contacts

Gregory A Sgueglia, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Prospective open-label, randomized, controlled trial that integrates two independent nonfactorial randomized comparisons. In the first comparison, 480 patients will be randomized in 1:1 ratio to either to conventional transradial access or distal radial access using the potassium ferrate patch for hemostasis enhancement. In the second comparison, the 240 patients assigned to distal radial access will be randomized 1:1 to either conventional artery puncture or ultrasound-guided puncture.
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

Locations