AzTrials
AzTrials

Coronary Artery DiseaseDISTAL-SVNCT07410364

Safety and Efficacy of CAG and PCI Via Distal Transradial Access in Patients With Small Vessels

A study testing Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath. and Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath. in people with Coronary Artery Disease, run by Cai gaojun, MD at 2 sites in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Randomized controlled trial of adaptive design for the safety and efficacy of coronary angiography and percutaneous coronary intervention via distal transradial access using a 6-French Glidesheath Slender in patients with small vessels. Read more about this study

Who is it for?
Ages 18 to 85 yearsHealthy volunteers can take part
Conditions the study is for
Coronary Artery Disease
What is being tested?
Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath. and Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath.
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
594 participants
Where
2 sitesChina
Study dates
24 Feb 2026to 1 Feb 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age between 18 and 85 years
  • Palpable pulses in both the distal radial artery and conventional radial artery
  • All patients signed informed consent forms prior to procedure

Who cannot join

  • Ultrasound assessment of the distal radial artery diameter ≥2.0mm or <1.0mm
  • Height ≥185.0cm
  • Patients with acute ST-segment elevation myocardial infarction, cardiogenic shock, or hemodynamic instability
  • Contraindications for puncture of the distal radial artery
  • Patients with Raynaud's syndrome
  • Patients with coagulation disorders or hematologic diseases
  • Patients currently enrolled in other clinical studies

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

gaojun GJ cai, PhD contact

+86 0519-85579192

caigaojun@wjrmyy.cn

feng F li, MD contact

+86 85579192

lifeng@wjrmyy.cn

China2 sites, 2 recruiting
  • Changzhou Wujin People's Hospital

    Changzhou, Jiangsu, 213017

    Gaojun Cai, MD, +86-0519-85579193, cgj982@126.com

    Recruiting
  • Wujin Hospital Affiliated with Jiangsu University.

    Changzhou, Jiangsu, 213017

    Recruiting

Other trials in China

About this study

Official title: Safety and Efficacy of 6-French Glidesheath Slender in Coronary Angiography and Percutaneous Coronary Intervention Via Distal Transradial Access in Patients With Small Vessels: A Single-Center, Adaptive, Randomized Controlled Study

Randomized controlled trial of adaptive design for the safety and efficacy of coronary angiography and percutaneous coronary intervention via distal transradial access using a 6-French Glidesheath Slender in patients with small vessels.

Read the detailed description

The safety and efficacy of coronary angiography and percutaneous coronary intervention via distal transradial access (dTRA) have been confirmed by a large number of studies, but there are still few studies on its safety and efficacy in patients with small vessels (distal radial artery diameter < 2.0mm). The 6-French Glidesheath Slender, with its smaller outer diameter, should be more suitable for patients with small vessels. To this end, we plan to conduct a single-center, adaptive, randomized controlled trial enrolling 594 patients aged 18-85 years old with distal radial artery diameters <2.0 mm and ≥1.0 mm who are scheduled to undergo coronary angiography and percutaneous coronary intervention via the distal radial artery approach in our center. The study employed a stratification-block randomized design. Stratification was performed based on patient gender, with a block size of 4 within each stratum. Eligible patients were randomly assigned in a 1:1 ratio to either the 6-French Glidesheath Slender group or the 6-French conventional sheath group.

The primary endpoint of the study was distal radial artery occlusion assessed by vascular ultrasound 24 hours postoperatively. Secondary endpoints included puncture success rate, procedure success rate, number of punctures, puncture time, total procedural time, visual analogue scale pain scores during sheath placement, bleeding, hematoma, arteriovenous fistula, finger numbness, and conventional radial artery occlusion at 24 hours postoperatively.

An interim analysis will be conducted when 50% of the total sample size (297 patients) is enrolled, with subsequent sample size adjustments based on preliminary study results.

The results of this study will provide evidence for the safety and efficacy of 6-French Glidesheath Slender for coronary angiography and percutaneous coronary intervention in patients with small vessels via distal transradial access, and provide information for the selection of the best sheath equipment for patients with small vessels.

Being tested
Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath., Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath.
Keywords
Distal radial artery, Small vessel, Ultrasound, Distal radial artery occlusion, Radial artery occlusion, Visual analog scale, Safety, Efficacy
Medical subject headings
Coronary Artery Disease, Arterial Occlusive Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath.Device

    Also called 6-French Glidesheath Slender

    Coronary angiography and percutaneous coronary intervention was performed in participants with small vessels (DRA < 2.0 mm) via the distal transradial access using a 6-French Glidesheath Slender sheath.

  • Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath.Device

    Also called 6-Fr Conventional sheath

    Coronary angiography and percutaneous coronary intervention was performed in participants with small vessels (DRA < 2.0 mm) via the distal transradial access using a 6-French Conventional sheath.

Study groups in NCT07410364
Study groupRoleWhat they receive
6-French Glidesheath Slender groupExperimentalPerforming coronary angiography and percutaneous coronary intervention via the distal transradial access using a 6-French Glidesheath Slender sheath.
Receives: Device: Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath.
6-F Conventional sheath groupSham comparatorPerforming coronary angiography and percutaneous coronary intervention via the distal transradial access using a 6-F Conventional sheath.
Receives: Device: Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Distal radial artery occlusion(dRAO)

    The dRAO is defined as the absence of blood flow in the distal radial artery assessed by the doppler ultrasound.

    Measured: 24 hours postoperatively.

Secondary outcomes (11)
  1. Puncture success

    Puncture success is defined as complete insertion of the artery sheath.

    Measured: Periprocedural

  2. Procedure success

    Procedure success is defined as the whole procedure was completed from the same access.

    Measured: Periprocedural

  3. Number of punctures

    The number of punctures is defined as the number of attempts made before a successful puncture.

    Measured: Periprocedural

  4. Puncture time(second)

    Puncture time is defined as the time from the end of local anaesthesia to the sheath completely implanted into the vessel.

    Measured: Periprocedural

  5. Procedural time(minute)

    Procedural time is defined as the time from the initiation of the puncture to the completion of the procedure.

    Measured: Periprocedural

  6. Visual Analogue Scale (VAS) pain scores(0-10) during sheath placement

    With a 10-cm straight line divided into 10 equal parts to rate pain with 0 indicating no pain and 10 for extreme pain.

    Measured: Periprocedural

  7. Bleeding

    Bleeding events are defined according to the BARC criteria.

    Measured: 24 hours postoperatively

  8. Haematoma

    Haematoma was assessed according to the mEASY( A modified version of the Early Discharge After Transradial Stenting of Coronary Arteries Study) classification.

    Measured: 24 hours postoperatively

  9. Arteriovenous fistula

    Number of participants with the arteriovenous fistula is assessed by the doppler ultrasound 24 hours postoperatively.

    Measured: 24 hours postoperatively.

  10. Finger numbness

    Number of participants with the finger numbness 24 hours postoperatively.

    Measured: 24 hours postoperatively

  11. Conventional radial artery occlusion (cRAO)

    The cRAO is defined as the absence of blood flow in the conventional radial artery assessed by the doppler ultrasound.

    Measured: 24 hours postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Feb 2026
  2. Study start24 Feb 2026
  3. Primary completion1 Feb 2028 (estimated)
  4. Study completion1 Feb 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
594 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07410364
Sponsor's protocol ID
2025-SR-229
Acronym
DISTAL-SV
Status last verified
Jan 2026
First submitted
21 Jan 2026
Last updated
19 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Li F, Zhou T, Fan X, Chen T, Shi G, Li L, Cai G. Safety and Efficacy of Distal Transradial Access in Patients With Small Diameter Distal Radial Artery: A Post Hoc Analysis of 2 Randomized Trials. Can J Cardiol. 2026 Jun;42(6):1221-1229. doi: 10.1016/j.cjca.2025.12.048. Epub 2025 Dec 30.

    PubMed 41478549
  • Kim Y, Ahn Y, Kim I, Lee DH, Kim MC, Sim DS, Hong YJ, Kim JH, Jeong MH. Feasibility of Coronary Angiography and Percutaneous Coronary Intervention via Left Snuffbox Approach. Korean Circ J. 2018 Dec;48(12):1120-1130. doi: 10.4070/kcj.2018.0181. Epub 2018 Aug 6.

    PubMed 30088362
  • Lin Y, Sun X, Chen R, Liu H, Pang X, Chen J, Dong S. Feasibility and Safety of the Distal Transradial Artery for Coronary Diagnostic or Interventional Catheterization. J Interv Cardiol. 2020 Dec 9;2020:4794838. doi: 10.1155/2020/4794838. eCollection 2020.

    PubMed 33380922
  • Tsigkas G, Papageorgiou A, Moulias A, Kalogeropoulos AP, Papageorgopoulou C, Apostolos A, Papanikolaou A, Vasilagkos G, Davlouros P. Distal or Traditional Transradial Access Site for Coronary Procedures: A Single-Center, Randomized Study. JACC Cardiovasc Interv. 2022 Jan 10;15(1):22-32. doi: 10.1016/j.jcin.2021.09.037. Epub 2021 Dec 15.

    PubMed 34922888
  • Chen T, Huang H, Li L, Yang A, Shi G, Li F, Lu W, Xu L, Cai G. Analysis of the diameter of the distal radial artery at anatomic snuffbox by ultrasonography in patients scheduled for coronary intervention. J Vasc Access. 2025 May;26(3):896-903. doi: 10.1177/11297298241250263. Epub 2024 May 16.

    PubMed 38752401
  • Lu W, Chen T, Wang H, Yang A, Li L, Shi G, Xue S, Li F, Xiao J, Gu J, Zhang L, Liang X, Li W, Cai G. Comparison of the Effect of a 6-French Glidesheath Slender and a Conventional Sheath on Distal Radial Artery Occlusion: A Randomized Controlled Trial. Can J Cardiol. 2024 Nov;40(11):2292-2300. doi: 10.1016/j.cjca.2024.07.011. Epub 2024 Jul 19.

    PubMed 39032557
  • Chen T, Li L, Yang A, Huang H, Shi G, Li F, Li W, Lu W, Xu L, Li L, Cai G. Incidence of Distal Radial Artery Occlusion and its Influencing Factors After Cardiovascular Intervention Via the Distal Transradial Access. J Endovasc Ther. 2025 Oct;32(5):1408-1416. doi: 10.1177/15266028231208638. Epub 2023 Oct 31.

    PubMed 37906607
  • Chen T, Li L, Li F, Lu W, Shi G, Li W, Yang A, Huang H, Xiao J, Zhang Q, Gu J, Xue S, Zhang L, Li L, Xu L, Ji R, Wang H, Cai G. Comparison of long-term radial artery occlusion via distal vs. conventional transradial access (CONDITION): a randomized controlled trial. BMC Med. 2024 Feb 8;22(1):62. doi: 10.1186/s12916-024-03281-7.

    PubMed 38331793

Questions about this trial

What is this clinical trial studying?

A study testing Performing coronary angiography and percutaneous coronary intervention via the distal transradial access in patients with small vessels (DRA < 2.0 mm) using a 6-Fr Glidesheath Slender sheath. and Performing coronary interventional procedures via the distal radial artery in patients with small vessels ( DRA diameter < 2.0 mm ) using a 6-Fr Conventional sheath. in people with Coronary Artery Disease, run by Cai gaojun, MD at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 19 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact gaojun GJ cai, PhD (+86 0519-85579192, caigaojun@wjrmyy.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Distal radial artery occlusion(dRAO) (time frame: 24 hours postoperatively.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07410364, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 May 2026; AzTrials last refreshed its copy on 8 Nov 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in