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Radial Artery OcclusionPhase 3CAPITAL-RAPTORNCT03630055

Rivaroxaban Post-Transradial Access for the Prevention of Radial Artery Occlusion

A Phase 3 study testing Rivaroxaban 15 MG Oral Tablet [Xarelto] in people with Radial Artery Occlusion, run by Ottawa Heart Institute Research Corporation at 3 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Coronary angiography is performed to evaluate for obstructive coronary artery disease. This is commonly performed via the transfemoral or transradial approach with the latter increasing in frequency. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Radial Artery Occlusion
What is being tested?
Rivaroxaban 15 MG Oral Tablet [Xarelto]
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
930 participants
Where
3 sitesin 2 countries
Study dates
3 Oct 2018to 26 Jun 2025
Phase
Phase 3
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Willing and able to provide written informed consent
  • Age ≥ 18 years
  • Diagnostic coronary angiography or percutaneous coronary intervention via the transradial approach

Who cannot join

  • Presence of a palpable hematoma or clinical concern of hemostasis at the transradial access site
  • Access or attempted access at a second site - including contralateral radial artery, brachial, or femoral artery or vein
  • Planned staged procedure, CABG or noncardiac surgery within 30 days
  • Contraindication or high risk of bleeding with anticoagulation
  • bleeding requiring medical attention in the previous 6 months
  • thrombocytopenia (platelets<50 x 109/L)
Show all 24Show fewer
  • prior intracranial hemorrhage
  • use of IIb/IIIa during percutaneous coronary intervention
  • administration of thrombolytic therapy in the preceding 24 hours
  • use of non-steroidal anti-inflammatory medications
  • ischemic stroke or transient ischemic attack diagnosed in the last 3 months
  • Cardiogenic shock
  • Ventricular arrhythmias refractory to treatment
  • Liver dysfunction (Child-Pugh class B or C)
  • Unexplained anemia with a Hgb below 100 g/L
  • History of medication noncompliance or risk factor for noncompliance
  • Active malignancy
  • Allergy to rivaroxaban
  • Another indication for anticoagulation
  • CYP3A4 and P-glycoprotein inhibitor use
  • Life expectancy <30 days
  • Women capable of pregnancy not on birth control
  • Chronic kidney disease with creatinine clearance of less than 30mL/min
  • History of antiphosphopholipid antibody syndrome

Trial locations and contacts

3 sites in 2 countries.

3 sites in 2 countries

Canada2 sites
  • Kingston Health Sciences Center

    Kingston, Ontario, K7L 2V7

  • University of Ottawa Heart Institute

    Ottawa, Ontario, K1Y4W7

Other trials in Canada

United States1 site
  • Mayo Clinic

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Coronary angiography is performed to evaluate for obstructive coronary artery disease. This is commonly performed via the transfemoral or transradial approach with the latter increasing in frequency. One of the most common complications of transradial access is radial artery occlusion occurring in ~5% of patients which prohibits the use of the radial artery in the future. There is evidence to support the use of intraprocedural anticoagulation to mitigate the risk of radial artery occlusion however the role of post-procedural anticoagulation has not been previously evaluated. Rivaroxaban is a direct oral anticoagulant (DOAC) with a safety profile superior to that of vitamin K antagonists. Given the safety profile, ease of use, and feasibility of DOAC therapy, our study will endeavor to evaluate the use of rivaroxaban 15mg orally once daily for 7 days after transradial access and the impact this has on the rate of radial artery occlusion.

Read the detailed description

Assessment of the coronary artery anatomy is commonly performed by coronary angiography (CA), which is the gold standard for evaluation of obstructive coronary artery disease (CAD). Coronary revascularization, opening of obstructed vessels, is most commonly performed by percutaneous coronary intervention (PCI) in patients with obstructive CAD. Traditionally, PCI is performed with implantation of one or more permanent metallic stents which act as a scaffold for arterial recoil and, in the case of drug eluting stents (DES), provide a platform for delivery of anti-proliferative agents. The transradial access (TRA) has rapidly emerged as the preferred vascular access site for CA and PCI with more than 50% of all coronary angiograms being performed via this approach.

There are several advantages to TRA for angiography including rapid hemostasis, early ambulation after the procedure thereby improving patient comfort and experience, and a decrease in the length of hospital stay. There is also a reported reduction in all-cause mortality, major adverse cardiovascular events, major bleeding, and vascular complications with TRA as compared to transfemoral access. However, radial artery occlusion (RAO) remains an important complication of this procedure as it precludes the reuse of this artery for future transradial approaches as well as the use of the vessel as a conduit for coronary artery bypass grafting.

Reports of RAO post-TRA has varied in the literature from ~4-10% in observational and randomized trials. In the largest systematic review published to date, the overall rate of RAO was 5.2% amongst the 46,631 subjects across 92 studies between 1989 and 2016. This systematic review also noted that the rate of early (i.e. <7 days) vs. late (i.e. >7 days) RAO was significantly higher which is suggestive of late recanalization in some patients. The factors which affect recanalization are not clear however standard of care involves administration of heparin during the procedure and patent hemostasis following the procedure. Patent hemostasis is performed by applying a delicate balance of pressure to prevent bleeding but not to the point of completely occlude the blood vessel and cessation of blood flow distally.

Numerous trials have explored the role of anticoagulation during angiography to reduce RAO and a recently published systematic review and meta-analysis demonstrated more intensive anticoagulation is protective. Indeed, this remains an active area of research with numerous ongoing trials evaluating the effect of intensive or higher dose anticoagulation during the procedure for prevention of RAO. Additionally, there were higher rates of RAO with diagnostic angiography as opposed to PCI purportedly as the latter involves higher doses of anticoagulation.

Direct oral anticoagulant (DOAC) therapy has provided a safer alternative with an improved bleeding profile over vitamin K antagonist anticoagulation therapy. The use of DOACs in cardiovascular medicine ranges from various conditions including stroke prevention in atrial fibrillation7-12 to venous thromboembolism13-16 to stable cardiovascular disease.

While intraprocedural anticoagulation has been studied extensively, a course of anticoagulation therapy post-TRA has not been studied. Given the safety profile, ease of use, and feasibility of DOAC therapy, our study will endeavor to evaluate the use of rivaroxaban 15mg orally once daily for 7 days after transradial access and the impact this has on the rate of RAO. Should this study prove to be positive, this could impact our routine standard of care with respect to having a strategy which could reduce the rate of this complication thereby preserving the radial artery for future access and/or as a conduit for coronary artery bypass grafting.

Being tested
Rivaroxaban 15 MG Oral Tablet [Xarelto]
Keywords
Direct oral anticoagulants, Transradial access, Percutaneous coronary intervention
Medical subject headings
Arterial Occlusive Diseases

What participants receive

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

  • Rivaroxaban 15 MG Oral Tablet [Xarelto]Drug

    Also called Xarelto

    Patients will receive rivaroxaban 15mg orally daily for 7 days following transradial access.

Study groups in NCT03630055
Study groupRoleWhat they receive
RivaroxabanExperimentalParticipants will receive rivaroxaban 15mg tablet to be taken orally once daily for 7 days. Follow up will be within 30 days where participants will undergo a Doppler ultrasound to assess for radial artery patency/occlusion.
Receives: Drug: Rivaroxaban 15 MG Oral Tablet [Xarelto]
Standard of CareNo interventionParticipants will not receive any anticoagulation. Follow up will be within 30 days where participants will undergo a Doppler ultrasound to assess for radial artery patency/occlusion.

What is being measured

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

  1. Primary efficacy outcome - rate of radial artery occlusion

    Presence of radial artery occlusion at 30 days post-transradial access as determined by Doppler ultrasound assessment of the participant's radial artery in the wrist.

    Measured: 30 days

  2. Primary safety outcome - International Society on Thrombosis and Haemostasis definition of major bleeding

    Bleeding as defined by the International Society on Thrombosis and Haemostasis at 30 days.

    Measured: 30 days

Secondary outcomes (11)
  1. All cause mortality

    Death from any cause as determined by the treating physician

    Measured: 30 days

  2. Stroke (ischemic or uncertain)

    Stroke (ischemic or uncertain) as defined by a treating neurologist

    Measured: 30 days

  3. Stroke (hemorrhagic)

    Stroke (hemorrhagic) as defined by a treating neurologist

    Measured: 30 days

  4. Fatal bleeding

    Bleeding resulting in death as defined by treating physician

    Measured: 30 days

  5. Symptomatic bleeding in a critical area or organ

    Intracranial, intraspinal, intraocular, retroperitoneal, intra-articular or pericardial bleeding or intramuscular bleeding with compartment syndrome

    Measured: 30 days

  6. Bleeding requiring medical attention

    Any bleeding that requires participant to seek medical attention

    Measured: 30 days

  7. GUSTO bleeding criteria

    Bleeding as defined by the Global Utilization Of Streptokinase And Tpa For Occluded Arteries (GUSTO) criteria

    Measured: 30 days

  8. TIMI bleeding criteria

    Bleeding as defined by the Thrombolysis in Myocardial Infarction (TIMI) criteria

    Measured: 30 days

  9. BARC bleeding criteria

    Bleeding as defined by the Bleeding Academic Research Consortium (BARC) criteria

    Measured: 30 days

  10. Myocardial infarction

    Myocardial infarction as defined by the third universal definition of myocardial infarction.

    Measured: 30 days

  11. Stent thrombosis

    Stent thrombosis as determined by the academic research consortium criteria.

    Measured: 30 days

Timeline

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

  1. First posted14 Aug 2018
  2. Study start3 Oct 2018
  3. Primary completion26 Jun 2025
  4. Study completion26 Jun 2025

Why it stopped: Assessment for futility

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Eligible patients will undergo a 1:1 randomization using a computer-generated randomization sequence to either receive a direct oral anticoagulant (i.e. rivaroxaban 15mg oral daily) for 7 days or to the standard of care arm (i.e. no rivaroxaban)
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
930 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03630055
Sponsor's protocol ID
20180319
Acronym
CAPITAL-RAPTOR
Status last verified
Jul 2024
First submitted
19 Jul 2018
Last updated
5 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Simard T, Hibbert B, Ramirez FD, Froeschl M, Chen YX, O'Brien ER. The evolution of coronary stents: a brief review. Can J Cardiol. 2014 Jan;30(1):35-45. doi: 10.1016/j.cjca.2013.09.012. Epub 2013 Nov 25.

    PubMed 24286961
  • Bertrand OF, Rao SV, Pancholy S, Jolly SS, Rodes-Cabau J, Larose E, Costerousse O, Hamon M, Mann T. Transradial approach for coronary angiography and interventions: results of the first international transradial practice survey. JACC Cardiovasc Interv. 2010 Oct;3(10):1022-31. doi: 10.1016/j.jcin.2010.07.013.

    PubMed 20965460
  • Schussler JM, Vasudevan A, von Bose LJ, Won JI, McCullough PA. Comparative Efficacy of Transradial Versus Transfemoral Approach for Coronary Angiography and Percutaneous Coronary Intervention. Am J Cardiol. 2016 Aug 15;118(4):482-8. doi: 10.1016/j.amjcard.2016.05.038. Epub 2016 May 29.

    PubMed 27378143
  • Ferrante G, Rao SV, Juni P, Da Costa BR, Reimers B, Condorelli G, Anzuini A, Jolly SS, Bertrand OF, Krucoff MW, Windecker S, Valgimigli M. Radial Versus Femoral Access for Coronary Interventions Across the Entire Spectrum of Patients With Coronary Artery Disease: A Meta-Analysis of Randomized Trials. JACC Cardiovasc Interv. 2016 Jul 25;9(14):1419-34. doi: 10.1016/j.jcin.2016.04.014. Epub 2016 Jun 29.

    PubMed 27372195
  • Hahalis G, Aznaouridis K, Tsigkas G, Davlouros P, Xanthopoulou I, Koutsogiannis N, Koniari I, Leopoulou M, Costerousse O, Tousoulis D, Bertrand OF. Radial Artery and Ulnar Artery Occlusions Following Coronary Procedures and the Impact of Anticoagulation: ARTEMIS (Radial and Ulnar ARTEry Occlusion Meta-AnalysIS) Systematic Review and Meta-Analysis. J Am Heart Assoc. 2017 Aug 23;6(8):e005430. doi: 10.1161/JAHA.116.005430.

    PubMed 28838915
  • Pancholy S, Coppola J, Patel T, Roke-Thomas M. Prevention of radial artery occlusion-patent hemostasis evaluation trial (PROPHET study): a randomized comparison of traditional versus patency documented hemostasis after transradial catheterization. Catheter Cardiovasc Interv. 2008 Sep 1;72(3):335-340. doi: 10.1002/ccd.21639.

    PubMed 18726956
  • Gibson CM, Mehran R, Bode C, Halperin J, Verheugt FW, Wildgoose P, Birmingham M, Ianus J, Burton P, van Eickels M, Korjian S, Daaboul Y, Lip GY, Cohen M, Husted S, Peterson ED, Fox KA. Prevention of Bleeding in Patients with Atrial Fibrillation Undergoing PCI. N Engl J Med. 2016 Dec 22;375(25):2423-2434. doi: 10.1056/NEJMoa1611594. Epub 2016 Nov 14.

    PubMed 27959713
  • Patel MR, Mahaffey KW, Garg J, Pan G, Singer DE, Hacke W, Breithardt G, Halperin JL, Hankey GJ, Piccini JP, Becker RC, Nessel CC, Paolini JF, Berkowitz SD, Fox KA, Califf RM; ROCKET AF Investigators. Rivaroxaban versus warfarin in nonvalvular atrial fibrillation. N Engl J Med. 2011 Sep 8;365(10):883-91. doi: 10.1056/NEJMoa1009638. Epub 2011 Aug 10.

    PubMed 21830957
  • EINSTEIN-PE Investigators; Buller HR, Prins MH, Lensin AW, Decousus H, Jacobson BF, Minar E, Chlumsky J, Verhamme P, Wells P, Agnelli G, Cohen A, Berkowitz SD, Bounameaux H, Davidson BL, Misselwitz F, Gallus AS, Raskob GE, Schellong S, Segers A. Oral rivaroxaban for the treatment of symptomatic pulmonary embolism. N Engl J Med. 2012 Apr 5;366(14):1287-97. doi: 10.1056/NEJMoa1113572. Epub 2012 Mar 26.

    PubMed 22449293
  • Eikelboom JW, Connolly SJ, Bosch J, Dagenais GR, Hart RG, Shestakovska O, Diaz R, Alings M, Lonn EM, Anand SS, Widimsky P, Hori M, Avezum A, Piegas LS, Branch KRH, Probstfield J, Bhatt DL, Zhu J, Liang Y, Maggioni AP, Lopez-Jaramillo P, O'Donnell M, Kakkar AK, Fox KAA, Parkhomenko AN, Ertl G, Stork S, Keltai M, Ryden L, Pogosova N, Dans AL, Lanas F, Commerford PJ, Torp-Pedersen C, Guzik TJ, Verhamme PB, Vinereanu D, Kim JH, Tonkin AM, Lewis BS, Felix C, Yusoff K, Steg PG, Metsarinne KP, Cook Bruns N, Misselwitz F, Chen E, Leong D, Yusuf S; COMPASS Investigators. Rivaroxaban with or without Aspirin in Stable Cardiovascular Disease. N Engl J Med. 2017 Oct 5;377(14):1319-1330. doi: 10.1056/NEJMoa1709118. Epub 2017 Aug 27.

    PubMed 28844192
  • Habib J, Baetz L, Satiani B. Assessment of collateral circulation to the hand prior to radial artery harvest. Vasc Med. 2012 Oct;17(5):352-61. doi: 10.1177/1358863X12451514. Epub 2012 Jul 19.

    PubMed 22814998
  • Mehran R, Rao SV, Bhatt DL, Gibson CM, Caixeta A, Eikelboom J, Kaul S, Wiviott SD, Menon V, Nikolsky E, Serebruany V, Valgimigli M, Vranckx P, Taggart D, Sabik JF, Cutlip DE, Krucoff MW, Ohman EM, Steg PG, White H. Standardized bleeding definitions for cardiovascular clinical trials: a consensus report from the Bleeding Academic Research Consortium. Circulation. 2011 Jun 14;123(23):2736-47. doi: 10.1161/CIRCULATIONAHA.110.009449. No abstract available.

    PubMed 21670242
  • Sabatine MS, Morrow DA, Giugliano RP, Burton PB, Murphy SA, McCabe CH, Gibson CM, Braunwald E. Association of hemoglobin levels with clinical outcomes in acute coronary syndromes. Circulation. 2005 Apr 26;111(16):2042-9. doi: 10.1161/01.CIR.0000162477.70955.5F. Epub 2005 Apr 11.

    PubMed 15824203
  • Rao SV, O'Grady K, Pieper KS, Granger CB, Newby LK, Van de Werf F, Mahaffey KW, Califf RM, Harrington RA. Impact of bleeding severity on clinical outcomes among patients with acute coronary syndromes. Am J Cardiol. 2005 Nov 1;96(9):1200-6. doi: 10.1016/j.amjcard.2005.06.056. Epub 2005 Sep 12.

    PubMed 16253582
  • Schulman S, Kearon C; Subcommittee on Control of Anticoagulation of the Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis. Definition of major bleeding in clinical investigations of antihemostatic medicinal products in non-surgical patients. J Thromb Haemost. 2005 Apr;3(4):692-4. doi: 10.1111/j.1538-7836.2005.01204.x.

    PubMed 15842354

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Rivaroxaban 15 MG Oral Tablet [Xarelto] in people with Radial Artery Occlusion, run by Ottawa Heart Institute Research Corporation at 3 sites in 2 countries.

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 24 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: stopped early, as of the sponsor's last update on 5 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 3 sites in Canada, United States. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Assessment for futility). Results are not available in the source record.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary efficacy outcome - rate of radial artery occlusion (time frame: 30 days). The study lists 2 primary outcomes in all. 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 NCT03630055, which also lists 18 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 5 May 2026.

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