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Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: CTO Clear all
Terminated No phase listed Observational

Cardiac Cath Lab Staff Radiation Exposure

NCT03959072
View directory record Official record
Conditions
Coronary Artery Disease, Chronic Total Occlusion of Coronary Artery, Percutaneous Coronary Intervention
Interventions
Robotic CTO PCI, Conventional (Manual) CTO PCI
Device · Procedure
Lead sponsor
Siemens Healthineers Endovascular Robotics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
74 participants
Timeline
2019 – 2021
U.S. locations
3
States / cities
Kansas City, Missouri • York, Pennsylvania • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 1, 2023 · Synced Sep 2, 2026, 2:15 PM EDT
Terminated Phase 2 Interventional Results available

The Lumen Study: Comparing Devices for Patients With Symptomatic Femoro-popliteal Chronic Total Occlusion (CTO)

NCT02145299
View directory record Official record
Conditions
Symptomatic Femoro-popliteal Chronic Total Occlusion
Interventions
TruePath CTO Device, CROSSER CTO Device
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 100 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 3, 2016 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Phase 4 Interventional

AngiographiC Evaluation of the Everolimus-Eluting Stent in Chronic Total Occlusions - the ACE-CTO Study

NCT01012869
View directory record Official record
Conditions
Coronary Occlusions
Interventions
everolimus-eluting stent
Device
Lead sponsor
North Texas Veterans Healthcare System
Federal
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2013 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Phase 3 Interventional

Peripheral Facilitated Antegrade Steering Technique in Chronic Total Occlusions

NCT01246505
View directory record Official record
Conditions
Chronic Total Occlusion
Interventions
CTO Crossing and Percutaneous transluminal angioplasty
Device
Lead sponsor
BridgePoint Medical
Industry
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
10
States / cities
Phoenix, Arizona • Los Angeles, California • Torrance, California + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2012 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

EXPERT CTO: Evaluation of the XIENCE PRIME™ LL and XIENCE Nano™ Everolimus Eluting Coronary Stent Coronary Stents, Performance, and Technique in Chronic Total Occlusions

NCT01435031
View directory record Official record
Conditions
Coronary Artery Disease (CAD), Chronic Total Occlusion (CTO)
Interventions
CTO Treatment Device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Santa Clara, California
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Sep 2, 2026, 2:15 PM EDT
Not listed Phase 1 Interventional

Safety and Tolerability of Carboxyamidotriazole Orotate (CTO) in Solid Tumors or With Temodar® in Glioblastoma or Other Recurrent Malignant Gliomas or in Combination With Temodar® and Radiation Therapy for Patients With Newly Diagnosed Glioblastoma and Malignant Gliomas

NCT01107522
View directory record Official record
Conditions
Solid Tumors, Glioblastoma, Recurrent Malignant Gliomas
Interventions
CTO, CTO and Temodar®, CTO, Temodar®, Radiation therapy
Drug
Lead sponsor
Tactical Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2026
U.S. locations
4
States / cities
New York, New York • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 2, 2026, 2:15 PM EDT
Not listed Not applicable Interventional

Cohort B of the Pivotal Study to Evaluate the Safety and Effectiveness of the NovaCross™ Micro-catheter

NCT03719014
View directory record Official record
Conditions
Coronary Occlusion
Interventions
NovaCross
Device
Lead sponsor
Nitiloop Ltd.
Industry
Eligibility
25 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
3
States / cities
Little Rock, Arkansas • New York, New York • York, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 5, 2018 · Synced Sep 2, 2026, 2:15 PM EDT
Enrolling by invitation Not applicable Interventional

Acolyte CTO-PCI Study: Imaging and Catheter System to Treat Patients With Coronary Chronic Total Occlusion, Who Have Persistent Symptoms Following Medical Therapy and Are Undergoing Percutaneous Coronary Interventional Procedures

NCT06795763
View directory record Official record
Conditions
Coronary Chronic Total Occlusions, Ischemic Heart Disease, Ischemic Heart Disease (IHD), Ischemic Heart Disease Chronic
Interventions
CTO-PCI Procedure with Acolyte Catheter System
Device
Lead sponsor
Elumn8 Medical
Industry
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
5
States / cities
Atlanta, Georgia • Minneapolis, Minnesota • Roslyn, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Sep 2, 2026, 2:15 PM EDT
Terminated Phase 1 Interventional

Ph 1/2 CTO With Lomustine for Bevacizumab-Naive Recurrent Glioma

NCT01989052
View directory record Official record
Conditions
Malignant Glioma (WHO Grade III or IV)
Interventions
CTO, Lomustine
Drug
Lead sponsor
Annick Desjardins
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 3, 2016 · Synced Sep 2, 2026, 2:15 PM EDT
Completed No phase listed Observational

Crosser Enters The Right Arterial Lumen

NCT01205386
View directory record Official record
Conditions
Chronic Total Occlusion of Artery of the Extremities
Interventions
1. CROSSER System
Device
Lead sponsor
C. R. Bard
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
8
States / cities
Washington D.C., District of Columbia • Des Moines, Iowa • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2013 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional

SoundBite™ Crossing System Pivotal Peripheral CTO Crossing Study

NCT03266835
View directory record Official record
Conditions
Chronic Total Occlusion of Arteries of the Extremities
Interventions
SoundBite™ Crossing System - Peripheral
Device
Lead sponsor
SoundBite Medical Solutions, Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional

Investigating the Utility of Remote Index of Microvascular Resistance in Patients With Chronic Total Occlusion

NCT04226326
View directory record Official record
Conditions
Chronic Total Occlusion
Interventions
Directly measure microvascular function using direct coronary flow measurements
Other
Lead sponsor
University of Chicago
Other
Eligibility
21 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 23, 2023 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Efficacy of Autologous, Intracoronary Stem Cell Injections in Total Coronary Artery Occlusions

NCT00365326
View directory record Official record
Conditions
Coronary Occlusion
Interventions
Catheter-based intracoronary injection
Biological
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

The Asahi Intecc PTCA Chronic Total Occlusion Study

NCT02379923
View directory record Official record
Conditions
Coronary Artery Disease, Coronary Artery Chronic Total Occlusion
Interventions
Crossing of Coronary Artery CTO
Device
Lead sponsor
Asahi Intecc USA Inc
Industry
Eligibility
18 Years and older
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
12
States / cities
Phoenix, Arizona • Loveland, Colorado • Atlanta, Georgia + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2018 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

Chronic Total Occlusion Percutaneous Coronary Intervention Study

NCT03988166
View directory record Official record
Conditions
Chronic Total Occlusion, Ischemic Heart Disease, Chronic Total Occlusion of Coronary Artery
Interventions
Chronic Total Occlusion Revascularization, GuideLiner® V3 catheter, TrapLiner® catheter, Turnpike® catheter
Procedure · Device
Lead sponsor
Vascular Solutions LLC
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
13
States / cities
Torrance, California • Atlanta, Georgia • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced Sep 2, 2026, 2:15 PM EDT
Completed No phase listed Observational

Outcomes, Patient Health Status, and Efficiency in Chronic Total Occlusion

NCT02026466
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Not listed
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
11
States / cities
Mesa, Arizona • Phoenix, Arizona • Torrance, California + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2021 · Synced Sep 2, 2026, 2:15 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

REduction of Contrast Via DyeVert Used in CTO Procedures

NCT03118544
View directory record Official record
Conditions
Chronic Total Occlusion of Coronary Artery
Interventions
DyeVert System
Device
Lead sponsor
Minneapolis Heart Institute Foundation
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
3
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 16, 2018 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Phase 1 Interventional

Imaging of Totally Blocked Arteries

NCT00459446
View directory record Official record
Conditions
Atherosclerosis, Peripheral Artery Disease, Intermittent Claudication, Chronic Total Aterial Occlusion
Interventions
MS-325 Injection (Gadofosveset Trisodium)
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 2, 2026, 2:15 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Ergonomics in the Cardiac Catheterization Laboratory

NCT06506968
View directory record Official record
Conditions
Ergonomics, Orthopedic Injury, Wellness
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
21 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 17, 2024 · Synced Sep 2, 2026, 2:15 PM EDT
Active, not recruiting Not applicable Interventional

Invest-CTO PCI Trial

NCT04774913
View directory record Official record
Conditions
Chronic Total Occlusion of Coronary Artery, Angina Pectoris, Quality of Life, PROM
Interventions
Chronic total occlusion(CTO) percutaneous coronary intervention (PCI)
Procedure
Lead sponsor
Haukeland University Hospital
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

Chronic Total Occlusion Crossing With the Wildcat Catheter

NCT01174784
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Chronic TOtAl OcclusioN CrossiNg with thE WildCat CatheTer
Device
Lead sponsor
Avinger, Inc.
Industry
Eligibility
19 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
15
States / cities
Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2020 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

AngioSafe Peripheral CTO Crossing System Study (RESTOR-1 Study)

NCT04663867
View directory record Official record
Conditions
Peripheral Artery Occlusion, Peripheral Arterial Disease
Interventions
AngioSafe Peripheral CTO Crossing System
Device
Lead sponsor
AngioSafe, Inc.
Industry
Eligibility
22 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
18
States / cities
Chandler, Arizona • St. Helena, California • Darien, Connecticut + 15 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional

Sapphire 3 CTO Study

NCT06358508
View directory record Official record
Conditions
Coronary Artery Disease, Coronary Disease, Myocardial Ischemia, Heart Diseases, Arteriosclerosis, Cardiovascular Diseases, Chronic Total Occlusion, Chronic Total Occlusion of Coronary Artery
Interventions
Sapphire 3 Coronary Dilatation Catheter
Device
Lead sponsor
OrbusNeich
Industry
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
12
States / cities
Stanford, California • Torrance, California • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 2, 2026, 2:15 PM EDT
Completed Not applicable Interventional Results available

ReFlow Medical Wingman Catheter Wing-IT Clinical Trial

NCT03403426
View directory record Official record
Conditions
Chronic Total Occlusion of Artery of the Extremities
Interventions
Wingman Crossing Catheter
Device
Lead sponsor
ReFlow Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
St. Helena, California
Source: ClinicalTrials.gov public record
Updated Jan 6, 2021 · Synced Sep 2, 2026, 2:15 PM EDT