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SPIRIT III Clinical Trial of the XIENCE V® Everolimus Eluting Coronary Stent System (EECSS)

Phase 3
Completed
Conditions
Stents
Coronary Artery Disease
Total Coronary Occlusion
Coronary Artery Restenosis
Stent Thrombosis
Vascular Disease
Myocardial Ischemia
Coronary Artery Stenosis
Interventions
Device: XIENCE V® Everolimus Eluting Coronary Stent
Device: TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent
Registration Number
NCT00180479
Lead Sponsor
Abbott Medical Devices
Brief Summary

This study is divided into 5 arms:

1. Randomized Clinical Trial (RCT): Prospective, randomized, active-controlled, single blind, parallel two-arm multi-center clinical trial in the United States (US) comparing XIENCE V® Everolimus Eluting Coronary Stent System (CSS) (2.5, 3.0, 3.5 mm diameter stents) to the Food and Drug Administration (FDA) approved commercially available active control TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent (TAXUS® EXPRESS2™ PECS) System

2. US 2.25 mm non-randomized arm using 2.25 mm diameter XIENCE V® Everolimus Eluting CSS

3. US 4.0 mm non-randomized arm using 4.0 mm diameter XIENCE V® Everolimus Eluting CSS

4. US 38 mm non-randomized arm using 38 mm in length XIENCE V® Everolimus Eluting CSS

5. Japanese non-randomized arm using XIENCE V® Everolimus Eluting CSS (2.5, 3.0, 3.5, 4.0 mm diameter stents) in Japan

The TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent System is Manufactured by Boston Scientific.

Detailed Description

The purpose of the SPIRIT III clinical trial is to evaluate the safety and efficacy of the XIENCE V® Everolimus Eluting Coronary Stent System (XIENCE V® EECSS). The XIENCE V® EECS (XIENCE V® arm) will be compared to an active control group represented by the FDA approved commercially available Boston Scientific TAXUS® EXPRESS2™ Paclitaxel-Eluting Coronary Stent (TAXUS® EXPRESS2™ PECS) System (TAXUS® arm).

The SPIRIT III clinical trial consists of a randomized clinical trial (RCT) in the US which will enroll approximately 1,002 subjects (2:1 randomization XIENCE V® EECS : TAXUS® EXPRESS2™ PECS) with a maximum of two de novo native coronary artery lesion treatment within vessel sizes \>= 2.5 mm and \<= 3.75 mm.

The SPIRIT III clinical trial also consists of three concurrent US non-randomized arms (2.25 mm diameter stent, 4.0 mm diameter stent and 38 mm length stent arms) and one Japanese non-randomized arm as follows:

1. 105 subjects with a maximum of two de novo native coronary artery lesion within vessel sizes \> 2.25 mm and \< 2.5 mm and lesion length \<= 22 mm will be enrolled concurrently in the US 2.25 mm non-randomized treatment arm

2. 80 subjects with a maximum of two de novo native coronary artery lesion within vessel sizes \> 3.75 mm and \>= 4.25 mm and lesion length \<= 28 mm will be enrolled concurrently in the US 4.0 mm non-randomized treatment arm

3. 105 subjects with a maximum of two de novo native coronary artery lesion within vessel sizes \> 3.0 mm and \< 4.25 mm and lesion length \> 24 mm and \< 32 mm will be enrolled concurrently in the US 38 mm non-randomized treatment arm.

4. 88 Japanese subjects with a maximum of two de novo native coronary artery lesions within vessel sizes \>= 2.5 mm and \<= 4.25 mm and lesion length \<= 28 mm will be enrolled concurrently in the non-randomized Japanese arm.

All subjects in the RCT and the four non-randomized arms will be screened per the protocol required inclusion/exclusion criteria. The data collected will be compared to data from the subjects enrolled into the TAXUS® arm of US RCT.

Subjects enrolled in the US RCT will be sub-grouped based on whether they will have an angiographic and/or an intravascular ultrasound (IVUS) follow-up at 240 days as follows:

Group A: Angiographic and IVUS follow-up at 240 days (N=240) Group B: Angiographic follow-up at 240 days (N=324) Group C: No angiographic or IVUS follow-up (N=438)

All subjects will have clinical follow-up at 30, 180, 240 and 270 days (Data collected through 270 days will be submitted as the primary data set for US and Japanese market approval), and 1, 2, 3, 4, and 5 years (for annual reports).

All subjects enrolled into three US non-randomized arms (N=105 for 2.25 mm arm, N=80 for 4.0 mm arm and N=105 for 38 mm stent arm) will have clinical follow-up at 30, 180, 240, and 270 days, and angiographic follow-up at 240 days. No IVUS follow-up is required for subjects enrolled in these arms.

All subjects enrolled into the Japanese non-randomized arm (N=88) will have clinical follow-up at 30, 180, 240, and 270 days, and angiographic and IVUS follow-up at 240 days.

All subjects who receive a bailout stent will be assigned to Group A follow-up subgroup (angiographic and IVUS follow-up at 240 days after the index procedure), regardless of their primary assignment at randomization. At sites without IVUS capability, subjects receiving bailout stent will be assigned to Group B follow-up subgroup (angiographic follow-up at 240 days after the index procedure). Angiographic follow-up is required for all bailout subjects at 240 days.

Data from the US RCT will be submitted to the FDA as the primary data set for product approval for RVD \>= 2.5 mm and \<= 3.75 mm (2.5 mm, 3.0 mm and 3.5 mm stents). Combined data of the US trial/Japanese non-randomized arm will be submitted to the Japanese Ministry of Health, Labor and Welfare (MHLW) for Japanese approval for RVD\>=2.5 mm and \<= 4.25 mm (2.5 mm, 3.0 mm 3.5 mm and 4.0 mm stents). Data from the Japanese non-randomized arm will be submitted to the FDA as additional safety data. Data from the US non-randomized arms of the trial will be the primary data sets for approval for 2.25 mm diameter stent (RVD \> 2.25 mm and \< 2.5 mm), 4.0 mm diameter stent (RVD \> 3.75 mm and \<= 4.25 mm) and 38 mm length stent (RVD \> 3.0 mm and \<= 4.25 mm and lesion length \> 24 mm and \<= 32 mm), respectively in the US.

A pharmacokinetic substudy will be carried out in a minimum of 5 pre-determined sites in the US and a minimum of 5 pre-determined sites in Japan. In the US, the pharmacokinetics (PK) of everolimus, as delivered by the XIENCE V® EECS will be analyzed in a subset of 15 subjects (minimum) with single vessel/lesion treatment, and up to 20 subjects with dual vessel/lesion treatment, respectively. In Japan, a minimum of 10 subjects with single vessel/lesion treatment and up to 20 subjects with dual vessel/lesion treatment will have a PK measurements performed. These subsets will include subjects receiving overlapping stents.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
1002
Inclusion Criteria
  • Target lesion(s) must be located in a native epicardial vessel with visually estimated diameter between >= 2.25 mm and <= 4.25 mm and a lesion length <= 32 mm
  • The target lesion(s) must be in a major artery or branch with a visually estimated stenosis of >= 50% and < 100% with a thrombolysis in myocardial infarction (TIMI) flow of >= 1
  • Non-study, percutaneous intervention for lesions in a non-target vessel is allowed if done >= 90 days prior to the index procedure (subjects who received brachytherapy will be excluded from the trial)
Exclusion Criteria
  • Located within an arterial or saphenous vein graft or distal to a diseased (vessel irregularity per angiogram and > 20% stenosed lesion by visual estimation) arterial or saphenous vein graft
  • Lesion involving a bifurcation >= 2 mm in diameter or ostial lesion > 50% stenosed by visual estimation or side branch requiring predilatation
  • Located in a major epicardial vessel that has been previously treated with brachytherapy
  • Located in a major epicardial vessel that has been previously treated with percutaneous intervention < 9 months prior to index procedure
  • Total occlusion (TIMI flow 0), prior to wire passing
  • The target vessel contains thrombus
  • Another significant lesion (> 40% diameter stenosis [DS]) is located in the same epicardial vessel as the target lesion

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
1XIENCE V® Everolimus Eluting Coronary StentXIENCE V® Everolimus Eluting Coronary Stent System
2TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary StentTAXUS® EXPRESS2™Paclitaxel Eluting Coronary Stent System
Primary Outcome Measures
NameTimeMethod
Primary Endpoint: In-segment Late Loss (LL)240 days

In-segment minimal lumen diameter (MLD) post-procedure minus (-) in segment MLD at 240 day follow-up and 5 mm proximal and 5mm distal to the stent equals Late Loss. MLD defined: The average of two orthogonal views (when possible) of the narrowest point within the area of assessment.

Secondary Outcome Measures
NameTimeMethod
Major Secondary Endpoint: Ischemia Driven Target Vessel Failure (ID-TVF)270 days

The composite endpoint comprised of:

* Cardiac death (death in which a cardiac cause cannot be excluded)

* Myocardial infarction (MI, classified as Q-wave and non-Q wave)

* Ischemia-driven target lesion revascularization (TLR) by CABG or PCI

* Ischemia-driven target vessel revascularization (TVR) by CABG or PCI

Target Vessel Failure (TVF)5 years

The composite endpoint comprised of:

* Cardiac death (death in which a cardiac cause cannot be excluded)

* Myocardial infarction (MI, classified as Q-wave and non-Q wave)

* Ischemia-driven target lesion revascularization (TLR) by CABG or PCI

* Ischemia-driven target vessel revascularization (TVR) by CABG or PCI

Ischemia Driven Target Lesion Revascularization (ID-TLR)5 years

Revascularization @ target lesion associated w/ any of following:

(+) functional ischemia study Ischemic symptoms \& angiographic diameter stenosis ≥50% by core lab quantitative coronary angiography (QCA) Revascularization of a target lesion w/ angiographic diameter stenosis ≥70% by core laboratory QCA without angina or (+) functional study

Ischemia Driven Target Vessel Revascularization (ID-TVR)5 years

Revascularization at the target vessel associated with any of the following

* Positive functional ischemia study

* Ischemic symptoms and angiographic diameter stenosis ≥ 50% by core laboratory QCA

* Revascularization of a target vessel with angiographic diameter stenosis ≥ 70% by core laboratory QCA without angina or positive functional study

Derived from Non-Hierarchical Subject Counts of Adverse Events

Ischemia Driven Major Adverse Cardiac Event (MACE)5 years

The composite endpoint comprised of:

* Cardiac death

* Myocardial infarction (MI, classified as Q-wave and non-Q wave)

* Ischemia-driven target lesion revascularization (TLR) by CABG or PCI

Ischemia Driven Major Adverse Cardiac Event(MACE)2 years

The composite endpoint comprised of:

* Cardiac death

* Myocardial infarction (MI, classified as Q-wave and non-Q wave)

* Ischemia-driven target lesion revascularization (TLR) by CABG or PCI

In-stent % Angiographic Binary Restenosis (% ABR) Rateat 240 days

Percent of subjects with a follow-up in-stent percent diameter stenosis of ≥ 50% per quantitative coronary angiography (QCA)

In-segment % Angiographic Binary Restenosis (% ABR) Rate240 days

Percent of subjects with a follow-up in-segment percent diameter stenosis of ≥ 50% per QCA

Persisting Incomplete Stent Apposition, Late-acquired Incomplete Stent Apposition, Aneurysm, Thrombosis, and Persisting Dissectionat 240 days

Incomplete Apposition (Persisting \& Late acquired): Failure to completely appose vessel wall w/ ≥1 strut separated from vessel wall w/ blood behind strut per ultrasound. Aneurysm: Abnormal vessel expansion ≥ 1.5 of reference vessel diameter. Thrombus: Protocol \& ARC definition.

Persisting dissection @ follow-up, present post-procedure.

Acute Success: Clinical DeviceIn-hospital

Successful delivery and deployment of 1st implanted study stent/s @ the intended target lesion and successful withdrawal of the stent delivery system with final residual stenosis \< 50%.

Acute Success: Clinical ProcedureIn-hospital

Successful delivery and deployment of study stent/s @ the intended target lesion and successful withdrawal of the stent delivery system with final residual stenosis \< 50%.

Proximal Late Lossat 240 days

Proximal Minimum Lumen Diameter (MLD) post-procedure minus proximal MLD at follow-up (proximal defined as within 5 mm of healthy tissue proximal to stent placement)

Distal Late Loss240 days

Distal MLD post-procedure minus distal MLD at follow-up (distal defined as within 5 mm of healthy tissue distal to stent placement)

In-stent Late Lossat 240 days

In-stent MLD post-procedure minus in-stent MLD at follow-up (in-stent defined as within the margins of the stent)

% Volume Obstruction (% VO)at 240 days

Defined as stent intimal hyperplasia and calculated as 100\*(Stent Volume - Lumen Volume)/Stent Volume by IVUS.

In-stent % Diameter Stenosis (% DS)at 240 days

In-stent: Within the margins of the stent, the value calculated as 100 \* (1 - in-stent MLD/RVD) using the mean values from two orthogonal views (when possible) by QCA.

In-segment % Diameter Stenosis (% DS)240 days

Within the margins of the stent, 5 mm proximal and 5 mm distal to the stent, the value calculated as 100 \* (1 - in-segment MLD/RVD) using the mean values from two orthogonal views (when possible) by QCA.

Trial Locations

Locations (64)

North Mississippi Medical Center

🇺🇸

Tupelo, Mississippi, United States

Johns Hopkins Hospital

🇺🇸

Baltimore, Maryland, United States

St. Patrick Hospital

🇺🇸

Missoula, Montana, United States

Nebraska Heart Hospital

🇺🇸

Lincoln, Nebraska, United States

St. Joseph's Hospital Health Center

🇺🇸

Syracuse, New York, United States

Fletcher Allen Health Care

🇺🇸

Burlington, Vermont, United States

Beth Israel Deaconess Medical Center

🇺🇸

Boston, Massachusetts, United States

Swedish Medical Center

🇺🇸

Seattle, Washington, United States

Baptist Hospital of Miami

🇺🇸

Miami, Florida, United States

Good Samaritan Hospital

🇺🇸

Los Angeles, California, United States

Emory Crawford Long Hospital

🇺🇸

Atlanta, Georgia, United States

Riverside Methodist Hospital

🇺🇸

Columbus, Ohio, United States

The Heart Center of IN, LLC

🇺🇸

Indianapolis, Indiana, United States

Spectrum Health Hospital

🇺🇸

Grand Rapids, Michigan, United States

Long Island Jewish Medical Center

🇺🇸

New Hyde Park, New York, United States

EMH Regional Medical Center

🇺🇸

Elyria, Ohio, United States

Barnes Jewish Hospital

🇺🇸

St. Louis, Missouri, United States

Brigham & Women's Hospital

🇺🇸

Boston, Massachusetts, United States

Jewish Hospital

🇺🇸

Louisville, Kentucky, United States

Wake Forest University Baptist Medical Center

🇺🇸

Winston-Salem, North Carolina, United States

Sacred Heart Medical Center

🇺🇸

Eugene, Oregon, United States

Wake Medical Center

🇺🇸

Raleigh, North Carolina, United States

Saint Joseph's Hospital of Atlanta

🇺🇸

Atlanta, Georgia, United States

Rush University Medical Center

🇺🇸

Chicago, Illinois, United States

Allegheny General Hospital

🇺🇸

Pittsburgh, Pennsylvania, United States

St. John's Hospital

🇺🇸

Springfield, Illinois, United States

Presbyterian Hospital

🇺🇸

Charlotte, North Carolina, United States

Borgess Medical Center

🇺🇸

Kalamazoo, Michigan, United States

Piedmont Hospital

🇺🇸

Atlanta, Georgia, United States

Northern Michigan Hospital

🇺🇸

Petoskey, Michigan, United States

Columbia University Medical Center

🇺🇸

New York, New York, United States

St. Luke's Hospital

🇺🇸

Kansas City, Missouri, United States

The Valley Hospital

🇺🇸

Ridgewood, New Jersey, United States

Elmhurst Memorial Hospital

🇺🇸

Elmhurst, Illinois, United States

St. Joseph Medical Center

🇺🇸

Towson, Maryland, United States

Medical City Dallas Hospital

🇺🇸

Dallas, Texas, United States

Pinnacle Health @ Harrisburg Hospital

🇺🇸

Harrisburg, Pennsylvania, United States

Baptist Health System - Montclair

🇺🇸

Birmingham, Alabama, United States

Arizona Heart Hospital

🇺🇸

Phoenix, Arizona, United States

The University of Oklahoma Health Sciences Center

🇺🇸

Oklahoma City, Oklahoma, United States

TexSan Heart Hospital

🇺🇸

San Antonio, Texas, United States

Duke University Medical Center

🇺🇸

Durham, North Carolina, United States

Providence St. Vincent Medical Center

🇺🇸

Portland, Oregon, United States

St John Hospital & Medical Center

🇺🇸

Detroit, Michigan, United States

Abbott Northwestern Hospital

🇺🇸

Minneapolis, Minnesota, United States

The Christ Hospital

🇺🇸

Cincinnati, Ohio, United States

St. Luke's Medical Center

🇺🇸

Milwaukee, Wisconsin, United States

Integris Baptist Medical, Inc.

🇺🇸

Oklahoma City, Oklahoma, United States

Baptist Medical Center Princeton

🇺🇸

Birmingham, Alabama, United States

Washington Hospital Center

🇺🇸

Washington, District of Columbia, United States

Mercy General Hospital

🇺🇸

Sacramento, California, United States

Scripps Memorial Hospital

🇺🇸

La Jolla, California, United States

Alta Bates Summit Medical Center

🇺🇸

Oakland, California, United States

Holy Cross Medical Center (prev. North Ridge MC)

🇺🇸

Fort Lauderdale, Florida, United States

Poudre Valley Hospital

🇺🇸

Fort Collins, Colorado, United States

Dartmouth-Hitchcock Medical Center

🇺🇸

Lebanon, New Hampshire, United States

Hackensack Medical Center

🇺🇸

Hackensack, New Jersey, United States

Ochsner Clinic Foundation

🇺🇸

New Orleans, Louisiana, United States

Washington Adventist Hospital

🇺🇸

Takoma Park, Maryland, United States

Medical University of South Carolina

🇺🇸

Charleston, South Carolina, United States

The Miriam Hospital

🇺🇸

Providence, Rhode Island, United States

Heart Hospital of Austin

🇺🇸

Austin, Texas, United States

Methodist Hospital

🇺🇸

Houston, Texas, United States

Rhode Island Hospital

🇺🇸

Providence, Rhode Island, United States

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