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Randomized Study Comparing Endeavor With Cypher Stents (PROTECT)

PROTECT Trial: Patient Related OuTcomes With Endeavor Versus Cypher Stenting Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00476957
Acronym
PROTECT
Enrollment
8709
Registered
2007-05-22
Start date
2007-06-30
Completion date
2014-07-31
Last updated
2014-11-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ischemic Heart Disease

Keywords

Drug Eluting Stents, Interventional Cardiology

Brief summary

The PROTECT TRIAL is a randomized stent trial with 8800 patients in approximately 200 hospitals, which is designed to evaluate whether the Endeavor stent PROTECTS against late stent thrombosis resulting in less deaths and myocardial infarctions. Study Stents: Medtronic Endeavor® Zotarolimus Eluting Coronary Stent System or next generation model Cordis Cypher® Sirolimus-eluting Coronary Stent, Cordis Cypher Select® Sirolimus-eluting Coronary Stent or next generation model Primary Objective: To compare overall stent thrombosis rate of the Endeavor® Zotarolimus Eluting Coronary Stent System versus the Cypher® Sirolimus-eluting Coronary Stent in a patient population requiring stent implantation Secondary Objective: To compare the composite endpoint of total death or cardiac death combined with the number of patients with all non-fatal myocardial infarctions as well as the number of patients with large non-fatal myocardial infarctions for Endeavor® Zotarolimus Eluting Coronary Stent System versus the Cypher® Sirolimus-eluting Coronary Stent in a patient population requiring stent implantation. To assess the safety and efficacy in patient subgroups with specific demographics, clinical indications and/or vessel- or lesion characteristics.

Interventions

DEVICEStent

Stent implantation

Sponsors

Medtronic Cardiac Rhythm and Heart Failure
CollaboratorINDUSTRY
Medtronic Vascular
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patient is \> 18 years of age (or minimum age as required by local regulations). 2. The patient has consented to participate and has authorized the collection and release of his medical information by signing the Patient Informed Consent Form. 3. All lesions requiring interventions (target lesions - one to a maximum of four) in one or more native coronary arteries are amendable for implantation of one or more Endeavor® Zotarolimus Eluting Coronary Stent System or Cypher® Sirolimus-eluting Coronary Stent\*. 4. Patient indication, lesion length and vessel diameter of the target lesion(s) are according to the 'Indications for Use' as mentioned in the 'Instructions for Use' that comes with every Endeavor® Zotarolimus Eluting Coronary Stent System and Cypher® Sirolimus-eluting Coronary Stent. Patients should qualify for both systems before randomization\*. 5. The patient is willing and able to cooperate with study procedures and required follow up visits.

Exclusion criteria

1. Women with known pregnancy or who are lactating. 2. Planned elective surgery necessitating discontinuation of clopidogrel within the regular planned period of clopidogrel administration. 3. Patients expected not to be compliant with the anti-platelet and/or anticoagulation therapy regimen. 4. Previous brachy-therapy. 5. Previous implantation of a drug eluting stent. 6. Previous implantation of a bare metal stent in the preceding year. 7. Simultaneous or planned intervention other non cardiac vessels including but not limited to renal artery or carotid artery. 8. Current medical condition with a life expectancy of less than 3 years. 9. Manifest acute severe heart failure (Killip class III-IV). 10. The patient is currently, and during the first 3 years of the PROTECT trial, participating in another investigational device or drug study that clinically interferes with the PROTECT-study endpoints; or requires coronary angiography or other coronary artery imaging procedures. The patient may only be enrolled in the PROTECT-study once. 11. Patients with medical conditions that preclude the follow-up as defined in the protocol or that otherwise limits participation in this study. 12. Patients on warfarin or similar anti-coagulant therapy. 13. Patients with hypersensitivity or allergies to one of the drugs or components indicated in the Instructions for Use of either stents. 14. Patients who are judged to have a lesion that prevents complete inflation of an angioplasty balloon. 15. Patients in whom anti-platelet and/or anticoagulation therapy is contraindicated. 16. Transplant patients.

Design outcomes

Primary

MeasureTime frameDescription
To Compare Overall Definite or Probable Stent Thrombosis Rate of the Endeavor® Zotarolimus Eluting Coronary Stent System Versus the Cypher® Sirolimus-eluting Coronary Stent in a Patient Population Requiring Stent Implantation3 yearsDefinite or probable stent thrombosis rate.

Secondary

MeasureTime frameDescription
Composites of (Cardiac) Death and (Large) Non-fatal Myocardial Infarctions3 yearsTotal death and large non-fatal myocardial infarctions Total death and non-fatal myocardial infarctions Cardiac death and large non-fatal MI Cardiac death and non-fatal myocardial infarctions

Countries

Netherlands

Participant flow

Recruitment details

8709 patients were randomized from May 2007 until December 2008 in 196 participating hospitals in 36 countries across five continents.

Pre-assignment details

80 patients were excluded because there was no validly signed consent available during monitoring and 2 patients retracted their consent before the procedure, resulting in a total of 8709 patients randomised.

Participants by arm

ArmCount
E-ZES
Medtronic Endeavor® Zotarolimus Eluting Coronary Stent System Stent : Stent implantation
4,357
C-SES
Cordis Cypher® Sirolimus-eluting Coronary Stent Stent : Stent implantation
4,352
Total8,709

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up176193

Baseline characteristics

CharacteristicE-ZESC-SESTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1929 Participants1884 Participants3813 Participants
Age, Categorical
Between 18 and 65 years
2428 Participants2468 Participants4896 Participants
Age, Continuous62.3 years
STANDARD_DEVIATION 10.6
62.1 years
STANDARD_DEVIATION 10.7
62.2 years
STANDARD_DEVIATION 10.6
Region of Enrollment
Australia
207 participants207 participants414 participants
Region of Enrollment
Europe
3180 participants3179 participants6359 participants
Region of Enrollment
Middle East
164 participants162 participants326 participants
Region of Enrollment
New Zealand
43 participants42 participants85 participants
Region of Enrollment
North America
115 participants115 participants230 participants
Region of Enrollment
South America
25 participants25 participants50 participants
Region of Enrollment
South Asia
623 participants622 participants1245 participants
Sex: Female, Male
Female
1017 Participants1044 Participants2061 Participants
Sex: Female, Male
Male
3340 Participants3308 Participants6648 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
201 / 4,357184 / 4,352
serious
Total, serious adverse events
579 / 4,357507 / 4,352

Outcome results

Primary

To Compare Overall Definite or Probable Stent Thrombosis Rate of the Endeavor® Zotarolimus Eluting Coronary Stent System Versus the Cypher® Sirolimus-eluting Coronary Stent in a Patient Population Requiring Stent Implantation

Definite or probable stent thrombosis rate.

Time frame: 3 years

ArmMeasureValue (NUMBER)
E-ZESTo Compare Overall Definite or Probable Stent Thrombosis Rate of the Endeavor® Zotarolimus Eluting Coronary Stent System Versus the Cypher® Sirolimus-eluting Coronary Stent in a Patient Population Requiring Stent Implantation61 participants
C-SESTo Compare Overall Definite or Probable Stent Thrombosis Rate of the Endeavor® Zotarolimus Eluting Coronary Stent System Versus the Cypher® Sirolimus-eluting Coronary Stent in a Patient Population Requiring Stent Implantation75 participants
Secondary

Composites of (Cardiac) Death and (Large) Non-fatal Myocardial Infarctions

Total death and large non-fatal myocardial infarctions Total death and non-fatal myocardial infarctions Cardiac death and large non-fatal MI Cardiac death and non-fatal myocardial infarctions

Time frame: 3 years

ArmMeasureGroupValue (NUMBER)
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsCardiac death and large non-fatal MI157 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTarget lesion revascularization249 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTotal death and non-fatal myocardial infarctions331 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsStroke77 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsCardiac death and non-fatal MI265 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsBleeding events201 participants
E-ZESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTotal death and large non-fatal myocardial infarct225 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsBleeding events184 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTotal death and large non-fatal myocardial infarct255 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTotal death and non-fatal myocardial infarctions360 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsCardiac death and large non-fatal MI174 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsCardiac death and non-fatal MI282 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsTarget lesion revascularization156 participants
C-SESComposites of (Cardiac) Death and (Large) Non-fatal Myocardial InfarctionsStroke72 participants

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026