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AzTrials

Coronary Artery DiseasePhase 3NCT00258596

Sirolimus-Eluting Stents for Chronic Total Coronary Occlusions

A Phase 3 study testing sirolimus-eluting stent in people with Coronary Artery Disease and Coronary Disease, run by R&D Cardiologie at 2 sites in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary intracoronary stent placement after successfully crossing chronic total occlusions (CTO) decreases the high restenosis rate at long-term follow-up compared with conventional balloon angioplasty. Several studies have shown the efficacy of sirolimus-eluting stents in selected groups of patients. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
sirolimus-eluting stent
Type of treatment
Medical device
How many people
200 participants
Where
2 sitesNetherlands
Study dates
Jan 2003to Sep 2006
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

  • Estimated duration of the chronic total coronary occlusion of at least two weeks
  • Evidence of ischemia related to the target vessel (signs of ischemia during an abnormal exercise test, defined as ST depression of at least 1.0 mm that is horizontal or down-sloping or up-sloping ST depression of at least 2.0 mm or signs of ischemia found during nuclear imaging with exercise, dobutamine or adenosine).

Who cannot join

  • The lesion could not be crossed
  • The use of heparin, aspirin and clopidogrel was prohibited
  • Severe renal failure (creatinine>250µmol/L)
  • Patients were unwilling or unable to complete follow-up.

Trial locations and contacts

2 sites in 1 country.

Netherlands2 sites

  • Onze Lieve Vrouwe Gasthuis

    Amsterdam, 1090HM

  • St Antonius Hospital

    Nieuwegein, 3435CM

Other trials in Netherlands

About this study

Official title: Sirolimus-Eluting Stents for Chronic Total Coronary Occlusions: A Randomized Comparison of Bare Metal Stent Implantation With Sirolimus-Eluting Stent Implantation for the Treatment of Chronic Total Coronary Occlusions (PRISON II)

Primary intracoronary stent placement after successfully crossing chronic total occlusions (CTO) decreases the high restenosis rate at long-term follow-up compared with conventional balloon angioplasty. Several studies have shown the efficacy of sirolimus-eluting stents in selected groups of patients. Whether sirolimus-eluting stents are superior to bare metal stents in CTO is unknown. In this prospective randomized trial, bare metal stent implantation will be compared with sirolimus-eluting stent implantation for the treatment of chronic total coronary occlusions. A total of 200 patients will be followed up for 6, 12, and 24 months with angiographic follow-up at 6 months. Quantitative coronary analysis will be performed by an independent core laboratory. The primary end point is the binary angiographic restenosis and reocclusion rate at 6 month follow-up.

Read the detailed description

Since data from the 2 landmark studies, the BENESTENT and STRESS studies, showed that coronary stenting significantly decreases restenosis as compared with conventional balloon angioplasty, this treatment modality has shown to be superior in an increasing number of indications. Percutaneous coronary intervention of chronic total occlusions (CTO), however, is still limited by high restenosis rates. Although coronary stenting using bare metal stents significantly decreases restenosis in CTO, restenosis rates still reach 32% to 55%.

In 200 patients with CTO randomized in the PRISON I study, we demonstrated a restenosis rate of 22% after bare metal stent implantation as compared with 33% after conventional balloon angioplasty. During the past few years, sirolimus (rapamycin), a cytostatic macrocyclic lactone with anti-inflammatory and antiproliferative properties, delivered from a polymer-encapsulated stent was shown to almost eliminate the risk of restenosis in selected groups of patients.

In this prospective, randomized, single-blind trial we enrolled 200 patients with chronic total occlusions: 100 were randomly assigned to receive bare metal BxVelocity™ stents, and 100 to receive sirolimus-eluting Cypher™ stents. The primary endpoint was angiographic binary restenosis rate at six months follow-up. Secondary endpoints were a composite of major adverse cardiac events, target vessel failure, in-stent and in-segment minimal lumen diameter, percentage diameter stenosis, and late luminal loss at six months follow-up. Clinical long-term follow-up will performed up till 24 months

Being tested
sirolimus-eluting stent
Keywords
drug-eluting stent, chronic total occlusion, sirolimus-eluting stent, zotarolimus-eluting stent, QCA
Medical subject headings
Coronary Artery Disease, Coronary Disease, Coronary Stenosis

What participants receive

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

  • sirolimus-eluting stentDevice

What is being measured

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

  1. The binary restenosis rate (defined as restenosis >50% on follow-up angiography) at six-month angiography

Secondary outcomes (5)

  1. A composite of: Major adverse cardiac events (death, myocardial infarction, and ischemia driven target lesion revascularization)

  2. Target vessel failure (defined as a composite of death from cardiac causes, myocardial infarction, and ischemia-driven target-vessel revascularization) at 6 month

  3. In-stent and in-segment minimal lumen diameter

  4. Percentage in-stent and in-segment diameter stenosis

  5. In-stent and in-segment late luminal loss at six months follow-up

Timeline

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

  1. First posted24 Nov 2005 (estimated)
  2. Study startJan 2003
  3. Study completionSep 2006

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Enrolment
200 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00258596
Sponsor's protocol ID
RDC-2002-01-PRISON II
Status last verified
Jan 2007
First submitted
23 Nov 2005
Last updated
6 Mar 2007
Results posted
No

Publications

  • Rahel BM, Suttorp MJ, Laarman GJ, Kiemeneij F, Bal ET, Rensing BJ, Ernst SM, ten Berg JM, Kelder JC, Plokker HW. Primary stenting of occluded native coronary arteries: final results of the Primary Stenting of Occluded Native Coronary Arteries (PRISON) study. Am Heart J. 2004 May;147(5):e22. doi: 10.1016/j.ahj.2003.11.023.

    PubMed 15131557

  • Suttorp MJ, Mast EG, Plokker HW, Kelder JC, Ernst SM, Bal ET. Primary coronary stenting after successful balloon angioplasty of chronic total occlusions: a single-center experience. Am Heart J. 1998 Feb;135(2 Pt 1):318-22. doi: 10.1016/s0002-8703(98)70099-7.

    PubMed 9489982

  • Serruys PW, de Jaegere P, Kiemeneij F, Macaya C, Rutsch W, Heyndrickx G, Emanuelsson H, Marco J, Legrand V, Materne P, et al. A comparison of balloon-expandable-stent implantation with balloon angioplasty in patients with coronary artery disease. Benestent Study Group. N Engl J Med. 1994 Aug 25;331(8):489-95. doi: 10.1056/NEJM199408253310801.

    PubMed 8041413

  • Fischman DL, Leon MB, Baim DS, Schatz RA, Savage MP, Penn I, Detre K, Veltri L, Ricci D, Nobuyoshi M, et al. A randomized comparison of coronary-stent placement and balloon angioplasty in the treatment of coronary artery disease. Stent Restenosis Study Investigators. N Engl J Med. 1994 Aug 25;331(8):496-501. doi: 10.1056/NEJM199408253310802.

    PubMed 8041414

  • Rensing BJ, Vos J, Smits PC, Foley DP, van den Brand MJ, van der Giessen WJ, de Feijter PJ, Serruys PW. Coronary restenosis elimination with a sirolimus eluting stent: first European human experience with 6-month angiographic and intravascular ultrasonic follow-up. Eur Heart J. 2001 Nov;22(22):2125-30. doi: 10.1053/euhj.2001.2892.

    PubMed 11686669

  • Moses JW, Leon MB, Popma JJ, Fitzgerald PJ, Holmes DR, O'Shaughnessy C, Caputo RP, Kereiakes DJ, Williams DO, Teirstein PS, Jaeger JL, Kuntz RE; SIRIUS Investigators. Sirolimus-eluting stents versus standard stents in patients with stenosis in a native coronary artery. N Engl J Med. 2003 Oct 2;349(14):1315-23. doi: 10.1056/NEJMoa035071.

    PubMed 14523139

  • Sirnes PA, Golf S, Myreng Y, Molstad P, Emanuelsson H, Albertsson P, Brekke M, Mangschau A, Endresen K, Kjekshus J. Stenting in Chronic Coronary Occlusion (SICCO): a randomized, controlled trial of adding stent implantation after successful angioplasty. J Am Coll Cardiol. 1996 Nov 15;28(6):1444-51. doi: 10.1016/s0735-1097(96)00349-x.

    PubMed 8917256

  • Rahel BM, Laarman GJ, Suttorp MJ; PRISON II study investigators. Primary stenting of occluded native coronary arteries II--rationale and design of the PRISON II study: a randomized comparison of bare metal stent implantation with sirolimus-eluting stent implantation for the treatment of chronic total coronary occlusions. Am Heart J. 2005 Mar;149(3):e1-3. doi: 10.1016/j.ahj.2004.10.027.

    PubMed 15864219

  • Rahel BM, Laarman GJ, Kelder JC, Ten Berg JM, Suttorp MJ. Three-year clinical outcome after primary stenting of totally occluded native coronary arteries: a randomized comparison of bare-metal stent implantation with sirolimus-eluting stent implantation for the treatment of total coronary occlusions (Primary Stenting of Totally Occluded Native Coronary Arteries [PRISON] II study). Am Heart J. 2009 Jan;157(1):149-55. doi: 10.1016/j.ahj.2008.08.025. Epub 2008 Nov 6.

    PubMed 19081412

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing sirolimus-eluting stent in people with Coronary Artery Disease and Coronary Disease, run by R&D Cardiologie at 2 sites in Netherlands.

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 2 inclusion and 4 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: finished, as of the sponsor's last update on 6 Mar 2007. 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 Netherlands. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The binary restenosis rate (defined as restenosis >50% on follow-up angiography) at six-month angiography. 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 NCT00258596, which also lists 9 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 6 Mar 2007.

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