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StentsPhase 4OCTOPUSNCT01056744

Optical Coherence Tomography to Evaluate Paclitaxel-Eluting Balloons and Everolimus-Eluting Coronary Stents

A Phase 4 study testing Percutaneous coronary intervention with stent implantation in people with Stents and Neointimal Proliferation, run by University of Jena at 1 site in Germany.

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

Background: Safety concerns regarding use of drug eluting stent systems (DES) are related mostly to late stent thrombosis, which is facilitated by incomplete stent endothelial coverage. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Stents, Neointimal Proliferation
What is being tested?
Percutaneous coronary intervention with stent implantation
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
1 siteGermany
Study dates
Jun 2009to Jun 2012
Phase
Phase 4
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

  • Established indication to PCI according to the guidelines of American Heart Association and American College of Cardiology
  • Age > 18 years, written consent
  • Native coronary lesion suitable for stent placement and OCT imaging

Who cannot join

  • General exclusion criteria:
  • Pregnancy and breast feeding mother
  • Co-morbidity with an estimated life expectancy of < 50 % at 1 year
  • Scheduled major surgery in the next 6 months
  • Not able to give informed written consent or non-compliance
  • Participation in other PCI trial
Show all 15Show fewer
  • Procedural exclusion criteria:
  • Acute coronary syndromes and cardiogenic shock
  • Previous subacute or late coronary stent thrombosis
  • Known non-responsiveness / allergy to aspirin or thienopyridines
  • Known allergy against everolimus or against taxol derivates
  • Angiographic exclusion criteria:
  • Culprit lesion within the proximal 10 mm of the right or left coronary artery
  • Saphenous vein grafts
  • Estimated stent length > 30 mm

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • University Hospital of Jena, 1st Medical Department, Division of Cardiology

    Jena, 07740

Other trials in Germany

About this study

Official title: Endothelial Stent Coverage and Neointimal Proliferation at 6 Months After Implantation of a Coronary Everolimus-Eluting Stent Compared With a Bare Metal Stent Postdilated With a Paclitaxel-Eluting Balloon: A Randomised Study Using Optical Coherence Tomography

Background:

Safety concerns regarding use of drug eluting stent systems (DES) are related mostly to late stent thrombosis, which is facilitated by incomplete stent endothelial coverage. Specific information about time course and amount of endothelial strut coverage of different DES is required, in order to further refine the concept of antiplatelet therapy after DES implantation. Optical coherence tomography (OCT) is emerging as a new gold standard for endovascular imaging of stents, atherosclerosis progression, vulnerable plaque and neointimal proliferation. Very limited OCT data about endothelial coverage of DES are currently available. Aim of this study is a comparative evaluation of XIENCE V® everolimus eluting stent (Abbot Vascular) and of the bare metal stent (BMS) Coroflex® Blue postdilated with the drug-eluting balloon (DEB) SeQuent® Please (paclitaxel-eluting balloon, B. Braun Melsungen AG) in terms of endothelial coverage and neointimal proliferation using OCT.

Read more

Study Design:

A number of 80 patients scheduled for elective percutaneous coronary intervention (PCI) with a native coronary stenosis suitable for DES implantation and OCT imaging are openly randomized 1:1 to either XIENCE V® or Coroflex® Blue/Sequent® Please. The study is prospectively conducted at a university high-volume PCI center with OCT expertise (Jena, Germany). Angiographic follow-up and OCT imaging with motorized pull-back at 1 mm/s are planned in all patients 6 months after implantation of the study stents. OCT endpoints are: (1) endothelial coverage, expressed as % of struts without coverage and % of stent length containing non-covered struts, and respectively (2) neointimal proliferation, given as % neointimal volumetric proliferation within the whole stent and also as focal peak % neointimal area proliferation. The study is not powered for clinical endpoints, which are: subacute or late stent thrombosis and need for revascularization of the stent segment. Given the high number of measurements (15 cross-section images / 1 mm stent length), OCT endpoints are likely to reach significance at the level P < 0.05 even at a follow-up drop-out rate up to 20%.

Being tested
Percutaneous coronary intervention with stent implantation
Keywords
coronary stent, optical coherence tomography, drug-eluting, neointimal proliferation

What participants receive

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

  • Percutaneous coronary intervention with stent implantationDevice

    Also called XIENCE® V, Coroflex Blue®, Sequent Please®

    Percutaneous coronary intervention with implantation of either:

    • a XIENCE® V everolimus eluting coronary stent in one of the following sizes: 3.0 x 18 mm, 3.0 x 28 mm, 2.5 x 18 mm, 2.5 x 28 mm (DES group), or:
    • a Coroflex Blue® coronary stent postdilated with a Sequent Please® paclitaxel-eluting balloon in one of the following size combinations (stent / balloon): 3.0 x 16 mm / 3.0 x 20 mm, 3.0 x 25 mm / 3.0 x 30 mm, 2.5 x 16 mm / 2.5 x 20 mm, 2.5 x 25 mm / 2.5 x 30 mm (BMS/DEB group)
Study groups in NCT01056744
Study groupRoleWhat they receive
DESActive comparatorImplantation of a XIENCE® V everolimus eluting coronary stent (drug-eluting stent, DES)
Receives: Device: Percutaneous coronary intervention with stent implantation
BMS/DEBActive comparatorImplantation of a Coroflex Blue® coronary stent (bare metal stent, BMS) postdilated with a Sequent Please® paclitaxel-eluting balloon (drug-eluting balloon, DEB)
Receives: Device: Percutaneous coronary intervention with stent implantation

What is being measured

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

  1. Endothelial coverage of the stent struts assessed by optical coherence tomography

    Measured: 6 months

Secondary outcomes (3)
  1. Neointimal proliferation within the stent assessed by optical coherence tomography

    Measured: 6 months

  2. Subacute or late thrombosis of the study stent

    Measured: 6 months

  3. Need for revascularization of the vessel segment containing the study stent

    Measured: 6 months

Timeline

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

  1. First posted26 Jan 2010 (estimated)
  2. Study startJun 2009
  3. Primary completionMay 2011
  4. Study completionJun 2012

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01056744
Sponsor's protocol ID
UKJ-TCP-1
Acronym
OCTOPUS
Status last verified
Feb 2013
First submitted
25 Jan 2010
Last updated
26 Feb 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Poerner TC, Otto S, Gassdorf J, Nitsche K, Janiak F, Scheller B, Goebel B, Jung C, Figulla HR. Stent coverage and neointimal proliferation in bare metal stents postdilated with a Paclitaxel-eluting balloon versus everolimus-eluting stents: prospective randomized study using optical coherence tomography at 6-month follow-up. Circ Cardiovasc Interv. 2014 Dec;7(6):760-7. doi: 10.1161/CIRCINTERVENTIONS.113.001146. Epub 2014 Nov 4.

    PubMed 25371536
  • Poerner TC, Otto S, Gassdorf J, Janiak F, Danzer C, Ferrari M, Figulla HR. A prospective randomised study using optical coherence tomography to assess endothelial coverage and neointimal proliferation at 6-months after implantation of a coronary everolimus-eluting stent compared with a bare metal stent postdilated with a paclitaxel-eluting balloon (OCTOPUS Trial): rationale, design and methods. EuroIntervention. 2011 May;7 Suppl K:K93-9. doi: 10.4244/EIJV7SKA16.

    PubMed 22027737

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Percutaneous coronary intervention with stent implantation in people with Stents and Neointimal Proliferation, run by University of Jena at 1 site in Germany.

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 15 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 26 Feb 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Endothelial coverage of the stent struts assessed by optical coherence tomography (time frame: 6 months). 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 NCT01056744, which also lists 2 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 26 Feb 2013.

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