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AzTrials

Stable AnginaPhase 4BVS-FlowNCT02738658

Comparison of the Vasomotor Function and Myocardial Flow in Patients Treated With Bioresorbable and Metallic Stents at 1 Year

A Phase 4 study testing Bioresorbable vascular scaffold and Everolimus-eluting stent in people with Stable Angina, run by Institut d'Investigació Biomèdica de Bellvitge at 3 sites in Spain.

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: A total of 25-50% of patients with stable coronary atherosclerosis treated with metallic stent implantation remain with effort angina despite optimal medical treatment and absence of stent restenosis at 1 year. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Stable Angina
What is being tested?
Bioresorbable vascular scaffold and Everolimus-eluting stent
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
70 participants
Where
3 sitesSpain
Study dates
1 Mar 2015to 2 Jul 2018
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

  • Patients with stable angina or silent angina with myocardial ischemia detected by non-invasive tests or patients with acute coronary syndromes with no increase of > 5 times the upper value of normality of cardiac biomarkers (troponin).
  • Patients with coronary artery disease with angiographic stenosis >

Who cannot join

None listed.

Trial locations and contacts

3 sites in 1 country.

Spain3 sites
  • Hospital del Mar

    Barcelona, 08003

  • Hospital Clinic

    Barcelona, 08036

  • Hospital Universitari de Bellvitge

    L'Hospitalet de Llobregat, Barcelona, 08173

Other trials in Spain

About this study

Official title: Comparison of the Vasomotor Function and Myocardial Flow in Patients Treated

Background: A total of 25-50% of patients with stable coronary atherosclerosis treated with metallic stent implantation remain with effort angina despite optimal medical treatment and absence of stent restenosis at 1 year. The most plausible cause of persistent effort angina after stent implantation is microcirculatory dysfunction. Coronary circulation matches the myocardial blood supply and oxygen consumption. Metallic stent implantation has been related with endothelial dysfunction and impaired coronary blood flow reserve (relation between coronary blood flow at rest and maximal hyperemia) of the treated vessel at 1 year.

Bioresorbable Vascular Scaffold (BVS) has been shown to improve the endothelial function and to improve the angina symptoms at 1 year. However, the coronary blood flow of BVS has never been tested.

Read more

Main objective: To determine differences in the blood average peak velocity at maximal hyperemia with adenosine infusion between patients treated with bioresorbable and metallic coronary stents at 1 year after stent implantation.

Methodology: A total of 70 patients are 1:1 randomized to everolimus-eluting metallic stent (EES) versus everolimus-eluting BVS implantation in patients with stable coronary disease. At 1 year, patients undergo to invasive coronary angiography prior cessation of vasomotor drugs. A pressure/Doppler wire is advanced distally to the "treated segment" and the endothelial (acetylcholine) and non-endothelial (adenosine and nitroglycerine) vasomotor function is assessed with quantitative coronary angiography and pressure and Doppler measurements. Angina test questionnaires are obtained at different time-points of the study.

Expected results: A difference between patients treated with BVS and EES of 12.0 cm/sc in the maximal average peak velocity (APV) under maximal hyperemia (with adenosine administration) is expected, as assessed by Doppler measurements, at 1 year after stent implantation. The study is powered to assess superiority in terms of maximal APV favoring patients treated with BVS.

Conditions
Stable Angina
Being tested
Bioresorbable vascular scaffold, Everolimus-eluting stent
Keywords
Coronary microcirculatory dysfunction, Coronary endothelium dysfunction
Medical subject headings
Angina, Stable

What participants receive

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

  • Bioresorbable vascular scaffoldDevice

    Also called Bioresorbable stents

  • Everolimus-eluting stentDevice

Study groups in NCT02738658
Study groupRoleWhat they receive
Bioresorbable vascular scaffold (BVS)ExperimentalPatients with stable coronary angina with coronary artery disease suitable to be treated with a bioresorbable vascular scaffold.
Receives: Device: Bioresorbable vascular scaffold
Everolimus-eluting stent (EES)Active comparatorPatients with stable coronary angina with coronary artery disease suitable to be treated with a Everolimus-eluting stent .
Receives: Device: Everolimus-eluting stent

What is being measured

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

  1. Difference in the average peak velocity at maximal hyperemia between bioresorbable vascular scaffolds and everolimus-eluting stents as assessed by doppler wire measurement.

    Measured: 1-year after stent implantation

Secondary outcomes (1)
  1. Difference in endothelial dysfunction with acetyl-choline infusion between bioresorbable vascular scaffolds and everolimus-eluting stents as assessed by quantitative coronary angiography (4% of lumen reduction)

    Measured: 1-year after stent implantation

Timeline

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

  1. First posted14 Apr 2016 (estimated)
  2. Study start1 Mar 2015
  3. Primary completion2 Jul 2018
  4. Study completion2 Jul 2018

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
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
70 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02738658
Sponsor's protocol ID
20151810
Acronym
BVS-Flow
Status last verified
Jul 2018
First submitted
11 Apr 2016
Last updated
3 Jul 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Bioresorbable vascular scaffold and Everolimus-eluting stent in people with Stable Angina, run by Institut d'Investigació Biomèdica de Bellvitge at 3 sites in Spain.

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 0 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 3 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Spain. 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?

Difference in the average peak velocity at maximal hyperemia between bioresorbable vascular scaffolds and everolimus-eluting stents as assessed by doppler wire measurement. (time frame: 1-year after stent implantation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Jul 2018.

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