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Coronary Artery DiseaseSPARX RCTNCT07397845

Stents Versus PAclitaxel Coated Balloons for Revascularization of CompleX and Small Coronary Vessels (SPARX) Trial

A study testing Protégé and Protégé NC, Agent and Drug Eluting Stent in people with Coronary Artery Disease and Drug Eluting Balloon, run by Translumina GmbH at 1 site in Switzerland.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The main objective of the SPARX trial is to compare paclitaxel-coated balloons to with contemporary DES in complex and small coronary artery lesions in patients with NSTEACS or CCS; the co-primary objective is to compare two different paclitaxel-coated balloons, Protégé and Agent, with each other. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Protégé and Protégé NC, Agent and Drug Eluting Stent
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,380 participants
Where
1 siteSwitzerland
Study dates
22 Apr 2026to Apr 2029
Phase
Interventional
Are there results?
Not yet: the study is under way

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

Clinical inclusion criteria:

  1. Age≥18 years
  2. Patient with NSTE-ACS or CCS with either symptoms and/or ischemia on non-invasive or invasive testing (i.e. FFR/iFR, CMR, SPECT, PET-CT or stress-echo)
  3. The patient must be able to understand and provide written informed consent and comply with all study procedures
  4. Life expectancy of > 2 years Angiographic inclusion criteria:
  5. One or more trial target vessel (LAD, CX or RCA, or of their branches) with:
  6. Stenosis of ≥70% or
  7. Stenosis ≥50% and <70% (visually assessed) with evidence of ischemia by positive stress test, or FFR ≤0.80, or iFR <0.90 or IVUS minimum lumen area ≤4.0 mm2
  8. The target vessel/target lesion matches at least one of the following criteria
  9. Small vessel: vessel reference diameter is ≤ 3 mm
  10. Long lesions: length ≥ 25 mm
  11. Calcified lesion: grade 3 by angiography or confirmed on intravascular imaging
  12. Chronic total occlusion (CTO)
  13. Bifurcation lesions, including ostial LAD and ostial CX
  14. Lesions in diabetic coronary artery disease
  15. In-Stent Restenosis (ISR)
  16. Lesion preparation must be according to the 3rd DCB consensus, with lesions that have:
  17. ≤ 30% residual stenosis
  18. TIMI (Thrombolysis in Myocardial Infarction) flow grade 3.
  19. The absence of flow-limiting dissection (Type A-C allowed only)

Clinical exclusion criteria:

  1. STEMI or cardiogenic shock related to an acute MI within 2 days prior to the index PCI
  2. Pregnancy or nursing declarations (As per country specific guideline) (a negative pregnancy test is required of women with child-bearing potential within 7 days prior to enrollment)
  3. LVEF<30%
  4. Known contraindication or hypersensitivity to any limus family drugs, paclitaxel, or to medications such as heparin, aspirin, clopidogrel, ticlopidine, prasugrel and ticagrelor or any component of the devices.
  5. Allergy to imaging contrast media which cannot be adequately pre-medicated
  6. Stroke/TIA during the last 6 months, or any prior intracranial hemorrhage
  7. Active peptic ulcer or upper gastrointestinal bleeding within last 6 months
  8. Known renal insufficiency with an eGFR<30 ml/min1.73m2, or subject on dialysis, or acute renal failure (as per physician judgment)
  9. Planned surgery within 6 months with the necessity to stop DAPT
  10. History of bleeding diathesis or coagulopathy
  11. Platelet count<100.000 cells/mm3 or >400.000 cells/mm3, a WBC of <3000 cells/mm3, documented or suspected liver disease (including laboratory evidence of hepatitis)
  12. Patient is a recipient of a heart transplant
  13. Participation in another investigation with an investigational drug or another MD within the 30 days preceding and during the present investigation Angiographic exclusion criteria:
  14. Target lesion is in the left main coronary artery
  15. Target lesion is in a coronary artery bypass graft
  16. Flow limiting target vessel thrombus
  17. Evidence of aneurysm in target vessel within 10 mm of the target lesion
  18. Aorto-ostial target lesion (within 3 mm of the aorta junction)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Dr Brijesh Mishra, PhD contact

+919654596737

drbrijeshmishra@translumina.in

Deepanshi Thakur, MSc contact

deepanshithakur@translumina.in

Switzerland1 site, 1 recruiting
  • Luzerner Kantonsspital Spitalstrasse, 6000 Luzern 16, Switzerland

    Lucerne, Canton of Lucerne, 6000 Luzern 16

    Monika Röthlin, 41 41 205 60 14 ext. +41, monika.roethlin@luks.ch

    Recruiting

Other trials in Switzerland

About this study

The main objective of the SPARX trial is to compare paclitaxel-coated balloons to with contemporary DES in complex and small coronary artery lesions in patients with NSTEACS or CCS; the co-primary objective is to compare two different paclitaxel-coated balloons, Protégé and Agent, with each other.

Read the detailed description

PCI with DES remains a cornerstone of interventional cardiology for the treatment of coronary artery disease. While DES have significantly improved outcomes compared to plain old angioplasty (POBA) and metal stents, there is still a risk of in-stent restenosis (ISR) and stent thrombosis (ST). To overcome these problems, non-stent techniques using only DCBs have emerged as a way of delivering anti-proliferative drugs to the vessel wall without the need for a permanent implant. It is hypothesised that this approach may promote positive remodelling and reduce the risk of vessel thrombosis and restenosis.

The use of PCI with DCB alone was first investigated for the treatment of ISR, where it showed good results and is currently recommended in guidelines for the treatment of ISR. There have also been several DCB trials in de novo coronary lesions, but the results have been more mixed. Many DCBs are now commercially available, both with paclitaxel and sirolimus coating, and it appears that there is no "class effect" due to the heterogeneity that exists within balloon designs, polymer coating, type of drug and concentrations used.

One of the first trials in de novo lesions, the PICCOLETO trial, was stopped early due to a higher MACE rate in the DCB group compared to the DES group. However, several weaknesses of the study may explain the worse outcome in those treated with DCBs compared to DES. The most important was probably the low dose of paclitaxel delivered by the balloon and the fact that only a small percentage of the population underwent lesion predilatation. Several studies have later shown non-inferiority of DCB to DES for de novo lesions, and the method is currently embraced by the interventional cardiology community.

Several DCBs are now available and approved for use, and more are on the way, but head-to-head data are scarce. The SPARX trial is designed to compare two DCBs, Protégé™ and Agent™, with conventional DES PCI in complex and small coronary lesions, with the idea that this type of coronary disease may benefit from a DCB-only technique. The trial will also compare the two certified and well-established paclitaxel-coated balloons, Protégé™ and Agent™. The hypothesis is that Protégé™ will perform at least as well as Agent™.

The primary objective of the SPARX trial is to compare paclitaxel-coated balloons with contemporary DES in complex and small coronary artery lesions in patients with non-ST elevation acute coronary syndrome (NSTEACS) or chronic coronary syndrome (CCS); The co-primary objective is to compare 2 different paclitaxel-coated balloons, Protégé™ and Agent™, with each other.

Being tested
Protégé and Protégé NC, Agent, Drug Eluting Stent
Keywords
SPARX RCT, Protege
Medical subject headings
Coronary Artery Disease

What participants receive

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

  • Protégé and Protégé NCDevice

    Protégé Drug-eluting PTCA Balloon Catheters are rapid exchange catheters with a semi-compliant (Protégé DEB) balloon, or a non-compliant (NC) balloon (Protégé NC DEB), both with paclitaxel coating. Protégé is certified and CE marked.

  • AgentDevice

    The AgentTM Paclitaxel-Coated Balloon Catheter (AgentTM DCB) is a monorail, semi-compliant PCI catheter. Agent™ PCB is CE and FDA certified and approved for clinical use both in Europe and in the US.

  • Drug Eluting StentDevice

    Drug Eluting stents is a standard of care treatment for narrowed coronary arteries of the patients

Study groups in NCT07397845
Study groupRoleWhat they receive
Paclitaxel coated balloonExperimentalPatients are only randomized after successful lesion preparations performed as per the the 3rd DCB Consensus. Post this, if the automatic generation of the device reflects Protege on the opted platform, then the patient is enrolled in this arm of the RCT
Receives: Device: Protégé and Protégé NC
Drug coated balloonActive comparatorPatients are only randomized after successful lesion preparations performed as per the the 3rd DCB Consensus. Post this, if the automatic generation of the device reflects Agent on the opted platform, then the patient is enrolled in this arm of the RCT
Receives: Device: Agent
Drug eluting stent (DES)Active comparatorDES to standard of care treatment during percutaneous coronary intervention. In this RCT, patients are only randomized after successful lesion preparations performed as per the the 3rd DCB Consensus. Post this, if the automatic generation of the device reflects DES (CE/FDA marked) on the opted platform, then the patient is enrolled in this arm of the RCT
Receives: Device: Drug Eluting Stent

What is being measured

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

  1. Device oriented composite endpoint (DOCE)

    1. Cardiac death
    2. New target vessel - related myocardial infarction (TV-MI)
    3. Ischemia-driven target-lesion revascularization (TLR)

    Measured: 24 months

Secondary outcomes (2)
  1. Patient oriented composite endpoint (POCE)

    1. All-cause death
    2. Any Stroke
    3. All new MI (TV and non-TV related)
    4. Unplanned ischemia-driven repeat revascularization

    Measured: 1 month, 6 month, 12 month, 18 month, 24 month

  2. Additional outcomes

    Total no of events in 1380 patients will be analysed-

    1. Definite or probable vessel (stent) thrombosis
    2. Ischemia-driven target-vessel revascularization (TVR)
    3. Major bleeding (BARC type 3 to 5)

    Measured: 1 month, 6 month, 12 month, 18 month, 24 months

Timeline

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

  1. First posted9 Feb 2026
  2. Study start22 Apr 2026
  3. Primary completionApr 2028 (estimated)
  4. Study completionApr 2029 (estimated)

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized, controlled, multi-centre, global, open label, clinical trial
Masking
None (open label)
Enrolment
1,380 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07397845
Sponsor's protocol ID
TL/RCT/DEB/2025-04
Acronym
SPARX RCT
Status last verified
Oct 2025
First submitted
5 Jan 2026
Last updated
1 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Investigators do not plan to share individual participant data. However, an overall study data and it's publication results shall be uploaded upon completion of this project at Ct.Gov.

Questions about this trial

What is this clinical trial studying?

A study testing Protégé and Protégé NC, Agent and Drug Eluting Stent in people with Coronary Artery Disease and Drug Eluting Balloon, run by Translumina GmbH at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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: looking for participants now, as of the sponsor's last update on 1 Jun 2026. 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 Switzerland. 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Dr Brijesh Mishra, PhD (+919654596737, drbrijeshmishra@translumina.in), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Device oriented composite endpoint (DOCE) (time frame: 24 months). 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 1 Jun 2026.

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