NCT05521542

Brief Summary

This prospective, single-arm, multi-center, safety and feasibility first-in-human study will evaluate the safety and feasibility of the SirPlux Duo™ Dual-API Coated PTCA Balloon Catheter to treat de-novo lesions between ≥2.0 and ≤4.0 mm in patients with symptomatic stable angina, unstable angina, and NSTEMI.

Trial Health

78
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable coronary-artery-disease

Timeline
10mo left

Started Jan 2023

Typical duration for not_applicable coronary-artery-disease

Geographic Reach
3 countries

5 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress80%
Jan 2023Mar 2027

First Submitted

Initial submission to the registry

August 25, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 30, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

January 30, 2023

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2027

Expected
Last Updated

October 3, 2025

Status Verified

September 1, 2025

Enrollment Period

2.9 years

First QC Date

August 25, 2022

Last Update Submit

September 30, 2025

Conditions

Keywords

Drug Coated BallonDCBCoronary Artery Disease

Outcome Measures

Primary Outcomes (4)

  • Device Success

    Defined as successful delivery, balloon inflation, deflation, and retrieval of the intact study device without burst below rated burst pressure

    (Peri-procedural)

  • Technical Success

    Defined as successful lesion crossing, completion of POBA and immediate achievement of \<=30% residual stenosis (by QCA) of the target lesion upon completion of angiography post investigational device inflation

    (Peri-procedural)

  • Procedural Success

    Defined as device success and technical success and absence of procedural complications following SirPlux Duo™ Dual-API Coated PTCA Balloon Catheter inflation (ie absence of vessel dissection or loss of TIMI 3 flow)

    (Peri-procedural)

  • In-segment Late Lumen Loss (LLL) by QCA

    difference in minimum lumen diameter, as determined by QCA, from baseline (immediately post-DCB) to 6 months post-procedure

    6 months post-procedure

Secondary Outcomes (13)

  • All-cause death

    24 hours post-discharge

  • Target Vessel Myocardial Infarction (TVMI)

    30 days, 6 months, 12 months and 24 months post-procedure

  • Major Adverse Cardiac Event (MACE)

    30 days, 6 months, 12 months and 24 months post-procedure

  • Target Vessel Failure (TVF)

    30 days, 6 months, 12 months and 24 months post-procedure

  • Target Lesion Failure (TLF)

    30 days, 6 months, 12 months and 24 months post-procedure

  • +8 more secondary outcomes

Study Arms (1)

SirPlux™ Duo Dual-API Coated PTCA Balloon Catheter

EXPERIMENTAL

Subjects who meet the inclusion criteria and agree to participate in the study will be enrolled and undergo a planned percutaneous coronary intervention with SirPlux™.

Device: SirPlux Duo™ Dual-API Coated PTCA Balloon Catheter

Interventions

SirPlux Duo™ Dual-API Coated PTCA Balloon Catheter is a Drug-Coated Balloon to treat de novo lesions in patients with symptomatic stable angina, unstable angina, or NSTEMI

SirPlux™ Duo Dual-API Coated PTCA Balloon Catheter

Eligibility Criteria

Age18 Years - 89 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The subject is ≥18 years and \<90 years old.
  • Subject (or legal guardian) understands the trial requirements and the treatment procedures and provides written informed consent before any trial-specific tests or procedures are performed.
  • Subject has been diagnosed with a symptomatic stable angina, or acute coronary syndrome.
  • Life expectancy \> 1 year.
  • The subject is planned to undergo a percutaneous coronary intervention for a known lesion meeting the angiographic criteria set out below.
  • Women of child-bearing potential must agree to use a reliable method of contraception from the time of screening through 12 months after the index procedure. Men with a female partner of childbearing potential must agree to use condoms plus an additional reliable contraceptive method within 12 months after the index procedure.
  • The subject is able and willing to comply with all assessments in the study, including dual antiplatelet therapy (DAPT), ASA indefinitely, and P2Y12 inhibitor for a minimum of 6 months for stable angina subjects, and 12 months for unstable angina and NSTEMI subjects.
  • The subject shall be under optimal medical therapy for ASCVD, which includes at a minimum high-intensity statin therapy. If statin intolerant, the subject should be treated with a PCSK9 inhibitor, ezetimibe or bempedoic acid.
  • Target lesion is located within a de-novo lesion located in a native coronary artery with a reference vessel diameter between and including 2.0 mm and 4.0mm by visual estimate, with an in-segment length \<=36mm. Target lesions must have a visually estimated stenosis of ≥50% and be \<100% in symptomatic subjects prior to lesion pre-dilation.

You may not qualify if:

  • If multiple lesions are treated, only two may be treated with the investigational device.
  • If two lesions are treated with the investigational device, they must be in different vessels.
  • Non-target lesions (lesion to be treated with something other than the investigational device) may be treated at either baseline or staged PCI but never in the same vessel as the target lesion.
  • Successful pre-dilation with semi and/or non-compliant balloon of the target lesion(s) (defined as no major flow-limiting dissections (Grade C or higher) and \<30% residual stenosis of the target lesion by a visual estimate on angiography). Adjunctive pre-dilation therapies such as scoring balloon, cutting balloon, and IVL are allowed. Rotablator or similar rotational atherectomy devices are restricted per protocol.
  • Subject has current problems with substance abuse.
  • Subject has a planned procedure that may cause non-compliance with the protocol.
  • Subject participates in another investigational drug or device clinical study that has not reached its primary endpoint.
  • Subject intends to participate in another investigational drug or device clinical study within 12 months after the index procedure.
  • Chronic total occlusion (CTO) of the target lesion(s) or Thrombolysis In Myocardial Infarction (TIMI) flow \< 2.
  • Subject requires treatment of a coronary lesion(s) involving a bifurcation with significant ostial / proximal disease within 5mm of a side-branch greater than 2.0mm.
  • Target lesion(s) within native or synthetic vessel grafts.
  • The subject has a known coagulopathy or has a bleeding diathesis, thrombocytopenia (with platelet counts less than 100,000/microliter) or platelets \> 450,000/microliter, or international normalized ratio \>1.5. Subjects on chronic oral anticoagulation medications will be excluded of the study.
  • Known renal insufficiency, estimated glomerular filtration rate (eGFR) ≤30 mL/min, by institutional calculation.
  • Subject on dialysis, or acute kidney failure (as per physician judgment).
  • Subject in whom antiplatelet, anticoagulant, or thrombolytic therapy is contraindicated or hypersensitive.
  • +22 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

The Prince Charles Hospital

Chermside, Queensland, 4032, Australia

Location

Royal Adelaide Hospital

Adelaide, South Australia, 50000, Australia

Location

Victorian Heart Institute - Monash University

Clayton, Victoria, 3168, Australia

Location

Cecanot Hospital

Santo Domingo, Dominican Republic

Location

Te Toka Tumai Auckland, Auckland City Hospital

Auckland, New Zealand

Location

MeSH Terms

Conditions

Coronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Study Officials

  • Stephen Nicholls

    Monash Heart

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Prospective, multi-center, single-arm, feasibility study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 25, 2022

First Posted

August 30, 2022

Study Start

January 30, 2023

Primary Completion

December 31, 2025

Study Completion (Estimated)

March 1, 2027

Last Updated

October 3, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations