NCT06131333

Brief Summary

COMPLEX Registry is an investigator-initiated, retrospective, high-volume Polish single-center clinical registry enrolling 980 consecutive patients with complex coronary artery lesions treated percutaneously between September 2015 and December 2021. All data were collected prospectively as regards the clinical and technical endpoints. The study aimed to assess the safety and efficacy of new-generation, thin-struts DES in patients with complex CAD at long-term clinical follow-up. The primary endpoint of the study was the occurrence of TLR during follow-up. Secondary endpoints were a procedural success and the occurrence of MACE, including all-cause death, MI, or TLR.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
980

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2022

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

January 1, 2022

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

October 26, 2023

Completed
19 days until next milestone

First Posted

Study publicly available on registry

November 14, 2023

Completed
Last Updated

November 14, 2023

Status Verified

November 1, 2023

Enrollment Period

10 months

First QC Date

October 26, 2023

Last Update Submit

November 8, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Target lesion revascularization (TLR)

    During the 12-month follow-up, the incidence of TLR in patients included in the study will be reported. TLR was defined as revascularization post-stenting within the stent or within the 5-mm borders adjacent to the stent.

    12 months

Secondary Outcomes (2)

  • Major adverse cardiac events (MACE)

    12 month

  • Procedural success

    Peri-procedural

Study Arms (1)

Complex PCI

All consecutive patients with complex coronary artery disease (CAD) were treated with percutaneous coronary intervention (PCI). The complexity of CAD was defined as having at least one of the following characteristics: chronic total occlusion (CTO), lesion length \>40 mm, severe calcification assessed by angiography or intravascular imaging examination, multivessel PCI during the same intervention, or true bifurcation defined as any lesion involving both the main vessel (MV), proximal or distal and the ostium of the side branch (SB) (Medina 1,1,1; 1,0,1; or 0,1,1).

Procedure: Percutaneous coronary intervention (PCI) with drug-eluting stent (DES) implantation

Interventions

PCI was performed according to the general and local recommendations. The choice of DES among the new generation DES and the decision on procedure optimization belonged to the operator.

Complex PCI

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All patients with symptomatic CAD, including chronic coronary syndromes (CCS) and acute coronary syndromes (ACS), qualified for PCI and meeting the criteria for complex CAD were included in the analysis.

You may not qualify if:

  • left main stem
  • PCI treated during index procedure;
  • cardiogenic shock,
  • thrombolysis before PCI;
  • month follow-up not available

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Poznan University of Medical Sciences, Poland

Poznan, Wielkopolska, 61-701, Poland

Location

MeSH Terms

Interventions

Percutaneous Coronary InterventionDrug Implants

Intervention Hierarchy (Ancestors)

Endovascular ProceduresVascular Surgical ProceduresCardiovascular Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical ProceduresDelayed-Action PreparationsDosage FormsPharmaceutical Preparations

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 26, 2023

First Posted

November 14, 2023

Study Start

January 1, 2022

Primary Completion

October 30, 2022

Study Completion

December 31, 2022

Last Updated

November 14, 2023

Record last verified: 2023-11

Locations