NCT04539145

Brief Summary

The study will be performed 120 patients at about 6 to 8 study centers. Only patients with clinical conditions requiring assessment of patency of the treated BTK lesions at 6 months post procedure by MRA as part of standard care to prevent amputations as consequence of non-detected re-stenosis/occlusions will be included in the study. The sequence in which the individual patients will be treated will be randomized with the Chocolate PTA balloon and the uncoated conventional PTA balloon at each center. 60 patients will be randomized to uncoated conventional PTA balloon treatment and 60 patients to treatment with the Chocolate PTA balloon. All lesions in each patient (lesions that fulfill the inclusion/exclusion criteria) should be treated as the patient is randomized. In patients with long lesions more than one balloon may be used. Overlapping of balloons (at least 10mm) is mandatory to avoid untreated gaps between sequential treatments. Follow up will be performed at 1 and 6 months.

Trial Health

47
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Aug 2020

Geographic Reach
3 countries

8 active sites

Status
unknown

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

First Submitted

Initial submission to the registry

August 4, 2020

Completed
Same day until next milestone

Study Start

First participant enrolled

August 4, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

September 4, 2020

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 27, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 27, 2022

Completed
Last Updated

September 4, 2020

Status Verified

August 1, 2020

Enrollment Period

1.6 years

First QC Date

August 4, 2020

Last Update Submit

August 31, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Recoil (lumen loss > 30%) 15-30 min after study intervention angiographically documented and analyzed by a core-lab

    The minimal lumen of the artery in the area of Intervention in mm will be compared directly after the Intervention and at 15-30 minuntes

    15-30 min after study intervention

Secondary Outcomes (9)

  • the loss of patency greater than 50% in the MRA after six month

    6 month

  • the re-occlusion rate at 6 months (measured by MRA)

    6 month

  • Residual stenosis (MLD post compared to RVD, % of RVD) >50% after the invention

    immedetely after the intervention

  • Wound status at 1 and 6 months:

    1 and 6 months

  • target lesion revascularization TLR rate at 1 and 6 months

    1 and 6 months

  • +4 more secondary outcomes

Study Arms (2)

Chocolate PTA balloon

EXPERIMENTAL
Device: Chocolate PTA Balloon

POBA

OTHER

Intervention with regular baloon

Device: conventional balloon angioplasty

Interventions

Chocolate PTA Balloon

Chocolate PTA balloon

conventional bal-loon angioplasty

POBA

Eligibility Criteria

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

You may qualify if:

  • \>18 years of age
  • Chronic stenotic or occlusive atherosclerotic disease of the infrapopliteal arteries
  • Patients with clinical conditions requiring assessment of vessel patency of treated BTK lesion 6 months post procedure as part of clinical standard of care to prevent amputa-tions as consequence of non-detected re-stenosis
  • BTK intervention with lesions between 1 and 25 cm
  • Sufficient outflow of the treated artery to the foot (less than 50% stenosis or sufficient collaterals)
  • Rutherford 3-5 patients
  • Patients who are able to be followed to assess vessel patency according to standard lo-cal hospital care (e.g. DUS, MRA)
  • Successfully treated inflow lesions up to TASC B

You may not qualify if:

  • Acute or sub-acute thrombosis
  • In-stent restenosis
  • Rutherford 1-2 and 6
  • Patient who is not fit for follow-up (including contraindication for MRA)
  • Vessel preparation with cutting balloon, lithotripsie, atherectomy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

LKH-Univ. Klinikum Graz

Graz, Austria

Location

Hanusch-Krankenhaus Kardiovaskuläres Zentrum

Vienna, 1140, Austria

Location

SRH Klinikum Karlsbad-Langensteinbach GmbH

Karlsbad (Baden), Baden-Wuettenberg, 76307, Germany

Location

Herzzentrum Bad Krozingen

Bad Krozingen, Baden-Wurttemberg, 73000, Germany

Location

Tepe

Rosenheim, Baden-Wurttemberg, 83022, Germany

Location

Uniklinik Tübingen

Tübingen, Baden-Wurttemberg, 73022, Germany

Location

Elblandklinikum Radebeul Interdisziplinäres Gefäßzentrum Radebeul / Riesa

Radebeul, 01445, Germany

Location

Auckland City Hospital

Grafton, 1023, New Zealand

Location

MeSH Terms

Conditions

Atherosclerosis

Condition Hierarchy (Ancestors)

ArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular Diseases

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Randomization per envelope
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: 120 patients (60 per group) Special balloon (chocolate balloon with a special nitiol cage around the balloon - not drug coated) versus standard uncoated balloon
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief Physician of the Radiology Department

Study Record Dates

First Submitted

August 4, 2020

First Posted

September 4, 2020

Study Start

August 4, 2020

Primary Completion

March 27, 2022

Study Completion

March 27, 2022

Last Updated

September 4, 2020

Record last verified: 2020-08

Locations