UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056711
Receipt number R000064770
Scientific Title The relationship between the clinical outcomes of EVT and the Adductor Canal
Date of disclosure of the study information 2025/04/01
Last modified on 2025/01/14 15:43:48

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Basic information

Public title

The relationship between the clinical outcomes of EVT and the Adductor Canal

Acronym

P1 study

Scientific Title

The relationship between the clinical outcomes of EVT and the Adductor Canal

Scientific Title:Acronym

P1 study

Region

Japan


Condition

Condition

lower extremity arterial disease (LEAD)

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Endovascular treatment (EVT) of lower extremity arterial disease (LEAD) has improved dramatically in recent years due to advances in the equipment available for treatment, thus we naw can select treatment strategies according to patient and lesion characteristics. In particular, there are many treatment options for EVT of the femoro-popliteal artery region, including drug-coated balloons (DCB), drug-eluting stents (DES), bare metal stents (BMS) and stent grafts (SG), and many previous studies have reported the factors influencing outcomes. Factors that may affected clinical outcomes of EVT specific to lower limb vessels include walking and joint flexion/extension, which can cause vessel torsion, and the patient's level of activities of daily living (ADL) and the location of the lesion may also affect outcomes. The popliteal artery is anatomically defined as the artery from the adductor canal hiatus to the branching of the anterior tibial artery, and is further subdivided into P1 region from the adductor canal hiatus to the suprapatellar border, P2 region at the joint and P3 region below that. It has been reported that vascular torsion occurs predominantly in the P1 region, where the superficial femoral artery fixed in the adductor canal transitions to the popliteal artery, and previous studies have in fact reported reduced outcomes with stents and DCBs in the popliteal artery region. However fewer papers mention the relationship between the adductor canal and clinical outcomes. Although the joint flexion of the popliteal artery is in the P2 region, assuming that the main cause of arterial restenosis is torsion, the P1 region is responsible for worsening clinical outcomes in the popliteal artery, and investigating promising treatment options for this region will improve the clinical outcomes of EVT in the popliteal artery region. The aim of the study is to identify differences in clinical outcomes and desirable treatment devices in each resion (P1/P2/P3).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Primary patency

Key secondary outcomes

major adverse limb events (MALE), target lesion revascularization (TLR), target vessel revascularization (TVR), re-occlusion rate


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients aged 20 years and over who have undergone endovascular treatment for lower extremity artery disease within the observation period. Patients whose target lesion was chronic total occlusion or stenosis of only the popliteal artery.

Key exclusion criteria

Patients whose target lesion was in-stent restenosis or occlusion. Patients with non-atherosclerotic disease including supplemental popliteal artery syndrome, acute limb infarction or popliteal artery aneurysm. Pregnant patients.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Kan
Middle name
Last name Zen

Organization

University Hospital, Kyoto Prefectural University of Medicine

Division name

Department of Cardiology

Zip code

6028566

Address

Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan

TEL

075-251-5111

Email

k-zen@koto.kpu-m.ac.jp


Public contact

Name of contact person

1st name Kan
Middle name
Last name Zen

Organization

University Hospital, Kyoto Prefectural University of Medicine

Division name

Department of Cardiology

Zip code

602-8566

Address

Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan

TEL

075-251-5111

Homepage URL


Email

k-zen@koto.kpu-m.ac.jp


Sponsor or person

Institute

University Hospital, Kyoto Prefectural University of Medicine

Institute

Department

Personal name



Funding Source

Organization

Kyoto Prefectural University of Medicine

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto Prefectural University of Medicine Clinical Ethics Committee

Address

Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan

Tel

0752515337

Email

rinri@koto.kpu-m.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 04 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 03 Month 31 Day

Date of IRB


Anticipated trial start date

2025 Year 04 Month 01 Day

Last follow-up date

2026 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Nothing special.


Management information

Registered date

2025 Year 01 Month 14 Day

Last modified on

2025 Year 01 Month 14 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064770