ISRCTN ISRCTN29921809
DOI https://doi.org/10.1186/ISRCTN29921809
Submission date
07/10/2025
Registration date
12/10/2025
Last edited
07/10/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Diabetic foot disease is a serious complication of diabetes that can lead to poor blood flow in the legs and feet, making wounds difficult to heal and increasing the risk of amputation. This study looked at whether a new combination of treatments could improve outcomes for people with diabetic foot problems caused by narrowed arteries below the knee. Researchers compared two treatment approaches to see which worked better in helping wounds heal and reducing the need for further procedures or amputations.

Who can participate?
The study involved patients who were admitted to hospital with diabetic foot disease and had narrowed arteries below the knee.

What does the study involve?
Participants were divided into two groups. One group received a standard treatment using a drug-coated balloon to open up blocked arteries. The other group received a newer combination treatment that used a laser to remove blockages before using the drug-coated balloon. All participants were followed for one year to monitor their recovery and outcomes.

What are the possible benefits and risks of participating?
Patients in the study may benefit from more consistent treatment and follow-up care, which could lead to better healing and fewer complications. There were no specific risks reported for taking part in the study.

Where is the study run from?
The study was carried out in a hospital setting, starting when patients were admitted for diabetic foot treatment.

When is the study starting and how long is it expected to run for?
January 2022 to May 2024.

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Changbao Yan, 624934107@qq.com

Contact information

Mr Changbao Yan
Public, Scientific, Principal investigator

No.82, Xinhuanan Road, Tongzhou District
Beijing
101100
China

ORCiD logoORCID ID 0000-0001-6770-5150
Phone +86 1069543901
Email 624934107@qq.com

Study information

Study designProspective interventional non randomized
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleCombined interventional treatment for diabetic foot with below-the-knee arterial lesions: a prospective cohort study
Study objectivesTo evaluate the clinical effect of combined interventional therapy for diabetic foot (DF) with below-the-knee (BTK) arterial lesions.
Ethics approval(s)

Approved 21/12/2021, Ethics Committee of Beijing Luhe Hospital (No.82, Xinhuanan Road, Tongzhou District, Beijing, 101100, China; +86 01069543901; luheyiyuan123@163.com), ref: 2021-LHKY-064-02

Health condition(s) or problem(s) studiedDiabetic foot with below-the-knee arterial lesions
InterventionA prospective cohort study was conducted of 138 patients with DF complicated with BTK arterial lesions. They were assigned to two groups: the control group was treated by drug-coated balloon angioplasty, while the experimental group underwent excimer laser ablation combined with drug-coated balloon angioplasty. All patients were followed up for 1 year.
Intervention typeProcedure/Surgery
Primary outcome measureMeasured using patient records at 1 year:
1. Primary patency rate
2. Target lesion revascularization rate
Secondary outcome measuresMeasured using patient records at 1year:
1. Primary wound healing rate
2. Secondary wound healing rate
3. Primary wound healing rate without revascularization
4. Wound healing time
5. Amputation rate
6. Mortality rate
Overall study start date08/10/2021
Completion date31/05/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit58 Years
Upper age limit71 Years
SexAll
Target number of participants152
Total final enrolment138
Key inclusion criteria1. DF ulcers of Wagner grades 1–4
2. Required lower extremity arterial interventional revascularization treatment.
Key exclusion criteria1. Non-ischemic diabetic foot
2. Unwilling to participate in the trial
Date of first enrolment01/01/2022
Date of final enrolment31/05/2023

Locations

Countries of recruitment

  • China

Study participating centre

Beijing Luhe hospital
No.82, Xinhuanan Road, Tongzhou District
Beijing
101100
China

Sponsor information

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/12/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlannde publication in a peer-reviewed journal
IPD sharing planThe datasets generated duringand/oranalysedduring the current study will be available uponrequest from (Changbao Yan /Email: 624934107@qq.com)

Editorial Notes

07/10/2025: Trial's existence confirmed by Ethics Committee of Beijing Luhe Hospital.