ClinicalTrials.gg
Status unknownNCT05018949Updated Aug 24, 2021

Evaluation of Post-Angioplasty Outcomes

An observational study in Critical Limb Ischemia and Peripheral Arterial Disease, sponsored by Singapore General Hospital. Status unknown at 1 site in Singapore. Open to participants aged 21 Years to 99 Years. Per ClinicalTrials.gov, last updated 2021-08-24.

Sponsored by Singapore General Hospital · Observational

The sponsor has not verified this record recently (last verified Aug 2021), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Other
Enrollment
1,000
Ages
21 Years to 99 Years
Sex
All
01

Study summary

There is no hard and fast rule guiding the clinical decision between angioplasty and amputation. As such, this decision is greatly dependant on each clinician's experience and preference as to whether treatment should be conservative or aggressive.

Angioplasty can help restore blood flow and long-term patency of the blood vessels can help prevent major surgeries, such as amputation which affects patient's quality of life. However, some of these patients do not benefit from angioplasty and eventually had to undergo amputation. On the other hand, there are patients that undergo amputation, but may stand to benefit from angioplasty. Hence, it is essential to identify patients that will likely benefit from angioplasty to increase limb salvage rate. Many studies performed have also concluded that before amputations are performed, surgeons should consider angioplasty procedures.

Through a medical record review of patients that have undergone angioplasty to evaluate post-angioplasty outcomes, we hope to identify factors that potentially affects these outcomes. Ultimately with a better understanding of these factors and their impact on angioplasty outcomes, a predictive model or guideline can be developed to identify patients that stands to benefit from angioplasty. Such a model can help clinicians to better counsel patients on the risk and benefits, alternatives and prognosis. Patients can also make a better informed decision regarding their treatment

02

Conditions studied

  • Critical Limb Ischemia
  • Peripheral Arterial Disease
03

In context

Chronic Limb-Threatening Ischemia

348 studies on the registry are indexed under Chronic Limb-Threatening Ischemia; 70 are open to participants now.

This study's planned enrollment of 1,000 is above the median of 123 across 99 observational studies indexed under Chronic Limb-Threatening Ischemia.

Browse Chronic Limb-Threatening Ischemia studies →

Lead sponsor

Singapore General Hospital is the lead sponsor of 270 studies on the registry; 58 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 99 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

All patients that have successfully undergone lower limb angioplasty procedures

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • All patients admitted into SGH Department of Vascular Surgery, and have successfully undergone angioplasty

Exclusion criteria

Exclusion Criteria:

  • Minors under age of 21
05

Study design

Observational model
Cohort
Time perspective
Other
Enrollment
1,000 participants (estimated)
Target follow-up
12 Months
Patient registry
Yes

Groups and cohorts

  • Patients who have undergone LL angioplasty

    Patients who have undergone LL angioplasty are enrolled in study for a medical records review.

    Procedure: Lower limb angioplasty

Interventions

  • ProcedureLower limb angioplasty

    Patients who have undergone LL angioplasty are enrolled in study for a medical records review.

06

What researchers measure

Primary outcomes

  1. Amputation Free Survival

    Freedom from major limb amputation

    Time frame: 12 months post-op

  2. Freedom from target lesion revascularization

    Freedom from any interventions to the index treated lesion

    Time frame: 12 months post-op

  3. Primary Patency

    Patency of the treated lesion at index procedure

    Time frame: 12 months

  4. Wound healing rates

    Healing of index wounds and whether there is any recurrence

    Time frame: 12 months

07

Study locations

1 of 1 sites recruiting
  • Singapore General Hospital
    Singapore, 169856, Singapore
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2019 (actual). Primary completion is estimated for Dec 2023, 59 months after the start.

Of 45 non-industry observational studies under Chronic Limb-Threatening Ischemia, half reached primary completion within 41 months of starting (the median), counting those still running; a quarter within 22 and three quarters within 60. This study's planned 59 months is above that.

Counting every sponsor, half of 50 studies reached it within 34 months; a quarter within 22 and three quarters within 59.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 22, 2021
First posted
Aug 24, 2021
StartActual
Jan 17, 2019
Primary completionEst.
Dec 31, 2023
CompletionEst.
Dec 31, 2023
Last update
Aug 24, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 24, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05018949
Responsible party
Sponsor
First posted
Aug 24, 2021
Start date
Jan 17, 2019
Primary completion
Dec 31, 2023 (estimated)
Completion
Dec 31, 2023 (estimated)
Last update
Aug 24, 2021

Study contacts

Charyl Yap
Contact
Charyl.yap.j.q@sgh.com.sg
6576 7986
Tang Tjun Yip
principal investigator · Singapore General Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

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