ClinicalTrials.gg
Status unknownNCT03423732Updated Apr 9, 2021

Cardiovascular Clinical Project to Evaluate the Regenerative Capacity of CardioCell in Patients With No-option Critical Limb Ischemia (N-O CLI)

A Phase 2/3 interventional study of CardioCell and Placebos in Critical Limb Ischemia, sponsored by John Paul II Hospital, Krakow. Status unknown at 2 sites in Poland. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-04-09.

Sponsored by John Paul II Hospital, Krakow · Phase 2/3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Apr 2021), so the status shown — last known as Active, not recruiting — may be out of date.

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Phase
Phase 2/3
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The main objective of the CIRCULATE project is to compare the clinical outcomes of CardioCell administration in treatment of ischemic damages of cardiovascular system with control group, who will be treated by the administration of placebo during the sham procedure.

Read the detailed description

It is planned to enroll 105 patients into N-O CLI trial with randomization into active (CardioCell) therapy and sham procedure/placebo administration with 2:1 ratio.

The primary research question of this project is to check if the administration of CardioCell could improve the clinical outcomes in patients with N-O CLI.

There are several secondary questions, defined by secondary endpoints, e.g.: if the investigated treatment is possible to administered, if the investigated treatment is safe in each studied indication and way of CardioCell administration, if it is possible to define any selected subgroup in which the treatment results are significantly different than in whole group.

02

Conditions studied

  • Critical Limb Ischemia
03

In context

Chronic Limb-Threatening Ischemia

357 studies on the registry are indexed under Chronic Limb-Threatening Ischemia; 72 are open to participants now.

This study's enrollment of 50 is above the median of 41 across 240 interventional studies indexed under Chronic Limb-Threatening Ischemia.

Browse Chronic Limb-Threatening Ischemia studies →

Lead sponsor

John Paul II Hospital, Krakow is the lead sponsor of 16 studies on the registry; 6 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Patients able to walk
  • Male and female patients, aged 18-80 years
  • No-option CLI (definition: exhausted revascularization options including surgery or endovascular treatment) in Rutherford stage 4-5
  • In case of bilateral N-O CLI, the limb with shorter claudication distance will be treated
  • Presence of adequate inflow (patent iliac and common femoral arteries)
  • Run-off through at least one (even partially seen) below-the-knee (BTK) artery
  • Signed

Exclusion criteria

Exclusion Criteria:

  • Moderate or severe immunodeficiency
  • Acute or chronic bacterial or viral infectious disease
  • Soft tissue disease or local infection in a place of required artery puncture
  • Pregnancy or breastfeeding
  • Any objective or subjective reason for inability to attend follow-up visits
  • Females of , who does not want to use a highly effective method of
  • Females of childbearing potential who does not have a menstrual period confirmed and a negative highly sensitive urine or serum pregnancy test
  • Participation in any other clinical research study that has not reached the primary efficacy endpoint or otherwise would interfere with the patient's participation in this project
  • \< 1 year
  • Any concurrent disease or condition that, in the opinion of the investigator, would make the patient unsuitable for participation in the project
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Active comparator
    Active Group

    Patients randomized to the active treatment group will receive CardioCell consist 30 000 000 cells (suspended in 20 ml of 0.9% NaCl and 5% albumin); 15 000 000 via common femoral artery injection and 15 000 000 via intramuscular injections above the knee (ATK, 6 injection sites) and below the knee (BTK, 6 injection sites).

    Drug: CardioCell

  • Placebo comparator
    Control Group

    Patients randomized to the placebo group will receive Placebos consist 0.9% NaCl and 5% albumin injections (in the same volumes as CardioCell) injections in the same manner.

    Drug: Placebos

Interventions

  • DrugCardioCell

    Patients in the N-O CLI trial will receive a full dose of IMP three times during the trial: at baseline, after 45 days post index administration and after 3 months post index administration. IMP will be administered into femoral artery and intramuscularly with 50:50 proportion. The intramuscularly dose will be administered into muscles above and below the knee in 50:50 proportion.

    Also known as: CardioCell administration

  • DrugPlacebos

    Patients randomized to the control group will receive 0.9% NaCl and 5% albumin injections (in the same volume as CardioCell) in the same manner. Control group will receive the same amount of fluid used for WJMSCs preparation, without cells.

    Also known as: Placebo administration

06

What researchers measure

Primary outcomes

  1. Change in pain-free walking distance

    Change in pain-free walking distance (6M FU vs index evaluation) between two groups (active vs placebo therapy).

    Time frame: 6 month FU

Secondary outcomes

  1. Amputation-free survival period

    Amputation-free survival period evaluation of treated leg at 6 month and 1 year FU.

    Time frame: 6 month and 1 year FU.

  2. Ulcer-free survival

    Ulcer-free survival (in patients without ulceration at baseline evaluation) of treated leg in period evaluation at 6 month and 1 year FU.

    Time frame: 6 month and 1 year FU

  3. Ulcer-extension free survival

    Ulcer-extension free survival (in patients with ulceration in the beginning of the trial) of treated leg in period evaluation at 6 month and 1 year FU.

    Time frame: 6 month and 1 year FU

  4. Change in tissue oxygen/CO2 tension

    Change in tissue oxygen/CO2 tension, assessed by NIRS method at each trial evaluation point.

    Time frame: 45 days, 3 month, 6 month and 1 year FU

  5. An improvement of tissue perfusion

    An improvement of tissue perfusion assessed in MRI at each trial evaluation point.

    Time frame: 45 days, 3 month, 6 month and 1 year FU

  6. Change in transcutaneous pressure of O2

    Change in transcutaneous pressure of O2 (tcpO2) between two groups (active vs placebo therapy) at each trial evaluation point.

    Time frame: 45 days, 3 month, 6 month and 1 year FU

  7. Change in ABI score

    Change in ABI score at each trial evaluation point. The ankle-brachial index (ABI) is the ratio of the blood pressure at the ankle to the blood pressure in the upper arm and is calculated by dividing the systolic blood pressure at the ankle by the systolic blood pressure in the arm. An ABI between and including 0.9 and 1.2 is considered normal, while a lesser than 0.9 indicates peripheral arterial disease. An ABI value of 1.3 or greater is also considered abnormal, and suggests calcification of the walls of the arteries and incompressible vessels. ABI score progression towards the normal range is considered as a better outcome.

    Time frame: 45 days, 3 month, 6 month and 1 year FU

  8. Quality of life improvement, assessed by SF-36 questionnaire

    Quality of life improvement, assessed by SF-36 questionnaire or other dedicated for investigated population at each trial evaluation point.

    Time frame: 45 days, 3 month, 6 month and 1 year FU

07

Study locations

2 sites
  • The John Paul II Hospital
    Cracovia, 31-202, Poland
  • Leszek Giec Upper-Silesian Medical Centre of the Silesian Medical University in Katowice
    Katowice, 40-635, Poland
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Apr 2018 (actual). Primary completion is estimated for May 2021, 37 months after the start.

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

Registered
Jan 25, 2018
First posted
Feb 6, 2018
StartActual
Apr 19, 2018
Primary completionEst.
May 31, 2021
CompletionEst.
Sep 30, 2021
Last update
Apr 9, 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 Apr 9, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03423732
Lead sponsor
John Paul II Hospital, Krakow
Collaborators
KCRI, National Center for Research and Development, Poland
Responsible party
Sponsor
First posted
Feb 6, 2018
Start date
Apr 19, 2018
Primary completion
May 31, 2021 (estimated)
Completion
Sep 30, 2021 (estimated)
Last update
Apr 9, 2021

Study contacts

Mariusz Trystuła, MD
principal investigator · John Paul II Hospital

Oversight

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

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

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