Clinical trial • Phase I • Cardiology
Fibrin for Critical limb ischemia
Phase I trial of Fibrin for Critical limb ischemia. 100 participants.
Overview
- Trial Therapeutic Area
- Cardiology
- Trial Disease
- Critical limb ischemia
- Trial Stage
- Phase I
- Drug Modality
- Peptide/protein/enzyme
Key dates
- Initial CTIS Submission Date
- 19-11-2024
- First CTIS Authorization Date
- 28-01-2025
Trial design
Phase I trial across 1 site in Poland.
- Target Sample Size
- 100
Eligibility
Recruits 100 No vulnerable population selected. Informed consent is required: 'To finalize ICF for participation in the study and post-operative rehabilitation.' Participants are adults (aged 18 to under 90); assent not applicable..
- Pregnancy Exclusion
- Women: pregnancy or positive pregnancy test at the time of inclusion in the study, and non-use of contraception (mechanical or hormonal), or declaration of non-use of contraception (mechanical or hormonal, except in cases of physical sterilization) during the study for premenopausal women. Women in the lactation period.
- Vulnerable Population
- No vulnerable population selected. Informed consent is required: 'To finalize ICF for participation in the study and post-operative rehabilitation.' Participants are adults (aged 18 to under 90); assent not applicable.
Inclusion criteria
- {"criterion_text":"- To finalize ICF for participation in the study and post-operative rehabilitation."}
- {"criterion_text":"- Symptomatic occlusive atherosclerosis of the lower limb arteries at stages 4 and 5 of the Rutherford scale (critical limb ischemia) confirmed clinically and hemodynamically."}
- {"criterion_text":"- Patients aged 18 years and older, under 90 years old."}
- {"criterion_text":"- Patients without absolute contraindications for undergoing revascularization procedures."}
- {"criterion_text":"- Expected average survival time: more than 3 years (patients will be eligible for the study if their expected perioperative mortality is <5% and the probability of predicted 2-year survival is >50%—such patients will be classified as having medium or high surgical risk)."}
Exclusion criteria
- {"criterion_text":"- To not accept the ICF to participate in the clinical study."}
- {"criterion_text":"- Inability to qualify the patient as a tissue donor due to history or diagnostic test results aimed at detecting contraindications for being a tissue or cell donor, including the presence of biological pathogens as defined by the Act on the Procurement, Storage, and Transplantation of Cells, Tissues, and Organs (Journal of Laws 2005 No. 169 item 1411) and included in the donor qualification form for the Tissue and Cell Bank (Attachment BT01)."}
- {"criterion_text":"- Projected life time shorter than 3 years."}
- {"criterion_text":"- Active cancer (5-year washout period after treatment completion)."}
- {"criterion_text":"- Other comorbidities that shorten the expected survival time to <3 years."}
- {"criterion_text":"- Neurological or psychiatric conditions that, in the investigator's opinion, would prevent adequate cooperation."}
- {"criterion_text":"- Abnormal hematological and biochemical parameters: Hemoglobin: <9.5 g/dl, Platelet count: <50,000/mm³, Bilirubin level: 3 times above the permissible upper limit of normal, AST: 3 times above the permissible upper limit of normal, ALT: 3 times above the permissible upper limit of normal, GFR: below 30 ml/min/1.73 m² (renal failure)."}
- {"criterion_text":"- Absolute contraindications for the use of contrast agents (iodine-based, gadolinium-based, or 18FDG (18F-fluorodeoxyglucose))."}
- {"criterion_text":"- Participation in any other clinical trial or therapeutic experiment (washout period of no less than 120 days)"}
- {"criterion_text":"- Women: pregnancy or positive pregnancy test at the time of inclusion in the study, and non-use of contraception (mechanical or hormonal), or declaration of non-use of contraception (mechanical or hormonal, except in cases of physical sterilization) during the study for premenopausal women. Women in the lactation period."}
Endpoints
Primary endpoints
- {"endpoint_text":"- Primary endpoint: the type and frequency of adverse reactions and events assessed during the study and at the final visit.","definition_or_measurement_approach":"Assessed during the study and at the final visit (type and frequency of adverse reactions and events)."}
Secondary endpoints
- {"endpoint_text":"- Secondary endpoints: mortality rate at the final visit, amputation rate at the final visit, time to revascularization (continuous assessment), amputation-free survival time (continuous assessment), muscle perfusion in imaging studies (at the final visit compared to baseline), ankle-brachial index (at the final visit compared to baseline), change in ischemia scores (Rutherford, WiFI) (at the final visit compared to baseline), and quality of life score at the final visit.","definition_or_measurement_approach":"Mortality rate and amputation rate measured at final visit; time-to-event outcomes (time to revascularization, amputation-free survival) assessed continuously; muscle perfusion by imaging compared to baseline; ankle-brachial index compared to baseline; changes in Rutherford/WIfI scores compared to baseline; quality of life score at final visit."}
Recruitment
- Planned Sample Size
- 100
- Recruitment Window Months
- 48
- Consent Approach
- Informed consent required from participants: 'To finalize ICF for participation in the study and post-operative rehabilitation.' Consent provided by the adult participant (aged 18 to under 90). ICF document available (L1_SIS and ICF). Translations/participant information available in Polish.
Geography
- Total Number Of Sites
- 1
- Total Number Of Participants
- 100
Poland
- Earliest CTIS Part Ii Submission Date
- 17-01-2025
- Latest Decision Or Authorization Date
- 09-02-2026
- Processing Time Days
- 388
- Number Of Sites
- 1
- Number Of Participants
- 100
Sites
- Site Name
- Uniwersyteckie Centrum Kliniczne Warszawskiego Uniwersytetu Medycznego
- Department Name
- Katedra i Klinika Chirurgii Ogólnej, Naczyniowej, Endokrynologicznej i Transplantacyjnej
- Principal Investigator Name
- Rafał Maciąg
- Principal Investigator Email
- rafal.maciag1@wum.edu.pl
- Contact Person Name
- Rafał Maciąg
- Contact Person Email
- rafal.maciag1@wum.edu.pl
Sponsor
Primary sponsor
- Full Name
- Medical University Of Warsaw
- Organisation Type
- Educational Institution
- Country Of Registered Address
- Poland
Investigational products
- Investigational Product Name
- Leukocyte-Platelet Rich Fibrin
- Active Substance
- Fibrin
- Modality
- Peptide/protein/enzyme
- Routes Of Administration
- Intramuscular injection
- Route
- Intramuscular injection
- Maximum Dose
- 19.6 ml
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