Clinical trial NCT02805023: BGC101 (EnEPC) Autologous Cell Therapy From Patient's Own Blood for Treatment of Critical Limb Ischemia (CLI)
Official title: Phase 1/2, Open Label & Double Blind Randomized Placebo-controlled Study to Assess the Feasibility of BGC101 (EnEPC) in the Treatment of Peripheral Arterial Disease (PAD) With Critical Limb Ischemia (CLI)
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: PHASE1
PHASE2
Conditions: Chronic Limb-Threatening Ischemia
Peripheral Arterial Disease
Peripheral Vascular Disease
Lead sponsor: BioGenCell Ltd.
Sponsor class: INDUSTRY
Collaborators: name: Laniado Hospital
name: Rabin Medical Center
First posted: 2016-06-17
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Evaluate the feasibility of an autologous cell preparation composed of a mixture of cells enriched for endothelial progenitor cells (EnEPCs) and multipotent adult hematopoietic stem/progenitor cells (HSPC) (BGC101), in the treatment of patients suffering from peripheral arterial disease (PAD) with critical limb ischemia (CLI) who have not responded to optimal pharmacological treatment or control of risk factors and/or had a revascularization failure, and do not have the option of further revascularization treatment.

Detailed description: BGC101 is designed to treat peripheral vascular disease in patients suffering from Critical Leg Ischemia (CLI) also referred to as chronic limb threatening ischemia (CLTI).

This part of the study is designed as a placebo double-blind randomized controlled trial (CRT) assessing the safety and efficacy of BGC101 in 45 eligible subjects in 2 Arms: Arm A: BGC101 treatment and Arm B: Placebo treatment. The Arm A:Arm B ratio is 2:1 A single dose treatment of the personalized cells by intramuscular injections into the affected leg takes less than 10 minutes.

Cells from a standard blood draw (with no pre-treatment, bone marrow aspiration, mobilization or apheresis) are transformed, within a day, into the investigational medicinal product BGC101.

BGC101, intended for autologous use, is a 'ready-to-use' cell suspension in prefilled syringes.

Eligibility criteria: Inclusion criteria:

1. Able to complete the study and comply with instructions.
2. Capable of understanding the purpose of the study and the contents of the informed consent form.
3. Aged at least 18 years.
4. Non-pregnant and non-lactating female patients.
5. Have the clinical indications diagnostic of CLI based on Rutherford category 4-5
6. Have at least one of the hemodynamic indicators of severe peripheral arterial occlusive disease (WIfI ischemia grade 2):

   * Toe pressure \< 40 mmHg
   * Ankle pressure \< 70 mmHg
   * TcPO2 \< 40mmHg
7. Meeting one of the following conditions:

   1. Poor candidate for standard revascularization treatment for peripheral arterial disease due to unfavorable anatomy or high surgical/intervention risk based on the patient's underlying comorbidities.
   2. After undergoing clinically ineffective revascularization. Six weeks or more after undergoing a prior index limb revascularization the patient demonstrates:

      * No improvement in clinical signs and symptoms of CLI as evidenced by lack of improvement in rest pain (when not under increased pain relief) and/or inadequate wound healing or progression of tissue loss despite adequate standard treatment.
      * Ongoing ischemia as defined above in the inclusion criterion 6.
      * The patient is no longer amenable to further interventional or surgical revascularization (see inclusion criterion 7c below).
   3. Four weeks or more after a revascularization failure.

      * Technical Failure of the revascularization (inability to successfully cross or treat the intended target arterial path, thrombosis of the bypass graft or treated artery within 7 days of procedure)
      * Hemodynamic Failure of the revascularization (lack of improvement in toe pressure, ankle pressure, or TcPO2) post-procedure

Exclusion criteria:

1. Severe uncorrected aorto-iliac and/or common femoral artery disease, absent of femoral pulse or monophasic common femoral artery Doppler waveform.
2. Concurrent therapy that, in the Investigator's opinion, would interfere with the evaluation of the feasibility of the study medication.
3. Treatment with any investigational product within the last 6 months or enrollment in any active study involving the use of investigational devices or drugs.
4. Presence of any other condition or circumstance that, in the judgment of the investigator, might negatively impact the outcomes of the treatment under investigation.
5. Prognosis of a major amputation (below or above the knee), within 4 weeks after screening.
6. Severe wound (WIfI wound grade 2 or 3).
7. Significant ongoing infection (WIfI infection grade 2 or 3).
8. Relative or absolute contraindications for intramuscular injections at the intended treatment site, in cases such as severe skin lesions, severe edema or morbid obesity, based on clinician opinion.
9. Patient suffering from active vasculitis
10. Blood transfusions during the preceding 4 weeks (to exclude the potential of non-autologous cells in the harvested blood).
11. Hemoglobin (Hb) less than 9 g/dL.
12. Patient with HbA1C \> 8.5%
13. Myocardial infarction, cerebral infarction , uncontrolled myocardial ischemia or persistent severe heart failure (ejection fraction \[EF\] \< 25%) during the preceding 3 months.
14. Heart failure (New York Heart Association \[NYHA\] 3-4).
15. Significant valvular disease or less than 4 weeks after valve replacement or repair
16. Renal failure (estimated glomerular filtration rate \[eGFR\] \< 30 mL/min/1.73 m², chronic kidney damage stage 4-5).
17. Liver failure, Model for End-stage Liver Disease (MELD) scores 15 and higher.
18. Liver function tests more than three times normal upper limit (normal limits being defined in each local laboratory) (glutamic-oxaloacetic transaminase \[GOT\], glutamic-pyruvic transaminase \[GPT\], alkaline phosphatase \[AlkP\], gamma-glutamyl transferase \[GGT\], lactate dehydrogenase \[LDH\]).
19. Abnormal coagulation tests when not under warfarin (normalized prothrombin time \[PT INR\] \>2).
20. Pregnant or lactating women at entry of study.
21. People who are unwilling to agree to use acceptable methods of contraception during the study.
22. Malignancy within the preceding 3 years, except basal cell carcinoma.
23. Concurrent acute infectious disease with septicemia
24. Chronic infectious disease (human immunodeficiency virus-1 \[HIV-1\], human immunodeficiency virus-2 \[HIV-2\], hepatitis B virus \[HBV\], hepatitis C virus \[HCV\]).
25. Immunodeficiency syndrome.
26. Raynaud's syndrome
27. Systemic treatment with cytotoxic and/or immunosuppressive treatment.
28. Inability to communicate (that may interfere with the clinical evaluation of the patient).
29. Patient unlikely to be available for follow-up.

Primary outcomes:
measure: Safety (Incidence of adverse events)
timeFrame: 12 Months
measure: Efficacy (Improvement of indication signs)
timeFrame: 12 Months
Secondary outcomes:
Other outcomes:
Locations:
city: San Francisco
country: United States
facility: University of San Francisco
state: California
city: New Haven
country: United States
facility: Yale University School of Medicine
state: Connecticut
city: Baltimore
country: United States
facility: Johns Hopkins Hospital
state: Maryland
city: Haifa
country: Israel
facility: Rambam Health Care Campus
city: Netanya
country: Israel
facility: Laniado Hospital
Study officials:
affiliation: Director of Vascular Surgery, Laniado Hospital, IL
name: Shlomo J Baytner, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of California, San Francisco - Division Vascular and Endovascular surgery
name: Michael Conte, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Yale University School of Medicine- Division of Vascular Surgery, Department of Surgery
name: Edouard Aboian, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Division of Vascular Surgery and Endovascular Therapy, Johns Hopkins Hospital
name: Caitlin Hicks, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Director Department of Vascular Surgery & Transplantation Rambam Health Care Campus - IL
name: Tony Karram, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University Hospital Ghent-Thoracale en vasculaire heelkunde
name: Nathalie Moreels, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Boston Medical Center
name: Jeffrey J Siracuse, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Maryland
name: Khanjan Nagarsheth, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: West Georgia Medical Center (Kutaisi Hospital)
name: Paata Meshveliani, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: The Sheba Fund for Health Services and Research, Sheba Medical Center at Tel HaShomer
name: Moshe Halak, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: New York Medical College ("NYMC") and Westchester County Health Care Corporation, operator of Westchester Medical Center.
name: Igor Laskowski, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Beth Israel Deaconess Medical Center (Harvard-Boston)
name: Mark Wyers, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Northwell Health
name: Alisha Oropallo, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Center for Clinical Research Castro Valley- Main site Post Street -Satellite site
name: Alexander Reyzelman, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Porat Y, Assa-Kunik E, Belkin M, Krakovsky M, Lamensdorf I, Duvdevani R, Sivak G, Niven MJ, Bulvik S. A novel potential therapy for vascular diseases: blood-derived stem/progenitor cells specifically activated by dendritic cells. Diabetes Metab Res Rev. 2014 Oct;30(7):623-34. doi: 10.1002/dmrr.2543.