Cord Blood Cells in Patients With Acute SCI

Spinal Cord Injury, Acute Clinical Trial

— SUBSCI II  

Official title:

Systemic Administration of Allogenic Mononuclear Cord Blood Cells in Patients With Acute Severe Contusion Spinal Cord Injury: Safety and Efficiency Evaluation, Stages I/II

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05693181
• Other study ID #: 007-2022
• Status: Recruiting
• Phase: Phase 1/Phase 2
• Start date: December 5, 2022
• Est. completion date: August 30, 2025

Study information

• Verified date: January 2023
• Source: Sklifosovsky Institute of Emergency Care
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a prospective, single-blinded, single-center, randomized, comparative, interventional clinical study of systemic mononuclear multiple allogenic cord blood cells administration safety and efficiency in patients having acute severe contusion spinal cord injury (ASIA A/B), phase I/II

Description:

Phase I/II of the SUBSCI II (Systemic Umbilical Cord Blood Administration in Patients with Acute Severe Contusion Spinal Cord Injury II) study is focused on safety and primary efficacy of multiple systemic infusions of allogeneic unrelated human umbilical cord blood mononuclear cells in patients with severe acute spinal cord contusion having severe neurologic deficit (ASIA A/B).

In a previous clinical study (SUBSCI I/IIa) complete safety and significant efficiency of systemic administration of human umbilical cord blood cells (HUCBCs) was demonstrated. Current study is established to confirm and verify the obtained results in a larger group of patients.

SUBSCI II study includes 80 patients with acute severe contusion spinal cord injury (SCI) and American Spinal Injury Association (ASIA) level A/B deficit divided into 2 groups (experimental and control groups, 40 patients in each). Patients will be treated with 4 infusions of group-matched and rhesus-matched cord blood samples following primary decompressive and stabilizing surgery within 7 days after SCI. All patients will be followed up for 12 months after SCI.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 80
• Est. completion date: August 30, 2025
• Est. primary completion date: December 31, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

• Both males and females, 18 to 75 years old

• Contusion spinal cord injury (SCI) at cervical, thoracic or upper lumbar (cone level) levels

• admission by 7 days post-SCI

• spinal cord contusion confirmed using MRI (T1- and T2-weighted images, STIR)

• ASIA A/B neurological deficit

• identical level of neurological deficit at admission and at the moment of patient inclusion

• primary decompressive and stabilizing surgery performed within 5 days post-SCI and prior to the first cell sample infused

• patient is ready to participate and fulfill the requirements of the study protocol

• informed consent signed by the patient or his legal representative

Exclusion Criteria:

• motor function preserved in lower limbs at admission (LEMS > 0 points) corresponding to ASIA C, D or E deficit level

• any spinal cord injury different from contusion (tear, defibering, concussion, SCIWORA, SCIWONA) confirmed using MRI

• severe combined trauma (ISS > 35 points)

• inability to perform primary decompressive and stabilizing surgery within 5 days post-SCI and prior to the first cell sample infused

• persistent systolic arterial pressure (AP) > 185 mmHg or diastolic AP > 105 mmHg or need of aggressive AP lowering using systemic antihypertensive medication at the moment of patient inclusion

• acute myocardial infarction

• blood glucose level < 3.5 Mmol/L or >21 Mmol/L or ineffective antidiabetic therapy for 24 hours

• acute or deterioration of chronic diseases of central nervous system (CNS) (e.g. stroke, non-traumatic subarachnoid hemorrhages and others at the discretion of investigator)

• hypotension or cardiovascular shock AND systolic AP < 90 mmHg OR need for intensive systemic inotropic therapy at the moment of patient inclusion

• objective need for artificial ling ventilation (ALV) at admission or prior to the stage I surgery

• acute kidney failure or deterioration of chronic kidney failure (creatinin level > 250 mumol/L or carbamide level > 25 Mmol/L)

• liver failure (general bilirubin level > 25 mumol/L, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels > 4 times exceeding upper reference limit)

• other significant disorders of vital functions

• acute of deterioration of chronic diseases of internal organs preventing from cell samples infusion

• autoimmune diseases (active or anamnestic) preventing from cell samples infusion

• allergic reactions of any type for any component of HUCBC samples

• pregnancy or lactation

• significant surgeries or severe traumas within 3 months prior to patient inclusion

• acute or chronic infection diseases (tuberculosis, lues, HIV, hepatitis B, hepatitis C etc.)

• moderate or severe hematological and/or oncohematological diseases preventing from the cell samples infusion

• any malignant tumors (both operated and not operated) or benign tumors (not operated or not totally removed) at the moment of patient inclusion

• neurological and/or psychiatric diseases preventing patient from complete understanding of study protocol or fulfillment of the study protocol requirements

• other reasons preventing patient from complete understanding of study protocol or fulfillment of the study protocol requirements

• patient's participation in any other clinical trials or studies within 6 months prior to inclusion

• immunosuppressive therapy obtained by the patient for any reason at admission

• allergic reaction for full blood or blood component transfusion in the past

• need for extracorporal detoxication methods application (hemodialysis, plasmapheresis, sorption etc.)

• bone marrow or internal organs (both donor and relative) transplantation in the past

• patient's participation in any studies applying regenerative technologies (grow factors, cytokines, cell therapy, gene therapy etc.) within 1 year prior to inclusion

• patient's rejection to sign the informed consent

• any other reasons preventing patient's inclusion according to the investigator's opinion

Related Conditions & MeSH terms

• Spinal Cord Injuries
• Spinal Cord Injury, Acute

Intervention

Biological:
• Multiple systemic (i.v.) administration of allogenic non-related group- and rhesus-compatible mononuclear cord blood cells
Each HUCBCs sample contain 500 +/- 50 x 10*6 allogenic non-related group- and rhesus-compatible mononuclear cord blood cells

Other:
• Control vehicle (sterile saline)
Sterile saline infusion in control patients

Locations

Country	Name	City	State
Russian Federation	N.V. Sklifosovsky Emergency Care Institute	Moscow

Sponsors (3)

Lead Sponsor	Collaborator
Sklifosovsky Institute of Emergency Care	K.L. Hetagurov North-Osetian State University, State-Financed Health Facility "Samara Regional Medical Center Dinasty"

Country where clinical trial is conducted

Russian Federation, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Adverse events	All adverse events (AEs) are registered within follow-up period. All registered AEs are classified using CTCAE classification and relation to the performed therapy.	Continuously for 12 months post-SCI
Primary	Motor function	Evaluation of motor function dynamics in upper (UEMS), lower (LEMS) and all (GEMS) limbs	Change from Baseline 12 months post-SCI
Primary	Neurological deficit	Evaluation of general neurological deficit dynamics using ASIA scale	Change from Baseline 12 months post-SCI
Secondary	Sensory function	Evaluation of pain, tactile, temperature and proprioceptive sensory function dynamics below SCI level and comparison between two groups	Change from Baseline 12 months post-SCI
Secondary	Neuropathic pain syndrome	Evaluation of neuropathic pain syndrome dynamics and comparison between two groups	12 months post-SCI
Secondary	Independent verticalization and motion ability	Evaluation of Independent verticalization and motion ability dynamics and comparison between two groups	Change from Baseline 12 months post-SCI
Secondary	Limb muscle spasticity	Evaluation of limb muscle spasticity level dynamics using modified Ashworth or Tardieu scales and comparison between two groups	Change from Baseline 12 months post-SCI
Secondary	Psychological status	Evaluation of psychological status dynamics using Beck depression and anxiety scales and comparison between two groups	Change from Baseline 12 months post-SCI
Secondary	Pelvic functions	Evaluation of pelvic functions dynamics (bladder fulfillment feeling, independent urination ability, urodynamic examination)	Change from Baseline 12 months post-SCI
Secondary	Life quality	Evaluation of life quality level in two groups using FIM (Functional Independence Measurement) scale and SF36 questionnaire	Change from Baseline 12 months post-SCI
Secondary	Electrophysiology parameters	Assessment of electrophysiology objective parameters (electroneuromyography parameters with transcranial magnetic stimulation - full block, partial block or no block; somatosensory evoked potentials, motor evoked potentials)	12 months post-SCI
Secondary	Cell immunization	Assessment of patient's immunization to infused cell samples	12 months post-SCI