Working...
ClinicalTrials.gov
ClinicalTrials.gov Menu

Effect Of Mesenchymal Stem Cells Transfusion on the Diabetic Peripheral Neuropathy Patients .

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT02387749
Recruitment Status : Completed
First Posted : March 13, 2015
Results First Posted : October 11, 2017
Last Update Posted : July 3, 2018
Sponsor:
Information provided by (Responsible Party):
dina mohammed riad, Cairo University

Brief Summary:
A debilitating consequence of diabetes mellitus (DM) is neuropathy which globally affects between 20 -30% of diabetic patients and up to 50% in other studies. The incidence of diabetic neuropathy (DN) is estimated to be up to 45% for type 2 diabetic patients and 59% for type 1diabetic patients in USA.(DN) is the most common complication of DM.The pathophysiology of DN is promoted by several risk factors: micro vascular disease, neural hypoxia, and hyperglycemia-induced effects.At the molecular level, the primary cause of diabetic complications is known to be hyperglycemia, which disrupts cellular metabolism by the formation of reactive oxygen species (ROS).In the aspect of nerve functions, ROS formation increases neuron's susceptibility to damage. In addition, hyperglycemia impedes production of angiogenic and neurotrophic growth factors, which are necessary for normal function of neurons and glial cells and maintenance of vascular structure.No definitive disease-modifying treatments have been to reverse DN. The current treatment focuses on tight glycemic control which can reduce potential risk factors for further nerve damage and DN-associated pain management.In many studies, deficiency of neurotrophic factors and lack of vascular support have been regarded as key factors in the development DN.Mesenchymal stem cells (MSCs) are particularly attractive therapeutic agents because of their ability to self-renew, differentiate into multi lineage cell types, and locally secrete angiogenic cytokines, including basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) .These factors were reported to prompt neovascularization and have support for neural regeneration.It was plausible that MSCs may also be an effective therapeutic agent for the DN treatment through the paracrine effects of bFGF (Shibata et al., 2008) and VEGF and their potential to differentiate into neural cells such as astrocytes, oligodendrocytes , and Schwann cells.The adherent nature of MSCs makes them easy to expand in culture and an attractive candidate to use in cell therapy.Therefore, cell therapy has recently emerged as an attractive therapeutic strategy to meet the needs of both neurotrophic and vascular deficiencies of DN.Proper diagnosis of DN depends on the pattern of sensory loss, reflex test, electrodiagnostic studies, and imaging

Condition or disease Intervention/treatment Phase
Diabetic Peripheral Neuropathy Genetic: mesenchymal stem cells Not Applicable

  Hide Detailed Description

Detailed Description:

Objectives This study will be conducted to investigate the effects of Mesenchymal stem cells (MSC) transfusion on diabetic peripheral neuropathy in diabetic patient. (MSCs) have been reported to secrete various cytokines that exhibit angiogenic and neuro supportive effects.

Study Design Experimental interventional study. phase II clinical trial

Ethical committee approval (was it ethically approved by the department) Internal medicine department Yes

Study Methods

Population of study & disease condition (e.g women with hepatitis, ………) Diabetic patients(type I, type II) with documented peripheral neuropathy as determined by impaired nerve conduction

Inclusion criteria:

(Type I, type II) diabetic patients age range (18-45) years, with diabetic peripheral neuropathy proved by clinical assessment and nerve conduction who did not receive treatment for diabetic peripheral neuropathy.

Exclusion criteria:

Decompensated cardiac, renal or liver disease. Associated autoimmune diseases Associated endocrinal diseases Pregnancy, usage of contraceptive pills or steroids.

Methodology in details The study will be conducted on patients with diabetic peripheral neuropathy collected from internal medicine department(inpatient and out patients, males and females)

All subjects of this study will be submitted to the following :( preparatory visit before (MSCs) transfusion visit.)

  • Thorough clinical assessment as a general assessment of the patient, also assessment of diabetes complications especially diabetic neuropathy. This is including full history and examinations (e.g., pain, sensory loss, ulcers, sensory level, etc….) this preparatory assessment will be done at internal medicine department.
  • Venous blood will be drawn in the morning after an overnight fast in the pre (MSCs) transfusion visit.

Plasma biochemical blood measurements will be determined by standard laboratory procedures in the central lab at clinical pathology department, Kasr Alaini hospital)

  • Fasting blood glucose level, 2 hours postprandial.
  • C-peptide.
  • Hb A1C.
  • Basic Fibroblast Growth Factor (bFGF), vascular endothelial growth factor (VEGF) by ELISA.
  • Complete blood picture.
  • Liver functions in the form of ALT, AST
  • Kidney functions in the form of serum creatinine.

    • fundus examination
    • Nerve conduction study at neurophysiology unit.
    • Bone marrow aspiration of about 90 ml under local anesthesia once at the first visit after preparatory visit mentioned before, the patient will be admitted for 12 hours and will be monitored closely to avoid anaphylaxis (by steroids, anti-allergic treatment), if no complication, will be discharged.

To avoid infection: During bone marrow aspiration, procedure will be done under complete aseptic precautions, placed in sterile tubes containing pre-servative-free heparin (Sigma-Aldrich, St. Louis, USA) Separation and processing of the sample will be done under good manufacture procedure (GMP): Bone Marrow Aspirate (BMA) will be withdrawn under good sterilization of the skin in an isolated area. Processing of the sample will be done in the laminar air flow; all supplies are disposable and sterile.

Technique:

Separation of mononuclear cells:

The bone marrow aspirate will be diluted at a ratio of 6:1 with phosphate buffer saline (PBS) with 2 mM EDTA (30 ml BM aspirate+ 5 ml PBS/EDTA buffer). The MNCs will be separated under aseptic conditions using a Ficoll. Hypaque desity gradient (density 1.077, GibcoBRL, Grand Islan, NY, USA) by centrifugation at 1800 rpm for 20 min then the MNCs will be plated in 40 ml alpha-modi-field Eagle's medium (αMEM), serum free media; mesencult(Mesenchymal stem cell culture),penicillin (100 U/ml),streptomycin(10 mg/ml),0.5 ml amphotericin B(all from Gibco BRL) and 10 ng/ml basic fibroblast growth factor (b-FGF) (R&D system, Minneapolis, MN) and will be incubated at 370 c in a humidified atmosphere containing 5% CO2 (Digirolamo et al.1999).after one day ,non adherent cells will be cultured in the presence of Mesenchymal media for 3 weeks changed every 1 week (cambrex Bioscience ,Nottingham, uk). After reaching 80% confluence the MSCs will be placed in 10 ml saline and will be infused intravenously

Flow cytometry Surface expression of MSCs using anti- (CD271, CD34, CD73, CD90, CD105, CD29) monoclonal antibodies (mAbs) will be analyzed using flow cytometry. MSCs (2X105 cells) will be suspended in PBS containing 1% BSA and will be stained with flurochrome -conjugated mAbs for 20 minutes on ice (anti-mouse mAanti-CD 271, CD34 CD73, CD90, CD105,CD29; BD Bioscience, MN, USA).flow cytometric analysis will be performed using a FACSCaliber (BD bioscience)equipped with cell Quest software.10000 cells will be passed in front of the laser for each sample. Each sample will be analyzed in duplicate. A cut off value at 20% will be set to categorize samples as positive.

Mesenchymal stem cells will be identified by morphology and immunophenotyping in the central lab at clinical pathology department, Kasr Alaini hospital( stem cell lab).

Mesenchymal stem cells transfusion slowly intravenous will be applied after these procedures for the patients after taking their approval and informed consent.

Follow up 3 months after Mesenchymal stem cells transfusion by fasting blood glucose level, 2 hours postprandial, C-peptide, Hb A1C, (bFGF), (VEGF) and nerve conduction at kasr Alaini hospital departments as mentioned before.

Possible Risk (mention if there is any risk or not) Anaphylaxis Infection

Primary outcomes (Most important outcomes to be assessed)

1- Effect of mesenchymal stem cells transfusion on diabetic peripheral neuropathy regarding improvement of clinical symptoms like pain, sensory loss and improvement of nerve conduction.

Secondary outcome parameters (other outcomes to be assessed)

  1. Mesenchymal stem cells being a treatment modality in diabetes complications like peripheral neuropathy, to avoid hazards on patients secondary to diabetic peripheral neuropathy.
  2. Improving of diabetic condition like lowering of blood glucose level, decrease in insulin requirements and improvement of general condition.

Sample size (number of participants included) 10 diabetic patients with diabetic peripheral neuropathy .

Source of funding (is there any source of funds or not) Faculty Of Medicine, Cairo University.

Time plan (when to start/ when expected to finish/ when to publish) At least 20 months


Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 10 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Effect Of Mesenchymal Stem Cells Transfusion on the Peripheral Neuropathy in Diabetic Patients Measured by Nerve Conduction.
Study Start Date : May 2014
Actual Primary Completion Date : August 2016
Actual Study Completion Date : December 2016

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: mesenchymal stem cells
The BM aspirate will be diluted at 6:1 ratio with phosphate buffer saline with 2 ml EDTA (30 ml BM aspirate+ 5 ml PBS/EDTA buffer).MNCs will be separated under aseptic conditions using a Ficoll. Hypaque desity gradient by centrifugation at 1800 rpm for 20 min then the MNCs will be plated in 40 ml(αMEM), serum free media; mesencult(MSCs culture),penicillin (100 U/ml),streptomycin(10 mg/ml),0.5 ml amphotericin B(all from Gibco BRL) and 10 ng/ml basic fibroblast growth factor (b-FGF)(R&D system, Minneapolis, MN) and will be incubated at 370 c in a humidified atmosphere containing 5% CO2 .after one day ,nonadherent cells will be cultured in the presence of Mesenchymal media for 3 weeks changed every week. After reaching 80% confluence the MSCs will be placed in 10 ml saline and infused IV.
Genetic: mesenchymal stem cells
collection of stem cells by bone marrow biopsy from iliac crest, then culture for 1 month , then IV transfusion on 2 sessions to the same patient




Primary Outcome Measures :
  1. Measurement of b-FGF, v-EGF MEASURED BY ELISA [ Time Frame: zero ( before) , 7 DAYS, 90 days ]
    measurement of b-FGF and v-EGF MEASURED BY ELISA before (at zero), and after at (7 days, 90) days after stem cell transfusion to measure the effect of stem cell and its role in nerve regeneration

  2. Change of Nerve Conduction Velocities of Nerves Affected Measured by Nerve Conduction Study. [ Time Frame: base line(zero dya), 90 days after stem cells transfusion. ]
    Measuring nerve conduction velocities(NCV) in m/sec upper and lower limbs nerves(sensory and motor) lower limb nerves : tibial , common peroneal(CP) as motor and sural nerve as sensory upper limb nerves: ulnar nerve as motor and sensory and compare at base line(zero day) and 90 days after stem cells transfusion

  3. Change of Nerve Conduction Latency of Nerves Affected Measured by Nerve Conduction Study [ Time Frame: base line(zero dya), 90 days after stem cells transfusion . ]
    Measuring nerve conduction latency in msec of upper and lower limbs nerves(sensory and motor) lower limb nerves : tibial , common peroneal(CP) as motor and sural nerve as sensory upper limb nerves: ulnar nerve as motor and sensory and compare at base line and 90 days after stem cells transfusion

  4. Change of Nerve Conduction Amplitude of Nerves Affected Measured by Nerve Conduction Study. [ Time Frame: base line(zero dya), 90 days after stem cells transfusion ]

    Measuring nerve conduction amplitudes in uv of upper and lower limbs nerves(sensory and motor).

    lower limb nerves : tibial , common peroneal(CP) as motor and sural nerve as sensory .

    upper limb nerves: ulnar nerve as motor and sensory. and compare at base line and 90 days after stem cells transfusion



Secondary Outcome Measures :
  1. Change of Levels of Fasting Blood Sugar and 2 Hours Post Prandial at Base Line ( Zero Day ) and After (90 Days) After Stem Cells Transfusion [ Time Frame: base line (zero day) and 90 days after stem cells transfusion ]
    fasting, 2 hours postprandial blood sugar measurement before at base line (zero day) and after (90 days) stem cells transfusion as a follow up and comparing the values.

  2. Change of Levels of Glycated Haemoglobin( HA1C) After Stem Cells Transfusion Measured in Percent % [ Time Frame: at base line (zero day) and 90 days after stem cells transfusion ]
    Blood tests before and after stem cells(90 days) transfusion and comparing the values in percent % which is reflecting the patient blood sugar control in the previous 3 months



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • (Type I, type II) diabetic patients age range (18-45) years, with diabetic peripheral neuropathy proved by clinical assessment and nerve conduction who did not receive treatment for diabetic peripheral neuropathy.

Exclusion Criteria:

  • Decompensated cardiac, renal or liver disease. Associated autoimmune diseases Associated endocrinal diseases Pregnancy, usage of contraceptive pills or steroids.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02387749


Sponsors and Collaborators
Cairo University
Investigators
Layout table for investigator information
Study Chair: Mohamed Gamal ElDin Saadi, phd Cairo University
Principal Investigator: Dina Abdelmagid, MD, MRCP UK Cairo University

Publications:

Layout table for additonal information
Responsible Party: dina mohammed riad, Assistant Lecturer of Internal Medicine,faculty of medicine,Kasr Al Ainy hospital, Cairo University
ClinicalTrials.gov Identifier: NCT02387749     History of Changes
Other Study ID Numbers: FACULTY OF MEDICINE,CAIRO U
First Posted: March 13, 2015    Key Record Dates
Results First Posted: October 11, 2017
Last Update Posted: July 3, 2018
Last Verified: July 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

Keywords provided by dina mohammed riad, Cairo University:
diabetic peripheral neuropathy
mesenchymal stem cells

Additional relevant MeSH terms:
Layout table for MeSH terms
Peripheral Nervous System Diseases
Diabetic Neuropathies
Neuromuscular Diseases
Nervous System Diseases
Diabetes Complications
Diabetes Mellitus
Endocrine System Diseases