Diabetic Peripheral NeuropathyNCT02387749
Effect Of Mesenchymal Stem Cells Transfusion on the Diabetic Peripheral Neuropathy Patients .
A study testing mesenchymal stem cells in people with Diabetic Peripheral Neuropathy, run by Cairo University.
Trial 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… Read more about this study
- Who is it for?
- Ages 18 to 45 years
- Conditions the study is for
- Diabetic Peripheral Neuropathy
- What is being tested?
- mesenchymal stem cells
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 10 participants
- Where
- No sites listed yet
- Study dates
- May 2014to Dec 2016
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- (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.
Who cannot join
- Decompensated cardiac, renal or liver disease. Associated autoimmune diseases Associated endocrinal diseases Pregnancy, usage of contraceptive pills or steroids.
About this study
Official title: Effect Of Mesenchymal Stem Cells Transfusion on the Peripheral Neuropathy in Diabetic Patients Measured by Nerve Conduction.
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
Read the 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)
- Mesenchymal stem cells being a treatment modality in diabetes complications like peripheral neuropathy, to avoid hazards on patients secondary to diabetic peripheral neuropathy.
- 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
- Conditions
- Diabetic Peripheral Neuropathy
- Being tested
- mesenchymal stem cells
- Keywords
- diabetic peripheral neuropathy, mesenchymal stem cells
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
mesenchymal stem cellsGenetic
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
| Study group | Role | What they receive |
|---|---|---|
| mesenchymal stem cells | Experimental | 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. Receives: Genetic: mesenchymal stem cells |
What is being measured
The primary outcome is the main question the study is designed to answer.
Measurement of b-FGF, v-EGF MEASURED BY ELISA
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
Measured: zero ( before) , 7 DAYS, 90 days
Change of Nerve Conduction Velocities of Nerves Affected Measured by Nerve Conduction Study.
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
Measured: base line(zero dya), 90 days after stem cells transfusion.
Change of Nerve Conduction Latency of Nerves Affected Measured by Nerve Conduction Study
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
Measured: base line(zero dya), 90 days after stem cells transfusion .
Change of Nerve Conduction Amplitude of Nerves Affected Measured by Nerve Conduction Study.
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
Measured: base line(zero dya), 90 days after stem cells transfusion
Secondary outcomes (2)
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
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.
Measured: base line (zero day) and 90 days after stem cells transfusion
Change of Levels of Glycated Haemoglobin( HA1C) After Stem Cells Transfusion Measured in Percent %
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
Measured: at base line (zero day) and 90 days after stem cells transfusion
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Mar 2015 (estimated)
- Study startMay 2014
- Primary completionAug 2016
- Study completionDec 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for Diabetic Peripheral NeuropathyStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, dina mohammed riad, Cairo University
- Investigators
- Mohamed Gamal ElDin Saadi, phd, Study chair, Cairo UniversityDina Abdelmagid, MD, MRCP UK, Principal investigator, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02387749
- Sponsor's protocol ID
- FACULTY OF MEDICINE,CAIRO U
- Status last verified
- Jul 2018
- First submitted
- 1 Mar 2015
- Last updated
- 3 Jul 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- Individual data sharing
- Undecided
Publications
Jackson L, Jones DR, Scotting P, Sottile V. Adult mesenchymal stem cells: differentiation potential and therapeutic applications. J Postgrad Med. 2007 Apr-Jun;53(2):121-7. doi: 10.4103/0022-3859.32215.
PubMed 17495381Keilhoff G, Stang F, Goihl A, Wolf G, Fansa H. Transdifferentiated mesenchymal stem cells as alternative therapy in supporting nerve regeneration and myelination. Cell Mol Neurobiol. 2006 Oct-Nov;26(7-8):1235-52. doi: 10.1007/s10571-006-9029-9. Epub 2006 Jun 16.
PubMed 16779672Kinnaird T, Stabile E, Burnett MS, Epstein SE. Bone-marrow-derived cells for enhancing collateral development: mechanisms, animal data, and initial clinical experiences. Circ Res. 2004 Aug 20;95(4):354-63. doi: 10.1161/01.RES.0000137878.26174.66.
PubMed 15321945Morbach S, Lutale JK, Viswanathan V, Mollenberg J, Ochs HR, Rajashekar S, Ramachandran A, Abbas ZG. Regional differences in risk factors and clinical presentation of diabetic foot lesions. Diabet Med. 2004 Jan;21(1):91-5. doi: 10.1046/j.1464-5491.2003.01069.x.
PubMed 14706061Nakae M, Kamiya H, Naruse K, Horio N, Ito Y, Mizubayashi R, Hamada Y, Nakashima E, Akiyama N, Kobayashi Y, Watarai A, Kimura N, Horiguchi M, Tabata Y, Oiso Y, Nakamura J. Effects of basic fibroblast growth factor on experimental diabetic neuropathy in rats. Diabetes. 2006 May;55(5):1470-7. doi: 10.2337/db05-1160.
PubMed 16644707Rathur HM, Boulton AJ. Recent advances in the diagnosis and management of diabetic neuropathy. J Bone Joint Surg Br. 2005 Dec;87(12):1605-10. doi: 10.1302/0301-620X.87B12.16710. No abstract available.
PubMed 16326870Shibata T, Naruse K, Kamiya H, Kozakae M, Kondo M, Yasuda Y, Nakamura N, Ota K, Tosaki T, Matsuki T, Nakashima E, Hamada Y, Oiso Y, Nakamura J. Transplantation of bone marrow-derived mesenchymal stem cells improves diabetic polyneuropathy in rats. Diabetes. 2008 Nov;57(11):3099-107. doi: 10.2337/db08-0031. Epub 2008 Aug 26.
PubMed 18728233Adler AI, Stratton IM, Neil HA, Yudkin JS, Matthews DR, Cull CA, Wright AD, Turner RC, Holman RR. Association of systolic blood pressure with macrovascular and microvascular complications of type 2 diabetes (UKPDS 36): prospective observational study. BMJ. 2000 Aug 12;321(7258):412-9. doi: 10.1136/bmj.321.7258.412.
PubMed 10938049Digirolamo CM, Stokes D, Colter D, Phinney DG, Class R, Prockop DJ. Propagation and senescence of human marrow stromal cells in culture: a simple colony-forming assay identifies samples with the greatest potential to propagate and differentiate. Br J Haematol. 1999 Nov;107(2):275-81. doi: 10.1046/j.1365-2141.1999.01715.x.
PubMed 10583212Dalla Paola L, Faglia E. Treatment of diabetic foot ulcer: an overview strategies for clinical approach. Curr Diabetes Rev. 2006 Nov;2(4):431-47. doi: 10.2174/1573399810602040431.
PubMed 18220646Aldali F, Deng C, Nie M, Chen H. Advances in therapies using mesenchymal stem cells and their exosomes for treatment of peripheral nerve injury: state of the art and future perspectives. Neural Regen Res. 2025 Nov 1;20(11):3151-3171. doi: 10.4103/NRR.NRR-D-24-00235. Epub 2024 Oct 22.
PubMed 39435603
Study at a glance
From the registry record, last updated by the sponsor on 3 Jul 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect Of Mesenchymal Stem Cells Transfusion on the Peripheral Neuropathy in Diabetic Patients Measured by Nerve Conduction.
- ClinicalTrials.gov ID
- NCT02387749
- Acronym / sponsor ID
- FACULTY OF MEDICINE,CAIRO U
- Conditions
- Diabetic Peripheral Neuropathy
- Keywords
- diabetic peripheral neuropathy, mesenchymal stem cells
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- May 2014
- Primary completion
- Aug 2016 (actual)
- Study completion
- Dec 2016 (actual)
- First posted
- 13 Mar 2015 (estimated)
- Results
- Posted 11 Oct 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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
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)
- Mesenchymal stem cells being a treatment modality in diabetes complications like peripheral neuropathy, to avoid hazards on patients secondary to diabetic peripheral neuropathy.
- 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
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| mesenchymal stem cells | Experimental | Genetic: mesenchymal stem cellsThe 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. |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- (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.
Key exclusion criteria (1 listed)
- Decompensated cardiac, renal or liver disease. Associated autoimmune diseases Associated endocrinal diseases Pregnancy, usage of contraceptive pills or steroids.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| mesenchymal stem cellscollection 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 | Genetic | mesenchymal stem cells |
Primary outcome
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
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
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
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
2 secondary outcomes
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
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
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jul 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 17495381Jackson L, Jones DR, Scotting P, Sottile V. Adult mesenchymal stem cells: differentiation potential and therapeutic applications. J Postgrad Med. 2007 Apr-Jun;53(2):121-7. doi: 10.4103/0022-3859.32215.
- Background: PubMed 16779672Keilhoff G, Stang F, Goihl A, Wolf G, Fansa H. Transdifferentiated mesenchymal stem cells as alternative therapy in supporting nerve regeneration and myelination. Cell Mol Neurobiol. 2006 Oct-Nov;26(7-8):1235-52. doi: 10.1007/s10571-006-9029-9. Epub 2006 Jun 16.
- Background: PubMed 15321945Kinnaird T, Stabile E, Burnett MS, Epstein SE. Bone-marrow-derived cells for enhancing collateral development: mechanisms, animal data, and initial clinical experiences. Circ Res. 2004 Aug 20;95(4):354-63. doi: 10.1161/01.RES.0000137878.26174.66.
- Background: PubMed 14706061Morbach S, Lutale JK, Viswanathan V, Mollenberg J, Ochs HR, Rajashekar S, Ramachandran A, Abbas ZG. Regional differences in risk factors and clinical presentation of diabetic foot lesions. Diabet Med. 2004 Jan;21(1):91-5. doi: 10.1046/j.1464-5491.2003.01069.x.
- Background: PubMed 16644707Nakae M, Kamiya H, Naruse K, Horio N, Ito Y, Mizubayashi R, Hamada Y, Nakashima E, Akiyama N, Kobayashi Y, Watarai A, Kimura N, Horiguchi M, Tabata Y, Oiso Y, Nakamura J. Effects of basic fibroblast growth factor on experimental diabetic neuropathy in rats. Diabetes. 2006 May;55(5):1470-7. doi: 10.2337/db05-1160.
- Background: PubMed 16326870Rathur HM, Boulton AJ. Recent advances in the diagnosis and management of diabetic neuropathy. J Bone Joint Surg Br. 2005 Dec;87(12):1605-10. doi: 10.1302/0301-620X.87B12.16710. No abstract available.
- Background: PubMed 18728233Shibata T, Naruse K, Kamiya H, Kozakae M, Kondo M, Yasuda Y, Nakamura N, Ota K, Tosaki T, Matsuki T, Nakashima E, Hamada Y, Oiso Y, Nakamura J. Transplantation of bone marrow-derived mesenchymal stem cells improves diabetic polyneuropathy in rats. Diabetes. 2008 Nov;57(11):3099-107. doi: 10.2337/db08-0031. Epub 2008 Aug 26.
- Background: PubMed 10938049Adler AI, Stratton IM, Neil HA, Yudkin JS, Matthews DR, Cull CA, Wright AD, Turner RC, Holman RR. Association of systolic blood pressure with macrovascular and microvascular complications of type 2 diabetes (UKPDS 36): prospective observational study. BMJ. 2000 Aug 12;321(7258):412-9. doi: 10.1136/bmj.321.7258.412.
- Background: PubMed 10583212Digirolamo CM, Stokes D, Colter D, Phinney DG, Class R, Prockop DJ. Propagation and senescence of human marrow stromal cells in culture: a simple colony-forming assay identifies samples with the greatest potential to propagate and differentiate. Br J Haematol. 1999 Nov;107(2):275-81. doi: 10.1046/j.1365-2141.1999.01715.x.
- Background: PubMed 18220646Dalla Paola L, Faglia E. Treatment of diabetic foot ulcer: an overview strategies for clinical approach. Curr Diabetes Rev. 2006 Nov;2(4):431-47. doi: 10.2174/1573399810602040431.
- Derived from this study: PubMed 39435603Aldali F, Deng C, Nie M, Chen H. Advances in therapies using mesenchymal stem cells and their exosomes for treatment of peripheral nerve injury: state of the art and future perspectives. Neural Regen Res. 2025 Nov 1;20(11):3151-3171. doi: 10.4103/NRR.NRR-D-24-00235. Epub 2024 Oct 22.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Mohamed Gamal ElDin Saadi, phd study chair
Cairo University
Dina Abdelmagid, MD, MRCP UK principal investigator
Cairo University
Questions about this trial
What is this clinical trial studying?
A study testing mesenchymal stem cells in people with Diabetic Peripheral Neuropathy, run by Cairo University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 11 Oct 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Measurement of b-FGF, v-EGF MEASURED BY ELISA (time frame: zero ( before) , 7 DAYS, 90 days). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02387749, which also lists 11 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2018.