Effects of Benfotiamine on Intraepidermal Nerve Fiber Density (IENFD)
Primary Purpose
Diabetic Neuropathies
Status
Unknown status
Phase
Phase 3
Locations
Germany
Study Type
Interventional
Intervention
Benfotiamine
Placebo for benfotiamine
Sponsored by
About this trial
This is an interventional treatment trial for Diabetic Neuropathies focused on measuring Diabetes, Neuropathy
Eligibility Criteria
Inclusion Criteria:
- Have type 1 or type 2 diabetes mellitus based on the disease diagnostic criteria (WHO) classification on ongoing insulin or/and oral antidiabetic therapy with a stable regimen for the previous 3 months
- Male or female subjects aged between 18 and 75 years, inclusive
- Have an HbA1c level ≤ 9.5% without optimizing potential
- mTCNS (modified Toronto Clinical Neuropathy Score) ≥ (above or equal to) 6) OR (a score on the MNSI (Michigan Neuropathy Screening Instrument)questionnaire of ≥4 or a score on the MNSI examination ≥2.5)
- Medical history without major pathology (with the exception of type 2 diabetes) as judged by the investigator, especially no major peripheral artery disease.
- Body mass index (BMI) between 25 and 45kg/m2, both inclusive
Exclusion Criteria:
- Subjects with secondary forms of diabetes such as due to pancreatitis.
- Current or previous treatment (less than 6 months) with benfotiamine, B-vitamins, vitamin B complex, alpha lipoic acid or actovegin.
- Have any contraindications, known allergy, or hypersensitivity to benfotiamine.
- Have any contraindications, known allergy, or hypersensitivity to local anesthetics.
- Neuropathy by other origin than diabetes.
- Other severe pain that might impair the assessment of neuropathic pain.
- Treatment with more than one of following: tricyclic antidepressants, serotonin norepinephrine reuptake inhibitors, anticonvulsants, class I antiarrhythmics with Na-channel inhibition (mexiletine, flecainid, propafenon and others) or neuroleptics in patients receiving these drugs for neuropathic pain.
Sites / Locations
- Diabetes Schwerpunktpraxis
Arms of the Study
Arm 1
Arm 2
Arm Type
Placebo Comparator
Experimental
Arm Label
Placebo for benfotiamine
Benfotiamine
Arm Description
Placebo for benfotiamine 600 mg/day for the first 3 months followed by 300 mg/day for 9 months
Treatment with benfotiamine 600 mg/day for 3 months followed by 300 mg/day for 9 months
Outcomes
Primary Outcome Measures
Change from baseline in intraepidermal nerve fiber density
Secondary Outcome Measures
Change in neuropathic symptoms
Following questionnaires will be used to assess neuropathic symptoms: modified Toronto Clinical Neuropathy Score and Michigan Neuropathy Screening Instrument
Change in neuropathic deficits
A score will be calculated at each timepoint using the Michigan Neuropathy Screening Instrument
Full Information
NCT ID
NCT01868191
First Posted
May 25, 2013
Last Updated
May 30, 2013
Sponsor
Diabetes Schwerpunktpraxis
Collaborators
Woerwag Pharma GmbH & Co. KG
1. Study Identification
Unique Protocol Identification Number
NCT01868191
Brief Title
Effects of Benfotiamine on Intraepidermal Nerve Fiber Density (IENFD)
Official Title
Effects of Benfotiamine on Intraepidermal Nerve Fiber Density (IENFD)and Diabetic Neuropathy in Subjects With Sensorimotor Diabetic Polyneuropathy: a Double-blind, Randomized, Placebo-controlled Parallel Group Pilot Study Over 12 Months.
Study Type
Interventional
2. Study Status
Record Verification Date
May 2013
Overall Recruitment Status
Unknown status
Study Start Date
July 2013 (undefined)
Primary Completion Date
December 2014 (Anticipated)
Study Completion Date
December 2014 (Anticipated)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Diabetes Schwerpunktpraxis
Collaborators
Woerwag Pharma GmbH & Co. KG
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
The aim of the present study is to assess before, as well as 6 and 12 months following a therapy with benfotiamine the influence of therapy on intraepidermal nerve fiber density (skin biopsy) and neuropathic symptoms and deficits in people with type 1 or 2 diabetes mellitus and diabetic sensomotoric neuropathy.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Neuropathies
Keywords
Diabetes, Neuropathy
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
22 (Anticipated)
8. Arms, Groups, and Interventions
Arm Title
Placebo for benfotiamine
Arm Type
Placebo Comparator
Arm Description
Placebo for benfotiamine 600 mg/day for the first 3 months followed by 300 mg/day for 9 months
Arm Title
Benfotiamine
Arm Type
Experimental
Arm Description
Treatment with benfotiamine 600 mg/day for 3 months followed by 300 mg/day for 9 months
Intervention Type
Drug
Intervention Name(s)
Benfotiamine
Other Intervention Name(s)
Milgamma protekt
Intervention Description
Treatment with 600 mg/day for the first 3 months followed by 300 mg/day for 9 months
Intervention Type
Drug
Intervention Name(s)
Placebo for benfotiamine
Intervention Description
Treatment with placebo for benfotiamine 600 mg/day for the first 3 months followed by 300 mg/day for 9 months
Primary Outcome Measure Information:
Title
Change from baseline in intraepidermal nerve fiber density
Time Frame
6 and 12 months
Secondary Outcome Measure Information:
Title
Change in neuropathic symptoms
Description
Following questionnaires will be used to assess neuropathic symptoms: modified Toronto Clinical Neuropathy Score and Michigan Neuropathy Screening Instrument
Time Frame
3, 6 and 12 months
Title
Change in neuropathic deficits
Description
A score will be calculated at each timepoint using the Michigan Neuropathy Screening Instrument
Time Frame
3, 6 and 12 months
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
75 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Have type 1 or type 2 diabetes mellitus based on the disease diagnostic criteria (WHO) classification on ongoing insulin or/and oral antidiabetic therapy with a stable regimen for the previous 3 months
Male or female subjects aged between 18 and 75 years, inclusive
Have an HbA1c level ≤ 9.5% without optimizing potential
mTCNS (modified Toronto Clinical Neuropathy Score) ≥ (above or equal to) 6) OR (a score on the MNSI (Michigan Neuropathy Screening Instrument)questionnaire of ≥4 or a score on the MNSI examination ≥2.5)
Medical history without major pathology (with the exception of type 2 diabetes) as judged by the investigator, especially no major peripheral artery disease.
Body mass index (BMI) between 25 and 45kg/m2, both inclusive
Exclusion Criteria:
Subjects with secondary forms of diabetes such as due to pancreatitis.
Current or previous treatment (less than 6 months) with benfotiamine, B-vitamins, vitamin B complex, alpha lipoic acid or actovegin.
Have any contraindications, known allergy, or hypersensitivity to benfotiamine.
Have any contraindications, known allergy, or hypersensitivity to local anesthetics.
Neuropathy by other origin than diabetes.
Other severe pain that might impair the assessment of neuropathic pain.
Treatment with more than one of following: tricyclic antidepressants, serotonin norepinephrine reuptake inhibitors, anticonvulsants, class I antiarrhythmics with Na-channel inhibition (mexiletine, flecainid, propafenon and others) or neuroleptics in patients receiving these drugs for neuropathic pain.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Alin O Stirban, MD, PhD
Phone
+4921314018
Ext
486
Email
alin.stirban@profil.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Alin O Stirban, MD, PhD
Organizational Affiliation
Diabetes Schwerpunktpraxis
Official's Role
Principal Investigator
Facility Information:
Facility Name
Diabetes Schwerpunktpraxis
City
Essen
State/Province
NRW
ZIP/Postal Code
45136
Country
Germany
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Helga Zeller-Stefan, MD
Phone
+492011788892
Email
helga.zeller@gmx.de
First Name & Middle Initial & Last Name & Degree
Alin O Stirban, MD, PhD
First Name & Middle Initial & Last Name & Degree
Helga Zeller-Stefan, MD, PhD
12. IPD Sharing Statement
Learn more about this trial
Effects of Benfotiamine on Intraepidermal Nerve Fiber Density (IENFD)
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