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Clinical Trials/NCT01868191
NCT01868191UnknownPhase 3

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.

Diabetes Schwerpunktpraxis1 site in 1 country22 target enrollmentStarted: July 2013Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 3
Sponsor
Enrollment
22
Locations
1
Primary Endpoint
Change from baseline in intraepidermal nerve fiber density

Study Overview

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.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)

Eligibility Criteria

Ages
18 Years to 75 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

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.

Arms & Interventions

Placebo for benfotiamine

Placebo Comparator

Placebo for benfotiamine 600 mg/day for the first 3 months followed by 300 mg/day for 9 months

Intervention: Placebo for benfotiamine (Drug)

Benfotiamine

Experimental

Treatment with benfotiamine 600 mg/day for 3 months followed by 300 mg/day for 9 months

Intervention: Benfotiamine (Drug)

Outcomes

Primary Outcomes

Change from baseline in intraepidermal nerve fiber density

Time Frame: 6 and 12 months

Secondary Outcomes

  • Change in neuropathic deficits(3, 6 and 12 months)
  • Change in neuropathic symptoms(3, 6 and 12 months)

Investigators

Sponsor
Diabetes Schwerpunktpraxis
Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Ovidiu Alin Stirban

Dr. med.

Diabetes Schwerpunktpraxis

Study Sites (1)

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