Safety and Efficacy of Vasculera® in the Healing of Diabetic Skin Ulcers

Safety and Efficacy of Vasculera® in the Healing of Diabetic Skin Ulcers and Improving Insulin Sensitivity: A Pilot Study

This study is designed to evaluate if Vasculera, a marketed medical food product, will improve the rate and extent of healing of diabetic ulcers.

Study Overview

• Status: Terminated
• Conditions: Diabetic Ulcers
• Intervention / Treatment: Dietary supplement: Vasculera

Detailed Description

This study is designed primarily to compare the rate and extent of healing of diabetic ulcers in people treated with or without Vasculera while maintaining a standard of care (SOC) therapeutic regimen. The study will also examine the effects of Vasculera on anti-diabetic medication requirements and markers of microvascular disease. Subjects will be stratified by whether or not they receive hyperbaric oxygen therapy (HBOT) as part of their SOC treatment regimen. In addition, the study will examine the ability of Vasculera to improve glycemic control and reduce anti-diabetic medication requirements (oral or injectable insulin) and will gather preliminary information on the ability of Vasculera to improve microvascular blood flow and oxygen delivery peripheral tissues including ulcerative lesions.

• Study Type: Interventional
• Enrollment (Anticipated): 40
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Texas
    • San Antonio, Texas, United States, 78205
      • Nix Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 25 years to 85 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Either gender, between 25-85 years old
2. Diagnosis of type II diabetes
3. Presence of a grade I-III skin ulcer of diabetic origin and at least 1 cm in diameter for more than 60 days and not improving despite standard conventional care without HBOT
4. Treatment with oral anti-diabetic agents and/or insulin for at least 1 year. Dose must be stable for at least 3 months.
5. Not using any other product for control of serum glucose including medical foods, neutraceuticals or dietary supplements
6. Consistent dietary habits
7. Able to understand and sign informed consent document

Exclusion Criteria:

1. age less than 25 years or greater than 85 years
2. Skin ulceration of other than diabetic etiology
3. diagnosis of type I diabetes
4. use of any other serum glucose modifying agent, other than stable prescribed anti-diabetic medication regimen within 12 weeks of screening visit
5. use of nutritional supplements specifically for anti-oxidative purposes (e.g., multivitamins allowed)
6. history of collagen vascular disease
7. taking corticosteroids in any dose, by any route
8. no history of therapy with pentoxyphylline or cilostazol for 2 months prior to the screening visit and for the duration of the study
9. history of any intestinal disease that might interfere with absorption of study products
10. any active malignancy or history of malignancy within 3 years of the screening visit,, except basal cell carcinoma or cervical carcinoma in situ curatively treated
11. screening AST, ALT, alkaline phosphatase, bilirubin >1.3 times the upper limit of normal for the reference laboratory
12. serum creatinine >3.0
13. diabetes mellitus not on stable therapy for at least 3 months
14. history of chronic pancreatitis
15. uncontrolled hypertension (DBP >100, SPB >160)
16. unstable angina, other uncontrolled cardiac disease including NYHA CHF Class III or IV
17. pregnant or lactating women
18. known history of allergies to citrus, diosmin, or Alka-4 Complex
19. history of substance abuse, or any psychiatric condition that may impair the subject's ability to comply with the study requirements.
20. Consumption of more than one (1) unit of alcohol daily. For the purposes of this study a unit of alcohol is defined as 12 oz. of beer, 6 oz. of wine or 1.5 oz. of hard spirits
21. Concomitant use of chlorzoxazone, diclofenac or metronidazole
22. any medical condition that, in the opinion of the investigator, might put the subject at undue risk or might interfere with the subject's ability to participate in the study
23. participation in another clinical trial within 30 days or 7 half-lives of the prior study product, whichever is longer, of the screening visit

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: placebo	Dietary supplement: Vasculera; Vasculera 630 mg b.i.d.; Other Names: diosmin
Experimental: Vasculera; diosmin	Dietary supplement: Vasculera; Vasculera 630 mg b.i.d.; Other Names: diosmin

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Rate of healing of diabetic ulcers measured by ulcer size	days to complete healinh	4 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Efficacy of diabetic control measure by reduction of oral anti-diabetic medication and/or insulin requirements	anti-diabetic medication doses	4 months
Reduction on peripheral edema measured by leg circumferance	leg circumference	4 months
lower extremity skin oxygenation measured by trancutaneous oximetry	transcutaneous oximetry at toes	4 months

Collaborators and Investigators

• Sponsor: Primus Pharmaceuticals
• Investigators: Study Director: Robert M Levy, MD, Primus Pharmaceuticals, Inc

Study record dates

Study Major Dates

• Study Start: February 1, 2015
• Primary Completion (Actual): September 1, 2015
• Study Completion (Actual): October 1, 2015

Study Registration Dates

• First Submitted: February 4, 2015
• First Submitted That Met QC Criteria: February 6, 2015
• First Posted (Estimate): February 11, 2015

Study Record Updates

• Last Update Posted (Actual): December 13, 2017
• Last Update Submitted That Met QC Criteria: December 11, 2017
• Last Verified: October 1, 2015

More Information

Terms related to this study

• Keywords: diabetes type II; diabetic ulcers
• Additional Relevant MeSH Terms: Pathologic Processes; Skin Diseases; Ulcer; Skin Ulcer
• Other Study ID Numbers: PVD-01