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Oral BBR-012 in the Treatment of Diabetic Foot Ulcers, Proof of Concept Study (BBR-012)

Primary Purpose

Diabetic Foot Ulcer

Status
Unknown status
Phase
Phase 2
Locations
United Kingdom
Study Type
Interventional
Intervention
isoniazide
placebo
Sponsored by
Bridge BioResearch Ltd.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diabetic Foot Ulcer focused on measuring diabetic foot ulcer

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Main Inclusion Criteria:

  • Aged ≥18
  • Diabetes mellitus
  • Ischaemic or neuro-ischaemic Diabetic Foot Ulcer below the malleolus, but not wholly on the sole of the foot (minimum size: 1 cm x 1 cm)
  • Body Mass Index(BMI) ≤40 kg/m2
  • Women of childbearing potential must use acceptable methods of birth control
  • Written informed consent to participate in the study
  • Patients must be able to speak English fluently and to understand English

Main Exclusion Criteria:

  • Any uncontrolled illnesses (e.g. active malignancy, vasculitis) that, in the opinion of the investigator, would interfere with interpreting the results of the study
  • Infected Diabetic Foot Ulcer based on the IDSA guidelines, i.e. presence of purulent secretions or at least two of the manifestations of inflammation (erythema, warmth, swelling or induration and pain or tenderness), and for whom, in the investigator's judgment, intravenous or oral antibiotic therapy is required
  • Active osteomyelitis
  • Wholly plantar Diabetic Foot Ulcer
  • Suspected gangrenous tissue of the affected limb that cannot be removed with a single debridement
  • Diabetic Foot Ulcer associated with prosthetic material or a device
  • Received any potentially effective systemic antibiotic therapy for more than 24 hours during the 72-hour period before the screening visit
  • Is receiving, or has received within the 14 days prior to the screening visit, any concomitant topical wound therapy (e.g., topical antimicrobial therapy, topical debriding agent, topical growth factor, topical skin replacement, or hyperbaric oxygen)
  • Has received systemic corticosteroids, immunosuppressive agents, radiation therapy or chemotherapy within the 30 days prior to the screening visit.
  • Hepatic impairment, renal impairment (defined as estimated glomerular filtration rate <10 mL/minute/1.73m2), hypersensitivity to isoniazid.
  • High risk for tuberculosis, e.g. HIV positive, are immunosuppressed, or have active malignancy
  • Symptoms of active or latent tuberculosis (based on specific history, physical examination, Interferon Gamma Release Assay (IGRA) test and chest X-Ray)
  • Known or suspected drug or alcohol abuse or positive drugs of abuse test.
  • Participating in any clinical study the 12 weeks before the screening visit
  • Donation of more than 450 mL of blood in the 3 months before the screening visit, or 1200 mL blood in the 12 months before the screening visit.
  • History of severe hypersensitivity or ongoing hypersensitivity that might affect the patient's suitability for the study (e.g. hypersensitivity to wound dressings), as judged by the investigator.
  • History of allergy to, or insensitivity to, local anaesthetics
  • Use of any prescribed or non-prescribed (over-the-counter) medication, including herbal medication (e.g., St. Johns Wort) that could possibly interfere with the objectives of this study (e.g., could affect the closure of chronic dermal ulceration), during 2 weeks (or 5 half-lives of the compound whichever is the longer) before the anticipated first dose of study medication. Occasional paracetamol for pain relief (maximum 2 g per 24 hours) and adrenergic nasal spray for relief of nasal congestion are allowed
  • Having received BBR-012 or isoniazid within the 6 months prior to the screening visit
  • Bleeding disorder or history of increased bleeding

Sites / Locations

  • Tameside Hospital NHS Foundation TrustRecruiting
  • Bradford Royal Infirmary , Bradford Teaching Hospitals NHS TrustRecruiting
  • Department of Wound Healing, School of Medicine, Cardiff UniversityRecruiting
  • Chorley & South Ribble Hospital, Lancashire Teaching Hospitals TrustRecruiting
  • Croydon University HospitalRecruiting
  • Royal Infirmary of Edinburgh, Lothian University Hospital TrustRecruiting
  • Gloucester Royal Hospital NHS Foundation TrustRecruiting
  • Manchester Royal Infirmary, University Department of MedicineRecruiting
  • Nottingham City HospitalRecruiting
  • Derriford Hospital, Plymouth Hospitals NHS TrustRecruiting
  • Southampton Hospitals NHS TrustRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

BBR-012

Placebo

Arm Description

Outcomes

Primary Outcome Measures

Rate of healing of diabetic foot ulcers (% reduction in area from baseline)

Secondary Outcome Measures

Rate of healing (change from baseline) as assessed by various scoring criteria: IDSA, modified ASEPSIS score, TEXAS Diabetic wound score, composite severity score and global clinical assessment
Effect of BBR-012 on the level of ischemia (change from baseline as measured by tcpO2)
Effect of BBR-012 on microbiological outcome (presence of pathogens and outcome as compared to baseline)
Safety and tolerability of BBR-012 as assessed by reported adverse events and safety laboratory parameters

Full Information

First Posted
April 12, 2011
Last Updated
December 22, 2011
Sponsor
Bridge BioResearch Ltd.
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1. Study Identification

Unique Protocol Identification Number
NCT01342497
Brief Title
Oral BBR-012 in the Treatment of Diabetic Foot Ulcers, Proof of Concept Study
Acronym
BBR-012
Official Title
A Randomised, Double-Blind, Repeat-Dose, Placebo-Controlled Phase IIa Proof of Concept Study to Investigate the Safety and Efficacy of Oral BBR-012 in Combination With Standard Medical Care in Diabetic Patients With Complicated Skin Ulceration on the Foot (Diabetic Foot Ulcer)
Study Type
Interventional

2. Study Status

Record Verification Date
December 2011
Overall Recruitment Status
Unknown status
Study Start Date
July 2011 (undefined)
Primary Completion Date
August 2012 (Anticipated)
Study Completion Date
August 2012 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Bridge BioResearch Ltd.

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The aim of this Clinical Proof of Principle study is to evaluate the effect of BBR-012 on the healing of complicated diabetic foot ulcers.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Foot Ulcer
Keywords
diabetic foot ulcer

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
60 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
BBR-012
Arm Type
Experimental
Arm Title
Placebo
Arm Type
Placebo Comparator
Intervention Type
Drug
Intervention Name(s)
isoniazide
Intervention Description
Tablets, dosing 3 times daily, 12 weeks
Intervention Type
Drug
Intervention Name(s)
placebo
Intervention Description
tablets, dosing 3 times daily, 12 weeks
Primary Outcome Measure Information:
Title
Rate of healing of diabetic foot ulcers (% reduction in area from baseline)
Time Frame
4, 8 and 12 weeks
Secondary Outcome Measure Information:
Title
Rate of healing (change from baseline) as assessed by various scoring criteria: IDSA, modified ASEPSIS score, TEXAS Diabetic wound score, composite severity score and global clinical assessment
Time Frame
week 1, 2, 3, 4, 6, 8, 10, 12 and 13-14(follow up)
Title
Effect of BBR-012 on the level of ischemia (change from baseline as measured by tcpO2)
Time Frame
4, 8 and 12 weeks
Title
Effect of BBR-012 on microbiological outcome (presence of pathogens and outcome as compared to baseline)
Time Frame
week 1, 2, 3, 4, 6, 8, 10, 12 and 13-14(follow up)
Title
Safety and tolerability of BBR-012 as assessed by reported adverse events and safety laboratory parameters
Time Frame
from baseline visit to week 14

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Main Inclusion Criteria: Aged ≥18 Diabetes mellitus Ischaemic or neuro-ischaemic Diabetic Foot Ulcer below the malleolus, but not wholly on the sole of the foot (minimum size: 1 cm x 1 cm) Body Mass Index(BMI) ≤40 kg/m2 Women of childbearing potential must use acceptable methods of birth control Written informed consent to participate in the study Patients must be able to speak English fluently and to understand English Main Exclusion Criteria: Any uncontrolled illnesses (e.g. active malignancy, vasculitis) that, in the opinion of the investigator, would interfere with interpreting the results of the study Infected Diabetic Foot Ulcer based on the IDSA guidelines, i.e. presence of purulent secretions or at least two of the manifestations of inflammation (erythema, warmth, swelling or induration and pain or tenderness), and for whom, in the investigator's judgment, intravenous or oral antibiotic therapy is required Active osteomyelitis Wholly plantar Diabetic Foot Ulcer Suspected gangrenous tissue of the affected limb that cannot be removed with a single debridement Diabetic Foot Ulcer associated with prosthetic material or a device Received any potentially effective systemic antibiotic therapy for more than 24 hours during the 72-hour period before the screening visit Is receiving, or has received within the 14 days prior to the screening visit, any concomitant topical wound therapy (e.g., topical antimicrobial therapy, topical debriding agent, topical growth factor, topical skin replacement, or hyperbaric oxygen) Has received systemic corticosteroids, immunosuppressive agents, radiation therapy or chemotherapy within the 30 days prior to the screening visit. Hepatic impairment, renal impairment (defined as estimated glomerular filtration rate <10 mL/minute/1.73m2), hypersensitivity to isoniazid. High risk for tuberculosis, e.g. HIV positive, are immunosuppressed, or have active malignancy Symptoms of active or latent tuberculosis (based on specific history, physical examination, Interferon Gamma Release Assay (IGRA) test and chest X-Ray) Known or suspected drug or alcohol abuse or positive drugs of abuse test. Participating in any clinical study the 12 weeks before the screening visit Donation of more than 450 mL of blood in the 3 months before the screening visit, or 1200 mL blood in the 12 months before the screening visit. History of severe hypersensitivity or ongoing hypersensitivity that might affect the patient's suitability for the study (e.g. hypersensitivity to wound dressings), as judged by the investigator. History of allergy to, or insensitivity to, local anaesthetics Use of any prescribed or non-prescribed (over-the-counter) medication, including herbal medication (e.g., St. Johns Wort) that could possibly interfere with the objectives of this study (e.g., could affect the closure of chronic dermal ulceration), during 2 weeks (or 5 half-lives of the compound whichever is the longer) before the anticipated first dose of study medication. Occasional paracetamol for pain relief (maximum 2 g per 24 hours) and adrenergic nasal spray for relief of nasal congestion are allowed Having received BBR-012 or isoniazid within the 6 months prior to the screening visit Bleeding disorder or history of increased bleeding
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Andrew Boulton, Professor
Phone
0161 276 4406
Email
aboulton@med.miami.edu
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Andrew J Boulton, Professor
Organizational Affiliation
Manchester Royal Infirmary
Official's Role
Principal Investigator
Facility Information:
Facility Name
Tameside Hospital NHS Foundation Trust
City
Ashton-under-Lyne
ZIP/Postal Code
OL6 9RW
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Bradford Royal Infirmary , Bradford Teaching Hospitals NHS Trust
City
Bradford
ZIP/Postal Code
BD9 6RJ
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Department of Wound Healing, School of Medicine, Cardiff University
City
Cardiff
ZIP/Postal Code
CF14 4XN
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Chorley & South Ribble Hospital, Lancashire Teaching Hospitals Trust
City
Chorley
ZIP/Postal Code
PR7 1PP
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Croydon University Hospital
City
Croydon
ZIP/Postal Code
CR7 7YE
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Royal Infirmary of Edinburgh, Lothian University Hospital Trust
City
Edinburgh
ZIP/Postal Code
EH16 4SA
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Gloucester Royal Hospital NHS Foundation Trust
City
Gloucester
ZIP/Postal Code
GL1 3NN
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Manchester Royal Infirmary, University Department of Medicine
City
Manchester
ZIP/Postal Code
M13 9WL
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Nottingham City Hospital
City
Nottingham
ZIP/Postal Code
NG5 1PB
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Derriford Hospital, Plymouth Hospitals NHS Trust
City
Plymouth
ZIP/Postal Code
PL6 8DH
Country
United Kingdom
Individual Site Status
Recruiting
Facility Name
Southampton Hospitals NHS Trust
City
Southampton
ZIP/Postal Code
SO16 6YD
Country
United Kingdom
Individual Site Status
Recruiting

12. IPD Sharing Statement

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Oral BBR-012 in the Treatment of Diabetic Foot Ulcers, Proof of Concept Study

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