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A Feasibility Trial to Investigate the Safety and Between-group Effect Size of Stimulan-VG and Standard of Care (SoC) in Participants With Diabetic Foot Osteomyelitis of the Forefoot. (BLADE-VG2)

Primary Purpose

Diabetic Foot Osteomyelitis

Status
Recruiting
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Stimulan-VG
Systemic Antibiotics
Sponsored by
Biocomposites Ltd
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diabetic Foot Osteomyelitis focused on measuring feasibility, between-group effect size, surgical debridement, systemic antibiotic

Eligibility Criteria

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

Inclusion Criteria:

  1. Participant must be ≥18 years of age inclusive, at the time of signing the informed consent.
  2. Participant has a current diagnosis and is being treated for diabetes mellitus, type 1 or type 2
  3. Participant who requires surgical debridement, but not to the extent that it requires amputation of the toe, metatarsal or ray
  4. Participant who has confirmed presence of diabetic foot osteomyelitis (DFO) of the forefoot as evidenced by at least 3 out of 5 of the following:

    1. Positive PTB (probe-to-bone) test
    2. Presence of draining sinus presumed to be from underlying bone
    3. Plain X-ray highly suggestive of or most compatible with osteomyelitis
    4. Ulcer present for greater than 30 days
    5. Substantially elevated serum marker for inflammation
  5. Participant is male or female
  6. A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies: Not a woman of childbearing potential (WOCBP) OR A WOCBP who agrees to follow the contraceptive guidance in from enrollment up to Week 52.

Exclusion Criteria:

  1. Diabetic foot ulcer on the tip of toes or in any location other than the forefoot (proximal to the metatarsal neck)
  2. Acute amputation site (< 30 days post-operatively)
  3. Ulcers present for more than 12 months duration
  4. Significant peripheral arterial disease: Ankle brachial index ≤ 0.7 mm Hg OR toe pressure ≤ 40 mm Hg OR transcutaneous oximetry ≤ 40 mm Hg
  5. Any significant immunocompromising disease
  6. Evidence of systemic infection/sepsis associated with osteomyelitis of the forefoot
  7. Malignancy that might affect trial interpretation of outcomes or the participant's ability to complete the trial
  8. Any other type of infection that would require ongoing systemic antibiotic therapy during trial enrollment
  9. History of muscular disorders, such as myasthenia gravis or parkinsonism
  10. Any conditions with known hypercalcemia (> 10.3 mg/dl) or posing a significant risk for developing hypercalcemia
  11. Antibiotics to manage acute diabetic foot ulcer (DFU) infection within 24 hours prior to screening
  12. Antibiotic therapy exceeding 10 days duration within two weeks prior to the washout period
  13. Immunologically suppressed or has received systemic administration of corticosteroids at a dose of >10 mg prednisone (or corticosteroid equivalent) for more than 14 consecutive days within the 90 days prior to informed consent
  14. Participant has a positive real-time reverse transcriptase polymerase chain reaction (RT-PCR) test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has clinical signs and symptoms consistent with SARS-CoV-2 infection, or positive SARS-CoV-2 test result, had severe course of COVID-19 (extracorporeal membrane oxygenation [ECMO], mechanically ventilated).
  15. Current or recent history (within the last 2 years) of active substance abuse
  16. Allergy to any component of the investigational product, such as calcium sulfate, glycopeptide antibiotics (vancomycin), or aminoglycoside antibiotics (gentamicin)
  17. Ulcers larger than 3.5 cm in diameter
  18. Hemoglobin A1c (HbA1c) > 12%
  19. DFI defined as severe (grade 4) by the Infectious Diseases Society of America (IDSA) /International Working Group on the Diabetic Foot criteria.
  20. Moderate to severe reduction in renal function, defined as estimated glomerular filtration rate (eGFR) of < 44.0 ml/min/1.73 m2 and creatinine ≥ 3.0 mg/dL

Sites / Locations

  • Perseverance Research Center, LLCRecruiting
  • NEA Baptist ClinicRecruiting
  • Barry University - School of Podiatric Medicine - Clinical ResearchRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Stimulan-VG

Standard of Care

Arm Description

Participants will receive Stimulan-VG on Day 1 following surgical debridement. Systemic antibiotics for 3 days ± 2 days following the debridement surgery.

Participants will receive Systemic antibiotics for 4-6 weeks following the debridement surgery.

Outcomes

Primary Outcome Measures

Number of participants with confirmed absence of clinical signs of osteomyelitis at the index site
Confirmed absence of clinical signs of osteomyelitis at the index site will be assessed via Probe to Bone Test (PTB) absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 24.
Number of participants with confirmed absence of clinical signs of surgical site infection at the index site
Confirmed absence of clinical signs of surgical site infection at the index site will be assessed via PTB, absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 24.
Number of participants with no clinical need for further antibiotic therapy for infection at the index site
Need for further antibiotic therapy for infection at the index site will be assessed at Week 24.
Number of participants with no clinical need for further additional surgical procedure or debridement to treat infection at the index site
Need for further additional surgical procedure or debridement to treat infection at the index site will be assessed at Week 24.

Secondary Outcome Measures

Ulcer healing per the University of Texas (UT) Staging System for Diabetic Foot Ulcers
The Investigator will assess the ulcer for healing using the UT Staging System for Diabetic Foot Ulcers which grades DFUs by grade (0, I, II, III) and stage (A, B, C, D), depending on the presence or absence of infection and ischemia. The grades are referred to as follows: grade 0 (pre-or post-ulcerative site that has healed), grade 1 (superficial ulcer not involving tendon, capsule, or bone), and grade 2 (ulcer penetrating to tendon or capsule), and grade 3 (ulcer penetrating bone or joint). The patient will be scored based on Grade score and stage score together. Grade 0, stage A considered being low severity, and Grade 3, stage D considered to be more severe.
Number of participants with occurrence of reinfection at the index site
Number of participants with the occurrence of reinfection at the index site will be assessed via PTB, absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 52.
Number of participants with no clinical need for further antibiotic therapy for infection at the index site
Need for further antibiotic therapy for infection at the index site will be assessed at Week 52.
Number of participants with no clinical need for further additional surgical procedure or debridement to treat infection at the index site
Need for further additional surgical procedure or debridement to treat infection at the index site will be assessed at Week 52.
Relative change from baseline in Cardiff Wound Impact Schedule (CWIS) quality of life assessment
The CWIS is designed and validated to specifically assess the quality of life (QoL) of subjects with chronic wounds (leg ulcers and diabetic foot ulcers (DFU)). This questionnaire contains 47 items divided into four scales: demographic and clinical characteristics (3 items), global health-related quality of life (HRQoL) (1 item), satisfaction with HRQoL (1 item) and impact of the wound on lifestyle. This last scale includes 3 domains: social life (14 items in total, 7 related to stress and 7 to experience), wellbeing (7 items), and physical symptoms and everyday living (24 items in total, 12 related to stress and 12 to experience). All three domains are scored on a 5-point scale, from "not at all" to "always". Thus, the total score includes the patient's perception of the experience and the associated stress. The final score ranges from 0 (poorer QoL) to 100 points (higher QoL) where a high score indicates a positive rating
Number of participants with adverse events
The number of participants with adverse events will be assessed.
Number of participants discontinuing therapy prematurely due to a treatment related event
The number of participants discontinuing therapy prematurely due to a treatment-related event will be assessed during the course of the trial and recorded on the participants electronic case report form (eCRF).
Number of hospitalizations/re-hospitalizations as a result of treatment for osteomyelitis or ulceration at the index site
The number of hospitalizations/re-hospitalizations as a result of treatment for osteomyelitis will be assessed during the course of the trial and recorded on the participants eCRF.
Number of participants undergoing amputation at the index site
The number of participants undergoing amputation at the index site will be assessed during the course of the trial and recorded on the participants eCRF.
Number of systemic antibiotic free days since trial surgery
The total number of days from Day 1 to week 24 without the use of antibiotics.

Full Information

First Posted
September 12, 2022
Last Updated
April 12, 2023
Sponsor
Biocomposites Ltd
Collaborators
Parexel
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1. Study Identification

Unique Protocol Identification Number
NCT05539963
Brief Title
A Feasibility Trial to Investigate the Safety and Between-group Effect Size of Stimulan-VG and Standard of Care (SoC) in Participants With Diabetic Foot Osteomyelitis of the Forefoot.
Acronym
BLADE-VG2
Official Title
A Multi-center, Randomized, Controlled Feasibility Trial of Stimulan-VG and Debridement With an Abbreviated Course of Systemic Antibiotics to Debridement and a Full Course of Systemic Antibiotics for the Treatment of Diabetic Foot Osteomyelitis of the Forefoot
Study Type
Interventional

2. Study Status

Record Verification Date
April 2023
Overall Recruitment Status
Recruiting
Study Start Date
January 23, 2023 (Actual)
Primary Completion Date
December 1, 2023 (Anticipated)
Study Completion Date
June 1, 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Biocomposites Ltd
Collaborators
Parexel

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this trial is to evaluate the safety and between-group effect size of Stimulan-VG compared to SoC treatment in patients with diabetic foot osteomyelitis (DFO) of the forefoot.
Detailed Description
This trial is an open-label, multi-center, randomized, controlled feasibility trial. All participants will undergo surgical debridement and receive either Stimulan-VG and an abbreviated course of systemic antibiotic therapy (3 days ±2 days) or a full course (4-6 weeks) of systemic antibiotic therapy. The total duration of study is Approximately 55 weeks.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Foot Osteomyelitis
Keywords
feasibility, between-group effect size, surgical debridement, systemic antibiotic

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
60 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Stimulan-VG
Arm Type
Experimental
Arm Description
Participants will receive Stimulan-VG on Day 1 following surgical debridement. Systemic antibiotics for 3 days ± 2 days following the debridement surgery.
Arm Title
Standard of Care
Arm Type
Active Comparator
Arm Description
Participants will receive Systemic antibiotics for 4-6 weeks following the debridement surgery.
Intervention Type
Drug
Intervention Name(s)
Stimulan-VG
Intervention Description
Participants will receive Stimulan-VG via implantation during debridement surgery on Day 1.
Intervention Type
Drug
Intervention Name(s)
Systemic Antibiotics
Intervention Description
Participants will receive Antibiotics per site-specific requirements via oral or intravenous route during Pre and post operatively.
Primary Outcome Measure Information:
Title
Number of participants with confirmed absence of clinical signs of osteomyelitis at the index site
Description
Confirmed absence of clinical signs of osteomyelitis at the index site will be assessed via Probe to Bone Test (PTB) absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 24.
Time Frame
Week 24
Title
Number of participants with confirmed absence of clinical signs of surgical site infection at the index site
Description
Confirmed absence of clinical signs of surgical site infection at the index site will be assessed via PTB, absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 24.
Time Frame
Week 24
Title
Number of participants with no clinical need for further antibiotic therapy for infection at the index site
Description
Need for further antibiotic therapy for infection at the index site will be assessed at Week 24.
Time Frame
Week 24
Title
Number of participants with no clinical need for further additional surgical procedure or debridement to treat infection at the index site
Description
Need for further additional surgical procedure or debridement to treat infection at the index site will be assessed at Week 24.
Time Frame
Week 24
Secondary Outcome Measure Information:
Title
Ulcer healing per the University of Texas (UT) Staging System for Diabetic Foot Ulcers
Description
The Investigator will assess the ulcer for healing using the UT Staging System for Diabetic Foot Ulcers which grades DFUs by grade (0, I, II, III) and stage (A, B, C, D), depending on the presence or absence of infection and ischemia. The grades are referred to as follows: grade 0 (pre-or post-ulcerative site that has healed), grade 1 (superficial ulcer not involving tendon, capsule, or bone), and grade 2 (ulcer penetrating to tendon or capsule), and grade 3 (ulcer penetrating bone or joint). The patient will be scored based on Grade score and stage score together. Grade 0, stage A considered being low severity, and Grade 3, stage D considered to be more severe.
Time Frame
Week 12
Title
Number of participants with occurrence of reinfection at the index site
Description
Number of participants with the occurrence of reinfection at the index site will be assessed via PTB, absence of draining sinus presumed to be from underlying bone and Plain X-ray at Week 52.
Time Frame
Week 52
Title
Number of participants with no clinical need for further antibiotic therapy for infection at the index site
Description
Need for further antibiotic therapy for infection at the index site will be assessed at Week 52.
Time Frame
Week 52
Title
Number of participants with no clinical need for further additional surgical procedure or debridement to treat infection at the index site
Description
Need for further additional surgical procedure or debridement to treat infection at the index site will be assessed at Week 52.
Time Frame
Week 52
Title
Relative change from baseline in Cardiff Wound Impact Schedule (CWIS) quality of life assessment
Description
The CWIS is designed and validated to specifically assess the quality of life (QoL) of subjects with chronic wounds (leg ulcers and diabetic foot ulcers (DFU)). This questionnaire contains 47 items divided into four scales: demographic and clinical characteristics (3 items), global health-related quality of life (HRQoL) (1 item), satisfaction with HRQoL (1 item) and impact of the wound on lifestyle. This last scale includes 3 domains: social life (14 items in total, 7 related to stress and 7 to experience), wellbeing (7 items), and physical symptoms and everyday living (24 items in total, 12 related to stress and 12 to experience). All three domains are scored on a 5-point scale, from "not at all" to "always". Thus, the total score includes the patient's perception of the experience and the associated stress. The final score ranges from 0 (poorer QoL) to 100 points (higher QoL) where a high score indicates a positive rating
Time Frame
Week 24
Title
Number of participants with adverse events
Description
The number of participants with adverse events will be assessed.
Time Frame
Week 52
Title
Number of participants discontinuing therapy prematurely due to a treatment related event
Description
The number of participants discontinuing therapy prematurely due to a treatment-related event will be assessed during the course of the trial and recorded on the participants electronic case report form (eCRF).
Time Frame
Week 52
Title
Number of hospitalizations/re-hospitalizations as a result of treatment for osteomyelitis or ulceration at the index site
Description
The number of hospitalizations/re-hospitalizations as a result of treatment for osteomyelitis will be assessed during the course of the trial and recorded on the participants eCRF.
Time Frame
Week 52
Title
Number of participants undergoing amputation at the index site
Description
The number of participants undergoing amputation at the index site will be assessed during the course of the trial and recorded on the participants eCRF.
Time Frame
Week 52
Title
Number of systemic antibiotic free days since trial surgery
Description
The total number of days from Day 1 to week 24 without the use of antibiotics.
Time Frame
Week 24

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Participant must be ≥18 years of age inclusive, at the time of signing the informed consent. Participant has a current diagnosis and is being treated for diabetes mellitus, type 1 or type 2 Participant who requires surgical debridement, but not to the extent that it requires amputation of the toe, metatarsal or ray Participant who has confirmed presence of diabetic foot osteomyelitis (DFO) of the forefoot as evidenced by at least 3 out of 5 of the following: Positive PTB (probe-to-bone) test Presence of draining sinus presumed to be from underlying bone Plain X-ray highly suggestive of or most compatible with osteomyelitis Ulcer present for greater than 30 days Substantially elevated serum marker for inflammation Participant is male or female A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies: Not a woman of childbearing potential (WOCBP) OR A WOCBP who agrees to follow the contraceptive guidance in from enrollment up to Week 52. Exclusion Criteria: Diabetic foot ulcer on the tip of toes or in any location other than the forefoot (proximal to the metatarsal neck) Acute amputation site (< 30 days post-operatively) Ulcers present for more than 12 months duration Significant peripheral arterial disease: Ankle brachial index ≤ 0.7 mm Hg OR toe pressure ≤ 40 mm Hg OR transcutaneous oximetry ≤ 40 mm Hg Any significant immunocompromising disease Evidence of systemic infection/sepsis associated with osteomyelitis of the forefoot Malignancy that might affect trial interpretation of outcomes or the participant's ability to complete the trial Any other type of infection that would require ongoing systemic antibiotic therapy during trial enrollment History of muscular disorders, such as myasthenia gravis or parkinsonism Any conditions with known hypercalcemia (> 10.3 mg/dl) or posing a significant risk for developing hypercalcemia Antibiotics to manage acute diabetic foot ulcer (DFU) infection within 24 hours prior to screening Antibiotic therapy exceeding 10 days duration within two weeks prior to the washout period Immunologically suppressed or has received systemic administration of corticosteroids at a dose of >10 mg prednisone (or corticosteroid equivalent) for more than 14 consecutive days within the 90 days prior to informed consent Participant has a positive real-time reverse transcriptase polymerase chain reaction (RT-PCR) test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has clinical signs and symptoms consistent with SARS-CoV-2 infection, or positive SARS-CoV-2 test result, had severe course of COVID-19 (extracorporeal membrane oxygenation [ECMO], mechanically ventilated). Current or recent history (within the last 2 years) of active substance abuse Allergy to any component of the investigational product, such as calcium sulfate, glycopeptide antibiotics (vancomycin), or aminoglycoside antibiotics (gentamicin) Ulcers larger than 3.5 cm in diameter Hemoglobin A1c (HbA1c) > 12% DFI defined as severe (grade 4) by the Infectious Diseases Society of America (IDSA) /International Working Group on the Diabetic Foot criteria. Moderate to severe reduction in renal function, defined as estimated glomerular filtration rate (eGFR) of < 44.0 ml/min/1.73 m2 and creatinine ≥ 3.0 mg/dL
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Sean Aiken, Clinical Research Director
Phone
+44 (0) 1782 338 580
Email
sa@biocomposites.com
First Name & Middle Initial & Last Name or Official Title & Degree
Heidi Fortuna, Clinical Affairs Director
Phone
910 350 8015
Email
haf@biocomposites.com
Facility Information:
Facility Name
Perseverance Research Center, LLC
City
Scottsdale
State/Province
Arizona
ZIP/Postal Code
85254
Country
United States
Individual Site Status
Recruiting
Facility Name
NEA Baptist Clinic
City
Jonesboro
State/Province
Arkansas
ZIP/Postal Code
72401
Country
United States
Individual Site Status
Recruiting
Facility Name
Barry University - School of Podiatric Medicine - Clinical Research
City
North Miami Beach
State/Province
Florida
ZIP/Postal Code
33169
Country
United States
Individual Site Status
Recruiting

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

A Feasibility Trial to Investigate the Safety and Between-group Effect Size of Stimulan-VG and Standard of Care (SoC) in Participants With Diabetic Foot Osteomyelitis of the Forefoot.

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