Exploring the Effect of Fespixon Cream for the Treatment of Diabetic Foot Ulcers (TEXAS 3A, 3B)

A Research Study to evaluate the therapeutic effect of Fespixon cream in patients suffering from DFU (UTWCS Grade III-A or III-B) by measuring the change of grade of UTWCS (University of Texas Diabetic Wound Classification system), wound area reduction, infection control, and incidence of treatment-emergent adverse event (TEAE).

Study Overview

• Status: Terminated
• Conditions: Diabetic Foot Ulcer (DFU)
• Intervention / Treatment: Drug: Fespixon Cream

Detailed Description

This study is designed as a single-arm, open-label, one-center study to evaluate the therapeutic effect of Fespixon cream in patients suffering from DFU (UTWCS Grade III-A or III-B). The duration of this study is: run-in/ screening phase (7 days ± 3 days); treatment phase (12 weeks); follow-up phase (2 weeks ± 4 days), and visits are conducted every week during the run-in/ screening phase and every 2 weeks during the treatment phase and follow-up phase for a total of 9 visits. During the treatment phase, the Fespixon cream will be applied to the target ulcer twice a day for a maximum period of 12 weeks, until the target ulcer downgrade from UTWCS grade III-A or III-B to I-A, I-B, II-A, or II-B for two consecutive visits at least 2 weeks apart, or until the subject exited the study as treatment failure. After that, all subjects regardless of wound grade-down at the end of the treatment phase will be followed for 2 weeks. During the follow-up phase, standard of care or other treatment modalities (with an exception of investigational treatment/ medications) will be used for all subjects at the discretion of the investigator.

At each visit, the size and changes of the target ulcer are recorded by photographing. The target ulcer area in the photo is calculated using Image-Pro® Plus software.

• Study Type: Interventional
• Enrollment (Actual): 3
• Phase: Phase 4

Contacts and Locations

Study Locations

• Taiwan
  • Taichung, Taiwan, 40447
    • China Medical University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Subjects, male or female, aged 20 to 80 years (inclusive) with Type 1 or Type 2 diabetes undergoing therapy for glycemic control using available diabetes drugs including insulin.
2. Subject has a glycosylated hemoglobin, HbA1c ≤ 12%.

3. Presence of at least one diabetic foot ulcer that meets all of the following criteria:

   1. A full-thickness ulcer of UTWCS Grade III-A or III-B
   2. Ulcer size (area) is >2 cm^2 and ≤30 cm^2 (post-debridement at time of enrollment)
   3. Ulcer is located on or below the malleoli.
   4. Ulcer presents for >1 week (at time of enrollment).
   5. There is a minimum 3 cm margin between the qualifying Target Ulcer and any other ulcers on the specified foot, (post-debridement).
   6. The infection severity of the target ulcer is defined as uninfected, mild, or moderate infection by IDSA/ IWGDF Guidelines. (IDSA/IWGDF-defined severe infection would be excluded)

   Note:

   • If the subject has more than one qualifying diabetic foot ulcer, the most severe ulcer will be designated as the target ulcer; meanwhile, the depth of the wound will the consideration prior to the area of the wound.

   • Any foot infection with the following signs of a systemic inflammatory response syndrome is defined as severe infection according to IDSA Infection Severity. This response is manifested by two or more of the following conditions:

     1. temperature>38℃ or <36℃
     2. heart rate > 90 beats/minute
     3. respiratory rate > 20 breaths/minute or PaCO2 < 32 mmHg
     4. WBC ( white blood cell count ) < 4.0 X 10^9 cells/ L； > 12.0 X 10^9 cells/ L or ≥ 10% immature (band) forms.
4. Subject has adequate vascular perfusion of the affected limb, confirmed by Ankle-Brachial Index (ABI) ≥ 0.8 and < 1.3, or transcutaneous pressure of oxygen (TcPO2) ≥ 30 mmHg on at least one lead to ensure no serious embolisms / no serious clogging of blood vessels.
5. Subject, if female of child-bearing potential, have a negative serum/urine pregnancy test at screening, must not be breastfeeding, and willing to use 2 medically accepted methods of contraception (e.g., barrier contraceptives [female condom, or diaphragm with a spermicidal gel], hormonal contraceptives [implants, injectable, combination oral contraceptives, transdermal patches, or contraceptive rings], and intrauterine devices) during the course of the study (excluding women who are not of childbearing potential and/or who have been sterilized).
6. Subject is willing to use an off-loading device for the target ulcer on the plantar while ambulation for the duration of the study; the study institution will provide the off-loading devices.
7. Subject / identified caregiver trained on the study procedures is able and willing to comply with study procedures.
8. A signed and dated informed consent form has been obtained from the subject prior to any study-related procedures being performed.

Exclusion Criteria:

1. Other laboratory values at Screening of:

   1. Liver function studies [Total bilirubin, aspartate aminotransferase (AST), and alanine transaminase (ALT)] > 3x the upper limit of normal
   2. Albumin < 2.5 g/dL

2. Presence of any clinically significant medical condition(s) in medical history during the screening period that, in the opinion of the investigator, could interfere with wound healing, including but not limited to the following:

   1. Acute or unstable Charcot foot
   2. Current sepsis
   3. Active malignant disease. A subject, who has had a malignant disease in the past, was treated, and is currently disease-free, may be considered for study entry
   4. Acquired immune deficiency syndrome (AIDS) or HIV positive
3. Has a known hypersensitivity to any of the investigational drug or the related components
4. X-ray or MRI scan is as a mandatory screening to rule out osteomyelitis

5. Subject is currently receiving (i.e., within 30 days of enrollment visit) or scheduled to receive any of the following medication or therapies, which could interfere with wound healing during the course of the study.

   1. immunosuppressant (including chronic systemic corticosteroids)
   2. cytotoxic chemotherapy
   3. cytostatic therapy
   4. autoimmune disease therapy
   5. lower limb revascularization surgery (e.g., angioplasty, artery bypass surgery)
   6. growth factors
   7. hyperbaric oxygen therapy
   8. bioengineered tissue or skin substitutes (ADM)
   9. application of topical steroids to the ulcer
   10. use of any investigational drug(s)
6. A psychiatric condition (e.g., suicidal ideation), current or chronic alcohol or drug abuse, determined from the subject's medical history, which, in the opinion of the investigator, may pose a threat to subject compliance.
7. Subjects who need to stand continuously for more than 4 hours/day and have difficulty complying with off-loading instructions.
8. Has any other factor which may, in the opinion of the investigator, compromise participation and/or follow-up in the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Diabetic Foot Ulcers (TEXAS 3A, 3B); Name: Fespixon Cream; Dosage form: Topical cream, 15 g ointment per tube; Active ingredients: 1.25% extracts of Plectranthus amboinicus (PA-F4, 0.25%) and Centella asiatica (S1, 1%); Dose(s): Apply 1 cc per 5 cm^2 ulcer size (approximately 2 mm in thickness); Dosing schedule: Apply twice a day; Duration: up to 12 weeks	Drug: Fespixon Cream; Name: Fespixon Cream; Dosage form: Topical cream, 15 g ointment per tube; Active ingredients: 1.25% extracts of Plectranthus amboinicus (PA-F4, 0.25%) and Centella asiatica (S1, 1%); Dose(s): Apply 1 cc per 5 cm^2 ulcer size (approximately 2 mm in thickness); Dosing schedule: Apply twice a day; Duration: up to 12 weeks; Other Names: ON101 cream

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of the grade down of the target ulcer	Ulcer grade down is defined as ulcer downgrading from 3A or 3B to 1A, 1B, 2A, or 2B confirmed at two consecutive study visits 2 weeks apart.	12 weeks
Time to the ulcer grade down	Ulcer grade down is defined as ulcer downgrading from 3A or 3B to 1A, 1B, 2A, or 2B confirmed at two consecutive study visits 2 weeks apart.; Time to the ulcer grade down was defined as "time to the first visit of ulcer grade down of the target ulcer."	12 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean change from baseline in the target ulcer area confirmed by Image-Pro® Plus calculation of the wound area	The target ulcer area at each visit is confirmed by Image-Pro® Plus software and presented as a mean change from the baseline.	12 weeks
Percentage change from baseline in the target ulcer area confirmed by Image-Pro® Plus calculation of the wound area	The target ulcer area at each visit is confirmed by Image-Pro® Plus software and presented as a percentage change from the baseline.	12 weeks
Percentage of ulcer improvement	Ulcer improvement is defined as ulcer downgrading from 3A or 3B to 1A, 1B, 2A, or 2B confirmed at two consecutive study visits 2 weeks apart.	12 weeks

Collaborators and Investigators

• Sponsor: Oneness Biotech Co., Ltd.
• Collaborators: China Medical University Hospital
• Investigators: Study Director: Shyi-Gen Chen, VP, Oneness Biotech Co., Ltd.

Study record dates

Study Major Dates

• Study Start (Actual): August 4, 2022
• Primary Completion (Actual): April 3, 2024
• Study Completion (Actual): April 3, 2024

Study Registration Dates

• First Submitted: June 24, 2022
• First Submitted That Met QC Criteria: June 24, 2022
• First Posted (Actual): June 29, 2022

Study Record Updates

• Last Update Posted (Actual): May 16, 2024
• Last Update Submitted That Met QC Criteria: May 13, 2024
• Last Verified: May 1, 2024

More Information

Terms related to this study

• Keywords: Diabetic Foot Ulcer; Fespixon; ON101; TEXAS 3A/3B
• Additional Relevant MeSH Terms: Pathologic Processes; Cardiovascular Diseases; Vascular Diseases; Skin Diseases; Endocrine System Diseases; Diabetic Angiopathies; Leg Ulcer; Skin Ulcer; Diabetes Complications; Diabetes Mellitus; Diabetic Neuropathies; Foot Diseases; Diabetic Foot; Foot Ulcer; Ulcer
• Other Study ID Numbers: ON101CLAS08

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No