Herbal cream could heal diabetic foot wounds without surgery
NCT ID NCT06531512
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a cream made from two plant extracts (Plectranthus amboinicus and Centella Asiatica) to see if it can completely heal diabetic foot ulcers. The trial includes 120 adults with type 1 or type 2 diabetes who have a moderate foot ulcer. Participants apply the cream or a placebo daily for 16 weeks, and doctors check if the wound closes fully. The goal is to find a simple, topical treatment that avoids more invasive procedures.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Xianglei Tangzu Gao (cream containing extracts of Plectranthus amboinicus and Centella Asiatica)
- What this could lead to
- If it works, this cream could offer a new, non-surgical way to heal diabetic foot ulcers, potentially reducing the risk of infection and amputation.
- What could go wrong
- This is an early-to-mid-stage trial with only 120 participants, so results may not apply to everyone. The cream may not heal ulcers faster than standard care, and skin irritation is possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
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About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Aug 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Subjects, male or female, aged 18 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. Diagnosis with Diabetic Peripheral Neuropathy (DPN) or vascular disease defined by Chinese guidelines for diagnosis and treatment of diabetic foot (2020 version). Subject has adequate vascular perfusion of the affected limb, no obvious clinical manifestations of lower limb ischemia, confirmed by Ankle-Brachial Index (ABI) ≥ 0.8 and ≤ 1.3, or transcutaneous pressure of oxygen (TcPO2) \> 30 mmHg on at least one lead. 4. An ulcer of Wagner Grade II. 5. Presence of at least one diabetic foot ulcer that meets all of the following criteria: 1. Ulcer size (area) is \> 1 cm2 and ≤ 25 cm2 (post-debridement at time of screening and randomization) 2. Ulcer is located on or below the malleoli and presents duration of between 4 weeks and 12 months (at time of screening). 3. If there are more than two ulcers, there should be a minimum 3 cm margin between the qualifying Target Ulcer and any other ulcers on the specified foot (post- debridement). 4. No active infection by clinical inspection as defined by IDSA/IWGDF criteria. Note: If the subject has more than one qualifying diabetic foot ulcer, the most severe ulcer will be designated as the target ulcer. Severity will be determined by the investigator's assessment. 6. Subject, if a female of child-bearing potential, has a negative serum pregnancy test at screening, and willing to use 2 medically accepted methods of contraception (e.g., barrier contraceptives \[female condom, or diaphragm with a spermicidal gel\], hormonal contraceptives \[implants, injectables, combination oral contraceptives, transdermal patches, or contraceptive rings\], and intrauterine devices) during the study (excluding women who are not of childbearing potential and/or who have been sterilized). 7. Subject should be able to walk and stand on the non-target ulcer limb. 8. Subject is willing to use an off-loading device for the target ulcer on the plantar while ambulation for the duration of the study 9. Subject and/or trained identified caregiver is able and willing to comply with study procedures and appropriate dressing changes. 10. A signed and dated informed consent form has been obtained from the subject prior to any study-related procedures being performed. Exclusion Criteria: 1. In response to the standard of care, ulcer size reduction is \> 30% during the two-week run-in Screening Period (between the first Screening Visit/V0 and Baseline/V2 randomization). 2. Ulcers with exposed bone or associated with osteomyelitis. Note: The osteomyelitis should be ruled out by clinical examination (probing of the wound) and X-ray findings. 3. Presence of necrosis, purulence, or sinus tracts that cannot be removed by debridement. 4. Laboratory values at Screening of: 1. White Blood Cells (WBC) \< 3.0 X 109 cells/L, \> 12.0 X 109 cells/L 2. C-Reactive Protein (CRP) \>100 mg/L 3. Liver function studies \[Total bilirubin, aspartate aminotransferase (AST) and alanine transaminase (ALT)\] \> 3x the upper limit of normal 4. Albumin \< 25 g/L 5. Renal function studies \[Serum Creatinine\] \> 3x the upper limit of normal 6. Hemoglobin\< 100 g/L 5. Presence of any clinically significant medical condition(s) in medical history during 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. 5. Severe cerebrovascular lesion (acute or significant clinical manifestation) and severe cardiac dysfunction (NYHA class III or IV) such as congestive heart failure, myocardial infarction, or coronary artery bypass grafting, or percutaneous transluminal coronary angioplasty was performed within the last 6 months. 6. Subject is currently receiving (i.e., within 30 days of randomization visit) or scheduled to receive any of following medication or therapies, could interfere with wound healing during the study. 1. immunosuppressants (including chronic systemic and topical steroids) 2. cytotoxic chemotherapy 3. cytostatic therapy 4. negative pressure wound therapy 5. autoimmune disease therapy 6. dialysis 7. lower limb revascularization surgery 8. intravenous infusion of growth factors 9. use of any investigational drug(s) 7. Previous use of bioengineered tissue or skin substitutes on potential target ulcers. 8. Subjects who need to stand continuously for more than 4 hours / day and have difficulty complying with off-loading instructions. 9. 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. 10. Has any other factor which may, in the opinion of the investigator, compromise participation and/or follow-up in the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Affiliated Hospital of Jiangsu University
Zhenjiang, Jiangsu, China
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Huadong Hospital Affiliated to Fudan University
Shanghai, China
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Jiangmen Central Hospital
Jiangmen, Guangdong, China
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Longhua Hospital Shanghai University of Traditional Chinese Medicine
Shanghai, China
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Nanfang Hospital
Guangzhou, China
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Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
Shanghai, China
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Shanghai TCM Integrated Hospital
Shanghai, China
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Shenyang Seventh People's Hospital (Shenyang Hospital of Integrated Traditional Chinese and Western Medicine)
Shenyang, Liaoning, China
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Southern Medical University Third Hospital
Guangzhou, China
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Sun Yat-sen Memorial Hospital, Sun Yat-sen University
Guangzhou, China
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The First Affiliated Hospital of Henan University of Science & Technology
Luoyang, Henan, China
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The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu, China
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The First Affiliated Hospital of Xi'an Jiaotong University
Xi'an, Shaanxi, China
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The Second Affiliated Hospital of Zhejiang University School of Medicine
Hangzhou, Zhejiang, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New wound dressing put to the test against diabetic foot ulcers
- Silver and sound: can ultrasound push nanoparticles into diabetic wounds?
- Zapping a leg nerve: can a wearable device help stubborn ulcers heal?
- Wound dressings that trap microbes: scientists test a Drug-Free approach
- Can a traditional herbal mix save limbs from diabetic ulcers?