Phase 2a Dose Finding Study of Nu-3 Gel in Subjects With Mild iDFU
A Prospective, Randomized, Single-Blind Phase 2a Multi-Center Dose Comparative Study to Evaluated The Safety, Tolerability, and Antimicrobial Efficacy Of Topically Twice Daily Applied Bisphosphocin Nu-3 Gel At a 2%, 5%, And 10% Concentration To Infected Diabetic Foot Ulcers (iDFU)
1 other identifier
interventional
24
0 countries
N/A
Brief Summary
The goal of this clinical trial is to learn if drug Nu-3 works to treat mildly infected diabetic foot ulcers in adults with Type 1 or Type 2 diabetes at 3 different dose levels. It will also learn about the safety of drug Nu-3. The main questions it aims to answer are: Does drug Nu-3 lower the number of bacteria or viruses in the infected ulcer, or cure patients of the infection, at any or all of the dose levels being tested after 1 week or 2 weeks? What medical problems do participants have when taking the topical drug Nu-3? Researchers will compare drug Nu-3 at different dose levels to see if drug Nu-3 works to treat the infected ulcers at each of the dose levels. Participants will: Take drug ABC or a placebo every day for 4 months Visit the clinic once every 2 weeks for checkups and tests Keep a diary of their symptoms and the number of times they use a rescue inhaler
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Aug 2026
Shorter than P25 for phase_2
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 27, 2026
CompletedFirst Posted
Study publicly available on registry
May 4, 2026
CompletedStudy Start
First participant enrolled
August 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
Study Completion
Last participant's last visit for all outcomes
December 1, 2026
May 4, 2026
April 1, 2026
4 months
April 27, 2026
April 27, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Primary Efficacy Outcome
The rate reduction in CFUs by ≥ 2 logs per pathogen, which is identified as typical and highly suspicious for being the cause of the infection compared to baseline.
From enrollment to the end of day 7 and at the end of treatment at day 14
Primary Safety Outcome
Number of AEs overall and those assessed by the investigators as possibly, probably, and definitely related to the study drug as well as the number of SAEs per patient and cohort.
From enrollment to the end of study participation at 4 weeks
Secondary Outcomes (3)
Treatment success by dose
From enrollment to the end of treatment at 2 weeks
Treatment failures by dose
From enrollment to the end of treatment at 2 weeks
Secondary safety outcomes
From enrollment to 7 days of treatment, end of treatment at 2 weeks, and end of study participation in the study at 4 weeks
Other Outcomes (1)
Wound healing by dose
From enrollment to 7 days of treatment, end of treatment at 2 weeks, and end of study participation at 4 weeks
Study Arms (3)
2.5mg dose
EXPERIMENTALTwice daily application for 14 days
5mg dose
EXPERIMENTALTwice daily application for 14 days
10mg dose
EXPERIMENTALTwice daily application for 14 days
Interventions
Topical antimicrobial gel application twice a day for 2 weeks
Eligibility Criteria
You may qualify if:
- Male and female subjects ≥18 years of age.
- Voluntary written informed consent, including information about the provisions of the Health Insurance Portability and accountability act (HIPAA) as applicable.
- Non-hospitalized ambulatory subjects diagnosed with diabetes mellitus, Type I or II per ADA criteria with signs of a localized mild foot infection as defined by the IDSA infection severity criteria (Lipsky,2012). The presence of purulent drainage or at least two of the following criteria:
- i. erythema, ii. warmth, iii. pain or tenderness, iv. edema, or v. induration (The diagnosis of mild infection must be confirmed immediately following debridement at Baseline).
- The target ulcer is classified as a grade 1 ulcer according to the Wagner Scale (Wagner 1979). The ulcer is a superficial, full-thickness ulcer limited to the dermis, not extending to the subcutis. Target ulcer is \>1 cm2 and \<12 cm2 post debridement at baseline and must be no higher than the ankle, on or below the malleolus (ankle bone) with ≥50% below the malleolus.
- Adequate vascular perfusion as evidenced by one of the following:
- Dorsal transcutaneous oxygen measurement (TCOM) or a skin perfusion pressure (SPP) measurement of ≥ 40 mmHg
- Ankle Branchial Index (ABI) between 0.9 and 1.3 within 3 months of Screening using the extremity with the target ulcer.
- Arterial Doppler ultrasound evaluating for biphasic or triphasic dorsalis pedis and posterior tibial vessels at the level of the ankle or a TBI (Toe Brachial Index) of \>0.75.
- Subject has a caregiver who will attend the Baseline visit (V2) and/or watch the dosing and dressing demonstration video and apply wound treatment along with study dressings for the study duration.
- Must meet one of the following criteria:
- a. Female subjects of Non-Child-Bearing Potential i. Postmenopausal for at least 1 year ii. Surgically sterilized (i.e., hysterectomy or bilateral oophorectomy more than 3 months prior to Screening) iii. Bilateral tube ligation \> 6 months prior to screening iv. A negative serum β-hCG pregnancy test at screening and no breastfeeding after the administration of the study drug.
- b. Male subjects of Non-Childbearing Potential defined as: i. Vasectomized subjects for \> 6 months prior to Screening ii. Those diagnosed as sterile by a physician. c. Females and Males of Childbearing Potential who practice an acceptable method of contraception defined as the i. Use of any form of hormonal contraceptive ii. Use of a barrier method with spermicide, condoms, intrauterine device, iii. Abstinence from sexual intercourse starting at least 60 days prior to Screening and continuing at least 14 days following the last treatment.
- Subjects must be willing to undergo all clinical investigation-related procedures, attend all required visits, and cooperate fully with the investigator and site personnel.
- Subject must be willing to wear offloading RCW, if necessary (defined as ulcer at plantar site of the foot, see Appendix 6), throughout the duration of the clinical treatment.
- +1 more criteria
You may not qualify if:
- Ulceration with exposed tendon, capsule, or bone
- IDSA-defined moderate or severe DFU infection.
- Infected diabetic foot ulcer that is associated with local wound complications such as prosthetic materials or protruding surgical hardware.
- \> 1 infected foot ulcer
- Subject is currently receiving topical antimicrobial treatment for a localized infection of the study ulcer or received such topical antimicrobial treatment \< 72 hours prior to study enrollment.
- Subject has received systemic treatment with a long-lasting antibiotic such as azathioprine (within less than 10 days prior to Screening) or any other systemic antibiotic within 48 hours prior to Screening.
- Concurrent or expected to require systemic antimicrobials during the active treatment study period for any infection including diabetic foot ulcer.
- Any subject that has active viral hepatitis (A, B, C) and/or untreated HIV/AIDS.
- Any subject that has vascular compromise requiring surgical intervention or has undergone vascular reconstruction or angioplasty less than 1 month prior to randomization. Any planned surgical procedures during the study participation
- eGFR \<60 and/or subject on hemodialysis within 3 months prior to randomization.
- Hemoglobin A1c (HbA1c) \>12% within 3 months prior to randomization.
- Aspartate Aminotransferase (AST, GOT) and/or Alanine Aminotransferase (ALT, GPT) \>3.0 x the upper limit of normal and/or bilirubin \>1.5 x the upper limit of normal within 3 months prior to randomization.
- Acute active Charcot foot
- Any subject that would be unable to safely monitor the infection status at home and return for scheduled visits.
- History of immunosuppression within 3 months prior to randomization, or taking immunosuppressive agents including systemic corticosteroids, except stable daily doses of 5 mg/day or less for chronic conditions
- +6 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 27, 2026
First Posted
May 4, 2026
Study Start (Estimated)
August 1, 2026
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
May 4, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share