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Completed

NCT Number: NCT05202366

An Open-label Study Evaluating the Effectiveness of CGB-400 Topical Gel for Fungal Infection

The goal of the current study is to evaluate the ability of CGB-400, a proprietary eutectic mixture of GRAS compounds, to clear the toenail fungal growth and improve the appearance of the fungus affected area(s).

This is an open-label, single group POC study evaluating the effectiveness of CGB-400 Topical Gel for toenail fungal growth clearing. The study consists of a 12-week period with 5 clinic visits at the following timepoints: Baseline (Day 0), and Weeks 2, 6, and 12 and post-application follow-up at Week 24. The applications could be extended for an additional 12 weeks based on PI's observations.

Approximately 15 subjects will be enrolled and subjected to application of CGB-400 Topical Gel. Subjects must be at least 18 years of age and will be selected by the concerned PI.

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Key information

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Observational

Primary location

John Peter Smith Hospital

Fort Worth, Texas, 76104, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female ≥18 (and ≤99) at the time of Informed Consent.
  • Nail fungal infection of at least one great toe [per visual assessment by the clinical investigator]
  • Subjects who have target toenail showing 20-65% involvement as judged by the clinical investigator.
  • Subject must be physically able to reach toes to clean them and apply product.
  • Subject is willing to discontinue use of other nail fungus treatment products and nail cosmetic products for duration of this study.
  • Subject is willing and available to return for study follow up.
  • Signed written informed consent form (ICF) prior to any trial related activity (subjects must have the mental, literate, and legal ability to give a written informed consent, which must comply with the ICH GCP guidelines and local requirements.
  • Agree to take and share pictures of the treated toenails on a periodic basis during the study and follow-up period.

Exclusion criteria

  • Female subjects that are pregnant, breast-feeding, or of childbearing potential and not practicing reliable birth control.
  • Known hypersensitivity or previous allergic reaction to any constituent of the Investigational Product (i.e., essential oils, fragrance, choline, phosphatidylcholine, propylene glycol, limonene, cellulose).
  • Nails with clinical evidence of no or low distal growth.
  • History or presence of another skin/nail condition/disease that is located in the treatment area(s) and might interfere with the diagnosis or evaluation of study parameters (i.e., atopic dermatitis, psoriasis, significant actinic damage, vitiligo, open wounds, infection, etc.).
  • Basal cell carcinoma within 6 months of Visit 1.
  • Uncontrolled systemic disease.
  • Foreseen unprotected and intense/excessive UV exposure during the course of the study.
  • Use of prohibited concomitant medications/procedures, as specified below in Table 2, during the study or within the defined washout periods.
  • Scheduled or planned surgical procedures during the course of the study.
  • Unable or unwilling to comply with any of the study requirements.
  • Medical or psychiatric conditions, or a personal situation, that may increase the risk associated with study participation or may interfere with interpretation of study results or subject compliance and, in the opinion of the PI, makes the subject inappropriate for study entry.
  • Clinically significant alcohol or drug abuse, or history of poor cooperation or unreliability.
  • Exposure to any other investigational drug/device within 30 days prior to study entry.

Treatment and study plan

CGB-400 Topical Gel

Drug

CGB-400 Gel contains two main ingredients: geranic acid and choline. Geranic acid, a naturally occurring essential oil/terpenoid, is a key ingredient in lemon grass and is also found in other natural materials such as cardamom. The other main ingredient in CAGE is choline, which is an essential dietary component and found in foods as free choline and as several esterified forms such as phosphocholine and phosphatidylcholine.

Other names: CGB-400C Gel

Primary outcomes

  1. Investigator Global Assessment (IGA) of affected toenails

    Time frame: 24 weeks

    Clear 0% nail involvement

    • Almost clear 0%-≤10% nail involvement
    • Mild 10%-<25% nail involvement
    • Moderate 25%-≤50% nail involvement
    • Severe >50%-≤75% nail involvement

Secondary outcomes

  1. Percent clear area on affected toenail/region (s)

    Time frame: 24 weeks

    *Clear nail is defined as area from proximal nail fold till most proximal area of abnormality with evidence of persistent clear growth.

    Clearance must be progressively observed over two time points.

  2. Visual inspection (pictures to be collected)

    Time frame: 24 weeks

    Visual inspection for application site reactions: performed at each visit along with images taken by subjects and at the time of clinic visit

Other outcomes

  1. Subject Global Assessment

    Time frame: 24 weeks

    The Subject Global Assessment will be collected in the form "subject questionnaire"

    SUBJECT QUESTIONNAIRE:

    The Investigator (or designate) will ask the following questions at the Baseline visit and subject's answers will be recorded:

    • How frequently do you typically experience fungal growth each month?
    • How do you rate your fungal growth today relative to other times?
    • Are you aware of specific triggers that aggravate fungal growth?
    • How do you deal with or treat fungal growth?
    • What other products have you tried in the past for managing/treating fungal growth?
    • Are there any other aspects of fungal growth or experience that we should know about?

Sponsors and collaborators

Lead sponsor

CAGE Bio Inc.

Industry

Collaborators

  • John Peter Smith Hospital

Registry information

Official study title

An Open-label Cosmetic Study to Evaluate the Effectiveness of CGB-400 Topical Gel for Improving Appearance of Toenails Affected by Fungal Infection

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
Jan 21, 2022
Registry last updated
Apr 2, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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