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A Study to Evaluate the Skin Irritation Potential of PBI-100 Topical Cream in Healthy Participants

A 21 Day, Randomized, Controlled Study to Evaluate the Skin Irritation Potential of PBI-100 Topical Cream in Healthy Participants Using a Cumulative Irritant Patch Test Design

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04882631
Enrollment
30
Registered
2021-05-12
Start date
2021-04-12
Completion date
2021-05-03
Last updated
2022-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

This is an open-label, single-arm, randomized, evaluator-blinded repeat insult patch testing (RIPT) study wherein test product is applied under an occlusive dressing to the upper back or arm continuously and repeatedly to the same site for a period of 21 days.

Detailed description

This is an open-label, single-arm, randomized, evaluator-blinded repeat insult patch testing (RIPT) study wherein test product is applied under an occlusive dressing to the upper back or arm continuously and repeatedly to the same site for a period of 21 days. Three concentrations of PBI-100 Topical Cream and vehicle (placebo cream) will be applied to the skin of each subject. In addition, one site will be treated with a positive control and another site will be treated with a plain cotton cloth patch and will serve as a negative control.

Interventions

A dose of approximately 560 ug (approximately 0.4 mL of each of the three concentrations to 3 different sites) of PBI-100 was applied daily (excluding weekends) to the skin test sites.

DRUGPositive Control - Sodium laurel sulfate (SLS)

Approximately 0.4 mL of 0.25% SLS was applied daily (excluding weekends) as a positive control test site.

OTHERPBI-100 Topical Cream, Vehicle

Approximately 0.4 mL of 0% placebo cream was applied daily (excluding weekends) as a positive control test site.

OTHERNegative Control

A blank patch was applied daily (excluding weekends) as a negative control test site.

Sponsors

Pyramid Biosciences
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Masking description

The participant and evaluator are blinded to the identity of the test product (3 strengths of PBI-100), vehicle, negative control and positive control placed on each subject's forearm, upper arm or back

Intervention model description

The order of test product patch placement is randomized.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy adult male and female volunteers between the ages of 18 and 70 years with Fitzpatrick types I, II, or III. * Must be willing to follow the study requirements and voluntarily give their informed consent. * Subjects must be able to read and follow study instructions in English. * Generally in good health as determined by the investigator, based on medical history interview. * Evidence of a personally signed and dated Informed Consent indicating that the subject has been informed of and understood all pertinent aspects of the trial.

Exclusion criteria

* Scars, moles, or other blemishes over the forearm, upper arm, or back that interfere with the study. * Sunburn within the last three weeks or use of tanning beds. * History of allergy or hypersensitivity to skin care or consumer products including fragrances, cosmetics, toiletries, or any kind of tape. * History of chronic or recurrent dermatological diseases, e.g., psoriasis, atopic eczema, chronic urticaria. * Subjects receiving systemic or topical drugs which can interfere with the development of an inflammatory response, e.g., steroids, immunosuppressive agents, or retinoids. * History of any significant systemic diseases e.g., cardiac, pulmonary, renal, hepatic, etc. that would impact subject's ability to complete the study. * Pregnancy or mothers who are breastfeeding or planning a pregnancy. * Other conditions considered by the Investigator as sound reasons for disqualification from enrollment into the study.

Design outcomes

Primary

MeasureTime frameDescription
Irritation Potential21 daysIrritation potential based on the Cumulative Irritation Index (CII)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026