Study to Find Out if Cream V61-044 Used to Treat Fungal Infections Causes an Allergic Skin Reaction to Sunlight in Healthy Participants
Condition: Dermatitis, Photoallergic
MeSH terms: Dermatitis; Dermatitis, Photoallergic
Intervention: Butenafine HCl 1% (BAY1896425) - Induction Phase; Butenafine HCl 1% (BAY1896425) - Challenge Phase
Intervention description: To each of two test sites, approximately 20 μl/cm^2 of the Butenafine HCl 1% was applied directly to the skin and covered with a 25 mm Hilltop chamber with a Webril pad (2 cm in diameter, within an area of approximately 3 cm^2), and tape was applied over the chamber to secure the occlusive patch to the skin. On the next day, the chambers were removed and both test sites were lightly wiped. Approximately 2 μl/cm^2 of Butenafine HCl 1% was reapplied directly to the skin and lightly spread over the treated irradiated test site. The treated non-irradiated test site did not receive a similar reapplication. Between 5 and 15 minutes after application, the treated irradiated test site was irradiated with two times the subject's Minimal Erythema Dose (MED). Evaluation of the test sites occurred two days after the irradiation. This procedure was repeated two times per week for three consecutive weeks for a total of 6 induction exposures per test site.; 5 μl/cm^2 of the Butenafine HCl 1% was applied directly to each of the two virgin sites (treated sites) adjacent to the induction patch sites and covered with Hilltop chambers with Webril pad and tape was applied over the chambers to secure the occlusive patches to the skin. Two additional sites with no Butenafine HCl 1% (untreated sites) were also occluded. Sites were at least 2.5 cm apart. The patches were removed 24 hours later and the sites were lightly wiped. Test sites were evaluated. Butenafine HCl 1% (2 μl/cm^2) was applied to the treated irradiated site. After 15 minutes, the treated irradiated site and the untreated irradiated site were irradiated with 0.5 MED of UVA/UVB irradiation followed by 10 Joules/cm^2 of UVA from a xenon arc solar simulator equipped with a Schott WG345 to eliminate UVB radiation. The remaining sites served as the treated non-irradiated site and untreated non-irradiated site.
Intervention MeSH terms: Antifungal Agents; Clotrimazole; Miconazole; Butenafine
Phase: Phase 3
Study type: Interventional
Primary purpose: Treatment
Intervention model: Single Group Assignment
Masking: None (Open Label)
Enrollment: 137.0
Sex: All
Minimum age: 18 Years
Maximum age: 60 Years
Healthy volunteers: Accepts Healthy Volunteers

Summary:

      Allergic skin reaction can be produced by the combination of a chemical product applied to
      the skin and ultraviolet (UV) radiation (a type of invisible light that comes from the sun
      and other light sources and can hurt your skin and eyes) received by the person. The
      researchers in this study wanted to find out if cream V61-044 might cause an allergic skin
      reaction to sunlight when applied to the skin in healthy participants. Cream V61-044 (brand
      name: LOTRIMIN ULTRA) is an approved drug used to treat infections caused by fungi (small
      growing organisms such as mold, mildew, yeast or mushrooms).

      Participants joining this study underwent two study phases: in Induction phase, participants
      received the test cream and UV radiation twice a week for 3 weeks; after 10 days of rest, in
      Challenge phase participants received the test cream and UV radiation once again. In both
      phases, the test cream was applied to two test areas on the upper back of the participants
      and to one of the test area UV radiation was applied. Evaluation on the skin rash was
      conducted two days after each UV radiation.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Subjects must have been between the ages of 18 and 60 years;

          -  Subjects must have been lightly pigmented with skin phototypes I - III, determined by
             the following guidelines: I-Always burns easily; never tans (sensitive); II-Always
             burns easily; tans minimally (sensitive); III-Burns moderately; tans gradually
             (light-brown) (normal);

          -  Subjects must have been in general good health as determined by the subject's medical
             history;

          -  Subjects must have been willing to avoid tanning bed usage and additional sun exposure
             during the study and follow-up period;

          -  Subjects must have been willing to refrain from using any new topical products during
             the trial;

          -  Subjects must have been able and willing to cooperate with the Investigator and
             research staff, to have test materials applied according to protocol, and to complete
             the full course of the trial;

          -  Subjects must have been willing to report any medications taken during the trial and
             refrain from taking any medications during the trial that might produce
             photoreactions;

          -  If female, produced a negative urine pregnancy test prior to the initiation and also
             at the completion of the study.

        Exclusion Criteria:

          -  Subjects with a visible sunburn;

          -  Subjects who had a history of sun hypersensitivity, photosensitivity, or
             photosensitive dermatoses;

          -  Subjects with a history of allergies or sensitivities to cosmetics, toiletries, or any
             dermatological products;

          -  Subjects who had recently used any systemic or topical drugs which can cause a
             photoreaction or may interfere with the trial;

          -  Subjects with any known skin conditions that might have interfered with the proper
             conduct of the trial;

          -  Subjects with scars, moles, excessive hair, or other blemishes over the mid or lower
             back which might have interfered with the test or the grading of the test sites;

          -  Subjects who had significant history of internal disease that may have interfered with
             the evaluation of the test material as determined by the Investigator;

          -  Female subjects who were pregnant, planning pregnancy, or nursing a child during the
             study period;

          -  Subjects who had used a tanning bed or other artificial tanning lights within the past
             two months;

          -  Subjects who had participated in a patch test involving the back within four weeks
             prior to the start of the trial;

          -  Subjects who would concurrently participate in any other clinical or consumer test;

          -  Subjects who had other conditions considered by the Investigator as sound reasons for
             disqualification from enrollment into the trial.