ABOUT THIS STUDY
1. Healthy female participants of non-childbearing potential and/or male participants who, at the time of screening, must be 18 to 55 years of age, inclusive, at the time of signing the informed consent document (ICD):
2. Male and female participants who are healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring.
3. Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures.
4. Participants enrolling as Japanese in Part B must have 4 biologically Japanese grandparents who were born in Japan.
5. Body mass index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).
1. Participants who have any visible skin damage or skin condition (eg sunburn,
excessively deep tans, uneven skin tones, tattoos, scars, excessive hair, numerous
freckles, or other disfigurations) in or around the application site which, in the
opinion of the investigative personnel, will interfere with the evaluation of the test
2. Participants who have a history of or have active AD/eczema/urticaria.
3. Evidence or history of clinically significant hematological, renal, endocrine,
pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or
allergic disease (including drug allergies, but excluding untreated, asymptomatic,
seasonal allergies at the time of dosing).
4. History of human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C;
positive testing for HIV, hepatitis B surface antigen (HBsAg), hepatitis B core
antibody (HBcAb) or hepatitis C antibody (HCVAb). Hepatitis B vaccination is allowed.
5. Other acute or chronic medical or psychiatric condition including recent (within the
past year) or active suicidal ideation or behavior or laboratory abnormality that may
increase the risk associated with study participation or investigational product
administration or may interfere with the interpretation of study results and, in the
judgment of the investigator, would make the participant inappropriate for entry into
6. Acute disease state (unstable medical condition such as nausea, vomiting, fever or
diarrhea, etc) within 7 days of Day 1.
7. Have undergone significant trauma or major surgery within 4 weeks of screening.
8. Use of prescription or nonprescription drugs and dietary and herbal supplements within
7 days or 5 half-lives (whichever is longer) prior to the first dose of
investigational product. (Refer to Section 6.5 for additional details).
9. Previous administration with an investigational drug within 30 days (or as determined
by the local requirement) or 5 half-lives preceding the first dose of investigational
product used in this study (whichever is longer).
10. A positive urine drug test.
11. Screening supine blood pressure (BP) ≥140 mm Hg (systolic) or ≥90 mm Hg (diastolic),
following at least 5 minutes of supine rest. If BP is ≥140 mm Hg (systolic) or ≥90 mm
Hg (diastolic), the BP should be repeated 2 more times and the average of the 3 BP
values should be used to determine the participant's eligibility.
12. Baseline 12-lead electrocardiogram (ECG) that demonstrates clinically relevant
abnormalities that may affect participant safety or interpretation of study results
(eg, baseline corrected QT (QTc) interval >450 msec, complete left bundle branch block
[LBBB], signs of an acute or indeterminate-age myocardial infarction, ST-T interval
changes suggestive of myocardial ischemia, second- or third-degree atrioventricular
[AV] block, or serious bradyarrhythmias or tachyarrhythmias). If the baseline
uncorrected QT interval is >450 msec, this interval should be rate-corrected using the
Fridericia method and the resulting QTcF should be used for decision making and
reporting. If QTc exceeds 450 msec, or QRS exceeds 120 msec, the ECG should be
repeated 2 more times and the average of the 3 QTc or QRS values should be used to
determine the participant's eligibility. Computer-interpreted ECGs should be overread
by a physician experienced in reading ECGs before excluding participants.
13. Participants with ANY of the following abnormalities in clinical laboratory tests at
screening, as assessed by the study-specific laboratory and confirmed by a single
repeat test, if deemed necessary:
- Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) level ≥1.5 ×
upper limit of normal (ULN);
- Total bilirubin level ≥1.5 × ULN; participants with a history of Gilbert's
syndrome may have direct bilirubin measured and would be eligible for this study
provided the direct bilirubin level is ≤ ULN.
14. History of alcohol abuse or binge drinking and/or any other illicit drug use or
dependence within 6 months of Screening. Binge drinking is defined as a pattern of 5
(male) and 4 (female) or more alcoholic drinks in about 2 hours. As a general rule,
alcohol intake should not exceed 14 units per week (1 unit = 8 ounces (240 mL) beer, 1
ounce (30 mL) of 40% spirit or 3 ounces (90 mL) of wine).
15. Blood donation (excluding plasma donations) of approximately 1 pint (500 mL) or more
within 60 days prior to dosing.
16. History of serious adverse reactions or hypersensitivity to any topical drug; or known
allergy to any of the test product(s) or any components in the test product(s) or
history of hypersensitivity; or allergic reactions to any of the study preparations as
described in the PF-07038124 IB.
17. Not willing to refrain from shaving, the use of depilatories or other hair-removal
activities, antiperspirants, lotions, skin creams, fragrances or perfumes, or body
oils (eg, baby oil; coconut oil), use of hair products, hair gels, and hair oil in the
treatment areas for 48 hours prior to admission to the CRU and for the duration of the
stay in the CRU.
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