| Eligibility |
Inclusion Criteria
1. Male and female participants 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 overtly healthy as determined by medical
evaluation including medical history, physical examination, and laboratory tests.
3. Participants who are willing and able to comply with all scheduled visits, treatment
plan, laboratory tests, lifestyle considerations, and other study procedures. Weight:
4. Body mass index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).
5. Capable of giving signed informed consent
Exclusion Criteria:
1. 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).
2. Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy).
3. 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). A positive serology for hepatitis B
surface antibody (HBsAb) as a result of Hepatitis B vaccination is allowed.
4. 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
this study.
5. History of allergy or hypersensitivity to fesoterodine fumarate or tolterodine
tartrate, soya, or any of the excipients in the investigational drug product.
6. History of uncontrolled narrow angle glaucoma, myasthenia gravis, gastric retention,
severe ulcerative colitis and toxic megacolon.
7. Evidence or history of clinically significant urologic disease: urinary retention,
obstructive disturbance of bladder emptying, micturition disturbance, nocturia or
pollakiuria (eg, benign prostate hyperplasia, urethral stricture, recurrent urinary
tract infections).
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.
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, as confirmed by a single repeat.
11. Screening supine blood pressure (BP) greater than or equal to 140 mm Hg (systolic) or
greater than or equal to 90 mm Hg (diastolic), following at least 5 minutes of supine
rest. If BP is greater than or equal to 140 mm Hg (systolic) or greater than or equal
to 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. Screening 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 greater than 450 msec, this interval should be
rate-corrected using the Fridericia method and the resulting corrected QT (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:
14. Screening estimated glomerular filtration rate (eGFR) is less than or equal to 90 mL
/min/1.73 m2 for Chronic Kidney Disease Epidemiology Collaboration [CKD-EPI] formula).
15. 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).
16. Blood donation (excluding plasma donations) of approximately 1 pint (500 mL) or more
within 60 days prior to dosing.
17. Unwilling or unable to comply with the criteria in the Lifestyle Considerations
section of this protocol.
18. Investigator site staff members directly involved in the conduct of the study and
their family members, site staff members otherwise supervised by the investigator, or
Pfizer employees, including their family members, directly involved in the conduct of
the study.
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