A Study to Learn How Different Forms of the Study Medicine Called PF-06954522 Are Taken up Into the Blood in Healthy Adults

Inclusion Criteria: * Male and female participants of non-childbearing potential aged 18 years or older who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, vital signs, and electrocardiograms. * Body mass index of 16-32 kg/m2; and a total body weight \>50 kg (110 lbs). Exclusion Criteria: * 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). * Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2, or participants with suspected MTC per the investigator's judgement. * Any medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. * Use of any prohibited prior/concomitant medication(s). * A positive urine drug test at screening or admission.