This is a Phase 2 study designed to test the ability of investigational study drug ARRY-371797 to reduce pain in a postoperative pain model (third molar extraction), and to further evaluate the drug's safety. Approximately 250 subjects from the US will be enrolled in this study.

Key Inclusion Criteria:

• Scheduled for outpatient oral surgical procedure to remove 3 or more third molars, at least 1 of which is mandibular and fully or partially impacted by bone.
• Females of childbearing potential must be willing to use an acceptable method of contraception within 14 days prior to first dose of study drug until the completion of the follow-up procedures.
• Body weight >50 kg (110 lbs).
• Good health determined by medical history, physical examination, vital signs and clinical laboratory results of non-clinical significance.
• Additional criteria exist.

Key Exclusion Criteria:

• Evidence or history of clinically significant dermatologic, hematological, renal, endocrine (e.g. poorly controlled diabetes), pulmonary, gastrointestinal, cardiovascular, hepatic, neurologic, ophthalmologic, or allergic disease (including clinically significant drug allergies that could impact the conduct of this study, but excluding untreated, asymptomatic, seasonal allergies at time of study drug dosing).
• Positive urine drug screen within 28 days prior to first dose of study drug.
• Use of prohibited prescription drugs, or grapefruit juice within 7 days of first dose of study drug; prohibited medications are defined as nonsteroidal and steroidal antiinflammatory drugs, analgesics including opioids (except low dose aspirin for myocardial infarction prophylaxis), P450 CYP3A substrates or inhibitors (strong or moderate).
• Additional criteria exist.

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.