Naproxen Sodium/Acetaminophen Proof of Concept Dosing Study

Randomized, Double-Blind, Placebo And Active Controlled, Study To Evaluate Two Strengths Of Concomitantly Dosed Naproxen Sodium With Acetaminophen, Compared With Naproxen Sodium and Hydrocodone/Acetaminophen In Postoperative Dental Pain

Study assessing efficacy and safety of concomitantly dosed naproxen sodium with acetaminophen, compared with naproxen sodium, hydrocodone/acetaminophen and Placebo in a postoperative dental pain.

This is a randomized, double-blind, placebo- and active-controlled, parallel-group study to evaluate the analgesic efficacy and safety of concomitantly administered naproxen sodium 440 mg with acetaminophen 1000 mg and concomitantly administered naproxen sodium 220 mg with acetaminophen 650 mg, compared with a fixed combination of hydrocodone 10 mg/acetaminophen 650 mg, naproxen sodium 440 mg, and placebo over a twelve-hour period after surgical extraction of four third molars.

Inclusion Criteria:

1. Males of females 17-50 years old
2. Weigh 100 pounds or greater and have a body mass index (BMI) of 18.5 to 35 (inclusive) at screening
3. Surgical removal of up to four third molars, of which, two must be mandibular impactions
4. Meets requirements for post -surgical pain level
5. Females of childbearing potential and males agree to contraceptive requirements of study
6. Have a negative urine drug screen at screening, and on day of surgical procedure

Exclusion Criteria:

1. Pregnant female, breastfeeding, trying to become pregnant or male with pregnant partner or partner currently trying to become pregnant
2. Have known allergy or hypersensitivity to naproxen or other NSAIDS, including aspirin, or to acetaminophen, tramadol, hydrocodone or other opioids
3. Not able to swallow large tablets or capsules
4. History of any condition (s) in investigator's opinion, may jeopardize subject safety, well-being and integrity of study
5. Use analgesics 5 or more times per week
6. History of chronic tranquilizer use, heavy drinking, substance abuse as judged by investigator site staff within last 5 years
7. Use of immunosuppressive drugs within 2 weeks of screening
8. History of peptic ulcer disease or gastrointestinal bleeding in the last two years or hematologic bleeding