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Pharmacokinetics Study Comparing Naproxen Sodium Extended Release and Naprelan

This study has been completed.
Information provided by (Responsible Party):
Bayer Identifier:
First received: August 31, 2009
Last updated: May 19, 2014
Last verified: May 2014
To compare the pharmacokinetic profile of the proposed extended- release tablet of naproxen sodium 660 mg relative to two tablets of Naprelan 500 mg following single dose administration for 36 hours under fasted conditions

Condition Intervention Phase
Drug: Naproxen Sodium, (BAY H6689)
Drug: Naprelan, (BAY H6689)
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: An Open Label, Randomized, Two-Way Crossover Trial to Compare the Pharmacokinetic Parameters of an Extended- Release Naproxen Sodium Tablet Relative to Naprelan® Tablets Following Single Dose Administration Under Fasted Conditions

Resource links provided by NLM:

Further study details as provided by Bayer:

Primary Outcome Measures:
  • Pharmacokinetic profile of Naproxen Sodium ER 660 mg compared to Naprelan [ Time Frame: 36 hours ]

Secondary Outcome Measures:
  • To assess safety and tolerability of the extended release naproxen sodium [ Time Frame: 36 hours ]
  • To assess additional pharmacokinetic parameters [ Time Frame: 36 hours ]

Enrollment: 28
Study Start Date: April 2009
Study Completion Date: May 2009
Primary Completion Date: May 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Arm 1 Drug: Naproxen Sodium, (BAY H6689)
One dose of Naproxen sodium extended release 660 mg under fasting conditions
Active Comparator: Arm 2 Drug: Naprelan, (BAY H6689)
One dose of Naprelan 500 mg (2 tablets) under fasting conditions


Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy male and female subjects between 18 to 55 years of age inclusive with a Body Mass Index (BMI) of approximately 18 to 30 kg/m2; and a total body weight >50 kg (110 lbs)
  • Results of screening and clinical laboratory tests are within normal range or considered not clinically significant by the Principal Investigator or Sponsor
  • Female subjects of childbearing potential must be using a medically acceptable form of birth control for at least 1 month prior to screening (3 months on oral contraceptives), e.g., oral or patch contraceptives, intrauterine device, Depo-Provera®, or a double barrier and have a negative pregnancy test at Screening and Day 0 for each Dosing Period. Female subjects of non-childbearing potential must be amenorrheic for at least 2 years or had a hysterectomy and/or bilateral oophorectomy
  • Be willing to participate in all scheduled visits, treatment plan, laboratory tests and other trial procedures according to the clinical protocol

Exclusion Criteria:

  • History of hypersensitivity to aspirin (ASA), naproxen sodium, or acetaminophen, and similar pharmacological agents or components of the products
  • Females who are pregnant or lactating
  • Loss of blood in excess of 500 ml within 56 days of the first dose of trial treatment (e.g., donation, plasmapheresis or injury)
  • History of gastrointestinal bleeding or perforation, related to previous NSAID therapy. Active, or history of recurrent peptic ulcer/hemorrhage (two or more distinct episodes of proven ulceration or bleeding)
  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic diseases or malignancies
  • Positive alcohol or drug test at Screening and on Day 0 of each Dosing Period
  • Have taken any medications (except acceptable forms of birth control) within 10 days prior to dosing or throughout the trial, unless in the opinion of the Investigator and the Sponsor, the medication will not interfere with the trial procedures, data integrity, or compromise the safety of the subject
  • Have taken ASA, ASA-containing products, acetaminophen (acetyl-para-amino-phenol or APAP) or any NSAID (OTC or prescription) 7 days prior to dosing or during the treatment period, other than trial treatment
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Please refer to this study by its identifier: NCT00969449

United States, Texas
Austin, Texas, United States, 78744
Sponsors and Collaborators
Study Director: Bayer Study Director Bayer
  More Information

Additional Information:
Responsible Party: Bayer Identifier: NCT00969449     History of Changes
Other Study ID Numbers: 14566
Study First Received: August 31, 2009
Last Updated: May 19, 2014

Keywords provided by Bayer:
Naproxen Sodium

Additional relevant MeSH terms:
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Gout Suppressants
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on April 26, 2017