Open Label, Dose-Regimen Study Evaluating Etanercept 50 mg Once-Weekly In Japanese Subjects With RA

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00418717
Recruitment Status : Completed
First Posted : January 5, 2007
Results First Posted : May 4, 2010
Last Update Posted : March 2, 2012
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer

Brief Summary:
The primary purpose of this study is to evaluate the safety and efficacy of a once-weekly dose of etanercept for rheumatoid arthritis. Currently, patients in Japan can only use 25 mg etanercept two times a week. If a once-a-week regimen of 50 mg is approved, this would be more convenient for most patients. This once-weekly regimen is used in countries outside of Japan.

Condition or disease Intervention/treatment Phase
Arthritis, Rheumatoid Drug: etanercept Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 42 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-label, Multicenter, Dose-regimen Study Evaluating the Efficacy and Safety of Etanercept 50 mg Once-weekly Dose in Japanese Subjects With Rheumatoid Arthritis
Study Start Date : February 2007
Actual Primary Completion Date : December 2007
Actual Study Completion Date : December 2007

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Drug Information available for: Etanercept

Arm Intervention/treatment
Experimental: 1
Arm 1: Period A-25mg BW; Arm 1: Period B-50mg QW
Drug: etanercept
Period A: Weeks 1-4: Etanercept 25mg (25mg vial)bi-weekly (BW); Period B: Weeks 5-12: Etanercept 50mg (50mg vial) weekly (QW)

Primary Outcome Measures :
  1. Disease Activity Score Using 28-joint Count and Erythrocyte Sedimentation Rate (4 Variables) (DAS28-4ESR) by Treatment Period. [ Time Frame: weeks 4 and 12 ]
    DAS28-4ESR is a clinical index of rheumatoid arthritis disease activity based on information from swollen joints, tender joints, acute phase response (Erythrocyte Sedimentation Rate) and general health. DAS28-4ESR scores range from 0 - 10, where a score of less than or equal to 3.2 implies well controlled disease and greater than or equal to 5.1 implies active disease. In this analysis, the DAS28-4ESR is compared for 2 different treatment regimens (used sequentially by the same patient population): Treatment Period A: ETN 25 mg BW (at week 4) vs Treatment Period B: ETN 50 mg QW (at week 12).

Secondary Outcome Measures :
  1. Area Under the Concentration-Time Curve (AUC) [ Time Frame: 7 days after week 4 and 7 days after week 12 ]
    AUC is a measure of the serum concentration of the drug over time. It is used to characterize drug absorption. In this analysis, the AUC is compared for 2 different treatment regimens (used sequentially by the same patient population): Treatment Period A: ETN 25 mg BW (at week 4) vs Treatment Period B: ETN 50 mg QW (at week 12). Blood samples were taken on day 0 of PK analysis and collected every day after for 7 days for weeks 4 and 12.

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Ages Eligible for Study:   20 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Main Inclusion Criteria:

  • Subjects of Japanese ancestry and living in Japan.
  • Subjects who are receiving the approved dose of 25 mg etanercept BIW for at least 6 months and have stable disease activity, as determined by investigator's judgment for 3 months before test articles administration.
  • Subjects who have mildly active rheumatoid arthritis as demonstrated by 5 swollen joints and 5 tender/painful joints.

Main Exclusion Criteria:

  • Prior treatment with Disease Modifying Anti-Rheumatic Drugs (DMARDs) and/or methotrexate (MTX) within 6 months of the baseline visit.
  • Subjects considered being in disease remission, per investigator's judgment.
  • Received other biological drugs, rituximab, anti-CD-4 agents, or diphtheria interleukin-2 fusion protein (DAB-IL-2) within 6 months prior to baseline.

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To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00418717

Nunoya-cho Goshogawara, Aomori, Japan, 037-0053
Kokubu, Kurume, Fukuoka, Japan, 839-0863
Inomachi Takasaki, Gunma, Japan, 370-0004
Higashiuneno Kawanishi, Hyogo, Japan, 666-0195
Mukogawa-cho, Nishinomiya, Hyogo, Japan, 663-8501
Kamiyokoba, Tsukuba, Ibaraki, Japan, 305-0854
Douhaku, Suzuka, Mie, Japan, 513-0824
Hazama, Isobe-cho, Shima, Mie, Japan, 517-0214
Hisai Myojin-cho, Tsu, Mie, Japan, 514-1101
Yamato, Sasebo, Nagasaki, Japan, 857-1195
Higashizuka, Kurashiki, Okayama, Japan, 712-8044
Toranomon, Minato-ku, Tokyo, Japan, 105-0001
Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Study Director: Medical Monitor Wyeth is now a wholly owned subsidiary of Pfizer

Responsible Party: Wyeth (Registry Contact: Clinical Trial Registry Specialist), Wyeth Identifier: NCT00418717     History of Changes
Other Study ID Numbers: 0881A1-321
First Posted: January 5, 2007    Key Record Dates
Results First Posted: May 4, 2010
Last Update Posted: March 2, 2012
Last Verified: March 2012

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
Immune System Diseases
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Gastrointestinal Agents
Immunosuppressive Agents
Immunologic Factors