Efficacy and Safety of MT-5547 in Patients With Osteoarthritis Accompanied by Moderate to Severe Pain
A Phase 2/3 (Placebo-Controlled, Double-Blind, Comparative) Study on MT-5547 in Patients With Osteoarthritis Accompanied by Moderate to Severe Pain
A Phase 2/3 (Placebo-Controlled, Double-Blind, Comparative) Study on MT-5547 in Patients With Osteoarthritis Accompanied by Moderate to Severe Pain
Sponsor study identifier
interventional
626
1 country
27
Study Start
September 8, 2017
Actual (reported)Primary Completion
December 14, 2019
Actual (reported)Study Completion
March 9, 2021
Actual (reported)The objective of this study is to verify the superiority of 16 weeks of MT-5547 treatment to placebo, as evidenced by the WOMAC pain score (the efficacy outcome measure), in patients with osteoarthritis of the knee or hip. Additional objectives of the study are to investigate the efficacy, safety, and pharmacokinetics of MT-5547 in long-term use.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
March 9, 2021
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
August 7, 2017
Actual (reported)August 10, 2017
Actual (reported)September 8, 2017
Actual (reported)December 14, 2019
Actual (reported)March 9, 2021
Actual (reported)May 17, 2023
Actual (reported)WOMAC Pain Score (Change From Baseline at Week 16)
The WOMAC is a scale that is used to assess the activities of daily living in osteoarthritis, the WOMAC pain subscale score was defined as the average of 5 items (during walking, using stairs, in bed, sitting or lying, and standing). The participants assessed the past 48 hours on an 11-point numeric rating scale, from 0 (no pain) to 10 (worst pain imaginable), where higher scores indicated worse pain.
Baseline to Week 16
WOMAC Physical Function Score (Change From Baseline at Week 16)
Baseline to Week 16
WOMAC Pain Score (Change From Baseline at Each Assessment Time Point)
Baseline to Week 68
WOMAC Physical Function Score (Change From Baseline at Each Assessment Time Point)
Baseline to Week 68
WOMAC Stiffness Score (Change From Baseline at Each Assessment Time Point)
Baseline to Week 68
WOMAC Total Score (Change From Baseline at Each Assessment Time Point)
Baseline to Week 68
MT-5547 Subcutaneous (SC) dosing regimen 1. Naproxen-matching placebo oral after Week 16.
MT-5547 SC dosing regimen 2. Naproxen-matching placebo oral after Week 16.
MT-5547-matching placebo SC dosing. Naproxen oral after Week 16.
Solution for injection in pre-filled syringe
Solution for injection in pre-filled syringe
Investigational Site
Aichi, Japan
Investigational Site
Aomori, Japan
Investigational Site
Chiba, Japan
Investigational Site
Ehime, Japan
Investigational Site
Fukui, Japan
Investigational Site
Fukuoka, Japan
Investigational Site
Fukushima, Japan
Investigational Site
General Manager
Tanabe Pharma Corporation
626 participants (actual enrollment reported by the registry).
First Submitted
August 7, 2017
First Posted
August 10, 2017
Study Start
September 8, 2017
Actual (reported)Contact the study team to confirm eligibility.
Gunma, Japan
Investigational Site
Hiroshima, Japan
Investigational Site
Hokkaido, Japan
Investigational Site
Hyōgo, Japan
Investigational Site
Ibaraki, Japan
Investigational Site
Kagoshima, Japan
Investigational Site
Kanagawa, Japan
Investigational Site
Kumamoto, Japan
Investigational Site
Kyoto, Japan
Investigational Site
Mie, Japan
Investigational Site
Miyagi, Japan
Investigational Site
Miyazaki, Japan
Investigational Site
Osaka, Japan
Investigational Site
Ōita, Japan
Investigational Site
Saitama, Japan
Investigational Site
Shiga, Japan
Investigational Site
Shizuoka, Japan
Investigational Site
Tokyo, Japan
Investigational Site
Yamagata, Japan
Investigational Site
Yamaguchi, Japan
Primary Completion
December 14, 2019
Actual (reported)Study Completion
March 9, 2021
Actual (reported)Last Updated
January 7, 2026
Results First Posted
May 17, 2023
Record last verified: 2025-12
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Source: ClinicalTrials.gov.
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