- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04192617
A Study to Evaluate the Safety and Efficacy of SM03 in Patients With Rheumatoid Arthritis Receiving Methotrexate
A Randomized,Placebo Controlled, Double-blind, Parallel Group, Phase II Study to Evaluate the Efficacy and Safety of SM03, Compared to Placebo, in Patients With Moderate-to-Severe Active Rheumatoid Arthritis Receiving Methotrexate
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
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Beijing, China, 100032
- Peking Union Medical College Hostipal
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adult patients 18-75 years of age.
- Rheumatoid arthritis (RA) for ≥ 12 months, diagnosed according to the revised 1987 American College of Rheumatology (ACR) criteria for the classification of rheumatoid arthritis.
- Moderate to severe active RA with swollen joint count (SJC) ≥ 8 (66 joint count), and tender joint count (TJC) ≥ 8 (68 joint count) at screening and baseline.
- At screening, either C-reactive protein (CRP) ≥ 0.6 mg/dL (6 mg/L), or Erythrocyte sedimentation rate (ESR) ≥ 28 mm/hour, or Morning stiffness of joint for ≥ 45 minutes
- Inadequate response to methotrexate, having received and tolerated at a dose of 7.5-20 mg/week for ≥ 12 weeks, at a stable dose over the past 4 weeks.
Exclusion Criteria:
- Rheumatic autoimmune disease other than RA.
- Use of any biological DMARDs for RA within past 6 months.
- Concurrent treatment with any Disease Modifying Anti-Rheumatic Drug (DMARD) other than methotrexate
- Active infection, or history of serious or chronic infection
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: SM03 600 mg*2
SM03: 600 mg intravenous (IV) on week 0,2, and week 12,14; placebo: 600 mg intravenous (IV) on week 4 and16; Methotrexate: 7.5-20 mg/wk oral.
|
SM03: 600 mg intravenous (IV)
Placebo: 600 mg intravenous (IV)
methotrexate: 7.5-20 mg/week oral
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Experimental: SM03 600 mg*3
SM03: 600 mg intravenous (IV) on week 0,2, 4, and week 12,14,16; Methotrexate: 7.5-20 mg/wk oral.
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SM03: 600 mg intravenous (IV)
methotrexate: 7.5-20 mg/week oral
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Placebo Comparator: placebo*3
placebo: 600 mg intravenous (IV) on week 0,2, 4, and week 12,14,16; Methotrexate: 7.5-20 mg/wk oral.
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Placebo: 600 mg intravenous (IV)
methotrexate: 7.5-20 mg/week oral
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants With American College of Rheumatology (ACR) 20 Response at Week 24
Time Frame: Week 24
|
To achieve an ACR20 required at least a 20% improvement compared with Baseline in both tender joint counts (68 joints assessed for tenderness) and swollen joint counts (66 joints assessed for swelling), as well as a 20% improvement in three of the following five additional measurements:
|
Week 24
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants With American College of Rheumatology (ACR) 20 Response at Week 4,8,12, 16
Time Frame: Week 4,8,12,16
|
To achieve an ACR20 required at least a 20% improvement compared with Baseline in both tender joint counts (68 joints assessed for tenderness) and swollen joint counts (66 joints assessed for swelling), as well as a 20% improvement in three of the following five additional measurements:
|
Week 4,8,12,16
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Percentage of Participants With an ACR50 Response at Week 24
Time Frame: Week 24
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To achieve an ACR50 required at least a 50% improvement compared with Baseline in both tender joint counts (68 joints assessed for tenderness) and swollen joint counts (66 joints assessed for swelling), as well as a 50% improvement in three of the following five additional measurements:
|
Week 24
|
Percentage of Participants With an ACR70 Response at Week 24
Time Frame: Week 24
|
To achieve an ACR70 required at least a 70% improvement compared with Baseline in both tender joint counts (68 joints assessed for tenderness) and swollen joint counts (66 joints assessed for swelling), as well as a 70% improvement in three of the following five additional measurements:
|
Week 24
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Change From Baseline in Disease Activity Score (DAS28-ESR) at Week 24
Time Frame: Baseline and Week 24
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The DAS28 is a composite score to measure disease activity in patients with rheumatoid arthritis, derived from the following variables:
The DAS28 score ranges from zero to ten. A DAS28 score above 5.1 means high disease activity whereas a DAS28 less than or equal to 3.2 indicates low disease activity. Remission is achieved by a DAS28 lower than 2.6. |
Baseline and Week 24
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Percentage of Participants With European League Against Rheumatism (EULAR) Response at Week 24
Time Frame: Week 24
|
A EULAR response reflects an improvement in disease activity and an attainment of a lower degree of disease activity based on the DAS28 score. The DAS28 score ranges from 0-10, with higher scores indicating more disease activity. A Good Response is defined as an improvement (decrease) in the DAS28 of more than 1.2 compared with Baseline and attainment of a DAS28 score of less than or equal to 3.2. A Moderate Response is defined as either: an improvement (decrease) in the DAS28 of greater than 0.6 and less than or equal to 1.2 from Baseline and attainment of a DAS28 score of less than or equal to 5.1 or, an improvement (decrease) in the DAS28 of more than 1.2 from Baseline and attainment of a DAS28 score of greater than 3.2. No Response is defined as either an improvement (decrease) in the DAS28 of less than or equal to 0.6, or an improvement (decrease) in the DAS28 of greater than 0.6 and less than or equal to 1.2 and attainment of a DAS28 of more than 5.1. |
Week 24
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Percentage of Participants With Adverse Events
Time Frame: Week 0 to 24
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Percentage of participants who reported an AE or SAE, a drug-related AE, who had an acute infusion reaction, an AE leading to study drug discontinuation, with an infection or serious infection, or who died.
|
Week 0 to 24
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Immune System Diseases
- Autoimmune Diseases
- Joint Diseases
- Musculoskeletal Diseases
- Rheumatic Diseases
- Connective Tissue Diseases
- Arthritis
- Arthritis, Rheumatoid
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Nucleic Acid Synthesis Inhibitors
- Enzyme Inhibitors
- Antirheumatic Agents
- Antimetabolites, Antineoplastic
- Antimetabolites
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Dermatologic Agents
- Reproductive Control Agents
- Abortifacient Agents, Nonsteroidal
- Abortifacient Agents
- Folic Acid Antagonists
- Methotrexate
Other Study ID Numbers
- SM03-RA-II-V3.3
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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