Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

Methotrexate (Rheumatrex) High Dose Special Investigation (Regulatory Post Marketing Commitment Plan)

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.
 
ClinicalTrials.gov Identifier: NCT01414257
Recruitment Status : Completed
First Posted : August 11, 2011
Results First Posted : August 6, 2018
Last Update Posted : August 6, 2018
Sponsor:
Information provided by (Responsible Party):
Pfizer

Brief Summary:

This Investigation is to be performed for the purpose of assessing the following information in the long-term post-marketing daily medical practice in the patients who receive REUMATOLEX 2 mg Capsule for the treatment of Rheumatoid Arthritis (RA) at the dose higher than 8 mg/week.

  1. Condition of occurrence of ADRs
  2. Factors considered to affect safety
  3. Verification of efficacy

Condition or disease Intervention/treatment
Arthritis Rheumatoid High Dose Drug: Methotrexate (MTX)

Detailed Description:
Implemented as a Special Investigation by Central Registration System

Layout table for study information
Study Type : Observational
Actual Enrollment : 2860 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Rheumatrex High Dose Special Investigation (Regulatory Post Marketing Commitment Plan)
Actual Study Start Date : May 2011
Actual Primary Completion Date : March 2014
Actual Study Completion Date : March 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Arthritis

Group/Cohort Intervention/treatment
Methotrexate (MTX)
Patients who receive the MTX Preparation at the dose higher than 8 mg/week for the treatment of Rheumatoid Arthritis.
Drug: Methotrexate (MTX)
Methotrexate should be administered at the weekly dose of 6 mg orally once a week or twice or three times a week by subdividing the weekly dose into the relevant number of portions. When administering the subdivided doses, MTX should be administered at the interval of 12 hours on Day 1 to Day 2. When the weekly dose is subdivided into two portions, suspend the administration for the remaining 6 days. When the weekly dose is subdivided into three portions, suspend the administration on the remaining 5 days. Repeat this weekly cycle. The dose should be adjusted as appropriate depending on the age, symptom, tolerability, and response to the MTX Preparation in individual patients. The weekly dose should not be higher than 16 mg.
Other Name: Rheumatrex




Primary Outcome Measures :
  1. Number of Participants With Treatment-Related Adverse Events [ Time Frame: 24 Weeks ]
    A treatment-related adverse event was any untoward medical occurrence attributed to methotrexate in a participant who received methotrexate.

  2. Disease Activity Score (DAS28)-4ESR [ Time Frame: Baseline and 24 Weeks ]
    Disease activity score based on 28-joint count and erythrocyte sedimentation rate (4 variables) (DAS28-4 [ESR]) was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joints count, ESR (mm/hour) and visual analogue scale (VAS) of general health assessed by participant or investigator. Higher score indicated more disease activity. The total scale range of DAS28-4 (ESR) , minimum is 0.0 and maximum can not be specified. DAS28-4 (ESR) >5.1 indicated high disease activity, ?3.2 to ?5.1 indicated moderate disease activity, <3.2 indicated low disease activity, and <2.6 indicated remission.

  3. Disease Activity Score (DAS28)-4CRP [ Time Frame: Baseline and 24 Weeks ]
    Disease activity score based on 28-joint count and C-reactive protein (4 variables) (DAS28-4 [CRP]) was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joints count, C-reactive protein (CRP, mg/dL) and VAS of general health. The total scale range of DAS28-4 (ESR) , minimum is 0.0 and maximum can not be specified. DAS28-4 (CRP) >4.1 indicated high disease activity, ≥2.7 to 4.1 indicated moderate disease activity, <2.7 indicated low disease activity, and <2.3 indicated remission.

  4. Change From Baseline in Disease Activity Score (DAS28)-4ESR [ Time Frame: Baseline and 24 Weeks ]
    Disease activity score based on 28-joint count and erythrocyte sedimentation rate (4 variables) (DAS28-4 [ESR]) was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joints count, ESR (mm/hour) and visual analogue scale (VAS) of general health assessed by participant or investigator. Mean change from baseline in the DAS28-4 (ESR) at Week 24 is calculated. The total scale range can not be specified.

  5. Change From Baseline in Disease Activity Score (DAS28)-4CRP [ Time Frame: Baseline and 24 Weeks ]
    Disease activity score based on 28-joint count and C-reactive protein (4 variables) (DAS28-4 [CRP]) was calculated from swollen joint count (SJC) and tender joint count (TJC) using 28 joints count, C-reactive protein (CRP, mg/dL) and VAS of general health. Mean change from baseline in the DAS28-4 (CRP) at Week 24 is calculated. The total scale range can not be specified.


Secondary Outcome Measures :
  1. Number of Participants With Treatment-Related Serious Adverse Events [ Time Frame: 24 Weeks ]
    A treatment-related adverse event was any untoward medical occurrence attributed to methotrexate in a participant who received methotrexate. A treatment-related serious adverse event was a treatment-related adverse event resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; lifethreatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Relatedness to methotrexate was assessed by the investigator.

  2. Number of Participants With Treatment Related Pre-specified Important Serious Adverse Events [ Time Frame: 24 Weeks ]
    Pre-specified important adverse events were 1) Interstitial pneumonia, 2) Pulmonary fibrosis, 3) Hepatic impairment, 4) Renal impairment, 5) Hematopoietic disorder, 6) Infection, and 7) Lymphoma. A treatment-related adverse event was any untoward medical occurrence attributed to methotrexate in a participant who received methotrexate. A treatment-related serious adverse event was a treatment-related adverse event resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; lifethreatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Relatedness to methotrexate was assessed by the investigator.

  3. Clinical Efficacy Rate [ Time Frame: 24 Weeks ]
    Clinical efficacy rate, which was defined as the percentage of participants who achieved clinical effectiveness over the total number of assesable effectiveness analysis population, was presented along with the corresponding 2-sided 95% CI. Clinical effectiveness of methotrexate was assessed as "effective" or "ineffective" by the investigator. The assessment was based on the baseline condition of disease control and degree of alleviation from baseline in clinical symptoms and laboratory data.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   17 Years to 99 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients who receive the MTX Preparation at the dose higher than 8 mg/week for the treatment of Rheumatoid Arthritis.
Criteria

Inclusion Criteria:

  • Patients need to be administered Rheumatrex in order to be enrolled in the survey
  • Patients who receive the Rheumatrex at the dose higher than 8 mg/week for the treatment of Rheumatoid Arthritis

Exclusion Criteria:

  • Patients who have been treated with Rheumatrex at the dose higher than 8 mg/week since the days when the high dose therapy for RA was not approved
  • Patients who have been treated MTX other than Rheumatrex administered Rheumatrex

Information from the National Library of Medicine

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 ClinicalTrials.gov identifier (NCT number): NCT01414257


Locations
Layout table for location information
Japan
University of Occupational and Environmental Health Hospital
Kitakyushu-shi, Fukuoka-ken, Japan
Sponsors and Collaborators
Pfizer
Investigators
Layout table for investigator information
Study Director: Pfizer CT.gov Call Center Pfizer

Additional Information:
Layout table for additonal information
Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT01414257     History of Changes
Other Study ID Numbers: B3211003
First Posted: August 11, 2011    Key Record Dates
Results First Posted: August 6, 2018
Last Update Posted: August 6, 2018
Last Verified: November 2017
Keywords provided by Pfizer:
Rheumatrex
High Dose
Additional relevant MeSH terms:
Layout table for MeSH terms
Arthritis
Joint Diseases
Musculoskeletal Diseases
Methotrexate
Abortifacient Agents, Nonsteroidal
Abortifacient Agents
Reproductive Control Agents
Physiological Effects of Drugs
Antimetabolites, Antineoplastic
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Dermatologic Agents
Enzyme Inhibitors
Folic Acid Antagonists
Immunosuppressive Agents
Immunologic Factors
Antirheumatic Agents
Nucleic Acid Synthesis Inhibitors