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A Study of MabThera (Rituximab) in Patients With Rheumatoid Arthritis Who Have Had an Inadequate Response to Methotrexate

An Open Label Study to Evaluate the Safety and Efficacy of Rituximab in Patients With Active Rheumatoid Arthritis Who Have Had an Inadequate Response to Prior Treatment With Methotrexate

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00934648
Enrollment
15
Registered
2009-07-08
Start date
2007-10-31
Completion date
2010-11-30
Last updated
2014-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rheumatoid Arthritis

Brief summary

This study will evaluate the safety and efficacy of MabThera in patients with active rheumatoid arthritis who have had an inadequate response or were intolerant to treatment with methotrexate. Eligible patients will receive MabThera (1000mg by intravenous infusion) on days 1 and 15, and background methotrexate (oral or subcutaneous dose of 10-25mg weekly). After the initial study period of 24 weeks, eligible patients may receive up to 3 re-treatments with MabThera. The anticipated time on study treatment is 1-2 years, and the target sample size is \<100 individuals.

Interventions

DRUGrituximab [MabThera/Rituxan]

1000mg iv on days 1 and 15

DRUGmethotrexate

10-25mg weekly

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* adult patients, \>=18 years of age; * receiving out-patient treatment; * experienced an inadequate response to previous or current treatment with methotrexate.

Exclusion criteria

* rheumatic autoimmune disease other than RA, or significant systemic involvement secondary to RA; * history of, or current, inflammatory joint disease other than RA; * previous treatment with any cell-depleting therapies.

Design outcomes

Primary

MeasureTime frame
Percentage of Participants With an Adverse Event (AE)Week 104

Secondary

MeasureTime frameDescription
Disease Activity Score Based on 28-Joint Count (DAS28)Day 1 and Week 24DAS28 was calculated from the number of swollen joints and tender joints using the 28 joint count; the erythrocyte sedimentation rate (ESR) measured in millimeters per hour \[mm/hr\]); and the Patient's Global Assessment of disease activity (participant-rated visual analog assessment \[VAS\]) with transformed scores with transformed scores ranging 0 to 10; higher scores indicated greater affectation due to disease activity. Overall, a DAS28 score of less than or equal to (≤) 3.2 equals (=) low disease activity, and a DAS28 score of greater than (\>) 3.2 to 5.1 = moderate to high disease activity.
Percentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) CategoryScreening, Day 1, and Weeks 24 and 104DAS28-based EULAR response criteria were used to measure individual response as no response, good, and moderate, depending on the extent of change from baseline and the level of disease activity reached. Good responders: change from baseline greater than (\>)1.2 with DAS28 less than or equal to (≤)3.2; moderate responders: change from baseline \>1.2 with DAS28 \>3.2 to ≤5.1 or change from baseline \>0.6 to ≤1.2 with DAS28 ≤5.1; non-responders: change from baseline ≤0.6 or change from baseline \>0.6 and ≤1.2 with DAS28 \>5.1.
Percentage of Participants With Changes in Bone DensityScreening, Weeks 48 and 104Change in bone density in participants untreated with bisphosphonates was classified as percentage of participants with osteoporosis, osteopenia, or normal. In some participants, no determinations were available.

Countries

Morocco

Participant flow

Participants by arm

ArmCount
Rituximab 1000 mg
Participants received rituximab 1000 mg administered IV and methylprednisolone 100 mg, IV, on Days 1 and 15; all participants were receiving background MTX 10-25 mg weekly by mouth or parenterally per local prescribing guidelines.
15
Total15

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyFailure to return8
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicRituximab 1000 mg
Age, Continuous37 years
STANDARD_DEVIATION 12
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
4 / 15
serious
Total, serious adverse events
0 / 15

Outcome results

Primary

Percentage of Participants With an Adverse Event (AE)

Time frame: Week 104

Population: Safety population: included all participants who have received any part of an infusion of the study medication.

ArmMeasureValue (NUMBER)
Rituximab 1000 mgPercentage of Participants With an Adverse Event (AE)26.7 percentage of participants
Secondary

Disease Activity Score Based on 28-Joint Count (DAS28)

DAS28 was calculated from the number of swollen joints and tender joints using the 28 joint count; the erythrocyte sedimentation rate (ESR) measured in millimeters per hour \[mm/hr\]); and the Patient's Global Assessment of disease activity (participant-rated visual analog assessment \[VAS\]) with transformed scores with transformed scores ranging 0 to 10; higher scores indicated greater affectation due to disease activity. Overall, a DAS28 score of less than or equal to (≤) 3.2 equals (=) low disease activity, and a DAS28 score of greater than (\>) 3.2 to 5.1 = moderate to high disease activity.

Time frame: Day 1 and Week 24

Population: ITT population

ArmMeasureGroupValue (MEAN)Dispersion
Rituximab 1000 mgDisease Activity Score Based on 28-Joint Count (DAS28)Day 15.79 scores on a scaleStandard Deviation 1.03
Rituximab 1000 mgDisease Activity Score Based on 28-Joint Count (DAS28)Week 244.41 scores on a scaleStandard Deviation 1.88
Secondary

Percentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category

DAS28-based EULAR response criteria were used to measure individual response as no response, good, and moderate, depending on the extent of change from baseline and the level of disease activity reached. Good responders: change from baseline greater than (\>)1.2 with DAS28 less than or equal to (≤)3.2; moderate responders: change from baseline \>1.2 with DAS28 \>3.2 to ≤5.1 or change from baseline \>0.6 to ≤1.2 with DAS28 ≤5.1; non-responders: change from baseline ≤0.6 or change from baseline \>0.6 and ≤1.2 with DAS28 \>5.1.

Time frame: Screening, Day 1, and Weeks 24 and 104

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category≤3.2 at Screening0 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>3.2 and ≤5.1 at Screening22.2 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>5.1 at Screening77.8 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category≤3.2 at Day 10 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>3.2 and ≤5.1 at Day 133.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>5.1 at Day 166.7 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category≤3.2 at Week 2437.5 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>3.2 and ≤5.1 at Week 2437.5 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>5.1 at Week 2425.0 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category≤3.2 at Week 10433.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>3.2 and ≤5.1 at Week 10433.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With a DAS28 Response by European League Against Rheumatism (EULAR) Category>5.1 at Week 10433.3 percentage of participants
Secondary

Percentage of Participants With Changes in Bone Density

Change in bone density in participants untreated with bisphosphonates was classified as percentage of participants with osteoporosis, osteopenia, or normal. In some participants, no determinations were available.

Time frame: Screening, Weeks 48 and 104

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNot determined, Week 10460 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteoporosis, Screening20 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteopenia, Screening46.7 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNormal, Screening0 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNot determined, Screening33.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteoporosis, Week 486.7 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteopenia, Week 4813.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNormal, Week 486.7 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNot determined, Week 4873.3 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteoporosis, Week 1040 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityOsteopenia, Week 10440 percentage of participants
Rituximab 1000 mgPercentage of Participants With Changes in Bone DensityNormal, Week 1040 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026