Evaluation of Effectiveness of Two Dosing Regimens of Fostamatinib Compared to Placebo in Patients With Rheumatoid Arthritis (RA) Who Are Taking Methotrexate and Have Had Inadequate Response to Single TNF-alpha Antagonist (OSKIRA - 3)

AstraZeneca

Status and phase: Completed; Phase 3

Conditions: Rheumatoid Arthritis

Treatments: Drug: placebo; Drug: fostamatinib

Study type: Interventional

Funder types: Industry

Identifiers

NCT01197755

2010-020745-27 (EudraCT Number)

D4300C00003

Details and patient eligibility

About

The purpose of the study is to evaluate the effectiveness of two dosing regimens of fostamatinib compared to placebo, in patients with rheumatoid arthritis (RA) who are taking methotrexate and have had an inadequate response to a single TNF-alpha antagonist. The study will last for approximately six months.

Full description

Sub-study:

Full title: Optional Genetic Research

Date: 18 June 2010

Version: 1

Objectives: To collect and store, with appropriate consent ,DNA samples for future exploratory research into genes/genetic variation that may influence response (ie, absorption, distribution, metabolism and excretion, safety, tolerability and efficacy) to fostamatinib disodium and/or methotrexate; and/or susceptibility to, progression of and prognosis of RA

Enrollment: 323 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Active rheumatoid arthritis (RA) diagnosed after the age of 16
• Currently taking methotrexate
• 6 or more swollen joints and 6 or more tender/painful joints (from 28 joint count) and either Erythrocyte Sedimentation Rate (ESR) blood result of 28mm/h or more, or C-Reactive Protein (CRP) blood result of 10mg/L or more
• At least one of the following: documented history of positive rheumatoid factor (blood test), current presence of rheumatoid factor (blood test), radiographic erosion within 12months prior to study enrolment, presence of serum anti-cyclic citrullinated peptide antibodies (blood test)

Exclusion criteria

• Females who are pregnant or breast feeding
• Poorly controlled hypertension
• Liver disease or significant liver function test abnormalities
• Certain inflammatory conditions (other than rheumatoid arthritis), connective tissue diseases or chronic pain disorders
• Recent or significant cardiovascular disease
• Significant active or recent infection including tuberculosis
• Previous failure to respond to anakinra or previous treatment with biological agent (other than TNF alpha antagonists including rituximab, abatacept and tocilizumab)
• Severe renal impairment
• Neutropenia

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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323 participants in 3 patient groups, including a placebo group

Dosing Regimen A

Experimental group

Description:

Oral Treatment

Treatment:

Drug: fostamatinib

Drug: fostamatinib

Dosing Regimen B

Experimental group

Description:

Oral Treatment

Treatment:

Drug: fostamatinib

Drug: fostamatinib

Dosing Regimen C

Placebo Comparator group

Description:

Oral Treatment

Treatment:

Drug: placebo