A Phase II, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel Dose Study of Two Doses of R935788 in Rheumatoid Arthritis Patients Failing to Respond to Methotrexate

• Conditions: Rheumatoid Arthritis; MedDRA version: 9.1Level: LLTClassification code 10039073Term: Rheumatoid arthritis

• Registration Number: EUCTR2008-000742-30-BG
• Lead Sponsor: Rigel Pharmaceuticals, Inc.

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2008-08-14
• Last Update Posted: 19 March 2012

Recruitment & Eligibility

• Status: ot Recruiting
• Sex: All
• Target Recruitment: 420

Inclusion Criteria

1) Patients must give written informed consent by signing an IRB/EC-approved Informed Consent Form (ICF) prior to admission to this study.
2) Males and females, 18 years of age or older, with active RA for at least 6 months prior to Day 1 dosing (functional class I–III, e.g., not bed or wheelchair-bound).
Active RA is defined as the presence of (a) = 6 swollen joints (28 joint count); AND (b) = 6 tender joints (28 joint count); AND at least one of the following (c) ESR > ULN for local laboratory, or (d) CRP > ULN for central reference laboratory.
3) Patients must have been receiving weekly MTX doses (7.5-25 mg/week) for a minimum of 3 months prior to Day 1 dosing and must be receiving a stable MTX dose, with no change in route, for the previous 6 weeks prior to Day 1 dosing. If the current MTX dose is < 10 mg/week, the patient's intolerance to = 10 mg dose must be documented in the patient’s medical history.
4) Patients must be receiving a folic or folinic acid supplementation at a stable dose for at least 6 weeks prior to Day 1 dosing.
5) Females of childbearing potential must be fully informed of the potential for R788 to adversely affect the fetus and, if sexually active, must agree to use a well established method of birth control during the study (oral contraceptive, mechanical barrier, long acting hormonal agent). These patients must not be lactating and must have a negative pregnancy test at the time of randomization and at each laboratory determination.
6) The patient must otherwise be in good health as determined by the Investigator on the basis of medical history, physical examination, and laboratory screening tests during the screening period. See exclusion criteria for specific exclusions.
7) In the Investigator’s opinion, the patient has the ability to understand the nature of the study and any hazards of participation, and to communicate satisfactorily with the Investigator and to participate in, and to comply with, the requirements of the entire protocol.

Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range

Exclusion Criteria

1) The patient has a history of, or a concurrent, clinically significant illness, medical condition (other than arthritis) or laboratory abnormality that, in the Investigator’s opinion, could affect the conduct of the study. Specifically, excluded are patients with the following:
a) uncontrolled or poorly controlled hypertension;
b) other autoimmune disease (psoriatic arthritis, lupus, mixed connective disorder) or arthritis syndromes (gout, Lyme disease, Reiter’s syndrome);
c) recent (within past 2 months prior to Day 1 dosing) serious surgery or infectious disease;
d) recent history (past 5 years prior to Day 1 dosing) of, or treatment for, a malignancy other than nonmelanomatous skin cancer, or any history of lymphoma;
e) Hepatitis B surface antigen positive;
f) Hepatitis C antibody positive; may be included if Hepatitis C RIBA negative or HCV RNA negative (qualitative);
g) interstitial pneumonitis or active pulmonary infection on chest x-ray (taken within 1 month prior to screening);
h) Tuberculosis (TB): the TB skin test should be negative (if the patient was never vaccinated, or if vaccinated more than 10 years ago; in this context negative means < 5 mm induration); if the TB skin test is positive (in an unvaccinated patient), an appropriate prophylactic anti-TB regimen must be documented: Patients should have completed anti-TB treatment 1 year prior to Day 1 dosing. For vaccinated patients, if the vaccination was less than 10 years ago and the skin test is positive, an exception may be requested if the induration is < 10mm, the chest x-ray shows no sign of TB as confirmed by a radiologist, or the patient has had a course of Isoniazid (or comparable regimen).
i) known laboratory abnormalities: ALT > 1.2 x ULN, creatinine >1.5 x ULN, an ANC < 2,500/mm3 or 2.5 x 109/L. Lymphocyte count < 600/mm3 or 0.6 x 109/L, Hgb <9 g/dL or 5 mmol/L, platelet count < 125,000/mm3 or 125 x 109/L are excluded.
2) The patient has a history of substance abuse, drug addiction or alcoholism. Patients may consume up to 4 units of alcohol per week; however, alcohol should be avoided in the 72 hours prior to lab assessments. Patients who cannot reliably comply with this should be excluded. A unit of alcohol is defined as the following: Beer=12 oz or 355 mL; wine = 5 oz or 148 mL; sweet dessert wine=3 oz or 89 mL; 80 proof distilled spirits= 1.5 oz or 44 mL.
3) The patient has been treated previously treated with R788 under a different protocol.

Study & Design

• Study Type: Interventional clinical trial of medicinal product
• Study Design: Not specified