Phase II study in participants with moderately-to-severely active rheumatoid Arthritis (RA) to evaluate efficacy and safety of AZD1163.
AZD1163 is a novel bispecific antibody that inhibits the activity of extracellular peptidyl arginine deiminase 2 (PAD2) and peptidyl arginine deiminase 4 (PAD4) enzymes, which are responsible for protein citrullination. In RA, citrullinated proteins lead to the production of pathogenic anti-citrullinated peptide antibodies (ACPA). This is a Phase II, randomised, double-blind, multicentre, 4 arm placebo-controlled study designed to evaluate the efficacy and safety of AZD1163 in ACPA + adults with moderate-to-severely active RA on standard of care (SoC) (conventional synthetic disease-modifying antirheumatic drugs \[csDMARDs\] or tumour necrosis factor inhibitor \[TNFi\] +/- csDMARD). The study will have a screening period followed by a randomisation period wherein approximately 320 participants will be randomised in a 1:1:1:1 ratio to receive study intervention. Participants will receive subcutaneous (SC) injection of one of three different doses of AZD1163 or placebo, along with SoC until Week 24 followed by a safety follow-up (FU) period of 28 days.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
320
Participants will receive SC injection of one of three different doses of AZD1163 in combination with SoC (csDMARD or TNFi +/- csDMARDSoC) until Week 24.
Participants will receive SC injection of placebo matched to AZD1163 in combination with SoC (csDMARD or TNFi +/- csDMARDSoC) until Week 24.
Change From Baseline in Disease Activity Score-C-Reactive Protein (DAS28-CRP) at Week 12
Change from baseline in DAS28-CRP at Week 12.
Time frame: Week 12
Percentage of Participants Achieving American College of Rheumatology Response Criteria 20 (ACR20) at Week 12
Proportion of participants achieving a 20% improvement in ACR response criteria at Week 12.
Time frame: Week 12
Percentage of Participants Achieving ACR50 at Week 12
Proportion of participants achieving a 50% improvement in ACR response criteria at Week 12.
Time frame: Week 12
Change From Baseline in Clinical Disease Activity Index (CDAI) at Week 12
Change from baseline in CDAI at Week 12.
Time frame: Week 12
Change From Baseline in Simplified Disease Activity Index (SDAI) at Week 12
Change from baseline in SDAI at Week 12.
Time frame: Week 12
Summary statistics to evaluate the PK of AZD1163
AZD1163 concentrations in serum
Time frame: Week 0 to Week 24 and Follow-Up
Summary statistics to evaluate the immunogenicity of AZD1163
ADA (incidence, prevalence, and titres)
Time frame: Week 0 to Week 24 and Follow-Up
AstraZeneca Clinical Study Information Center
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Glendale, Arizona, United States
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Prescott Valley, Arizona, United States
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La Jolla, California, United States
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