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A Study to Evaluate the Safety and Efficacy of ASP015K in Moderate to Severe Rheumatoid Arthritis

This study has been completed.
Information provided by (Responsible Party):
Astellas Pharma Inc ( Astellas Pharma Global Development, Inc. ) Identifier:
First received: March 27, 2012
Last updated: December 1, 2014
Last verified: December 2014
The purpose of this study is to evaluate the safety and efficacy of ASP015K in moderate to severe rheumatoid arthritis (RA) subjects

Condition Intervention Phase
Arthritis, Rheumatoid
Drug: ASP015K
Drug: Placebo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 2b, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled, Dose-Finding, Multi-Center Study to Evaluate the Safety and Efficacy of ASP015K in Moderate to Severe Rheumatoid Arthritis Subjects

Resource links provided by NLM:

Further study details as provided by Astellas Pharma Inc:

Primary Outcome Measures:
  • Percentage of subjects achieving American College of Rheumatology Criteria 20 (ACR 20) response [ Time Frame: Week 12 ]
  • Trough plasma concentration of ASP015K and metabolite(s) [ Time Frame: up to Week 12 (6 time points) ]

Secondary Outcome Measures:
  • Percentage of subjects achieving ACR 50 response [ Time Frame: Week 12 ]
  • Percentage of subjects achieving ACR 70 response [ Time Frame: Week 12 ]
  • Change from baseline in Disease Activity Score using 28 joint count and C Reactive Protein (DAS28-CRP) [ Time Frame: Baseline and Week 12 ]

Enrollment: 289
Study Start Date: June 2012
Study Completion Date: December 2013
Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: ASP015K lowest dose Drug: ASP015K
Experimental: ASP015K low dose Drug: ASP015K
Experimental: ASP015K medium dose Drug: ASP015K
Experimental: ASP015K high dose Drug: ASP015K
Placebo Comparator: Placebo Drug: Placebo

Detailed Description:
Subjects will take ASP015K or matching placebo orally with food for 12 weeks after randomization. Potential subjects who have previously used disease-modifying antirheumatic drugs (DMARDs) and/or biologic agents may be eligible to participate after completing a washout period. Subjects who complete the 12-week dosing period in this study may be eligible to participate in a long-term, open-label Extension Study.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • ≥ 6 tender/painful joints; ≥ 6 swollen joints
  • C-Reactive Protein (CRP) of ≥ 0.8 mg/dL or Erythrocyte Sedimentation Rate (ESR) of ≥ 28 mm/hr
  • Subject meets the ACR 1991 Revised Criteria for Global Functional Status in RA Class I, II or III at Screening and Baseline
  • Use of non-steroidal anti-inflammatory drugs [NSAIDs], cyclooxygenase-2 (COX-2) inhibitors, or oral corticosteroids for the treatment of RA must be stable for at least 28 days prior to start of the study
  • Male and female subjects must be willing to comply with contraception requirements as well as restrictions regarding egg and sperm donation
  • Female subject must not be breastfeeding at Screening or during the study period, and for 60 days after the final study drug administration
  • Subject agrees not to participate in another interventional study while on treatment

Exclusion Criteria:

  • Positive Mycobacterium tuberculosis (TB) test within 90 days of Screening
  • Abnormal chest x-ray indicative of an acute or chronic infectious process or malignancy
  • Receipt of live or live attenuated virus vaccination within 30 days prior to the first dose of study drug
  • Known history of positive test for hepatitis B surface antigen (HBsAg) or hepatitis C antibody or history of a positive test for human immunodeficiency virus (HIV) infection
  • History of any other autoimmune rheumatic disease, other than Sjogren's syndrome
  • Previous history of clinically significant infections or illness (requiring hospitalization or requiring parenteral therapy) within 90 days of the Baseline visit, or a history of any illness that would preclude participation in the study
  • History of any malignancy, except for successfully treated basal or squamous cell carcinoma of the skin or in-situ carcinoma of the cervix.
  • Does not meet specified washout criteria for the following RA medications: gold, azathioprine, minocycline, penicillamine, etanercept, certolizumab, adalimumab, golimumab, infliximab, cyclophosphamide, and leflunomide
  • Previous intolerance to Janus kinase (JAK) inhibitors
  • Receipt of intra-articular or parenteral corticosteroid within 28 days prior to the first dose of study drug or is currently taking > 30 mg oral morphine (or narcotic equivalent) per day
  • Receipt of plasma exchange therapy within 60 days prior to the start of study drug
  • Receipt of any investigational agent within 30 days or 5 half-lives, whichever is longer, prior to first dose of study drug
  • Receipt of medications that are CYP3A substrates with narrow therapeutic range within 14 days prior to first dose of study drug
  • History of heart failure, defined as New York Heart Association (NYHA) grade 3 or greater
  • History of long QT syndrome or prolonged QT interval
  • Any ongoing severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, metabolic, endocrine, pulmonary, cardiac, neurological, or infectious disease, or any ongoing illness which would make the subject unsuitable for the study
  • Subject has any condition possibly affecting oral absorption (e.g., gastrectomy, other malabsorption syndromes, or clinically significant diabetic gastroenteropathy)
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01565655

  Show 38 Study Locations
Sponsors and Collaborators
Astellas Pharma Global Development, Inc.
Study Director: Senior Medical Director Astellas Pharma Global Development
  More Information

Responsible Party: Astellas Pharma Global Development, Inc. Identifier: NCT01565655     History of Changes
Other Study ID Numbers: 015K-CL-RA22
2011-006020-20 ( EudraCT Number )
Study First Received: March 27, 2012
Last Updated: December 1, 2014

Keywords provided by Astellas Pharma Inc:
Rheumatoid Arthritis

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
Immune System Diseases processed this record on April 21, 2017