Abrilumab (AMG 181) in Adults With Moderate to Severe Crohn's Disease
Crohn's Disease
About this trial
This is an interventional treatment trial for Crohn's Disease focused on measuring IBD, Crohn's Disease
Eligibility Criteria
Inclusion Criteria:
- Diagnosed with ileal, ileo-colonic, or colonic Crohn's disease for a minimum of 6 months prior to baseline
- Moderately to severely active Crohn's disease defined by a CDAI score ≥ 220 and ≤ 450 at baseline
- Evidence of active inflammation within 12 weeks prior to baseline
- Demonstrated an inadequate response to, loss of response to, or intolerance to at least one of the following agents: Immunomodulators and/or anti-tumor necrosis factor (TNF) agents or to corticosteroids (non-US sites only).
- Neurological exam free of clinically significant, unexplained signs or symptoms during screening and no clinically significant change prior to randomization
- Subject has no known history of active tuberculosis and has a negative test for tuberculosis during screening
Exclusion Criteria:
- Short bowel syndrome
- Stricture with obstructive symptoms within 3 months
- Bowel surgery within 12 weeks prior baseline, or has planned bowel surgery within 24 weeks from baseline
- Ileostomy and/or colostomy
- Any gastric or intestinal pouch
- Evidence of an infected abscess
- Bowel perforation or evidence of non-inflammatory obstruction during the 6 months prior to baseline
- Stool positive for C. difficile toxin at screening
- Any uncontrolled or clinically significant systemic disease
- Known to have tested positive for hepatitis B virus surface antigen, hepatitis C virus antibody, or human immunodeficiency virus (HIV)
- Any underlying condition that predisposes subject to infections
- Subject has malignancy (other than resected cutaneous basal or cutaneous squamous cell carcinoma, or treated in situ cervical cancer considered cured) within 5 years of baseline
- Received an anti-TNF agent, cyclosporine, mycophenolate mofetil, sirolimus (rapamycin), thalidomide, tacrolimus, topical (rectal) aminosalicylic acid (eg, mesalamine) or topical (rectal) steroids, intravenous or intramuscular corticosteroids within protocol-specified time periods.
- Any prior exposure to antagonists of integrins or integrin ligands (eg, natalizumab, efalizumab, or vedolizumab), rituximab, or TNF kinoid immunotherapies, AMG 181, or any form of cell-based transplantation
- Received treatment of infection with intravenous (within 30 days of baseline) or oral (within 14 days prior to baseline) antibiotics, antivirals, or antifungals
- Significant laboratory abnormalities
- Pregnant or breast feeding
Sites / Locations
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Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Placebo Comparator
Experimental
Experimental
Experimental
Placebo Q4W/Abrilumab 210 mg Q3M
Abrilumab 21 mg Q4W/Abrilumab 210 mg Q3M
Abrilumab 70 mg Q4W/Abrilumab 210 mg Q3M
Abrilumab 210 mg/Abrilumab 210 mg Q3M
Participants received placebo by subcutaneous injection on day 1, week 2, week 4, and every 4 weeks thereafter until week 24. During the open-label period, participants received abrilumab 210 mg once every 3 months (Q3M) for 108 weeks.
Participants received 21 mg abrilumab by subcutaneous injection on day 1, week 2, week 4, and every 4 weeks (Q4W) thereafter until week 24. During the open-label period, participants received abrilumab 210 mg once every 3 months (Q3M) for 108 weeks.
Participants received 70 mg abrilumab by subcutaneous injection on day 1, week 2, week 4, and every 4 weeks thereafter until week 24. During the open-label period, participants received abrilumab 210 mg once every 3 months (Q3M) for 108 weeks.
Participants received a single dose of 210 mg abrilumab by subcutaneous injection on day 1, followed by placebo at week 2, week 4, and every 4 weeks thereafter until week 24. During the open-label period, participants received abrilumab 210 mg once every 3 months (Q3M)for 108 weeks.