Abbott Labs ABT-874 for Treatment of Crohn’s Disease
November 11, 2004 by admin · Leave a Comment
On November 11, 2004 the results of an Abbott Labs Phase 2 Crohn’s disease clinical trial examining the safety and efficacy of ABT-874 were published in the New England Journal of Medicine. , ABT-874 is a monoclonal antibody designed to target interleukin-12 (IL-12). The authors concluded that treatment with ABT-874 may have caused clinical responses and remissions in patients with active Crohn’s disease; however, at no time were the remission rates in the ABT-874 groups significantly different from those in the placebo group. Other significant findings of note include a decrease in Th1-mediated inflammatory cytokines at the site of disease. 79 eligible patients were enrolled in this study and these participants received either ABT-874 by injection or placebo across a range of dosages and frequencies. Emerging technologies entering Phase 2 are awarded a baseline 50 efficacy points; we have are adjusted this to 40 based on our analysis of the published results.
ABT–874 is a fully human, monoclonal antibody directed against an inflammatory cytokine known as IL-12. IL-12 is a known mediator of inflammation and may be important in Crohn’s disease. Given the inflammatory nature of Crohn’s, many targets related to immune system function are being pursued. Already, approved infliximab targets the tumor necrosis factor, another member of the class of inflammatory cytokines. We have assigned ABT-874 a score of 60 for innovation status.
Crohn’s disease is a chronic, inflammatory disease of the gastrointestinal tract that affects between 500,000 and 1 million Americans. Usually diagnosed before age 30, symptoms include diarrhea, cramping, abdominal pain, weight loss, fever, and in some cases rectal bleeding. There is no cure for Crohn’s disease. Incidence estimates for this disease vary greatly, ranging from 1/100, 000 cases per year to 70/100, 000. Published studies seem to cluster around the 5-10/100, 000 range resulting in a burden of illness score of 10.
We have scored the demand/diffusion variable at 10 resulting in an overall BioHorizon Emerging Health Technology Impact Score of 30, placing ABT-874 in our Low Impact Technology category. No preliminary assessment activities are required at present.
Technology Details
Target Disease / Indication: Crohn’s Disease
Technology Classification: Drug
Body System: Gastrointestinal
Program Area: Medicine/Gastroenterology
Regulatory Status: Phase 2
BioHorizon Impact Score: 30/100 – Low