Inflammatory Bowel Disease (IBD) is a hallmark of leukocyte infiltration, followed by the release of cytokines and interleukins. Disease progression to Ulcerative Colitis (UC) or Crohn's Disease (CD) remained largely incurable. The genetic and environmental factors disrupt enteral bacteria in the gut, which hampers the intestinal repairing capability of damaged mucosa. Commonly practiced pharmacological therapies include 5-aminosalicylic acid with corticosteroids and tumor necrosis factor (TNF)-α. New interventions such as CDP571 and TNF-blocking RDP58 report the loss of patient response. This review discusses the non-pharmacologic selective granulocyte-monocyte-apheresis (GMA) and leukocytapheresis (LCAP) that have been proposed as treatment modalities that reduce mortality. GMA, an extracorporeal vein-to-vein technique, presents a strong safety profile case for its use as a viable therapeutic option compared to GMA's conventional medication safety profile. GMA reported minimal to no side effects in the pediatric population and pregnant women. Numerous studies report the efficacious nature of GMA in UC patients, whereas data on CD patients is insufficient. Its benefits outweigh the risks and are emerging as a favored non-pharmacological treatment option. On the contrary, LCAP uses a general extracorporeal treatment that entraps leukocytes and suppresses cytokine release. It has been deemed more efficacious than conventional drug treatments, the former causing better disease remission, and maintenance. Patients with UC/CD secondary to complications have responded well to the treatment. Side effects of the procedure have remained mild to moderate, and there is little evidence of any severe adverse event occurring in most age groups. LCAP decreases the dependence on steroids and immunosuppressive therapies for IBD. The review will discuss the role of GMA and LCAP.

2010-06-01·Medical Oncology4区 · 医学

TNF-α and its inhibitors in cancer

4区 · 医学

Review

作者: Nidhal Ben Amor ; Souhir Mestiri ; Inès Zidi ; Aghleb Bartegi

Tumor necrosis factor (TNF)-alpha is implicated in the same time in apoptosis and in cell proliferation. TNF-alpha not only acts as pro-inflammatory cytokine conducing to wide spectrum of human diseases including inflammatory diseases, but can also induce tumor development. The molecular mechanisms of TNF-alpha functions have been intensively investigated. In this review we covered TNF-alpha, the molecule, its signaling pathway, and its therapeutic functions. We provide a particular insight in its paradoxical role in tumor promotion and in its use as anti-tumor agent. This review considers also the recent findings regarding TNF-alpha inhibitors, their pharmacokinetics, and their pharmacodynamics. Six TNF-alpha inhibitors have been considered here: Infliximab, Adalimumab, Golimumab, CDP870, CDP571, Etanercept, and Thalidomide. We discussed the clinical relevance of their functions in treatment of several diseases such as advanced inflammatory rheumatic and bowel disease, with a focus in cancer treatment. Targeting TNF-alpha by these drugs has many side effects like malignancies development, and the long-term sequels are not very well explored. Their efficacy and their safety were discussed, underscoring the necessity of close patients monitoring and of their caution use.

2008-01-01·Pediatric Drugs4区 · 医学

Managing Crohn Disease in Children and Adolescents

4区 · 医学

Review

作者: Shehzad Ahmed Saeed ; Wallace Crandall

Crohn disease (CD) is a chronic inflammatory disorder of the gastrointestinal tract characterized by a relapsing course and variable presentation that often includes abdominal pain, diarrhea, and fatigue. CD frequently presents during childhood, resulting in pediatric-specific complications, such as growth failure and delayed puberty. Conventional drug therapy for moderate to severe pediatric CD includes induction of remission with corticosteroids, and maintenance of remission with immunomodulators. Patients who have an inadequate response to standard therapy are being increasingly treated with anti-tumor necrosis factor-alpha (TNFalpha) agents. Infliximab has been the most widely studied anti-TNFalpha agent in pediatric CD, and has been shown to be efficacious in this condition. Adalimumab has been proven to be efficacious in adults with CD, but there has been only a single case report in children. CDP571 has been tested in 20 children with CD, showing some efficacy. Finally, thalidomide therapy has been associated with improvement in two small case series. Toxicities of these agents include infusion reactions, infections, malignancies, neurologic disorders, and hematologic derangements.

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研发状态

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适应症	最高研发状态	国家/地区	公司	日期
克罗恩病	临床3期	美国	PDL BioPharma, Inc.	-
克罗恩病	临床3期	-	Biogen, Inc.	-
克罗恩病	临床3期	-	Celltech Oy	-
脓毒性休克	临床3期	德国	-	-
脓毒性休克	临床3期	比利时	-	-
脓毒性休克	临床3期	法国	-	-
脓毒性休克	临床3期	美国	PDL BioPharma, Inc.	-
脓毒性休克	临床3期	-	Biogen, Inc.	-
脓毒性休克	临床3期	-	Celltech Oy	-
脓毒性休克	临床3期	英国	Celltech Group Plc	-