View clinical trials related to Skin Fibrosis.
Filter by:Transforming growth factor-beta 1 is consistently over expressed in most fibrotic diseases and displays a variety of profibrotic effects in fibroblasts(25, 26). Activation of TGF-beta receptors induces the activation of several kinase signalling cascades leading to the phosphorylation of SMAD proteins as well as to the activation of SMAD-independent kinases that collectively activate ECM synthesis and fibroblast growth and differentiation into myofibroblasts. TGF-beta 1 i one of the main mediators in the fibrotic process, associated to both scarring and a long list of pathologies related to chronic inflammation and which affect all type of organs and tissues. An increase in TGF-beta1 mRNA and protein levels has been described in these processes. Peptide 144 (P144)is a acetic salt of a 14mer peptide from human TGF-beta1 type III receptor (betaglycan). P144 TGF-beta1-inhibitor has been specifically designed to block the interaction between TGF-beta1 and TGF-beta1 type III receptor, thus blocking its biological effects. P144 has shown significant antifibrotic activity in mice receiving repeated sucutaneous injections of bleomycin, a widely accepted animal model of human scleroderma, and could contribute to the development. The aim of the study is to asses the long-term safety of topical application of P144 cream in the treatment of skin fibrosis in patients with systemic sclerosis in an extension open-label treatment period of 6 additional months.
Transforming growth factor-beta 1 (TGF-β1) is consistently over expressed in most fibrotic diseases and displays a variety of profibrotic effects in fibroblasts. Activation of TGF-β receptors induces the activation of several kinase signalling cascades leading to the phosphorylation of SMAD proteins as well as to the activation of SMAD-independent kinases that collectively activate ECM synthesis and fibroblast growth and differentiation into myofibroblasts. TGF-β1 is one of the main mediators in the fibrotic process, associated to both scarring and a long list of pathologies related to chronic inflammation and which affect all type of organs and tissues. An increase in TGF-β1 mRNA and protein levels has been described in these processes. Peptide 144 (P144) is the acetic salt of a 14mer peptide from human TGF-β1 type III receptor (betaglycan). P144 TGF-β1-inhibitor has been specifically designed to block the interaction between TGF-β1 and TGF-β1 type III receptor, thus blocking its biological effects. P144 has shown significant antifibrotic activity in mice receiving repeated subcutaneous injections of bleomycin, a widely accepted animal model of human scleroderma, and could contribute to the development. The purpose of this study is to asses the efficacy and safety of topical application of P144 in the treatment of skin fibrosis in patients with systemic sclerosis.
Endothelin-1 is a potent vasoconstrictor and binds to two receptors, ET-A and ET-B, which are variable expressed on endothelial cells, smooth muscle cells, and fibroblasts. Furthermore, endothelin-1 has been found to be released in vitro by scleroderma fibroblasts and could contribute to the development of dermal fibrosis in systemic sclerosis. Bosentan is a dual receptor antagonist, that competes with the binding of endothelin-1 to both receptors and has already been approved for the treatment of pulmonary arterial hypertension in Europe, the US, and some other countries. The purpose of this study is to evaluate the effect of bosentan treatment on skin fibrosis and functionality in patients with systemic sclerosis.