Expert Opinion on Investigational Drugs | Year: 2010
Drugs inhibiting voltage-gated sodium channels have long been used as analgesics, beginning with the use of local anaesthetics for sensory blockade and then with the discovery that Nav-blocking anticonvulsants also have benefit for pain therapy. These drugs were discovered without knowledge of their molecular target, using traditional pharmacological methods, and their clinical utility is limited by relatively narrow therapeutic windows. Until recently, attempts to develop improved inhibitors using modern molecular-targeted screening approaches have met with limited success. However, in the last few years there has been renewed activity following the discovery of human Nav1.7 mutations that cause striking insensitivity to pain. Together with recent advances in the technologies required to prosecute ion channels as drug targets, this has led to significant progress being made. This article reviews these developments and summarises current findings with these emerging new Nav inhibitors, highlighting some of the unanswered questions and the challenges that remain before they can be developed for clinical use. © 2010 Informa UK Ltd.
Millipore | Date: 2015-06-11
In various embodiments, the present invention provides a process for separating target proteins from non-target proteins in a sample comprising increasing the concentration of the target proteins and non-target proteins in the sample and subsequently delivering the concentrated sample to a chromatography device. In other embodiments, the invention relates to a process for increasing the capacity of a chromatography device for a target protein by delivering a concentrated sample comprising the target protein to a chromatography device.
Agency: Cordis | Branch: H2020 | Program: IA | Phase: BIOTEC-4-2014 | Award Amount: 10.57M | Year: 2015
The scope of the project is the optimization of downstream process (DSP) for the production of Biopharmaceuticals. Biopharmaceuticals have been successfully used as efficient therapeutic drugs for many pathophysiological conditions since the first recombinant product, insulin, was approved in 1982. Despite its efficacy, accessibility is still limited due to extremely high costs. In the production chain, capturing and purifying still represents a major bottleneck. Consequently, improvements in this area produce substantial cost reductions and expand patients accessibility to highly efficient drugs. Another aim of this action is to cope with the changing manufacturing demands, by lowering its environmental footprint and moving to more sustainable technologies. This proposals main objective is to implement a fully integrated manufacturing platform based on continuous chromatography in combination with disposable techniques for all unit operations of the DSP sequence for biosimilar monoclonal antibodies and derivatives thereof. The action encompasses the entire DSP sequence. We will implement alternative technologies for primary separation, such as flocculation or tangential flow filtration. The expected outcome is a reduction in the size and number of downstream unit operations and the elimination of centrifugation. Alternative approaches to the batch process for the capture step, such as continuous chromatography, will be evaluated in order to improve the efficiency and lower the need for expensive resin volume. Additionally precipitation utilization will be evaluated as an approach to replace protein A chromatography as capture step. A disposable continuous chromatography system will be developed together with novel analytical tools and sensors. Since single-use disposable systems can substitute the extensive use of resources (water) and significantly reduce the overall utility needs, the whole DSP sequence will be carried out on disposable technology (PAT).
Millipore | Date: 2015-03-23
The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer.
Millipore | Date: 2015-04-09
Adsorptive media for chromatography, particularly ion-exchange chromatography, derived from a shaped fiber. In certain embodiments, the functionalized shaped fiber presents a fibrillated or ridged structure which greatly increases the surface area of the fibers when compared to ordinary fibers. Also disclosed herein is a method to add surface pendant functional groups that provides cation-exchange or anion-exchange functionality to the high surface area fibers. This pendant functionality is useful for the ion-exchange chromatographic purification of biomolecules, such as monoclonal antibodies (mAbs).