Perosphere Technologies Inc.

Perosphere Inc.

Sasha Bakhru

Solomon S Steiner

Bryan Laulicht

Stefan Zappe

Edith Mathiowitz

Xuan Jiang

Lirong Chen

Solomon Steiner

Coagulometer

A microfluidic, chip-based assay device has been developed for measuring physical properties of an analyte (particularly, whole blood or whole blood derivatives). The technologies can be applied to measure clotting times of whole blood or blood derivatives, determine the effects of anticoagulant drugs on the kinetics of clotting/coagulation, as well as evaluate the effect of anticoagulant reversal agents. These technologies can additionally be used to optimize the dosage of anticoagulation drugs and/or their reversal agents. The assay is independent of the presence of anticoagulant; clotting is activated by exposure of the blood sample in the device to a glass (or other negatively charged material such as oxidized silicon) surface, which activates the intrinsic pathway and can be further hastened by the application of shear flow across the activating materials surface. The absence of chemical activating agents and highly controlled and reproducible micro-environment yields a point of care universal clotting assay.

Microfluidic chip-based, universal coagulation assay

Methods and compositions for delivering antigens to the lymphatic system in doses that desensitize patients to future exposure to antigens have been developed. Rapid desensitization is achieved by introducing small quantities of antigen into the lymphatic system. In preferred embodiments, the compositions are administered to yield therapeutically effective levels of antigen within the lymph, where macrophages reside in the greatest concentration, by intradermal administration, using for example, microneedles or micro articles, oral administration, using for example, enteric coated capsules or tablets, or autologous transfusion. In some embodiments, the methods and compositions for delivering antigens orally achieve uptake by the Peyer's patches of the small intestines.

Methods for effectively and rapidly desensitizing allergic patients

Stabilized formulations containing a peptide, such as a glucagon, are described herein. The formulations are in the form of a solution or suspension, which exhibit little or no chemical degradation and/or aggregation of the peptide over an extended period of time. In some embodiments, the formulations are in the form of a solution containing the peptide, a solvent such as glycerin, and one or more thermal stabilizers. In other embodiments, the formulation is in the form of a suspension containing nano- and/or microparticles containing the peptide suspended in a non-aqueous, non-solvent. The nano- and/or microparticles can be prepared by micronizing the peptide with one or more humectants, such as salts, sugars, water-soluble polymers, and combinations thereof which increase the rate of dissolution of the peptide upon administration.

Stable glucagon formulations

Novel anticoagulant reversal compounds are disclosed, as well as methods of making the compounds, pharmaceutical compositions including the compounds, methods of using the compounds to reverse the anticoagulant effects of coagulation inhibitors, and diagnostic assays comprising the compounds.

Growing community of inventors

Providence, RI, United States of America

Sasha Bakhru