A Polymer-based Systemic Hemostatic Agent

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2020 Aug 11

PMID 32775633

Citations 28

Authors

Yongsheng Gao

Apoorva Sarode

Nikolaos Kokoroskos

Anvay Ukidve

Zongmin Zhao

Shihui Guo

Robert Flaumenhaft

Anirban Sen Gupta

Noelle Saillant

Samir Mitragotri

Affiliations

Soon will be listed here.

Abstract

Uncontrolled noncompressible hemorrhage is a major cause of mortality following traumatic injuries in civilian and military populations. An injectable hemostat for point-of-care treatment of noncompressible hemorrhage represents an urgent medical need. Here, we describe an injectable hemostatic agent via polymer peptide interfusion (HAPPI), a hyaluronic acid conjugate with a collagen-binding peptide and a von Willebrand factor-binding peptide. HAPPI exhibited selective binding to activated platelets and promoted their accumulation at the wound site in vitro. In vivo studies in mouse tail vein laceration model demonstrated a reduction of >97% in both bleeding time and blood loss. A 284% improvement in the survival time was observed in the rat inferior vena cava traumatic model. Lyophilized HAPPI could be stably stored at room temperature for several months and reconstituted during therapeutic intervention. HAPPI provides a potentially clinically translatable intravenous hemostat.

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