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Cell-free RNA Drives Inflammation in Multiple Diseases

Science

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The Problem

RNA and DNA are continuously released into plasma through natural biological processes such as cell death, and the release of Neutrophil Extracellular Traps (NETs). These molecules are highly inflammatory, prothrombotic and must be constantly removed from circulation by endogenous nucleases to maintain homeostasis. Many individuals, through injury or disease are unable to maintain homeostasis, leading to an accumulation of extracellular nucleic acids, which triggers a robust immune response, the production of cytokines and ultimately inflammation.

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The Solution

Resolve has developed a first-in-class fully-human biologic drug platform that combines potent RNases and/or DNases with an antibody Fc domain to digest extracellular nucleic acids, which reduces activation of the immune system and resolves inflammation. The platform is non-immunogenic, non-immunosuppressive and stable in plasma for multiple weeks. RSLV-132 is Resolve’s most advanced drug candidate, which has been clinically validated in multiple phase 2 trials and has been demonstrated to improve the symptoms of chronic autoimmune diseases such as SLE and Sjogren’s syndrome. 

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RSLV-132

Our mid-stage clinical candidate is a fully-human Fc fusion protein comprised of RNase fused to an engineered Fc domain.  RSLV-132 has demonstrated an excellent safety profile in 5 clinical trials, is completely non-immunosuppressive and effective in removing pathogenic extracellular RNA from plasma.  Our lead indication is Sjogren’s syndrome where a large confirmatory phase 2 study is currently ongoing, following up on a positive smaller phase 2 Sjogren’s study. In addition to Sjogren’s syndrome we are exploring the efficacy of RSLV-132 in multiple additional chronic and acute indications.

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RSLV-145

Our pre-clinical candidate RSLV-145 is a bispecific nuclease Fc fusion protein that contains both RNase and DNase catalytic activity. RSLV-145 is a potent antagonist of the inflammatory properties of both extracellular RNA and DNA with potential therapeutic utility in lupus, lupus nephritis, vasculitis and autoimmune diseases that involve NETosis (the formation of dense lattices containing RNA and DNA that act as a scaffold for autoantigens that bind to autoantibodies). Through digestion of extracellular RNA, DNA and NETs, RSLV-145 prevents activation of the immune system. RSLV-145 is currently being assessed across multiple indications.

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Mechanism of Action

Interested in learning if our drug candidates would work for your indication?

 

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discover our mechanism of action.

Publications

May 11, 2024

Assessment of the Impact of RNase in Patients With Severe Fatigue Related to Post-Acute Sequelae of SARS-CoV-2 Infection (PASC): A Randomized Phase 2 Trial of RSLV-132

February 8, 2024

Evaluation of RNase therapy in systemic lupus erythematosus: a randomised phase 2a clinical trial of RSLV-132

December 8, 2020

Improvement of Severe Fatigue Nuclease Therapy in Patients With Primary Sjögren’s Syndrome: A Randomized Clinical Trial

November 16, 2016

Safety, pharmacokinetics, and pharmacodynamics of RSLV-132, an RNase-Fc fusion protein in systemic lupus erythematosus: a randomized, double-blind, placebo-controlled study

August 17, 2016

Blood-Borne RNA Correlates with Disease Activity and IFN-Stimulated Gene Expression in Systemic Lupus Erythematosus

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