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Step Pharma Completes €14.5 Million Series A Financing with Additional New InvestorStep Pharma today announced the closing of a Series A financing totalling €14.5 million. Pontifax joined existing investors led by Kurma Partners, and including Bpifrance (Fonds Biothérapies Innovantes et Maladies Rares), Inserm Transfert Initiative, Idinvest, Sygnature Discovery and the Imagine Institute in an €8.6 million second closing of the round. The additional proceeds will be used to advance the company's novel class of oral immunomodulators targeting cytidine triphosphate synthase 1 (CTPS1) to clinical studies. CTPS1 is a novel target discovered at the Imagine Institute (Paris, France) in rare genetic disease patients exhibiting deficiency in this enzyme involved in CTP nucleotide production. "There is a long, established history of using nucleotide synthesis inhibitors to treat autoimmune diseases, such as rheumatoid arthritis, multiple sclerosis or psoriasis, but their clinical use is limited due to lack of tissue selectivity. Targeting CTPS1 should allow selective modulation of specific immune cell populations, such as T and B cells, without affecting other tissues, which should translate to better efficacy and an improved therapeutic index," said Geoffroy de Ribains, CEO and co-founder of Step Pharma. "Our funding to date has enabled us to build a proprietary assay platform, discover first series of CTP1 compounds and show initial proof of concept in vivo. With the continued support of our investors and new investor Pontifax, we will be able to advance our CTPS1 program into clinical testing." "Step Pharma is exploring a completely new paradigm for the treatment of autoimmune diseases. The rare combination of a clinically validated target, a novel mechanism of action, and a significant unmet medical need led us to create the company with the Imagine Institute and Sygnature Discovery, and we are excited to see the program progress. The ability of Step Pharma to attract Pontifax confirms the potential of this approach," said Vanessa Malier of Kurma Partners. Targeting CTPS1 Cytidine nucleotide triphosphate (CTP) is a precursor required for several key processes involved in cell division. It originates from two sources: a salvage pathway and a de novo synthesis pathway that depends on several enzymes, including CTPS1. Importantly, patients deficient in CTPS1 only exhibit certain immunodeficiencies without other clinical problems, strongly suggesting a predominant and key role of CTPS1 in selected immune cell populations. CTPS1 therefore represents a therapeutic target for a new class of highly selective immunomodulatory drugs. About Step Pharma Step Pharma is focused on the development of a novel class of oral nucleotide synthesis inhibitors targeting CTPS1 for the improved treatment of a range of autoimmune diseases. The company has identified several series of CTPS1 inhibitors, with the most advanced series currently undergoing lead optimization. Step Pharma was founded in June 2014 by Kurma Partners, the Imagine Institute, and Sygnature Discovery based on the scientific discoveries of Dr Sylvain Latour's laboratory and Prof. Alain Fischer (UMR1163 Inserm unit). Step Pharma is based in Paris, France. More information on the company can be found at www.step-ph.com.
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