Organization and Operations	3 Months Ended
Mar. 31, 2016
Organization and Operations
Organization and Operations	1.Organization and Operations The Company Catabasis Pharmaceuticals, Inc. (the “Company”) is a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of novel therapeutics based on the Company’s proprietary Safely Metabolized And Rationally Targeted, or SMART, linker drug discovery platform. The Company’s SMART linker technology platform enables the Company to engineer product candidates that can simultaneously modulate multiple targets in a disease. The Company’s proprietary product candidates impact pathways that are central to diseases where efficacy may be optimized by a multiple target approach. The Company’s primary focus is on treatments for rare diseases. The Company is also developing product candidates for the treatment of serious lipid disorders. The Company has applied its SMART linker drug discovery platform to build an internal pipeline of product candidates for rare diseases and plans to pursue partnerships to develop additional product candidates. The Company was incorporated in the State of Delaware on June 26, 2008. Liquidity In June 2015, the Company completed its initial public offering (the “IPO”). All of the shares issued and sold in the IPO were registered pursuant to a registration statement on Form S-1, as amended. An aggregate of 5,750,000 shares of the Company’s common stock (“Common Stock”) registered pursuant to the registration statement were sold at a price to the public of $12.00 per share (including 750,000 shares of Common Stock sold pursuant to the exercise of an overallotment option granted to the Company’s underwriters in connection with the IPO). Net proceeds of the IPO were $61.7 million, after deducting underwriting discounts, commissions and offering-related expenses payable by the Company of approximately $7.3 million. In connection with the IPO, all shares of the Company’s convertible preferred stock (“Preferred Stock”) were automatically converted into an aggregate of 9,029,549 shares of Common Stock and outstanding warrants to purchase 315,688 shares of Preferred Stock were automatically converted into warrants to purchase 24,566 shares of Common Stock. As of March 31, 2016, the Company had an accumulated deficit of $117.4 million. The Company has been primarily involved with research and development activities and has incurred operating losses and negative cash flows from operations since inception. The Company is subject to a number of risks similar to other life science companies, including, but not limited to, successful discovery and development of its drug candidates, raising additional capital, development by its competitors of new technological innovations, protection of proprietary technology and market acceptance of the Company’s products. The Company anticipates that it will continue to incur significant operating losses for the next several years as it continues to develop its product candidates. At March 31, 2016, the Company had sufficient cash, cash equivalents and marketable securities to fund operations through at least June 30, 2017.

1.Organization and Operations

The Company

Catabasis Pharmaceuticals, Inc. (the “Company”) is a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of novel therapeutics based on the Company’s proprietary Safely Metabolized And Rationally Targeted, or SMART, linker drug discovery platform. The Company’s SMART linker technology platform enables the Company to engineer product candidates that can simultaneously modulate multiple targets in a disease. The Company’s proprietary product candidates impact pathways that are central to diseases where efficacy may be optimized by a multiple target approach. The Company’s primary focus is on treatments for rare diseases. The Company is also developing product candidates for the treatment of serious lipid disorders. The Company has applied its SMART linker drug discovery platform to build an internal pipeline of product candidates for rare diseases and plans to pursue partnerships to develop additional product candidates. The Company was incorporated in the State of Delaware on June 26, 2008.

Liquidity

In June 2015, the Company completed its initial public offering (the “IPO”). All of the shares issued and sold in the IPO were registered pursuant to a registration statement on Form S-1, as amended. An aggregate of 5,750,000 shares of the Company’s common stock (“Common Stock”) registered pursuant to the registration statement were sold at a price to the public of $12.00 per share (including 750,000 shares of Common Stock sold pursuant to the exercise of an overallotment option granted to the Company’s underwriters in connection with the IPO). Net proceeds of the IPO were $61.7 million, after deducting underwriting discounts, commissions and offering-related expenses payable by the Company of approximately $7.3 million. In connection with the IPO, all shares of the Company’s convertible preferred stock (“Preferred Stock”) were automatically converted into an aggregate of 9,029,549 shares of Common Stock and outstanding warrants to purchase 315,688 shares of Preferred Stock were automatically converted into warrants to purchase 24,566 shares of Common Stock.

As of March 31, 2016, the Company had an accumulated deficit of $117.4 million. The Company has been primarily involved with research and development activities and has incurred operating losses and negative cash flows from operations since inception. The Company is subject to a number of risks similar to other life science companies, including, but not limited to, successful discovery and development of its drug candidates, raising additional capital, development by its competitors of new technological innovations, protection of proprietary technology and market acceptance of the Company’s products. The Company anticipates that it will continue to incur significant operating losses for the next several years as it continues to develop its product candidates. At March 31, 2016, the Company had sufficient cash, cash equivalents and marketable securities to fund operations through at least June 30, 2017.