Organization and Operations	6 Months Ended
Jun. 30, 2018
Organization and Operations
Organization and Operations	1.Organization and Operations The Company Catabasis Pharmaceuticals, Inc. (the “Company”) is a clinical-stage biopharmaceutical company. The Company’s lead program is edasalonexent, formerly known as CAT-1004, an oral small molecule designed to inhibit NF-B, or nuclear factor kappa-light-chain-enhancer of activated B cells, in development for the treatment of Duchenne muscular dystrophy (“DMD”). The Company believes edasalonexent has the potential to be a foundational therapy for all patients affected by DMD, regardless of the underlying dystrophin mutation. DMD is an ultimately fatal genetic disorder involving progressive muscle degeneration. The United States Food and Drug Administration has granted orphan drug, fast track and rare pediatric disease designations to edasalonexent for the treatment of DMD. The European Commission has granted orphan medicinal product designation to edasalonexent for the treatment of DMD. The Company was incorporated in the State of Delaware on June 26, 2008. Liquidity In October 2017, the Company entered into a sales agreement with Cowen and Company LLC (“Cowen”) pursuant to which the Company could issue and sell shares of common stock for an aggregate maximum offering amount of $10.0 million under an at-the-market offering program (the “ATM Program”). Shares sold pursuant to the sales agreement were sold pursuant to a shelf registration statement, which became effective on July 19, 2016. The Company paid Cowen 3% of the gross proceeds from any common stock sold through these sales agreements. During the six months ended June 30, 2018, the Company sold an aggregate of 5,390,255 shares of common stock pursuant to the ATM Program, at an average price of $1.59 per share, for gross proceeds of $8.6 million, resulting in net proceeds of $8.3 million after deducting sales commissions and offering expenses. The ATM Program was fully utilized as of February 2018. On June 20, 2018, the Company entered into an underwriting agreement with Oppenheimer & Co. Inc. relating to an underwritten public offering (the “June 2018 Financing”) of 42,000,000 shares of the Company’s common stock, par value $0.001 per share, and accompanying warrants to purchase up to 42,000,000 shares of common stock, at a combined price to the public of $1.00 per share, for gross proceeds of approximately $42.0 million, and net proceeds of $38.9 million. As of June 30, 2018, the Company had an accumulated deficit of $185.6 million. The Company has been primarily involved with research and development activities and has incurred operating losses and negative cash flows from operations since its 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 regulatory approval 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. As of June 30, 2018, the Company had available cash and cash equivalents of $49.9 million. Based on the Company’s current operating plan, the Company believes it has sufficient cash to fund operations into the second quarter of 2020, and therefore the substantial doubt about the Company’s ability to continue as a going concern disclosed in the Company’s annual report on Form 10-K filed with the Securities and Exchange Commission on March 15, 2018 (the “2017 Annual Report on Form 10-K”) has been alleviated.

1.Organization and Operations

The Company

Catabasis Pharmaceuticals, Inc. (the “Company”) is a clinical-stage biopharmaceutical company. The Company’s lead program is edasalonexent, formerly known as CAT-1004, an oral small molecule designed to inhibit NF-B, or nuclear factor kappa-light-chain-enhancer of activated B cells, in development for the treatment of Duchenne muscular dystrophy (“DMD”). The Company believes edasalonexent has the potential to be a foundational therapy for all patients affected by DMD, regardless of the underlying dystrophin mutation. DMD is an ultimately fatal genetic disorder involving progressive muscle degeneration. The United States Food and Drug Administration has granted orphan drug, fast track and rare pediatric disease designations to edasalonexent for the treatment of DMD. The European Commission has granted orphan medicinal product designation to edasalonexent for the treatment of DMD. The Company was incorporated in the State of Delaware on June 26, 2008.

Liquidity

In October 2017, the Company entered into a sales agreement with Cowen and Company LLC (“Cowen”) pursuant to which the Company could issue and sell shares of common stock for an aggregate maximum offering amount of $10.0 million under an at-the-market offering program (the “ATM Program”). Shares sold pursuant to the sales agreement were sold pursuant to a shelf registration statement, which became effective on July 19, 2016. The Company paid Cowen 3% of the gross proceeds from any common stock sold through these sales agreements.

During the six months ended June 30, 2018, the Company sold an aggregate of 5,390,255 shares of common stock pursuant to the ATM Program, at an average price of $1.59 per share, for gross proceeds of $8.6 million, resulting in net proceeds of $8.3 million after deducting sales commissions and offering expenses. The ATM Program was fully utilized as of February 2018.

On June 20, 2018, the Company entered into an underwriting agreement with Oppenheimer & Co. Inc. relating to an underwritten public offering (the “June 2018 Financing”) of 42,000,000 shares of the Company’s common stock, par value $0.001 per share, and accompanying warrants to purchase up to 42,000,000 shares of common stock, at a combined price to the public of $1.00 per share, for gross proceeds of approximately $42.0 million, and net proceeds of $38.9 million.

As of June 30, 2018, the Company had an accumulated deficit of $185.6 million. The Company has been primarily involved with research and development activities and has incurred operating losses and negative cash flows from operations since its 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 regulatory approval 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.

As of June 30, 2018, the Company had available cash and cash equivalents of $49.9 million. Based on the Company’s current operating plan, the Company believes it has sufficient cash to fund operations into the second quarter of 2020, and therefore the substantial doubt about the Company’s ability to continue as a going concern disclosed in the Company’s annual report on Form 10-K filed with the Securities and Exchange Commission on March 15, 2018 (the “2017 Annual Report on Form 10-K”) has been alleviated.