Organization and Nature of Business	6 Months Ended
Jun. 30, 2020
Organization and Nature of Business
Organization and Nature of Business	1. Organization and Nature of Business Overview Aclaris Therapeutics, Inc. was incorporated under the laws of the State of Delaware in 2012. In July 2015, Aclaris Therapeutics International Limited (“ATIL”) was established under the laws of the United Kingdom as a wholly-owned subsidiary of Aclaris Therapeutics, Inc. In August 2017, Confluence Life Sciences, Inc. (now known as Aclaris Life Sciences, Inc.) (“Confluence”) was acquired by Aclaris Therapeutics, Inc. and became a wholly-owned subsidiary thereof. Aclaris Therapeutics, Inc., ATIL and Confluence are referred to collectively as the “Company.” The Company is a clinical-stage biopharmaceutical company focused on developing novel drug candidates for immuno-inflammatory diseases. The Company currently has a pipeline of drug candidates focused on immuno-inflammatory diseases, as well as one product approved by the U.S. Food and Drug Administration (“FDA”) that it is not currently distributing, marketing or selling, and other investigational drug candidates. In September 2019, the Company announced the completion of a strategic review of its business, as a result of which it refocused its resources on its immuno-inflammatory development programs. The Company is pursuing strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA (hydrogen peroxide) topical solution, 40% (w/w) (“ESKATA”), the Company’s non-marketed FDA-approved product. Liquidity The Company’s condensed consolidated financial statements have been prepared on the basis of continuity of operations, realization of assets and the satisfaction of liabilities in the ordinary course of business. As of June 30, 2020, the Company had cash, cash equivalents and restricted cash and marketable securities of $68,115 and an accumulated deficit of $480,710. Since inception, the Company has incurred net losses and negative cash flows from its operations. Prior to the acquisition of Confluence in August 2017, the Company had never generated revenue. There can be no assurance that profitable operations will ever be achieved, and, if achieved, will be sustained on a continuing basis. In addition, development activities, including clinical and preclinical testing of the Company’s drug candidates, will require significant additional financing. The future viability of the Company is dependent on its ability to successfully develop its drug candidates and to generate revenue from identifying and consummating transactions with third-party partners to further develop, obtain marketing approval for and/or commercialize its development assets or to raise additional capital to finance its operations. The Company will require additional capital to complete the clinical development of ATI-450 and ATI-1777, to develop its preclinical compounds, and to support its discovery efforts. Additional funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may not be sufficient to enable the Company to continue to implement its long-term business strategy. The Company’s ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from the ongoing COVID-19 pandemic. If the Company is unable to raise sufficient additional capital or generate revenue from transactions with third-party partners for the development and/or commercialization of its drug candidates, it may need to substantially curtail planned operations. The Company’s failure to raise capital as and when needed could have a negative impact on its financial condition and ability to pursue its business strategies. In accordance with Accounting Standards Update (“ASU”) 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), the Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that its consolidated financial statements are issued. As of the report date, the Company believes the actions described below are probable of being implemented effectively and of alleviating the conditions or events that exist which raise substantial doubt about its ability to continue as a going concern within one year after the date of the issuance of these condensed consolidated financial statements. The Company believes its existing cash, cash equivalents and marketable securities are sufficient to fund its operating and capital expenditure requirements for a period greater than 12 months from the date of issuance of these condensed consolidated financial statements. The Company has taken a number of actions to support its operations and meet its liquidity needs. In September 2019, the Company announced the completion of a strategic review and its decision to refocus its resources on its immuno-inflammatory development programs and to pursue strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA. As a result of this decision, the Company restructured its operations and terminated employees, which lowered operating costs. In October 2019, the Company sold the worldwide rights to RHOFADE (oxymetazoline hydrochloride) cream, 1% (“RHOFADE”) to further its focus on its development programs and improve cash flow. In March 2020, the Company borrowed $11,000 under a term loan facility with Silicon Valley Bank. The Company’s plans to further alleviate the substantial doubt about its going concern, which are probable of effectively being implemented and mitigating these conditions, primarily include its ability to control the timing and spending on its research and development programs. The Company may also consider other plans to fund its operations including: (1) raising additional capital through debt or equity financings; (2) identifying third-party partners to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA, which may generate revenue and/or milestone payments; (3) reducing spending on one or more research and development programs by delaying or discontinuing development; and/or (4) further restructuring its operations to change its overhead structure. Finally, additional funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may not be sufficient to enable the Company to continue to implement its long-term business strategy.

Organization and Nature of Business

6 Months Ended

Jun. 30, 2020

1. Organization and Nature of Business

Overview

Aclaris Therapeutics, Inc. was incorporated under the laws of the State of Delaware in 2012. In July 2015, Aclaris Therapeutics International Limited (“ATIL”) was established under the laws of the United Kingdom as a wholly-owned subsidiary of Aclaris Therapeutics, Inc. In August 2017, Confluence Life Sciences, Inc. (now known as Aclaris Life Sciences, Inc.) (“Confluence”) was acquired by Aclaris Therapeutics, Inc. and became a wholly-owned subsidiary thereof. Aclaris Therapeutics, Inc., ATIL and Confluence are referred to collectively as the “Company.” The Company is a clinical-stage biopharmaceutical company focused on developing novel drug candidates for immuno-inflammatory diseases. The Company currently has a pipeline of drug candidates focused on immuno-inflammatory diseases, as well as one product approved by the U.S. Food and Drug Administration (“FDA”) that it is not currently distributing, marketing or selling, and other investigational drug candidates. In September 2019, the Company announced the completion of a strategic review of its business, as a result of which it refocused its resources on its immuno-inflammatory development programs. The Company is pursuing strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA (hydrogen peroxide) topical solution, 40% (w/w) (“ESKATA”), the Company’s non-marketed FDA-approved product.

Liquidity

The Company’s condensed consolidated financial statements have been prepared on the basis of continuity of operations, realization of assets and the satisfaction of liabilities in the ordinary course of business. As of June 30, 2020, the Company had cash, cash equivalents and restricted cash and marketable securities of $68,115 and an accumulated deficit of $480,710. Since inception, the Company has incurred net losses and negative cash flows from its operations. Prior to the acquisition of Confluence in August 2017, the Company had never generated revenue. There can be no assurance that profitable operations will ever be achieved, and, if achieved, will be sustained on a continuing basis. In addition, development activities, including clinical and preclinical testing of the Company’s drug candidates, will require significant additional financing. The future viability of the Company is dependent on its ability to successfully develop its drug candidates and to generate revenue from identifying and consummating transactions with third-party partners to further develop, obtain marketing approval for and/or commercialize its development assets or to raise additional capital to finance its operations. The Company will require additional capital to complete the clinical development of ATI-450 and ATI-1777, to develop its preclinical compounds, and to support its discovery efforts. Additional funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may not be sufficient to enable the Company to continue to implement its long-term business strategy. The Company’s ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from the ongoing COVID-19 pandemic. If the Company is unable to raise sufficient additional capital or generate revenue from transactions with third-party partners for the development and/or commercialization of its drug candidates, it may need to substantially curtail planned operations. The Company’s failure to raise capital as and when needed could have a negative impact on its financial condition and ability to pursue its business strategies.

In accordance with Accounting Standards Update (“ASU”) 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), the Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that its consolidated financial statements are issued. As of the report date, the Company believes the actions described below are probable of being implemented effectively and of alleviating the conditions or events that exist which raise substantial doubt about its ability to continue as a going concern within one year after the date of the issuance of these condensed consolidated financial statements. The Company believes its existing

cash, cash equivalents and marketable securities are sufficient to fund its operating and capital expenditure requirements for a period greater than 12 months from the date of issuance of these condensed consolidated financial statements.

The Company has taken a number of actions to support its operations and meet its liquidity needs. In September 2019, the Company announced the completion of a strategic review and its decision to refocus its resources on its immuno-inflammatory development programs and to pursue strategic alternatives, including identifying and consummating transactions with third-party partners, to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA. As a result of this decision, the Company restructured its operations and terminated employees, which lowered operating costs. In October 2019, the Company sold the worldwide rights to RHOFADE (oxymetazoline hydrochloride) cream, 1% (“RHOFADE”) to further its focus on its development programs and improve cash flow. In March 2020, the Company borrowed $11,000 under a term loan facility with Silicon Valley Bank.

The Company’s plans to further alleviate the substantial doubt about its going concern, which are probable of effectively being implemented and mitigating these conditions, primarily include its ability to control the timing and spending on its research and development programs. The Company may also consider other plans to fund its operations including: (1) raising additional capital through debt or equity financings; (2) identifying third-party partners to further develop, obtain marketing approval for and/or commercialize its drug candidates and ESKATA, which may generate revenue and/or milestone payments; (3) reducing spending on one or more research and development programs by delaying or discontinuing development; and/or (4) further restructuring its operations to change its overhead structure. Finally, additional funds may not be available on a timely basis, on commercially acceptable terms, or at all, and such funds, if raised, may not be sufficient to enable the Company to continue to implement its long-term business strategy.