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Atossa THERAPEUTICS Atossa Therapeutics Announces Second Quarter 2021 Financial Results - Provides Corporate Update and Information about Upcoming Stockholder Meeting August 13 , 2021 1:30 PM EDT SEATTLE , Aug. 13 , 2021 ( GLOBE NEWSWIRE ) -- Atossa Therapeutics , Inc. ( Nasdaq : ATOS ) , a clinical - stage biopharmaceutical company seeking to discover and develop innovative medicines in oncology and infectious disease with a current focus on breast cancer and COVID - 19 , today announces financial results for the fiscal quarter ended June 30 , 2021 , and provides an update on recent company developments . Key developments from Q2 2021 and to date include : • Atossa received final data from its open - label Phase 2 clinical study of oral Endoxifen administered in the “ window of opportunity ” between diagnosis of breast cancer and surgery , which showed that the primary endpoint of the study was achieved : Ki - 67 , a common measure of tumor cell activity , was reduced from an average of 25.6 % at screening to 6 % on the day of surgery , a 65.1 % reduction . Ki - 67 was reduced below 25 % for all patients , which is potentially clinically meaningful because studies by others have shown that a reduction below 25 % improves long term survival . • Received authorization from Swedish regulators to initiate a Phase 2 clinical study of Endoxifen to reduce mammographic breast density ( MBD ) . • Received authorization from Australian regulators to initiate a clinical study of AT - H201 which is being developed for the treatment of patients with COVID - 19 and “ long haul ” respiratory illness . • Announced final results from its Phase 1 double - blinded , randomized , placebo - controlled clinical study using Atossa's proprietary drug candidate AT - 301 administered by nasal spray . AT - 301 was considered safe and well tolerated in healthy male and female participants in this study at two different dose levels over 14 days . AT - 301 is being developed for at home use for patients recently diagnosed with COVID - 19 . • Completed treatment of oral Endoxifen in an ovarian cancer patient under the FDA's Expanded Access Pathway . The patient has recurring , metastatic , late - stage ovarian cancer and had not improved on other therapies . Although organoid testing conducted by a third party had previously shown a strong response to Endoxifen in combination with Apelisib , she has unfortunately continued to experience disease progression and is not expected to continue treatment with Endoxifen . • Through the completion of capital raising transactions and the exercise of warrants , Atossa has grown its cash balances quarter over quarter for the past three quarters , ending the second quarter 2021 with $ 142.4 million in cash and cash equivalents . • Scheduled a special stockholder meeting for September 7 , 2021 for the purpose of approving an increase in authorized shares of common stock . If the proposal is approved by the stockholders , Atossa does not intend to issue any of the newly authorized shares of common stock for the purpose of raising capital in the nine months following approval of the proposal at a price less than $ 10 per share . The newly authorized shares of common stock are intended to