(Z)-endoxifen's Potential & Differentiation - (Z)-endoxifen is a novel, next-generation anti-estrogen with best-in-class potential across the breast cancer treatment paradigm[8] - (Z)-endoxifen is potentially a superior ER antagonist, being 100-fold more potent vs other SERMs, and demonstrates superior antitumor efficacy in preclinical and clinical studies[7] - (Z)-endoxifen inhibits clinically relevant ESR1 mutants, an acquired resistance mechanism to aromatase inhibitors[7] - (Z)-endoxifen has the potential to avoid current negative "on target off tissue" effects, potentially improving safety & tolerability and adherence[7] Clinical Trial Results & Regulatory Path - In a Phase II trial, CDK4/6 inhibitor-naïve patients had improved Progression-Free Survival (PFS) with (Z)-endoxifen compared to tamoxifen, with median PFS of 7.2 months versus 2.4 months, HR=0.42 (95% CI 0.22-0.80), Log rank test P=0.002[12] - The KARISMA trial showed a 17.3 percentage point reduction (p<0.01) in mammographic breast density with 1 mg of (Z)-endoxifen compared to a minimal change in the placebo group of 0.27 percentage points[13] - In an ongoing neoadjuvant clinical study, (Z)-endoxifen has demonstrated promising early efficacy with 1 CR and multiple PRs[14] Financials - The company's research and development expenses were $14.117 million in 2024, compared to $17.334 million in 2023[21] - The company's general and administrative expenses were $13.504 million in 2024, compared to $14.043 million in 2023[21] - The company's net loss was $(25.504) million in 2024, compared to $(30.094) million in 2023[21]

Atossa Therapeutics Conference Summary Company Overview - Atossa Therapeutics (NASDAQ: ATOS) focuses on breast cancer and oncology, addressing a multi-billion dollar opportunity in estrogen receptor positive breast cancer with its lead molecule, Z endoxifen [3][52]. Key Points and Arguments - **Market Opportunity**: Atossa is targeting a significant market in estrogen receptor positive breast cancer, with Z endoxifen showing potential from prevention to metastatic treatment [3][52]. - **Intellectual Property**: The company boasts a robust and growing intellectual property portfolio, with 92 patents held by the CEO, indicating strong future value for shareholders [4][52]. - **Financial Position**: Atossa is in a strong financial position, with over $65 million in cash as of March 31, providing approximately two years of operational runway and no debt [5][50][51]. - **Leadership Team**: The company has an experienced leadership team and advisory group, including experts from renowned institutions like the Mayo Clinic and UCSF [6][52]. Product Differentiation - **Z endoxifen's Unique Properties**: - It has superior estrogen receptor antagonism, which is crucial as 75% of breast cancers are driven by estrogen receptors [16][52]. - It triggers apoptosis, a unique mechanism that differentiates it from other endocrine therapies [10][18][52]. - Improved adherence due to a favorable side effect profile compared to existing treatments like tamoxifen and aromatase inhibitors [11][20][52]. Clinical Insights - **Unmet Needs**: Approximately 40-50% of patients stop taking current treatments due to adverse events, highlighting the need for better-tolerated therapies [7][8][52]. - **Efficacy Data**: Clinical trials have shown significant reductions in tumor size and improved patient outcomes with Z endoxifen compared to traditional therapies [33][45][52]. - **Combination Therapies**: Ongoing research indicates that Z endoxifen may work synergistically with CDK4/6 inhibitors, enhancing treatment efficacy [21][36][52]. Regulatory Strategy - **FDA Engagement**: Atossa is actively engaging with the FDA to expedite the approval process for Z endoxifen, focusing on the metastatic setting as the first target for approval [29][48][52]. - **Upcoming Trials**: The company aims to initiate its first patient in an FDA-approved registration trial by the end of 2025, with ongoing trials in prevention and neoadjuvant settings [50][52]. Conclusion - Atossa Therapeutics is positioned strongly within the breast cancer treatment landscape, with a promising drug candidate, a solid financial foundation, and a strategic approach to regulatory approval and market entry [52].

Summary of Atosa Therapeutics Webinar Company Overview - **Company**: Atosa Therapeutics - **Ticker**: ATOS (NASDAQ) - **Market Focus**: Estrogen receptor positive breast cancer, addressing a multibillion dollar market opportunity [5][39] Key Points and Arguments Product Development - **Drug**: Z endoxifen, a prodrug of tamoxifen, is being developed for various stages of breast cancer treatment including prevention, neoadjuvant, adjuvant, and metastatic settings [5][11][39] - **Market Potential**: The market for estrogen receptor positive breast cancer is projected to reach $42 billion by 2030 [25] - **Clinical Utility**: Z endoxifen shows broad clinical utility and aims to address significant unmet needs in breast cancer treatment, particularly in improving efficacy and reducing resistance to therapy [8][9][39] Clinical Insights - **Efficacy**: Approximately 50% of patients discontinue adjuvant endocrine therapy due to side effects, and nearly 60% do not respond to second-line therapies [8][9] - **Unique Mechanism**: Z endoxifen not only blocks estrogen receptor binding but also induces apoptosis, which is a critical mechanism lacking in current therapies [10][15] - **Resistance**: Z endoxifen remains effective even in cases of estrogen receptor mutations, which occur in over 50% of long-term endocrine therapy patients [16][17] Safety and Tolerability - **Adverse Events**: Z endoxifen has a low adverse event profile, enhancing patient adherence to treatment [18][32] - **Combination Therapy**: The drug is positioned as a promising backbone for combination therapies, showing compatibility with existing treatments [19][30] Regulatory Strategy - **FDA Approval Pathway**: The company is prioritizing the metastatic setting for FDA approval, which is expected to provide the fastest path to market [24][36] - **Ongoing Discussions**: Atosa is actively engaging with the FDA to align on registrational endpoints and accelerated approval pathways [47] Financial Position - **Cash Reserves**: Atosa has approximately $65 million in cash with nearly two years of runway and zero debt [37][39] - **Market Capitalization**: As of May, the company's market cap was $140 million, with a stock price of $1.06 [39] Additional Important Information - **Intellectual Property**: Atosa has a robust and growing IP portfolio providing protection in the US and globally [6][39] - **Leadership Team**: The company boasts an experienced leadership team with a history of successful drug development [6][40] - **Clinical Trials**: Ongoing trials include the EVANGELINE trial for grade one and two estrogen receptor breast cancers in the neoadjuvant setting [32][34] Conclusion Atosa Therapeutics is positioned to make significant advancements in the treatment of estrogen receptor positive breast cancer with its lead product Z endoxifen, backed by a strong financial position and a clear regulatory strategy aimed at addressing a substantial market need.

Core Insights - Atossa Therapeutics has reported promising results from the Phase 2 Endocrine Optimization Pilot sub-study, demonstrating the bioactivity of low-dose (Z)-endoxifen in treating stage II/III ER+/HER2- breast cancer [1][4] Group 1: Study Results - No participants achieved a pathologic complete response (pCR), with residual cancer burden (RCB) classes indicating moderate to extensive disease [3] - The study showed a median Ki-67 suppression from 10.5% at baseline to 5% by Week 3, with 65% of patients achieving Ki-67 ≤ 10% [6] - Median functional tumor volume decreased by 77.7% from baseline to surgery, with the longest tumor diameter reduced by 36.8% [6] Group 2: Drug Profile - (Z)-endoxifen is a potent Selective Estrogen Receptor Modulator (SERM) that can inhibit and potentially degrade estrogen receptors, showing activity in resistant tumors [5] - The drug targets PKCβ1, an oncogenic signaling protein, at clinically achievable blood levels, and offers comparable or superior bone protection compared to tamoxifen [5] Group 3: Future Directions - Atossa is enrolling participants in an additional I-SPY2 cohort testing (Z)-endoxifen at a 40 mg daily dose, with top-line data expected in 2026 [4] - The company is focused on developing (Z)-endoxifen for metastatic breast cancer, supported by a growing intellectual property portfolio [8]

Drug Development - The company is developing (Z)-endoxifen for breast cancer treatment, with a focus on metastatic breast cancer, aiming for a streamlined regulatory pathway[85] - The FDA has authorized the Investigational New Drug (IND) application for (Z)-endoxifen, with a Phase 2 study enrolling approximately 190 patients planned[98] - The ongoing Phase 2 DCIS study aims to evaluate (Z)-endoxifen's suitability for long-term active surveillance in women with ductal carcinoma in situ, with approximately 100 patients expected to be treated[96] - The treatment cohort for the neoadjuvant study of (Z)-endoxifen was initiated in April 2025, comparing it to exemestane plus OFS[100] - The company plans to conduct additional studies to assess (Z)-endoxifen's correlation with breast cancer risk reduction, as advised by the FDA[94] - (Z)-endoxifen achieved a primary endpoint with 95% of patients receiving over 75% of planned treatment, showing a 69% reduction in Ki-67 and a 30.4% reduction in functional tumor volume after three weeks[102] - The company has completed four Phase 1 and two Phase 2 clinical studies for (Z)-endoxifen, demonstrating its potential in treating breast cancer and reducing breast density[89] Financial Performance - Total operating expenses increased to $7.4 million for the three months ended March 31, 2025, up from $7.0 million in the same period in 2024, reflecting a $0.4 million increase[110] - Research and Development (R&D) expenses totaled $4.2 million for the three months ended March 31, 2025, an 11% increase from $3.7 million in 2024[111] - Compensation expenses within R&D rose by 41% to $0.9 million, while professional fees increased by 123% to $0.5 million for the same period[111] - Interest income decreased to $0.7 million for the three months ended March 31, 2025, down from $1.1 million in 2024, due to a lower balance in the money market account[112] - Net cash used in operating activities was $5.96 million for the three months ended March 31, 2025, compared to $4.70 million in 2024, reflecting a $1.3 million increase[115] - As of March 31, 2025, the company had $65.1 million in cash and cash equivalents, sufficient to fund projected operating requirements for at least the next 12 months[115] - The company has an estimated non-cancellable commitment of $9.4 million for clinical trial service providers as of March 31, 2025[122] - The company is not currently generating revenue and does not anticipate doing so until pharmaceutical programs are developed and launched[104] Intellectual Property - The company has been granted six U.S. and ten international patents for (Z)-endoxifen, with protection extending through at least November 17, 2038[83] Corporate Strategy - The company aims to opportunistically add programs in areas of high unmet medical need through acquisition or collaboration[84] - The company is focused on advancing its clinical studies and successfully commercializing new therapeutics[82] Compliance and Regulatory Issues - The company received a letter from Nasdaq regarding non-compliance with the minimum bid price requirement, with a deadline to regain compliance by August 20, 2025[121]

Core Viewpoint - Atossa Therapeutics has been granted a new patent for (Z)-endoxifen formulations, enhancing its intellectual property portfolio and supporting its mission to advance breast cancer treatment [1][2][3] Group 1: Patent and Intellectual Property - The newly granted patent (U.S. Patent No. 12,281,056) includes 58 claims related to (Z)-endoxifen formulations, focusing on purity, stability, and therapeutic methods [2] - Atossa's patent estate now encompasses over 200 claims related to (Z)-endoxifen formulations and their clinical applications, reinforcing the company's leadership in targeted therapies for hormone receptor-positive breast cancer [3] Group 2: Product Development and Efficacy - (Z)-endoxifen is a potent Selective Estrogen Receptor Modulator (SERM) that may cause estrogen receptor degradation and has shown efficacy in patients resistant to other hormonal treatments [4] - The company is developing an oral formulation of (Z)-endoxifen designed to bypass the stomach, which converts a significant portion of the drug to an inactive form [5] - Clinical studies indicate that (Z)-endoxifen is well tolerated in women with and without breast cancer, and it is being studied for both treatment and prevention of breast cancer, including a program for metastatic breast cancer [5] Group 3: Company Mission and Vision - Atossa is dedicated to transforming breast cancer treatment through innovative science and patient-focused solutions, aiming to improve the lives of millions of women while generating substantial value for shareholders [3][6]

Core Viewpoint - Atossa Therapeutics has been granted a new patent for enteric oral formulations of (Z)-endoxifen, enhancing its intellectual property portfolio and supporting its mission to develop innovative treatments for breast cancer [1][2][3]. Intellectual Property - The newly granted U.S. Patent No. 12,275,684 covers enteric oral formulations of (Z)-endoxifen and methods for treating hormone-dependent breast and reproductive tract disorders [2]. - Atossa's patent estate now includes multiple U.S. patents with over 100 claims related to (Z)-endoxifen formulations and their clinical applications, reinforcing the company's leadership in targeted therapies for hormone receptor-positive breast cancer [3]. Product Development - (Z)-endoxifen is a potent Selective Estrogen Receptor Modulator (SERM) that may cause estrogen receptor degradation and has shown efficacy in patients resistant to other hormonal treatments [4]. - Atossa is developing a proprietary oral formulation of (Z)-endoxifen designed to bypass the stomach, as acidic conditions convert a significant portion of (Z)-endoxifen to the inactive (E)-endoxifen [5]. - Clinical studies indicate that (Z)-endoxifen is well tolerated in women with and without breast cancer, and it is currently being studied for both treatment and prevention of breast cancer, including a program in metastatic breast cancer [5]. Company Overview - Atossa Therapeutics is a clinical-stage biopharmaceutical company focused on transforming breast cancer treatment through innovative science and patient-centered solutions [6]. - The company's lead product candidate, (Z)-endoxifen, is designed for use across the breast cancer spectrum, including prevention, neoadjuvant, adjuvant, and metastatic settings [6].

Atossa Genetics Inc. (ATOS) could be a solid choice for investors given its recent upgrade to a Zacks Rank #2 (Buy). This rating change essentially reflects an upward trend in earnings estimates -- one of the most powerful forces impacting stock prices.A company's changing earnings picture is at the core of the Zacks rating. The system tracks the Zacks Consensus Estimate -- the consensus measure of EPS estimates from the sell-side analysts covering the stock -- for the current and following years.The power ...

Financial Data and Key Metrics Changes - Total operating expenses for 2024 were $27.6 million, down from $31.4 million in 2023, a decrease of $3.8 million [29] - R&D expenses declined by $3.2 million from $17.3 million in 2023 to $14.1 million in 2024, primarily due to reduced spending on (Z)-endoxifen trials [30] - Net loss for 2024 was $25.5 million or $0.20 per share, compared to $30.1 million or $0.24 per share in 2023 [34] - The company closed the year with $71.1 million in cash and cash equivalents, providing a healthy runway for advancing (Z)-endoxifen and other research initiatives [34] Business Line Data and Key Metrics Changes - The focus remains on the lead program (Z)-endoxifen, which is positioned as a next-generation anti-estrogen therapy for breast cancer [12][17] - The company aims to address significant unmet needs in endocrine therapy for breast cancer, including patient adherence and drug resistance [10][11] Market Data and Key Metrics Changes - The company is prioritizing the metastatic breast cancer indication for (Z)-endoxifen, which is a clinical setting of high unmet need [19] - Clinical investigations have shown a clinical benefit rate of approximately 26% in patients with endocrine refractory ER-positive HER2-negative metastatic breast cancer [21] Company Strategy and Development Direction - The company plans to advance (Z)-endoxifen in metastatic breast cancer first, potentially leading to a more streamlined path to regulatory approval [19][26] - There is a commitment to continue dialogue with the FDA regarding the potential for (Z)-endoxifen in earlier disease settings [22] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the potential of (Z)-endoxifen to transform breast cancer treatment, especially in metastatic disease where new options are urgently needed [36] - The company remains focused on executing research and regulatory strategies to meet clinical milestones [27] Other Important Information - The company reported a write-off of $1.7 million related to its investment in dynamic cell therapies, which ceased operations in Q4 2024 [33] - Professional fees increased by $1.8 million year-over-year, primarily due to higher legal and investor relation costs [32] Q&A Session Summary Question: Timing for initiating a study in the metastatic setting - Management is consulting with key opinion leaders and plans to discuss details with the FDA over the next four to six months [39][40] Question: Update on EVANGELINE trial enrollment and data - Updates on enrollment and interim data results will be provided at upcoming meetings; the primary endpoint difference is due to requirements for early Ki-67 value assessments [43] Question: Pursuing global markets for metastatic breast cancer - The focus is currently on the U.S. FDA process, with plans to consider other major markets in early 2026 [48]

Drug Development and Clinical Trials - The company is developing oral (Z)-endoxifen for breast cancer prevention and treatment, with a focus on overcoming the limitations of tamoxifen[27]. - Four Phase 2 clinical trials are currently investigating (Z)-endoxifen, including the EVANGELINE trial, which aims to enroll approximately 190 patients[30]. - In the EVANGELINE trial, approximately 50% of patients in the 80 mg cohort reached the target plasma concentration of 500 to 1000 ng/mL, with an average plasma concentration of 484 ng/mL[31]. - The Karisma-(Z)-endoxifen study showed that the 1 mg dose reduced mammographic breast density by 17.3% and the 2 mg dose by 23.5%, compared to a minimal change of 0.27 percentage points in the placebo group[38]. - The I-SPY 2 trial reported that (Z)-endoxifen reduced Ki-67 by 69% and functional tumor volume by 30.4% after three weeks of treatment[44]. - The company plans to pursue a metastatic breast cancer indication for (Z)-endoxifen to expedite regulatory approval[51]. - The company may encounter delays in clinical trials or may not be able to conduct them in a timely manner, impacting product development[155]. - The company reported that interim clinical trial data may differ from final results, impacting the perceived value and approval of its product candidates[178]. - The company may experience delays in clinical trials due to various factors, including patient enrollment issues and regulatory approvals, which could hinder product commercialization[197]. Financial Performance and Capital Resources - As of December 31, 2024, the company had cash and cash equivalents of approximately $71.1 million[56]. - Research and development (R&D) expenses for the years ended December 31, 2024 and 2023 were approximately $14.1 million and $17.3 million, respectively, indicating a decrease of about 18.9%[62]. - The company has a history of operating losses and has not established sources of ongoing revenue to cover operating costs, which raises concerns about its ability to continue as a going concern[161]. - The company expects to need to raise substantial additional capital in the future to fund operations, as it currently has no sources of revenue[162]. - The company incurred net losses of approximately $25.5 million and $30.1 million for the years ended December 31, 2024 and 2023, respectively, with an accumulated deficit of approximately $211.8 million since inception[162]. Market Potential and Competitive Landscape - The global ER+ breast cancer treatment market is projected to reach $33.7 billion by 2030, growing at a CAGR of 7.89% from 2024 to 2030[54]. - The potential U.S. market for (Z)-endoxifen in breast cancer treatment and prevention could be up to $1 billion or more annually[54]. - The company may not achieve significant commercial market acceptance for its products, which could hinder revenue generation[169]. Regulatory Environment and Compliance - The FDA review user fee for submitting a New Drug Application (NDA) is $4.3 million for fiscal year 2025, highlighting the financial requirements for drug approval[82]. - Approval of a New Drug Application (NDA) requires FDA inspection of clinical sites and manufacturing facilities, with concerns potentially delaying approval[85]. - The FDA has various programs to expedite drug review processes, including breakthrough therapy designation and accelerated approval, which may allow for approval based on surrogate endpoints for serious conditions[84]. - The company is subject to rigorous regulation by the FDA and other international agencies, which may delay or prevent product approvals[180]. Intellectual Property and Legal Risks - The company owns and is pursuing 119 pending patent applications and has 13 issued patents as of February 3, 2025, which are crucial for its competitive advantage[212]. - On August 18, 2023, Intas Pharmaceuticals LTD. filed a Petition for Post Grant Review (PGR) to invalidate claims of U.S. Patent No. 11,572,334 titled "Methods for Making and Using Endoxifen"[217]. - On January 29, 2025, the PTAB issued a final decision declaring all claims under the Patent unpatentable[218]. - Litigation related to proprietary technology may lead to substantial costs and distract management, with risks of compromising confidential information during discovery[219]. - The current patent portfolio may not encompass all necessary rights for full product development and commercialization, potentially delaying or preventing product launches[224]. Operational Risks and Challenges - The company is dependent on third-party service providers for critical operational activities, which poses risks to its business[155]. - The company may face challenges in establishing sales, marketing, and commercial supply capabilities if any product candidates are approved[170]. - The company faces challenges in attracting and retaining qualified personnel, particularly in the greater Seattle area, which may lead to increased operating expenses due to labor shortages and high inflation[174]. - Business disruptions, including natural disasters and pandemics, could materially harm the company's financial condition and increase operational costs[202]. Corporate Governance and Management - The company employs two executive officers and thirteen full-time employees, with plans to hire more as current and future programs develop[148]. - The loss of the Chief Executive Officer could adversely affect the company's business, as his experience is critical for executing the business plan[171]. - The company aims to attract, retain, and motivate personnel through stock-based and cash-based compensation awards, aligning interests with stockholders[149].