Exhibit 99.1




Aldeyra Therapeutics Announces Third-Quarter 2020 Financial

Results and Provides Corporate Update



Initiation of Phase 3 Objective Sign Trial in Dry Eye Disease Planned for the Fourth Quarter 2020



Phase 2 Clinical Trials of ADX-629 in COVID-19, Atopic Asthma, and Psoriasis Expected to Initiate in the Fourth Quarter of 2020



Top-line Results from the Phase 3 INVIGORATE Clinical Trial in Allergic Conjunctivitis Expected in the First Half of 2021



Cash, Cash Equivalents, and Marketable Securities of $86.2 Million as of September 30, 2020, Expected to Support Operations Through 2022



Management to Host Conference Call at 8:00 a.m. ET Today

LEXINGTON, Mass., November 5, 2020Aldeyra Therapeutics, Inc. (Nasdaq: ALDX) (Aldeyra), a clinical-stage biotechnology company focused on the development of novel therapies with the potential to improve the lives of patients with immune-mediated diseases, today announced financial results for the third quarter of 2020 and provided a corporate update.

“Our novel RASP inhibitor reproxalap continues to progress toward New Drug Application (NDA) submissions for dry eye disease and allergic conjunctivitis, two of the largest markets in ophthalmology,” stated Todd C. Brady, M.D., Ph.D., President and CEO of Aldeyra. “Among a number of key clinical milestones planned for the fourth quarter of 2020, we expect to initiate a pivotal Phase 3 objective sign clinical trial of reproxalap for the treatment of dry eye disease, and Phase 2 clinical trials of ADX-629 in COVID-19, atopic asthma, and psoriasis.”

“We concluded the third quarter in a strong financial position, with cash, cash equivalents, and marketable securities of $86.2 million as of September 30,” Dr. Brady continued. “Based on our current operating plans, we expect to have sufficient capital to fund operations through 2022, including NDA submissions for reproxalap in dry eye disease and allergic conjunctivitis, assuming positive clinical trial results and regulatory review.”

Recent Highlights



American Academy of Ophthalmology 2020: Aldeyra announced the presentation of new clinical utility data from the Phase 2 allergen chamber clinical trial of reproxalap in allergic conjunctivitis. The data will be presented in a poster at the American Academy of Ophthalmology 2020 Virtual Annual Meeting from November 11 through November 15, 2020.



Phase 2 Clinical Trial Data Published in Journal of Ocular Pharmacology and Therapeutics: The peer-reviewed Journal of Ocular Pharmacology and Therapeutics published the positive results of a randomized, corticosteroid-controlled Phase 2 clinical trial of reproxalap in patients with noninfectious anterior uveitis, a sight-threatening ocular inflammatory condition typically treated with topical corticosteroids.



Regulatory Clearance for Phase 2 Clinical Trial in COVID-19: In September 2020, Aldeyra announced receipt of a Study May Proceed letter from the U.S. Food and Drug Administration to begin a Phase 2 clinical trial evaluating ADX-629, a novel orally available RASP inhibitor, for the treatment of adult patients hospitalized for COVID-19.

Clinical-Stage Pipeline Updates



Reproxalap – A Novel Topical Ocular RASP Inhibitor for the Treatment of Dry Eye Disease and Allergic Conjunctivitis: Aldeyra plans to initiate a Phase 3 clinical trial in the fourth quarter of 2020 to assess the activity of reproxalap in objective signs of dry eye disease, including tear RASP levels, after single and multiple doses of drug. The trial initiation timing is subject to the finalization of trial design, assay development, and potential disruptions due to the COVID-19 pandemic. Enrollment is ongoing in the Phase 3 INVIGORATE Trial of reproxalap for the treatment of patients with allergic conjunctivitis. INVIGORATE is a randomized, double-masked, crossover, vehicle-controlled clinical trial to assess the efficacy and safety of reproxalap compared to vehicle using an allergen chamber. Consistent with prior allergic conjunctivitis trials, the primary endpoint will be subject-reported ocular itching score, as agreed with FDA. Aldeyra expects top-line results in the first half of 2021. NDA submission in dry eye disease and allergic conjunctivitis is expected by the end of 2021, assuming positive clinical trial results and regulatory review.



ADX-629 A Novel Orally Available RASP Inhibitor for the Treatment of Systemic Inflammatory Diseases: Phase 2 clinical testing of ADX-629 for the treatment of COVID-19, atopic asthma, and psoriasis is expected to begin by the end of this year.


ADX-2191 – 0.8% Methotrexate Intravitreal Injection for Rare Proliferative Ocular Diseases: Completion of enrollment in Part 1 of the Phase 3 GUARD Trial of ADX-2191 for the prevention of proliferative vitreoretinopathy (PVR), a rare but serious sight-threatening retinal disease with no approved treatment, is expected in 2021.

Financial Results for the Quarter Ended September 30, 2020

For the quarter ended September 30, 2020, Aldeyra reported a net loss of $8.9 million, compared with a net loss of $18.7 million for the quarter ended September 30, 2019. Net loss per share was $0.23 for the quarter ended September 30, 2020, compared with $0.69 for the same period in 2019. Losses have resulted from the costs of Aldeyra’s clinical trials and research and development programs, as well as from general and administrative expenses.

Research and development expenses were $6.1 million for the quarter ended September 30, 2020, compared with $16.2 million for the same period in 2019. The decrease of $10.1 million is primarily related to decreases in clinical research and development expenditures and lower personnel related costs, partially offset by increases in manufacturing and preclinical development costs.

General and administrative expenses were $2.3 million for the quarter ended September 30, 2020, compared with $2.8 million for the same period in 2019. The decrease of $0.5 million is due to decreases in personnel related costs and other miscellaneous administrative costs.

For the quarter ended September 30, 2020, total operating expenses were $8.4 million, compared with total operating expenses of $19.0 million for the same period in 2019.

As of September 30, 2020, cash, cash equivalents, and marketable securities were $86.2 million. Based on current operating plans, Aldeyra’s cash, cash equivalents, and marketable securities as of September 30, 2020 are expected to be sufficient to fund operations through the end of 2022, including potential NDA submissions for reproxalap in dry eye disease and allergic conjunctivitis, assuming positive clinical trial results and regulatory review. Use of Aldeyra’s cash, cash equivalents, and marketable securities is also expected to include the continuation of Part 1 of the Phase 3 GUARD Trial in PVR and Phase 2 clinical testing of ADX-629.

Conference Call & Webcast Information

Aldeyra will host a conference call today at 8:00 a.m. ET to discuss its third-quarter 2020 financial results. The dial-in numbers are (866) 211-4098 for domestic callers and (647) 689-6613 for international callers. The Conference ID number is 5472726. Due to the expected high demand on our conference provider, please plan to dial in to the call at least 15 minutes prior to the start time.

A live webcast of the conference call will also be available on the investor relations page of the company’s corporate website at https://ir.aldeyra.com. After the live webcast, the event will remain archived on the Aldeyra Therapeutics website for 90 days.

About Aldeyra Therapeutics

Aldeyra Therapeutics is a clinical-stage biotechnology company focused on the development of novel therapies with the potential to improve the lives of patients with immune-mediated diseases. Two of the company’s lead compounds, reproxalap and ADX-629, target reactive aldehyde species (RASP), which are elevated in ocular and systemic inflammatory disease and result in cytokine release via activation of a broad array of inflammatory factors, including NF-KB, inflammasomes, and Scavenger Receptor A. Reproxalap is being evaluated in Phase 3 clinical trials in patients with dry eye disease and allergic conjunctivitis. The company’s clinical pipeline also includes ADX-2191, a dihydrofolate reductase inhibitor in Phase 3 testing for proliferative vitreoretinopathy, and ADX-1612, a chaperome inhibitor in development for COVID-19 and ovarian cancer. For more information, visit https://www.aldeyra.com/ and follow us on LinkedIn, Facebook, and Twitter.

Safe Harbor Statement

This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding Aldeyra’s strategy, future operations, expected cash runway, prospects, plans, and objectives and Aldeyra’s plans and expectations for its product candidates, including reproxalap, ADX-629, ADX-2191, and ADX-1612. Aldeyra intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by terms such as, but not limited to, “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “anticipate,” “project,” “on track,” “scheduled,” “target,” “design,” “estimate,” “predict,” “potential,” “aim,” “plan” or the negative of these terms, and similar expressions intended to identify forward-looking statements. Such forward-looking statements are based upon current expectations that involve risks, changes in circumstances, assumptions, and uncertainties. Aldeyra is at an early stage of development and may not ever have any products that generate significant revenue. All of Aldeyra’s development timelines may be subject to adjustment depending on recruitment rate, regulatory review, preclinical and clinical results, and other factors that could delay the initiation or completion of clinical trials.

As a result of the COVID-19 pandemic, clinical site availability, staffing, and patient recruitment have been negatively affected and the timelines to complete Aldeyra’s clinical trials may be delayed. Important factors that could cause actual results to differ materially from those reflected in Aldeyra’s forward-looking statements include, among others, the timing of enrollment, commencement and completion of Aldeyra’s clinical trials, the timing and success of preclinical studies and clinical trials conducted by Aldeyra and its development partners; updated or refined data based on Aldeyra’s continuing review and quality control analysis of clinical data, Aldeyra’s ability to design clinical trials with protocols and endpoints acceptable to applicable regulatory authorities; delay in or failure to obtain regulatory approval of Aldeyra’s product candidates; the ability to maintain regulatory approval of Aldeyra’s product candidates, and the labeling for any approved products; the risk that prior results, such as signals of safety, activity or durability of effect, observed from preclinical or clinical trials, will not be replicated or will not continue in ongoing or future studies or trials involving Aldeyra’s product candidates; the scope, progress, expansion, and costs of developing and commercializing Aldeyra’s product candidates; the current and potential future impact of the COVID-19 pandemic on Aldeyra’s business, results of operations and financial position; uncertainty as to Aldeyra’s ability to commercialize (alone or with others) Aldeyra’s product candidates following regulatory approval, if any; the size and growth of the potential markets and pricing for Aldeyra’s product candidates and the ability to serve those markets; Aldeyra’s expectations regarding Aldeyra’s expenses and revenue, the sufficiency or use of Aldeyra’s cash resources and needs for additional financing; political, economic, legal, social and health risks, including the recent COVID-19 outbreak and subsequent public health measures, that may affect Aldeyra’s business or the global economy; the rate and degree of market acceptance of any of Aldeyra’s product candidates; Aldeyra’s expectations regarding competition; Aldeyra’s anticipated growth strategies; Aldeyra’s ability to attract or retain key personnel; Aldeyra’s limited sales and marketing infrastructure; Aldeyra’s ability to establish and maintain development partnerships; Aldeyra’s ability to successfully integrate acquisitions into its business; Aldeyra’s expectations regarding federal, state and foreign regulatory requirements; regulatory developments in the United States and foreign countries; Aldeyra’s ability to obtain and maintain intellectual property protection for its product candidates; the anticipated trends and challenges in Aldeyra’s business and the market in which it operates; and other factors that are described in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of Aldeyra’s Annual Report on Form 10-K for the year ended December 31, 2019 and Aldeyra’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, which are on file with the Securities and Exchange Commission (SEC) and available on the SEC’s website at www.sec.gov. Additional factors may be set forth in those sections of Aldeyra’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020, expected to be filed with the SEC in the fourth quarter of 2020.

In addition to the risks described above and in Aldeyra’s other filings with the SEC, other unknown or unpredictable factors also could affect Aldeyra’s results. No forward-looking statements can be guaranteed, and actual results may differ materially from such statements. The information in this release is provided only as of the date of this release, and Aldeyra undertakes no obligation to update any forward-looking statements contained in this release on account of new information, future events, or otherwise, except as required by law.




     September 30,
    December 31,



Current assets:


Cash and cash equivalents

   $ 71,175,507     $ 16,425,830  

Cash equivalent - reverse repurchase agreements

     15,000,000       28,000,000  

Marketable securities

     —         28,938,545  

Prepaid expenses and other current assets

     2,017,273       1,804,450  







Total current assets

     88,192,780       75,168,825  

Right-of-use assets

     52,195       201,007  

Fixed assets, net

     79,455       148,449  







Total assets

   $ 88,324,430     $ 75,518,281  









Current liabilities:


Accounts payable

   $ 123,900     $ 808,302  

Accrued expenses

     4,018,635       11,873,122  

Current portion of credit facility

     2,259,417       —    

Current portion of operating lease liabilities

     58,720       226,328  







Total current liabilities

     6,460,672       12,907,752  

Long-term debt

     12,693,311       14,528,212  







Total liabilities

     19,153,983       27,435,964  







Commitments and contingencies


Stockholders’ equity:


Common stock, voting, $0.001 par value; 150,000,000 authorized
and 38,631,709 and 28,656,832 shares issued and outstanding, respectively

     38,632       28,657  

Additional paid-in capital

     294,755,363       247,409,793  

Accumulated other comprehensive income

     —         5,866  

Accumulated deficit

     (225,623,548     (199,361,999







Total stockholders’ equity

     69,170,447       48,082,317  







Total liabilities and stockholders’ equity

   $ 88,324,430     $ 75,518,281  











     Three Months Ended September 30,     Nine Months Ended September 30,  
     2020     2019     2020     2019  

Operating expenses:


Research and development

   $ 6,133,580     $ 16,223,972     $ 17,653,058     $ 34,737,420  

Acquired in-process research and development

     —         (47,102     —         6,500,602  

General and administrative

     2,255,617       2,839,319       7,480,461       8,940,771  













Loss from operations

     (8,389,197     (19,016,189     (25,133,519     (50,178,793













Other income (expense):


Interest income

     5,215       330,329       287,025       1,262,378  

Interest expense

     (489,191     (29,154     (1,415,055     (59,766













Total other income (expense), net

     (483,976     301,175       (1,128,030     1,202,612  













Loss before income taxes

     (8,873,173     (18,715,014     (26,261,549     (48,976,181

Income tax benefit

     —         —         —         1,309,973  













Net loss

   $ (8,873,173   $ (18,715,014   $ (26,261,549   $ (47,666,208













Net loss per share - basic and diluted

   $ (0.23   $ (0.69   $ (0.81   $ (1.77













Weighted average common shares outstanding - basic and diluted

     37,796,946       27,111,600       32,395,217       26,928,725  













Corporate Contact:    Investor & Media Contact:
David McMullin    Scott Solomon
Aldeyra Therapeutics, Inc.    Sharon Merrill Associates, Inc.
Tel: 781-761-4904 ext. 218    Tel: 617-542-5300
dmcmullin@aldeyra.com    ALDX@investorrelations.com

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