Annexon Biosciences Provides Business Update and Reports First Quarter 2021 Financial Results

ANX005 Huntington’s Disease Phase 2 trial fully enrolled with data anticipated 2H 2021 –

– ANX009 First-in-Human dose-ranging trial completed with data expected summer 2021 –

– Next generation drug candidates, ANX105 and ANX1502, on track to submit INDs by end of 2021 –

Current cash position sufficient to fund operations through 2023

SOUTH SAN FRANCISCO, Calif., May 17, 2021 (GLOBE NEWSWIRE) — Annexon, Inc. (“Annexon”) (Nasdaq: ANNX), a clinical-stage biopharmaceutical company developing a pipeline of novel therapies for patients with classical complement-mediated disorders of the body, brain and eye, today announced first quarter 2021 financial results and business highlights.

Recent Business Highlights

Annexon is advancing a portfolio of innovative C1q inhibitors to stop classical complement-mediated autoimmune and neurodegenerative disease processes at the start in several indications. Recent portfolio highlights include:

  • Completed enrollment in Phase 2 trial of ANX005 in Huntington’s Disease (HD). The company successfully completed enrollment in a Phase 2 trial evaluating ANX005 in HD patients. ANX005 is an intravenously administered C1q inhibitor in development for autoimmune and neurodegenerative indications. Initial data from this trial is anticipated in the second half of 2021.

  • Completed dose escalation in first-in-human study of ANX009 subcutaneous formulation. The company successfully completed dosing of ANX009 in a Phase 1 dose-ranging study in healthy volunteers. ANX009 is a subcutaneously administered C1q inhibitor in development for autoimmune indications. Data from this study is anticipated in the summer of 2021.

  • Continued clinical trial progress for lead ANX005 and ANX007 C1q inhibitors. The company’s Phase 2/3 trial in Guillain-Barré Syndrome and Phase 2 trial in geographic atrophy continue to progress as planned, as well as initiation activities for the company’s Phase 2 trials in warm autoimmune hemolytic anemia and amyotrophic lateral sclerosis.

  • Pipeline expansion. The company continues to advance two novel classical pathway inhibitors, ANX105 (IV) and ANX1502 (oral small molecule), toward IND submission by the end of 2021 and plans to initiate clinical development in 2022.

“We are pleased with the strong progress on our mission to deliver transformative therapies for patients suffering from complement-driven autoimmune and neurodegenerative diseases,” said Douglas Love, Esq., president and chief executive officer of Annexon. “Annexon remains on track for another exciting year, and looking ahead, is sharply focused on effectively executing our several clinical programs while advancing multiple next generation drug candidates and driving our beachhead strategy to rapidly expand our platform into mechanistically related indications.”

First Quarter 2021 Financial Results

  • Research and development (R&D) expenses: R&D expenses were $20.7 million for the quarter ended March 31, 2021 compared to $10.2 million for the quarter ended March 31, 2020.

  • General and administrative (G&A) expenses: G&A expenses were $5.5 million for the quarter ended March 31, 2021 compared to $2.2 million for the quarter ended March 31, 2020.

  • Net loss: Net loss was $26.0 million for the quarter ended March 31, 2021 compared to $12.3 million for the quarter ended March 31, 2020.

About Annexon, Inc.

Annexon is a clinical-stage biopharmaceutical company developing a pipeline of novel therapies for patients with classical complement-mediated disorders of the body, brain and eye. The company’s pipeline is based on its platform technology addressing well-researched classical complement-mediated autoimmune and neurodegenerative disease processes, both of which are triggered by aberrant activation of C1q, the initiating molecule of the classical complement pathway. Annexon is deploying a rigorous, biomarker-driven development strategy designed to improve the probability of technical success over shorter development timelines. For more information, visit www.annexonbio.com.

Forward Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. In some cases, you can identify forward-looking statements by terminology such as “aim,” “anticipate,” “assume,” “believe,” “contemplate,” “continue,” “could,” “design,” “due,” “estimate,” “expect,” “goal,” “intend,” “may,” “objective,” “plan,” “positioned,” “potential,” “predict,” “seek,” “should,” “target,” “on track,” “will,” “would” and other similar expressions that are predictions of or indicate future events and future trends, or the negative of these terms or other comparable terminology. All statements other than statements of historical facts contained in this press release are forward-looking statements. These forward-looking statements include, but are not limited to, statements about: sufficiency of the company’s cash to fund operations; continuing advancement of the company’s innovative portfolio; timing of data from clinical trials and regulatory submissions; timing of completion of clinical studies and clinical development milestones; the company’s ability to deliver on its objectives; and the implementation of the company’s business model and strategic plans for its business and product candidates, including potential treatment indications and additional indications that the company may pursue. Forward-looking statements are not guarantees of future performance and are subject to risks and uncertainties that could cause actual results and events to differ materially from those anticipated, including, but not limited to, risks and uncertainties related to: the company’s history of net operating losses; the company’s ability to obtain necessary capital to fund its clinical programs; the early stages of clinical development of the company’s product candidates; the effects of COVID-19 or other public health crises on the company’s clinical programs and business operations; the company’s ability to obtain regulatory approval of and successfully commercialize its product candidates; any undesirable side effects or other properties of the company’s product candidates; the company’s reliance on third-party suppliers and manufacturers; the outcomes of any future collaboration agreements; and the company’s ability to adequately maintain intellectual property rights for its product candidates. These and other risks are described in greater detail under the section titled “Risk Factors” contained in the company’s Annual Report on Form 10-K and Quarterly Reports on Form 10-Q and the company’s other filings with the SEC. Any forward-looking statements that the company makes in this press release are made pursuant to the Private Securities Litigation Reform Act of 1995, as amended, and speak only as of the date of this press release. Except as required by law, the company undertakes no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

ANNEXON, INC.
Condensed Consolidated Statements of Operations
(in thousands, except share and per share amounts)

Three Months Ended
March 31,

2021

2020

Operating expenses:

Research and development (1)

$

20,696

$

10,217

General and administrative (1)

5,452

2,239

Total operating expenses

26,148

12,456

Loss from operations

(26,148

)

(12,456

)

Other income, net

142

115

Net loss

(26,006

)

(12,341

)

Accretion on redeemable convertible preferred stock

(279

)

Net loss attributable to common stockholders

$

(26,006

)

$

(12,620

)

Net loss per share attributable to common stockholders, basic and diluted

$

(0.68

)

$

(29.10

)

Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted

38,163,062

433,749

(1) Includes the following stock-based compensation expense:

Research and development

$

1,546

$

325

General and administrative

$

1,416

$

338

ANNEXON, INC.
Condensed Consolidated Balance Sheets
(in thousands)

March 31,
2021

December 31,
2020

Assets

Current assets:

Cash and cash equivalents

$

206,669

$

268,565

Short-term investments

119,985

82,641

Prepaid expenses and other current assets

3,868

2,805

Total current assets

330,522

354,011

Restricted cash

1,166

Property and equipment

1,429

1,935

Total assets

$

333,117

$

355,946

Liabilities and Stockholders’ Equity

Current liabilities:

Accounts payable

$

4,518

$

3,734

Accrued liabilities

5,779

6,497

Deferred rent, current

398

391

Total current liabilities

10,695

10,622

Deferred rent

946

1,046

Total liabilities

11,641

11,668

Stockholders’ Equity:

Common stock

38

38

Additional paid-in capital

513,539

510,309

Accumulated other comprehensive loss

(103

)

(77

)

Accumulated deficit

(191,998

)

(165,992

)

Total stockholders’ equity

321,476

344,278

Total liabilities and stockholders’ equity

$

333,117

$

355,946

CONTACT: Investor Contacts: Jennifer Lew, Chief Financial Officer Annexon Biosciences [email protected] Sara Michelmore [email protected] Media Contacts: Miriam Mason Annexon Biosciences [email protected]
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