Marinus Pharmaceuticals Provides Business Update and Reports Fourth Quarter and Full Year 2021 Financial Results

21 March 2022

RADNOR, Pa.--(BUSINESS WIRE)-- Marinus Pharmaceuticals, Inc. (Nasdaq: MRNS), a pharmaceutical company dedicated to the development of innovative therapeutics to treat seizure disorders, today reported business highlights and financial results for the fourth quarter and year ended December 31, 2021.

“This year has already proven to be pivotal for Marinus following the FDA’s approval of ZTALMY®, the first and only treatment for seizures associated with CDKL5 deficiency disorder,” said Scott Braunstein, M.D., Chief Executive Officer of Marinus Pharmaceuticals. “This achievement further validates our clinical development plans for ganaxolone as an innovative treatment option across a range of seizure disorders and sets the stage as we move into our next chapter of growth as a commercial stage company. We look forward to building on this momentum as the approval enables the potential for significant non-dilutive funding in the near-term to execute on our business strategy and invest in our future.”

Commercial Preparedness - CDKL5 Deficiency Disorder

ZTALMY® (ganaxolone) oral suspension received U.S. Food and Drug Administration (FDA) approval on March 18, 2022 for the treatment of seizures associated with cyclin-dependent kinase-like 5 deficiency disorder (CDD) in patients two years of age and older.

Clinical Pipeline Update

CDKL5 Deficiency Disorder (CDD)

Tuberous Sclerosis Complex (TSC)

Status Epilepticus

Next Generation Ganaxolone and Lennox-Gastaut Syndrome (LGS)

Second generation ganaxolone formulation is being developed to improve pharmacokinetic (PK) characteristics and expand the therapeutic utility, including efficacy, dosing frequency and tolerability.

General Business and Financial Update

Financial Results

Corporate Guidance

December 31,
2021

December 31,
2020

(unaudited)

ASSETS

Cash and cash equivalents

122,927

138,509

Investments

1,474

Other assets

13,913

10,479

Total assets

136,840

150,462

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities

40,566

10,729

Long Term Debt, Net

40,809

Other long-term liabilities

1,979

2,534

Total liabilities

83,354

13,263

Total stockholders’ equity

53,486

137,199

Total liabilities and stockholders’ equity

136,840

150,462

Three Months Ended
December 31,

Twelve Months Ended
December 31,

2021

2020

2021

2020

(unaudited)

(unaudited)

Revenue:

Federal contract revenue

1,520

1,546

6,358

1,718

Collaboration revenue

-

8,987

Total revenue

1,520

1,546

15,345

1,718

Expenses:

Research and development

18,014

13,044

73,520

51,106

General and administrative

10,622

6,005

37,278

18,549

Cost of collaboration revenue

1,478

Loss from operations

-27,116

-17,503

-96,931

-67,937

Interest income

23

40

80

499

Interest expense

-1,553

-2,582

Other income (expense), net

341

-6

657

-37

Net loss and comprehensive loss

-28,305

-17,469

-98,776

-67,475

Deemed dividends on convertible preferred stock

-8,880

Net loss applicable to common shareholders

-28,305

-17,469

-98,776

-76,355

Per share information:

Net loss per share of common stock—basic and diluted

-0.77

-0.55

-2.69

-2.80

Basic and diluted weighted average shares outstanding

36,746,112

31,832,970

36,663,340

27,270,055

About Marinus Pharmaceuticals

Marinus is a pharmaceutical company dedicated to the development of innovative therapeutics to treat seizure disorders. Ganaxolone is a neuroactive steroid GABAA receptor modulator that acts on a well-characterized target in the brain known to have anti-seizure effects. It is being developed in IV and oral dose formulations intended to maximize therapeutic reach to adult and pediatric patient populations in both acute and chronic care settings. For more information visit www.marinuspharma.com.

Forward-Looking Statements

To the extent that statements contained in this press release are not descriptions of historical facts regarding Marinus, they are forward-looking statements reflecting the current beliefs and expectations of management made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Words such as "may", "will", "expect", "anticipate", "estimate", "intend", "believe", and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. Examples of forward-looking statements contained in this press release include, among others, statements regarding our expected clinical development plans, enrollment in our clinical trials, regulatory communications and submissions and product launches for ganaxolone, and the timing thereof; our commercialization plans; our expectations regarding scheduling by the U.S. Drug Enforcement Administration and the expected timing thereof; our plans to launch a patient assistance program that provides ongoing financial support to eligible patients and caregivers; our expectations regarding BARDA funding; our expectations and beliefs regarding the FDA and EMA with respect to our product candidates; our expectations regarding the development of new formulations and prodrug candidates; our expectations regarding the Orion Corporation collaboration; our expectations regarding our license agreement with Ovid Therapeutics; our expectations to monetize the PRV; our expectations regarding drawing down on the Oaktree credit facility; our expectations regarding the resupply of clinical trial materials for the RAISE trial and the expected timing thereof; our expectation regarding the impact of the COVID-19 pandemic on our business and clinical development plans; our financial projections; and the potential safety and efficacy of ganaxolone, as well as its therapeutic potential in a number of indications; and other statements regarding the company's future operations, financial performance, financial position, prospects, objectives and other future event.

Forward-looking statements in this press release involve substantial risks and uncertainties that could cause our clinical development programs, future results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements. Such risks and uncertainties include, among others, our ability to establish commercial infrastructure and capabilities to launch ZTALMY; physician and patient acceptance of ZTALMY; our ability to obtain adequate market access for ZTALMY; the varying interpretation of clinical data; the scheduling of ZTALMY by the U.S. Drug Enforcement Administration; our ability to comply with the FDA’s requirement for additional post-marketing studies in the required time frames; the timing of regulatory filings for our other product candidates; the potential that regulatory authorities, including the FDA and EMA, may not grant or may delay approval for our product candidates; uncertainties and delays relating to the design, enrollment, completion, and results of clinical trials; unanticipated costs and expenses; early clinical trials may not be indicative of the results in later clinical trials; clinical trial results may not support regulatory approval or further development in a specified indication or at all; actions or advice of the FDA or EMA may affect the design, initiation, timing, continuation and/or progress of clinical trials or result in the need for additional clinical trials; our ability to obtain and maintain regulatory approval for our product candidate; our ability to develop new formulations of ganaxolone or prodrugs; our ability to obtain, maintain, protect and defend intellectual property for our product candidates; the potential negative impact of third party patents on our or our collaborators’ ability to commercialize ganaxolone; delays, interruptions or failures in the manufacture and supply of our product candidate; the size and growth potential of the markets for the company’s product candidates, and the company’s ability to service those markets; the company’s cash and cash equivalents may not be sufficient to support its operating plan for as long as anticipated; the company’s expectations, projections and estimates regarding expenses, future revenue, capital requirements, and the availability of and the need for additional financing; the company’s ability to obtain additional funding to support its clinical development and commercial programs; the potential for Orion to breach the collaboration or terminate the agreement in accordance with its terms; the potential for Orion to recoup a percentage of the upfront fee depending on the additional pre-clinical testing; the effect of the COVID-19 pandemic on our business, the medical community, regulators and the global economy; and the availability or potential availability of alternative products or treatments for conditions targeted by us that could affect the availability or commercial potential of our product candidate. This list is not exhaustive and these and other risks are described in our periodic reports, including the annual report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, filed with or furnished to the Securities and Exchange Commission and available at www.sec.gov. Any forward-looking statements that we make in this press release speak only as of the date of this press release. We assume no obligation to update forward-looking statements whether as a result of new information, future events or otherwise, after the date of this press release.

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