You should read the following discussion and analysis of our financial condition
and results of operations together with our condensed consolidated financial
statements and related notes appearing elsewhere in this Quarterly Report on
Form 10-Q and the final prospectus for our initial public offering filed
pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended, or the
Securities Act, with the Securities and Exchange Commission, or SEC, on
October 16, 2020. Some of the information contained in this discussion and
analysis or set forth elsewhere in this Quarterly Report on Form 10-Q, including
information with respect to our plans and strategy for our business and related
financing, includes forward-looking statements that involve risks and
uncertainties. As a result of many factors, including those factors set forth in
the "Risk Factors" section of this Quarterly Report on Form 10-Q, our actual
results could differ materially from the results described in or implied by the
forward-looking statements contained in the following discussion and analysis.

Overview



We are a clinical-stage biopharmaceutical company translating genetic insights
into the development of therapies for central nervous system, or CNS, disorders
characterized by neuronal imbalance. Normal brain function requires a delicate
balance of excitation and inhibition in neuronal circuits, which, when
dysregulated, leads to abnormal function and disease. We are applying insights
into the genetic mutations that drive excitation-inhibition imbalance in
diseases to select biological targets for severe pediatric epilepsies and more
broadly for prevalent psychiatric diseases and neurologic disorders. We apply a
deliberate and pragmatic precision approach, leveraging a suite of translational
tools including novel transgenic and predictive translational animal models and
electrophysiology markers, to enable an efficient path to proof-of-concept in
patients. Through this approach, we have established a broad portfolio,
including five disclosed programs across multiple CNS disorders, including
depression, epilepsy, movement disorders and pain syndromes, with three
clinical-stage product candidates. We expect multiple topline clinical trial
readouts from all three programs within the next 18 months and anticipate the
launch of a new clinical development program in 2021. We intend to develop
differentiated therapies that can deliver long-term benefits to human health by
meaningfully impacting patients and society.

Our most advanced programs, PRAX-114 and PRAX-944, are currently in Phase 2
development. PRAX-114 is being developed for the treatment of major depressive
disorder and perimenopausal depression. Together, these conditions affect more
than 22 million patients in the United States. PRAX-944 is a selective small
molecule inhibitor of T-type calcium channels for the treatment of essential
tremor, a progressive and debilitating movement disorder affecting up to seven
million people in the United States. In addition, we have initiated a Phase 1
trial of PRAX-562, a persistent sodium current blocker, for the treatment of a
broad range of rare, devastating CNS disorders, such as severe pediatric
epilepsy and adult cephalgia. In addition to our clinical programs, we have two
disclosed preclinical product candidates in development for severe genetic
epilepsies.

We were incorporated in 2015 and commenced operations in 2016. Since inception,
we have devoted substantially all of our resources to developing our preclinical
and clinical product candidates, building our intellectual property portfolio,
business planning, raising capital and providing general and administrative
support for these operations. We employ a "virtual" research and development
model, relying heavily upon external consultants, collaborators and contract
research organizations to conduct our preclinical and clinical activities. Since
inception, we have financed our operations primarily with proceeds from the
issuance of convertible debt, sales of our Series A redeemable convertible
preferred stock, Series B redeemable convertible preferred stock, Series B-1
redeemable convertible preferred stock, Series C redeemable convertible
preferred stock and Series C-1 redeemable convertible preferred stock and the
closing of our initial public offering, or IPO.

On October 20, 2020, we completed our IPO in which we issued and sold 11,500,000
shares of our common stock at a public offering price of $19.00 per share,
including 1,500,000 shares of common stock sold pursuant to the underwriters'
exercise of their option to purchase additional shares of common stock, for
aggregate gross proceeds of $218.5 million. We raised approximately
$199.9 million in net proceeds after deducting underwriting discounts and
commissions and offering expenses payable by us. Upon the closing of the IPO,
all of the outstanding shares of our Series A redeemable convertible preferred
stock, Series B redeemable convertible preferred stock, Series B-1 redeemable
convertible preferred stock, Series C redeemable convertible preferred stock and
Series C-1 redeemable convertible preferred stock automatically converted into
25,067,977 shares of common stock. Subsequent to the closing of the IPO, there
were no shares of preferred stock outstanding. In connection with the closing of
the IPO, we filed an Amended and Restated Certificate of Incorporation to change
the authorized capital stock to 150,000,000 shares of common stock and
10,000,000 shares of undesignated preferred stock.



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We are a development stage company and we have not generated any revenue from
product sales, and do not expect to do so for several years, if at all. All of
our programs are still in preclinical and clinical development. Our ability to
generate product revenue sufficient to achieve profitability will depend heavily
on the successful development and eventual commercialization of one or more of
our product candidates, if approved. We have incurred recurring operating losses
since inception, including a net loss of $36.1 million for the nine months ended
September 30, 2020. As of September 30, 2020, we had an accumulated deficit of
$123.3 million. We expect to incur significant expenses and operating losses for
the foreseeable future as we expand our research and development activities. In
addition, our losses from operations may fluctuate significantly from
quarter-to-quarter and year-to-year, depending on the timing of our clinical
trials and our expenditures on other research and development activities. We
anticipate that our expenses will increase significantly in connection with our
ongoing activities, as we:


• advance our lead product candidates, PRAX-114 and PRAX-944, to late stage


          clinical trials;




  •   advance our PRAX-562 product candidate to Phase 2 clinical trials;




  •   advance our preclinical programs to clinical trials;




  •   further invest in our pipeline;




  •   further invest in our manufacturing capabilities;




  •   seek regulatory approval for our investigational medicines;



• maintain, expand, protect and defend our intellectual property portfolio;






  •   acquire or in-license technology;




     •    secure facilities to support continued growth in our research,
          development and commercialization efforts;



• increase our headcount to support our development efforts and to expand


          our clinical development team; and



• incur additional costs and headcount associated with our transition to

becoming a public company.




In addition, as we progress toward marketing approval for any of our product
candidates, we expect to incur significant commercialization expenses related to
product manufacturing, marketing, sales and distribution.

As a result, we will need substantial additional funding to support our
continuing operations and pursue our growth strategy. Until such time as we can
generate significant revenue from product sales, if ever, we expect to finance
our operations through the sale of equity, debt financings or other capital
sources, including potential collaborations with other companies or other
strategic transactions. We may be unable to raise additional funds or enter into
such other agreements or arrangements when needed on favorable terms, or at all.
If we fail to raise capital or enter into such agreements as, and when, needed,
we may have to significantly delay, scale back or discontinue the development
and commercialization of one or more of our product candidates or delay our
pursuit of potential in-licenses or acquisitions.

Because of the numerous risks and uncertainties associated with product
development, we are unable to predict the timing or amount of increased expenses
or when or if we will be able to achieve or maintain profitability. Even if we
are able to generate product sales, we may not become profitable. If we fail to
become profitable or are unable to sustain profitability on a continuing basis,
then we may be unable to continue our operations at planned levels and be forced
to reduce or terminate our operations.

As of September 30, 2020, we had cash and cash equivalents of $114.8 million. We
believe that our existing cash and cash equivalents, combined with the net
proceeds from our IPO, will enable us to fund our operating expenses and capital
expenditure requirements into the fourth quarter of 2022. We have based this
estimate on assumptions that may prove to be wrong, and we could exhaust our
available capital resources sooner than we expect. See "-Liquidity and Capital
Resources."

COVID-19 Business Update



With the global spread of the ongoing COVID-19 pandemic in 2020, we have
implemented business continuity plans designed to address and mitigate the
impact of the COVID-19 pandemic on our employees and our business, including our
preclinical studies and clinical trials. Our operations are considered an
essential business and we are continuing to operate during this period. We have
taken measures to secure our research and development activities. While we are
experiencing limited financial impacts at this time, given the global economic
slowdown, the overall disruption of global healthcare systems and the other
risks and uncertainties associated with the pandemic, our business, financial
condition and results of operations could be materially adversely affected. We
continue to closely monitor the COVID-19 pandemic as we evolve our business
continuity plans, clinical development plans and response strategy.



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In addition, while we have taken and are continuing to take steps to mitigate
against possible delays, our planned clinical trials may be affected by the
COVID-19 pandemic, including (i) delays or difficulties in enrolling and
retaining patients in our planned clinical trials, including patients that may
not be able or willing to comply with clinical trial protocols if quarantines
impede patient movement or interrupt healthcare services; (ii) delays or
difficulties in clinical site initiation, including difficulties in recruiting
and retaining clinical site investigators and clinical site staff;
(iii) diversion or prioritization of healthcare resources away from the conduct
of clinical trials and towards the COVID-19pandemic, including the diversion of
hospitals serving as our clinical trial sites and hospital staff supporting the
conduct of our clinical trials, and because, who, as healthcare providers, may
have heightened exposure to COVID-19 and adversely impact our clinical trial
operations; (iv) interruption of our future clinical supply chain or key
clinical trial activities, such as clinical trial site monitoring, due to
limitations on travel imposed or recommended by federal, state/provincial or
municipal governments, employers and others; and (v) limitations in outsourced
third-party resources that would otherwise be focused on the conduct of our
planned clinical trials, including because of sickness of third-party personnel
or their families, or the desire of third-party personnel to avoid contact with
large groups of people.

Financial Operations Overview

Revenue

We have not generated any revenue since inception and do not expect to generate
any revenue from the sale of products for several years, if at all. If our
development efforts for our current or future product candidates are successful
and result in marketing approval or collaboration or license agreements with
third parties, we may generate revenue in the future from a combination of
product sales or payments from collaboration or license agreements that we may
enter into with third parties.

Operating Expenses

Research and Development Expense

The nature of our business and primary focus of our activities generate a significant amount of research and development costs. Research and development expenses represent costs incurred by us for the following:





  •   costs to develop our portfolio;




  •   discovery efforts leading to development candidates;




  •   clinical development costs for our programs; and




  •   costs to develop our manufacturing technology and infrastructure.

The costs above comprise the following categories:

• personnel-related expenses, including salaries, benefits and stock-based


          compensation expense;




     •    expenses incurred under agreements with third parties, such as

consultants, investigative sites and contract research organizations, or

CROs, that conduct our preclinical and clinical studies and in-licensing


          arrangements;




  •   costs incurred to maintain compliance with regulatory requirements;



• costs incurred with third-party contract manufacturing organizations, or

CMOs, to acquire, develop and manufacture materials for preclinical and


          clinical studies; and




     •    depreciation, amortization and other direct and allocated expenses,

including rent, insurance and other operating costs, incurred as a result

of our research and development activities.




We expense research and development costs as incurred. We recognize external
development costs based on an evaluation of the progress to completion of
specific tasks using information provided to us by our vendors and our clinical
investigative sites. Payments for these activities are based on the terms of the
individual agreements, which may differ from the pattern of costs incurred, and
are reflected in our consolidated balance sheets as prepaid expenses or accrued
research and development expenses. Non-refundable advance payments for goods or
services to be received in the future for use in research and development
activities are deferred and capitalized, even when there is no alternative
future use for the research and development. The capitalized amounts are
expensed as the related goods are delivered or the services are performed.

A significant portion of our research and development costs have been external
costs. We track direct external research and development expenses to specific
programs upon commencement. Due to the number of ongoing programs and our
ability to use resources across several projects, indirect or shared operating
costs incurred for our research and development programs, such as personnel,
facility costs and certain consulting costs, are not recorded or maintained on a
program-specific basis.



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Our major programs, PRAX-114, PRAX-944 and PRAX-562, are those for which we have
initiated clinical activities. Our discovery-stage programs are those which are
at an earlier point in the development process. The following table reflects our
research and development expenses, including direct program-specific expenses
summarized by major program, discovery-stage program costs and indirect or
shared operating costs recognized as research and development expenses during
each period presented (in thousands):



                                                     Three Months Ended            Nine Months Ended
                                                       September 30,                 September 30,
                                                     2020           2019          2020           2019
PRAX-114                                          $     4,077      $ 1,241      $   9,137      $  6,122
PRAX-944                                                1,707          862          3,284         3,641
PRAX-562                                                  885          873          2,527         3,132
Discovery-stage programs                                2,154        4,294          4,050         5,024
Personnel-related (including stock-based
compensation)                                           3,098        1,405          7,443         3,946
Other indirect research and development
expenses                                                  865          671  

2,263 1,993



Total research and development expenses           $    12,786      $ 9,346

$ 28,704 $ 23,858





Research and development activities are central to our business model. Product
candidates in later stages of clinical development generally have higher
development costs than those in earlier stages of clinical development,
primarily due to the increased size and duration of later-stage clinical trials.
We expect that our research and development expenses will continue to increase
in the foreseeable future as we advance our product candidates through the
development phase, and as we continue to discover and develop additional product
candidates, build manufacturing capabilities and expand into additional
therapeutic areas.

At this time, we cannot reasonably estimate or know the nature, timing and
estimated costs of the efforts that will be necessary to complete the
development of, and obtain regulatory approval for, any of our product
candidates. We are also unable to predict when, if ever, material net cash
inflows will commence from sales or licensing of our product candidates. This is
due to the numerous risks and uncertainties associated with drug development,
including the uncertainty of:



• our ability to add and retain key research and development personnel;

• the timing and progress of preclinical and clinical development activities;

• the number and scope of preclinical and clinical programs we decide to


          pursue;




     •    our ability to successfully complete clinical trials with safety,

tolerability and efficacy profiles that are satisfactory to the U.S. Food

and Drug Administration, or FDA, or any comparable foreign regulatory


          authority;




     •    our ability to successfully develop, obtain regulatory approval for, and
          then successfully commercialize, our product candidates;




  •   our successful enrollment in and completion of clinical trials;




     •    the costs associated with the development of any additional product

candidates we identify in-house or acquire through collaborations;

• our ability to discover, develop and utilize biomarkers to demonstrate


          target engagement, pathway engagement and the impact on disease
          progression of our product candidates;



• our ability to establish and maintain agreements with third-party

manufacturers for clinical supply for our clinical trials and commercial


          manufacturing, if our product candidates are approved;



• the terms and timing of any collaboration, license or other arrangement,

including the terms and timing of any milestone payments thereunder;






     •    our ability to obtain and maintain patent, trade secret and other
          intellectual property protection and regulatory exclusivity for our
          product candidates if and when approved;



• our receipt of marketing approvals from applicable regulatory authorities;






     •    our ability to commercialize products, if and when approved, whether
          alone or in collaboration with others; and




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• the continued acceptable safety profiles of the product candidates

following approval.




A change in any of these variables with respect to the development of any of our
product candidates would significantly change the costs, timing and viability
associated with the development of that product candidate. For example, if the
FDA or another regulatory authority were to delay our planned start of clinical
trials or require us to conduct clinical trials or other testing beyond those
that we currently expect, or if we experience significant delays in enrollment
in any of our planned clinical trials, we could be required to expend
significant additional financial resources and time to complete our clinical
development activities. We may never obtain regulatory approval for any of our
product candidates. Drug commercialization will take several years and millions
of dollars in development costs.

General and Administrative Expense



General and administrative expenses consist primarily of personnel-related
costs, including salaries, benefits and stock-based compensation, for personnel
in our executive, finance, legal, business development and administrative
functions. General and administrative expenses also include legal fees relating
to corporate matters; professional fees for accounting, auditing, tax and
administrative consulting services; insurance costs; administrative travel
expenses; and facility-related expenses, which include direct depreciation costs
and allocated expenses for office rent and other operating costs. These costs
relate to the operation of the business, unrelated to the research and
development function, or any individual program. Costs to secure and defend our
intellectual property, or IP, are expensed as incurred and are classified as
general and administrative expenses.

We anticipate that our general and administrative expenses will increase in the
future as we increase our headcount to support the expected growth in our
research and development activities and the potential commercialization of our
product candidates. We also expect to incur increased expenses associated with
being a public company, including increased costs of accounting, audit, legal,
regulatory and tax-related services associated with maintaining compliance with
exchange listing and SEC requirements, director and officer insurance costs and
investor and public relations costs. We also expect to incur additional
IP-related expenses as we file patent applications to protect innovations
arising from our research and development activities.

Other Income

Interest Income

Interest income consists of interest earned on our cash and cash equivalents.

Income Taxes



Since our inception, we have not recorded any U.S. federal or state income tax
benefits for the net losses we have incurred in each year or for our earned
research and development tax credits, due to our uncertainty of realizing a
benefit from those items. Income taxes are determined at the applicable tax
rates adjusted for non-deductible expenses, research and development tax credits
and other permanent differences. Our income tax provision may be significantly
affected by changes to our estimates. The income tax benefit recognized for the
nine months ended September 30, 2020 related to income tax associated with our
operations in Australia.



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Results of Operations

Comparison of the Three Months Ended September 30, 2020 and 2019

The following table summarizes our consolidated statements of operations for each period presented (in thousands):





                                           Three Months Ended
                                             September 30,             Change
                                          2020           2019
           Operating expenses:
           Research and development     $  12,786      $   9,346      $  3,440
           General and administrative       3,431          1,308         2,123

           Total operating expenses        16,217         10,654         5,563

           Loss from operations           (16,217 )      (10,654 )      (5,563 )
           Other income:
           Interest income                      1             48           (47 )

           Total other income                   1             48           (47 )

           Net loss                     $ (16,216 )    $ (10,606 )    $ (5,610 )

Research and Development Expense

The following table summarizes our research and development expenses for each period presented, along with the changes in those items (in thousands):





                                                             Three Months Ended
                                                               September 30,             Change
                                                             2020           2019
PRAX-114                                                  $     4,077      $ 1,241      $  2,836
PRAX-944                                                        1,707          862           845
PRAX-562                                                          885          873            12
Discovery-stage programs                                        2,154        4,294        (2,140 )
Personnel-related (including stock-based compensation)          3,098        1,405         1,693
Other indirect research and development expenses                  865          671           194

Total research and development expenses                   $    12,786

$ 9,346 $ 3,440

Research and development expenses increased approximately $3.4 million from $9.3 million for the three months ended September 30, 2019 to $12.8 million for the three months ended September 30, 2020. The increase in research and development expenses was primarily attributable to the following:

$2.8 million increase in expense related to our PRAX-114 program, driven

by a $2.4 million increase in clinical-related spend and a $0.4 million


          increase in manufacturing spend both related to our ongoing Phase 2a
          clinical trial for this program;



$1.7 million increase in personnel-related costs due to increased headcount;

$0.8 million increase in expense related to our PRAX-944 program, driven

primarily by a $0.9 million increase in clinical-related spend for our


          ongoing Phase 2a clinical trial;



$0.2 million increase in other indirect research and development

expenses, primarily driven by an increase in facility, office, software

and other overhead costs due to increased research and development


          headcount; and




     •    $2.1 million offsetting decrease in expense related to our

discovery-stage programs, primarily driven by a $2.0 million decrease in


          research and development spend for discovery program assets acquired in
          the prior year.




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General and Administrative Expense



General and administrative expenses increased $2.1 million from $1.3 million for
the three months ended September 30, 2019 to $3.4 million for the three months
ended September 30, 2020. The increase in general and administrative expenses
was primarily attributable to the following:



$1.1 million increase in professional fees including legal and consulting

services, driven by a $0.5 million increase in accounting costs as we

prepared for our IPO, a $0.4 million increase in legal fees, primarily

related to intellectual property filings as we expand our research and


          development activities, and a $0.2 million increase in corporate
          development-related work; and



$1.0 million increase in personnel-related costs driven by increased


          headcount.


Other Income

Other income for the three months ended September 30, 2020 and 2019, comprised of interest income on our cash and cash equivalents, was not material.

Comparison of the Nine Months Ended September 30, 2020 and 2019

The following table summarizes our consolidated statements of operations for each period presented (in thousands):





                                                Nine Months Ended
                                                  September 30,             Change
                                               2020           2019
     Operating expenses:
     Research and development                $  28,704      $  23,858      $  4,846

     General and administrative                  7,552          4,437      

3,115


     Total operating expenses                   36,256         28,295      

  7,961

     Loss from operations                      (36,256 )      (28,295 )      (7,961 )
     Other income:
     Interest income                               134            171           (37 )

     Total other income                            134            171           (37 )

Loss before benefit from income taxes (36,122 ) (28,124 )

(7,998 )


     Benefit from income taxes                      (8 )           -       

     (8 )

     Net loss                                $ (36,114 )    $ (28,124 )    $ (7,990 )

Research and Development Expense

The following table summarizes our research and development expenses for each period presented, along with the changes in those items (in thousands):





                                                             Nine Months Ended
                                                               September 30,           Change
                                                            2020           2019
PRAX-114                                                  $   9,137      $  6,122      $ 3,015
PRAX-944                                                      3,284         3,641         (357 )
PRAX-562                                                      2,527         3,132         (605 )
Discovery-stage programs                                      4,050         5,024         (974 )
Personnel-related (including stock-based compensation)        7,443         3,946        3,497
Other indirect research and development expenses              2,263         

1,993 270



Total research and development expenses                   $  28,704      $ 23,858      $ 4,846





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Research and development expenses increased $4.8 million from $23.9 million for
the nine months ended September 30, 2019, to $28.7 million for the nine months
ended September 30, 2020. The increase in research and development expenses was
primarily attributable to the following:



  •   $3.5 million increase in personnel-related costs due to increased headcount;




     •    $3.0 million increase expense related to our PRAX-114 program, driven

primarily by a $3.6 million increase in clinical-related spend for our

ongoing Phase 2a clinical trial for this program, partially offset by a

$0.5 million decrease related to pre-clinicalexpenses incurred during the


          nine months ended September 30, 2019;



$0.3 million increase in other indirect research and development

expenses, primarily driven by an increase in facility, office, software

and other overhead costs due to increased research and development


          headcount;




     •    $1.0 million offsetting decrease in discovery-stage program expense,

driven by a $0.7 million decrease in expense for discovery program assets

acquired in the prior year and a $0.3 million decrease in spend for our


          other discovery-stage programs;



$0.6 million offsetting decrease in our PRAX-562 program, driven by a

$1.7 million decrease related to pre-clinical expenses incurred during

the nine months ended September 30, 2019 to identify our clinical

candidate, offset by a $0.7 million increase in clinical-related spend

and a $0.4 million manufacturing spend related to our ongoing Phase 1


          clinical trial for this program; and




     •    $0.4 million offsetting decrease in expense related to our

PRAX-944program, driven by a $1.1 million decrease for pre-clinical work

performed during the nine months ended September 30, 2019 to prepare for

our Phase 2a clinical trial and a $0.6 million decrease related to a drug

product manufacturing campaign that was executed during the nine months


          ended September 30, 2019, offset by a $1.3 million increase in
          clinical-related spend for our ongoing Phase 2 clinical trial for this
          program.

General and Administrative Expense



General and administrative expenses increased approximately $3.1 million from
$4.4 million for the nine months ended September 30, 2019 to $7.6 million for
the nine months ended September 30, 2020. The increase in general and
administrative expenses was primarily attributable to the following:



$1.6 million increase in professional fees including legal and consulting

services, driven by a $1.2 million increase in consulting costs,

including $0.8 million of increased accounting costs as we prepared for


          the IPO and $0.3 million of increased corporate development spend to
          support commercial assessments of our clinical-stage programs, and a

$0.4 million increase in legal fees primarily related to intellectual

property filings as we expand our research and development activities;

$1.4 million increase in personnel-related costs driven by increased


          headcount; and




     •    $0.1 million increase in facilities, office and other general and
          administrative expenses to support the increase in our operating
          activities.


Total Other Income

Total other income for the nine months ended September 30, 2020 and 2019 was
$0.1 million and $0.2 million, respectively, comprised of interest income on our
cash and cash equivalents.

Liquidity and Capital Resources

Sources of Liquidity



Since our inception, we have incurred significant losses in each period. We have
not yet commercialized any of our product candidates, which are in various
phases of preclinical and clinical development, and we do not expect to generate
revenue from sales of any products for several years, if at all. To date, we
have financed our operations primarily with proceeds from sales of our
redeemable convertible preferred stock, the issuance of convertible debt and the
closing of our IPO.

Prior to our IPO, we raised an aggregate of $206.7 million in proceeds from the
sale of our redeemable convertible preferred stock and $4.0 million in proceeds
from the issuance of convertible promissory notes. As of September 30, 2020, we
had cash and cash equivalents of $114.8 million. On October 20, 2020, we
completed our IPO for approximately $199.9 million in net proceeds after
deducting underwriting discounts and commissions and offering expenses payable
by us.



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Historical Cash Flows

The following table provides information regarding our cash flows for each period presented (in thousands):





                                                                 Nine Months Ended
                                                                   September 30,
                                                               2020             2019
Net cash provided by (used in):
Operating activities                                         $ (32,395 )      $ (23,466 )
Investing activities                                                -              (103 )
Financing activities                                           102,352            9,939

Net increase (decrease) in cash, cash equivalents and
restricted cash                                              $  69,957        $ (13,630 )



Operating Activities

Our cash flows from operating activities are greatly influenced by our use of
cash for operating expenses and working capital requirements to support the
business. We have historically experienced negative cash flows from operating
activities as we have invested in developing our portfolio, drug discovery
efforts and related infrastructure. The cash used in operating activities
resulted primarily from our net losses adjusted for non-cash charges and changes
in components of working capital, which are primarily the result of increased
expenses and timing of vendor payments.

During the nine months ended September 30, 2020, net cash used in operating
activities of $32.4 million was primarily due to our $36.1 million net loss,
partially offset by $1.9 million of non-cash charges and $1.8 million in changes
in operating assets and liabilities.

During the nine months ended September 30, 2019, net cash used in operating
activities of $23.5 million was primarily due to our $28.1 million net loss,
partially offset by $1.0 million of non-cash charges and $3.6 million in changes
in operating assets and liabilities.

Investing Activities



There were no cash flows from investing activities during the nine months ended
September 30, 2020. During the nine months ended September 30, 2019, net cash
used in investing activities related to the purchase of property and equipment.

Financing Activities



During the nine months ended September 30, 2020, net cash provided by financing
activities of $102.4 million consisted of net proceeds from the issuance of our
Series C redeemable convertible preferred stock and Series C-1 redeemable
convertible preferred stock and exercise of stock options, offset by the cash
paid for the repurchase of our Series C redeemable convertible preferred stock
and cash paid for initial public offering costs incurred.

During the nine months ended September 30, 2019, net cash provided by financing
activities of $9.9 million consisted of net proceeds from the issuance of our
Series B-1 redeemable convertible preferred stock.

Plan of Operation and Future Funding Requirements



We expect our expenses to increase substantially in connection with our ongoing
research and development activities, particularly as we advance the preclinical
activities and clinical trials of our product candidates. In addition, we expect
to incur additional costs associated with operating as a public company. As a
result, we expect to incur substantial operating losses and negative operating
cash flows for the foreseeable future. We anticipate that our expenses will
increase substantially if and as we:



• advance the clinical development of our PRAX-114, PRAX-944 and PRAX-562


          product candidates;




  •   advance the development of any additional product candidates;



• conduct research and continue preclinical development of potential


          product candidates;




  •   make strategic investments in manufacturing capabilities;




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     •    maintain our current intellectual property portfolio and
          opportunistically acquire complementary intellectual property;




  •   seek to obtain regulatory approvals for our product candidates;



• potentially establish a sales, marketing and distribution infrastructure

and scale-up manufacturing capabilities to commercialize any products for


          which we may obtain regulatory approval;




     •    add clinical, scientific, operational, financial and management
          information systems and personnel, including personnel to support our

product development and potential future commercialization efforts and to


          support our transition to a public company; and




     •    experience any delays or encounter any issues with any of the above,
          including but not limited to failed studies, complex results, safety
          issues or other regulatory challenges.


We are unable to estimate the exact amount of our working capital requirements,
but based on our current operating plan, we believe that our existing cash and
cash equivalents, combined with the cash proceeds from our IPO, will enable us
to fund our operating expenses and capital expenditure requirements into the
fourth quarter of 2022. However, we have based this estimate on assumptions that
may prove to be wrong and we could exhaust our capital resources sooner than we
expect.

Because of the numerous risks and uncertainties associated with product
development, and because the extent to which we may enter into collaborations
with third parties for the development of our product candidates is unknown, we
may incorrectly estimate the timing and amounts of increased capital outlays and
operating expenses associated with completing the research and development of
our product candidates. Our funding requirements and timing and amount of our
operating expenditures will depend on many factors, including, but not limited
to:



     •    the scope, progress, results and costs of preclinical studies and
          clinical trials for our programs and product candidates;




     •    the number and characteristics of programs and technologies that we
          develop or may in-license;




     •    the costs and timing of future commercialization activities, including

manufacturing, marketing, sales and distribution, for any of our product


          candidates for which we receive marketing approval;




     •    the costs necessary to obtain regulatory approvals, if any, for products

in the United States and other jurisdictions, and the costs of

post-marketing studies that could be required by regulatory authorities


          in jurisdictions where approval is obtained;




     •    the costs and timing of preparing, filing and prosecuting patent
          applications, maintaining and enforcing our intellectual property rights
          and defending any intellectual property-related claims;



• the continuation of our existing licensing arrangements and entry into


          new collaborations and licensing arrangements;




  •   the costs we incur in maintaining business operations;




  •   the costs associated with being a public company;




     •    the revenue, if any, received from commercial sales of any product
          candidates for which we receive marketing approval;




  •   the effect of competing technological and market developments;



• the impact of any business interruptions to our operations or to those of

our manufacturers, suppliers or other vendors resulting from the COVID-19


          pandemic or similar public health crisis; and



• the extent to which we acquire or invest in businesses, products and


          technologies, including entering into licensing or collaboration
          arrangements for product candidates, although we currently have no
          commitments or agreements to complete any such acquisitions or
          investments in businesses.


Identifying potential product candidates and conducting preclinical testing and
clinical trials is a time consuming, expensive and uncertain process that takes
years to complete, and we may never generate the necessary data or results
required to obtain marketing approval and achieve product sales. In addition,
our product candidates, if approved, may not achieve commercial success. Our
commercial revenues, if any, will be derived from sales of products that we do
not expect to be commercially available for many years, if ever. Accordingly, we
will need to obtain substantial additional funds to achieve our business
objectives.



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Adequate additional funds may not be available to us on acceptable terms, or at
all. We do not currently have any committed external source of funds. Market
volatility resulting from the COVID-19 pandemic or other factors could also
adversely impact our ability to access capital as and when needed. To the extent
that we raise additional capital through the sale of equity or convertible debt
securities, the ownership interest of our existing stockholders will be diluted,
and the terms of these securities may include liquidation or other preferences
that adversely affect the rights of holders of our common stock. Additional debt
financing and preferred equity financing, if available, may involve agreements
that include covenants limiting or restricting our ability to take specific
actions, such as incurring additional debt, making capital expenditures or
declaring dividends and may require the issuance of warrants, which could
potentially result in dilution to the holders of our common stock.

If we raise additional funds through collaborations, strategic alliances or
licensing arrangements with third parties, we may have to relinquish valuable
rights to our technologies, future revenue streams, research programs or product
candidates or grant licenses on terms that may not be favorable to us. If we are
unable to raise additional funds through equity or debt financings when needed,
we may be required to delay, limit or terminate our product development programs
or any future commercialization efforts or grant rights to develop and market
product candidates to third parties that we would otherwise prefer to develop
and market ourselves.

Contractual Obligations

There have been no changes to our contractual obligations from those described
under the heading "Management's Discussion and Analysis of Financial Condition
and Results of Operations - Contractual Obligations and Commitments" in our
final prospectus filed with the SEC pursuant to Rule 424(b)(4) on October 16,
2020.

Off-Balance Sheet Arrangements



We did not have during the periods presented, and we do not currently have, any
off-balance sheet arrangements, as defined in the rules and regulations of the
SEC.

Critical Accounting Policies and Significant Judgments and Estimates



Our management's discussion and analysis of our financial condition and results
of operations is based on our condensed consolidated financial statements, which
have been prepared in accordance with generally accepted accounting principles
in the United States, or GAAP. The preparation of these condensed consolidated
financial statements requires us to make estimates and assumptions that affect
the reported amounts of assets and liabilities and the disclosure of contingent
assets and liabilities at the date of the condensed consolidated financial
statements, as well as the reported expenses incurred during the reporting
periods. Our estimates are based on our historical experience and on various
other factors that we believe are reasonable under the circumstances, the
results of which form the basis for making judgments about the carrying value of
assets and liabilities that are not readily apparent from other sources. Actual
results may differ from these estimates under different assumptions or
conditions.

There have been no changes to our critical accounting policies from those
described under the heading "Management's Discussion and Analysis of Financial
Condition and Results of Operations - Critical Accounting Policies and
Significant Judgments and Estimates" included in our final prospectus filed with
the SEC pursuant to Rule 424(b)(4) on October 16, 2020.

JOBS Act and Emerging Growth Company and Smaller Reporting Company Status



In April 2012, the JOBS Act was enacted. As an emerging growth company, or EGC,
under the JOBS Act, we may delay the adoption of certain accounting standards
until such time as those standards apply to private companies. Other exemptions
and reduced reporting requirements under the JOBS Act for EGCs include
presentation of only two years of audited financial statements in a registration
statement for an initial public offering, an exemption from the requirement to
provide an auditor's report on internal controls over financial reporting
pursuant to Section 404(b) of the Sarbanes-Oxley Act of 2002, an exemption from
any requirement that may be adopted by the Public Company Accounting Oversight
Board regarding mandatory audit firm rotation and less extensive disclosure
about our executive compensation arrangements. Additionally, the JOBS Act
provides that an EGC can take advantage of an extended transition period for
complying with new or revised accounting standards. This allows an EGC to delay
the adoption of certain accounting standards until those standards would
otherwise apply to private companies. We have elected to avail ourselves of the
extended transition period and, therefore, while we are an EGC we will not be
subject to new or revised accounting standards at the same time that they become
applicable to other public companies that are not EGCs, unless we choose to
early adopt a new or revised accounting standard.

We will remain classified as an EGC until the earlier of: (i) the last day of
our first fiscal year in which we have total annual gross revenues of
$1.07 billion or more, (ii) the last day of the fiscal year following the fifth
anniversary of completion of our IPO, (iii) the date on which we have issued
more than $1.0 billion of non-convertible debt instruments during the previous
three fiscal years or (iv) the date on which we are deemed a "large accelerated
filer" under the rules of the SEC.





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We are also a "smaller reporting company" as defined in the Securities Exchange
Act of 1934, as amended. We may continue to be a smaller reporting company even
after we are no longer an emerging growth company. We may take advantage of
certain of the scaled disclosures available to smaller reporting companies until
the fiscal year following the determination that our voting and non-voting
common stock held by non-affiliates is more than $250 million measured on the
last business day of our second fiscal quarter, or our annual revenues are less
than $100 million during the most recently completed fiscal year and our voting
and non-voting common stock held by non-affiliates is more than $700 million
measured on the last business day of our second fiscal quarter.

Recently Issued Accounting Pronouncements



We have reviewed all recently issued standards and have determined that, other
than as disclosed in Note 2 to our condensed consolidated financial statements
appearing elsewhere in this Quarterly Report on Form 10-Q, such standards will
not have a material impact on our condensed consolidated financial statements or
do not otherwise apply to our current operations.

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