The following discussion and analysis should be read in conjunction with our
consolidated financial statements and the related notes included in this Annual
Report on Form 10-K. This discussion contains forward-looking statements that
involve risks and uncertainties. Our actual results could differ materially from
those anticipated in the forward-looking statements as a result of various
factors including the risks we discuss in Item 1A. Risk Factors and elsewhere in
this Annual Report on Form 10-K.
Overview
Our Business
We are a biopharmaceutical company, with a primary strategy comprised of
acquiring, developing, and commercializing novel and targeted oncology
therapies. Our in-house development organization includes clinical development,
regulatory, quality and data management. We continue to build out our commercial
and marketing capabilities to prepare for the launch of ROLONTIS.
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We have three drugs in development:
•ROLONTIS, a novel long-acting G-CSF for chemotherapy-induced neutropenia which
is under review by the FDA. On October 26, 2020, the Company announced that the
FDA had deferred action on the BLA for ROLONTIS due to the inability to conduct
an inspection of our third-party manufacturing facility in South Korea as a
result of COVID-19 related travel restrictions. In March 2021, the FDA scheduled
the pre-approval inspection of the Hanmi manufacturing facility for May 2021;
•Poziotinib, a novel irreversible tyrosine kinase inhibitor under investigation
for NSCLC tumors with various mutations. A New Drug Application ("NDA") based on
data from Cohort 2 of ZENITH20, which evaluated previously treated patients with
NSCLC with HER2 exon 20 insertion mutation is expected to be filed with the FDA
in 2021; and
•Anti-CD20-IFN?, an antibody-interferon fusion molecule directed against CD20
that is in Phase 1 development for treating relapsed or refractory NHL patients.
Our business strategy is the development of our late-stage assets through
commercialization and the sourcing of additional assets that are synergistic
with our existing portfolio (through purchase acquisitions, in-licensing
transactions, or co-development and marketing arrangements).
See Item 1. Business, for our discussion of:
•Company Overview
•Cancer Background and Market Size
•Product Portfolio
•Manufacturing
•Competition
•Research and Development
Recent Highlights of Our Business, Product Development Initiatives, and
Regulatory Approvals
During the year ended December 31, 2020, we continued our strategic shift in our
business following the completion of the sale of our legacy Commercial Product
Portfolio in March 2019. We also continued to make meaningful progress in the
advancement of our product pipeline, as summarized below:
ROLONTIS, a novel long-acting G-CSF:

We submitted our updated BLA for ROLONTIS to the FDA on October 24, 2019, which
was accepted for review by the FDA on December 20, 2019. Our BLA is supported by
data from two similarly designed Phase 3 clinical trials, ADVANCE and RECOVER,
which evaluated the safety and efficacy of ROLONTIS in 643 early-stage breast
cancer patients for the treatment of neutropenia due to myelosuppressive
chemotherapy. On October 26, 2020, we announced that the FDA PDUFA target action
date set for October 24, 2020 was deferred pending inspection of the Hanmi
manufacturing facility in Korea due to COVID-19 related travel restrictions. In
March 2021, the FDA scheduled the pre-approval inspection of the Hanmi
manufacturing facility for May 2021.
A company sponsored clinical trial has been initiated to evaluate the
administration of ROLONTIS on the same day as chemotherapy. This Phase 1
clinical trial is a randomized, open label, actively controlled study to
evaluate the same-day dosing of eflapegrastim on duration of neutropenia when
administered at varying intervals following docetaxel and cyclophosphamide (TC)
chemotherapy in patients with early-stage breast cancer. On March 4, 2021, at
the virtual 38th Annual Miami Breast Cancer Conference®, the company presented
positive early data showing rapid absolute neutrophil count (ANC) recovery in
the first three patients dosed in the 30-minute arm of the same-day dosing. This
arm met the prespecified interim safety evaluation criteria and therefore
supports the expansion of this arm to 15 patients. The study design included an
interim safety evaluation that was conducted once the first three patients in
each arm (30 minutes, 3 hours, or 5 hours) completed Cycle 1. Based on this
review, the 30-minute arm will expand to a total of 15 patients, while the 3-
and 5-hour dosing arms have been discontinued. In the 30-minute dosing arm, ANC
recovery was more rapid compared to the 3- and 5-hour arms. The overall safety
profile for the 30-minute arm was similar to what has been seen previously in
large randomized studies with GCSF given 24 hours after chemotherapy.
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Poziotinib, an irreversible tyrosine kinase inhibitor targeting EGFR and HER2
mutations:
In October 2017, we announced the start of our pivotal ZENITH20 Phase 2 global
clinical trial with active sites in the U.S., Canada and Europe. The ZENITH20
trial consists of seven cohorts of NSCLC patients. Cohorts 1 (EGFR) and 2 (HER2)
have completed enrollment of previously treated NSCLC patients with exon 20
mutations. Cohort 3 (EGFR) and 4 (HER2) are currently enrolling first-line NSCLC
patients with exon 20 mutations. Cohorts 1- 4 are each independently powered for
a pre-specified statistical hypothesis and the primary endpoint is ORR. Cohort 5
includes previously treated or treatment-naïve NSCLC patients with EGFR or HER2
exon 20 insertion mutations. Cohort 6 includes NSCLC patients with classical
EGFR mutations who progressed while on treatment with first-line osimertinib and
developed an additional EGFR mutation. Cohort 7 includes NSCLC patients with a
variety of less common mutations in EGFR or HER2 exons 18-21 or the
extracellular or transmembrane domains.
On December 26, 2019, we announced that the pre-specified primary endpoint was
not met in Cohort 1 of the ZENITH20 trial evaluating poziotinib in previously
treated NSCLC patients with EGFR exon 20 insertion mutations. Cohort 1 enrolled
a total of 115 patients who received 16 mg/day of poziotinib. The
intent-to-treat analysis showed that 17 patients had a response (by RECIST) and
62 patients had stable disease for a 68.7% DCR. The confirmed ORR was 14.8% (95%
CI 8.9%-22.6%). The median duration of response was 7.4 months and the
progression free survival was 4.2 months. The safety profile was in-line with
other second-generation EGFR tyrosine kinase inhibitors.
On July 27, 2020, we announced that we met the pre-specified primary endpoint
for Cohort 2 in the ZENITH20 trial evaluating previously treated NSCLC patients
with HER2 exon 20 insertion mutations. Cohort 2 enrolled a total of 90 patients
who received an oral, once daily dose of 16 mg of poziotinib. All the patients
had failed at least one line of prior systemic therapy with 60 patients (67%)
having failed two or more prior therapies, including chemotherapy and
immunotherapy. All responses were read independently and confirmed by a central
imaging laboratory using RECIST criteria. The intent-to-treat analysis
demonstrated a confirmed ORR of 27.8% (95% CI of 18.9%-38.2%). Based on the
pre-specified statistical hypothesis for the primary endpoint, the observed
lower bound of 18.9% exceeded the pre-specified lower bound of 17% in this
heavily pre-treated population. The safety profile was in-line with the type of
adverse events seen with other second-generation EGFR tyrosine kinase
inhibitors. These results were presented at the ESMO Virtual Congress 2020
Science Weekend held in September 2020.
In March 2021, we announced that the FDA granted Fast Track designation for
Poziotinib based on data from Cohort 2 of ZENITH20, which evaluated previously
treated patients with NSCLC with HER2 exon 20 insertion mutations. In December
2020, we reported that its pre-specified primary endpoint in Cohort 3 evaluating
poziotinib in first-line NSCLC patients with EGFR exon 20 insertion mutations
was not met. We additionally reported that preliminary data from patients
receiving 8 mg of poziotinib twice daily demonstrated meaningful improvement in
tolerability as measured by adverse events and dosing interruptions.
Cohort 3 of the ZENITH20 clinical trial enrolled a total of 79 patients who
received an oral once daily dose of 16 mg of poziotinib. The median time of
follow up of all patients was 9.2 months with 12 ongoing patients still on
treatment. The intent-to-treat analysis showed that 22 patients had a partial
response (by RECIST) and 68 patients had stable disease for an 86.1% DCR. 91% of
patients experienced tumor reduction with a median reduction of 25.5%. The
confirmed ORR was 27.8% (95% CI 18.4-39.1%). Based on the pre-specified
statistical hypothesis for the primary endpoint, the observed lower bound of
18.4% did not meet the pre-specified lower bound of >20%. The median duration of
response was 6.5 months and the median progression free survival was 7.2 months.
The safety profile was similar with the type of adverse events observed with
other second-generation EGFR tyrosine kinase inhibitors. Grade 3 treatment
related rash was 33% and diarrhea was 23%. 94% of patients had drug
interruptions with 6 patients (8%) permanently discontinuing due to adverse
events.
Additionally, preliminary data from ZENITH20 Cohort 5 for patients with exon 20
insertion mutations receiving 8 mg twice daily dosing shows improved
tolerability versus patients who received the 16 mg once daily dose. The data
from this cohort includes patients with both EGFR and HER2 mutations. In Cycle
1, the incidence of Grade 3 or higher treatment related adverse events (rash,
diarrhea and stomatitis) decreased by 32% for patients receiving the 8 mg twice
daily dose. In addition, dose interruptions were reduced by 38% for the 8 mg
twice daily dose versus the 16 mg once daily dose. No new types of adverse
events were observed with the twice daily dosing regimen. The preliminary
findings of BID dosing could benefit the entire poziotinib program including
both EGFR and HER2 exon 20 insertion mutations, and Cohorts 4-7 of the ZENITH20
trial continue to enroll.
Anti-CD20-IFN?:
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In April 2019, we executed a license agreement with ImmunGene for an
antibody-interferon fusion molecule directed against CD20 (Anti-CD20-IFN?) that
is in Phase 1 development for treating relapsed or refractory NHL, This
technology is designed to selectively target NHL with therapeutic doses of IFNa,
while minimizing systemic toxicity. Under the terms of this agreement, we
received the exclusive worldwide rights to commercialize this drug for any
indication, and are financially responsible for the clinical and regulatory
development programs.
Components of Operating Results
The below summarizes the nature of our revenue and operating expense line items
within our Consolidated Statements of Operations:
Revenue
In March 2019, we completed the Commercial Product Portfolio Transaction. In
accordance with applicable GAAP, the revenue-deriving activities of our sold
commercial operation are separately classified as "discontinued" for all periods
presented within the accompanying Consolidated Statements of Operations.
The majority of our revenue was derived from sales of our drug products to large
pharmaceutical wholesalers and distributors, which we recognized upon title
transfer (which is typically at time of delivery), provided our other revenue
recognition criteria have been met. We expect that this revenue source and
recognition will persist upon the potential FDA approval of ROLONTIS and
poziotinib.
To a lesser extent we also derived revenue from (i) upfront license fees, (ii)
milestone receipts from our licensees' sales or regulatory achievements, and
royalties from out-licensing our licensees' sales in applicable territories, and
(iii) service revenue from third-parties under certain arrangements for our
research and development activities, sales and marketing activities, clinical
trial management, and supply chain services conducted for the benefit of third
parties. We expect that this revenue source and recognition will persist from
our current and future out-license arrangements.
Cost of Sales (excluding amortization of intangible assets)
Cost of sales includes production and packaging materials, contract manufacturer
fees, allocated personnel costs (including stock-based compensation expense),
shipping expenses, and royalty fees.
Operating Expenses
Selling, General and Administrative
Selling, general and administrative expenses primarily consist of compensation
(including stock-based compensation) and benefits for our sales force and
personnel that support our sales and marketing operations, and our general
operations such as information technology, executive management, financial
accounting, and human resources. It also includes costs attributable to
marketing our products to our customers and prospective customers, patent and
legal fees, financial statement audit fees, insurance coverage fees, bad debt
expense, personnel recruiting fees, and other professional services.
Research and Development
Our research and development activities primarily relate to the clinical
development of new drugs and costs associated with at-risk manufacture of drug
products prior to FDA approval .
These clinical development expenses specifically consist of (i) compensation
(including stock-based compensation) and benefits for research and development
and clinical and regulatory personnel, (ii) materials and supplies for each
project, (iii) consultants, and (iv) associated regulatory and clinical site
expenses.
Our research and development manufacture expenses are recognized in the period
which the activity occurs and includes (i) our technology transfer costs for
production, (ii) FDA qualification costs of our contract manufacturers' sites,
and (iii) material and service costs associated with our inventory build in
anticipation of FDA approval and subsequent commercial launch.
Results of Operations
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Comparison of the Years Ended December 31, 2020 and 2019


                                                                  Year Ended December 31,
                                                                  2020                 2019              $ Change
                                                                      ($ in thousands)
Revenues                                                    $           -          $        -          $       -
Operating costs and expenses:

Selling, general and administrative                                60,357              61,373             (1,016)
Research and development                                          109,377              79,325             30,052

Total operating costs and expenses                                169,734             140,698             29,036
Loss from continuing operations before other income
(expense) and income taxes                                       (169,734)           (140,698)           (29,036)
Other income (expense):                                                                                        -
Interest income, net                                                1,342               4,996             (3,654)
Other expense, net                                                 (2,940)             (8,892)             5,952
Total other expense                                                (1,598)             (3,896)             2,298
Loss from continuing operations before income taxes              (171,332)           (144,594)           (26,738)
Benefit for income taxes from continuing operations                    60               9,208             (9,148)
Loss from continuing operations                                  (171,272)           (135,386)           (35,886)
Income from discontinued operations, net of income taxes           10,404              22,697            (12,293)
Net loss                                                    $    (160,868)         $ (112,689)         $ (48,179)



Operating Expenses
                                                           Year Ended December 31,
                                                           2020                     2019             $ Change               % Change
                                                               ($ in millions)
Operating expenses:

Selling, general and administrative                       60.4                       61.4                (1.0)                    (1.6) %
Research and development                                 109.4                       79.3                30.1                     38.0  %

Total operating costs and expenses                $      169.7                  $   140.7          $     29.0                     20.6  %


Selling, general and administrative expenses decreased by $1.0 million in the
current period, primarily related to (i) $1.5 million of non-recurring employee
severance expense related to the Commercial Product Portfolio Transaction and
(ii) a decrease in overall travel of $2 million as a result of COVID-19, which
has been ongoing since the first quarter of 2020. These decreases were partially
offset by $1.6 million of increased information technology, infrastructure and
systems-related expenses in preparation for our planned commercial launch of
ROLONTIS, and $0.8 million of increased legal and other general expenses.
Research and development expenses increased by $30.1 million in the current
period primarily related to (i) impairment and write-offs of $28.2 million
related to our ROLONTIS second source manufacturer, (ii) ROLONTIS manufacturing
and other development activities of $3.9 million, (iii) personnel-related
expenses of $3.6 million, and (iv) upfront payments of $0.8 million for other
research and development milestones. These increases are partially offset by (i)
poziotinib expenses of $3.9 million related to manufacturing activities and drug
substance purchases, (ii) $2.0 million of ROLONTIS expenses related to the
preparation and submission of our updated BLA in the prior year period, and
(iii) $0.6 million of expenses related to our in-license for Anti-CD20-IFN?,
given upfront payments made in the prior year that did not reoccur.
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Total Other Expense

                             Year Ended December 31,
                                2020                 2019       $ Change       % Change
                                 ($ in millions)
Total other expense   $       (1.6)                $ (3.9)     $     2.3         59.0  %



Total other expense decreased by $2.3 million primarily due to $8.2 million of
increased market value of our equity holding in the current period versus the
prior period, offset by (i) $3.5 million of decreased interest income and
changes in value on certain investments, (ii) $1.3 million of lower realized
gains in the current period compared to the prior period from the sale of our
equity holdings, (iii) $0.7 million decrease of billable services rendered to
Acrotech as part of a transition services agreement that expired in May 2019,
and (iv) $0.4 million increase in loss on foreign currency exchange.
Income Taxes

                                                          Year Ended December 31,
                                                          2020                       2019             $ Change               % Change
                                                              ($ in millions)
Benefit for income taxes from continuing
operations                                    $         0.1                      $     9.2          $     (9.1)                   (98.9) %



In 2020 the Company early adopted ASU 2019-12, "Income Taxes (Topic 740):
Simplifying the Accounting for Income Taxes". Prior to the early adoption of ASU
2019-12, the intraperiod tax allocation guidance required that we allocate
income taxes between continuing operations and other categories of earnings. Due
to the required allocation in 2019, we recorded an income tax benefit of $9.2
million from continuing operations, income tax expense of $7.5 million within
income from discontinued operations, and income tax expense of $0.2 million
within other comprehensive income (loss) on the Consolidated Statements of
Comprehensive Loss for the year ended December 31, 2019.
Our net tax benefit for the year ended December 31, 2019 prior to the
application of the intraperiod allocation guidance was $1.5 million. This tax
benefit arose from the reversal of deferred tax liabilities recorded on our
Consolidated Balance Sheets as of December 31, 2018 that were associated with
indefinite-lived intangible assets that were sold as part of the Commercial
Product Portfolio Transaction. The intraperiod allocation is not applicable for
the year ended December 31, 2020 as a result of the early adoption of ASU
2019-12. Our $0.1 million tax benefit for the year ended December 31, 2020 is
primarily related to state income taxes.
Liquidity and Capital Resources
We believe that our $180.0 million in aggregate cash, cash equivalents, and
marketable securities as of December 31, 2020 is sufficient to fund our current
and planned operations for at least the next twelve months. We may, however,
require additional liquidity as we continue to execute our business strategy,
and in connection with opportunistic acquisitions or licensing arrangements. We
anticipate that to the extent that we require additional liquidity, it will be
funded through additional equity or debt financings, or out-licensing
arrangements. However, we cannot provide assurance that we will be able to
obtain this additional liquidity on terms favorable to us or our current
stockholders, if at all. Additionally, our liquidity and our ability to fund our
capital requirements are also dependent on our future financial performance
which is subject to various market and economic factors that are beyond our
control.
We have no off-balance sheet arrangements that provide financing, liquidity,
market or credit risk support, or involve derivatives. In addition, we have no
arrangements that may expose us to liability that are not expressly reflected in
the accompanying Consolidated Financial Statements and/or notes thereto.
Net Cash Used In Operating Activities
Net cash used in operating activities was $121.6 million for the year ended
December 31, 2020, as compared to $134.6 million for the year ended December 31,
2019. This decrease in net cash used in operating activities was primarily
related to
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improvements in working capital during the year ended December 31, 2020 as a
result of no longer being a commercial stage entity after the Commercial Product
Portfolio Transaction.
Net Cash Provided By Investing Activities
Net cash provided by investing activities was $18.1 million for the year ended
December 31, 2020, as compared to $32.0 million for the year ended December 31,
2019.
Cash provided by investing activities primarily relates to proceeds of $109.0
million from our investments and proceeds of $4.0 million from the sale of our
equity holdings. These cash receipts were partially offset by $89.4 million of
purchased investments and $5.5 million of equipment purchases.
Net Cash Provided By Financing Activities
Net cash provided by financing activities was $85.2 million for the year ended
December 31, 2020, as compared to $9.6 million for the year ended December 31,
2019.
Cash provided by financing activities during the year ended December 31, 2020
relates to $69.7 million of proceeds from our public offering, net of offering
expenses, $14.9 million of proceeds received from common shares sold pursuant to
an at-the-market-issuance sales agreement, and $0.7 million of proceeds from
employee shares purchased under our employee stock purchase plan.
Sale of Common Stock Under ATM Agreements
On April 5, 2019, we entered into a new collective at-market-issuance ("ATM")
sales agreement with Cantor Fitzgerald & Co., H.C. Wainwright & Co., LLC and B.
Riley FBR, Inc. (the "April 2019 ATM Agreement"), pursuant to which we may offer
and sell shares of our common stock by any method deemed to be an "at the
market" offering (the "ATM Offering"). From April 5, 2019 to March 2, 2020, the
ATM Offering was conducted pursuant to a sales agreement prospectus filed with
our automatic shelf registration statement on Form S-3ASR, filed with the SEC on
April 5, 2019, which registered an aggregate offering price of $150 million
under the April 2019 ATM Agreement. From May 8, 2020 to June 30, 2020, the ATM
Offering was conducted pursuant to a sales agreement prospectus (the "Initial
Sales Agreement Prospectus") filed with our shelf registration statement on Form
S-3, filed with the SEC on March 20, 2020, as amended by Pre-Effective Amendment
No. 1 thereto, and declared effective by the SEC on May 8, 2020 (the
"Registration Statement"), which registered an aggregate offering price of up to
$75 million under the April 2019 ATM Agreement. On July 29, 2020, we terminated
the Initial Sales Agreement Prospectus, but left the April 2019 ATM Agreement in
full force and effect. On November 6, 2020, we filed a new sales agreement
prospectus to the Registration Statement, which registered an aggregate offering
price of up to $60 million under the April 2019 ATM Agreement.
We sold and issued common shares under the April 2019 ATM Agreement as follows:
                                                                                                  Proceeds Received
                                                                                                   (Net of Broker
                                                                    No. of Common Shares        Commissions and Fees
            Description of Financing Transaction                           Issued                        )

Common shares issued pursuant to the April 2019 ATM Agreement during the year ended December 31, 2019

                             221,529           $           1,814

Common shares issued pursuant to the April 2019 ATM Agreement during the year ended December 31, 2020


3,950,398           $          14,902



Impact of COVID-19 Pandemic
On March 11, 2020, COVID-19 was declared a pandemic by the World Health
Organization. Concerns related to the spread of COVID-19 began to create global
business disruptions as well as disruptions in our operations. On October 26,
2020, we announced that the FDA had deferred action on the BLA for ROLONTIS due
to the inability to conduct an inspection of our third-party manufacturing
facility in South Korea as a result of COVID-19 related travel restrictions. In
March 2021, the FDA scheduled the pre-approval inspection of the Hanmi
manufacturing facility for May 2021 (See Item 1A: "Risk Factors" for additional
details).
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Proceeds From the Commercial Product Portfolio Transaction
In March 2019, we completed the sale of our Commercial Product Portfolio to
Acrotech. Upon the closing of the Commercial Product Portfolio Transaction, we
received $158.8 million in an upfront cash payment. We are also entitled to
receive up to an aggregate of $140 million upon Acrotech's achievement of
certain regulatory and sales-based milestones relating to the Commercial Product
Portfolio.
Critical Accounting Policies and Estimates
The preparation of financial statements in conformity with GAAP requires our
management to make informed estimates and assumptions that affect our reported
amounts of assets, liabilities, revenues, and expenses. These amounts may
materially differ from the amounts ultimately realized and reported due to the
inherent uncertainty of any estimate or assumption. On an on-going basis, our
management evaluates (as applicable) its most critical estimates and
assumptions, including those related to: (i) gross-to-net revenue adjustments;
(ii) the timing of revenue recognition; (iii) the collectability of customer
accounts; (iv) whether the cost of our inventories can be recovered; (v) the
realization of our tax assets and estimates of our tax liabilities; (vi) the
fair value of our investments; (vii) the valuation of our stock options and the
periodic expense recognition of stock-based compensation; and (viii) the
potential outcome of our ongoing or threatened litigation.
Our accounting policies and estimates that most significantly impact the
presented amounts within these Consolidated Financial Statements are further
described below:
Revenue Recognition
On March 1, 2019, we completed the Commercial Product Portfolio Transaction. In
accordance with applicable GAAP (ASC 205-20, Presentation of Financial
Statements), the revenue-deriving activities of our sold commercial operation
are separately classified as "discontinued" for all periods presented within the
accompanying Consolidated Statements of Operations.
Required Elements of Our Revenue Recognition: Revenue from our (a) product
sales, (b) out-license arrangements, and (c) service arrangements is recognized
under Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts
with Customers ("Topic 606") in a manner that reasonably reflects the delivery
of our goods and/or services to customers in return for expected consideration
and includes the following elements:
(1)we ensure that we have an executed contract(s) with our customer that we
believe is legally enforceable;
(2)we identify the "performance obligations" in the respective contract;
(3)we determine the "transaction price" for each performance obligation in the
respective contract;
(4)we allocate the transaction price to each performance obligation; and
(5)we recognize revenue only when we satisfy each performance obligation.
  These five elements, as applied to each of our revenue categories, are
summarized below:
(a) Product Sales: We sell our products to pharmaceutical
wholesalers/distributors or to our product licensees (i.e., our customers). Our
wholesalers/distributors in turn sell our products directly to clinics,
hospitals, and private oncology-based practices. Revenue from our product sales
is recognized as physical delivery of product occurs (when our customer obtains
control of the product), in return for agreed-upon consideration.
Our gross product sales (i.e., delivered units multiplied by the contractual
price per unit) are reduced by our corresponding gross-to-net ("GTN") estimates
using the "expected value" method, resulting in reported "product sales, net"
that reflects the amount we ultimately expect to realize in net cash proceeds,
taking into account our current period gross sales and related cash receipts,
and the subsequent cash disbursements on these sales that we estimate for the
various GTN categories discussed below. These estimates are based upon
information received from external sources (such as written or oral information
obtained from our customers with respect to their period-end inventory levels
and sales to end-users during the period), in combination with management's
informed judgments. Due to the inherent uncertainty of these estimates, the
actual amount incurred (of some, or all) of product returns, government
chargebacks, prompt pay discounts, commercial rebates, Medicaid rebates, and
distribution, data, and group purchasing organization ("GPO") administrative
fees may be materially above or below the amount estimated, then requiring
prospective adjustments to our reported net product sales.
These GTN estimate categories (that comprise our GTN liabilities) are each
discussed below:
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Product Returns Allowances: Our customers are contractually permitted to return
certain purchased products within the contractual allowable time before/after
its applicable expiration date. Returns outside of this aforementioned criteria
are not customarily allowed. We estimate expected product returns using our
historical return rates. Returned product is typically destroyed since
substantially all are due to its imminent expiry and cannot be resold.
Government Chargebacks: Our products are subject to pricing limits under certain
federal government programs (e.g., Medicare and 340B Drug Pricing Program).
Qualifying entities (i.e., end-users) purchase products from our customers at
their qualifying discounted price. The chargeback amount we incur represents the
difference between our contractual sales price to our customer, and the
end-user's applicable discounted purchase price under the government program.
There may be significant lag time between our reported net product sales and our
receipt of the corresponding government chargeback claims from our customers.
Prompt Pay Discounts: Discounts for prompt payment are estimated at the time of
sale, based on our eligible customers' prompt payment history and the
contractual discount percentage.
Commercial Rebates: Commercial rebates are based on (i) our estimates of
end-user purchases through a group GPO, (ii) the corresponding contractual
rebate percentage tier we expect each GPO to achieve, and (iii) our estimates of
the impact of any prospective rebate program changes made by us.
Medicaid Rebates: Our products are subject to state government-managed Medicaid
programs, whereby rebates are issued to participating state governments. These
rebates arise when a patient treated with our product is covered under Medicaid,
resulting in a discounted price for our product under the applicable Medicaid
program. Our Medicaid rebate accrual calculations require us to project the
magnitude of our sales, by state, that will be subject to these rebates. There
is a significant time lag in our receiving rebate notices from each state
(generally several months or longer after our sale is recognized). Our estimates
are based on our historical claim levels by state, as supplemented by
management's judgment.
Distribution, Data, and GPO Administrative Fees: Distribution, data, and GPO
administrative fees are paid to authorized wholesalers/distributors of our
products for various commercial services including: contract administration,
inventory management, delivery of end-user sales data, and product returns
processing. These fees are based on a contractually-determined percentage of our
applicable sales.
(b) License Fees: Our out-license arrangements allow licensees to market our
product(s) in certain territories for a specific term (representing the
out-license of "functional intellectual property"). These arrangements may
include one or more of the following forms of consideration: (i) upfront license
fees, (ii) sales royalties, (iii) sales milestone-achievement fees, and (iv)
regulatory milestone-achievement fees. We recognize revenue for each based on
the contractual terms that establish our right to collect payment once the
performance obligation is achieved, as follows:
(1) Upfront License Fees: We determine whether upfront license fees are earned
at the time of contract execution (i.e., when rights transfer to the customer)
or over the actual (or implied) contractual period of the out-license. As part
of this determination, we evaluate whether we have any other requirements to
provide substantive services that are inseparable from the performance
obligation of the license transfer. Our customers' "distinct" rights to licensed
"functional intellectual property" at the time of contract execution results in
concurrent revenue recognition of all upfront license fees (assuming that there
are no other performance obligations at contract execution that are inseparable
from this license transfer).

(2) Royalties: Under the "sales-or-usage-based royalty exception" we recognize
revenue in the same period that our
licensees complete product sales in their territory for which we are
contractually entitled to a percentage-based royalty receipt.

(3) Sales Milestones: Under the "sales-or-usage-based royalty exception" we recognize revenue in full within the period that our licensees achieve annual or aggregate product sales levels in their territories for which we are contractually entitled to a specified lump-sum receipt.

(4) Regulatory Milestones: Under the terms of the respective out-license, regulatory achievements may either be our responsibility, or that of our licensee.



•When our licensee is responsible for the achievement of the regulatory
milestone, we recognize revenue in full (for the contractual amount due from our
licensee) in the period that the approval occurs (i.e., when the "performance
obligation" is satisfied by our customer) under the "most likely amount" method.
This revenue
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recognition remains "constrained" (i.e., not recognized) until regulatory
approval occurs, given its inherent uncertainty and the requirement of a
significant revenue reversal not being probable if achievement does not occur.
At each reporting period, we re-evaluate the probability of milestone
achievement and the associated revenue constraint; any resulting adjustments
would be recorded on a cumulative catch-up basis, thus reflected in our
financial statements in the period of adjustment.

•When we are responsible for the achievement of a regulatory milestone, the
"relative selling price method" is applied for purposes of allocating the
transaction price to our performance obligations. In such case, we consider (i)
the extent of our effort to achieve the milestone and/or the enhancement of the
value of the delivered item(s) as a result of milestone achievement and (ii) if
the milestone payment is reasonable relative to all of the deliverables and
payment terms (including other potential milestone consideration) within the
arrangement. We have historically assessed the contractual value of these
milestones upon their achievement to be identical to the allocation of value of
our performance obligations and thus representing the "transaction price" for
each milestone at contract inception. We recognize this revenue in the period
that the regulatory approval occurs (i.e., when we complete the "performance
obligation") under the "most likely amount" method, and revenue recognition is
otherwise "constrained" until regulatory approval occurs, given its inherent
uncertainty and the requirement of a significant revenue reversal not being
probable if achievement does not occur. At each reporting period, we re-evaluate
the probability of milestone achievement and the associated revenue constraint;
any resulting adjustments would be recorded on a cumulative catch-up basis, thus
reflected in our financial statements in the period of adjustment.
(c) Service Revenue: We receive fees under certain arrangements for (i) sales
and marketing services, (ii) supply chain services, (iii) research and
development services, and (iv) clinical trial management services.
Our rights to receive payment for these services may be established by (1) a
fixed-fee schedule that covers the term of the arrangement, so long as we meet
ongoing performance obligations, (2) our completion of product delivery in our
capacity as a procurement agent, (3) the successful completion of a phase of
drug development, (4) favorable results from a clinical trial, and/or (5)
regulatory approval events.
We consider whether revenue associated with these service arrangements is
reportable each period, based on our completed services or deliverables (i.e.,
satisfied "performance obligations") during the reporting period, and the terms
of the arrangement that contractually result in fixed payments due to us. The
promised service(s) within these arrangements are distinct and explicitly stated
within each contract, and our customer benefits from the separable service(s)
delivery/completion. Further, the nature of the promise to our customer as
stated within the respective contract is to deliver each named service
individually (not a transfer of combined items to which the promised goods or
services are inputs), and thus are separable for revenue recognition.
Property and Equipment, Net

Our property and equipment, net is stated at historical cost, and is depreciated
on a straight-line basis over an estimated useful life that corresponds with its
designated asset category. We evaluate the recoverability of "long-lived assets"
(which includes property and equipment) whenever events or changes in
circumstances in our business indicate that the asset's carrying amount may not
be recoverable. Recoverability is measured by a comparison of the carrying
amount to the net undiscounted cash flows expected to be generated by the asset
group. An impairment loss would be recorded for the excess of net carrying value
over the fair value of the asset impaired. The fair value is estimated based on
expected discounted future cash flows or other methods such as orderly
liquidation value based on assumptions of asset class and observed market data.
An orderly liquidation value is the amount that could be realized upon
liquidation, given a sufficient amount of time to find a purchaser for a sale of
assets in their existing condition and location, as of a specific date, and
assuming the sale is to market participants who can utilize such assets in their
highest and best use. The orderly liquidation values are applied against the
carrying values of the assets and the impairment loss is measured as the
difference between the liquidation value and the carrying value of the assets.
During the fourth quarter of 2020, we determined that we would no longer proceed
with the technology transfer and validation of a second manufacturing source for
ROLONTIS and communicated this decision to the second source manufacturer. We
had invested significant capital to prepare this facility for production. Given
the decision to discontinue this work, we determined that the value of certain
ROLONTIS production equipment had a carrying amount in excess of the anticipated
recoverable value as there would be no future cash flows from these assets other
than through the sale of this equipment. We determined the fair value of these
assets under an orderly liquidation value method and recorded an impairment of
$19.7 million to our carrying value for this equipment, which was recorded as
research and development expense. In connection with this decision, we
additionally wrote off $8.5 million in prepaid costs related to future
manufacturing activities that would no longer be taking place as research and
development expense.
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In August 2018, the FASB issued Accounting Standards Update No. 2018-15,
Intangibles - Goodwill and other - Internal-Use Software (Subtopic 350-40),
which amended its guidance for costs of implementing a cloud computing service
arrangement and aligns the requirements for capitalizing implementation costs
incurred in a hosting arrangement that is a service contract with the
requirements for capitalizing implementation costs incurred to develop or obtain
internal-use software, and to expense such capitalized implementation costs over
the term of the hosting arrangement. The guidance is effective for fiscal years
beginning after December 15, 2019, with early adoption permitted. On January 1,
2021, we adopted this standard on a prospective basis for applicable
implementation costs, which did not have a material impact on our consolidated
financial statements.
Stock-Based Compensation
Stock-based compensation expense for equity awards granted to our employees and
members of our Board of Directors is recognized on a straight-line basis over
each award's vesting period. Recognized compensation expense is net of an
estimated forfeiture rate, representing the percentage of awards that are
expected to be forfeited prior to vesting, though is ultimately adjusted for
actual forfeitures. We use the Black-Scholes option pricing model to determine
the fair value of stock options and stock appreciation rights (as of the date of
grant) that have service conditions for vesting. We use the Monte Carlo
valuation model to value equity awards (as of the date of grant) that have
combined market conditions and service conditions for vesting.
The recognition of stock-based compensation expense and the initial calculation
of stock option fair value requires uncertain assumptions, including (a) the
pre-vesting forfeiture rate of the award, (b) the expected term that the stock
option will remain outstanding, (c) our stock price volatility over the expected
term (and that of our designated peer group with respect to certain market-based
awards), and (d) the prevailing risk-free interest rate for the period matching
the expected term.
With regard to (a)-(d) above: we estimate forfeiture rates based on our
employees' overall forfeiture history, which we believe will be representative
of future results. We estimate the expected term of stock options granted based
on our employees' historical exercise patterns, which we believe will be
representative of their future behavior. We estimate the volatility of our
common stock on the date of grant based on the historical volatility of our
common stock for a look-back period that corresponds with the expected term. We
estimate the risk-free interest rate based upon the U.S. Department of the
Treasury yields in effect at award grant, for a period equaling the expected
term of the stock option.
Research and Development Costs
Our research and development costs are expensed as incurred. Research and
development costs consist primarily of salaries, benefits, and other
staff-related costs including associated stock-based compensation, laboratory
supplies, clinical trial and related clinical manufacturing costs, costs related
to manufacturing preparations, fees paid to other entities that conduct certain
research and development activities on our behalf and payments made pursuant to
license agreements. Clinical trial and other development costs incurred by third
parties are expensed as the contracted work is performed. We accrue for costs
incurred as the services are being provided by monitoring the status of
activities and the invoices received from its external service providers. We
adjust our accruals as actual costs become known. Where contingent milestone
payments are due to third parties under research and development or license
agreements, the milestone payment obligations are expensed when the clinical or
regulatory milestone results are achieved.

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