Forward Looking Statements



This Quarterly Report on Form 10-Q contains statements that are not statements
of historical fact and are forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933 and Section 21E of the Securities
Exchange Act of 1934 (the "Exchange Act"). The forward-looking statements are
principally, but not exclusively, contained in "Item 2: Management's Discussion
and Analysis of Financial Condition and Results of Operations." Forward-looking
statements include, but are not limited to, statements about management's
confidence or expectations and our plans, objectives, expectations and
intentions that are not historical facts and the potential impact of COVID-19 on
our business and operations. In some cases, you can identify forward-looking
statements by terms such as "may," "will," "should," "could," "would,"
"expects," "plans," "anticipates," "believes," "goals," "sees," "estimates,"
"projects," "predicts," "intends," "think," "potential," "objectives,"
"optimistic," "strategy," and similar expressions intended to identify
forward-looking statements. These statements reflect our current views with
respect to future events and are based on assumptions and subject to risks and
uncertainties. Given these uncertainties, you should not place undue reliance on
these forward-looking statements. Factors that may cause our actual results to
differ materially from those in the forward-looking statements include our
ability to access debt and equity markets and raise additional funds when
needed; the success of our collaborations, clinical trials and pre-clinical
development efforts and programs, which success may not be achieved on a timely
basis or at all; our ability to obtain and maintain regulatory approval for our
implant products, bioreactors, scaffolds and other devices we pursue, including
for the esophagus or airway, which approvals may not be obtained on a timely
basis or at all; the number of patients who can be treated with our products;
the amount and timing of costs associated with our development of implant
products, bioreactors, scaffolds and other devices; our failure to comply with
regulations and any changes in regulations; unpredictable difficulties or delays
in the development of new technology; our collaborators or other third parties
we contract with, including with respect to conducting any clinical trial or
pre-clinical development efforts, not devoting sufficient time and resources to
successfully carry out their duties or meet expected deadlines; our ability to
attract and retain qualified personnel and key employees and retain senior
management; potential liability exposure with respect to our products; the
availability and price of acceptable raw materials and components from
third-party suppliers; difficulties in obtaining or retaining the management and
other human resource competencies that we need to achieve our business
objectives; increased competition in the field of regenerative medicine and
bioengineering, and the financial resources of our competitors; our ability to
obtain and maintain intellectual property protection for our device and product
candidates; our inability to implement our growth strategy; the control our
principal stockholders can exert based on holding a majority of voting power;
plus factors described under the heading "Item 1A. Risk Factors" in our Annual
Report on Form 10-K for the year ended December 31, 2021 filed with the
Securities and Exchange Commission (the "SEC") on March 31, 2022 or described in
our other public filings. Our results may also be affected by factors of which
we are not currently aware. We may not update these forward-looking statements,
even though our situation may change in the future, unless we have obligations
under the federal securities laws to update and disclose material developments
related to previously disclosed information.

Biostage, Inc. is referred to herein as "we," "our," "us", and "the Company".

Business Overview


We are a clinical-stage biotechnology company focused on the development of
regenerative medicine treatments for disorders of the gastro-intestinal system
and the airway that result from cancer, trauma or birth defects. Our technology
is based on our proprietary cell-therapy platform that uses a patient's own stem
cells to regenerate and restore function to damaged organs. We believe that our
technology represents a next generation solution for restoring organ function
because it allows the patient to regenerate their own organ, thus eliminating
the need for human donor or animal transplants, the sacrificing of another of
the patient's own organs or permanent artificial implants.

We conducted the world's first successful regeneration of the esophagus in a
cancer patient in August 2017. This surgery was performed by Dr. Denis Wigle,
Chair of Thoracic Surgery at the Mayo Clinic in a patient with esophageal
cancer. The results were published in the Journal of Thoracic Oncology Clinical
and Research Reports in August 2021. The procedure demonstrated that using the
Biostage technology, we were able to successfully regenerate esophageal tissue,
including the mucosal lining, to restore the integrity, continuity and
functionality of the esophageal tube. This successful first-in-human experience,
plus the research we have performed on 45 pigs, led the FDA to approve our
10-patient combined phase 1 and phase 2 clinical trial. This combination trial
will measure both safety and efficacy in the patient population.

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We were incorporated and commenced operations on November 1, 2013 as a result of
a spin-off from Harvard Bioscience, Inc., or Harvard Bioscience. On that date,
we became an independent company that operates the regenerative medicine
business previously owned by Harvard Bioscience. The spin-off was completed
through the distribution of all the shares of common stock of Biostage to
Harvard Bioscience stockholders.

We have also formed a subsidiary in Hong Kong, Harvard Apparatus Regenerative
Technology Limited, as we continue to assess the market and regulatory approval
pathway in China as to our implant products. We are not certain at this time as
to which market, including U.S. or China for example, may provide the most
viable initial pathway for regulatory approval to a commercial product. This
will depend on a number of factors, including the approval and development
processes, related costs, ability to raise capital and the terms and conditions
thereof, as well as the ongoing impact of the COVID-19 pandemic, among other
factors. Any development and capital raising efforts in China may include a
joint venture in relation to our Hong Kong subsidiary, and would also involve a
number of commercial variables, including rights and obligations pertaining to
licensing, development, and financing, among others. Our failure to receive or
obtain such clearances or approvals on a timely basis or at all, whether that be
in the U.S., China or otherwise, would have an adverse effect on our results of
operations.

Since our incorporation, we have devoted substantially all of our resources to
developing our programs, building our intellectual property portfolio, business
planning, raising capital and providing general and administrative support for
these operations. To date, we have financed our operations with proceeds from
the sales of common stock and preferred stock. In December 2017, we sold the
inventory and rights to manufacture and sell research-only versions of our
bioreactors to Harvard Bioscience. We did not recognize any revenues during the
quarters ended September 30, 2022 and 2021.

Our product candidates are currently in development and have not yet received regulatory approval for sale anywhere in the world.

Financial Condition and Need for Additional Funds

We expect to continue to incur operating losses and negative cash flows from operations for 2022 and in future years.

Operating Losses and Cash Requirements



We have incurred substantial operating losses since our inception, and as of
September 30, 2022 had an accumulated deficit of approximately $81.5 million and
will require additional financing to fund future operations. We expect that our
operating cash on-hand as of September 30, 2022 of approximately $3.0 million
will enable us to fund our operating expenses and capital expenditure
requirements into the second quarter of 2023. We expect to continue to incur
operating losses and negative cash flows from operations for 2022 and in future
years. Therefore, as disclosed in Note 1 to our Condensed Consolidated Financial
Statements appearing elsewhere in this Quarterly Report on Form 10-Q, these
conditions raise substantial doubt about our ability to continue as a going
concern.

We will need to raise additional funds to fund our operations. In the event we
do not raise additional capital from outside sources prior to the end of June of
2023, we may be forced to curtail or cease our operations.

Cash requirements and cash resource needs will vary significantly depending upon
the timing of the financial and other resource needs that will be required to
complete ongoing development, pre-clinical and clinical testing of product
candidates, as well as regulatory efforts and collaborative arrangements
necessary for our product candidates that are currently under development. We
are currently seeking and will continue to seek financings from other existing
and/or new investors to raise necessary funds through a combination of public or
private equity offerings. We may also pursue debt financings, other financing
mechanisms, research grants, or strategic collaborations and licensing
arrangements. We may not be able to obtain additional financing on favorable
terms, if at all.

Our operations will be adversely affected if we are unable to raise or obtain
needed funding and may materially affect our ability to continue as a going
concern. Our condensed consolidated financial statements have been prepared
assuming that we will continue as a going concern and therefore, the condensed
consolidated financial statements do not include any adjustments to reflect the
possible future effects on the recoverability and classification of assets or
the amount and classifications of liabilities that may result from the outcome
of this uncertainty.

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Small Business Innovation Research Grant



On March 28, 2018, we were awarded a Fast-Track Small Business Innovation
Research (SBIR) grant by the Eunice Kennedy National Institute of Child Health
and Human Development (NICHD) to support testing of pediatric Biostage
Esophageal Implants. For the three and nine-month periods ended September 30,
2021, the Company recognized approximately $0 and $165,000, respectively, of
grant income from the SBIR grant. The SBIR grant expired effective September 30,
2021.

Components of Operating Loss

Research and development expense. Research and development expense consists of
salaries and related expenses, including share-based compensation, for personnel
and contracted consultants and various materials and other costs to develop our
new products, primarily: synthetic scaffolds, including investigation and
development of materials and investigation and optimization of cellularization,
autoseeders, and 3D bioreactors, as well as studies of cells and cell behavior.
Other research and development expenses include the costs of outside service
providers and material costs for prototype and test units and outside
laboratories and testing facilities performing cell growth and materials
experiments, as well as the costs of all other preclinical research and testing
including animal studies and expenses related to potential patents. We expense
research and development costs as incurred.

General and administrative expense. General and administrative expense consists
primarily of salaries and other related expenses, including share-based
compensation, for personnel in executive, accounting, information technology and
human resources roles. Other costs include professional fees for legal and
accounting services, insurance, investor relations and facility costs.

Forgiveness of notes payable. On May 23, 2021, we were notified by our lender
that provided our related Loan that the SBA determined that our application for
loan forgiveness was approved, and the SBA remitted the forgiveness amount to
our lender. We have accounted for this loan forgiveness as an extinguishment
during the nine months ended September 30, 2021.

Sublease income. On January 5, 2022, the Company executed a four-month sublease
agreement for certain laboratory and office space at its Holliston,
Massachusetts facility. The Company further extended the sublease agreement to a
month-to-month basis until August 31, 2022 when the other party vacated the
premises.. For the three and nine months ended September 30, 2022, the Company
recorded sublease income of approximately $26,000 and $87,000, respectively,
relating to this agreement.

Grant income. Grant income reflects income earned under the SBIR grant. Grant
income was recognized based on timing of when qualified research and development
costs are incurred.

Other (expense) income, net. Other (expense) income, net, consists primarily of
the changes in fair value of our warrant liability from the change in the fair
value of common stock warrants classified as liability awards during the three
and nine months ended September 30, 2021. We previously used the Black-Scholes
pricing model to value the related warrant liability. In February of 2022, the
underlying common stock warrants expired unexercised.

Critical Accounting Policies and Estimates



Our management's discussion and analysis of our financial condition and results
of operations is based on our financial statements, which we have prepared in
accordance with accounting principles generally accepted in the United States,
or. GAAP. The preparation of these 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 financial statements, as well as the expenses during the reporting
periods. We evaluate these estimates and judgments on an ongoing basis. We base
our estimates on 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. Our actual results may differ
materially from these estimates under different assumptions or conditions.

While our significant accounting policies are discussed in more detail in Note 2
to our Condensed Consolidated Financial Statements appearing elsewhere in this
Quarterly Report on Form 10-Q, we believe that the following accounting policies
are the most critical for fully understanding and evaluating our financial
condition and results of operations.

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Share-based Compensation

We account for our share-based compensation in accordance with the fair value
recognition provisions of current authoritative guidance. Share-based awards,
including stock options, are measured at fair value as of the grant date and
recognized as expense over the requisite service period (generally the vesting
period), which we have elected to amortize on a straight-line basis. Expense on
share-based awards for which vesting is performance or milestone based is
recognized on a straight-line basis from the date when we determine the
achievement of the milestone is probable to the vesting/milestone achievement
date. Since share-based compensation expense is based on awards ultimately
expected to vest, it has been reduced by an estimate for future forfeitures. We
estimate forfeitures at the time of grant and revise our estimate, if necessary,
in subsequent periods. We estimate the fair value of options granted using the
Black-Scholes option valuation model. Significant judgment is required in
determining the proper assumptions used in this model. The assumptions used
include the risk-free interest rate, expected term, expected volatility, and
expected dividend yield. We base our assumptions on historical data when
available or, when not available, on a peer group of companies. However, these
assumptions consist of estimates of future market conditions, which are
inherently uncertain and subject to our judgment, and therefore any changes in
assumptions could significantly impact the future grant date fair value of
share-based awards.

Warrant Liability



Most of the warrants to purchase shares of our common stock have been classified
on our condensed consolidated balance sheets as equity. We classify warrants as
a liability in our condensed consolidated balance sheets if the warrant is a
free-standing financial instrument that may require us to transfer cash
consideration upon exercise and that cash transfer event would be out of our
control. Such a "liability warrant" is initially recorded at fair value on the
date of grant using the Black-Scholes model, net of issuance costs, and it is
subsequently re-measured to fair value at each subsequent balance sheet date.
Changes in fair value of the warrants is recognized as a component of other
income (expense) in the condensed consolidated statements of operations. The
warrants classified as a liability expired unexercised during the nine months
ended September 30, 2022 and the remaining liability on the expiration date of
approximately $2,000 was recognized as other income.

Results of Operations

The following table summarizes the results of our operations for the three and nine-months ended September 30, 2022 and 2021 (in thousands):



                           Three months ended September 30,         Change 2022 vs. 2021             For the Nine Months Ended September 30,          Change 2022 vs. 2021
                              2022                  2021            Change            %                  2022                       2021               Change            %
Operating expenses
Research and
development             $             369      $           250    $       119            48 %    $                998       $              1,023    $        (25)         (2) %
General and
administrative                        711                  572            139            24 %                   3,662                      1,712            1,950         114 %
Total operating
expenses                            1,080                  822            258            31 %                   4,660                      2,735            1,925          70 %

Other income (expense)
Forgiveness of notes
payable                                 -                    -              -            nm %                       -                        408            (408)       (100) %
Sublease income                        26                    -             26            nm %                      87                          -               87         100 %
Grant income                            -                    -              -            nm %                       -                        165            (165)       (100) %
Other (expense) income,
net                                   (2)                 (27)             25          (93) %                     (5)                         57             (62)       (109) %
Total other income
(expense), net                         24                 (27)             51         (189) %                      82                        630            (548)        (87) %
Net loss                $         (1,056)      $         (849)    $     (207)            24 %    $            (4,578)       $            (2,105)    $     (2,473)         117 %


nm = not meaningful

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Comparison of the three months ended September 30, 2022 and September 30, 2021

Research and Development Expense



Research and development expense increased approximately $0.1 million, or 48%,
to approximately $0.4 million for the three months ended September 30, 2022 as
compared to approximately $0.3 million for the three months ended September 30,
2021. This increase was primarily due to legal costs incurred for a patent
application and consulting fees.

General and Administrative Expense


General and administrative expense increased approximately $0.1 million, or 24%,
to approximately $0.7 million for the three months ended September 30, 2022 as
compared to approximately $0.6 million for the three months ended September 30,
2021. This increase was primarily due to higher share-based compensation expense
and increased headcount related costs of approximately $0.1 million and an
increase of approximately $0.1 million for outside consulting fees for
supporting our ongoing public company requirements and special meeting of
stockholders offset by the reduced legal and related costs of approximately $0.1
million relating to the completion of litigation for a wrongful death complaint
and related matters more fully described in Note 8 to our condensed consolidated
financial statements.

Sublease income

On January 5, 2022, we executed a four-month sublease agreement for certain
laboratory and office space at our Holliston, Massachusetts facility. The
Company further extended the sublease agreement on a month-to-month basis which
is ongoing as of September 30, 2022. For the three months ended September 30,
2022, we recorded sublease income of approximately $26,000 relating to this
agreement.

Grant income



For the three months ended September 30, 2022 and 2021, we recorded grant income
of approximately $0 in both periods for qualified expenditures under our SBIR
grant which expired effective September 30, 2021.

Other (expense) income, net


During the three months ended September 30, 2021, the change in fair value of
our warrant liability resulted in other expense of approximately $27,000 due
primarily to an increase in the stock price of the underlying common shares.

During the three months ended September 30, 2022, we recorded interest expense of approximately $2,000 for on insurance installment payments.

Comparison of the nine months ended September 30, 2022 and 2021



Research and Development Expense. Research and development expense decreased
approximately $25,000, or 2%, to $1 million for the nine months ended September
30, 2022 as compared to approximately $1 million for the nine months ended
September 30, 2021. This decrease was primarily due to approximately $0.1
million decrease in outsourced study costs offset by an increase of $0.1 million
relating to laboratory operations.

General and Administrative Expense. General and administrative expense increased
approximately $2 million, or 114%, to approximately $3.7 million for the nine
months ended September 30, 2022 compared to approximately $1.7 million for the
nine months ended September 30, 2021. This increase was due to primarily to an
increase in legal and related costs of approximately $1.4 million relating to
the contingency matter for our litigation that has been settled for a wrongful
death compliant and related matters more fully described in Note 8 to our
condensed consolidated financial statements, an increase of approximately $0.4
million for higher stock-based compensation expenses and increased headcount
related costs and an increase of approximately $0.2 million for outside
consulting fees for supporting our ongoing public company requirements.

Forgiveness of notes payable. On May 23, 2021, we were notified by the Lender
that provided our PPP Loan that the Small Business Administration determined
that our application for PPP loan forgiveness was approved, and the SBA remitted
the forgiven amount to

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the Lender. As a result, we recorded a gain from forgiveness of our notes payable of approximately $0.4 million for the nine months ended September 30, 2021.



Sublease income. On January 5, 2022, we executed a four-month sublease agreement
for certain laboratory space at our Holliston, Massachusetts facility. For the
nine months ended September 30, 2022, we recorded sublease income of
approximately $0.1 million relating to this agreement.

Grant income



For the nine months ended September 30, 2022 and 2021, we recorded grant income
of approximately $0 and $0.2 million, respectively, for qualified expenditures
under our SBIR grant which expired effective September 30, 2021.

Other (expense) income, net


The warrants classified as a liability expired unexercised during the nine
months ended September 30, 2022 and the remaining liability on the expiration
date of approximately $2,000 was recognized as other income. During the nine
months ended September 30, 2021, the change in fair value of our warrant
liability resulted in other expense of approximately $14,000 due primarily to a
higher stock price of the underlying common shares.

During the nine months ended September 30, 2022, we recorded interest expense of
approximately $7,000 for on insurance installment payments. During the nine
months ended September 30, 2021, we received a refund payment of approximately
$0.1 million for certain withholding taxes paid in previous years to the German
tax authorities which were remitted on to us on behalf of Harvard Apparatus
Regenerative Technology GmbH, our German subsidiary.

Liquidity and Capital Resources



Sources of liquidity. We have incurred operating losses since inception, and as
of September 30, 2022, we had an accumulated deficit of approximately $81.5
million. We are currently investing significant resources in the development and
commercialization of our product candidates for use by clinicians and
researchers in the fields of regenerative medicine and bioengineering. As a
result, we expect to incur operating losses and negative operating cash flows
for the foreseeable future.

The following table sets forth the primary uses of cash for the nine months ended September 30, 2022 and 2021 (in thousands):



                                                Nine Months Ended September 

30,


                                                   2022                  

2021

Net cash used in operating activities $ (3,373) $ (1,627) Net cash used by investing activities $

            (8)      $        

-

Net cash provided by financing activities $ 5,060 $

2,596

Comparison of Nine months Ended September 30, 2022 and 2021



Operating activities. Net cash used in operating activities of approximately
$3.4 million for the nine months ended September 30, 2022 was due primarily to
our net loss of approximately $4.6 million and an increase of $0.3 million for
financing costs offset by adjustments for non-cash items of approximately $0.8
million due to non-cash expenses for share-based compensation and depreciation,
and an approximately $.7 million increase to cash from changes in working
capital due to the timing of payments for accounts payable, accrued expenses and
prepaid expenses.

Net cash used in operating activities of approximately $1.6 million for the nine
months ended September 30, 2021 was due primarily to our net loss of
approximately $2.1 million and adjustments for non-cash items of approximately
$0.1 million due to the add-back for a gain from forgiveness of our notes
payable, offset, in part, by non-cash expenses including share-based
compensation, depreciation and the change in fair value of our warrant
liability. These cash outflows were offset, in part, by an approximately $0.4
million increase to cash from changes in working capital due to the timing of
payments for prepaid expenses and accounts payable.

Investing activities. Net cashed used in investing activities for the nine months ended September 30, 2022 and 2021 totaled approximately $8,000 and zero, respectively, and represented purchases of property, plant and equipment.



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Financing activities. Net cash generated from financing activities during the
nine months ended September 30, 2022 of approximately $5.1 million consisted of
net proceeds received from a private placement transaction that resulted in the
issuance of 854,771 shares of our common stock at a purchase price of $5.92 per
share and warrants to purchase 427,390 shares of common stock at an exercise
price of $8.88 per share to a group of investors.

Net cash generated from financing activities during the nine months ended
September 30, 2021 of approximately $2.6 million consisted of net proceeds
received from private placement transactions that resulted in the issuance of
1,300,000 shares of our common stock at a purchase price of $2.00 per share and
warrants to purchase 150,000 shares of common stock at an exercise price of
$2.00 per share to a group of investors.

Off-Balance Sheet Arrangements

We do not have any material off-balance sheet arrangements as of September 30, 2022.



Other Information

None.

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