The following Management's Discussion and Analysis of Financial Condition and
Results of Operations contains forward-looking statements regarding our business
development plans, pre-clinical and clinical studies, regulatory reviews,
timing, strategies, expectations, anticipated expenses levels, business
prospects and positioning with respect to market, demographic and pricing
trends, business outlook, technology spending and various other matters
(including contingent liabilities and obligations and changes in accounting
policies, standards and interpretations) and express our current intentions,
beliefs, expectations, strategies or predictions. These forward-looking
statements are based on a number of assumptions and currently available
information and are subject to a number of risks and uncertainties. Our actual
results could differ materially from those anticipated in these forward-looking
statements as a result of various factors, including those set forth under
"Special Note Regarding Forward-Looking Statements" and under "Risk Factors" and
elsewhere in this annual report. The following discussion should be read in
conjunction with our financial statements and related notes thereto included
elsewhere in this annual report.



Our Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is provided in addition to the accompanying financial statements and notes to assist readers in understanding our results of operations, financial condition, and cash flows. MD&A is organized as follows:

? Company Overview - Discussion of our business plan and strategy in order to

provide context for the remainder of MD&A.

? Critical Accounting Policies - Accounting policies that we believe are

important to understanding the assumptions and judgments incorporated in our

reported financial results and forecasts.

? Results of Operations - Analysis of our financial results comparing the year

ended December 31, 2022 to the year ended December 31, 2021.

? Liquidity and Capital Resources - Liquidity discussion of our financial

condition and potential sources of liquidity.






Company Overview



Business



We are a pharmaceutical company focused on the research and development of novel
targeted precision therapeutics for the treatment of cancer. Our approach
utilizes our proprietary delivery technology to better enhance immuno-modulation
for improved therapeutic outcomes. Our potential first-in-class immune-oncology
lead asset, RT-AR001, an adenosine A2B receptor antagonist, is differentiated by
its intratumoral delivery of nano- or microparticle formulations that allows for
better tumor infiltration. The adenosine A2 Receptor is one of many T-cell
surface immune checkpoint proteins. Our patented portfolio of adenosine receptor
antagonists provides flexibility to optimize treatment based on the specific
adenosine targets found in each type of cancer.



Adenosine Receptor Modulators



The adenosine receptor modulators include A2A, A2B and dual A2A/A2B antagonists,
that have broad development applicability including indications within
immuno-oncology. Very high concentrations of adenosine are produced in the tumor
microenvironment which prevents the host's own immune cells from attacking the
tumor. Adenosine receptor antagonists as single-agents and in combination with
other existing immuno-oncology agents may overcome this immunosuppression and
boost the host immune response leading to enhanced anti-tumor activity as well
as inhibition of metastasis. Preclinical data has shown the direct effects with
our drug candidates on certain types of cancer cells.



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Rebus Holdings/ Ridgeway Licensing Agreement





Pursuant to our recent termination of license with Ridgeway Therapeutics, Inc.,
we reacquired the rights to certain intellectual property, discussed above, and
are currently focusing on a pipeline of small molecule adenosine receptor
modulators. In October 2020, pursuant to the cancellation of a license agreement
whereby we previously licensed US Patent 9,593,118, we reacquired the exclusive
right to such patent that covers both A2B and dual A2A/A2B antagonists.
Accordingly, going forward our major focus will be: (i) further characterization
of the anti-cancer activity of our unique pipeline delivery platform containing
A2A, A2B and dual A2A/A2B antagonists, leading to selection of a clinical
candidate or candidates for an Investigative New Drug or IND enabling studies;
and (ii) licensing and/or partnering our delivery platform and the A2B and dual
A2A/A2B antagonists for further development.



Pre-Revenue


We are a pre-revenue, early-stage company that has not achieved profitability, and has no product revenues. Additionally, we have no approved products for sale.





Recent Developments



? Effective October 12, 2021, we (i) completed a 1-for-75 Reverse Stock Split

and (ii) a holding company reorganization whereby we changed our name to Rebus

Holdings, Inc.

? On August 16, 2021, we appointed Raul Silvestre, Esq. as (i) our interim chief

executive officer and principal accounting officer and (ii) a member of the

Board of Directors.

? On June 18, 2021, we completed the private placement of $600,000 of

non-interest bearing senior convertible debentures in exchange for $500,000 in


    cash and the cancellation of $100,000 in obligations.

  ? On January 12, 2021, we completed the private placement of $500,000 of
    non-interest bearing senior convertible debentures.




Financial



To date, we have devoted substantially all of our efforts and financial resources to the development of our proposed drug candidates. We have not received FDA approval to market, distribute or sell any products. We have recently begun working on developing IND approved studies for our adenosine receptor technology platform.





Since our inception in 2003, we have generated no revenue from product sales and
have funded our operations principally through the private and public sales of
our equity securities. We have never been profitable and as of December 31,
2022, we had an accumulated deficit of approximately $65.3 million. We expect to
continue to incur significant operating losses for the foreseeable future as we
continue the development of our product candidates and advance them through
clinical trials.



Our cash balances at December 31, 2022 were approximately $5,000 representing
100% of total assets. In January 2021, we completed a private placement of
$500,000 in cash of our debt securities and in June 2021 we completed an
additional private placement of $500,000 in cash of our debt securities. Based
on our current expected level of operating expenditures and current cash balance
as of the date of this report, we expect to be able to fund our operations into
the first quarter of 2023. This period could be shortened if there are any
significant increases in spending that were not anticipated or other unforeseen
events.



We anticipate raising additional cash through the private or public sales of
equity or debt securities to continue to fund our operations and the development
of our product candidates. There is no assurance that any such collaborative
arrangement will be entered into or that financing will be available to us when
needed in order to allow us to continue our operations, or if available, on
terms acceptable to us. If we do not raise sufficient funds in a timely manner,
we may be forced to curtail operations, delay or stop our ongoing pre-clinical
studies and potential clinical trials, cease operations altogether, or file for
bankruptcy. We currently do not have commitments for future funding from any
source.



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Going Concern



Our auditors' report on our December 31, 2022 consolidated financial statements
expressed an opinion that our capital resources as of the date of their Audit
Report were not sufficient to sustain operations or complete our planned
activities for the upcoming year unless we raised additional funds. Upon the
cancellation of the Ridgeway license, we resumed preclinical development. Our
current cash level raises substantial doubt about our ability to continue as a
going concern. If we do not obtain additional funds, we may no longer be able to
continue as a going concern and will cease operation which means that our
shareholders will lose their entire investment.



Critical Accounting Policies and Use of Estimates





The preparation of financial statements in conformity with accounting principles
generally accepted in the United States requires management to make significant
judgments and estimates that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of expenses during the
reporting period. Management bases these significant judgments and estimates on
historical experience and other assumptions it believes to be reasonable based
upon information presently available.



Recent Accounting Pronouncements

There have not been any recent changes in accounting pronouncements and Accounting Standards Update (ASU) issued by the Financial Accounting Standards Board (FASB) during the twelve months ended December 31, 2022 that are of significance or potential significance to the Company.





Results of Operations


Year Ended December 31, 2022 Compared to the Year Ended December 31, 2021





Our results of operations have varied significantly from year to year and
quarter to quarter and may vary significantly in the future. We did not have
revenue during the years ending December 31, 2022 and 2021. We do not anticipate
generating any revenues during 2023. Net loss for 2022 was approximately $1.0
million and net income for 2021 was approximately $2.7 million, resulting from
the operational activities described below.



Operating Expenses



Operating expense totaled $0.7 million and $1.0 million during 2022 and 2021,
respectively. The decrease in operating expenses is the result of the following
factors.



                                      Year Ended                Change in 2022
                                     December 31,                 Versus 2021
                               2022              2021             $           %
                                (amount in thousands)
Operating Expenses
Research and development     $     239       $        494     $    (255 )     (52 )%
General and administrative         425                528          (103 )     (20 )%
Total operating expense      $     664       $      1,022     $    (358 )     (35 )%




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Research and Development


Research and development expenses totaled $0.2 million and $0.5 million for the years ended 2022 and 2021, respectively. The decrease of approximately $0.3 million, or 52%, for the year ended December 31, 2022 compared to the same period in 2021, was primarily due to decreased development expense.





Our current research and development expenses currently consist primarily of
consulting fees and development expense related to development of the adenosine
A2R antagonists and preparation for an IND filing.



General and Administrative



General and administrative expenses totaled $0.4 million and $0.5 million during
2022 and 2021, respectively. The decrease of approximately $0.1 million, or 20%,
in 2022 compared to 2021 was primarily due to decreased professional fees,
director compensation and corporate communications.



Our general and administrative expenses currently consist primarily of expenditures related to legal, accounting and tax, other professional services, and general operating expenses.





Other Income (Expense)


Other income (expense) totaled approximately $0.3 million of expense and $3.7 million of income for 2022 and 2021, respectively.





                                                    Year Ended                   Change in 2022
                                                   December 31,                    Versus 2021
                                              2022              2021             $             %
                                               (amount in thousands)
Gain (loss) on change in fair value of
derivative liability                       $     (263 )     $      3,687     $  (3,950 )        (107 )%
Gain on conversion of debt                        (24 )            1,116        (1,140 )        (102 )%
Interest (expense), net                           (69 )           (1,083 )       1,014            94 %
Total other income (expense)               $     (356 )     $      3,720
 $  (4,076 )        (110 )%



Gain (loss) on change in fair value of derivative liability





As a result of a change in the fair value of our derivative liability, we
realized loss of $0.3 million and gain of $3.7 million during the years ended
December 31, 2022 and 2021, respectively. The change in the fair value of our
derivative liability was the result of our convertible debentures and notes
issued in September 2017, July 2018, December 2018, July 2019, October 2019,
November 2019, March 2020, October 2020, January 2021 and June 2021, where we
issued convertible notes with variable conversion rates, and to the issuance of
our Series F preferred stock in October 2020, which is convertible into a
variable number of shares of common stock. Refer to Note 7 in our Consolidated
Financial Statements for further discussion on our derivative liability.



Gain on conversion of debt



There was a loss on conversion of debt of approximately $0.02 million during the
year ended December 31, 2022, with a gain of approximately $1.1 million during
the year ended December 31, 2021. Gain on conversion of debt results from the
difference between the fair value of common stock issued upon conversion and the
carrying amount of the debt converted.



Interest income (expense)



We had $0.1 million net interest expense in 2022, compared to $1.1 million of
expense in 2021. The decrease of $1.0 million was attributable to a decrease in
the cost associated with derivative instruments issued with a value in excess of
proceeds received.



                                       30




Liquidity and Capital Resources





We have incurred losses since our inception in 2003 as a result of significant
expenditures for operations and research and development and the lack of any
approved products to generate revenue. We have an accumulated deficit of
approximately $65.3 million as of December 31, 2022 and anticipate that we will
continue to incur additional losses for the foreseeable future. Through
December 31, 2022, we have funded our operations through the private sale of our
equity securities, convertible debt and exercise of options and warrants,
resulting in gross proceeds of $39.1 million. Cash at December 31, 2022 was
approximately $5,000.



Our auditors' report on our December 31, 2022 financial statements expressed an
opinion that our capital resources as of the date of their Audit Report were not
sufficient to sustain operations or complete our planned activities for the
upcoming year unless we raised additional funds. Based on our current level of
expected operating expenditures, we expect to be able to fund our operations
into the first quarter of 2023. This assumes that we spend minimally on general
operations and only continue conducting our ongoing clinical trials, and that we
do not encounter any unexpected events or other circumstances that could shorten
this time period. If we do not obtain additional funds by such time, we may no
longer be able to continue as a going concern and will cease operation which
means that our shareholders will lose their entire investment.



We are actively seeking sources of financing to fund our continued operations
and research and development programs. To raise additional capital, we may sell
equity or debt securities, or enter into collaborative, strategic and/or
licensing transactions. There can be no assurance that we will be able to
complete any financing transaction in a timely manner or on acceptable terms or
otherwise. If we are not able to raise additional cash, we may be forced to
further delay, curtail, or cease development of our product candidates, or

cease
operations altogether.



                                                     Year Ended
                                                    December 31,
                                               2022              2021
                                               (amounts in thousands)
Cash at beginning of year                   $      711       $        404

Net cash used in operating activities             (706 )             (693 )
Net cash provided by investing activities            -                  -
Net cash provided by financing activities            -              1,000
Cash at end of year                         $        5       $        711

Net Cash Used in Operating Activities





Net cash used in operating activities was $0.7 million and $0.7 million during
2022 and 2021, respectively. A decrease in net loss (after adjusting for noncash
items) of approximately $0.4 million was offset by an increase in changes in
accounts payable and accrued expense of approximately $0.4 million.



Net Cash Used in Investing Activities

Cash provided by investing activities was $0 for each of the years 2022 and 2021.

Net Cash Provided by Financing Activities

There was no cash provided by financing activities for the year ended December 31, 2022. During 2021, we received net proceeds of $1,000,000 from the sales of our securities and convertible debentures. We are actively seeking sources of financing to fund our continued operations and research and development programs.





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