Indaptus Therapeutics Reports Second Quarter 2025 Financial Results and Provides Corporate Update - Company Initiates Combination Trial and Strengthens Balance Sheet to Support Continued Clinical Progress - NEW YORK (

Therapeutics Reports Second Quarter 2025 Financial Results and Provides Corporate Update

Company Initiates Combination Trial and Strengthens Balance Sheet to Support Continued Clinical Progress -

YORK (August 13, 2025) - Indaptus Therapeutics, Inc. (Nasdaq: INDP) ("Indaptus" or the "Company"), a clinical

stage biotechnology company dedicated to pioneering innovative cancer and viral infection treatments, today announces financial results

for the second quarter ended June 30, 2025, and provides a corporate update.

Meckler, Indaptus Therapeutics' Chief Executive Officer, commented, "This quarter marks a major clinical inflection point

for Indaptus. In under four years since our founding, we have progressed from IND-enabling studies to an active combination trial in

patients. This pace of development is a testament to the dedication of the small, but focused Indaptus Team. A few weeks ago, we dosed

the first patient in our Phase 1b/2 combination study evaluating Decoy20 with the PD-1 checkpoint inhibitor tislelizumab. Our preclinical

studies showed that Decoy20 broadly enhances both innate and adaptive immune cell activation and works synergistically with a PD-1 inhibitor

to induce solid tumor regression. This trial marks the first clinical evaluation of that combination, with the aim of delivering new

options for patients who have not benefited from existing immunotherapies."

the financial front, we raised approximately $5.7 million in gross proceeds through the sale of convertible promissory notes and accompanying

warrants. In July 2025, the notes were converted into common stock and pre-funded warrants. This financing strengthens our balance sheet

and supports the continued progress of our clinical development. We remain focused on disciplined execution and look forward to sharing

initial combination trial data later this year."

Highlights for the Second Quarter Ended June 30, 2025

and development expenses for the three months ended June 30, 2025, were approximately $2.2 million, an increase of approximately $0.5

million from $1.7 million in the three months ended June 30, 2024. The change was primarily due to an increase of $0.8 million in the

ongoing Phase 1 study and was offset by a decrease of approximately $0.3 million in stock-based compensation and payroll and related

expenses. Research and development expenses for the six months ended June 30, 2025, were approximately $5.0 million, an increase of approximately

$1.7 million from $3.3 million in the six months ended June 30, 2024. The change was primarily due to an increase of $2.3 million in

the ongoing Phase 1 study and was offset by a decrease of approximately $0.6 in stock-based compensation and payroll and related expense.

and administrative expenses for the three months ended June 30, 2025, were approximately $2.3 million, a decrease of approximately $0.1

million from $2.4 million in the three months ended June 30, 2024. The change was primarily due to a decrease of $0.9 million in stock-based

compensation, payroll and related expenses, legal fees, and investor relations costs and was offset by an increase of approximately $0.8

million in transaction-related expenses associated with the private placement of convertible notes completed in June 2025. General and

administrative expenses for the six months ended June 30, 2025, were approximately $4.0 million, a decrease of approximately $0.7 million

from $4.7 million in the six months ended June 30, 2024. The change was primarily due to a decrease of $1.5 million in stock-based compensation,

payroll and related expenses, legal fees, and investor relations costs and was offset by an increase of approximately $0.8 million in

transaction-related expenses associated with the private placement of convertible notes.

per share for the three months ended June 30, 2025, was approximately $9.09, compared with approximately $13.16 for the three months

ended June 30, 2024. Loss per share for the six months ended June 30, 2025, was approximately $18.09, compared with approximately $25.79

per share for the six months ended June 30, 2024.

of June 30, 2025, the Company had cash and cash equivalents of approximately $6.2 million. As of December 31, 2024, the Company had cash

and cash equivalents of $5.8 million. The Company expects that its current cash and cash equivalents will support ongoing operating activities

into the fourth quarter of 2025. This cash runway guidance is based on current operational plans and excludes any additional funding

and any business development activities that may be undertaken. The Company continues to assess all financing options that would support

its corporate strategy.

cash used in operating activities was approximately $9.1 million for the six months ended June 30, 2025, compared with net cash used

in operating activities of approximately $6.4 million for the six months ended June 30, 2024. The increase of approximately $2.5 million

in net cash used was primarily attributable to an increase in research and development activities, which were mostly related to the Phase

1 clinical trial and an increase in transaction-related expenses associated with the private placement of convertible notes.

cash provided by financing activities for the six months ended June 30, 2025, was approximately $9.4 million, which was provided by issuance

and sale of common stock and warrants in the January 2025 financing, the issuance and sale of our common stock under the SEPA and the

June 2025 private placement of convertible notes and warrants. Net cash provided by financing activities for the six months ended June

30, 2024 was approximately $0.4 million, which was provided by issuance and sale of common stock under the at-the-market facility.

remains focused on executing its clinical strategy with discipline, efficiency, and scientific rigor. The Company expects to share initial

combination trial data from the first cohort of patients later this year.

Meckler added, "With our first patient dosed in combination and a financial foundation in place, we believe Indaptus is entering

its most exciting phase yet. We remain focused on executing our clinical strategy and ultimately delivering on our mission to help more

patients benefit from immunotherapy."

Indaptus Therapeutics

Therapeutics has evolved from more than a century of immunotherapy advances. The Company's novel approach is based on the hypothesis

that efficient activation of both innate and adaptive immune cells and pathways and associated anti-tumor and anti-viral immune responses

will require a multi-targeted package of immune system-activating signals that can be administered safely intravenously (i.v.). Indaptus'

patented technology is composed of single strains of attenuated and killed, non-pathogenic, Gram-negative bacteria producing a multiple

Toll-like receptor (TLR), Nucleotide oligomerization domain (NOD)-like receptor (NLR) and Stimulator of interferon genes (STING) agonist

Decoy platform. The product candidates are designed to have reduced i.v. toxicity, but largely uncompromised ability to prime or activate

many of the cells and pathways of innate and adaptive immunity. Decoy product candidates represent an antigen-agnostic technology that

have produced single-agent activity against metastatic pancreatic and orthotopic colorectal carcinomas, single agent eradication of established

antigen-expressing breast carcinoma, as well as combination-mediated eradication of established hepatocellular carcinomas, pancreatic

and non-Hodgkin's lymphomas in standard pre-clinical models, including syngeneic mouse tumors and human tumor xenografts. In pre-clinical

studies tumor eradication was observed with Decoy product candidates in combination with anti-PD-1 checkpoint therapy, low-dose chemotherapy,

a non-steroidal anti-inflammatory drug, or an approved, targeted antibody. Combination-based tumor eradication in pre-clinical models

produced innate and adaptive immunological memory, involved activation of both innate and adaptive immune cells, and was associated with

induction of innate and adaptive immune pathways in tumors after only one i.v. dose of Decoy product candidate, with associated "cold"

to "hot" tumor inflammation signature transition. The Decoy platform has also been shown to induce activation, polarization

or maturation of human macrophages, dendritic, NK, NKT, CD4 T and CD8 T cells in vitro. IND-enabling, nonclinical toxicology studies

demonstrated i.v. administration without sustained induction of hallmark biomarkers of cytokine release syndromes, possibly due to passive

targeting to liver, spleen, and tumor, followed by rapid elimination of the product candidate. Indaptus' Decoy product candidates

have also produced meaningful single agent activity against chronic hepatitis B virus (HBV) and chronic human immunodeficiency virus

(HIV) infections in pre-clinical models.

press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act. These include statements

regarding management's expectations, beliefs and intentions regarding, among other things, the sufficiency of our cash and cash

equivalents to fund our ongoing activities and our expectations and plans regarding our Phase 1 clinical trial of Decoy20 and our combination

study and the anticipated effects of our product candidates, including Decoy20. Forward-looking statements can be identified by the use

of forward-looking words such as "believe", "expect", "intend", "plan", "may",

"should", "could", "might", "seek", "target", "will", "project",

"forecast", "continue" or "anticipate" or their negatives or variations of these words or other comparable

words or by the fact that these statements do not relate strictly to historical matters. Because forward-looking statements relate to

matters that have not yet occurred, these statements are inherently subject to risks and uncertainties that could cause our actual results

to differ materially from any future results expressed or implied by the forward-looking statements. Many factors could cause actual

activities or results to differ materially from the activities and results anticipated in forward-looking statements, including, but

not limited to the following: our limited operating history; conditions and events that raise substantial doubt regarding our ability

to continue as going concern; the need for, and our ability to raise, additional capital given our lack of current cash flow; our clinical

and preclinical development, which involves a lengthy and expensive process with an uncertain outcome; our incurrence of significant

research and development expenses and other operating expenses, which may make it difficult for us to attain profitability; our pursuit

of a limited number of research programs, product candidates and specific indications and failure to capitalize on product candidates

or indications that may be more profitable or have a greater likelihood of success; our ability to obtain and maintain regulatory approval

of any product candidate; the market acceptance of our product candidates; our reliance on third parties to conduct our preclinical studies

and clinical trials and perform other tasks; our reliance on third parties for the manufacture of our product candidates during clinical

development; our ability to successfully commercialize Decoy20 or any future product candidates; our ability to obtain or maintain coverage

and adequate reimbursement for our products; the impact of legislation and healthcare reform measures on our ability to obtain marketing

approval for and commercialize Decoy20 and any future product candidates; product candidates of our competitors that may be approved

faster, marketed more effectively, and better tolerated than our product candidates; our ability to adequately protect our proprietary

or licensed technology in the marketplace; the impact of, and costs of complying with healthcare laws and regulations, and our failure

to comply with such laws and regulations; information technology system failures, cyberattacks or deficiencies in our cybersecurity;

and unfavorable global economic conditions. These and other important factors discussed under the caption "Risk Factors"