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Indaptus Therapeutics Doses First Subject in its Ongoing Phase 1 Open Label Clinical Trial of Decoy20 in Patients with Advanced Solid Tumors

Indaptus Therapeutics
Indaptus Therapeutics

First Dose Initial Side-Effect Profile Consistent with Expected Outcome

NEW YORK, March 07, 2023 (GLOBE NEWSWIRE) -- Indaptus Therapeutics, Inc. (Nasdaq: INDP, “Indaptus” or “the Company”), a biotechnology company focused on discovering and developing transformative therapeutics for patients, today announces the dosing of the first subject in INDP-D101. INDP-D101 is the Company’s first-in-human, open label, dose escalation and expansion, multicenter Phase 1 clinical trial of its lead compound Decoy20 in patients with advanced/metastatic solid tumors.

After Decoy20 dosing, the subject experienced expected and manageable adverse events believed to be related to the immune system activating components known to be in the product. A second subject in the first three-subject cohort is expected to be enrolled following final assessment of the safety and tolerability associated with dosing of the first subject, per the study protocol.

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“Following dosing of our first subject in INDP-D101, we are optimistic regarding our expectations for this part of the trial,” said Michael Newman, Ph.D., the Company’s founder and chief scientific officer. “Our hypothesis for the invention and development of Decoy20 was based on attenuation and killing of non-pathogenic bacteria to produce a product with a novel, less toxic and potentially more effective ratio of immune stimulating components. We are encouraged that the initial adverse event profile exhibited by our first subject appears to be consistent with this hypothesis.”

The study’s objectives are to assess the safety and tolerability of Decoy20, to determine the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D), as well as to assess Decoy20 pharmacokinetics (PK), pharmacodynamics and clinical activity.

The Phase 1 study was initiated with a single dose escalation, which is planned to be followed by an expansion with continuous weekly administration of Decoy20. The study is enrolling patients with advanced/metastatic solid tumors, who have exhausted approved treatment options. More information can be found at www.clinicaltrials.gov.

The primary endpoint of the study is incidence, relatedness and severity of adverse events and treatment-emergent adverse events and determination of the number of subjects per cohort with dose limiting toxicity-based adverse events. Secondary endpoints include the incidence of anti-drug antibodies and neutralizing antibodies pre- and post-treatment, change in Decoy20 PK parameters over time, objective response rate in subjects with measurable disease and duration of response. More information can be found at www.clinicaltrials.gov.

About Indaptus Therapeutics

Indaptus 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) agonist Decoy platform. The products 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 products 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 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 products 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, with associated “cold” to “hot” tumor inflammation signature transition.

IND-enabling, nonclinical toxicology studies demonstrated safe 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. Indaptus Decoy products have also produced significant single agent activity against chronic hepatitis B virus (HBV) and chronic human immunodeficiency virus (HIV) infections in pre-clinical models.

Forward-Looking Statements

This press release contains forward-looking statements with the meaning of the Private Securities Litigation Reform Act. These include statements regarding management’s expectations, beliefs and intentions regarding, among other things, our expectations and plans regarding the Phase 1 clinical trial of Decoy20, including the timing and design thereof. 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; 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” included in our most recent Annual Report on Form 10-K filed with the SEC on March 21, 2022, and our other filings with the SEC, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. All forward-looking statements speak only as of the date of this press release and are expressly qualified in their entirety by the cautionary statements included in this press release. We undertake no obligation to update or revise forward-looking statements to reflect events or circumstances that arise after the date made or to reflect the occurrence of unanticipated events, except as required by applicable law.

Contact: investors@indaptusrx.com

Investor Relations Contact:

CORE IR
Louie Toma
louie@coreir.com

CORE IR
Jules Abraham (media)
917-885-7378
julesa@coreir.com