MUC4

Company to Host Conference Call Today, May 9, at 4:30pm ETBOCA RATON, Fla., May 09, 2024 (GLOBE NEWSWIRE) -- INmune Bio Inc. (NASDAQ: INMB) (the “Company”), a clinical-stage immunology company focused on developing treatments that harness the patient’s innate immune system to fight disease, today announces its financial results for the quarter ended March 31, 2024 and provides a business update. Q1 2024 and Recent Corporate Highlights DN-TNF Platform Highlights (XPro™): The AD02 randomized, blinded program for patients with Early Alzheimer's Disease remains on schedule to reach its final enrollment target by mid-2024, with top-line data expected to be presented approximately six months after the last patient is enrolled. The trial is currently active in North America, UK, EU, and the Pacific Rim. The Company anticipates having its Phase II FDA meeting in the first half of 2025 before transitioning to the global Phase III trial in the latter portions of next year.The Company successfully completed extended stability validation for XPro™ at continuous storage in solution at 2C-8C. The 24 and 30-month stability test samples passed all chemistry and potency assays allowing the Company to make a conservative claim of 24-month stability and positioning it to meet the dosing demands envisioned in the Phase III trial.On April 30th, the Company issued a press release highlighting the progress of two patients from the Phase 1b AD trial in Australia who have continued to receive XPro™ treatment under an open-label program administered by their treating physician. The testimonials underscore XPro’s™ unique attributes that may prevent progression cognitive impairment versus existing treatments that appears to slow the pace of but do not stop the progression of cognitive dysfunction.INB03 cancer platform – two posters were presented at the annual American Association of Cancer Research in San Diego on April 8, 2024. The posters extends ongoing research led by Roxana Schillaci, Ph.D., of Instituto de Biología y Medicina Experimental in Buenos Aries, Argentina on the importance of MUC4 expression in high-risk breast cancer subtypes is a predictor of progression and resistance to therapy. Tumors that express MUC4 have an unfavorable immunobiology of the tumor microenvironment (TME) and increased metastatic potential all driven by soluble TNF. Neutralization of soluble TNF with INB03 resulted in down-regulation of immune checkpoint proteins on T cells (PD1, TIGIT, LAG3 and CTLA4) and macrophages (CD47 and SIRPꭤ) in the TME. The data suggests testing for MUC4 before treatment will predict resistance to first-line therapy which may allow better treatment choices that may improve patient outcomes. INKmune™ Platform: The first cohort in the Phase I/II open label trial of INKmune™ in metastatic castration-resistant prostate cancer (mCRPC) successfully completed the first dosing. Following review by the Safety Review Committee (SRC), approval was granted to proceed with the second dose level (cohort 2) and two patients have been enrolled. The first patient of the middle dose cohort is expected to be treated this month.Safety of INKmune remains on track. There have been nine administrations of INKmune in the mCRPC study given on an out-patient basis, with no significant adverse events. Combining the experience with INKmune from the MDS/AML and mCRPC trials, over 20 infusions of INKmune have been given safely without the need for conditioning therapy, pre-medication, or cytokine support. Patients receive three infusions of INKmune™ per dosing over two weeks and are monitored for four months for immunological and clinical responses. Three dose levels of INKmune™ are being tested in a modified Bayesian Phase I/II trial. Corporate: The Company successfully raised a combined $14.5 million of equity capital before placement agent fees and expenses in two separate transactions in late April. Of note, in the first $4.8 million offering, management, employees and members of the Board of Directors purchased over 20% of the offering. Excluding shares and warrants acquired by insiders, both offerings were priced at the market. The warrants terminate on the earlier of (1) the two (2) year anniversary of the initial exercise date of the warrant or (2) thirty (30) trading days following the reporting of top line data (EMACC) in the Phase 2 Alzheimer's program of XPro1595, (the “Termination Date”). Should the warrants be exercised for cash, the Company would receive additional funding. Upcoming Events and Milestones: Full enrollment in the Phase II XPro™ trial for treatment of neuroinflammation as a cause of Alzheimer’s Disease are expected mid-2024 followed by top-line data approximately six months from the last patient enrolled.Initiate a Phase II trial of XPro™ in patients with Treatment-Resistant Depression 2H 2024.Expect to complete enrollment in the Phase I portion of the mCRPC trial by end of Q3 2024. The Phase II portion is expected to complete enrollment in Q2, 2025. Because the trial is open-label, we expect to provide periodic data updates on the immunologic and therapeutic response to INKmune in the participants of the CaRePC trial in mCPRC. Financial Results for the First Quarter Ended March 31, 2024: Net loss attributable to common stockholders for the quarter ended March 31, 2024 was approximately $11.0 million, compared to approximately $6.5 million during the quarter ended March 31, 2023.Research and development expenses totaled approximately $8.7 million for the quarter ended March 31, 2024, compared to approximately $4.1 million during the quarter ended March 31, 2023.General and administrative expenses were approximately $2.3 million for the quarter ended March 31, 2024, compared to approximately $2.3 million during the quarter ended March 31, 2023.As of March 31, 2024, the Company had cash and cash equivalents of approximately $26.0 million. Subsequent to the end of the quarter, the Company raised gross proceeds of approximately $16.6 million from the sale of common stock and warrants.As of May 9, 2024, the Company had approximately 19.8 million common shares outstanding. Earnings Call Information To participate in this event, dial approximately 5 to 10 minutes before the beginning of the call. Please ask for the INmune Bio First Quarter Conference Call when reaching an operator. Date: May 9, 2024Time: 4:30 PM Eastern TimeParticipant Dial-in: 1-800-343-5172Participant Dial-in (international): 1-203-518-9856Conference ID: INMUNE A live audio webcast of the call can be accessed by clicking here or using this link:https://viavid.webcasts.com/starthere.jsp?ei=1666877&tp_key=6505d73fc4 A transcript will follow approximately 24 hours from the scheduled call. A replay will also be available through May 15 by dialing 1-844-512-2921 or 1-412-317-6671 (international) and entering PIN no. 1155727. About XPro™ XPro™ is a next-generation inhibitor of tumor necrosis factor (TNF) that is currently in clinical trial and acts differently than currently available TNF inhibitors in that it neutralizes soluble TNF (sTNF), without affecting trans-membrane TNF (tmTNF) or TNF receptors. XPro™ could have potential substantial beneficial effects in patients with neurologic disease by decreasing neuroinflammation. For more information about the importance of targeting neuroinflammation in the brain to improve cognitive function and restore neuronal communication visit this section of the INmune Bio’s website. About INKmune™ INKmune™ is a pharmaceutical-grade, replication-incompetent human tumor cell line which conjugates to resting NK cells and delivers multiple, essential priming signals to convert the cancer patient’s resting NK cells into tumor killing memory-like NK cells (mlNK cells). INKmune™ treatment converts the patient’s own NK cells into mlNK cells. In patients, INKmune™ primed tumor killing NK cells have persisted for more than 100 days. These cells function in the hypoxic TME because due to upregulated nutrient receptors and mitochondrial survival proteins. INKmune™ is a patient friendly drug treatment that does not require pre-medication, conditioning or additional cytokine therapy to be given to the patients. INKmune™ is easily transported, stored and delivered to the patient by a simple intravenous infusion as an out-patient. INKmune™ is tumor agnostic; it can be used to treat many types of NK-resistant tumors including leukemia, lymphoma, myeloma, lung, ovarian, breast, renal and nasopharyngeal cancer. INKmune™ is treating patients in an open label Phase I/II trial in metastatic castration-resistant prostate cancer in the US this year. About INmune Bio Inc. INmune Bio Inc. is a publicly traded (NASDAQ: INMB), clinical-stage biotechnology company focused on developing treatments that target the innate immune system to fight disease. INmune Bio has two product platforms that are both in clinical trials: The Dominant-Negative Tumor Necrosis Factor (DN-TNF) product platform utilizes dominant-negative technology to selectively neutralize soluble TNF, a key driver of innate immune dysfunction and a mechanistic driver of many diseases. DN-TNF product candidates are in clinical trials to determine if they can treat cancer (INB03™), Early Alzheimer’s disease and treatment-resistant depression (XPro™). The Natural Killer Cell Priming Platform includes INKmune™ developed to prime a patient’s NK cells to eliminate minimal residual disease in patients with cancer. INmune Bio’s product platforms utilize a precision medicine approach for the treatment of a wide variety of hematologic and solid tumor malignancies, and chronic inflammation. To learn more, please visit www.inmunebio.com. Forward-Looking Statements Clinical trials are in early stages and there is no assurance that any specific outcome will be achieved. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations but are subject to a number of risks and uncertainties. Actual results and the timing of certain events and circumstances may differ materially from those described by the forward-looking statements as a result of these risks and uncertainties. INB03™, XPro1595 (XPro™), and INKmune™ are still in clinical trials or preparing to start clinical trials and have not been approved by the US Food and Drug Administration (FDA) or any regulatory body and there cannot be any assurance that they will be approved by the FDA or any regulatory body or that any specific results will be achieved. The factors that could cause actual future results to differ materially from current expectations include, but are not limited to, risks and uncertainties relating to the Company’s ability to produce more drug for clinical trials; the availability of substantial additional funding for the Company to continue its operations and to conduct research and development, clinical studies and future product commercialization; and, the Company’s business, research, product development, regulatory approval, marketing and distribution plans and strategies. These and other factors are identified and described in more detail in the Company’s filings with the Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K, the Company’s Quarterly Reports on Form 10-Q and the Company’s Current Reports on Form 8-K. The Company assumes no obligation to update any forward-looking statements in order to reflect any event or circumstance that may arise after the date of this release. INmune Bio Contact:David Moss, CFO (858) 964-3720info@inmunebio.com Investor Contact:Jason NelsonCore IR(516) 842-9619 x-823 The following tables summarize our results of operations for the periods indicated: INMUNE BIO INC.CONDENSED CONSOLIDATED BALANCE SHEETS(In thousands, except share and per share amounts)(Unaudited) March 31,2024 December 31,2023 ASSETS CURRENT ASSETS Cash and cash equivalents $26,002 $35,848 Research and development tax credit receivable 2,133 1,905 Other tax receivable 557 537 Prepaid expenses and other current assets 1,109 1,510 Prepaid expenses – related party 23 142 TOTAL CURRENT ASSETS 29,824 39,942 Operating lease – right of use asset 389 414 Other assets 106 131 Acquired in-process research and development intangible assets 16,514 16,514 TOTAL ASSETS $46,833 $57,001 LIABILITIES, REDEEMABLE COMMON STOCK AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES Accounts payable and accrued liabilities $9,294 $7,901 Accounts payable and accrued liabilities – related parties 56 35 Deferred liabilities 520 489 Current portion of long-term debt 7,455 9,921 Operating lease, current liabilities 125 119 TOTAL CURRENT LIABILITIES 17,450 18,465 Long-term operating lease liability 360 397 TOTAL LIABILITIES 17,810 18,862 COMMITMENTS AND CONTINGENCIES Redeemable common stock, $0.001 par value; 75,697 issued and outstanding, respectively (Note 9) 799 799 STOCKHOLDERS’ EQUITY Preferred stock, $0.001 par value, 10,000,000 shares authorized, 0 shares issued and outstanding - - Common stock, $0.001 par value, 200,000,000 shares authorized, 17,950,776 shares issued and outstanding, respectively 18 18 Additional paid-in capital 160,922 159,143 Accumulated other comprehensive loss (669) (799)Accumulated deficit (132,047) (121,022)TOTAL STOCKHOLDERS’ EQUITY 28,224 37,340 TOTAL LIABILITIES, REDEEMABLE COMMON STOCK AND STOCKHOLDERS’ EQUITY $46,833 $57,001 INMUNE BIO INC.CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS(In thousands, except share and per share amounts)(Unaudited) For the Three Months EndedMarch 31, 2024 2023 REVENUE $14 $38 OPERATING EXPENSES General and administrative 2,338 2,328 Research and development 8,693 4,133 Total operating expenses 11,031 6,461 LOSS FROM OPERATIONS (11,017) (6,423) OTHER EXPENSE, NET (8) (113) NET LOSS $(11,025) $(6,536) Net loss per common share – basic and diluted $(0.61) $(0.36) Weighted average common shares outstanding – basic and diluted 18,026,473 17,945,995 COMPREHENSIVE LOSS Net loss $(11,025) $(6,536)Other comprehensive income (loss) – foreign currency translation 130 (9)Total comprehensive loss $(10,895) $(6,545) INMUNE BIO INC.CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(In thousands)(Unaudited) For the Three Months EndedMarch 31, 2024 2023 CASH FLOWS FROM OPERATING ACTIVITIES: Net loss $(11,025) $(6,536)Adjustments to reconcile net loss to net cash used in operating activities: Stock-based compensation 1,779 1,737 Accretion of debt discount 34 67 Changes in operating assets and liabilities: Research and development tax credit receivable (228) 6,285 Other tax receivable (20) (34)Prepaid expenses 401 394 Prepaid expenses – related party 119 (1)Other assets 25 - Accounts payable and accrued liabilities 1,393 (3,129)Accounts payable and accrued liabilities – related parties 21 - Deferred liabilities 31 (25)Accrued liability – long-term - 88 Operating lease liabilities (6) 13 Net cash used in operating activities (7,476) (1,141) CASH FLOWS FROM FINANCING ACTIVITIES: Repayments of debt (2,500) - Net used in financing activities (2,500) - Impact on cash from foreign currency translation 130 (9) NET DECREASE IN CASH AND CASH EQUIVALENTS (9,846) (1,150)CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 35,848 52,153 CASH AND CASH EQUIVALENTS AT END OF PERIOD $26,002 $51,003 SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION: Cash paid for income taxes $- $- Cash paid for interest expense $302 $450

Novel Immunotherapy Approach Targets Soluble Tumor Necrosis Factor to Overcome Resistance and Enhance Therapeutic Outcome in High-Risk Breast Cancer Boca Raton, Florida, April 08, 2024 (GLOBE NEWSWIRE) -- INmune Bio, Inc. (NASDAQ: INMB) (the “Company”), a clinical-stage immunology company focused on developing treatments that harness the patient’s innate immune system to fight disease, is presenting data on the use of INB03, a dominant-negative tumor necrosis factor (TNF) inhibitor of soluble TNF (sTNF) in the treatment of high-risk MUC4 expressing HER2+ and triple negative breast cancer (TNBC). INB03 is shown to decrease T cell and macrophage immune checkpoint proteins (PD1, TIGIT, LAG3, CD47 and SIRPa) in a model immunotherapy resistant HER2+ breast cancer and decrease the metastatic potential of TNBC by downregulating cell surface markers of tumor invasion (MUC4, SNAIL and Vimectin). The two posters will be presented at the annual American Association of Cancer Research in San Diego on April 8, 2024. The poster, titled, “INB03: a new immune checkpoint inhibitor that reprograms macrophage polarization, boosts ADCP and reverts T-cell exhaustion markers” outlines the use of human macrophages and T cells in a MUC4+HER2+ syngeneic breast cancer model to demonstrate that the combination of INB03 with an anti-HER2 antibody 4D5 has five distinct effects on the tumor biology, which results in decreased tumor growth (p<0.001). These include: i. a decrease in MUC4 expression ii. a 3-fold increase in T cell infiltration iii. polarization of tumor macrophages from M1 (immunosuppressive) to M2 (anti-tumor macrophages) iv. a doubling of antibody dependent cellular phagocytosis (ADCP) and v. a decrease in the expression of innate immune checkpoint proteins (CD47 and SIRP-a) and T cell checkpoint proteins (TIGIT, CTLA-4, PD1 and LAG-3) In the study, the increase in T cell infiltrate did not occur unless both anti-HER2 and INB03 immunotherapy were used in combination. Decreases in T cell and macrophage immune checkpoint proteins were caused by INB03. All changes in immune parameters are p<0.05 unless otherwise stated. The authors concluded that INB03 enhances the M1-like phenotype and reprograms already-polarized pro-tumoral M2-like macrophages to antitumoral ones. Further, it promotes ADCP against HER2+ tumor cells by downregulating the ADCP inhibitory axis CD47-SIRPα-B7H4 in vitro. Finally, the addition of INB03 to 4D5 treatment promotes T cell infiltration to the TME and downregulates immune checkpoint molecules and T cell exhaustion markers in vitro and in vivo. The authors speculate that these effects could avoid tumor immune evasion to anti-HER2 targeted therapies by reinvigorating the immune infiltrate. The poster can be found on the Company’s web site. A second poster, titled, “MUC4 is a biomarker of metastasis in TNBC and its downregulation by blocking soluble TNF prevents metastasis in combination with immunotherapy,” studies the importance of MUC4 expression in TNBC survival. Approximately half of women with TNBC express MUC4. Overall survival of women with MUC4 expressing TNBC is dramatically worse (p<0.005) with almost a 5-fold increased risk of death (p<0.018). MUC4 expression in the tumor negatively correlated with fewer Tumor Infiltrating Lymphocytes (TILs, p<0.003), PD-L1 (p<0.001) and Ki67 (p<0.036) expression. In human TNBC cell lines, INB03 decreased the expression mesenchymal markers of invasive capacity, MUC4, SNAIL and Vimectin, and decreased activity in an invasion assay (p<0.01). In a murine LMM3 model, treatment with the combination of INB03 and anti-PD1 checkpoint antibodies dramatically decreased lung metastasis with no animals receiving combination therapy having >3 lesions compared to 40% of control animals (p<0.05). The authors concluded: i) MUC4 expression is an independent biomarker of poor overall survival and is associated with an increased risk of metastasis in TNBC patients; ii) MUC4 is inversely correlated with TILs, and is associated with tumors with low proliferative rate (Ki67<30%) and negative PD-L1: it would be useful to identify tumors resistant to chemotherapy and immunotherapy; iii) TNF blockade decreases MUC4 expression, mesenchymal markers and reduces invasive capacity in TNBC cell lines; iv) soluble TNF blockade in combination with anti PD-1 antibody prevents the establishment of lung metastases in a preclinical model of TNBC. They further propose soluble TNF as a new target for the treatment of TNBC, and MUC4 as a predictive marker to guide a combined treatment with selective sTNF neutralization with immunotherapy. The poster can be found on the Company’s web site. Dr. Schillaci, senior author of the study, proposes INB03 is a new class of immunotherapy called a pan immune checkpoint modulator in MUC4 expressing breast cancer. INB03 isn't a selective immune checkpoint inhibitor targeting a specific immune checkpoint protein; rather, it downregulates all immune checkpoint proteins present on both T cells and macrophages. “Soluble TNF, secreted by cancer cells, shields tumors from immune attacks by altering the tumor microenvironment, rendering the patient's immune response ineffective and fostering resistance to immunotherapy. Through extensive research, we have unraveled the mechanisms underlying the tumor protecting role of soluble TNF which causes tumors to proliferate. Translating these findings into targeted strategies for high-risk breast cancer, we can devise a precision medicine approach to counteract soluble TNF's effects, reversing therapy resistance, preventing metastasis, and empowering the immune system to combat tumors effectively,” said Dr. Schillaci “Dr. Schillaci has shown that MUC4 expression in high-risk breast cancer subtypes is a predictor of resistance to therapy due to an unfavorable immunobiology of the TME and increased metastatic potential that is driven by soluble TNF,” said RJ Tesi M.D., CEO of INmune Bio. “Neutralization of soluble TNF changes a resistant tumor biology into one that is more favorable. All of the individuals involved in this project share the belief that prospectively determining MUC4 expression in high-risk breast cancer subtypes will guide therapy decisions and significantly impact patient outcomes.” The posters will be presented at AACR on April 8: PO.IM01.02 - Immune Checkpoints and Inhibitory Molecules 1 9 am INB03: a new immune checkpoint inhibitor that reprograms macrophage polarization, boosts ADCP and reverts T-cell exhaustion markers by Sofia Bruni, Maria Florencia Mercogliano and Roxana Schillaci PO.TB04.02. Biomarkers and Expression Differences in Metastatic Progression 1.30 pm MUC4 is a biomarker of metastasis in TNBC and its downregulation by blocking soluble TNF prevents metastasis in combination with immunotherapy by Mauro, Florencia; Bruni, S; Dupont, A; Inurrigarro, G; Figurelli, S; Barchuk, S, Lopez Della Vecchia, D; Cordo Russo, R;Gil Deza, E; Mercogliano, M; Schillaci, Roxana As this science is presented at AACR, the Company plans to expand its business development efforts in search of the right partner to advance the clinical development of a combination therapy with INB03. “We believe these findings reflect novelty and inventive step, and further support the expansion of our evolving patent portfolio covering INB03 for oncology indications, in particular, use of INB03 to target soluble TNF in combination with antibodies and other anti-cancer therapies,” said Joshua Schoonover, General Counsel of INmune Bio. “Through our collaborations with academic and other research institutions, such as Dr. Schillaci’s lab at CONICET, INmune Bio has learned much about INB03, including its effects on tumor biology, which enables us to explore a number of cancer treatment indications and commercial applications of the drug, and further supports partnership efforts with the goal of improving the efficacy of certain anti-cancer therapies by combining them with INB03.” Interested parties should inquire with the Company for more information about available partnering opportunities. About INB03 INB03 is a DN-TNF inhibitor that neutralizes soluble TNF (sTNF) without affecting trans membrane TNF (tmTNF) or TNF receptors. Compared to currently available non-selective TNF inhibitors, INB03 preserves the immune response to cancer by decreasing immunosuppressive cells in the TME including TAM and MDSC while promoting recruitment of anti-tumor immune cells including cytolytic CD8+ lymphocytes, NK cells and anti-tumor macrophages. INB03 has completed an open label dose-escalation Phase I trial in patients with advanced cancer. In that trial, INB03 was found to be safe and well tolerated - no dose limiting toxicity was found. INB03 decreased blood biomarkers of inflammation in patients with advanced cancer. About INmune Bio, Inc. INmune Bio, Inc. is a publicly traded (NASDAQ: INMB), clinical-stage biotechnology company focused on developing treatments that target the innate immune system to fight disease. INmune Bio has two product platforms that are both in clinical trials: The Dominant-Negative Tumor Necrosis Factor (DN-TNF) product platform utilizes dominant-negative technology to selectively neutralize soluble TNF, a key driver of innate immune dysfunction and a mechanistic driver of many diseases. DN-TNF product candidates are in clinical trials to determine if they can treat cancer (INB03™), Mild Alzheimer’s disease, Mild Cognitive Impairment and treatment-resistant depression (XPro™). The Natural Killer Cell Priming Platform includes INKmune™ developed to prime a patient’s NK cells to eliminate minimal residual disease in patients with cancer. INmune Bio’s product platforms utilize a precision medicine approach for the treatment of a wide variety of hematologic and solid tumor malignancies, and chronic inflammation. To learn more, please visit www.inmunebio.com. Forward Looking Statements Clinical trials are in early stages and there is no assurance that any specific outcome will be achieved. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations but are subject to a number of risks and uncertainties. Actual results and the timing of certain events and circumstances may differ materially from those described by the forward-looking statements as a result of these risks and uncertainties. INB03™, XPro1595, and INKmune™ are still in clinical trials or preparing to start clinical trials and have not been approved by the US Food and Drug Administration (FDA) or any regulatory body and there cannot be any assurance that they will be approved by the FDA or any regulatory body or that any specific results will be achieved. The factors that could cause actual future results to differ materially from current expectations include, but are not limited to, risks and uncertainties relating to the Company’s ability to produce more drug for clinical trials; the availability of substantial additional funding for the Company to continue its operations and to conduct research and development, clinical studies and future product commercialization; and, the Company’s business, research, product development, regulatory approval, marketing and distribution plans and strategies. These and other factors are identified and described in more detail in the Company’s filings with the Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K, the Company’s Quarterly Reports on Form 10-Q and the Company’s Current Reports on Form 8-K. The Company assumes no obligation to update any forward-looking statements in order to reflect any event or circumstance that may arise after the date of this release. INmune Bio Contact: David Moss, CFO (858) 964-3720info@inmunenbio.com Investor Contact:Jason Nelson, Core IR(516) 842-9614 x-823

INB03 increases uptake of deruxtecan, the immunotoxin associated with trastuzumab deruxtecan (T-DXd, ENHERTU®), in models of resistant MUC4 expressing HER2 positive breast cancer and increases the tumor killing immunology of the tumor microenvironment. Boca Raton, Florida, Nov. 29, 2023 (GLOBE NEWSWIRE) -- INmune Bio, Inc. (NASDAQ: INMB) (the “Company”), a clinical-stage immunology company focused on developing treatments that harness the patient’s innate immune system to fight disease, is presenting data on the use of INB03, a dominant-negative TNF inhibitor of soluble TNF (sTNF) in the treatment of high-risk MUC4 expressing HER2. Roxana Schillaci, Ph.D., of Instituto de Biología y Medicina Experimental in Buenos Aries, Argentina, will present her work at the 46th annual San Antonio Breast Cancer Symposium, which runs from December 5 to 9. “This work demonstrates another way that MUC4 expression causes resistance to HER2-targeted immunotherapy in women with resistant breast cancer," said Dr. Schillaci, who is also associated with CONICET and is senior author of this work. “MUC4 expression decreases the uptake of the antibody-drug conjugate T-DXd. Decreased T-DXd uptake results in less tumor killing in this tumor model and we suspect it plays an important role in relapse of disease after treatment with T-DXd.” The poster, titled, “Blocking soluble TNF to improve potency of trastuzumab-deruxtecan by increasing internalization and antitumor innate immune response in a resistant HER2-positive breast cancer model,” shows that INB03 improves the potency of T-DXd in a model of immunotherapy resistant HER2+ breast cancer. INB03 decreases resistance to T-DXd therapy in three ways. INB03 decreases MUC4 expression on the surface of the breast cancer cells increasing the ability of the antibody to bind to the HER2 target on the cancer cell. The combination of low-dose (1.5mg/kg) T-DXd+INB03 decreases tumor growth as much as full dose (5mg/kg) T-DXd alone suggesting increased binding of the immunotoxin to the cancer cell improves anti-tumor effects. INB03 increases internalization of T-DXd and converts the immunosuppressive TME into one that is more tumor-sensitive by polarizing tumor associated macrophages (TAM) from M2-like to M1-like phenotype with increased expression of IFNg. The poster concludes that the combination of INB03 may allow for lower doses of T-DXd to be effective in women with MUC4 expressing HER2+ breast cancer and that addition of INB03 may improve the response to T-DXd in women with resistant HER2+ disease. “Response rates in women treated with T-DXd is high, but relapse is common after a period of time. Identifying and overcoming resistance mechanisms to trastuzumab-based antibody-drug conjugates (ADC) will be a key to improving outcomes,” said RJ Tesi M.D., CEO of INmune Bio. “The body of work performed by Roxana Schillaci is clinically relevant. Resistance to trastuzumab immunotherapy can be predicted prospectively based on simple immunohistochemistry stains detecting tumor expression of MUC4. We hope that this simple step will allow women to receive a treatment that subverts a resistance mechanism without waiting for treatment failure. We further believe that this precision medicine approach should improve the treatment of women with MUC4 expressing breast cancers.” ENHERTU® is a registered trademark of Daiichi Sankyo Company, Limited. About INB03 INB03 is a DN-TNF inhibitor that neutralizes soluble TNF (sTNF) without affecting trans membrane TNF (tmTNF) or TNF receptors. Compared to currently available non-selective TNF inhibitors, INB03 preserves the immune response to cancer by decreasing immunosuppressive cells in the TME including TAM and MDSC while promoting recruitment of anti-tumor immune cells including cytolytic CD8+ lymphocytes, NK cells and anti-tumor macrophages. INB03 has completed an open label dose-escalation Phase I trial in patients with advanced cancer. In that trial, INB03 was found to be safe and well tolerated - no dose limiting toxicity was found. INB03 decreased blood biomarkers of inflammation in patients with advanced cancer. INMB is planning a Phase II trial that uses INB03 as part of combination therapy. About INmune Bio, Inc. INmune Bio, Inc. is a publicly traded (NASDAQ: INMB), clinical-stage biotechnology company focused on developing treatments that target the innate immune system to fight disease. INmune Bio has two product platforms that are both in clinical trials: The Dominant-Negative Tumor Necrosis Factor (DN-TNF) product platform utilizes dominant-negative technology to selectively neutralize soluble TNF, a key driver of innate immune dysfunction and a mechanistic driver of many diseases. DN-TNF product candidates are in clinical trials to determine if they can treat cancer (INB03™), Mild Alzheimer’s disease, Mild Cognitive Impairment and treatment-resistant depression (XPro™). The Natural Killer Cell Priming Platform includes INKmune™ developed to prime a patient’s NK cells to eliminate minimal residual disease in patients with cancer. INmune Bio’s product platforms utilize a precision medicine approach for the treatment of a wide variety of hematologic and solid tumor malignancies, and chronic inflammation. To learn more, please visit . Forward Looking Statements Clinical trials are in early stages and there is no assurance that any specific outcome will be achieved. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations but are subject to a number of risks and uncertainties. Actual results and the timing of certain events and circumstances may differ materially from those described by the forward-looking statements as a result of these risks and uncertainties. INB03™, XPro1595, and INKmune™ are still in clinical trials or preparing to start clinical trials and have not been approved by the US Food and Drug Administration (FDA) or any regulatory body and there cannot be any assurance that they will be approved by the FDA or any regulatory body or that any specific results will be achieved. The factors that could cause actual future results to differ materially from current expectations include, but are not limited to, risks and uncertainties relating to the Company’s ability to produce more drug for clinical trials; the availability of substantial additional funding for the Company to continue its operations and to conduct research and development, clinical studies and future product commercialization; and, the Company’s business, research, product development, regulatory approval, marketing and distribution plans and strategies. These and other factors are identified and described in more detail in the Company’s filings with the Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K, the Company’s Quarterly Reports on Form 10-Q and the Company’s Current Reports on Form 8-K. The Company assumes no obligation to update any forward-looking statements in order to reflect any event or circumstance that may arise after the date of this release. INmune Bio Contact: David Moss, CFO (858) 964-3720 info@inmunenbio.com Investor Contact: Jason Nelson, Core IR (516) 842-9614 x-823