6-K

InflaRx N.V. (IFRX)

6-K 2022-01-10 For: 2022-01-10
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Added on April 09, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549


FORM 6-K


REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 10, 2022

Commission File Number: 001-38283


InflaRx N.V.

(Translation of registrant's name into English)


Winzerlaer Str. 2

07745 Jena, Germany

(Address of principal executive office)


Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒         Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐



INFLARX N.V.

On January 10, 2022, InflaRx N.V. (the “Company”) issued a press release titled “InflaRx Announces New Pipeline Program -- Oral C5aR Inhibitor.”

On January 10, 2022, the Company announced a new pipeline program, INF904, an oral small molecule inhibitor of C5aR. The Company expects to initiate a Phase I program in the second half of 2022 and plans to study INF904 in complement-mediated, chronic autoimmune and inflammatory diseases where oral administration is the preferred choice for patients. A copy of the press release is attached hereto as Exhibit 99.1 and is being furnished and shall not be deemed filed or incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.

In connection with a conference to be held by H.C. Wainwright & Co. going live on January 10, 2022 and a conference to be held by J.P. Morgan on January 13, 2022, the Company has updated its corporate presentation (the “Corporate Presentation”). A copy of the Corporate Presentation is attached hereto as Exhibit 99.2 and is being furnished and shall not be deemed filed or incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except as expressly set forth by specific reference in such a filing.. The Corporate Presentation will also be made available in the Investors section on the Company’s website at www.inflarx.de.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

INFLARX N.V.
Date: January 10, 2022 By: /s/ Niels Riedemann
Name: Niels Riedemann
Title: Chief Executive Officer

3


EXHIBIT INDEX

Exhibit No. Description
99.1 Press Release, dated January 10, 2022
99.2 InflaRx N.V. Corporate Presentation

Exhibit 99.1

InflaRx Announces New Pipeline Program – Oral C5aR Inhibitor

Regulatory discussions on Phase I program have been initiated
First-in-human study expected to start in the second half of 2022
--- ---

Jena, Germany, January 10, 2022 – InflaRx N.V. (Nasdaq: IFRX), a clinical-stage biopharmaceutical company developing anti-inflammatory therapeutics by targeting the complement system, today announced a new pipeline program, INF904, an oral small molecule inhibitor of C5aR.

“Inhibition of the C5a/C5aR axis provides strong anti-inflammatory effects in a variety of diseases. Blockade of C5a using highly specific antibodies, such as vilobelimab, may offer a fast, effective, and safe way to control C5a-induced inflammation. In addition to this approach, inhibition of C5aR by oral small molecules may provide the ease of administration required for effective long-term treatment for more chronic inflammatory diseases. In INF904, we have discovered a small molecule C5aR inhibitor, which has shown best-in-class potential in preclinical studies. We believe that INF904 could become a powerful inflammation-fighting tool that is highly complementary to vilobelimab,” said Prof. Renfeng Guo, Chief Scientific Officer and Founder of InflaRx.

InflaRx recently has been granted a composition of matter patent for INF904 and associated compounds by the US Patent and Trademark Office and has completed IND-enabling (preclinical) studies that demonstrated no obvious toxicological findings even in the highest dose groups in required GLP toxicity analyses. In these preclinical studies, oral INF904 showed higher plasma exposure in animals, including non-human primates, and improved inhibitory activity in a hamster neutropenia model compared to the marketed C5aR inhibitor. Anti-inflammatory therapeutic effects in several preclinical disease models were also demonstrated by INF904. Further, in contrast to the marketed C5aR inhibitor, in vitro experiments showed INF904 has substantially less inhibition of the cytochrome P450 3A4/5 (CYP3A4/5) enzymes, which play an important role in the metabolism of a variety of drugs, including glucocorticoids.

InflaRx expects to initiate a Phase I program in the second half of 2022 and plans to study INF904 in complement-mediated, chronic autoimmune and inflammatory diseases where oral administration is the preferred choice for patients.


About InflaRx N.V.:

InflaRx (Nasdaq: IFRX) is a clinical-stage biopharmaceutical company focused on applying its proprietary technology to discover and develop first-in-class or best-in-class, potent and specific inhibitors of C5a and C5aR. Complement C5a and C5aR are powerful inflammatory mediators involved in the progression of a wide variety of autoimmune and other inflammatory diseases. InflaRx was founded in 2007, and the group has offices and subsidiaries in Jena and Munich, Germany, as well as Ann Arbor, MI, USA. For further information, please visit www.inflarx.com.

Contacts:

InflaRx N.V.

Jordan Zwick – Chief Strategy Officer

Jason Stewart – Strategy & Investor Relations

Email: IR@inflarx.de

Tel: +1 917-338-6523

MC Services AG

Katja Arnold, Laurie Doyle, Andreas Jungfer

Email: inflarx@mc-services.eu

Europe: +49 89-210 2280

US: +1-339-832-0752

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements. All statements other than statements of historical fact are forward-looking statements, which are often indicated by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “believe,” “estimate,” “predict,” “potential” or “continue” and similar expressions. Forward-looking statements appear in a number of places throughout this release and may include statements regarding our intentions, beliefs, projections, outlook, analyses and current expectations concerning, among other things, our preclinical trials and planned clinical trials of INF904 and the safety and efficacy results of those trials; the impact of the COVID-19 pandemic on the Company; the timing and our ability to commence and conduct clinical trials; potential results from current or potential future collaborations; our ability to make regulatory filings, obtain positive guidance from regulators, and obtain and maintain regulatory approvals for our product candidates; our intellectual property position; our ability to develop commercial functions; expectations regarding clinical trial data; our results of operations, cash needs, financial condition, liquidity, prospects, future transactions, growth and strategies; the industry in which we operate; the trends that may affect the industry or us and the risks, uncertainties and other factors described under the heading “Risk Factors” in InflaRx’s periodic filings with the Securities and Exchange Commission. These statements speak only as of the date of this press release and involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Given these risks, uncertainties and other factors, you should not place undue reliance on these forward-looking statements, and we assume no obligation to update these forward-looking statements, even if new information becomes available in the future, except as required by law.

Exhibit 99.2

Controlling inflammation  CORPORATE PRESENTATIONJanuary 2022


Important Notice and DisclaimerThis presentation has been prepared by InflaRx N.V. (“InflaRx”), a US-Nasdaq publicly listed Dutch company having its principal place of business in Germany. This presentation is made for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy securities. The information set forth herein does not purport to be complete or to contain all of the information you may desire. Statements contained herein are made as of the date of this presentation unless stated otherwise, and neither the delivery of this presentation at any time, nor any sale of securities, shall under any circumstances create an implication that the information contained herein is correct as of any time after such date or that information will be updated or revised to reflect information that subsequently becomes available or changes occurring after the date hereof.This presentation may contain forward-looking statements. Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based on our current beliefs, expectations and assumptions regarding the future of our business, future plans and strategies, our clinical results and other future conditions. All statements other than statements of historical facts contained in this presentation, including statements regarding future results of operations and financial position, business strategy, current and prospective product candidates, planned clinical trials and preclinical activities, product approvals, research and development costs, current and prospective collaborations, timing and likelihood of success, expectations regarding market acceptance and size, plans and objectives of management for future operations, and future results of anticipated product candidates, are forward-looking statements. These risks and uncertainties include those described under the heading “Risk Factors” in InflaRx’s periodic filings with the Securities and Exchange Commission. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise. Although we believe the expectations reflected in such forward-looking statements are reasonable, we can give no assurance that such expectations will prove to be correct. Accordingly, readers are cautioned not to place undue reliance on these forward-looking statements. No representations or warranties (expressed or implied) are made about the accuracy of any such forward-looking statements.Certain information contained in this presentation relates to or is based on studies, publications, surveys and other data obtained from third-party sources and InflaRx’s own internal estimates and research. While InflaRx believes these third-party sources to be reliable as of the date of this presentation, it has not independently verified, and makes no representation as to the adequacy, fairness, accuracy or completeness of, any information obtained from third-party sources.  In addition, all of the market data included in this presentation involves a number of assumptions and limitations, and there can be no guarantee as to the accuracy or reliability of such assumptions.  Finally, while we believe our own internal research is reliable, such research has not been verified by any independent source.InflaRx N.V. has an effective shelf registration statement (including a prospectus) on file with the SEC. This presentation does not constitute an offer to sell, or the solicitation of an offer to buy, any of the Company's securities. Any offering of securities will be made only by means of a prospectus supplement, which will be filed with the SEC. In the event that, the Company conducts an offering, you may obtain a copy of the prospectus supplement and accompanying prospectus for the offering for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, the Company will arrange to send such information if you request it.  InflaRx n.v. | Winzerlaer Str. 2, 07745 Jena, Germany, Email: info@inflarx.com, Tel: +49-3641-508180, www.inflarx.com


InflaRx N.V.Targeting Complement to Control Inflammatory Diseases  3  Clinical Efficacy and Clean Safety Profile enabling Vilobelimab to Advance in Multiple IndicationsHidradenitis Suppurativa (HS): Initiated pivotal study program in Q1 2022 after receiving no comments from the FDA in the 30-day review periodPyoderma Gangraenosum (PG): Positive Phase IIa data reported – gathering regulatory input on next steps for a pivotal programSevere COVID-19: Phase III enrollment completed; topline data expected in Q1 2022ANCA-associated vasculitis (AAV): Positive Phase II data enabling further developmentCutaneous squamous cell carcinoma (cSCC): Phase II study ongoingNew Program: Oral C5aR Inhibitor INF904 to Enter Clinic in H2 2022INF904 shows promising activity and clean safety profile in animalsBest-in-class potentialUS patent issued in October 2021  Lead product candidate with pivotal program focus on immunodermatological diseases


Pipeline with Multiple Opportunities  4    Franchise  Indications  Pre-Clinical  Phase I  Phase II  Phase III  Update  VilobelimabC5a Inhibitor  Immunodermatology  Hidradenitis Suppurativa (HS)           Pivotal trial initiated with new primary endpoint      Pyoderma Gangraenosum (PG)          Positive preliminary Phase IIa open label results    Life-threateningInflammatoryDiseases  Severe COVID-19          Phase II/III study: Phase II results published; Phase III fully enrolled, topline data expected Q1 2022      ANCA-Associated Vasculitis (AAV)          Positive data in two Phase II trials    Oncology  Cutaneous Squamous Cell Carcinoma (cSCC)          Phase II trial ongoing: first patient dosed in June 2021  IFX002C5a Inhibitor  Undisclosed Chronic Inflammatory and Autoimmune Diseases            Developing for optimized use for other chronic inflammatory indications  INF904 OralC5aR inhibitor  Undisclosed Chronic Inflammatory and Autoimmune Diseases            First-in-human study to be initiated in H2 2022


The Terminal Complement Pathway  5  Membrane Attack Complex (MAC)triggers lysis of pathogens   strong amplifierof inflammation      C5aR  C5b-9 = MAC  C5L2  C5b  C5a    C5      cell activationcytokine generation     Inflammation  PKC-signaling HMGB-1 induction* (Inflammasome)      C5a concentration in blood: 10 ~ 30 ng/ml (~1-2.5 nM)  C5 concentration in blood: ~75 µg/ml (~400 nM)    other ligands: C3a, ASP, C4a etc  upregulated in many tissues during inflammation  **Rittirsch et al. Nat Med. 2008 May ; 14(5): 551; Colley et al. MABS. 2018,10 (1), 104Songlin et. al. J. Biol. Chem. 2019; 294(21) 8384–839 Muenstermann et al.. Virulence, 2020; 10(1) 677-694  C5L2 has a different binding pocket for C5a compared to other ligands like C3a, ASP, etc. and this causes different cell signaling.* The C5a signaling has been shown to be pro-inflammatory.**    other signalling involved e.g. in triglyceride synthesis, etc.      * Kalant D. et. al. J. Biol. Chem. 2003, 278 (13) 11123–11129


VilobelimabImmunodermatology Focus  Hidradenitis Suppurativa (HS)Pyoderma Gangraenosum (PG)


7  * Combined Phase III trial data for Humira: response measured by HiSCR 50 and KOL quotes in Sam Slutsky’s LifeSci Capital InflaRx initiation report 12/2018  Hurley staging for hs    Clinical FeaturesChronic, inflammatory, recurrent, debilitating skin disease of the hair follicles Most commonly in the armpit, groin and genital regionsExtremely painful inflammatory nodules, boils or abscessesDraining tunnels leading to considerable scarring and functional disability Hurley staging system used to classify progression / chronicity (Stage I – III)PrevalenceLikely > 200,000 moderate to severe (Hurley II+III) HS patients in USHigher prevalence in Europe with reports > 1% total HS prevalenceCurrent Treatment – Medical NeedHumira®(adalimumab) (TNF-alpha inhibitor) is the only approved biological in US and EuropeEstablished (but not approved) standard of care (SOC) includes topical, oral or i.v. antibiotics; in some instances, surgery is required Approximately 50% of patients with moderate to severe HS do not respond and about 50% of responder patients lose response to Humira*No treatment approved for or targeted at reducing draining tunnels as most burdensome lesion  Stage ISingle / multiple abscesses but no sinus tracts or scarring  Stage IISingle or multiple separated, recurrent abscesses with tract formation and scarring  Stage IIIMultiple interconnected tracts and abscesses involving an entire anatomic region  Hidradenitis Suppurativa (HS)Debilitating C5a-driven inflammatory skin condition with high unmet need


HiSCR is burdened by high variability (driven by AN count variability) and does not capture reduction of dTsIncreased dose required for full vilobelimab efficacyReduction in all inflammatory lesions achieved with vilobelimab high-dose with a durable long-term effect detected even at sub-optimal dosesLong-term vilobelimab treatment was well tolerated, no drug-related serious adverse events (SAEs) in OLE phase  HiSCR primary endpoint and dose response signal not met but signal towards improved AN count for the highest dose cohortStatistically significant change in draining tunnels (dTs) and in ANdT count detected for the highest dose cohortPharmacodynamic studies suggests that higher doses are needed for optimized efficacy Open label extension (OLE): in the responder group, 71% maintain HiSCR response by week 40; signals of sustainable reduction of lesion counts during long term treatment detected (with sub-optimal long-term dosing)  SHINE Phase II StudyResults and Conclusions  8  Our conclusions  REsults  ANdT count = Total number of combined inflammatory nodules, abscesses and draining tunnelsAN count = Total number of combined inflammatory nodules and abscesses


HS Phase III DevelopmentStudy Initiation  9  FDA Type A meeting (August 2021)Received feedback from FDA supportive of a new primary endpoint measuring reductions in all three inflammatory HS lesions, including Draining TunnelsFDA had previously agreed to the Phase III dosing regimen, a higher dose than studied in the Phase IIB SHINE studyPivotal development program to focus on patients suffering from moderate to severe HS with active draining disease, as supported by FDAFDA feedback incorporated in pivotal study protocol and submitted in Q4 2021; The FDA had no comments during the 30-day review periodInflaRx has initiated the Phase III with a new primary endpoint, the modified HiSCR Details about the new endpoint and the Phase III study design to be shared at virtual R&D event on February 3  FDA Meetings & Next steps                InflaRx has initiated the Phase III with a new primary endpoint, the modified HiSCR


Pyoderma Gangraenosum (PG)  10  An autoimmune condition with high unmet need    Clinical FeaturesPG is a rare but potentially life-threatening skin disorder that can lead to chronic, highly painful and difficult-to-treat wounds Many PG patients also suffer from other autoimmune disorders, such as ulcerative colitis, rheumatoid arthritis, and hematological diseases Patients suffer from severe pain, long healing times, and frequent relapsesIncidenceRare - Estimated that up to 50,000 patients in the US and Europe are affectedCurrent Treatment – Medical NeedNo drugs currently approved in the US or EUFor less severe cases, topical or intralesional treatments can be used, including topical steroidsUse of systemic immunosuppression in rapidly progressing casesMixed reports about efficacy, long treatment durations, relapses are frequently seen  Strong rationale for treatment with vilobelimab: PG associated with neutrophilic skin infiltration in affected areas and lesions, potentially triggered by C5a    Photo Source: InflaRx study


PG Phase IIa Study Design  11          800mg  Group 1 N= 6    Initiation  Day 1-8, 3 doses Maintenance  Day 15-43, 3 doses   PGA ≤ 4  PGA > 4        800mg Q2W    Individual titration  Day 57-189, 9 doses       1600mg Q2W    800mg  Completed    Observation  Day 219 & 249          800mg  Group 2 N= 6      PGA ≤ 4  PGA > 4        1600mg Q2W      2400mg Q2W    1600mg  Completed            800mg  Group 3 N= 7            2400mg Q2W    2400mg  Ongoing  19 patients enrolled in the studyPrimary endpoint: Safety Key secondary endpoints: Responder rate defined as PGA ≤3 (PGA of ≤1 is considered clinical remission and closure of target ulcer); Time to complete closure of target ulcer  Uptitration to the next dose on day 57 if PGA > 4 and at least 5 patients treated with the current dose showed no safety issues  *  *  *


Study Results – Group 1 (Low Dose)PGA-line plot of absolute values over time by patient (Actual days displayed acc. to visit windows)   12  Two patients (02 and 05) achieved complete remission of target ulcerOne patient (01) with initial response and fluctuating PGAPatients 02 and 05 stopped treatment before Day 189 based on investigator decision because of complete disease remissionPatient 03 dosed until Day 130 but stopped treatment due to Covid situation. No follow up.   PGAscore  Group 1 Results    Six evaluable subjects:  01  02  03  04  05  06  Uptitration to 1600mg on day 57 if PGA > 4 and at least 5 patients treated with 800mg show no safety issues. Applied to patient 06  Day 57  *  Planned End ofTreatment Visit  PlannedMid Term Assessment  *          Planned Obs. End     earlier treatment stop


Study Results – Group 2 (Medium Dose)PGA-line plot of absolute values over time by patient (Actual days displayed acc. to visit windows)  13  One patient (10) out of four healed upon up-titration to 2400mg group on day 57 with PGA = 0 since visit 12 (closure of large target ulcer area)Two patients (08, 09) showed temporary response, not considered responder Two patients (11, 12) discontinued early in study and were non-evaluable  Group 2 Results    07  08  09  10  11  12      Uptitration to 2400mg on day 57 if PGA > 4 and at least 5 patients treated with 1600mg show no safety issues. Applied to patients 09 and 10  PGAscore  Four evaluable patients:  *  *  *  Day 57        Planned End ofTreatment Visit  PlannedMid Term Assessment  Planned Obs. End   earlier treatment stop


Study Results – Group 3 (High Dose)PGA-line plot of absolute values over time by patient (Actual days displayed acc. to visit windows)  14  Six patients out of 7 achieved PGA score of ≤ 1 (remission)One patient (18) experienced target ulcer area decrease >50%; however, new PG lesions developedPatient 19 with complicated disease coursePre-existing diabetes and wound infection in target ulcer area on day 1 with start of antibioticsWound infection and local progression in target ulcer area on day 50Broad spectrum antibiotics and cyclosporin A starting day 50 Closure of target ulcer on day 127Patient 16 started 10 mg/d prednisone on day 72 (allowed per protocol)  Group 3 Results    13 *  19  14  15  16  17  18     * Patient 13 was discontinued from treatment after day 71 due to delayed availability of pos. baseline TB testing result (exclusion criterion). No re-activation of TB reported up to end of observation.  Seven evaluable patient:  PGAscore  Planned End ofTreatment Visit  PlannedMid Term Assessment   earlier treatment stop    Planned Obs. End


PG Phase IIa Patient 10 Case Study  15  MH: PG since Jun 2019, Hypertension since 1998; Study Day 1: Feb 2021  Cohort 2: 1600 mg Q2W, individual uptitration to 2400 mg at D57, treatment completedPrevious PG medication: Methylprednisolone only in Jun 2019, Dapsone Jun 2019- Aug 2020, Cyclosporine Oct 2019- Aug 2020 -> ulcer healed and reappeared soon after discontinuation of immunosuppressants  Concomitant Medication: Prednisone 10 mg for PG since October 2020  Day 189, V16 (20 days after last vilo. admin.)  PGA = 1  Area: 0.00 mm2  Baseline    Area: 3695 mm2  Day 99  PGA = 1   Area: 0.00 mm2  Target ulcer reappeared in August 2020


PG Phase IIa Patient 14 Case Study   16  MH: PG since October 2018, Obesity since longer time (no exact day available)Treatment Start: February 2021  Cohort 3: 2400 mg Q2W treatment completedPrevious PG medication: Ciclosporin and methylprednisolone October 2018 – September 2019, failed. Dapsone September 2020 – November 2020.  Concomitant Medication: Prednisone 10 mg since October 2018  Day 189, V16 (20 days after last IFX-1 admin.)   PGA = 1  Area: calculation not yet available  PG treatment history: ciclosporin, dapsone    Baseline    Area: 1285 mm2  Day 99  PGA = 2   Area: 0.0 mm2


PG Phase IIa Patient 13 Case Study   17  MH: PG since August 2020, Psoriasis since 2017Treatment Start: March 2021Previous PG medication: None  Cohort 3: 2400 mg Q2W up to Day 85  exclusion after 9 doses due to delayed availability of pos. baseline TB testing result (no TB activation!)  Concomitant Medication: Adalimumab for psoriasis 40 mg QD since 2017   Day 89, end of treatment visit  PGA = 1  Area: calculation not yet available  Baseline    Area: 1136 mm2  Day 85  PGA = 1   Area: 0.00 mm2  Target ulcer opened in November 2020 while on stable adalimumab


PG Phase IIa Study ResultsSummary and Conclusion  18  Vilobelimab Q2W shows good safety and tolerabilityEvidence of dose-dependent drug activity in PG    No infusion-related reactions observedFor 2 patients, related SAEs were reported:Erysipelas leading to hospitalization (judged as non-related by sponsor) Rash due to delayed hypersensitivity reactionObserved AE profile in line with patients’ underlying diseasesNo dose-related AEs detected  Safety conclusion  Out of 17 evaluable patients at end of treatment visit or day of last drug administration Clinical Remission (PGA ≤ 1): 9 patients (53%)Clinical Response (PGA ≤ 3): 1 additional patient (6%)Slight Improvement (PGA = 4): 7 patients (41%)High dose group shows highest rate of target ulcer closure and clinical remission (85.7%)  Clinical response conclusion          We will meet with FDA to discuss next steps


Vilobelimab Life-threatening Inflammatory Diseases  COVID-19ANCA Associated Vasculitis (AAV)


20  COVID-19 induced Vascular Injury – Potential Role of C5aModel for Proposed Mode of Action of C5a in COVID-19 induced vascular injury  Endothelial damage is induced by SARS-CoV-2 infection which also activates the complement system leading to C5a generation. C5a activates neutrophils via C5aR, leading to increased adherence to endothelial cells and damage through generation of oxidative radicals, granular enzyme release and neutrophil extracellular traps (NETs). C5a induces release of tissue factor from neutrophils & endothelial cells, which promotes coagulation, leading to Fibrin formation. Thrombin, plasmin and other enzymes can further induce direct C5a activation (through direct cleavage of C5), which may establish a viscous circle leading to microangiopathy with thrombosis  Source: InflaRx GmbH  Our hypothesis


Phase II Part ResultsOverview  21  Primary endpoint: No difference detected in improvements between groups in PaO2/FiO2 ratio High variability between patientsConclusion: Endpoint not suitable as response parameterKey secondary and other endpoints - Observed effects with vilobelimab compared to best standard of care:50% lower all-cause mortality rate (13% in vilobelimab group vs 27% for control group)Fewer patients experienced renal impairment assessed by estimated glomerular filtration ratesFaster reversal of blood lymphocytopeniaReduction in tissue damage: Greater lowering of lactate dehydrogenase concentrations Temporary but statistically significant increase in D-dimer levels in first days after vilobelimab administration - potential signal of induction of blood clot lysis  Phase II Study RESULTS*      * Vlaar, A et al. Lancet Rheumatol 2020. https://doi.org/10.1016/S2665-9913(20)30341-6


Critically ill intubated* patients with COVID-19 induced pneumoniaPhase III primary endpoint: 28-day all-cause mortalityOther key endpoints include assessments of organ support, disease improvement on ordinal scalePhase II part completed:Topline results publishedPhase III part fully enrolled: 369 patientsTopline data expected by Q1 2022IDMC recommended continuing the trial at interim analysis (180 patients evaluated)  Design of Phase II/III Study with Vilobelimab in Severe COVID-19  22  * In Phase III part, eligible patients must be early intubated. In the Phase II part, patients were enrolled if either early intubated or dependent on oxygen delivery** SOC includes venous thromboembolism prophylaxis at a minimum and may include other specific recommended treatments for COVID-19 per the locally adopted treatment recommendation           28 days  Vilobelimab + BSC(n=15)  Best supportive care(n=15)      Phase II Part       800mg i.v.   Dosing scheme:  Blinded Interim Safety Analysis after 180 pts    Analysis  Phase III Part     Open-label  Vilobelimab + SOC**(n=90 + 90)  placebo + SOC**(n=90 + 90)  Double-blinded        Day:  1 2  4  15  8  11-13      22                  28 days                    28 days  COMPLETED  800mg i.v.       Continue to full enrollment of 180 +180 patients  ONGOING  STUDY DESIGN    STATUS


Phase II Studies in AAV Results  23  US Phase II Topline RESULTS (n=19)      Primary endpoint met; safe and well-tolerated in patients with AAV Observed TEAEs are reflective of the disease and SOC treatmentAll three treatment groups showed a strong clinical response (50% reduction in BVAS) at week 16Clinical remission (BVAS = 0): higher number & percentage of patients in remission in vilobelimab groups at various timepoints  # of remissions  SOC + combined vilobelimab groups  SOC + placebo  TEAEs: Treatment-emergent adverse events  EU Phase II Topline RESULTS (N=57 TOTAL)      Demonstrated Proof of concept for vilobelimab to reduce use of glucocorticoid (GC) therapy in AAVAchieved comparable efficacy to standard of care GC therapyUse of vilobelimab instead of GC led to a substantially lower observed glucocorticoid toxicityLowest vasculitis damage index (VDI) total score at week 16 in vilobelimab only group


VilobelimabOncology  Cutaneous Squamous Cell Carcinoma (cSCC)


Cutaneous Squamous Cell Carcinoma (cSCC)Phase II Study Underway  25  Inhibition of C5a signaling in the tumor microenvironment may decrease tumor growthCombination of C5a with PD-1 checkpoint inhibition could reverse resistance to PD-1 or PD-L1 inhibitor therapy    POTENTIAL ROLE OF C5A IN ONCOLOGY & cSCC    DISEASE INFORMATION cSCC    C5a induces an immunosuppressive tumor microenvironment C5a promotes metastasesC5a is readily available in the tumor environment and may promote tumor growth directly  Estimated incidence: 15-35 per 100,000 people; expected to increase 2-4% per year; Metastasizes in approximately 2-5% of cases1,2,4Advanced SCC 10-year survival rates <20% with regional lymph node involvement and <10% with distant metastases; Distant metastases have median survival of <2 years1,3PD-1 checkpoint inhibitors pembrolizumab or cemiplimab are FDA approved for locally advanced, recurrent or metastatic cSCC (see FDA labeling)No treatment is available for PD-1 or PD-L1 resistant or refractory patients  1. Stratigos et al., 2015; 2. Burton et al., 2016; 3. Hillen et al., 2018; 4. Li et al, 2015  Arm A: Assess antitumor activity of vilobelimabArm B: Determine maximum tolerated dose (MTD) or recommended Phase II dose (RP2D); Assess antitumor activity and safety profile of vilobelimab + pembrolizumab  Primary Endpoints


INF904New Pipeline Program


BackgroundC5aR and its allosteric inhibitor INF904  27  Nathan Robertson, 2018 NatureHeng Liu, 2018, Nat. Struct. Mol. Biol  Trp213  C5a receptor (C5aR):a 7-transmembrane G-protein-coupled-receptor expressed primarily on granulocytes, mediates the major pathophysiological effects of C5aC5aR proven to be an important drug target with FDA approval of a chemical C5aR inhibitor in AAV in 2021 INF904 binds to a well-known allosteric site in C5aR INF904 has a novel Markush structure US patent was issued in October 2021  C5a  INF904  C5a and INF904      C5a binds to orthosteric binding site on the topINF904 bind to allosteric binding site on the side


INF904Potential for Best in Class C5aR Inhibition  INF904 shows no obvious toxicological findings even in the highest dose groups in required GLP toxicity analyses INF904 shows a high in vitro potency with a desired IC50 (<1nM) in calcium mobilization assayIn vitro analysis of INF904’s effect on CYP3A against Avacopan-like molecule shows significantly less CYP3A4/5 inhibition which play an important role of metabolic clearance of glucocorticoids Oral INF904 shows higher plasma exposures in several in-vivo models vs. Avacopan-like moleculeOral INF904 shows a better potency in in-vivo neutropenia model vs. Avacopan-like moleculeOral INF904 shows therapeutic benefit / efficacy in renal disease models and peritonitis model Regulatory discussions on Phase I program have been initiatedFirst-in-human clinical trial expected to start in H2 2022   Neutropenia in vivo Model    X 3.7  Plasma Concentration Sampled at 8 hours:INF904 = 538 ng/mLAvacopan-like molecule = 119 ng/mL   PROGRAM DETAILS    28


Strategy and Outlook


Strategic Objectives  30  HS: Initiate Phase III program with vilobelimab, incorporating novel endpointPG: Advance vilobelimab towards Phase III based on regulatory guidance     Severe COVID-19: Complete Phase III with vilobelimab; Submit for approval if results are positiveAAV: Discuss next steps for vilobelimab with regulatory authoritiesOncology: Continue to explore clinical application of vilobelimabAdvance INF904 into first-in-human study    Immuno- dermatologyFocus  Additional PotentialUpside  Strong cash balance to pursue these activities: €120.6 million as of September 30, 2021


Winzerlaer Str. 207745 Jena, GermanyEmail: info@inflarx.comTel: +49-3641-508180Fax: +49-3641-508181www.inflarx.com  Jordan ZwickChief Strategy OfficerEmail: IR@inflarx.de                                      InflaRx N.V.  Investor Relations InflaRx N.V.