Acurx Announces Positive Comparative Microbiology and Microbiome Data for Ibezapolstat from Phase 2b Clinical Trial in CDI Patients

Acurx Pharmaceuticals Ibezapolstat Phase 2b Clinical Trial Success

Acurx Pharmaceuticals, Inc. (NASDAQ: ACXP) (“Acurx” or the “Company”), a late-stage biopharmaceutical company developing a new class of small molecule antibiotics for difficult-to-treat bacterial infections, today announced positive comparative microbiology and microbiome data for ibezapolstat, its lead antibiotic candidate, from the Company’s recently completed Phase 2b clinical trial in patients with CDI.  Data showed that ibezapolstat outperformed vancomycin, a standard of care to treat patients with CDI, with eradication of fecal C. difficile at Day 3 of treatment in 15 of 16 patients (94%) versus vancomycin which had eradication of fecal C. difficile in 10 of 14 patients (71%).  In addition, ibezapolstat, but not vancomycin, consistently preserved and allowed regrowth of key gut bacterial species believed to confer health benefits including to prevent CDI recurrence.  Further analyses will be forthcoming Q1 2024, as data become available, regarding other endpoints from the Phase 2b trial, including Extended Clinical Cure (ECC) data up to 94 days.  Preparation is underway for meetings with FDA, European Medicines Agency and other global regulatory agencies and advancement to international Phase 3 clinical trials.

The Company also announced that a scientific poster will be presented on January 18, 2023 at the Gulf Coast Consortia Antimicrobial Resistance (AMR) Conference in Houston, Texas by Kevin Garey, PharmD, MS, Professor and Chair, University of Houston College of Pharmacy, the Principal Investigator for microbiology and microbiome aspects of the ibezapolstat clinical trial program and Acurx Scientific Advisory Board member.  The poster will show comparative data details from the Phase 2b clinical trial entitled: “A Phase 2, Randomized, Double-Blind Study of Ibezapolstat Compared with Vancomycin for the Treatment of Clostridioides difficile Infection.”    

After the presentation, the poster will be posted on Acurx website:

According to Dr. Garey: “These results help validate our ongoing scientific investigations into the anti-CDI recurrence effects of ibezapolstat. Our microbiologic findings show that markedly fewer patients treated with ibezapolstat had persistent C. difficile compared to patients treated with vancomycin. He further stated: “Preservation of key health-conferring native gut bacteria, such as Firmicutes, in patients treated with ibezapolstat has now been shown consistently during all clinical studies. These results correlate with prior findings by showing superior preservation of key native gut bacteria compared to vancomycin in CDI patients. Preservation of native gut bacteria during treatment for CDI is believed to be a key component for preventing recurrence of CDI. These findings will need to be further validated in the phase 3 studies but the results to date support the importance of this new class of antibiotics with a novel mechanism of action that does not target native gut bacteria.”

Robert J. DeLuccia, Executive Chairman of Acurx, stated: “These new comparative data are very important and timely to enhance our data package for an end of Phase 2 FDA Meeting which is targeted for second quarter this year. He further stated: “Parallel preparations continue on schedule for Phase 3 clinical trials start up later this year, including timely availability of clinical trial supply.

David P. Luci, President & CEO of Acurx, stated: “Ibezapolstat continues to demonstrate success compared to a standard of care, oral vancomycin, to treat patients with CDI. We anticipate that favorable differentiation between the two therapeutic options will continue to be shown in Q1 2024 including extended clinical cure and additional microbiome comparison data. We expect to leverage this success in a $1 billion plus US CDI global market as we move forward with an international Phase 3 clinical trial mandate.” He added: “The Company also anticipates its price point for ibezapolstat, if approved, could meet or beat other antibiotics recommended for use in treating patients with CDI, thereby providing the whole package of clinical comparability with microbiome health, safety and cost for patients with this life-threatening disease.”


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