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Acurx Pharmaceuticals (ACXP) Q2 FY26 earnings call: guidance and Q&A

Earnings call· Jun 2026 (Q2 FY26)· Health Care· Aug 14, 2026

Source: earnings call transcript

Executive summary

Acurx Pharmaceuticals Q2 FY26 — FDA Guidance for Phase III and Funding Secured

Acurx Pharmaceuticals reported on its Q2 FY26 results, highlighting positive FDA guidance for its ibezapolstat development program, including the potential for a single pivotal Phase III study for acute CDI and recurrence prevention. The company also secured significant funding to support its PATHFINDER trial and operations for over a year, while advancing its pipeline with new partnerships and preclinical data. However, funding for the larger ASPIRE Phase III trial remains a key focus.

Highlights

5
  • FDA open to further discussion on NDA after single Phase III trial (IBZ-ASPIRE) and PATHFINDER study, especially if clinical efficacy is robust.

  • Received FDA conditional acceptance and USPTO Trademark Allowance for ibezapolstat's brand name, Syfbezi, in August 2026.

  • Secured funding of $7.1 million from a registered direct offering and $0.8 million from an Equity Line of Credit, ensuring operations for at least 1 year and funding the PATHFINDER trial.

  • New scientific partnership with Leiden University Medical Center in July 2026 to advance DNA pol III C inhibitors for novel antibiotics against Gram-positive pathogens.

  • Preclinical data showed ibezapolstat allows beneficial gut microorganisms to repopulate and is significantly more effective at killing C. diff than vancomycin and fidaxomicin in biofilm models.

Concerns

3
  • Phase III ASPIRE trial for acute CDI and recurrence reduction is pending appropriate funding from public, private, or partnership sources.

  • Net loss for Q2 FY26 was $2.3 million, compared to $2.2 million in Q2 FY25.

  • R&D expenses increased by $0.6 million to $1.1 million in Q2 FY26 due to manufacturing and consulting costs for the new recurrent CDI trial program.

Guidance & targets

CategoryTargetConfidence
PATHFINDER trial enrollment
Anticipated to start in the fourth quarter
medium materiality
High

Deals & partnerships

Leiden University Medical Center Continuation of scientific partnership to advance development of DNA pol III C inhibitors.

This new partnership builds on previously reported successful results from an innovative research grant. It will enable further mechanistic research into DNA pol III C inhibition to accelerate the development of novel new antibiotics that are systemically active against a wide range of Gram-positive pathogens resistant to currently available antibiotics. It also aims to generate the first-ever 3D structure of pol C from methicillin-resistant Staphylococcus aureus in complex with an Acurx inhibitor.

Risks & headwinds

Funding for Phase III ASPIRE trial Ongoing

Phase III clinical trial program with ASPIRE for acute CDI and recurrence reduction is pending appropriate funding from public or private sources or partnerships.

Mitigation:Company is pursuing several initiatives to secure this funding and will report progress on future updates.

Challenging industry sector Ongoing

Not quantified

Mitigation:Company remains confident in navigating challenging times while ibezapolstat's competitive profile continues to evolve and strengthen.

What to watch in Q3 FY26

PATHFINDER trial enrollment

Q4 FY26
Current Start-up activities underway
Target Enrollment initiated

Why it matters

Successful enrollment is a key step for the recurrent CDI trial, which could provide significant supportive data for FDA evaluation and potentially open an LPAD pathway.

As you may recall from our previous announcements, we've begun start-up activities to conduct the 20-patient groundbreaking PATHFINDER study in mostly recurrent CDI with enrollment anticipated to start in the fourth quarter.

Find out whether ACXP delivers this. Inve re-checks your case every morning.

Q&A highlights

Does the company have enough API for PATHFINDER and ASPIRE trials, and what is the status of ibezapolstat manufacturing?

The company has plenty of API and formulated product ready for the PATHFINDER trial. They are also poised to have enough API manufacturing with appropriate dating for the ASPIRE trial.

“We stand on -- and we have plenty of API and also the formulated product is all ready to go to support the PATHFINDER trial, and we're poised to have enough API manufacturing with appropriate dating to start the ibezapolstat ASPIRE trial as well.”

asked by Matthew Keller · answered by Robert DeLuccia

2 min read 6 chapters

Detailed narrative

FDA Meeting and Phase III Strategy

Acurx met with the FDA in July 2026 to discuss its plan for a single Phase III study (IBZ-ASPIRE) in acute CDI. The FDA indicated openness to further discussion on the totality of evidence, including the PATHFINDER study, at a pre-NDA meeting, particularly if clinical efficacy results are robust. This suggests a potential pathway for approval for both CDI treatment and prevention of recurrence.

Ibezapolstat Brand Identity

In August 2026, the company received FDA conditional acceptance and USPTO Trademark Allowance for its proprietary brand name for ibezapolstat, "Syfbezi," marking an initial step towards commercial identity and international registration. These milestones will form the basis for the commercial identity as the company prepares to advance towards its international Phase III registration program and ultimate commercialization.

Scientific Partnerships and Preclinical Research

Acurx announced a continuation of its scientific partnership with Leiden University Medical Center in July to advance DNA pol III C inhibitors. This collaboration aims to develop novel, systemically active antibiotics against Gram-positive pathogens and generate the first-ever 3D structure of pol C from MRSA in complex with an Acurx inhibitor to advance discovery of new compounds.

Microbiome Sparing Effects and Biofilm Efficacy

Scientific data presented in July by Dr. Kevin Garey's team from the University of Houston College of Pharmacy demonstrated that ibezapolstat allows beneficial gut microorganisms to repopulate the microbiome, preventing recurrence. In addition, ibezapolstat and fidaxomicin were superior in biofilm experimental models, with ibezapolstat significantly more effective at killing C. diff than vancomycin and fidaxomicin.

Funding and Financial Position

The company closed a registered direct offering of up to $7.1 million in April, issuing 825,085 shares or prefunded warrants at $3.03 per share, and a concurrent private placement of unregistered short-term warrants to purchase up to 1.65 million shares at an exercise price of $2.78.

This, combined with $0.8 million from an Equity Line of Credit, ensures funding for the PATHFINDER trial and operations for at least one year.

Patent Portfolio and Regulatory Designations

Acurx has secured 6 U.S. patents and 10 international patents protecting ibezapolstat and the ACX-375C program. A new patent was issued in Q1 related to ibezapolstat's use in treating CDI, reducing recurrence, and improving gut microbiome health. Ibezapolstat holds FDA QIDP and Fast Track designations for CDI treatment, and SME status in the EU.

Summary of the company's earnings call; see how call summaries are prepared. Not investment advice.