Jonathan Solomon
Analyst · H.C. Wainwright
Thank you, Marina, and good morning, everyone. The second quarter of 2022 proved to be a highly productive period for our company. We dosed the first patients in our cystic fibrosis program, announced a second collaboration with Boehringer Ingelheim, published an important new research supportive of our inflammatory bowel disease program and technology platform and successfully completed a restructuring to further extend our cash runway.
Let me first provide an update on our cystic fibrosis program. In June, we announced the dosing of the first 2 patients in the company's Phase Ib/IIa study evaluating BX004 with the treatment of chronic respiratory infections in patients with cystic fibrosis. This was clearly a very important milestone for the CF program, and I'm pleased to report that despite the challenges facing many companies with respect to patient recruitment, we continue to make steady progress with respect to enrollment in this study.
As a reminder, BiomX is developing BX004 for the treatment of CF patients with chronic respiratory infections caused by Pseudomonas aeruginosa or PsA, a main contributor to morbidity and mortality in patients with CF. The Phase Ib/IIa study of BX004 is composed of 2 parts. Part 1 will evaluate the safety, pharmacokinetics and microbiologic/clinical activity of BX004 in 8 patients in a single ascending dose and multiple dose design. And provided that the pace of enrollment for the study will continue as expected, we anticipate the results from the first part of the study by the end of the third quarter of 2022.
Part 2 of the study will evaluate the safety and efficacy of BX004 in 24 CF patients randomized to a treatment or placebo cohort in a 2:1 ratio. And results from Part 2 are expected in the first quarter of 2023.
As a reminder, the opportunity to address lung infections in CF remains substantial given both the size of the patient population and how few treatment options are currently available. Between the U.S. and EU alone, there are approximately 70,000 to 80,000 patients living with CF and is estimated that more than 60% of adults with CF are infected with this bacteria. PsA infections are the leading cause of loss of lung function in people with CF. And after patients has been infected with the PsA in their lungs, the infection is exceptionally difficult to fully eradicate.
We are encouraged to see a growing body of clinical research and scientific publications that provide evidence supporting the use of phage therapy for the treatment of lung infections in CF. At the 2021 North American Cystic Fibrosis Conference, researchers from the Yale School of Medicine presented data on 6 patients with multidrug-resistant Pseudomonas aeruginosa were treated with inhaled phage twice daily for 7 to 10 days. The purpose of the study was to interrogate the mechanism by which phage suppressed P. aeruginosa [indiscernible] production and the effect on lung inflammation. Results showed that the phage therapy was safe and showed significant reduction in Pseudomonas aeruginosa titers. In addition, phage therapy also led to an improvement in lung function.
As noted in our past calls, Yale University has been the forefront of developing phage-based treatment to help address multidrug-resistant lung infection in CF patients. And through its ongoing compassionate use study, valuable clinical evidence is being generated to support this treatment approach.
In June 2022, researchers from UCSD and other academic institutions published a paper in the journal, Clinical Infectious Disease, entitled Stage Therapy of Mycobacterium Infections, compassionate use of phage in 20 patients with drug-resistant mycobacterial disease -- in the study, Mycobacterium [indiscernible] from 200 culture positive patients with symptomatic disease were screened with phage susceptibilities. One or more lytic phage were identified for 55 isolates.
Phage therapy was then administered to 20 patients on a compassionate use basis, and patients were monitored for adverse reactions, clinical and microbiological responses, the emergence of phage resistance and phage neutralization in serum sputum and bronchoalveolar lavage fluid. Results from the trial showed favorable clinical or microbiological response in 11 patients, and no adverse reactions were attributed to therapy in any patients regardless of the pathogen phage administered or they're out of delivery.
Awareness surrounding the BiomX CF program is also continuing to grow. On May 12, we hosted a KOL webinar to discuss the treatment landscape for CF patients with chronic lung infections and the potential of BX004 to address patients with chronic PsA infections. The webinar featured presentations from key opinion leaders, Dr. Dave Nichols and Dr. Saima Aslam, who discussed phage therapy, the current treatment landscape and the unmet medical need in CF patients with chronic PsA pulmonary infections. We then presented BX004 as a potential treatment solution, providing a review of the phage candidates preclinical activity and an overview of the ongoing clinical development plan. A recording of the webinar is accessible through the Investors section of our corporate website.
We believe that enthusiasm appears to be building for exploring the potential phage therapy in treating CF patients struggling with multidrug-resistant bacterial infections. With so few treatment options available, we are very pleased to see a growing body of clinical evidence and published research that points towards the potential of phage therapy to play an important role in helping CF patients combat these persistent difficult-to-treat infections. Given a significant unmet medical need for these patients, BX004 program remains our clinical development priority at BiomX, and we look forward to presenting our initial clinical findings in the near future.
Turning to our recent partner activity. We were also very pleased to announce the second collaboration with Boehringer Ingelheim during the quarter. Under the new collaboration agreement, BiomX will utilize its XMarker microbiome-based biomarker discovery platform to identify biomarkers for a pathogenic bacterium thought to be associated with IBD. Such biomarkers could help identify IBD patients that would benefit from the potential therapies targeted at the microbiome. As a reminder, we entered our first collaboration with Boehringer Ingelheim back in September 2020, which focuses on identifying biomarkers associated with patient phenotypes in IBD.
Collaborative research is an integral part of the BiomX culture. And industry-based partnerships such as those with BI will likely generate important new insights to help direct our future research efforts in IBD. But we also seek to build strong relationship with academic and independent research institutes. And earlier this month, we're proud to announce the publication of a research paper in the renowned scientific journal, Cell, entitled targeted suppression of human IBD-associated gut microbiota commensals by phage consortia for the treatment of intestinal inflammation.
The research was conducted across several organizations including scientists on BiomX, the Weizmann Institute of Science and [indiscernible] University School of Medicine. The paper presented positive results from a proof-of-concept assessment in preclinical model of IBD. More specifically, researchers demonstrated proof-of-concept assessment of Klebsiella pneumoniae targeting phage by generating an orally administered lytic 5-phage combination products specifically designed to target sensitive and resistant IBD-associated KP clade members through a distinct mechanism. The lytic 5-phage treatment enabled effectively KP suppression in the colitis-prone mice and drove attenuated inflammation and disease severity. Collaborative research with our academic partners can provide enviable insights and external scientific validation for a company's program.
In April, we announced the publication of a paper in the journal, Bioinformatics. The research was conducted by scientists in BiomX and specifically relates to the development of an algorithm named Exodus that has enabled us to consistently generate hyper-accurate next-generation sequencing data for a single-mix analysis, thereby providing a more detailed genetic understanding of our phage product candidates. Importantly, Exodus is now being leveraged across our entire R&D platform. And because of the open source nature of the algorithm, other researchers external to BiomX can also use this algorithm to conduct analysis on various genome-related projects.
Turning to Corporate news. We announced a restructuring during the second quarter which allowed us to further extend our cash runway through until at least mid-2024. Obviously, such decisions are never easy. But given the prevailing conditions within the capital markets, we must ensure that our company is well prepared with more than sufficient resources to navigate through this challenging period.
I'd now like to turn the call over to Marina Wolfson, our Chief Financial Officer, to cover our financial results for the quarter.