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BVXV: Phase 3 Trial of M-001 Underway…

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By David Bautz, PhD



Business Update

First Subject Enrolled in Phase 3 Trial of M-001

BiondVax Pharmaceuticals,Ltd. (BVXV) is a biopharmaceutical company developing a universal influenza vaccine (M-001) designed to protect individuals from all strains of influenza. The company’s strategy for commercializing M-001 involves testing it in a pivotal Phase 3 program as a standalone influenza vaccine to assess its clinical efficacy. The first Phase 3 trial will be conducted in Europe and the company has received feedback about the trial design and approval to conduct it from the European Medicines Agency (EMA). The EMA also stated that “a single pivotal efficacy trial that provides a robust demonstration of efficacy against laboratory-proven influenza like illness (ILI) could suffice for an approval”. In addition, the company is working to align the Phase 3 plan with FDA requirements.

On August 8, 2018, the company announced that the first subject was enrolled in the trial. It is being conducted in Eastern Europe due to the fact that there are either no recommendations for getting the yearly influenza vaccine or it is an out of pocket expense, thus influenza vaccination rates are low and it is much easier to enroll sufficient numbers of subjects who have not been previously immunized with the yearly influenza vaccine. Enrollment is going well so far and we anticipate all subjects in Cohort One will be enrolled by the end of November 2018.

The general outline for the Phase 3 trial is shown below. The company is planning to enroll 9,630 patients and will focus on patients over the age of 50, with half of the patients being 65 years or older. The study is being conducted in two cohorts over the next two influenza seasons. There is a flexible design to allow for adjustment in subject enrollment based on the overall rate of influenza infection (the study will remain blinded). If this year is a mild influenza season then additional subjects may be necessary in Cohort Two to properly power the study. Unblinding of the study following Season 2 will only occur if there are a sufficient number of total influenza cases in both Cohort One and Two. The primary outcome of the trial will be safety and clinical efficacy of M-001, defined as a reduction in illness rate and severity.

View Exhibit I

New Manufacturing Facility

On August 20, 2018, BiondVax announced the company has relocated to the newly constructed mid-size commercial scale manufacturing facility in Jerusalem, Israel. The facility is located in Jerusalem Bio-Park on the Hadassah Medical Center Hebrew University Ein Kerem campus. It is approximately 20,000 square feet that includes offices, laboratories, and GMP manufacturing suites that could potentially produce up to 40 million doses of M-001 in bulk and up to 20 million single dose syringes. The facility was constructed with funds from the company, the loan agreement with the European Investment Bank (EIB), and the Israeli Ministry of Economy.

Mark Germain Joins Board of Directors

On June 28, 2018, BiondVax announced Mr. Mark Germain has joined the company’s Board of Directors as Vice Chairman. Mr. Germain is currently Managing Director at the Aentib Group and is also a director on the board of Pluristem Therapeutics, Inc. His many years of experience in the biotech sector include founding, serving on the Board of Directors, and/or investing in over 20 companies and he has been involved in arranging partnerships, acquisitions, and financings, experience that should prove quite valuable to BiondVax as it embarks on the Phase 3 program for M-001.

Financial Update

On August 22, 2018, BiondVax announced financial results for the second quarter of 2018. As expected, the company did not report any revenues during the quarter. The company had operating expenses of $8.4 million in the second quarter of 2018, which was comprised of $8.0 million in R&D expenses and $0.4 million in G&A expenses. R&D expenditures increased approximately $7.3 million compared to the same time period in 2017 due to payments made to the contract research organization conducting the Phase 3 trial and for the manufacturing facility. Nearly all of the manufacturing facility costs have now been paid. We anticipate expenses returning to a lower level for the remainder of 2018.

As of June 30, 2018, BiondVax had cash and cash equivalents of approximately $10.2 million, which does not include one of the two tranches of €6 million that was received from the €20 million loan agreement with the EIB. As a reminder, the non-dilutive financing agreement with the EIB is structured as a 0% fixed interest rate loan. We estimate that BiondVax currently has enough capital to fund operations through the end of 2019. The company will need additional funding to get through the end of 2020 and the end of the Phase 3 trial, however there are plenty of dilutive and non-dilutive options available and with a number of strong, long-term investors (including Marius Nacht’s aMoon fund) we don’t foresee the company having a problem raising the necessary capital at attractive terms.

Background on M-001

BiondVax is developing the M-001 vaccine, a synthetic peptide-based protein that targets both existing and future seasonal and pandemic strains of the influenza virus. The vaccine targets conserved regions of Type A and B influenza viruses such that M-001 could be considered a “universal” influenza vaccine, capable of offering immunological protection against all strains of the influenza virus.

M-001 is composed of nine peptides that are believed to be common to most known influenza strains in existence, in part because these peptides seem to be critical for the virus’ ability to infect a host cell. They are derived from hemagglutinin (HA), matrix 1 (M1) and nucleoprotein (NP) viral proteins and are arranged as triplicates into a single recombinant protein easily manufactured in bacteria. HA is an antigenic glycoprotein found on the surface of influenza viruses and is also the main constituent for a number of seasonal influenza vaccines. However, the peptides from HA in M-001 are derived from the inner parts of the protein where little to no variability between strains exists. M1 is a matrix protein that forms a layer under the patches of the viral cell membrane that contain HA, NA, and M2 proteins, and is responsible for mediating the encapsulation of RNA-nucleoprotein complexes into the membrane envelope (Sha et al., 1997). NP is a structural protein that encapsidates the viral RNA inside the virus. The sequence of each of the peptides is shown below, along with the order in which the peptides are arranged in the full-length recombinant protein.

View Exhibit II

The peptides were selected based upon their ability to elicit either a B- or T-cell immune response and each of them has the ability to bind to a wide array of human leukocyte antigen (HLA) proteins (both Class I and Class II), which are responsible for presenting peptides to the immune system. Some may question the use of peptides from proteins located inside the virus, however there is a strong rationale for their use. It has long been known that a mild influenza infection in animals provides protection against a subsequent, more severe challenge with a virus harboring different HA and NA (Yetter et al., 1980). This effect appears to be mediated by both CD4+ and CD8+ T-cells that recognize conserved regions on viral proteins (Furuya et al., 2010). The CD4+ T-cells that are specific for conserved internal viral antigens also potentiate antibody responses to the HA of subsequently encountered viruses (Scherle et al., 1986). The end result is that immunizing with conserved internal viral antigens results in an increased immunological response to infection following subsequent exposure to influenza viruses.

Previous Clinical Trial Results

M-001 had been tested in 698 participants through six different clinical trials, with the details presented in the following chart. In each of the trials, the vaccine was shown to be safe and able to induce a robust immune response.

View Exhibit III

BVX-002 (Atsmon et al., 2012): This was a single-center, randomized, placebo controlled, single blind first-in-human study to examine the safety and immunological response to M-001 in healthy adults age 18-49. For safety purposes, three subjects were dosed once with 0.125 mg of M-001 and monitored for 7-9 days before the rest of the patients were administered the planned doses. There were four dosing cohorts, and within each cohort subjects were randomized in a 2:1 fashion to receive either 0.25 mg or 0.5 mg M-001 (n=10) or placebo (n=5), with or without adjuvant. The results showed that M-001 was well tolerated with only mild and moderate adverse events (AEs), with no significant difference between vaccine and placebo recipients for AEs. A robust humoral (antibodies to M-001) and cellular (PBMC proliferation to viral peptides) immune response was noted for participants immunized with M-001, and while there were greater humoral responses in patients immunized with M-001 plus adjuvant, there did not appear to be a difference in cellular response between subjects dosed with adjuvant and those without.

BVX-005 (Atsmon et al., 2014): This was a two-center, randomized, placebo controlled study in a total of 120 elderly volunteers (age 65+). The subjects were randomized 1:1:1:1 into four parallel groups to receive either 1) two sequential non-adjuvanted 0.5 mg M-001, or 2) a single non-adjuvanted 0.5 mg M-001, or 3) a single adjuvanted IM injection of 0.5 mg M-001, or 4) one placebo injection. All participants subsequently received the seasonal trivalent influenza vaccine (TIV) three weeks following the last M-001 or placebo injection. The primary outcome measures were safety, tolerability, and tolerance of M-001 with secondary outcomes being humoral and cellular immune responses. The results showed that priming with M-001 enhanced seroconversion towards all three strains in that season’s influenza vaccine (denoted on the y-axis in the figure below). The following figure shows the percentage of patients that tested positive for seroconversion (defined as a mean fold increase in anti-HA antibody levels of ≥ four-fold from levels detected in sera collected on day 0, and reaching a level of ≥1:40 post-immunization) and seroprotection (defined as the number of participants per cohort expressing anti-HA antibody levels of ≥1:40 post-immunization). Addition of an adjuvant did not appear to offer any additional immunostimulatory effect.

View Exhibit IV

In 2015, a new ‘Swiss’ epidemic influenza strain (H3N2: A/Switzerland/9715293/13) emerged that did not exist in 2011, which was when the BVX-005 trial took place and the participants in the trial were immunized with M-001. Blood serum samples from the participants in the BVX-005 trial were exposed to the ‘Swiss’ influenza strain, with results showing that greater than 60% of the M-001 vaccinated group had seroprotection against this new Swiss strain, compared to only 10% of those immunized with just the seasonal vaccine. This suggests that M-001 may offer a broader, long-lasting immune response not just to strains currently in existence, but to future strains that do not even exist yet!

View Exhibit V

BVX-007: In 2017, BiondVax announced results from the company’s Phase 2b clinical trial of M-001. The trial, which was funded through a grant from the European Union and was conducted in conjunction with the European UNISEC Consortium, enrolled a total of 219 participants aged 18 to 60 years. Each participant received two injections of 0.5 mg M-001, 1.0 mg M-001, or placebo prior to a partial dose of avian H5N1 pandemic vaccine.

The trial hit both primary endpoints for safety and immunological response. To test for immunological response, T cell activation was measured in in vitro assays through the release of the cytokines interleukin (IL)-2, interferon (INF)-γ, and tumor necrosis factor (TNF)-α. The following figure on the left shows that statistically significant T cell activation was found in participants that received 1.0 mg M-001 when compared to the placebo group. The following figure on the right shows that the there was a significant increase in T cells that expressed two cytokines, which have been shown to be functionally superior to single-cytokine producing T cells (Kannanganat et al., 2007).

View Exhibit VI

The study’s secondary endpoint evaluated antibody response to avian H5N1 pandemic vaccination. In one of the four H5N1 strains tested there was a statistically significant increase in antibody response in those receiving M-001.


As a stand-alone universal vaccine, we model for M-001 to have peak market share of 25% in the U.S., which leads to peak revenues of approximately $750 million, and peak revenues of approximately $300 million overseas. We believe peak revenue forecasts for >$1 billion are justified based upon the clear advantages that M-001 has over the seasonal influenza vaccines, particularly in regard to efficacy without any limitations brought about by whichever influenza strain happens to be circulating. With a 16% discount rate and a 50% probability of approval, we value M-001 as a standalone vaccine at approximately $229 million.

Our model also includes the stockpiling of M-001 as a pandemic influenza vaccine. The critical workforce in the U.S. is approximately 15% of the population (20 million people), and 1/3rd of the stockpile is replaced annually (given a shelf-life of three years). At $12 per dose that represents a $240 million annual opportunity. We apply a 16% discount rate and a 50% probability of approval to arrive at a net present value for M-001 as a primer for a pandemic vaccine of $100 million.

Combining the net present value for M-001 as a stockpiled and standalone vaccine along with the company’s current cash position and expected operating burn of leads to a valuation of $37 per share.

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