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SBOT: Q2 2018 Financial Results/Update: Neovacs reiterates Ph2 Lupus data expected in June

05/11/2018
By Brian Marckx, CFA

NASDAQ:SBOT

Stellar (NASDAQ:SBOT) reported financial results for their fiscal 2018 second quarter ending March 31, 2018. Revenue, which was just about dead-on with our estimate, remains at relatively very low levels, reflecting the conclusion of several mid-stage clinical trials that SBOT supported via supply of KLH. But with development progression to (larger) later-stage studies, we continue to expect SBOT’s revenue to return to growth. Additionally, an eventual supply agreement for a commercialized product (potentially such as Neovacs’ IFNa-Kinoid candidate) would likely significantly steepen the revenue curve.

Q2 revenue was $64k, inline with our $68k estimate. This compares to $63k and $21k in Q2 ’17 and Q1 ’18, respectively. As we have noted in the recent past, while revenue has largely been negligible, we had anticipated as much given that current demand is dependent on timing of activity of the company’s clinical trial customers. Revenue of the last several quarters has largely reflected the lull between the conclusion of earlier-stage trials and commencement of later-stage trials. Importantly, it appears most of the clinical programs that SBOT has supported over the recent past continue to successfully progress to later-stage studies. As later-stage studies typically enroll a greater number of patients, SBOT’s revenue opportunity increases as well. Successful conclusion of later-stage studies also improves the chances that a drug candidate eventually reaches commercialization and SBOT’s opportunity to support the approved product.

Current customers, including Neovacs and Araclon represent potential opportunities to increase KLH sales with progression of their clinical trials to later stages. Both of these companies are expected to have important clinical-program related milestones during 2018, including final data read-out from Neovacs’ phase IIb Lupus study which is expected in June (Neovacs reiterated this timeline in a March 30, 2018 press release). Our modeled step-up in revenue late in fiscal 2018 assumes additional developmental activity from current customers as a result of clinical progression. Meanwhile, Amaran/OBI could be moving their metastatic breast cancer candidate into phase III studies. We also think the recent clinical success of certain immunotherapies (including two cancer therapies which recently gained FDA approval) is likely to further fuel investment dollars into the space and potentially facilitate additional opportunities for SBOT.

And while revenue has been meager as of late, management has done a good job of controlling expenses and cash burn as they wait for the next phase of customers’ clinical programs to commence. Fiscal 2017 operating expenses were $4.9M and a similar run-rate continued through 1H 2018. Cash burn for operating activities has also remained largely flat. Cash used in operating activities was $4.7M in 2017 and $2.5M through the first six months of fiscal 2018. Another $206k was used for the purchase of PP&E (likely related to the incremental capacity-related infrastructure build-out) in 1H ‘18.

As we have previously anticipated we expect SBOT will likely look to raise some additional capital. In mid-March they filed an S-1, registering for sale up to $8M in common shares/warrants and in early May they effected a 1-for-7 reverse split (note that S-1 filing does not obligate the issuer to raise). In addition to capital markets-related financings, SBOT will continue to consider licensing opportunities to aid in funding operations. In late-January 2018 the company announced that Deborah Aghib, Ph.D was joined their board of directors. SBOT expects to leverage her extensive experience focused on investments and business and corporate development in the life sciences industry.

Q2 net loss and EPS were $1.4M / ($0.90), compared to $1.1M / ($0.76) in the prior-year comparable period (EPS figures are adjusted for the reverse split).

Operational Highlights:

Recent highlights on the operational front include

• Enrollment of Neovacs' phase IIb Lupus study completed in July 2017
     • February 2018: IDSMB issues positive final review of phase IIb Lupus study
     • Neovacs expects final data results in June 2018
• Neovacs IND approved, allowing for phase IIa dermatomyositis study to expand to U.S.
• Neovacs announced positive results from Type I diabetes POC study, preclinical development continues
• OBI Pharma indicates progress has been made towards pursuit of Ph III studies with OBI-822
• AXON's phase II Alzheimer's study completed enrollment in July 2017
• Araclon commenced phase II Alzheimer’s study

‣ …in early March 2017 SBOT announced that they entered an exclusive multi-year agreement with Amaran Biotechnology whereby Stellar will supply KLH for Amaran’s partners (i.e. OBI’s) clinical trials. While this came as little surprise given the prior two-year collaboration agreement between the two relative to optimizing Amaran’s manufacturing processes for the OBI-822 candidate and our expectation that SBOT would remain the KLH supplier to Amaran/OBI, it was nonetheless important as it makes it ‘official’. The agreement, per Stellar’s press release, commits Amaran to purchase Stellar KLH in amounts necessary to meet its requirements for vaccine production. As we explain below, we continue to eagerly await updates on OBI’s clinical programs, the most recent public information surrounding which were announced in January 2017.

As a reminder, OBI's lead candidate, OBI-822 (Adagloxad Simolenin), had been in mid-to-late stage clinical testing in the U.S., S. Korea, India, Hong Kong and Taiwan for the treatment of metastatic breast cancer. It was also in a phase II physician-initiated clinical trial in Taiwan for the treatment of ovarian cancer (no recent updates have been announced related to the ovarian cancer program either). OBI-822 utilizes KLH as a carrier protein for the carbohydrate antigen Globo-H, which is often expressed by cancer cells.

In February 2016 OBI announced that top-line data of the phase 2/3 metastatic breast cancer study did not meet the primary endpoint of progression-free survival. Results were presented in June at ASCO 2016 in Chicago. But, as patients who did show an immune response demonstrated statistically significant progression-free survival versus placebo, coupled with the secondary endpoint of overall survival trending towards statistical significance and no safety issues reported, OBI noted in their February 2016 press release that they expected to forge ahead with a phase III study. But, as we also note below, it is unclear what the actual status is given the less-than-consistent messaging delivered from OBI’s press releases since early 2017.

In a January 20, 2017 press release OBI announced that they met with the FDA for its end-of-phase II meeting and “based on the discussion with the FDA, OBI Pharma plans to prepare its phase III protocol”. Just days later (January 24) OBI announced that they received approval from the China FDA to conduct a phase III clinical trial of OBI-822 which OBI notes can be used in a future BLA application.

And while Europe was not previously mentioned as a possible location for further development of OBI-822, OBI’s website currently states that the “Company held its End of phase 2 (EOP2) Meeting with the US Food and Drug Administration (FDA) in January 2017, and received a written reply from the European Medicines Agency (EMA) regarding questions related to the Company's design of its global phase III clinical trial for Adagloxad simolenin. The Company will amend its global phase III clinical trial accordingly.”

We uncovered the latest tid-bit of information from OBI’s January 2018 investor presentation, developed for their attendance at this year’s JP Morgan Healthcare Conference. While contents of the presentation do not provide any additional detailed insight into outcomes with OBI’s interactions with the various regulatory agencies, they do support the company’s previous press releases (regarding positive outcomes of the EOP2 meetings, including CFDA approval to conduct a phase III study) and also clearly indicate that OBI believes (or at least hopes) that there is a viable path to move into phase III studies (in the U.S. and Europe, in addition to China). In addition, the presentation includes a slide of OBI’s proposed phase III trial design.

But, to say the least, OBI’s messaging surrounding OBI-822 continues to be confusing. Additionally, the announcements regarding moving into phase III in China and preparing a phase III protocol for U.S. FDA were somewhat surprising given the missed endpoints in phase 2/3. So, while the status of OBI’s clinical programs is still quite ambiguous, if and when there is additional forward progress, it should provide more insight into related potential incremental revenue to Stellar given the recently consummated exclusive multi-year KLH-supply agreement with Amaran (for OBI’s studies). And while OBI-822 was also in a phase II study for ovarian cancer, there has also not been any recent updates on that program.

Given the uncertainty as to the status of OBI-822, we have removed estimated contribution to SBOT for supplying KLH to a phase III program – we note, however, that our assumptions are subject to change based on news flow and future potential developmental status updates on this drug candidate.

Neovacs announced in early February 2017 that they will pursue a Type I diabetes program for their IFNa-Kinoid compound. This is in addition to the ongoing Lupus program (phase IIb results anticipated in June 2018) for which SBOT has been supplying KLH. Neovacs made the decision to pursue Type I diabetes following positive results of a mouse model indicating high immunogenicity of IFNa-Kinoid. Similar to Lupus, Type I diabetes is an autoimmune disease characterized by the overexpression of IFNa. In December 2017 Neovacs announced positive initial results from their ongoing Type I diabetes proof-of-concept trial, that they would continue with preclinical development and have a goal to initiate clinical programs in the future for Type I diabetes. Neovacs had previously indicated that they hoped to begin clinical studies sometime in 2018, although it is unclear whether that timeline is still achievable.

Assuming this program continues to successfully move forward, we would expect SBOT would be supplying KLH for these Type I diabetes studies as well. U.S. prevalence of Type I diabetes is estimated at approximately 2M people, slightly more than the ~1.5M Americans believed to have Lupus. So, while it is much too early to make any assumptions regarding the potential additional demand for KLH that a commercialized Type I diabetes immunotherapy may generate, it is worth recognizing that the patient population and potential future opportunity for SBOT is sizeable.

And, as a reminder, Neovacs has also made significant recent progress in their Lupus program. In 2011 IFNa-Kinoid completed a phase I/IIa study (n=28) for Lupus. Results showed IFNa-Kinoid was well tolerated and patients experienced a strong immune response with a significantly higher production of binding antibodies compared to TNF Kinoid in humans. A phase IIb study, which had originally expected to include approximately 166 patients and began patient enrollment in September 2015, has been ongoing in Europe, Latin America and Asia. In April 2016 Neovacs received IND approval from FDA to extend the study to the U.S. which also prompted an increase in total enrollment (in 20 countries) and expanded the number of sites from 5 to 15. In July 2017 the study completed enrollment (n=185).

In November 2016 Neovacs announced that they enrolled the first patient in the U.S. Importantly, in December 2016 Neovacs announced that FDA granted Fast-Track status to this IFNa-Kinoid Lupus candidate. Fast-Track is granted to candidates that address serious diseases which are not well controlled with existing therapies. Fast-Track, which aims to facilitate faster time to approval, allows for seamless cooperation with FDA as well as priority review. As such, this could facilitate eventual approval in the U.S. market.

In February 2017 the study’s Independent Data and Safety Monitoring Board (IDSMB) issued a favorable safety-related opinion, allowing the study to continue. Subsequent reviews elicited similarly positive opinions (i.e. no safety concerns and no required modifications to the study) from the IDSMB, including one in July 2017 and, most recently, one in mid-February 2018. Per Neovacs’ March 31, 2018 press release, they expect final study results in June 2018.

While we do not think commercialization for Lupus in the U.S. is likely to happen within the next few years, it’s possible that a Lupus indication could be a sooner event in S. Korea. In mid-April 2016 Neovacs announced S. Korean health authorities approved an IND for their phase IIb lupus study. Importantly S. Korea is the only OECD country in which lupus is considered an orphan disease. As such Neovacs expects to file for orphan designation, granting of which could mean Neovacs may be able to launch IFNa-Kinoid commercially in S. Korea without the need to conduct a phase III study. Neovacs has already started preparing for a potential commercial launch by partnering with Chong Kun Dan Pharmaceuticals, a S. Korean pharmaceutical (immunotherapies) company.

Neovacs continues to expand the potential geographic footprint for their Lupus candidate and in July 2017 signed an exclusive licensing agreement with Centurion Pharma whereby that company will lead development and commercialization of the compound in Turkey.

And there are other signs of Neovacs’ confidence in their Lupus candidate as the company has made other recent preparations to scale up production. This includes the November 2016 announcements that they acquired interferon alpha manufacturing technology (from Amegabiotech) and signed a production partnership (with 3P Biopharmaceuticals) for the manufacture of interferon alpha. These agreements put in place an important piece for Neovacs to be able to manufacture IFNa-Kinoid in commercial scale.

Neovacs is also developing IFNa-Kinoid for dermatomyositis, which is considered an orphan disease in both the U.S. and in Europe. The dermatomyositis program commenced in mid-2015. Neovacs presented an update of its ongoing phase 2a study at the World Conference on Myositis in May 2017. The phase 2a study (n=30) is evaluating the immunogenicity, tolerance and biological and clinical efficacy of IFNα Kinoid. In July 2017 FDA approved an IND allowing Neovacs to expand this phase 2a study to the U.S. Results are expected to support design of a pivotal study.

Stellar/Neovacs also recently expanded the supply agreement to ensure sufficient KLH quantities are available to support these upcoming studies as well as a potential future commercial launch. In addition, the agreements call for Neovacs to pay Stellar for maintaining a dedicated colony of limpets. Neovacs has accounted for only a small portion of SBOT’s total revenue over the last couple of years but with additional clinical activity as well as potential preparations towards launch, we think this will increase. As such, we are eagerly awaiting read-out of the phase IIb Lupus study as well as updates on the dermatomyositis program, including commencement of the U.S. portion.

Neostell, the JV formed between Stellar and Neovacs will produce and commercialize Neovacs’ vaccines, assuming eventually approved. Neostell will also seek to supply and manufacture KLH-based products for third parties. Per Neovac’s March 31, 2018, they also expect increasing activity from Neostell. Neovacs notes that, “Neovacs, together with Stellar Biotechnologies, is progressing the development of Neostell, a state-of-the-art production subsidiary for its Kinoids® vaccines, which is largely supported by a €5 million grant from BPI as part of the "PIAVE" program. The project is expected to start in H2 2018 and be completed in 2023.”

Araclon: Per a November 2014 agreement, Stellar will supply Araclon with KLH to support their phase II/III clinical trials for their Alzheimer's candidate. Upon eventual commercialization, Stellar will also have the opportunity to supply KLH for commercial production. In August 2016 Araclon (and partner Grifols) announced positive results from a phase 1 (n=24) safety study of their ABvac40 (short C-terminla peptide conjugated to KLH with alum) Alzheimer’s candidate which showed no difference in adverse effects between patients treated with ABvac40 (n=18) and those given placebo (n=6). Following authorization from regulators in Spain, in late-June 2017 Grifols announced that a phase II study commenced. The most recent update we were able to find was a September 2017 press release in which Grifols noted that they expected enrollment to begin in October 2017. This phase II study is being conducted at up to 22 sites in Europe and includes 120 patients with mild cognitive impairment (i.e. earliest stages of Alzheimer’s). Patients will be randomized 1:1 treatment/control. The study is designed to determine optimal dose for future studies as well as to confirm safety findings of the phase I study. Araclon estimates the study will take about two years to complete.

AXON Neuroscience: As a reminder, in November 2015 AXON Neuroscience (private) presented positive phase I data on its Alzheimer’s disease active vaccine candidate, AADvac1, at the annual International Trials on Alzheimer’s Disease Conference (CTAD). AADvac1, which utilizes KLH as a carrier protein, is being developed to generate specific antibodies against diseased forms of tau protein. The presentation at CTAD showed AADvac1 to be safe, well tolerated and induced a “robust response in the vast majority of the study participants and the average cognition of patients remained stable over 6 months.” Results were published in December 2016 in Lancet Neurology.

And while AXON’s announcement did not specify where they source their KLH, it appears that it may be from Stellar (we asked on the Q4 2015 conf call but due to confidentiality agreement mgmt. could not confirm) given that revenue from AXON contributed ~$120k in fiscal 2015. A phase II study (titled ADAMANT), designed to confirm phase I results in a larger population, commenced in June 2016 and enrollment (n=208) completed in July 2017. ADAMANT is a 24-month, randomized, placebo-controlled, parallel group, double-blinded, multi-center study to assess the safety and efficacy of AADvac1 in patients with mild Alzheimer’s disease. The primary objective is to confirm the positive phase I results. While we cannot confirm that SBOT has supplied KLH to AXON in the past (although it appears that was the case) or is doing so for this phase II study, AXON could represent another source of supply revenue and, potentially, eventually commercialized-product revenue.

We cover SBOT with a $25/share price target. See below for free access to our updated report on the company.

READ THE FULL RESEARCH REPORT HERE.

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