Invivyd, Inc. (NASDAQ:IVVD) Q2 2023 Earnings Call Transcript

Invivyd, Inc. (NASDAQ:IVVD) Q2 2023 Earnings Call Transcript August 12, 2023

Operator: Welcome to the Invivyd Second Quarter 2023 Business and Financial Results Update Call. I will now turn the call over to Gabriella Linville-Engler, Director of External Communications.

Gabriella Linville-Engler: Thank you for joining us today. Before we get started, I want to tend to a few housekeeping items. I invite you to review our press release discussing our second quarter 2023 financial results and business updates, which can be found on the Investors section of the Invivyd website. I would like to remind you that during today’s discussion, we will be making several forward-looking statements. Forward-looking statements include statements concerning, among other things, the future of the COVID-19 landscape, our ongoing research and clinical development plans, including the timing of these plans, our regulatory and commercialization plans, strategies and opportunities, our expected cash runway and other statements that are not historical facts.

Forward-looking statements are subject to a number of risks and uncertainties that may cause our actual results to differ materially from those expressed or implied in the forward-looking statements, including those described under the heading Risk Factors in our filings made with the U.S. Securities and Exchange Commission, including our most recent Form 10-K. It is now my pleasure to introduce the Invivyd management team to the call. I am joined by Dave Hering, CEO of Invivyd; and Dr. Pete Schmidt, Chief Medical Officer. I will now turn the call over to Dave.

Dave Hering: Thanks, Gabriella, and thank you to everyone joining us today on our quarterly update call. In Q2, in the recent weeks, we’ve made significant progress towards our goal of commercializing VYD222 in the near-term and advancing our mission to protect vulnerable people from serious viral threats. Since our last call, we have announced positive initial safety data and robust serum neutralizing tighter data from our ongoing VYD222 Phase 1 clinical trial. We believe that the initial Phase 1 results are very encouraging and speak to the potential for VYD222 to provide vulnerable people, such as immunocompromised, with robust protection from symptomatic COVID-19. Shortly, Pete will provide additional color on the initial Phase 1 clinical trial results and our plans to rapidly initiate a 750-participant pivotal clinical trial of VYD222 for the prevention of symptomatic COVID-19 referred to as the CANOPY trial.

With the compact size of CANOPY and a primary efficacy endpoint based on the analysis of serum neutralizing titers at day 28, the same biomarker used in our Phase 1 clinical trial, we believe that we can swiftly enroll the trial and generate the clinical data necessary to enable a potential emergency use authorization, or EUA submission. We look forward to initiating the CANOPY trial in the near-term and expect to have initial primary endpoint data by approximately the end of 2023. In Q2, we also announced that we reached general alignment with the FDA on a pathway to a potential EUA for VYD222 and anticipated follow-on candidates designed to prevent symptomatic COVID-19. We are very encouraged by the rapid development pathway outlined by the FDA and the opportunity it provides to leverage our previous work developing adintrevimab to accelerate the development of VYD222.

We believe we are one of very few companies positioned to potentially meet the criteria that the FDA outlined for this streamlined development pathway. Importantly, with this pathway, we see a near-term opportunity to bring much needed protection from symptomatic COVID-19 to immunocompromised people. Before I hand the call over to Pete to talk about our plans for the transformational period ahead, I want to briefly underscore three important points. First, the need to protect vulnerable populations from COVID-19 remains as urgent as ever. Immunocompromised people continue to be at higher risk for severe COVID-19 related outcomes. And more broadly, COVID-19 continues to be a deadly threat. Roughly halfway through 2023, before we have even entered the fall and winter months, the CDC estimates that more than 43,000 deaths in the U.S. are attributable to COVID-19 this year.

That is more than 43,000 deaths where COVID-19 was listed as the underlying cause or a contributing cause of death on the death certificate. For context, consider that RSV is estimated to cause roughly 14,000 deaths per year in the U.S. among the groups at highest risk for RSV and that pre-COVID levels for flu-related deaths have fluctuated between 23,000 and 52,000 deaths per year in the United States. COVID-19 remains a substantial driver of morbidity as well. The National Center for Health Statistics estimates that roughly 1 in 7 adults in the U.S. have experienced long COVID at some point, which adds to the unique and unacceptable burden of this disease. While many have accepted the status quo and are trying to live with COVID, we continue to argue that all are not living well, particularly vulnerable population.

Second, we believe that protecting immunocompromised people from COVID-19 is a large ongoing need and opportunity. In the U.S. alone, there are an estimated 8 million to 18 million immunocompromised people who may not generate robust protection from vaccines. To our knowledge, Invivyd is one of very few companies in the clinic now with a monoclonal antibody candidate in development for the prevention of COVID-19 in this population. Consider that Evusheld alone captured $2.2 billion in total revenue in 2022 with strong growth prior to its removal from the market when it lost activity against emerging SARS-CoV-2 variance of concern. In a recent survey we conducted with nearly 200 U.S. physicians who treat different types of immunocompromised patients, 76% of respondents said they would be extremely likely or somewhat likely to use Evusheld for the immunocompromised patients if it were still available and relevant to circulating COVID-19 strain.

In the coming periods, we look forward to sharing more insights from the market research we’ve conducted to further refine our understanding of the different immunocompromised population and the views of the clinicians who care for the different types of patients who may be chronically or temporarily immunocompromised. Third, we believe that Invivyd is uniquely positioned to rapidly and perpetually deliver mAb therapies that can keep pace with viral evolution and protect the vulnerable. Our company and our discovery platform are built on the premise that serial innovation will be required to provide vulnerable populations with continuous access to mAb therapies that protect against serious viral threats, a strategy that is similar to the approach used to periodically modify vaccines in response to viral evolution.

To anticipate and quickly respond to viral evolution, we are leveraging state-of-the-art viral surveillance, predictive modeling and advanced antibody engineering techniques designed to generate a pipeline of optimized mAb candidates that could be deployed in the future. We see COVID-19 as the optimal starting point for Invivyd due to the speed with which products can be brought to the market using the EUA pathway. From there, we believe that our platform could also be applied to protect vulnerable people from other viral threats such as influenza, an area where we have an early discovery stage program. I will now pass the call to Pete Schmidt, our Chief Medical Officer, to discuss in more detail our initial Phase 1 data, pivotal clinical trial plans and regulatory pathway.

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Pete Schmidt: Thank you, Dave. Excuse me. We are pleased to have recently shared positive initial data from our ongoing Phase 1 clinical trial of VYD222 which enrolled 30 healthy volunteers across three different dosing cohorts. Participants were randomized 8:2 to VYD222 or placebo. The initial Phase 1 clinical trial data showed that a single administration of VYD222 was generally well tolerated at all three dose levels tested with no serious adverse events reported. As expected, we saw a dose-dependent increase in serum neutralizing titers against Omicron XBB.1.5. At the lowest dose tested, 1,500 milligrams, the geometric mean serum neutralizing titers were 3,245 against Omicron XBB.1.5 at day 7, a geometric mean 39-fold rise from baseline.

At the 2,500-milligram dose, the titers were 9,647. At the 4,500-milligram dose, the titers were 16,865. As a point of reference, even the lowest VYD222 dose tested resulted in higher serum neutralizing titers against Omicron XBB.1.5 than the titer shared at the recent Vaccines Advisory Committee meeting from investigational XBB-targeted vaccines that were administered to adults who are not on immunosuppressive treatment. Higher VYD222 doses resulted, as expected, in higher titer levels that were well above those reported vaccine titer levels. Serum neutralizing titer data are meaningful because COVID-19 vaccine and mAb clinical trials, including our past Phase 2/3 adintrevimab clinical trial for the prevention of COVID-19 referred to as EVADE have demonstrated that serum-neutralizing titers are correlated with the prevention of COVID-19.

This correlation has also been observed in immune-compromised individuals receiving Evusheld, a mAb that targets the spike protein receptor binding domain of SARS-CoV-2 like VYD222. Based on this correlation, we believe that the serum neutralizing titers seen in our Phase 1 clinical trial are highly encouraging and support the potential for VYD222 to provide clinically meaningful protection from symptomatic COVID-19. With positive initial Phase 1 data in hand, we are pleased to have now solidified the design of our CANOPY trial of VYD222 for the prevention of symptomatic COVID-19, which is geared to support a potential EUA submission. We plan to enroll approximately 750 participants total across two cohorts in parallel. In Cohort A, we expect to enroll approximately 300 participants who are significantly immune compromised.

This cohort may include, for example, people who are actively being treated for solid tumors, people with hematological malignancies, such as acute leukemia or multiple myeloma regardless of treatment status as well as other groups of people who have weakened immune systems as a result of a medical condition and/or immunosuppressive treatment. All participants in Cohort A will receive VYD222 administered via IV infusion and the co-primary endpoints will be safety and tolerability and serum neutralizing titers at day 28. In this cohort, the primary efficacy analysis will use an immunobridging approach, comparing data obtained in CANOPY for VYD222 to certain historical data from our previous clinical trial of adintrevimab in which serum neutralizing titers correlated with observed clinical efficacy.

In Cohort B, we plan to enroll approximately 450 participants who are at risk for exposure to SARS-CoV-2, which is essentially anyone who has regular unmasked interaction with others. Participants in Cohort B will be randomized 2:1 to receive VYD222 or placebo administered via IV infusion. In Cohort B, the primary endpoint will be safety and tolerability. Secondary and exploratory endpoints will include serum neutralizing titers and clinical efficacy. We plan to initiate the CANOPY trial with the 4,500-milligram dose of VYD222. While we believe that all three doses tested in the Phase 1 clinical trial have the potential to provide clinically meaningful protection against symptomatic COVID-19, we have decided to initiate the CANOPY trial with the dose that provided the highest serum neutralizing titers against Omicron XBB.1.5. This decision was informed by the FDA’s preference for a conservative serum-neutralizing titer benchmark and the 4,500-milligram dose.

We believe this dose has the potential to provide a significant duration of protection while also providing protection against the potential loss of neutralization activity as SARS-CoV-2 evolves over time. For context, based on our own data from EVADE and other clinical studies of COVID-19 mAbs and vaccines, we believe there is strong clinical evidence that antibody-mediated protection against symptomatic COVID-19 may be achieved even at relatively low serum neutralizing titers on the order of 30 to 100. While we believe the 4,500-milligram dose of VYD222 is likely to provide titers well above the minimum level observed to provide clinically meaningful protection for a significant period of time, we are excited to continue rapidly advancing the VYD222 program while exploring in parallel possible opportunities to leverage other doses in the future.

As currently designed, all participants in the CANOPY trial will receive a second dose of VYD222 3 months after the initial dose. We plan to use the observed pharmacokinetic data from the trial in combination with the neutralization potency of VYD222 against relevant circulating SARS-CoV-2 variants to modify our redosing strategy as appropriate. With the size and design of CANOPY, we believe that we can quickly enroll the trial, given the strong interest we have seen from trial sites and immunocompromised people. To facilitate enrollment in Cohort A, we have established a registry of recruitment-ready immunocompromised individuals for potential enrollment. We now have more than 1,000 potentially eligible individuals in our database, which we believe speaks to the strong unmet need.

With clinical site selected, study drug available and many other activities already completed, we are pleased to be on track to initiate the CANOPY trial in the near-term. Shifting to the regulatory pathway. As Dave briefly mentioned, the FDA has indicated that the use of a correlative protection or a surrogate of clinical efficacy in an immunobridging approach to a pivotal clinical trial may be a reasonable approach to support an EUA request for new mAb candidates when certain criteria are met. Specifically, when clinical efficacy data from a prototype mAb is available, provided that, one, the new mAb candidate is similar to the prototype mAb such that it leverages a consistent manufacturing platform and has limited structural and functional differences.

And two, the new mAb has supportive non-clinical data, such as favorable in vitro neutralization data against currently circulating SARS-CoV-2 variants. We plan to leverage this immunobridging pathway in the U.S. to accelerate the clinical development of VYD222 and anticipated follow-on mAb candidates with our previous mAb candidate at adintrevimab or future proprietary mAb serving as the prototype mAb. We believe we are one of very few companies that can potentially meet all the criteria and utilize this accelerated development pathway for the prevention of COVID-19. The use of adintrevimab as the potential prototype mAb is proprietary to Invivyd and enabled by the data from our previous Phase 2/3 clinical trial of adintrevimab for the prevention of symptomatic COVID-19, which had clinical event end points.

In addition to utilizing previously generated adintrevimab data, we plan to use day 28 serum neutralizing titers from the immunocompromised cohort of CANOPY, along with safety data from both CANOPY cohorts to enable the clinical data package for a potential EUA submission for VYD222. Looking outside the U.S., we continue to engage with global regulatory authorities regarding the VYD222 clinical development program. In closing, I’m very pleased with all the progress our team has made, and I’m optimistic about the opportunity we have to make a meaningful difference in the lives of some of the most vulnerable people in our communities. Viruses that typically cause minor illness in immunocompetent people can have devastating consequences for the immune compromised, which leads many of these individuals to self-isolate from their loved ones and miss out on many important moments and activities.

For the immune compromise, mAbs have the potential to provide the robust protection from viral threats that they require and deserve. With that, I will turn the call over to Dave to provide an overview of our financials before we open up the call for Q&A.

Dave Hering: Thank you, Pete. The details of our second quarter financials are included in the press release issued earlier today, so I won’t reiterate all of the details here. Invivyd ended the second quarter of 2023 with $298.4 million in cash, cash equivalents and marketable securities. Based on our current operating plans, we expect that our cash, excluding any potential revenue associated with VYD222, will enable us to fund our operating expenses into the fourth quarter of 2024. As you may recall, in past quarters, we guided to the second half of 2024 on runway, but have refined our guidance now that we have finalized the size of our CANOPY trial. We believe that we are well capitalized to execute on our strategy and create value for our stakeholders. With that, operator, please open the call for questions.

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Q&A Session

Operator: [Operator Instructions] Our first question comes from Maxwell Skor with Morgan Stanley. Your line is open.

Maxwell Skor: Hi. Thank you for taking my questions and congrats on the updates. Just can you elaborate a bit more on the profile of Cohort B? Will these patients be vaccinated, unvaccinated, boosted? And how do you plan to evaluate clinical efficacy? Also, did the FDA provide guidance related to how long you have to follow these patients to fulfill the safety requirements? Thank you.

Dave Hering: Hey Max, good question. In terms of Cohort B, this is what we call an all-comers cohort, so we really aren’t concerned with their vaccination or exposure status. And the clinical end points for that cohort will be as they were in EVADE, so symptomatic disease, anyone who gets symptomatic COVID. In terms of follow-up, we haven’t really stated. We will put those details up on clinicaltrials.gov when we initiate the trial.

Maxwell Skor: Great. Thanks.

Operator: One moment for our next question. Our next question comes from Evan Wang with Guggenheim. Your line is open.

Evan Wang: Hey guys. Great to see all the progress from the Phase 3. I had some follow-ups on the trial design. It does seem significantly smaller compared to the SUPERNOVA trial. So – and I know there is a focus on garnering FC data from FDA. So, is this smaller trial really just driven by the platform? And if you could share more color on generating some of the FC data? Second, on enrollment and down by year-end, can you talk about what’s remaining to get the trial started, confidence enrollment and whether you need both cohorts to file for approval especially it seems like it positions you pretty well versus AstraZeneca with your data by year-end? And then third, just thoughts in terms of the commercial opportunity of this immunocompromised and all-comers. I know the focus there has been on immunocompromised, you are seeing. So, just wondered if you have updated thoughts on some of the all-comers commercial opportunity. Thanks.

Dave Hering: So, I will take the first part of this, and then, Pete, you can tag on. So, as it relates to the size of the study versus SUPERNOVA, I mean I can’t comment specifically on why their trial is the size that it is, not knowing that. But I think what’s key is we have started and had these conversations since that December FDA meeting where they had a joint FDA/EMA session talking specifically about how to accelerate mAb development in – against COVID-19. And that’s where they first started bringing up this prototype concept. And then certainly, as we are into our Phase 1 study, we got further detail, which we put forward in a press release talking about this immunobridging concept and being able to utilize specific data from adintrevimab.

I think SUPERNOVA has gone through a variety of iterations and clinical trial design, which may have impacted that. I don’t really know. But specifically, when we look at this, Cohort A allows you to get this titer level data quickly in a small subset of the overall trial. And then Cohort B gets you the necessary safety end that you need to pull together – to put together a package for a potential EUA. You can talk a little bit, Pete, about starting and enrollment, some of the other pieces that Evan asked about.

Pete Schmidt: Yes. And to clarify in Cohort B, it’s exactly what Dave said. I don’t think there is necessarily an intent to pursue a commercial opportunity there. That’s really just to provide the supportive safety database as it’s – as you can imagine, it’s easier to enroll all-comers than specifically the immunecompromised. And in terms of recruitment and what we expect, I think it goes to what I was saying about this registry we created. So, every individual in that registry has identified as immune compromise and has expressed interest in an interventional trial. So, we are very pleased to have that ready database of over 1,000 individuals, and we think that a large proportion of them will be very interested enrolling quickly.