Reshma Kewalramani
Chief Executive Officer and President at Vertex Pharmaceuticals
Thanks, Susie. Good evening, all, and thank you for joining us on the call today. We are pleased to have closed out a strong 2022 with full-year global CF product revenue up 18% versus 2021. Our full-year 2023 product revenue guidance is $9.55 billion to $9.7 billion, representing 7% to 9% growth year-on year, inclusive of FX headwind of approximately 1.5%. We have more than 20,000 patients still to reach with CFTR modulators and we continue to work with focus and urgency to reach all patients with CF around the globe who may benefit from our therapies.
It is an exciting time for Vertex. Our medicines have transformed CF, and the growth of our CF business has transformed Vertex. Our differentiated R&D approach led to our multiple life-changing therapies in cystic fibrosis and is designed to deliver transformative medicines for serious diseases at high rates of success, agnostic to modality. It is delivering just that. In aggregate, our mid and late-stage clinical pipeline holds the promise to deliver potentially transformative benefit for patients across eight disease areas, as detailed on Slide 5. Each program holds the potential to be best-in-class and transform the disease, and each represents a multibillion-dollar market opportunity. Furthermore, we see the opportunity to launch new products into five of these disease areas within the next five years, or our five in five goal, and we're not done.
The next wave of innovation is also making progress in advancing through preclinical development, including programs in Duchenne muscular dystrophy and myotonic dystrophy Type 1. This breadth of pipeline success accelerated pace of clinical trial progress and build-out of commercial capabilities for upcoming product launches warrant continued investments in 2023. As such, we are strategically investing and focusing on execution to drive forward the significant opportunity. With a uniquely strong and durable CF franchise, a deep, broad and advancing R&D pipeline with multiple potentially near-term commercial opportunities, a strong balance sheet and a deeply talented and committed team, Vertex is well-positioned to deliver for patients and shareholders for years to come.
With that overview, I'll turn to the details of recent R&D progress starting with CF. We continue our journey in cystic fibrosis as we serially innovate to bring highly efficacious therapies to all CF patients. Our next in-class vanzacaftor triple combination completed enrollment in its two Phase 3 clinical trials, SKYLINE 102 and SKYLINE 103 in patients ages 12 years and older in Q4 of 2022. While TRIKAFTA sets a very high bar, our enthusiasm for this vanzacaftor program is also high. This program could deliver even greater benefits to patients, given one are highly predictive in-vitro human bronchial epithelial, or HBE, cell assays showed the vanza triple was superior to TRIKAFTA in improving chloride transport, a direct measure of CFTR function; two, our Phase 2 clinical data also suggest the potential for greater efficacy for vanzacaftor versus TRIKAFTA; and three, the vanzacaftor triple also has the benefit of once-daily oral dosing and a substantially reduced royalty burden relative to TRIKAFTA. The Phase 3 trials are currently in the 52-week dosing period, and we anticipate their completion towards the end of this year.
Another important program is the VX-522 program, our CFTR mRNA approach that we are developing in partnership with Moderna for CF patients who cannot benefit from our CFTR modulators. In December of 2022, the FDA cleared the IND for VX-522 and the single-ascending dose study in CF patients was initiated last year, a major milestone for Vertex and the field. We have high expectations given over five years of research that led to the discovery of VX-522 with the following properties: one, delivery of MRNA at high-efficiency into HBE cells; two, expression of CFTR protein leading to high levels of chloride transport; and three, in both rodents and non-human primates expression of CFTR protein in the desired cells; and lastly, a preclinical safety profile that supported advancement into human clinical trials. We are excited with the progress of VX-522, which brings hope to the more than 5,000 CF patients who are still waiting for a treatment that targets the underlying cause of their disease.
Turning now to exa-cel, our gene editing program for severe sickle cell disease and transfusion-dependent beta thalassemia. This is our most advanced program outside of CF, and we expect exa-cel to be our next commercial launch. In late Q4, we completed our regulatory submissions for exa-cel for both sickle cell disease and beta-thalassemia in the EU and UK. Both the EMA and the MHRA have recently validated the MAA submissions. And in the US, we remain on track to complete our rolling BLA submission by the end of this quarter. The remarkable clinical benefits are evident in the data we've shared to date. Exa-cel holds the promise to be the first CRISPR-based gene editing treatment to be approved and represents a near-term and significant market opportunity, which Stuart will detail.
Turning next to VX-548, and our pain program. VX-548 is our novel selective NaV1.8 inhibitor that holds the promise of highly effective pain relief without the side-effects or addictive potential of opioids. If approved, VX-548 would represent the first new class of pain medicine in decades, with the potential to address the staggeringly high unmet need in acute pain. VX-548 acts on the peripheral nerves that block the pain signal, and thus may be able to provide effective pain relief without the abuse potential, which is a central nervous system phenomenon. We have high expectations for this program because NaV1.8 is a genetically and pharmacologically validated target.
Second, we have multiple positive proof-of-concept results with VX-150, a predecessor molecule to VX-548 and proof-of-concept with VX-548 itself. And lastly, our Phase 3 program in acute pain is substantially similar to the positive Phase 2 trials we have already conducted. VX-548 has been granted Fast Track and Breakthrough Therapy designation in the US. We initiated pivotal development last year, and we are enrolling patients across three Phase 3 studies with the goal of seeking a broad moderate-to-severe acute pain label. We anticipate completing the Phase 3 pivotal program towards the end of this year or the beginning of next, creating another potentially significant and near-term commercial opportunity, which Stuart will also discuss.
In addition to validation of Nav1.8 as a target in acute pain, it has also been validated as a target in neuropathic pain. I am pleased to share that in late Q4, we initiated a 12-week Phase 2 dose-ranging proof-of-concept study for VX-548 in peripheral neuropathic pain. We look forward to updating you as this Phase 2 program progresses and to sharing more on the market opportunity on future calls.
Transitioning now to inaxaplin or VX-147, the first potential medicine to target the underlying cause of APOL1-mediated kidney disease, or AMKD. Post the positive Phase 2 proof-of-concept study, inaxaplin is now being studied in a single adaptive Phase 2/3 pivotal trial. This study has a preplanned interim analysis at 48 weeks of treatment, which, if positive, could serve as the basis to seek accelerated approval in the US. Our goal is to complete the Phase 2 dose-ranging portion of the Phase 2/3 pivotal study this year, select a dose and then continue on to the Phase 3 portion. We are also working to increase awareness, screening and diagnosis through multiple initiatives, given the high unmet need and the approximately 100,000 patients in the US and Europe alone. With inaxaplin, we see the potential of bringing a first-in-class treatment to patients with AMKD and unlocking a multi-billion-dollar market opportunity.
Moving to Type 1 diabetes, where our goal is to deliver a transformative, if not curative therapy, for the more than 2.5 million patients with Type 1 diabetes in North America and Europe, we are advancing multiple programs. First, VX-880 is our stem cell-derived fully differentiated insulin-producing islet cells, which use standard immunosuppressive to protect the cells from the immune system. These cells are also foundational for the other two T1D programs. For VX-880, we achieved proof-of-concept last year with the first two patients treated in Part A of the VX-880 study. We have now fully enrolled Part B, where patients will receive the target dose on a staggered basis. The next phase is Part C expected to initiate later this year, in which patients will be treated concurrently with the target dose. We look forward to sharing VX-889 data from more patients and with longer duration of follow-up at medical congresses this year.
Second, VX-264 are the cells plus device program, which encapsulates the same fully differentiated insulin-producing islet cells in a proprietary device that shields the cells from the body's immune system. And hence, there is no requirement for immunosuppressants in late Q4. We simultaneously filed a CTA in Canada as well as the IND in the US. As we shared last month, the CTA has cleared and we look forward to initiating enrollment and dosing of patients in Canada in the coming months. In the US, the IND has not cleared. We have received and responded to the FDA's questions. We look forward to working with the agency With urgency, so that we can initiate this study in the US as soon as possible.
Third, in our hypoimmune program, we are editing the same fully-differentiated insulin-producing islet to cloak them from the immune system, another path to obviating the need for immunosuppressives. This program continues to progress in preclinical development. Let me close the T1D section with an update on the ViaCyte acquisition through which we gained intellectual property, tools and capabilities that hold the potential to accelerate our goal of developing transformative treatments for this disease. We have now completed our data and portfolio review and are very pleased with the progress to date, we have begun executing our integration plans. On the clinical side, a Phase 1/2 study of VCTX- 211, a hypoimmune cell program that originated with ViaCyte and that Vertex is now developing in partnership with CRISPR Therapeutics has been initiated and is ongoing. All other ViaCyte clinical trials have completed enrollment and dosing and are in the follow-up stage.
I'll finish up with the alpha-1 antitrypsin deficiency, or AATD, program both of Phase 1 study of VX-634, the first in a series of next wave AAT correctors, and a 48-week Phase 2 study of VX-864, our first-generation AAT corrector, are ongoing. We look forward to updating you as these programs advance.
I'll now ask Stuart to review our commercial progress.