Good day and thank you for standing by. Welcome to the Acutis Biotherapeutics, Inc. First Quarter 2026 Earnings Conference Call. At this time, all participants are in listen-only mode. After this previous presentation, there will be a question and answer session. To ask a question during the session, you'll need to press star 11 on your telephone. You will then hear an automated message advising your hand is raised. To withdraw your question, please press star 11 again. Please advise that today's conference is being recorded. I would like to hand over to your first speaker today, Brian Sholkoff, Head of Investor Relations. Please go ahead.

Thank you, Marvin. Good afternoon, everyone, and thank you for joining us today to review our first quarter 2026 Financial Results and Business Update. Slides for today's call are available on the Investors section of the Arcutis website. Joining me on the call today are Frank Watanabe, President and CEO of Arcutis, Todd Edwards, Chief Commercial Officer, Patrick Burnett, Chief Medical Officer, and Lotta Byervan, Chief Financial Officer. I'd like to remind everyone that we will be making forward-looking statements during this call. These statements are subject to certain risks and uncertainties, and our actual results may differ. We encourage you to review all the company's filings with the Securities and Exchange Commission, including descriptions of our business and risk factors. With that, let me hand it over to Frank to begin today's call.

Thanks, Brian, and good afternoon, everyone. As always, we appreciate you guys making the time to join us. I want to start today's call with an overview of the latest developments at Arcudis and the progress we're making against our Grow, Expand, Build strategy. I'll then turn things over to Todd for a commercial update, then Patrick for an R&D update. And finally, Latha for a review of the quarter's financial results, as well as how we're thinking about investing in 2026 to drive Zareev inflection. So I'm starting on slide five. Hopefully by now you're all familiar with the Grow, Expand, Build framework that we have adopted to define our strategy to sustain near and long-term growth for both Zareev and the company overall. In a nutshell, our plan is to continue to grow our core Zareev business in our currently proved indications, to expand Zareve into additional indications, and to build our innovative pipeline beyond Zareve. So starting with the GROW pillar for driving momentum in our core approved indications, we're very excited to have submitted a supplemental NDA for Zareve cream, 0.05% in atopic dermatitis patients aged 3 to 24 months in April. This is a segment of patients who are significantly impacted by AD and who are in dire need of safe and effective treatment options beyond the very small number of currently approved therapies. Patrick will comment on the opportunity more, but we see this as a very significant new opportunity for Zareev, and there's a lot of excitement amongst dermatology clinicians about our data and the possible approval. We also completed enrollment in a MUSE trial for Zareev foam 0.3% in children with scalp and body psoriasis ages, two to 11 years of age. And that should serve as the basis for submission to extend the label to this age group, aligning it with the 0.3 cream. On the commercial front, we've successfully completed, we've essentially completed, excuse me, the expansion of our dermatology sales force to enable deeper reach into the dermatology landscape. And I'm happy to report that our expanded derm sales force is in the field as of this week. But of course, we probably won't begin to see an impact on sales for a few months. We also began the build out of our dedicated PCP and pediatric sales team, starting with the recent hiring of our head of primary care franchise. This team will embark on a targeted effort to engage with those primary care and pediatric clinicians who are already using a fair bit of topical therapies in their practice. We also continue to make important progress against our expand pillar as we work to bring the unique benefits of Zarif to people impacted by chronic inflammatory skin conditions beyond our currently approved indications who are also in need of targeted innovative treatment solutions with a focus on diseases where we've already seen compelling potential of Zarif based on case reports and case series. And specifically, we're nearing full enrollment of our phase two proof of concept trial in vitiligo, and we continue to enroll patients in our phase two POC trial in hydrantinitis Suprativa, or HS. We're also evaluating additional Phase II proof-of-concept trials and indications beyond vitiligo and HS, and we'll obviously update you guys on our further decisions. And finally, we reached an important milestone in our pipeline building activities with the initiation of a Phase Ia, Phase Ib trial for ARQ-234. The investments we're making and the efforts we're taking to advance our initiatives across these three pillars are laying groundwork for further Zareev sales inflection and operating leverage expansion in 2027 and far beyond, as well as positioning us to sustain growth for the long term, and most importantly, expanding our impact on individuals living with chronic inflammatory dermatoses. Despite now having a successful commercial franchise in Zareev, we continue to be at our core a biotechnology company championing meaningful innovation within medical dermatology. These investments in innovation and growth reflect that intent. And with that, I'll hand the call over to Todd to give you a Q1 commercial update.

Great. Thank you, Frank. And good afternoon, everyone. Turning to slide seven, we continue to see strong sales performance in the first quarter, with net product revenues of $105.4 million, up 65% versus the first quarter of 2025. This healthy quarterly performance was achieved despite the customary first quarter seasonality impacting branded therapies driven by patient-deductible resets, elevated co-pay utilization, annual insurance transitions, and pull-forward of refills into Q4. This typical pattern was further amplified this year by the impact of severe weather events we had across the country during the quarter. On an aggregate basis and in line with expectations, this resulted in a more significant sequential decline in product revenues from quarter four to quarter one compared to 2025, where seasonality was mitigated due to the initial launch of Zarev in atopic dermatitis. Importantly, we are through the impact of this typical seasonality and anticipate a return to robust quarter-on-quarter demand growth going forward. Our gross-to-net remains stable in the 50s, and as communicated on our last call, we anticipate it will remain in the same range for the remainder of 2026. Our first quarter gross-to-net rate improved compared to quarter one, 2025, due to our evolving payer contracting that benefited product revenues for the period. Looking ahead to the second quarter, we expect quarter-over-quarter net sales growth driven primarily by increasing patient demand as well as continued gross-to-net improvements as we progress from our current rate to the low 50s as the year progresses. Turning to slide 8, after a typical December to January pullback in demand, weekly prescriptions on a rolling four-week average based on IQVIA exponent data have returned to a healthy growth trend and reached approximately 21,000 prescriptions per week across all indications and formulations for Zareve. As is clear from this chart, Zareve continues to generate sustained RX growth. For the remainder of 2026, we anticipate sustaining demand growth will be the primary driver of Zaree's revenue expansion. The most important driver of this sustainable momentum will remain the conversion of topical corticosteroids to advance targeted topical therapies as healthcare providers and patients' perceptions of the risk of chronic use of topical steroids evolves. In a few minutes, Patrick will comment on developments we are seeing on that front. The investments we have made to expand our dermatology sales force will also contribute to demand growth in the second half of the year, and our efforts in primary care and pediatric settings will start to have an impact later in 2026 and 2027. Next, I'll provide some additional detail on demand across topical therapeutics and dermatology in the first quarter. I'm on slide nine. As demonstrated in the chart on slide 9, prescription volumes were down across the board for topicals in the first quarter of 2026 compared to the fourth quarter of 2025. Of note, the impact was not only seen with branded products, but also with topical corticosteroids, antifungals, vitamin D analogs, and topical calcourneum inhibitors. Products in these categories are primarily generic, making them less sensitive to the typical seasonality experienced by brand of products in the first quarter. And yet, this year, they still saw marked sequential declines quarter on quarter. We believe that this dynamic speaks to the fact that the severe weather events in the first quarter impacted dermatology prescription volume in general, a headwind that compounded typical seasonality and affected the entire topical segment of note the prescription decline for Zareev in the quarter at 6% was meaningfully lower than the other branded non-steroidal topicals which collectively were down 15% for the quarter this relative outperformance is further evidence of the growing preference for Zareev by dermatology health care providers and patients Zaree's relative strength in the period also drove further share expansion, with Zaree's share of total branded non-Zaree topical prescriptions increasing to 48% in the first quarter, a 3 percentage point increase from the end of 2025. Moving to slide 10, we are excited about the key investments we are making in 2026 to drive to reach continued momentum and set the foundation for its growth inflection in 2027 and beyond. We have completed our previously announced dermatology sales force expansion. As Frank noted earlier on the call, we're pleased to report that these new sales force members are out in the field as of this week. As is typical, these sales representatives require a couple of months to gain familiarity with their call points, so we anticipate seeing the impact on demand from these added boots on the ground beginning in the third quarter. We are also underway in the build of our primary care and pediatric team. We are thrilled to announce today that we have hired the head of this new franchise, Katie Swalves. Katie brings incredible breadth and depth of experience with dermatology therapeutic commercialization, having held various strategic and operational leadership positions, and And she has already begun building out the rest of her team. As we described previously, we are adopting a high-targeted approach with this sales team focused on high-volume, early adopter PCPs and pediatricians concentrated in major metropolitan areas, positioning this investment to be accretive from the outset. From there, we will evaluate additions to the sales team as we further refine our strategy and gain in-depth understanding of the space. we look forward to completing the initial build out process next quarter with a launch into the field in q3 initial impact to demand beginning in the fourth quarter rounding out focused commercial investments are free to be me direct-to-consumer patient awareness campaign featuring tori spelling her daughter stella mcdermott and professional golfer max homa has driven strong meaningful patient engagement their shared collective experiences are helping to drive awareness for Zareev across all indications and are resonating with a broad range of patient demographics. We look forward to the continued progress of this important direct-to-consumer effort to ensure we are capturing and reflecting the patient voice and patient experiences as they live and manage their chronic inflammatory skin conditions and the impact Zareev has on their lives. With that, I'll now turn the call over to Patrick.

Thank you, Todd. Good afternoon, everyone. In the first quarter, we continue to make significant progress in our efforts to support young children and infants suffering from plaque psoriasis and atopic dermatitis. Starting first with atopic dermatitis, children under the age of two are the most vulnerable patients in a population that desperately needs alternative therapeutic options to the handful of currently available treatments. As a dermatologist, I can tell you firsthand how challenging it is to sufficiently address these diseases in this age group, given the very limited set of approved therapies and how eager their parents and caregivers are for effective, safe, and well-tolerated treatments to bring comfort to their kids. Safe, well-tolerated treatments are especially important in this age group when the immune system and the skin barrier are still developing. We take their plea very seriously, and we believe the clinical profile and formulation of Zareev are well-suited to the needs of this young patient population. On our March call, we highlighted the positive top-line data from the Integument Infant Phase II trial of Zarif cream 0.05% in infants aged 3 to less than 24 months with mild to moderate atopic dermatitis. Expanding on what we shared in March, we were honored to have our abstract selected for a prestigious late-breaker session and presented by Dr. Lawrence Eichenfield at the American Academy of Dermatology annual meeting at the end of March, select portions of which we have here on slide 12. Over a third of study participants who completed four weeks of treatment achieved a validated investigator global assessment for atopic dermatitis, that's a VIGA-AD, success. Now that's defined as a score of zero, which is clear, or one, which is almost clear, with at least a two-grade improvement. Close to half of infants achieved a VIGA-AD score of clear or almost clear, that's a zero or one, at week four, and 24% already at week two. Now, for those infants with at least mild scalp involvement at baseline, more than two-thirds achieved VIGA scalp success at week four. And as previously highlighted, 58.3% of infants achieved at least a 75% reduction in their eczema area and severity index, that's an easy 75, at week 4, and three quarters of infants already at week 2. Now to the right, we see a representative patient. This is a 23-month-old boy who had previously been treated with topical corticosteroids with an IgA of 3 or moderate severity at baseline. And he's showing significant improvement at week four with an IGA of one or almost clear. I think these photos really represent the meaningful impact that our 0.05% cream delivered to patients in this study and why we're so excited to already have these data submitted to the FDA. Collectively, the findings from the Integraiment Infant Study add important clinical evidence on the promise of investigational Zarev cream 0.05% in infants 3 to 24 months. with rapid and robust efficacy across multiple clinical endpoints, coupled with excellent tolerability and a clean safety profile. Now, moving on to slide 13, I want to highlight one particularly notable result that we shared from integument infant at the AAD, namely the rapid impact that Zareev had on itch for these patients, as reported by their caregiver. Itch is one of the most disruptive symptoms of atopic dermatitis in patients of all ages, and the rapidity with which a therapy can alleviate itch is an important aspect of a drug's therapeutic profile. We've known since early clinical development that Zarev has a rapid impact on itch. The chart on the left-hand side of slide 13 shows itch improvement over time in our registrational integument 1 and 2 trials in atopic dermatitis as measured by WINRS, or Worst Itch Numeric Rating Scale. As you can see, we saw itch reduction as early as 24 hours after first application, and that was the first time point measured in these trials. However, through our clinical trial experience and feedback from clinicians in the field, we appreciated that the speed with which Zarev impacts itch is exceptional. And with that in mind, in integument infant, we chose to measure impact on itch using the dynamic paritis score, or DPS, with measurements as early as 10 minutes after application. The results from that analysis are demonstrated in the chart on the right-hand side of this slide. Nearly 50% of patients experienced a 25% improvement in itch, as measured by their caregivers, within just 10 minutes of application of Zareve, and two-thirds of patients experienced relief within four hours. These results not only reinforce our conviction that Zareve will be an important therapeutic option for infant patients, but this demonstrated speed of onset has also prompted us to further study the impact of Zareve on itch. To that end, we recently initiated a study, Integument Itch, to assess descriptive classification of pruritus over time with Zareve 0.15% cream in patients with atopic dermatitis. This 40-patient trial will begin enrolling shortly. We believe that the further validation of Zarif's rapid impact on itch that this trial is intended to demonstrate, particularly within the first 24 hours after initiating therapy, is an important step in better understanding and articulating Zarif's profile in atopic dermatitis. Integument itch is an example of our strategy to generate additional clinical data for our current indications to further bolster the data set behind Zarif, an important component of our GROW strategy pillar. I look forward to sharing subsequent updates on other clinical activities we're pursuing along the same vein. Next, I'll provide an update on our label expansion efforts to support pediatric patient populations. As Frank mentioned in the opening, we submitted a supplemental NDA to the FDA in April for Zarev cream 0.05% to expand the indication to infants 3 to 24 months. We're thrilled to have taken this critical step to potentially bring a new safe, well-tolerated, and effective therapeutic option to this patient population. It's notable that we were able to submit our application in just three months after having read out the top-line results from our integument infant trial. This reflects the speed with which our team at Arcudis is moving on behalf of patients and our response to the high level of urgency shared by those HCPs who care for these youngest AD patients. Turning next to our pediatric expansion efforts for plaque psoriasis, we recently completed enrollment of a MUSE trial or maximum use trial for Zaree foam 0.3% for children ages 2 to 11 years old with scalp and body psoriasis. The trial is intended to serve as the basis of an SNDA submission to extend the indication to this age group and to align the psoriasis indication of the 0.3% cream and foam. If approved, Zarif foam could offer a truly unique therapeutic option for caregivers helping their young children manage this disease that has historically been difficult to treat when presenting in hair-bearing areas. In addition, as previously announced, our supplemental NDA for Zarif cream 0.3% for psoriasis patients down to the age of two years is under review by the FDA, and the PDUFA Action date of June 29th is quickly approaching. I'll note that the rationale for extending our label to the infant population for atopic dermatitis does not apply to plaque psoriasis or seborrheic dermatitis. Onset of diseases in these patient populations is common in atopic dermatitis, while it's not in the other two diseases. Our current label in seborrheic dermatitis positions us to effectively serve the addressable patient population and potentially securing a label expansion to the pediatric age range in plaque psoriasis will similarly equip us to serve the addressable patient population. As demonstrated in the table on slide 14, these latest developments in expanding our indications to additional pediatric and infant populations build on a consistent focus we've maintained over the years to broaden the availability of Zareev. We're driven by the need of these younger children for effective, safe, and well-tolerated therapeutic alternatives to topical corticosteroids. We also anticipate that when healthcare providers see how effectively Zareve alleviates inflammatory skin disease in their most fragile and vulnerable patients, they'll be more inclined and appreciate the potential benefit from Zareve for their adult and adolescent patients with the same diseases. Now, turning to slide 15 and the pipeline, this is the BUILD pillar of our strategy. We've now initiated the phase one trial of ARQ-234, our novel biologic targeting CD200R, in healthy volunteers and adults with moderate to severe atopic dermatitis. There's a clear and distinct need for a systemic therapy for patients with atopic dermatitis who have relapsed on or who are refractory to IL-4, IL-13 drugs. Many in the drug industry and many clinicians had until recently hoped that agents targeting OX40 would meet that need. However, after a series of disappointing clinical data sets and growing safety concerns for these programs targeting OX40, already leading to program discontinuations, that hope has dissipated, leaving a white space for novel new treatment pathways. It's our belief that the CD200 axis targeted by ARQ-234 could bring an important new tool for providers and an important new option for patients. The CD200 axis plays a central role in both innate and adaptive immunity, with CD200 signaling reducing immune activation for T cells, type 2 innate lymphoid or ILC2 cells, and myeloid cells, and decreasing secretion of pro-inflammatory cytokines. Given the impact of this access, there's a solid basis for optimism about the role of CD200R agonist programs may play in treating inflammatory diseases. The Phase I trial for ARQ-234 is comprised of a single ascending dose, or SAD, component in Healthy Volunteers, which is currently ongoing, and a multiple ascending dose, or MAD, component, followed by a proof-of-concept cohort, both in patients with moderate to severe atopic dermatitis. While we will not share the results from the trial until completed, we will keep you apprised of our progress through these different components. And moving on to slide 16, as you can see, we've already delivered on several meaningful clinical milestones in 2026 and look forward to continuing clinical progress throughout the year. Of note, we continue to enroll our Phase II proof-of-concept trials in vitiligo and hydradenitis suppurativa, or HS. We're nearing full enrollment for our vitiligo trial and remain on track to provide a readout of trial results and an update on our clinical development plan in Q4 of this year. And a similar readout for our HS program in Q1 of 2027 also remains on track. Todd alluded earlier to the continued shift from topical steroids to advanced targeted topical therapies like Zaree's. As we've mentioned on prior calls, we're seeing a steadily growing consensus within the dermatology specialty around the clinical needs for that shift, and we saw further evidence of this since the start of the year. On slide 17, I highlight just a few of the recent discussions on this topic. I would call your attention in particular to one of the conclusions of the recently published expert consensus statement on advanced non-steroidal topical therapies for atopic dermatitis, which came out in March in the Journal of Drugs in Dermatology. As you can see, some of the most distinguished experts in the field agree that advanced non-steroidal topicals should be preferred over topical corticosteroids for long-term management of atopic dermatitis due to their cleaner safety profiles. This is typical of what we continue to hear from the leaders in dermatology, and this growing consensus will propel the conversion to the newer agents, of which Zarif is the leading treatment. With that, I'll turn a call over to Lata to further detail our Q1 financial results. Thank you, Patrick. I'm on slide 19. We generated net product

revenues in the quarter of $105.4 million, which is up 65% from Q1 of 2025. This year-over-year increase was driven primarily by increased patient demand. We also had lower gross to net in the first quarter of 2026 versus a year earlier, contributing to higher net product revenue. As Todd mentioned earlier, this improvement in gross-to-net was primarily driven by the evolution of our payer contracting, and while our gross-to-net rate is lower to begin the year, we still anticipate our gross-to-net to be in the 50s throughout 2026, ending in the low 50s. Cost of sales in the first quarter were $9.8 million compared to $8.8 million in the first quarter of 2025, primarily due to increasing zero-reve sales volume. For the first quarter of 2026, our R&D expenses were $30.6 million versus $17.5 million for the corresponding period in 2025. This year-over-year increase was primarily due to the $10 million milestone obligation to dissent to shareholders triggered by the dosing of the first subject in the ARQ-234 Phase I trial, which occurred in the quarter. SG&A expenses were $74.1 million for the first quarter of 2026, compared to $64 million in the same period last year, up 16% as we continue to invest in our commercialization efforts for Zaree. We anticipate a modest increase to the SG&A expense in the back half of the year, driven by headcount-related costs for the dermatology sales force expansion and the build-out of our primary care and pediatric sales team. We are maintaining our revenue guidance in the range of $480 million to $495 million for the full year 2026. Moving to slide 20, you can see that we had cash and marketable securities of $224.3 million on our balance sheet as of March 31st, 2026. Importantly, we maintained positive cash flow in the quarter with $2.2 million of net cash provided by operating activities we will continue to be disciplined in our investments in the business to maintain positive cash flows throughout the rest of the year we have total debt of 101.5 million and have the right to redraw another 50 million in whole or in part at our discretion through the middle of 26. i am now on slide 21. with the continued broad adoption of Zaree and sustainable sales momentum that the franchise has demonstrated, we have reached the rare milestone amongst biotechnology companies of achieving positive cash flow at Arcutis. We first achieved sustainable positive cash flow in the fourth quarter of last year and have communicated that through diligent expense management, we anticipate maintaining positive cash flow on a quarterly basis throughout 2026. The core Zareef business is strong and the shift from topical steroids to branded non-steroidal topicals will continue to offer immense growth opportunities for many years to come. Concurrently, we are reinvesting capital generated from our Zareef franchise back into our business in order to inflect growth in 2027 and beyond. Zaree's growth is driven by both of these factors. You have heard about several of these initiatives today, including our salesforce expansions in both derm and primary care, D2C efforts, clinical investments to support current and potential additional indications for Zaree, and progress on our innovative pipeline. There are additional initiatives for which we are making disciplined investments, so we look forward to detailing throughout the year. These investments lay the foundation for both near- and long-term growth for our Qtus. They will help to further catalyze the continued growth of Zareef and inflect its trajectory. Zareef is a profitable franchise, and if we were not pursuing these impactful, accretive investments, we would commence operating leverage expansion in 2026. As we look ahead to 2027, we expect a moderation in the need for increased investment in our current business compared to this year. Coupled with the anticipated continued sales growth of Zaree, we expect that we will see meaningful increase in our operating leverage and cash flow generation in 2027 and beyond. With that, I will now turn the call back to Frank for closing remarks.

Thanks, Latha, and thanks again to all of you for joining us today and for your continued interest in our QDIS. I'm immensely grateful to our team and very proud of their hard work, their dedication to building shareholder value, and their commitment to the patients we are serving. And with that, I'll open up the call to Q&A.

Thank you. At this time, we'll have the question and answer session. As a reminder to ask a question, you'll need to press star 11 on your telephone and wait for your name to be announced. To withdraw your question, please press star 1-1 again. Please stand by while we compile the Q&A roster. And our first question comes from the line of Andrew Tsai of Jeffrey's. It line is not open.

Hey, good afternoon. Thanks for the nice set of updates. Thanks for taking my questions. So it sounds like GrossNet performed better than compared to last year, Q1 of last year. Can you guys maybe qualitatively describe what drove that better percentage? Was it something within your control? and what kind of positive impact could that have for the rest of the year? I know you kind of guided grossing net for the rest of the year. Is it fair to assume blended grossing net for this year could be better than the blended grossing net for 2025? Thank you. Sure. Yeah, Todd, you want to take that one?

Yeah, Frank, I'll take that call. And Andrew, thank you for the question. So, yeah, as mentioned, we did have price and improvement in the first quarter of this year relative to Q1 2025. This year-on-year improvement was primarily driven by improvements in familiar status with more preferred versus non-preferred position with some of our commercial plans. What this means is that for a patient, for a preferred status, it's a lower co-pay versus non-preferred position. So with the preferred status and lower co-pay for the patients, that leads to lower co-pay expenses and lower co-pay buy-down for our QTIS, given as the price lead upside. Now, while our rate is lower than the prior year, we continue to anticipate that we'll be stable in the 50s, without a doubt, throughout the year, and as mentioned, we'll be working down from the higher 50s at the beginning of the year, transitioning to the lower 50s at the end of the year as patients continue to buy down the deductibles and we have lower co-pay expenses. Now, as we look forward, I think it's a bit too early to anticipate how all these factors will carry forward to future years. but I remain very confident that we'll continue to have a very strong growth to net and we'll maintain our growth to net within the 50s going forward. Thank you for the question.

Thank you. Thank you. One moment for our next question. Our next question comes from the line of Tyler Van Buren of TD County, and I is now open.

Thanks so much for taking the questions. Just to help quantify the quarter-over-quarter impact in the Q1 seasonality, as we compare to Q4, can you help us understand how much of that was the gross to net impact versus volume impacts from weather or Q4 pull forward? And the second part or follow-up is, I understand that you're saying that Q2 sales will be above the first quarter, but do you believe it's likely that Q2 sales could significantly exceed the sales that were posted in Q4?

Yeah. Hi, Tyler. Yeah, Todd, you want to take that one, too?

Yeah, absolutely. Thank you, Tyler. So, in reference to the quarter-on-quarter impact of seasonality and the differential between gross-to-net and demand, as we've highlighted, you know, there was an upside on gross-to-net due to the formular status change from non-preferred to preferred with the, as mentioned, the demand, you know, I'm saying relative to the 6% on that. And, you know, if you think about it with the seasonality, which is typical because of the pull forward of the refills into Q4, we got employers that are often changing insurance for the employees. That's effective January 1st of the year. That transitions impacts relative to Zarif, and then, of course, the higher deductible reset that impacts it. And then, as noted, this was compounded relative to the weather impact. And I will just mention that this whole weather impact and demand impact was not just limited to the topical products. I mean, if you look at the systemics, they were also impacted as well. For example, Tesla was down 11 percent, revoked 3 percent, depicts it 2 percent. This is on volume due to this seasonality with this ambient amplified by the impact of the weather. Relative to Q2 cells and how we think about them going forward, I will mention that Q2 quarter to date through April 24th, Zareev has 13 percent growth versus Q1 within the same time period. So we're off to a very strong start within Q2 here, and I have high confidence that we'll continue to build on this demand trend and have robust growth quarter over quarter as we go forward.

Thank you. One moment for our next question. Our next question comes from the line of Seamus Fernandez of GUNINE Securities. Your line is now open.

Hi, this is Colleen on for Seamus. Thanks for taking our question. When thinking about this year's sales guidance, what are the assumptions driving the lower end of the guide? By our math and just based on the current prescription projectory, we're starting to struggle to land within the upper end of the guide and consensus looks to already be above. So just trying to understand the pushes and pulls to maintain the current guide. Thanks.

Hi, Colleen. You know, look, I would say that, you know, we just updated the guidance in February. So not that long ago. You know, we don't intend to update our guidance, at least for the moment, every quarter. So, you know, we'll continue to evaluate the trend as the year progresses. And if we feel that it's appropriate to update guidance, we will. But we felt that at this point early in the year, particularly with the slightly anomalous Q1, we felt that it was prudent just to hold fast. Latha, Todd, I don't know if there's anything else you want to add to that.

Nothing else, Frank.

Yeah, Colleen, I would say that we issue the guide after the end of the year. And as Frank said, we don't see the need so early in Q1 to take it up. So, as the year progresses, then as the guide range changes, then you'll be able to align more to where the demand trajectory is headed. But for now, I think you can lean into the upper end and stay there. Great. Thank you.

Thank you. Thank you. One moment for our next question. Our next question comes from the line of Tudor Farmer of Morgan Stanley. Your line is now open.

Yeah, hi, guys. Thanks for taking the question. We appreciate kind of the updated trends on total scripts and the share being taken there. Anything you're noticing in NRX, new scripts, and any trends that are indicative of where TRX could move going forward?

You're talking absolute volume, share? Yeah, I would say share of new scripts, how that's trending. If anything has changed,

has that formulary position maybe impacted what new scripts are doing?

Okay, sure. Todd, do you want to take that one?

Yeah, I'll take that one. When we look at the Q1 for Zareeve, and you look at the new-to-brand RX for the branded non-seroidal topicals, you look at that basket for Q1, Zareve drove 48% of the new-to-brand RXs for the brand of non-steroid topicals. And we're very encouraged by this. I mean, I'll just reference this as comparison. If you look at like Opsalora, it was 28%. And I think what's more is that you look as far as Zareve and the MBRX decline quarter over quarter, we're basically flat, which is another strong signal. The other is, when you look at our refills, look at our total volume prescription of that, our refills are about 45%, which is, once again, very encouraging for us, not only on the NBRX, but also on the refills that are contributing to our TRX and our overall growth. You know, if I look within Q2 and I look at approximately the last three to four weeks, we've had very impressive NRX growth with Zareev, which, once again, is a great leading indicator of what's to come as far as TRX growth as we roll forward into the quarter. Great. Thanks.

Thank you. One moment for our next question. Our next question comes from the line of Oyer of Mizuho. Your line is now open.

Hey, guys, yeah, thanks for taking your questions. I have two, if I may. The first question is, could you maybe just help us understand or quantify the opportunity from the infant's atopic dermatitis conditions? I think, Frank, you mentioned it was a significant opportunity. how, and maybe just help us understand how you'll capture that opportunity. Is it primarily through the DERM Salesforce that you currently have or from building out the primary care pediatric Salesforce? That's the first question. Sure. Yeah. Go ahead. Did you have another one, Yeah, I do. The second question is, maybe Latha, the SG&A was lower than what I think we or the consensus expected, something like by 4 million. Now that you have the full Salesforce expansion, do you expect an uptick in the second quarter? Because I thought, if I heard correctly, I don't know what the starting point is, but you indicated that you were expecting a modest SG&A uptake in the back half of the year. So maybe just help us understand the cadence of spending for the year. Thanks.

Okay, thanks. So, Patrick, maybe why don't we start, if you wouldn't mind sharing maybe a dermatologist's perspective on the three to 24-month opportunity and the unmet need. And then, Todd, maybe you can address how we're going to get at that commercially. And then, Latta, if you could address his question around OPEX.

Sounds good, Frank. Yeah, so, you know, I think this three to 24-month group, and I'll let someone else kind of comment on the, you know, kind of absolute size of that group, but I think, you know, they are uniquely reflecting a patient population that has, you know, we're talking about essentially Crisabarol approved there, and then maybe five or six topical corticosteroids. So I think this really is a group that, as we've been out kind of talking to pediatric dermatologists, and these patients are not just managed by pediatric dermatologists, they're managed by a lot of dermatologists, dermatology PAs and NPs as well, that this is one where people really do struggle to be able to get these patients under control. Obviously, it's not a group that you want to jump to a systemic right away. They tend to have a higher body surface area. Their disease tends to evolve kind of quickly over time into a pretty high percent of involved skin. And kind of as we alluded to in the call, there's a really high sensitivity to exposure to corticosteroids right out of the gate. I mean, you know, these are very, very young patients and, you know, the developmental milestones are at the top of mind for caregivers. So really kind of finding something that fits into that mindset. I think there's a reprofile fits beautifully into that. And I think we kind of alluded to the fact that, you know, this is a way to really win the hearts and minds of prescribers, because if you can solve this problem for them, you know, I think it really helps with the overall lift for the brand and what it means for the field. So, you know, I think that's the DERM perspective. And, you know, as far as the overall size of the opportunity, I think I'll turn it over to you, Todd, to talk about that.

Yeah, thank you, Patrick. And I'll just reemphasize, as Patrick mentioned, this patient population is tremendously underserved. If you think about it, it's really just Eucharist, which burns and stings upon application, is available. And then top of course, steroids, which, of course, brings great concerns to a caregiver, you'll say, relative to steroid exposure. How we're going to drive this opportunity as we go forward, once we get the approval, will be across both the Dermatology Salesforce as well as the PCP and Pediatric Salesforce. Dermatology Salesforce, because we do have pediatric dermatologists, as well as other dermatologists that see this population and want to make sense that, you know, we're conveying there's a revalued proposition for this population. And then, of course, with our primary care and pediatric team, they'll be calling on pediatricians to make certain they create that awareness for the patient. And then in addition to that, you know what I'm saying, we'll be doing a lot of direct to consumer campaign. And when I say consumer, it's the caregiver. You know, we'll be making certain that we're reaching out and we're driving brand awareness of Zareev for this population to that caregiver to make certain that we know that it's available. And then in reference to the approximate size, it's about 2 to 2.5 million as far as the patients, the opportunity that sits here within this age group in atopic dermatitis.

Then, Latha, can you address Uy's question about the OPEX?

Hi, Uy. The SG&A for Q1 was slightly below consensus, just that we don't see a dramatic decline, so nothing to concern yourself there. The field force just started in Q2. You'll see a portion of that hitting Q2 actual, so sort of normalization of that. The expansion for the primary tier field force that'll happen in the second half is what the comment modest increase references. And some of the initiatives that Todd talked about, you'll see some of that expense also play out for the course of the year. So that's our feedback on SG&A being higher year-over-year.

Okay, thank you. Thank you. One moment for our next question. Our next question comes from the line of Serge Ballinger of Needham. Your line is now open.

Hi, good afternoon. Thanks for taking my question. The first one, just regarding coverage for Zoriv, do you expect to make any headways on what is remaining for Medicaid and Medicare coverage? Or is that a more of a 2027 event? Just curious, maybe if you can pull it forward to 2026. And then with the Salesforce expansion, you're going to be going to lower deciles prescribers. Just curious how they differ from the higher deciles. Obviously, volumes are lower, but do they tend to prescribe less topical products than the higher decile ones? Thanks.

Yeah, Todd, sorry to wear you out, but you want to take those, too?

Yeah, no, I'm happy to. They're great questions, so thank you. First one in reference to the coverage question and making headway relative to Medicaid and Medicare, you know, we will continue to make headway in Medicaid. You know, we can do that within 2026 as we continue to contract with these individual states relative to the fee-for-service Medicaid. We're currently in negotiations and conversations with some of those states we don't have on formulary. Relative to Medicare, it's a longer process. We have to contract with each independent Part D plan, and typically they do those formulary updates at the first of the year. So it is, you know, I'm saying likely going to be a January 1st, 2027, but there is opportunity with the Part B plans to be able to pull that forward into 2026. And so as previously communicated, we, Zareeve has access and approximately one third of the Part B plans. And it's our ambition to continue to accelerate that as we go forward and we'll make every effort to pull that forward into 2026. And then the other is, in reference to the Salesforce expansion, yes, you are correct. The ambition here is to be able to have a higher frequency, a higher level of engagement with the med-decile providers by not diluting that frequency on the higher-decile providers. And what mainly differentiates between high-decile and medium-decile is the opportunity to prescribe, meaning that the higher deciles have a higher patient base, higher patient load. They typically do tend to be more rapid adopters of branded products, but with this median decile providers, there's ample opportunity for us here to continue to expand Zareve and believe that that frequency will lead to higher adoption of Zareve.

Thank you.

Thank you. One moment for our next question. Our next question comes from the line of Richard Law of Goldman Sachs. The line is now open.

Hi, everyone. This is Tawani. It's not on for Rich. Thanks for taking the questions. The first one on the primary and pediatric care setting. I'm curious if you could speak more to what you're doing differently than CAWA in those settings. What areas were they not doing well that you think you can improve on? And then I have a follow-up.

Yeah. No, it's a great question. Thank you. I'm sorry, Frank. I just jumped in on that.

Thank you.

So what we're doing differently is we are, I mean, what I wouldn't reference it as what we're doing differently as it is what we're going to do to make certain that we set this primary care peach team up for success and that we can drive utilization as a read within these specialties is that, as mentioned, as we build this team at launch, we're going to be highly focused. We're looking and we've been able to build out the target list to make sure that we're going to be engaging the highest opportunistic primary care and pediatricians. And what I mean by highest opportunistic is this will be the PCPMPs that have the highest patient loads within the three indications in which Zareeve is approved. Not only that, but that these providers have demonstrated their willingness to adopt branded products. And these will sit within the major metropolitan areas. Also, we'll make certain that within each of these representative territories, that we'll have a defined number of targets where we can make certain that that representative can have the right frequency on each target to be able to drive trial and adoption of Zaree. once again, setting this up for success. And then as we deliver success, we'll continue to scale

from that point going forward. Okay, got it. Thank you. And the second one on the foam in vitiligo and HS, what efficacy benchmarks would you say would be sufficient to give you confidence

in continuing development in those two indications? Sure. Todd, you got to pass. Patrick, you want to

Thanks, Frank. Yeah. So as we're looking at vitiligo and HS, you know, keeping in mind that these are smaller open label trials, what we're really trying to understand is what does the Zareev profile look like relative to current standard of care treatments? And so for vitiligo, you know, we're really kind of looking at the responsiveness timing relative to Obsolura, we know that one of the big challenges for patients with vitiligo is how quickly that they're seeing a response in the skin, because that can really drive compliance. So once you get the patient onto the treatment, if they're not seeing the response that they want to, sometimes they'll fall off of their treatment. And I think that's where the mechanism of Pfizer-Eve with PD-4, kind of working both on the inflammatory component, but also, you know, we've seen some evidence, as we outlined earlier, some impact potentially on the actual melanocyte protection and pigment production is our hypothesis. So, for why it is that we might see an earlier response rate. So, we're kind of looking at what that profile is. Now, when we look at HS or hydradenitis supportiva, one of the things that we really want to be able to see is where are we moving these patients in the earlier stage of disease and how would that treatment, given that there isn't a really effective topical that's out there being used right now for patients with HS, where does that fit within the treatment paradigm that has emerged where many of those patients are pretty quickly being moved to systemics, even if they might have disease that might be able to be managed by an effective topical. So there I think we see a little bit more blue sky for that. And what we're going to try and outline as we get into Q4 for vitiligo is a pretty clear understanding of both what we're seeing from the response profile, but also where we see the commercial opportunity and how we would see that profile fitting into

the landscape. Yeah, maybe I could just add one additional thought to Patrick's comments. And I I think, you know, specifically in the HS case, and we saw this again with the Avalo data today, the systemic therapies are not particularly effective in this disease. So even patients on systemic therapy are often going to need adjunctive treatment. And Zarev is really unique in the topical space, you know, that it can be safely used in combination with systemic therapies. And, you know, the disease is often occurring in intertriginous areas, the groin, armpits, where, you know, doctors are much more reluctant not using topical steroids as well. So I think, you know, both early stage disease, but also adjunctive to systemic therapy as we're seeing in psoriasis and atopic dermatitis. I think Zareev has a uniquely compelling profile for that use case as well.

Thank you.

Thank you. I'm showing no further questions at this time. I'll now turn it back to Frank for closing remarks.

Okay, well, I will just thank everyone again for making time. I know it's a busy time of the year for you guys. So I appreciate you calling in and look forward to talking to you all in another quarter. Thanks. Bye-bye.

Thank you for participation in today's conference. This has concluded the program. You may now disconnect.