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Beta Bionics, Inc. (BBNX)

Q2 2025 Earnings Call· Thu, Jul 31, 2025

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Transcript

Operator

Operator

Good afternoon, and welcome to the Beta Bionics Second Quarter 2025 Earnings Conference Call. [Operator Instructions] As a reminder, please be advised that today's conference is being recorded. I would now like to turn the conference over to Blake Beber, Head of Investor Relations. Please go ahead.

Blake Beber

Analyst

Thank you. Good afternoon, and thank you for tuning in to Beta Bionics Second Quarter 2025 Earnings Call. Joining me for today's call are Chief Executive Officer, Sean Saint; and Chief Financial Officer, Stephen Feider. Both the replay of this call and the press release discussing our second quarter 2025 results will be available on the Investor Relations section of our website. The replay will be available for approximately 1 year following the conclusion of this call. Information recorded on this call speaks only as of today, July 29, 2025. Therefore, if you are listening to the replay, any time-sensitive information may no longer be accurate. Also on our website is our supplemental second quarter 2025 earnings presentation and updated corporate presentation. We encourage you to refer to those documents for a summary of key metrics and business updates. Before we begin, we'd like to remind you that today's discussion will include forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements reflect management's expectations about future events, our product pipeline, development timelines, financial performance and operating plans. Please refer to the cautionary statements in the press release we issued earlier today as well as our SEC filings, including our Form 10-Q filed today for a detailed explanation of the inherent limitations of such forward-looking statements. These documents contain and identify important factors that may cause actual results to differ materially from current expectations expressed or implied by our forward-looking statements. Please note that the forward-looking statements made during this call speak only as of today's date, and we undertake no obligation to update them to reflect subsequent events or circumstances, except to the extent required by law. Today's discussion will also include references to non-GAAP financial measures with respect to our performance, namely adjusted EBITDA. Non-GAAP financial measures are provided to give our investors information that we believe is indicative of our core performance and reflects our ongoing business operations. We believe these non-GAAP financial measures facilitate better comparisons of operating results across reporting periods. Any non-GAAP information presented should not be considered as a substitution independently or superior to results prepared in accordance with GAAP. Please refer to our earnings press release and supplemental earnings presentation on the Investor Relations section of our website for a reconciliation of non-GAAP measures to the comparable GAAP financial measure. Now I'd like to turn the call over to Sean for some opening remarks.

Sean T. Saint

Analyst

Thanks, Blake. Good afternoon, everyone, and thank you for joining us for our second quarter 2025 earnings call. We're excited to share with you all today our financial results for the second quarter as well as positive updates to our full year guidance for 2025. Starting with our performance in the second quarter, our team continues to execute at the highest level across all aspects of our business, and we made key advances commercially, clinically and in our innovation pipeline. We continue to see robust demand for the iLet and our efforts to expand the iLet's commercial reach resulted in a record number of new patient starts in the quarter in both the DME and Pharmacy channels and a record percentage of those new patient starts going through the pharmacy channel. In late June, we hosted our first Investor and Analyst Day, where we talked about the iLet's place on the continuum of user engagement from hybrid to fully closed loop and the continuum of system adaptation from static to adaptive algorithms. The iLet demands the least engagement from the user and delivers the most automated adaptation of any AID system, setting a new standard for our industry. We also highlighted the superior clinical outcomes of the iLet with our real-world data through the first 2 years of iLet's launch. We demonstrated that the iLet drove meaningful changes from baseline HbA1c to follow-up glucose management indicator or GMI, which is a proxy for A1c, regardless of our users' baseline A1c group, prior therapy or level of engagement with the iLet. We also shared outcomes for users treated by endocrinologists or primary care practices and the outcomes were virtually the same. We're extremely proud of those data and believe that iLet is the only pump in the market that's capable of…

Stephen H. Feider

Analyst

Thanks, Sean. Approximately 71% of our 4,934 new patient starts in Q2 came from people with diabetes that use multiple daily injections prior to starting the iLet. We look at this metric because it's an important representation of how much the iLet is expanding the market for insulin pumps and the results we're seeing reinforce our confidence that the iLet is addressing an unmet need in the market. Let's talk about pharmacy. In Q2, a high 20s percentage of our new patient starts were reimbursed through the pharmacy channel. We're continuing to see great traction from our pay-as-you-go model from PBMs and the underlying health plans that partner with those PBMs. Turning now to gross margin. In Q2, our gross margin was 53.8%, up slightly compared to 53.7% in the second quarter of 2024. While gross margin may look very similar between Q2 of this year and Q2 of the prior year, there are 2 points I'd like to highlight that are indicative of healthy underlying gross margin dynamics. The first to highlight is related to pharmacy. As we've discussed extensively in prior earnings calls, increasing our pharmacy mix is financially accretive over the medium- and long-term because we are reimbursed for the monthly supplies at a higher rate than in the DME channel. However, in the pharmacy channel, we forgo the upfront payment for the pump itself that we would have received if the pump went through the DME channel. This creates 2 dynamics: number 1, when we increase the percentage of new patient starts going through the pharmacy in any given quarter, the upfront revenue for the pump that we forgo creates a transitory headwind for our revenue and gross margin in that quarter. Number 2 is our existing pharmacy installed base generates substantially more revenue per month…

Sean T. Saint

Analyst

Thanks, Stephen. On June 30, CMS released a proposed rule for the 2026 durable medical equipment payment system, which includes provisions that may impact insulin pumps supplied to Medicare fee-for-service beneficiaries. To be clear, this proposal only applies directly to traditional Medicare fee-for-service, not Medicare Advantage, which is managed by private plans. Approximately 10% to 15% of our users are Medicare fee-for-service beneficiaries. So let's walk through the key components of the proposed rule and our perspective on them. There are 2 major elements in the proposal. First, CMS is proposing to implement a competitive bidding program for insulin pumps. Under this program, DMEs would submit bids to supply insulin pumps and CMS would set the reimbursement rate at the 75th percentile of the accepted bids. DMEs that bid above the price threshold set by CMS may be excluded from supplying pumps to Medicare fee-for-service beneficiaries in the bid geographic area. This is new for pumps and is designed to reduce overall cost to the system. Second, CMS is proposing a shift to a pay-as-you-go rental model for pumps, replacing the current model where CMS pays the DME supplier for the pump over a 13-month period, after which the patient owns the pump and CMS no longer pays for it. Under the new model, CMS would pay DMEs a fixed amount each month for the pump for up to 60 months instead of just paying for the pump over the first 13 months. This is designed to allow patients to switch pumps more easily and to shift attrition risk from CMS to the DMEs. In the new model, if the patient stops using the pump any time during the 60-month period, CMS no longer pays for it. Here's our view on the proposal. We support CMS' intent to modernize payment…

Operator

Operator

[Operator Instructions] Our first question will be coming from the line of Matthew O'Brien of Piper Sandler.

Matthew Oliver O'Brien

Analyst

And really nice quarter across the board here, everyone. So congrats on that. I did want to ask about a couple of things that might get a little bit of attention here from investors. Well, the first thing on the pricing side, it looks like the DME ASPs were quite strong in the quarter, but the pharmacy looked like it's a little bit below what I might have been modeling. So is there anything going on in the pharmacy channel specifically on the pricing side of note that we should really be thinking about? And then I do have a follow-up.

Stephen H. Feider

Analyst

Yes. So Matt, are you talking specifically about the iLet pharmacy price or the monthly supply kit ASPs or both?

Matthew Oliver O'Brien

Analyst

Both, but more so on the supply kit side.

Stephen H. Feider

Analyst

Yes. Okay. So on the iLet in the pharmacy channel, you did see a downtick -- so I'm going to just -- I'm going to comment on both. And the first one is on the iLet in the pharmacy channel. You did see a downtick in the ASP in that for that particular channel, because we're seeing more adoption from PBMs, which is evidenced by the uptick in the pharmacy new patient -- percentage of new patient starts. And when that happens, we no longer rebate the -- or sorry, we then issue a rebate for the iLet and the ASP in that particular channel then goes down over time. And so you have seen that, again, is indicative of the success that we're having in winning new patient starts and getting more traction in the pharmacy channel with, again, more PBM adoption and more underlying health plan adoption. There actually isn't anything -- and moving to the pharmacy supply kits, there's actually nothing about the ASP changing from Q1 to Q2 or nothing of no changing the ASP from Q1 to Q2. There is some stocking dynamic that was present in Q2 relative to Q1. And what you saw was some headwind or unfavorability in Q2 relative to Q1 from stocking. So that dynamic is probably what's contributing to your numbers there, Matt.

Matthew Oliver O'Brien

Analyst

Got it. Okay. That's good to hear. And then the other piece is just on the churn rate. It looks like it was about 5% in the quarter based on my math, which I know that could be wrong. But I just want to make sure the numbers are about right there. And then just anything you would call out on the churn side that might be a little higher or lower DME or pharmacy? And specifically pharmacy, are you seeing a little higher churn rate through that channel?

Stephen H. Feider

Analyst

Yes. So while I can appreciate that churn rate or the attrition rate that we have in the pharmacy channel, in particular, has a ton of impact on your model. And by the way, it's something that we monitor very closely at Beta Bionics. For reasons that are as simple as the industry doesn't -- or the diabetes industry doesn't report on attrition rates, Beta Bionics is not going to be the first pump company that does. So again, I understand that it's an important metric that you have in your model, but it's not something that we're commenting on. Here's what I will say in principle though, that I think highlights why we have a lot of confidence in our attrition rate or in our retention rate, I guess, to use a more positive connotation. Every single patient that we can send through the pharmacy channel, we do. So how this works logistically is when Beta Bionics gets a prescription for the iLet, we check to see if the patient is covered in pharmacy. We check to see if the patient is covered -- and if they are, we send that patient in pharmacy. If they're not, we send them through DME. What that's indicative of is that we know -- because we know what our retention rate is in the pharmacy channel, we know that it is the most advantaged channel for us financially, which is why we send every patient there that we can. So I'll just, again, make that point to emphasize that despite us not communicating our retention or attrition rates numerically, they're very good, and it's why we continue to prioritize pharmacy over DME.

Operator

Operator

And our next question will be coming from the line of Travis Steed of Bank of America.

Stephanie Laura Piazzola

Analyst

This is Stephanie Piazzola on for Travis. Congrats on a good quarter. Maybe just wanted to start out by asking about the guidance. You beat Q2 by almost $4 million and are raising the guide by $6 million at the midpoint. So maybe just talk about some of the drivers of that increased outlook in the back half of the year and the confidence in those. And then you gave some quarterly cadence commentary, which was helpful. But maybe if you could elaborate a little bit on the underlying assumptions of the Q3 revenue being higher than Q2 and the Q3 new patient starts similar to Q2.

Stephen H. Feider

Analyst

Yes, sure. So there's a lot in there. The first [ cut ] question you asked is about why do we have confidence in our guidance for the rest of the year, and we're raising guidance not just by the amount that we beat in Q2. So my first statement I'll say is we have a high degree of confidence in every bit of guidance that we communicate. So our revenue guidance for the remainder of 2025 is no different. As it relates to the Q3 new patient starts guidance and the revenue outlook for the rest of the year, I think kind of embedded in your question there, Stephanie, is you're asking, okay, so why are you forecasting or why are you guiding to a flat new patient start number when we're also expecting revenue to grow and the company has grown quarter-over-quarter. So I guess I'll answer that -- I'd give 3 reasons for that. The first one is -- in diabetes, as you're aware, seasonally, we tend to see Q1 being the weakest quarter relative to the other quarters throughout the year and then Q4 being seasonally the best quarter, whereas Q2 and Q3 tend to be kind of flat or neutral relative to one another. So there's nothing that we're noting about Q3 seasonality in our guidance. The second is that Q2 was a very strong quarter, which is part of the reason why for the flat new patient start guidance in Q3. And then the last point, the third point is just a reiteration of what I said actually to start my answer here, which is that any time we do give guidance, we set it at a level that we have a higher degree of confidence in our ability to achieve. And that new patient starts number is no exception.

Stephanie Laura Piazzola

Analyst

Yes. That's helpful. And then I just wanted to follow up on the CMS home health proposal for 2026. And maybe if you could just talk about some of the next steps as part of the process and I guess, a bit more on the expected timing of how long it could take for some of the things in the proposal to be implemented?

Stephen H. Feider

Analyst

Yes, sure. So yes, the next steps are -- CMS will receive comments from companies, DME distributors, in particular to the insulin pump industry. They'll see comments from companies like Beta Bionics as well as DME distributors. I think it's by the end of August is when those particular proposals -- or early September, I think, is when those responses are due. So that will happen. And then CMS will put together whether or not they choose to move forward with the proposal and implement -- if they do implement the competitive bidding process and then ultimately have -- make a ruling sometime in the future for when the new policy would be enacted. And our expectation is the earliest that would be is 2027.

Operator

Operator

And our next question will be coming from the line of Michael Polark of Wolfe Research.

Michael K. Polark

Analyst

I'm interested for a generic comment on kind of same-store new store dynamics as you assess the sequential growth in starts to what -- how much would you attribute to kind of increased penetration with existing prescribers versus the sign-up of new prescribers?

Stephen H. Feider

Analyst

Yes. Mike, good question. You're not going to love my answer because I'm not going to answer it numerically. But we're actually seeing the dynamic of both happening. So we did -- we did expand our field sales team relative to this time last year. So there is an element of new territories where Beta Bionics' field sales presence was before this new expansion, still had a lot of white space throughout the country. So like areas that had no field sales presence at all. So there is a new store dynamic as a result of that. But we are seeing across the board, an uptick in prescriber adoption within territories that we already do operate in. And again, we do quantify these things but they're not KPIs that we do communicate externally. But absolutely, the message of iLet simplicity is resonating. HCPs are seeing good results from their patients and becoming more comfortable prescribing the iLet, and I think that's evidenced by our results. So the dynamic is actually both, Mike, but I'm not going to quantify them for you.

Michael K. Polark

Analyst

Understood. If I can follow up, I appreciate all the comments on the Medicare proposal. I know the response to this one will probably lean squish, but to the extent this moves forward substantially as envisioned, and I'm talking specifically about the shift to pay over time. To what extent would this Medicare fee-for-service standard create risk that the commercial DME or Medicare Advantage contracts over time head in this direction as well? How do you assess that path?

Stephen H. Feider

Analyst

Yes. Good question. Look, nowhere in that proposal -- it doesn't mention anything of that nature. And we don't see any associated risk from this particular proposal stemming into commercial plans or within into the pharmacy model. I will just highlight that a pay-as- you-go model, like that's being proposed here in the CMS proposal, which is what this rental model is, as Sean, I think, well outlined on the -- in the prepared remarks. That's working quite well already in the pharmacy system, where Beta Bionics even and all patch pumps are getting reimbursed through -- well, I guess, in the case of patch pumps, their Medicare Part D coverage, which Beta Bionics isn't -- or our iLet is not. But we're already seeing in Managed Medicare coverage on the iLet through a pay-as-you-go model that exists in pharmacy. And so I think in the event that the CMS wanted to shift to a pay-as-you-go model into the pharmacy channel, they would use an already existing infrastructure that's already in place today. So I guess, twofold to that answer, Mike.

Sean T. Saint

Analyst

I think I'd like to add to that one, Stephen. It's very hard for us to assess the risk of that happening. But I think what we've done is insulate ourselves from it with our pre-existing transfer to a pay-as-you-go model proactively. There are reasons that it makes a ton of sense and makes a lot of sense for us as well. And again, we're already doing that proactively. So I can't speak so much to the risk of it, but I will say that we're preparing ourselves properly for it, if it were ever to happen.

Operator

Operator

And the next question will be coming from the line of David Roman of Goldman Sachs.

Unidentified Analyst

Analyst

This is [ Phil ] on for David. I thought I'd start with the type 2 comments that you ended with Sean. Stronger contributor as a percentage of new patient starts with a much stronger new patient start number overall. I was just hoping you could talk a bit more about the market dynamics going on there, the success that you're having, albeit off-label and what would kind of act as a trigger or what we need to hear for a bigger push towards type 2?

Sean T. Saint

Analyst

Yes, it's a great question, Phil. I think what I'll say, given that iLet obviously is off-label in that regard, I'm going to make comments -- I'm going to keep my comments more general in terms of how physicians run their practices. I think it's a true statement that physicians are responsible for understanding the different tools they have available to them and where they can best be used and what they do and with whom, and prescribe them as they see fit. And that's why the off-label rules are as they are. They have every right to do that. I don't want to get into the specifics of iLet, but I think that, that's clearly being taken into account in the prescribing patterns that we're seeing as the awareness of iLet generally and other products becomes more broadly known. So sorry for the slightly vague answer, but, yes, type 2, so...

Unidentified Analyst

Analyst

No, I think that's helpful. The second one is probably for Stephen. It's a different way of the guidance question and appreciate that pharmacy mix in a given quarter will matter to this question. But given the growing proportion of recurring revenue that's coming in, it is going to be the case in this revenue ramp period that if you see sequential increase in patients, there should be even more so a sequential ramp in revenue to accompany that, right, because you have the pump revenue as a supplement to a growing base of recurring revenue. I guess, said differently, do you have better visibility moving forward into the guidance assumptions you're giving because of the relative scale of the recurring versus onetime-only revenue over time here?

Stephen H. Feider

Analyst

Yes, great question. Both answers are yes. Yes, we see upticks in our revenue if we had flat new patient starts quarter-over-quarter because we have this powerful installed base that's generating recurring revenue in the pharmacy channel. And yes, our business is more predictable if a higher percentage of our revenue is coming from pharmacy because that -- that's a recurring revenue stream.

Unidentified Analyst

Analyst

Okay. Great. Just one clarifying one. The pay-as-you-go model just from a timing standpoint could go into effect in '26, while the comment on the competitive bidding process not going into place was '27, right?

Stephen H. Feider

Analyst

No, actually. We would imagine that those -- the competitive bidding process would end up dictating the rental model -- or that would end up being a [ pre-req ] for the rental model going into place. And so my comment on when we expect -- 2027 being the earliest we would expect this to go into adoption, it means the policy in its totality. Competitive bidding, which then leads to a rental model and then that actually starts selling through that rental model in 2027 at the earliest. I'd say, that's very speculative, but that's what we think.

Operator

Operator

And our next question will come from the line of Frank Takkinen of Lake Street.

Frank James Takkinen

Analyst

Congrats on the great quarter and increased guidance. I wanted to start with one more on type 2s, and I appreciate the sensitivities given it's off-label, but with how good that number has been trending. I was hoping you could help us understand a little bit more of maybe where that strength is coming from? Is that the primary care channel? Is that patient group using the pharmacy benefit channel more? Or anything else specific to call out that has increased the use in that channel?

Stephen H. Feider

Analyst

Yes. Okay. So Frank, we have to be a little careful here as we don't have a type 2 indication. So I don't want to sound like we're promoting the iLet for type 2 use. And I'll just reiterate what Sean said about doctors have the ability to prescribe what they want. So I'm not going to answer your question too thoroughly. But yes, absolutely, the iLet is -- when it is being adopted for type 2 patients, it's happening in both the primary care channel as well as the endo channel, similar to how the iLet is, frankly, today.

Frank James Takkinen

Analyst

Okay. That's helpful. Understood. And then just secondly, maybe an update on sales force hiring. I appreciate the color and update you guys provided today, but maybe talk about kind of sales force hiring expectations.

Stephen H. Feider

Analyst

Yes. So we started the year with 43 sales territories, we ended the year with 63 -- sorry, ended the first quarter with 63 sales territories, and we still ended this quarter with 63 sales territories. You're not going to see a massive uptick in our territory expansion for the remainder of the year. We will likely expand again in early next year.

Operator

Operator

And our next question will come from the line of Jeff Johnson of Baird.

Jeffrey D. Johnson

Analyst

I think she said, Jeff. I hope you're hearing me okay here. Just maybe one clarifying question. You talked about maybe that pharmacy channel mix not increasing at the same rate in the back half of the year as we saw in the first half of the year. Part of that due just to the strong uptake you saw through the Prime contracts that started in February. As you have expanded access through additional payers here, why is the Prime contract different maybe than some of those other payers? Or said another way, if you're pushing as many of your patients who do have pharmacy coverage into the pharmacy channel, why can't that rate of push and kind of that rate of adoption continue to move in the same sequential kind of pattern?

Stephen H. Feider

Analyst

Yes. Really good question. Okay. So the Prime deal is quite different than what we've seen with other PBM contracts in that when -- when we -- so let me actually I'm going to back up one second. To gain pharmacy coverage and the way that we define coverage is new patient starts going through the pharmacy channel. There's 2 really important steps that have to happen in order for us to obtain that coverage. The first one is we need the PBM agreement. And then the second is we need the underlying health plans that partner with that PBM. In the case of Prime, both step 1 and 2 happened at the same time. In the case of the other PBM agreements and notably the one that Sean brought up on the call -- in his prepared remarks that will go into effect, the large PBM agreement that goes into effect on July 1, that is not the case. We -- step 1 happened, but the underlying agreements with the health plans are a separate sales cycle that we need to go win and then add at future dates. Now for the other PBM contracts that we have that are already in place and have been historically, we continue to tick off underlying health plans that are a part of that step 2, which is part of the reason you see the sequential uptick that we've had historically in pharmacy adoption. It's not just because of the Prime deal that we had in the first half of the year, but also the other PBMs, we continue to layer on more and more underlying plans.

Jeffrey D. Johnson

Analyst

All right. That's helpful. That explains it. And then just one other question, I guess, on the competitive bidding in the pay-as-you- go model. One of your competitors out there is talking about potentially as a tubed pump getting in Medicare Part D. You guys, obviously, on the pharmacy channel are kind of taking a monthly on the PBM side. What would it take? Is there any possible way to get into Part D as opposed to Part B? And does your read of the documents -- of the CMS documents suggest that Part D will not be subject to competitive bidding? That was our read, but I think there's a couple of varied opinions on some of the wording in that document.

Stephen H. Feider

Analyst

Yes. So what would it take? We've always said that the longest train or the big train to turn in order for durable insulin pumps to start becoming reimbursed primarily through the pharmacy channel was Medicare Part D treatment, which today, durable -- for those that aren't aware, the iLet and durable insulin pumps are considered Part B covered. Jeff, frankly, I don't really want -- to predict when that train turns and we start seeing durable insulin pumps be considered Part D treatment, I don't really want to predict. I think this does maybe start the discussion and maybe move it faster than it otherwise had been because it's clear that CMS is interested in a pay-as-you-go model, which is what the pharmacy channel really enables. But I still do think that there's nothing -- and so -- but I don't really want to give a time line to predict when that happens. I also, by the way, which leads me to actually to your second question, nowhere in that proposal does it mention anything about Part B or insulin pumps, notably patch pumps that are considered Part D treatment. It doesn't mention them at all in that proposal. So I would have no reason to believe that the proposal is insinuating anything about patch pumps or any Part D treatment insulin delivery device because, frankly, it just don't mention it at all.

Sean T. Saint

Analyst

I have a higher-level conversation -- or comment on that, Jeff. I think we have 2 concepts here, and they overlap, but they're not the same thing, but they are related. The first is durable versus patch pumps or durable versus disposables if you prefer. We've all come to know and understand what that means. However, there's also the concept of a durable pump model, meaning an upfront payment followed by a smaller supply payment versus a pay-as-you-go model traditionally applied to a disposable system, and that makes all sense in the world. So I think what I'm saying is that as durable pumps get paid more in a pay-as-you-go model, the specific distinction of a durable versus disposable device start to not matter because that's not really what they were getting at originally, right? These -- the reasons for these statements have evolved over time. The pay-as-you-go model is the original definition of that I believe. But -- so what does that mean? I don't know, we'll have to wait and see.

Operator

Operator

And the next question will be coming from the line of Richard Newitter of Truist.

Felipe Raul Lamar

Analyst

This is Felipe on for Rich. I guess just like -- off the last point, I was wondering if you could just help us better understand in terms of new starts, because your presence in pharmacy is a lot larger compared to some of your durable pump competitors. So I'm just wondering like is removing that upfront cost maybe a decision driver for new MDI patients thinking about starting on durable pumps? And then just one follow-up.

Stephen H. Feider

Analyst

Yes. Yes, absolutely. If you were to ask me a question, why are we seeing such an uptick in new patient starts? Why do we continue to exceed expectation or even our own expectations on new patient starts? I would give you 2 reasons. One is the iLet is absolutely resonating for its highly differentiated characteristics, meaning it's simple to use. The clinical results are fantastic. And so as doctors try it, they get great results and they prescribe more of it. So really simple. But the other dynamic is that absolutely, the pharmacy coverage -- the availability of the pharmacy reimbursement model for patients makes it so dramatically easier for a patient to purchase the iLet either to switch from their other durable pump, by the way, because they're not locked into a 4-year warranty period or just simply because the out-of-pocket is so much less than it would be for the iLet and DME that it does create a tailwind for new patient starts, and that's a large driver of our new patient start success.

Felipe Raul Lamar

Analyst

And then just on the gross margin guidance, you're upping your pharmacy contribution. So I'm just wondering like what's the main driver of bringing your gross margin guidance higher with that headwind?

Stephen H. Feider

Analyst

Yes. We continue to see benefit from a lower cost per unit with scale. And so we just -- we have a really strong sense of what our cost per unit is going to be for the remainder of the year and hence, confidence in our ability to continue to increase it.

Operator

Operator

And our next question will be coming from the line of Jeffrey Cohen of Ladenburg Thalmann.

Jeffrey Scott Cohen

Analyst

Sean and Stephen, just one from our standpoint. You talked about the field sales reps and territory coverage. And when you think about the back half, could you kind of walk us through how you may expect the OpEx to look as it relates to Q3 and Q4 related -- relative to the first half?

Stephen H. Feider

Analyst

Yes, sure. So with G&A expenses and sales and marketing expenses, you won't see a big uptick in OpEx for the rest of this year in Q2 -- in Q3 and Q4. With R&D, you may see an uptick in Q3 and Q4 associated with the Mint program as well as the bihormonal project. So again, we'll get -- we'll start to get more and more leverage out of our sales and marketing costs as well as the G&A costs, but there will be some lumpiness to bihormonal or as a result of bihormonal and the Mint projects.

Jeffrey Scott Cohen

Analyst

Okay. Got it. As it looks over the next 2 to 6 quarters, would you expect R&D to be lumpy?

Stephen H. Feider

Analyst

Yes.

Operator

Operator

Thank you so much. There are no more questions in the queue. And that does conclude the presentation for today. Thank you all for joining. You may now disconnect.