G1 Therapeutics - Q1 2024
May 1, 2024
Executive Summary
- Q1 2024 total revenue was $14.476M, with COSELA net product sales of $14.079M and license revenue of $0.397M; diluted EPS was $-0.20. Management reaffirmed FY 2024 COSELA net revenue guidance of $60–$70M and projected cash runway into Q3 2025.
- Versus consensus, revenue missed by ~$0.6M and EPS missed by $0.01 (consensus: revenue $15.07M, EPS $-0.19). Bold miss: revenue and EPS were modestly below Street expectations.
- Operationally, vial volume grew 4% sequentially; upcoming catalysts include mature Phase 2 TROP2 ADC combo data at ASCO (early June) and final PRESERVE 2 OS analysis in 1L mTNBC expected late Q2 2024, potentially enabling an sNDA if positive.
- CEO emphasized focus on building category leadership in TNBC and maximizing COSELA uptake in ES-SCLC; CFO detailed lower OpEx and reiterated cash runway into Q3 2025 as a support for execution ahead of clinical readouts.
What Went Well and What Went Wrong
What Went Well
- COSELA net product revenue rose to $14.079M, up ~34% YoY versus Q1 2023; vial volume grew 4% QoQ, supporting revenue trajectory and guidance reaffirmation.
- Operating discipline: total operating expenses fell to $23.524M (vs. $38.692M in Q1 2023) with R&D at $7.318M and SG&A at $15.127M, driving a markedly smaller net loss of $10.219M YoY.
- Strategic pipeline/events: mature ADC combo (trilaciclib + sacituzumab govitecan) efficacy update slated for ASCO; final PRESERVE 2 OS analysis timing advanced to late Q2 2024 after FDA methodology alignment, with sNDA intent if positive.
- “We have two important readouts later this year…ASCO poster…followed by the readout of our Phase 3 PRESERVE 2 1L mTNBC trial late in the second quarter of this year” — CEO Jack Bailey.
What Went Wrong
- Missed consensus: revenue $14.476M vs. $15.07M consensus; EPS $-0.20 vs. $-0.19 consensus. Bold miss: both revenue and EPS slightly below Street.
- Cash declined to $65.186M from $82.156M at year-end; although CFO flagged an $8.7M debt paydown tied to borrowing base limits, it still represents higher cash usage, with operational cash burn of ~$8M for the quarter discussed on the call.
- Executional headwinds and regional variances cited by Commercial leadership impacting growth consistency despite overall progress; management noted actions taken to address these within the quarter.
Transcript
Operator (participant)
Good day, and thank you for standing by. Welcome to the G1 Therapeutics first quarter 2024 financial results. At this time, all participants are in listen-only mode. After the speaker's presentation, there will be a question-and-answer session. To ask a question during the session, you will need to press star one one on your telephone. You'll then hear an automated message advising your hand is raised. To withdraw your question, please press star one one again. Please be advised that today's conference is being recorded. I would now like to hand the conference over to speaker today, Will Roberts. Please go ahead.
Will Roberts (VP of Investor Relations and Corporate Communications)
Thank you, Victor. Good morning, everyone, and welcome to the G1 conference call to discuss our first quarter 2024 financial results and business update. The press release on these financial results was issued this morning and can be found in our news section of our corporate website, g1therapeutics.com. On this morning's call, the team will provide a business overview of the 2024 first quarter, including an update on our commercial progress and clinical programs in that period with COSELA, which is approved and commercially available to decrease the incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum etoposide-containing regimen or topotecan-containing regimen for extensive-stage small cell lung cancer. A Q&A session will follow the prepared remarks. Before we begin, I want to remind you that today's webcast contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.
Such statements represent management's judgment as of today and may involve risks and uncertainties that could cause actual results to differ materially from those expressed in or implied by these statements. For more information on such risks and uncertainties, please refer to our filings with the Securities and Exchange Commission, which are available from the SEC or on our corporate website. Any forward-looking statements represent our views as of today, May 1st, 2024. Joining me on the call today are Jack Bailey, our Chief Executive Officer; Andrew Perry, our Chief Commercial Officer; Dr. Raj Malik, our Chief Medical Officer; and John Umstead, our Chief Financial Officer. I'll now turn the call over to Jack. Jack?
Jack Bailey (CEO)
Thanks, Will. Good morning, everyone, and thank you for joining us on the call today. From a commercial perspective, we continue to identify and execute on growth opportunities for COSELA. As you will hear from Andrew, our vial volume growth in the quarter was 4% over the fourth quarter of 2023 due to some challenges that he will speak to shortly. But as a result of the impact of the actions we've taken and the more recent sales trend, we remain confident in our 2024 net sales guidance of $60 million-$70 million. We are committed to expanding usage of COSELA in its first indication in extensive-stage small cell lung cancer, and assuming we continue to achieve our internal forecasts, expect to drive G1 to profitability and cash flow positivity later next year.
Now, as you'll hear from Raj, we also remain focused on the opportunity for category leadership across the spectrum of triple-negative breast cancer, and in that regard, look forward to two important upcoming data readouts over the coming months. First, we've shown promising results thus far in our ongoing phase II trial when trilaciclib is combined with the ADC sacituzumab govitecan, including meaningful improvements in median overall and 12-month survival. As you saw this morning, we are excited to provide the updated results in a poster at ASCO 2024 in early June. Next, if the final results from our ongoing phase III PRESERVE 2 trial of trilaciclib are positive, they would be amongst the most significant data generated in the first-line metastatic setting across PD-L1 status, and a compelling data set for people living with this extremely aggressive disease.
As Raj will discuss, based upon recent interactions with the FDA regarding the inclusion of events from patients enrolled in Ukraine, these results are now expected late in the second quarter of this year. Finally, as you saw in a press release earlier today, we've outlicensed the global rights to lerociclib, excluding the Asia-Pacific region, to an early-stage transomics company called Pepper Bio. Through this transaction, Pepper Bio gains exclusive rights to develop, manufacture, and commercialize lerociclib in those areas for all indications except for certain radioprotective uses. They've identified CDK 4/6 as a key pathway for hepatocellular carcinoma through their proprietary data platform. Lerociclib will now be their lead clinical stage asset to complement their early stage discovery pipeline. On today's call, Andrew will provide an update on our recent commercial efforts.
Raj will provide the status of our ongoing TNBC trials and remind you of the timing of the data from each. John will then provide the financial results for the quarter, including our revenue, expense, and cash expectations, along with a review of financials associated with the Pepper Bio transaction. Finally, I'll be back for some concluding comments. With that, I'll turn the call over to Andrew.
Andrew Perry (Chief Commercial Officer)
Thank you, Jack. I'm glad to take this opportunity to update you on our first quarter 2024 performance, which was a quarter where we made significant headway in parts of our commercial business, although in other areas, we also faced some short-term challenges. Our goal in Q1 was to build on the strong double-digit quarter-over-quarter vial growth, which we delivered in Q4 of 2023, and to set up growth opportunities, which will help us deliver our full-year goals. We were largely successful in these objectives with some regional and segment variance, driven by some executional headwinds, which we took actions to address within the quarter. And while our vial volume grew, it should have been closer to double digits this quarter if we had executed better in several areas.
As a reminder, in first-line extensive-stage small cell lung cancer, the maximum duration of chemotherapy is less than 90 days. So our quarterly growth relies on building a new patient base every quarter and then creating additional breadth and depth with new or existing accounts in order to grow. Beginning with sales volume, we ended Q1 with 4% overall vial volume growth compared with Q4 2023. The low growth was attributable to three factors. First, we added too few new patients over the holiday period of December into January, which then impacted the number of continuing patients through the quarter. Secondly, we had a slow start with several large customers, primarily in the Southeast. These customers typically comprise a fifth of our volume, and their orders were below the levels we would expect in the first part of the quarter.
Thirdly, three of our contracted customer networks performed below expectations. In each case, I will outline the actions we took to address the executional gaps. Firstly, we deployed three new sales representatives at the beginning of January. Secondly, we invested in a significant digital advertising push with increased display ads in high potential geographies, including the Southeast, as well as a digital and field campaign focused on driving depth with existing COSELA prescribers and customers affiliated with contracted accounts. Thirdly, we met with senior management at our large customers in the Southeast to address any educational or operational gaps which could be slowing sales growth. Finally, we enhanced several of our existing contracts and executed two new community network contracts, including one in February, which has been immediately successful in significantly growing volume.
The slow start to the year in the Southeast was offset by almost 30% growth in our West region, which comprises around a quarter of our volume. Three of six territories in the West region grew more than 50% in the quarter. As a result of this success, we added an additional headcount in our West region, focused on the Texas market, which continues to represent an enormous opportunity. We also saw double-digit growth in the customers covered by our expanded strategic accounts function, which combines specialist knowledge of oncology pharmacy with extensive health systems experience. Those customers grew over 20% during the quarter and now comprise roughly 20% of our overall volume. Going into Q2, we added an additional set of customers to their mix, where we believe this team can accelerate systematic adoption.
Focusing on the top 100 customer organizations, which represent around half the volume opportunity in the market, we added two new top 100 customers during Q1 and another one in April, meaning 78 of the top 100 have ordered COSELA launched to date. Sixty-three top 100 customers ordered during Q1, which jumped up from 56 in Q4, the highest number of top 100 customers to order in a quarter since launch. Our proportion of business in top 100 stayed similar to Q4 at 57%. Across our business, we added over 50 new accounts in total, which is similar to the last few quarters. Our estimate of COSELA patient share remains around 13% in the first line market, demonstrating that there remains significant opportunity for growth.
Moving into Q2, we saw a return to stronger growth in March, and April has been our highest month for both volume and ex-factory sales launched to date. The large customers in the Southeast who started slow in Q1 are back to growth at over 30% quarter-to-date, and our contracted business is also growing in double digits quarter-to-date. With the actions we have taken with three new top 100s, and for the first time, more than 60 top 100s using COSELA during the quarter, we're confident in continued growth and our guided product revenue target. I'll now pass the call to Raj.
Raj Malik (Chief Medical Officer)
Thanks, Andrew, and good morning, everyone. Today, I will provide the status of our ongoing clinical trials and our expectations for the timing of results. For our phase III PRESERVE 2 trial in combination with gemcitabine and carboplatin, as we mentioned on our last call, the boundary hazard ratio for a positive result at the final analysis is 0.67. As a reminder, the hazard ratio for the pembrolizumab arm of KEYNOTE-355 in the intent-to-treat or ITT population was 0.89, and the FDA-approved PD-L1 positive population was 0.73. So a positive result in PRESERVE 2 would mark the biggest improvement in overall survival to date in first-line metastatic triple-negative breast cancer.
Regarding this trial, we recently received feedback from the FDA recommending that the final analysis should be conducted in the ITT population, which includes the survival events from patients that were enrolled in the Ukraine, rather than the modified ITT population that would have excluded them. Subsequent to our February financial results call, we reached agreement with the FDA on the statistical methodology for the overall survival analysis incorporating these events. As a result, we have amended the protocol to account for these changes, and we now expect that the final overall survival analysis will be conducted at the end of the second quarter of 2024. We will announce the top-line results via press release, and if positive, look forward to a more robust presentation of results at a medical meeting later in 2024.
Assuming we achieve the overall survival endpoint, we will meet with the FDA to discuss the results and our plans for a supplemental NDA filing as soon as possible thereafter. Next, regarding our phase II trial of trilaciclib in combination with the Trop-2 antibody-drug conjugate sacituzumab, we're happy to announce this morning that the updated results have been accepted for a poster presentation at ASCO in early June. As a reminder, in January, we described promising initial data, including meaningful improvements in median overall survival and 12-month survival among patients receiving trilaciclib in combination with sacituzumab, compared to historical results for the ADC alone, and we are excited to update these initial results at ASCO. Our measure of a successful trial would be an approximately 3 months or more improvement in median overall survival over historical results with sacituzumab.
We believe that such a result would be of interest to companies developing Trop-2 ADCs, who are pursuing development partnerships with us to move this combination into pivotal trials in triple-negative breast cancer and beyond. We are also very interested in exploring efficacy in various subsets of patients, such as those treated with prior checkpoint inhibitors or CDK4/6 inhibitors. These types of exploratory analyses, which will be included in the ASCO results, could be helpful in designing future clinical trials of trilaciclib plus Trop-2 ADC combinations. We look forward to both readouts, as positive results from these trials would enable us to build category leadership in triple-negative breast cancer. With that, I'll turn the call over to John for an update on our financial results. John?
John Umstead (CFO)
Thanks, Raj, and good morning, everyone. As Will mentioned, full financial results for the first quarter of 2024 are available in this morning's press release and will be in the 10-Q, which we expect to file after market close. Net sales of COSELA were $14.1 million for the first quarter of 2024. This compares favorably to $10.5 million in net sales of COSELA in the first quarter of 2023, representing an increase of 34%. Our total revenue for the first quarter of 2024 was $14.5 million, which compares favorably to $12.9 million in the first quarter of 2023.
Our total operating expenses were $23.5 million in the first quarter of 2024, compared to $38.7 million for the same period in 2023, comprised of the following: $1.1 million in cost of goods sold, compared to $1.5 million for the same period in 2023, $7.3 million in research and development expenses, compared to $15.5 million for the same period in 2023. This change was primarily due to continued wind-down of previously completed studies. And lastly, $15.1 million in selling general and administrative expenses, compared to $21.8 million for the same period in 2023. The decrease in SG&A expense was primarily due to decreases in personnel costs and medical affairs and continued optimization of our commercialization activities.
Regarding our cash position, we ended the first quarter with cash, cash equivalents, and marketable securities of $65.2 million, compared to $82.2 million as of December 31st, 2023. It is important to note that this current cash balance of $65.2 million reflects an $8.7 million dollar paydown of our debt facility during the quarter due to the borrowing base limit tied to our trailing three-month revenue. However, by reducing our principal, we will realize cash interest savings this year of almost $1 million. Based on our current revenue projections, we do not anticipate having any further pay downs until required principal payments begin in December of this year. Absent this paydown, our operational cash burn totaled approximately $8 million for the quarter. Next, regarding our revenue, expense, and cash runway guidance for 2024.
As previously stated, we remain confident in our net sales revenue guidance of between $60 million and $70 million for 2024. There is no change to our 2024 gross to net expense percent adjustments. We anticipate receiving a $5 million milestone payment from Genor in the back half of 2024, following their commercial approval of lerociclib in China. If approved, we would begin receiving royalties on sales of lerociclib in the territory. Regarding expenses for 2024, we currently expect operating expenses to be 15%-20% lower than that of 2023. This is driven by reduced R&D spend, in addition to continued optimization of our cost structure following previously targeted headcount reductions while continuing to invest in the commercial organization.
We continue to expect a 2024 year-end cash, cash equivalents, and marketable securities balance in the range of $50 million-$60 million. Based on the foregoing, we expect that our cash runway will take us into the third quarter of 2025. This cash runway includes anticipated TNBC filing and launch-related costs, but it does not include any TNBC-associated revenue. Finally, Jack mentioned earlier in the call that we have outlicensed lerociclib to Pepper Bio, excluding the Asia-Pacific countries, which previously outlicensed to Genor. G1 expects to receive upfront payments of mid-single-digit millions within 12 months, and we are eligible to receive up to $135 million upon achievement of certain development and commercial milestones. In addition, we will receive a double-digit royalty on aggregate annual net sales of lerociclib.
With that, I'll turn the call back over to Jack for some closing comments. Jack?
Jack Bailey (CEO)
Thank you, John, Raj, Andrew, and Will. And as always, I also want to recognize the cancer community. We are thankful for the opportunity to be a part of your journey. Now, as you heard from Andrew, we are encouraged by the continued growth and acceptance of COSELA in our top 100 accounts, the return to expected ordering patterns in April by some large customers in the Southeast after a slower than expected first quarter.and the immediate impact of our strategic accounts functions.
But while our commercial team continues to execute on growing the product in its first indication, our corporate focus must stay on the upcoming clinical results from our ongoing TNBC trials that, if positive, could build category leadership in triple-negative breast cancer. To that end, we look forward to presenting the mature survival results from our phase II trial of trilaciclib in combination with the Trop-2 ADC, sacituzumab govitecan at ASCO in June. We believe that an improvement in overall survival of approximately three months or more due to the addition of trilaciclib to that ADC would be a striking success and would allow us to pursue development partnerships to move the combination of trilaciclib and Trop-2 ADCs into pivotal trials.
Furthermore, we expect final results from our ongoing phase III PRESERVE 2 trial in first-line triple-negative breast cancer late in the second quarter of this year. If positive, we would move quickly toward filing of an sNDA. Thank you for your time this morning. We will speak again in this format on the second quarter 2024 call in August, and we'll see many of you at ASCO or on our upcoming non-deal road shows. With that, I'll close the call and turn it over to Q&A. Operator, would you please remind our listeners how to ask a question?
Operator (participant)
Thank you. And as a reminder, to ask a question, you will need to press star one on your telephone and wait for a name to be announced. To withdraw your question, please press star one one again. Please stand by. We compile the Q&A roster. One moment for our first question. Our first question comes from the line of Gil Blum from Needham. Your line is open.
Gil Blum (Senior Biotech Analyst)
Good morning, everyone, and thanks for taking our questions. Maybe, maybe a quick one on the commercial aspect here. Would you say that we're starting to see some level of seasonality with COSELA? I'm kind of focusing on the remarks regarding the holidays and how that affected the patient pickup.
Andrew Perry (Chief Commercial Officer)
Thanks, Gil. No, no, I would not say that. You know, it takes us a couple of months in the claims data to diagnose when we see a drop in new patients. We diagnosed that issue around February, and we're able to, obviously, immediately act on it. I don't think that there's any reason to think that in any way this is a seasonality issue. This is about our ability to execute, which we have to continue to improve every quarter. What we have seen, of course, though, during Q1 was some great enhancements in our execution in some parts of the country and in some segments of our business, including in our West business and our strategic accounts business, and actually in our academic sector as well, which also grew during the quarter. So, so yeah, I hope that answers your question.
Gil Blum (Senior Biotech Analyst)
It does. That was very helpful. And as to the, you know, readout for the triple-negative breast cancer study, what details do you think you're gonna include in that readout? And will those details and the level of disclosure depend on whether the study is successful? Thank you.
Raj Malik (Chief Medical Officer)
Yeah. Hey, Gil, Raj here. Yeah, so we plan to include enough in the press release, really for the investment community to get a sense of what the results were. We always have to balance this with presenting the full set of data at a medical conference. So obviously, the degree of improvement in overall survival, some important subsets, some comments on safety, obviously, those types of comments. But it should be a full disclosure.
Gil Blum (Senior Biotech Analyst)
Okay, excellent. That's all from us today. Thank you.
Operator (participant)
Thank you. One moment for our next question. Our next question will come from the line of Joseph Thome from TD Cowen. Your line is open.
Joseph Thome (Managing Director)
Hi there. Good morning, thank you for taking my questions. Maybe one around the inclusion of the Ukrainian patients in the TNBC study. Maybe can you just give us an idea of what proportion of patients were from Ukrainian sites, and whether the company was advocating kind of one way or the other to do the ITT or the mITT population? You know, were there any issues with, you know, getting patients from or data quality or anything like that? Thanks.
Raj Malik (Chief Medical Officer)
Yeah. Hey, Joe. So there were 13 patients that were enrolled in Ukraine. So we had, you know, initially proposed the modified ITT population, which would have excluded these patients and obviously the events from these patients. The agency recommended that we include the events from these patients. And so it was really the discussion back and forth on how to do that, because there are a variety of approaches to do that. And that's kind of what resulted in our timeline. But in terms of, you know, we're obviously blinded to the data. We remain confident in the results. So it was a relatively small number of patients, 13 out of 187. So yeah, we feel, we feel confident in the data.
Joseph Thome (Managing Director)
Great. Then maybe just one on the combination with Trodelvy and sort of the path forward there. I know you indicated some potential partnership interest if the data are positive and, you know, kind of hit that three-month benchmark. Maybe where are you in terms of potential partnership discussions, and is there a path forward for a combination without a partner, or would you need a partner to move toward a phase three? How are you thinking about that?
Jack Bailey (CEO)
Yeah. Thanks, Joe. This is Jack. Yeah, I really think we're prioritizing partnership on this. I mean, A, there's just a lot of ADC companies out there, multiple Trop-2 companies. So, we've had discussions ongoing. A lot of folks are anticipating or waiting for that data to come out. So, that is our preferred path at this point, is to look for a partnership, development capital to be able to do that.
Joseph Thome (Managing Director)
Awesome. Great. We look forward to the update. Thank you.
Operator (participant)
One moment for our next question. Our next question comes from the line of Anupam Rama from JPMorgan. Your line is open.
Speaker 12
Hi, guys. This is Priyanka on for Anupam. I just have one quick question. I think it was mentioned in the call that 60 of the top 100 accounts are using COSELA. How would you tackle those who are not using COSELA, and are there any commonalities between those that you can target?
Andrew Perry (Chief Commercial Officer)
Thanks, Priyanka. Yeah, so actually 78 of the top 100s have trialed COSELA, launched today, and we added three since our last call. So actually, we've continued to add to the number that are trialing. In Q4, 56 of the top 100s had actually ordered during the quarter. That jumped up significantly to 63 in Q1. So that's actually really the biggest jump up that we've seen in quite a few quarters. So you know, the secret to growth, obviously, in those top 100s is continuing to build depth and moving from trial utilization to systematic adoption.
We do continue to add top 100s over time, and things like, you know, the, the guideline improvements we saw in ASCO last year are obviously helpful, as are the real world evidence that we've been able to compile on a medical front. So we continue to make headway in the top 100s, and we continue to see them as a growth driver going forward, and we look forward to reporting success in future.
Speaker 12
Gotcha. Thank you so much.
Operator (participant)
Thank you. One moment for our next question. Our next question comes from the line of Laura Prendergast from Raymond James. Your line is open.
Laura Prendergast (VP - Biotech Equity Research)
Hey, guys. Thanks for taking the questions. Just two quick ones for me. First, as far as in first-line triple-negative breast cancer, what is the expected time on the chemotherapy treatment for a patient versus what you guys have been seeing in lung cancer? And then, if the PRESERVE 2 trial does hit on overall survival, do you expect to be able to get approval beyond first line, based off of the PRESERVE 2 study? You know, just how you guys are thinking about this. Thanks.
Raj Malik (Chief Medical Officer)
Hey, Laura. Yeah. So in terms of the first-line TNBC, obviously, can't comment on our phase III just because it's still ongoing. However, if you refer back to the phase II study, the number of cycles on the median number of cycles is around 8. But if you look at the total cumulative dose of chemo is about 50%-60% greater when patients receive trilaciclib compared to chemotherapy alone. So in terms of your, your, your second question was, could we potentially get approval beyond the first-line indication? You know, this is always gonna be a matter of discussion once we have the data and related to the indication statement.
You know, obviously, our approach will be to try and get as broad an approval as possible with regards to gemcitabine carboplatin combinations, which could, of course, span first line and beyond, but that would be a matter of discussion with the agency.
Laura Prendergast (VP - Biotech Equity Research)
Great. Thanks, guys.
Operator (participant)
Thank you. One moment for our next question. Our next question comes from the line of David Nierengarten from Wedbush. Your line is open.
David Nierengarten (Managing Director)
Hey, thanks for taking the question. I have a follow-up on the Ukrainian patients. I'm wondering if the agencies preferred to include them because it would aid in statistical analysis or, you know, provide a more robust answer. And I ask this because it would seem from moving up in the timeline that events have occurred from that population, so, you know, they would contribute, unless I'm wrong. So that's the question. Thanks.
Raj Malik (Chief Medical Officer)
Yeah, David. Yes. So, events have occurred in those patients, and, and that is the reason why when you count those events, the timeline moved up a little bit to this end of the second quarter. We're obviously blinded. We don't know which, you know, which arm those events actually occurred in. And I think, you know, this is an open question really, in terms of how to deal with patients who are enrolled in Ukraine, and there's really no good guidance out there, in fact, from the FDA or, the European agencies are starting to put something out. So I think it's been sort of all over the board. So we've put, you know, our proposal forward. The agency clearly wants to include all the data, which is what we're doing. So, yeah, that's where we landed.
David Nierengarten (Managing Director)
Okay. Thanks.
Operator (participant)
Thank you. One moment for our next question. Our next question comes from the line of Stephen Bersey from H.C. Wainwright. Your line is open.
Stephen Bersey (Analyst)
Hey, this is Steve on for Ed White. Congratulations on the lerociclib deal. So we're just wondering whether the payments are per indication, and are they gonna be one-time payments? And then also, what triggers the milestone payments, and then the timing on those?
Jack Bailey (CEO)
Yeah. Thanks, Steven. So we're certainly excited about the deal, too. It gives lerociclib the opportunity to obviously benefit patients. So, I didn't catch your first part. In terms of the milestone, they're a combination of both development, regulatory, so those will unfold over time. Your first part of your question was?
Stephen Bersey (Analyst)
So are the payments gonna be per indications, different indications they could go into?
Jack Bailey (CEO)
Yeah, there can be multiple payments based upon multiple indications.
Stephen Bersey (Analyst)
Okay, thank you.
Jack Bailey (CEO)
Yep, thank you.
Operator (participant)
Thank you. And as a reminder, that's star one one for questions, star one one. One moment for our next question. Our next question comes from the line of Tash Hasan from Rodman & Renshaw. Your line is open.
Tashdid Hasan (Biotechnology Equity Research Analyst)
Good morning. This is Tash Hassan on for Tony Butler. If I heard correctly, I think Andrew spoke about the addition of three new headcounts in the sales force. I wonder if you could share your thoughts about how this is expected to help with the commercial efforts in the current setting? And then I have another question.
Andrew Perry (Chief Commercial Officer)
Sure. Yeah, thank you for the question. You know, we always are looking at our sales force size and structure to be able to identify new opportunities and capitalize on them. And, these changes were our effort to do that. I also mentioned that we added a headcount in the West, for example, to do exactly that, to take advantage of some of the opportunities we've identified. In many situations, the success of COSELA relies on sales representatives gaining access to key decision makers, key prescribers, as well as nursing and pharmacy staff. And so our sales team perform an invaluable role with doing that in combination with our market access team, including our strategic accounts team, and then, answering any questions that arise through our medical affairs team.
So in many respects, the continued evolution of our sales force is absolutely critical to our success, and we're delighted to welcome those new folks into our organization.
Tashdid Hasan (Biotechnology Equity Research Analyst)
That's helpful. Thank you. The other question is about small cell lung cancer patients beyond the frontline setting. For example, can you share with us your data? And assuming that there is any, the share of second line and third line markets, and also whether you see a significant number of patients being, you know, dosed with COSELA in the second and third line after having received it in the frontline setting.
Andrew Perry (Chief Commercial Officer)
Sure. Yeah. I can give you an outline of that. So about 90% of our use today is on the first-line setting, about 10% is in second-line plus. Within that 10%, there's topotecan patients, which is part of our indication, as well as patients who are rechallenged with the etoposide platinum. Our overall market share, or our first line market share is around 13%. Our overall market share is not too different from that, and our share in the second-line setting is not too different from that either, certainly double digits of eligible patients in the second-line setting. So there's not huge difference in our market share across first and second-line use. Our focus is mainly first line use because that represents the majority of patients.
Tashdid Hasan (Biotechnology Equity Research Analyst)
Very helpful. Thank you.
Operator (participant)
Thank you. With no further questions in the queue, I'd like to turn it back over to Jack Bailey, CEO, for any closing remarks.
Jack Bailey (CEO)
Thank you, operator. As always, we look forward to keeping everybody updated on our progress. Certainly, thank you for joining us today, and we'll be in touch.
Operator (participant)
Thank you for your participation in today's conference. This does conclude the program. You may now disconnect. Everyone, have a great day.